* [PATCH v3 1/4] arm: nuvoton: Add support for Nuvoton NPCM750 BMC
2022-04-19 5:32 [PATCH v3 0/4] Add Nuvoton NPCM750 support Jim Liu
@ 2022-04-19 5:32 ` Jim Liu
2022-05-05 18:51 ` Tom Rini
2022-04-19 5:32 ` [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750 Jim Liu
` (2 subsequent siblings)
3 siblings, 1 reply; 10+ messages in thread
From: Jim Liu @ 2022-04-19 5:32 UTC (permalink / raw)
To: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, trini; +Cc: u-boot
Add basic support for the Nuvoton NPCM750 EVB (Poleg).
Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
---
Changes for V3:
- remove unused define in poleg.h
- add define to defconfig
Changes for v2:
- coding style cleanup
- remove reset.c and use sysreset function
- re-generate the defconfig
- remove v1 dts/dtsi and use linux upstream dts/dtsi
---
arch/arm/Kconfig | 8 +
arch/arm/Makefile | 1 +
arch/arm/dts/Makefile | 1 +
arch/arm/dts/nuvoton-common-npcm7xx.dtsi | 1120 +++++++++++++++++
arch/arm/dts/nuvoton-npcm750-evb.dts | 405 ++++++
arch/arm/dts/nuvoton-npcm750-pincfg-evb.dtsi | 157 +++
arch/arm/dts/nuvoton-npcm750.dtsi | 62 +
arch/arm/include/asm/arch-npcm7xx/gcr.h | 65 +
arch/arm/mach-npcm/Kconfig | 26 +
arch/arm/mach-npcm/Makefile | 1 +
arch/arm/mach-npcm/npcm7xx/Kconfig | 22 +
arch/arm/mach-npcm/npcm7xx/Makefile | 1 +
arch/arm/mach-npcm/npcm7xx/cpu.c | 66 +
arch/arm/mach-npcm/npcm7xx/l2_cache_pl310.c | 29 +
.../mach-npcm/npcm7xx/l2_cache_pl310_init.S | 71 ++
board/nuvoton/poleg_evb/Kconfig | 25 +
board/nuvoton/poleg_evb/MAINTAINERS | 7 +
board/nuvoton/poleg_evb/Makefile | 1 +
board/nuvoton/poleg_evb/poleg_evb.c | 48 +
configs/poleg_evb_defconfig | 40 +
include/configs/poleg.h | 44 +
.../dt-bindings/reset/nuvoton,npcm7xx-reset.h | 91 ++
22 files changed, 2291 insertions(+)
create mode 100644 arch/arm/dts/nuvoton-common-npcm7xx.dtsi
create mode 100644 arch/arm/dts/nuvoton-npcm750-evb.dts
create mode 100644 arch/arm/dts/nuvoton-npcm750-pincfg-evb.dtsi
create mode 100644 arch/arm/dts/nuvoton-npcm750.dtsi
create mode 100644 arch/arm/include/asm/arch-npcm7xx/gcr.h
create mode 100644 arch/arm/mach-npcm/Kconfig
create mode 100644 arch/arm/mach-npcm/Makefile
create mode 100644 arch/arm/mach-npcm/npcm7xx/Kconfig
create mode 100644 arch/arm/mach-npcm/npcm7xx/Makefile
create mode 100644 arch/arm/mach-npcm/npcm7xx/cpu.c
create mode 100644 arch/arm/mach-npcm/npcm7xx/l2_cache_pl310.c
create mode 100644 arch/arm/mach-npcm/npcm7xx/l2_cache_pl310_init.S
create mode 100644 board/nuvoton/poleg_evb/Kconfig
create mode 100644 board/nuvoton/poleg_evb/MAINTAINERS
create mode 100644 board/nuvoton/poleg_evb/Makefile
create mode 100644 board/nuvoton/poleg_evb/poleg_evb.c
create mode 100644 configs/poleg_evb_defconfig
create mode 100644 include/configs/poleg.h
create mode 100644 include/dt-bindings/reset/nuvoton,npcm7xx-reset.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index efe33a58e1..f4cc5df93b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -977,6 +977,12 @@ config ARCH_NEXELL
select DM
select GPIO_EXTRA_HEADER
+config ARCH_NPCM
+ bool "Support Nuvoton SoCs"
+ select DM
+ select OF_CONTROL
+ imply CMD_DM
+
config ARCH_APPLE
bool "Apple SoCs"
select ARM64
@@ -2256,6 +2262,8 @@ source "arch/arm/mach-imx/Kconfig"
source "arch/arm/mach-nexell/Kconfig"
+source "arch/arm/mach-npcm/Kconfig"
+
source "board/armltd/total_compute/Kconfig"
source "board/bosch/shc/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index ad757e982e..85c23bcf77 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -72,6 +72,7 @@ machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
machine-$(CONFIG_ARCH_MESON) += meson
machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_NEXELL) += nexell
+machine-$(CONFIG_ARCH_NPCM) += npcm
machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
machine-$(CONFIG_ARCH_ORION5X) += orion5x
machine-$(CONFIG_ARCH_OWL) += owl
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index df7b4addf9..70869c6136 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1173,6 +1173,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
mt8516-pumpkin.dtb \
mt8518-ap1-emmc.dtb
+dtb-$(CONFIG_ARCH_NPCM7xx) += nuvoton-npcm750-evb.dtb
dtb-$(CONFIG_XEN) += xenguest-arm64.dtb
dtb-$(CONFIG_ARCH_OCTEONTX) += octeontx.dtb
diff --git a/arch/arm/dts/nuvoton-common-npcm7xx.dtsi b/arch/arm/dts/nuvoton-common-npcm7xx.dtsi
new file mode 100644
index 0000000000..02ee4d78e2
--- /dev/null
+++ b/arch/arm/dts/nuvoton-common-npcm7xx.dtsi
@@ -0,0 +1,1120 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
+#include <dt-bindings/reset/nuvoton,npcm7xx-reset.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ /* external reference clock */
+ clk_refclk: clk_refclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ clock-output-names = "refclk";
+ };
+
+ /* external reference clock for cpu. float in normal operation */
+ clk_sysbypck: clk_sysbypck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <800000000>;
+ clock-output-names = "sysbypck";
+ };
+
+ /* external reference clock for MC. float in normal operation */
+ clk_mcbypck: clk_mcbypck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <800000000>;
+ clock-output-names = "mcbypck";
+ };
+
+ /* external clock signal rg1refck, supplied by the phy */
+ clk_rg1refck: clk_rg1refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ clock-output-names = "clk_rg1refck";
+ };
+
+ /* external clock signal rg2refck, supplied by the phy */
+ clk_rg2refck: clk_rg2refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ clock-output-names = "clk_rg2refck";
+ };
+
+ clk_xin: clk_xin {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ clock-output-names = "clk_xin";
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0xf0000000 0x00900000>;
+
+ scu: scu@3fe000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x3fe000 0x1000>;
+ };
+
+ l2: cache-controller@3fc000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x3fc000 0x1000>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ cache-unified;
+ cache-level = <2>;
+ clocks = <&clk NPCM7XX_CLK_AXI>;
+ arm,shared-override;
+ };
+
+ gic: interrupt-controller@3ff000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x3ff000 0x1000>,
+ <0x3fe100 0x100>;
+ };
+
+ gcr: gcr@800000 {
+ compatible = "nuvoton,npcm750-gcr", "syscon", "simple-mfd";
+ reg = <0x800000 0x1000>;
+ };
+
+ rst: rst@801000 {
+ compatible = "nuvoton,npcm750-rst", "syscon", "simple-mfd";
+ reg = <0x801000 0x6C>;
+ };
+ };
+
+ ahb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges;
+
+ rstc: rstc@f0801000 {
+ compatible = "nuvoton,npcm750-reset";
+ reg = <0xf0801000 0x70>;
+ #reset-cells = <2>;
+ };
+
+ clk: clock-controller@f0801000 {
+ compatible = "nuvoton,npcm750-clk", "syscon";
+ #clock-cells = <1>;
+ clock-controller;
+ reg = <0xf0801000 0x1000>;
+ clock-names = "refclk", "sysbypck", "mcbypck";
+ clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
+ };
+
+ gmac0: eth@f0802000 {
+ device_type = "network";
+ compatible = "nuvoton,npcm-dwmac";
+ reg = <0xf0802000 0x2000>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ ethernet = <0>;
+ clocks = <&clk_rg1refck>, <&clk NPCM7XX_CLK_AHB>;
+ clock-names = "stmmaceth", "clk_gmac";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rg1_pins
+ &rg1mdio_pins>;
+ status = "disabled";
+ };
+
+ ehci1: usb@f0806000 {
+ compatible = "nuvoton,npcm750-ehci";
+ reg = <0xf0806000 0x1000>;
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ fiu0: spi@fb000000 {
+ compatible = "nuvoton,npcm750-fiu";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xfb000000 0x1000>;
+ reg-names = "control", "memory";
+ clocks = <&clk NPCM7XX_CLK_SPI0>;
+ clock-names = "clk_spi0";
+ status = "disabled";
+ };
+
+ fiu3: spi@c0000000 {
+ compatible = "nuvoton,npcm750-fiu";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xc0000000 0x1000>;
+ reg-names = "control", "memory";
+ clocks = <&clk NPCM7XX_CLK_SPI3>;
+ clock-names = "clk_spi3";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi3_pins>;
+ status = "disabled";
+ };
+
+ fiux: spi@fb001000 {
+ compatible = "nuvoton,npcm750-fiu";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xfb001000 0x1000>;
+ reg-names = "control", "memory";
+ clocks = <&clk NPCM7XX_CLK_SPIX>;
+ clock-names = "clk_spix";
+ status = "disabled";
+ };
+
+ apb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0xf0000000 0x00300000>;
+
+ lpc_kcs: lpc_kcs@7000 {
+ compatible = "nuvoton,npcm750-lpc-kcs", "simple-mfd", "syscon";
+ reg = <0x7000 0x40>;
+ reg-io-width = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x7000 0x40>;
+
+ kcs1: kcs1@0 {
+ compatible = "nuvoton,npcm750-kcs-bmc";
+ reg = <0x0 0x40>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ kcs_chan = <1>;
+ status = "disabled";
+ };
+
+ kcs2: kcs2@0 {
+ compatible = "nuvoton,npcm750-kcs-bmc";
+ reg = <0x0 0x40>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ kcs_chan = <2>;
+ status = "disabled";
+ };
+
+ kcs3: kcs3@0 {
+ compatible = "nuvoton,npcm750-kcs-bmc";
+ reg = <0x0 0x40>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ kcs_chan = <3>;
+ status = "disabled";
+ };
+ };
+
+ spi0: spi@200000 {
+ compatible = "nuvoton,npcm750-pspi";
+ reg = <0x200000 0x1000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pspi1_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk NPCM7XX_CLK_APB5>;
+ clock-names = "clk_apb5";
+ resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>;
+ status = "disabled";
+ };
+
+ spi1: spi@201000 {
+ compatible = "nuvoton,npcm750-pspi";
+ reg = <0x201000 0x1000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pspi2_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk NPCM7XX_CLK_APB5>;
+ clock-names = "clk_apb5";
+ resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI2>;
+ status = "disabled";
+ };
+
+ timer0: timer@8000 {
+ compatible = "nuvoton,npcm750-timer";
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x8000 0x1C>;
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog0: watchdog@801C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x801C 0x4>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog1: watchdog@901C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x901C 0x4>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ watchdog2: watchdog@a01C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xa01C 0x4>;
+ status = "disabled";
+ clocks = <&clk NPCM7XX_CLK_TIMER>;
+ };
+
+ serial0: serial@1000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x1000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART>, <&clk NPCM7XX_CLK_PLL2DIV2>;
+ interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial1: serial@2000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x2000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART>, <&clk NPCM7XX_CLK_PLL2DIV2>;
+ interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial2: serial@3000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x3000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART>, <&clk NPCM7XX_CLK_PLL2DIV2>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial3: serial@4000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x4000 0x1000>;
+ clocks = <&clk NPCM7XX_CLK_UART>, <&clk NPCM7XX_CLK_PLL2DIV2>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ rng: rng@b000 {
+ compatible = "nuvoton,npcm750-rng";
+ reg = <0xb000 0x8>;
+ status = "disabled";
+ };
+
+ adc: adc@c000 {
+ compatible = "nuvoton,npcm750-adc";
+ reg = <0xc000 0x8>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk NPCM7XX_CLK_ADC>;
+ resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;
+ status = "disabled";
+ };
+
+ pwm_fan: pwm-fan-controller@103000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "nuvoton,npcm750-pwm-fan";
+ reg = <0x103000 0x2000>, <0x180000 0x8000>;
+ reg-names = "pwm", "fan";
+ clocks = <&clk NPCM7XX_CLK_APB3>,
+ <&clk NPCM7XX_CLK_APB4>;
+ clock-names = "pwm","fan";
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins &pwm1_pins
+ &pwm2_pins &pwm3_pins
+ &pwm4_pins &pwm5_pins
+ &pwm6_pins &pwm7_pins
+ &fanin0_pins &fanin1_pins
+ &fanin2_pins &fanin3_pins
+ &fanin4_pins &fanin5_pins
+ &fanin6_pins &fanin7_pins
+ &fanin8_pins &fanin9_pins
+ &fanin10_pins &fanin11_pins
+ &fanin12_pins &fanin13_pins
+ &fanin14_pins &fanin15_pins>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@80000 {
+ reg = <0x80000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb0_pins>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@81000 {
+ reg = <0x81000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb1_pins>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@82000 {
+ reg = <0x82000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb2_pins>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@83000 {
+ reg = <0x83000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb3_pins>;
+ status = "disabled";
+ };
+
+ i2c4: i2c@84000 {
+ reg = <0x84000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb4_pins>;
+ status = "disabled";
+ };
+
+ i2c5: i2c@85000 {
+ reg = <0x85000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb5_pins>;
+ status = "disabled";
+ };
+
+ i2c6: i2c@86000 {
+ reg = <0x86000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb6_pins>;
+ status = "disabled";
+ };
+
+ i2c7: i2c@87000 {
+ reg = <0x87000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb7_pins>;
+ status = "disabled";
+ };
+
+ i2c8: i2c@88000 {
+ reg = <0x88000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb8_pins>;
+ status = "disabled";
+ };
+
+ i2c9: i2c@89000 {
+ reg = <0x89000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb9_pins>;
+ status = "disabled";
+ };
+
+ i2c10: i2c@8a000 {
+ reg = <0x8a000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb10_pins>;
+ status = "disabled";
+ };
+
+ i2c11: i2c@8b000 {
+ reg = <0x8b000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb11_pins>;
+ status = "disabled";
+ };
+
+ i2c12: i2c@8c000 {
+ reg = <0x8c000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb12_pins>;
+ status = "disabled";
+ };
+
+ i2c13: i2c@8d000 {
+ reg = <0x8d000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb13_pins>;
+ status = "disabled";
+ };
+
+ i2c14: i2c@8e000 {
+ reg = <0x8e000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb14_pins>;
+ status = "disabled";
+ };
+
+ i2c15: i2c@8f000 {
+ reg = <0x8f000 0x1000>;
+ compatible = "nuvoton,npcm750-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&clk NPCM7XX_CLK_APB2>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&smb15_pins>;
+ status = "disabled";
+ };
+ };
+ };
+
+ pinctrl: pinctrl@f0800000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "nuvoton,npcm750-pinctrl", "syscon", "simple-mfd";
+ ranges = <0 0xf0010000 0x8000>;
+ gpio0: gpio@f0010000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x0 0x80>;
+ interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 0 32>;
+ };
+ gpio1: gpio@f0011000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x1000 0x80>;
+ interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 32 32>;
+ };
+ gpio2: gpio@f0012000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x2000 0x80>;
+ interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 64 32>;
+ };
+ gpio3: gpio@f0013000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x3000 0x80>;
+ interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 96 32>;
+ };
+ gpio4: gpio@f0014000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x4000 0x80>;
+ interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 128 32>;
+ };
+ gpio5: gpio@f0015000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x5000 0x80>;
+ interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 160 32>;
+ };
+ gpio6: gpio@f0016000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x6000 0x80>;
+ interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 192 32>;
+ };
+ gpio7: gpio@f0017000 {
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0x7000 0x80>;
+ interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-ranges = <&pinctrl 0 224 32>;
+ };
+
+ iox1_pins: iox1-pins {
+ groups = "iox1";
+ function = "iox1";
+ };
+ iox2_pins: iox2-pins {
+ groups = "iox2";
+ function = "iox2";
+ };
+ smb1d_pins: smb1d-pins {
+ groups = "smb1d";
+ function = "smb1d";
+ };
+ smb2d_pins: smb2d-pins {
+ groups = "smb2d";
+ function = "smb2d";
+ };
+ lkgpo1_pins: lkgpo1-pins {
+ groups = "lkgpo1";
+ function = "lkgpo1";
+ };
+ lkgpo2_pins: lkgpo2-pins {
+ groups = "lkgpo2";
+ function = "lkgpo2";
+ };
+ ioxh_pins: ioxh-pins {
+ groups = "ioxh";
+ function = "ioxh";
+ };
+ gspi_pins: gspi-pins {
+ groups = "gspi";
+ function = "gspi";
+ };
+ smb5b_pins: smb5b-pins {
+ groups = "smb5b";
+ function = "smb5b";
+ };
+ smb5c_pins: smb5c-pins {
+ groups = "smb5c";
+ function = "smb5c";
+ };
+ lkgpo0_pins: lkgpo0-pins {
+ groups = "lkgpo0";
+ function = "lkgpo0";
+ };
+ pspi2_pins: pspi2-pins {
+ groups = "pspi2";
+ function = "pspi2";
+ };
+ smb4den_pins: smb4den-pins {
+ groups = "smb4den";
+ function = "smb4den";
+ };
+ smb4b_pins: smb4b-pins {
+ groups = "smb4b";
+ function = "smb4b";
+ };
+ smb4c_pins: smb4c-pins {
+ groups = "smb4c";
+ function = "smb4c";
+ };
+ smb15_pins: smb15-pins {
+ groups = "smb15";
+ function = "smb15";
+ };
+ smb4d_pins: smb4d-pins {
+ groups = "smb4d";
+ function = "smb4d";
+ };
+ smb14_pins: smb14-pins {
+ groups = "smb14";
+ function = "smb14";
+ };
+ smb5_pins: smb5-pins {
+ groups = "smb5";
+ function = "smb5";
+ };
+ smb4_pins: smb4-pins {
+ groups = "smb4";
+ function = "smb4";
+ };
+ smb3_pins: smb3-pins {
+ groups = "smb3";
+ function = "smb3";
+ };
+ spi0cs1_pins: spi0cs1-pins {
+ groups = "spi0cs1";
+ function = "spi0cs1";
+ };
+ spi0cs2_pins: spi0cs2-pins {
+ groups = "spi0cs2";
+ function = "spi0cs2";
+ };
+ spi0cs3_pins: spi0cs3-pins {
+ groups = "spi0cs3";
+ function = "spi0cs3";
+ };
+ smb3c_pins: smb3c-pins {
+ groups = "smb3c";
+ function = "smb3c";
+ };
+ smb3b_pins: smb3b-pins {
+ groups = "smb3b";
+ function = "smb3b";
+ };
+ bmcuart0a_pins: bmcuart0a-pins {
+ groups = "bmcuart0a";
+ function = "bmcuart0a";
+ };
+ uart1_pins: uart1-pins {
+ groups = "uart1";
+ function = "uart1";
+ };
+ jtag2_pins: jtag2-pins {
+ groups = "jtag2";
+ function = "jtag2";
+ };
+ bmcuart1_pins: bmcuart1-pins {
+ groups = "bmcuart1";
+ function = "bmcuart1";
+ };
+ uart2_pins: uart2-pins {
+ groups = "uart2";
+ function = "uart2";
+ };
+ bmcuart0b_pins: bmcuart0b-pins {
+ groups = "bmcuart0b";
+ function = "bmcuart0b";
+ };
+ r1err_pins: r1err-pins {
+ groups = "r1err";
+ function = "r1err";
+ };
+ r1md_pins: r1md-pins {
+ groups = "r1md";
+ function = "r1md";
+ };
+ smb3d_pins: smb3d-pins {
+ groups = "smb3d";
+ function = "smb3d";
+ };
+ fanin0_pins: fanin0-pins {
+ groups = "fanin0";
+ function = "fanin0";
+ };
+ fanin1_pins: fanin1-pins {
+ groups = "fanin1";
+ function = "fanin1";
+ };
+ fanin2_pins: fanin2-pins {
+ groups = "fanin2";
+ function = "fanin2";
+ };
+ fanin3_pins: fanin3-pins {
+ groups = "fanin3";
+ function = "fanin3";
+ };
+ fanin4_pins: fanin4-pins {
+ groups = "fanin4";
+ function = "fanin4";
+ };
+ fanin5_pins: fanin5-pins {
+ groups = "fanin5";
+ function = "fanin5";
+ };
+ fanin6_pins: fanin6-pins {
+ groups = "fanin6";
+ function = "fanin6";
+ };
+ fanin7_pins: fanin7-pins {
+ groups = "fanin7";
+ function = "fanin7";
+ };
+ fanin8_pins: fanin8-pins {
+ groups = "fanin8";
+ function = "fanin8";
+ };
+ fanin9_pins: fanin9-pins {
+ groups = "fanin9";
+ function = "fanin9";
+ };
+ fanin10_pins: fanin10-pins {
+ groups = "fanin10";
+ function = "fanin10";
+ };
+ fanin11_pins: fanin11-pins {
+ groups = "fanin11";
+ function = "fanin11";
+ };
+ fanin12_pins: fanin12-pins {
+ groups = "fanin12";
+ function = "fanin12";
+ };
+ fanin13_pins: fanin13-pins {
+ groups = "fanin13";
+ function = "fanin13";
+ };
+ fanin14_pins: fanin14-pins {
+ groups = "fanin14";
+ function = "fanin14";
+ };
+ fanin15_pins: fanin15-pins {
+ groups = "fanin15";
+ function = "fanin15";
+ };
+ pwm0_pins: pwm0-pins {
+ groups = "pwm0";
+ function = "pwm0";
+ };
+ pwm1_pins: pwm1-pins {
+ groups = "pwm1";
+ function = "pwm1";
+ };
+ pwm2_pins: pwm2-pins {
+ groups = "pwm2";
+ function = "pwm2";
+ };
+ pwm3_pins: pwm3-pins {
+ groups = "pwm3";
+ function = "pwm3";
+ };
+ r2_pins: r2-pins {
+ groups = "r2";
+ function = "r2";
+ };
+ r2err_pins: r2err-pins {
+ groups = "r2err";
+ function = "r2err";
+ };
+ r2md_pins: r2md-pins {
+ groups = "r2md";
+ function = "r2md";
+ };
+ ga20kbc_pins: ga20kbc-pins {
+ groups = "ga20kbc";
+ function = "ga20kbc";
+ };
+ smb5d_pins: smb5d-pins {
+ groups = "smb5d";
+ function = "smb5d";
+ };
+ lpc_pins: lpc-pins {
+ groups = "lpc";
+ function = "lpc";
+ };
+ espi_pins: espi-pins {
+ groups = "espi";
+ function = "espi";
+ };
+ rg1_pins: rg1-pins {
+ groups = "rg1";
+ function = "rg1";
+ };
+ rg1mdio_pins: rg1mdio-pins {
+ groups = "rg1mdio";
+ function = "rg1mdio";
+ };
+ rg2_pins: rg2-pins {
+ groups = "rg2";
+ function = "rg2";
+ };
+ ddr_pins: ddr-pins {
+ groups = "ddr";
+ function = "ddr";
+ };
+ smb0_pins: smb0-pins {
+ groups = "smb0";
+ function = "smb0";
+ };
+ smb1_pins: smb1-pins {
+ groups = "smb1";
+ function = "smb1";
+ };
+ smb2_pins: smb2-pins {
+ groups = "smb2";
+ function = "smb2";
+ };
+ smb2c_pins: smb2c-pins {
+ groups = "smb2c";
+ function = "smb2c";
+ };
+ smb2b_pins: smb2b-pins {
+ groups = "smb2b";
+ function = "smb2b";
+ };
+ smb1c_pins: smb1c-pins {
+ groups = "smb1c";
+ function = "smb1c";
+ };
+ smb1b_pins: smb1b-pins {
+ groups = "smb1b";
+ function = "smb1b";
+ };
+ smb8_pins: smb8-pins {
+ groups = "smb8";
+ function = "smb8";
+ };
+ smb9_pins: smb9-pins {
+ groups = "smb9";
+ function = "smb9";
+ };
+ smb10_pins: smb10-pins {
+ groups = "smb10";
+ function = "smb10";
+ };
+ smb11_pins: smb11-pins {
+ groups = "smb11";
+ function = "smb11";
+ };
+ sd1_pins: sd1-pins {
+ groups = "sd1";
+ function = "sd1";
+ };
+ sd1pwr_pins: sd1pwr-pins {
+ groups = "sd1pwr";
+ function = "sd1pwr";
+ };
+ pwm4_pins: pwm4-pins {
+ groups = "pwm4";
+ function = "pwm4";
+ };
+ pwm5_pins: pwm5-pins {
+ groups = "pwm5";
+ function = "pwm5";
+ };
+ pwm6_pins: pwm6-pins {
+ groups = "pwm6";
+ function = "pwm6";
+ };
+ pwm7_pins: pwm7-pins {
+ groups = "pwm7";
+ function = "pwm7";
+ };
+ mmc8_pins: mmc8-pins {
+ groups = "mmc8";
+ function = "mmc8";
+ };
+ mmc_pins: mmc-pins {
+ groups = "mmc";
+ function = "mmc";
+ };
+ mmcwp_pins: mmcwp-pins {
+ groups = "mmcwp";
+ function = "mmcwp";
+ };
+ mmccd_pins: mmccd-pins {
+ groups = "mmccd";
+ function = "mmccd";
+ };
+ mmcrst_pins: mmcrst-pins {
+ groups = "mmcrst";
+ function = "mmcrst";
+ };
+ clkout_pins: clkout-pins {
+ groups = "clkout";
+ function = "clkout";
+ };
+ serirq_pins: serirq-pins {
+ groups = "serirq";
+ function = "serirq";
+ };
+ lpcclk_pins: lpcclk-pins {
+ groups = "lpcclk";
+ function = "lpcclk";
+ };
+ scipme_pins: scipme-pins {
+ groups = "scipme";
+ function = "scipme";
+ };
+ sci_pins: sci-pins {
+ groups = "sci";
+ function = "sci";
+ };
+ smb6_pins: smb6-pins {
+ groups = "smb6";
+ function = "smb6";
+ };
+ smb7_pins: smb7-pins {
+ groups = "smb7";
+ function = "smb7";
+ };
+ pspi1_pins: pspi1-pins {
+ groups = "pspi1";
+ function = "pspi1";
+ };
+ faninx_pins: faninx-pins {
+ groups = "faninx";
+ function = "faninx";
+ };
+ r1_pins: r1-pins {
+ groups = "r1";
+ function = "r1";
+ };
+ spi3_pins: spi3-pins {
+ groups = "spi3";
+ function = "spi3";
+ };
+ spi3cs1_pins: spi3cs1-pins {
+ groups = "spi3cs1";
+ function = "spi3cs1";
+ };
+ spi3quad_pins: spi3quad-pins {
+ groups = "spi3quad";
+ function = "spi3quad";
+ };
+ spi3cs2_pins: spi3cs2-pins {
+ groups = "spi3cs2";
+ function = "spi3cs2";
+ };
+ spi3cs3_pins: spi3cs3-pins {
+ groups = "spi3cs3";
+ function = "spi3cs3";
+ };
+ nprd_smi_pins: nprd-smi-pins {
+ groups = "nprd_smi";
+ function = "nprd_smi";
+ };
+ smb0b_pins: smb0b-pins {
+ groups = "smb0b";
+ function = "smb0b";
+ };
+ smb0c_pins: smb0c-pins {
+ groups = "smb0c";
+ function = "smb0c";
+ };
+ smb0den_pins: smb0den-pins {
+ groups = "smb0den";
+ function = "smb0den";
+ };
+ smb0d_pins: smb0d-pins {
+ groups = "smb0d";
+ function = "smb0d";
+ };
+ ddc_pins: ddc-pins {
+ groups = "ddc";
+ function = "ddc";
+ };
+ rg2mdio_pins: rg2mdio-pins {
+ groups = "rg2mdio";
+ function = "rg2mdio";
+ };
+ wdog1_pins: wdog1-pins {
+ groups = "wdog1";
+ function = "wdog1";
+ };
+ wdog2_pins: wdog2-pins {
+ groups = "wdog2";
+ function = "wdog2";
+ };
+ smb12_pins: smb12-pins {
+ groups = "smb12";
+ function = "smb12";
+ };
+ smb13_pins: smb13-pins {
+ groups = "smb13";
+ function = "smb13";
+ };
+ spix_pins: spix-pins {
+ groups = "spix";
+ function = "spix";
+ };
+ spixcs1_pins: spixcs1-pins {
+ groups = "spixcs1";
+ function = "spixcs1";
+ };
+ clkreq_pins: clkreq-pins {
+ groups = "clkreq";
+ function = "clkreq";
+ };
+ hgpio0_pins: hgpio0-pins {
+ groups = "hgpio0";
+ function = "hgpio0";
+ };
+ hgpio1_pins: hgpio1-pins {
+ groups = "hgpio1";
+ function = "hgpio1";
+ };
+ hgpio2_pins: hgpio2-pins {
+ groups = "hgpio2";
+ function = "hgpio2";
+ };
+ hgpio3_pins: hgpio3-pins {
+ groups = "hgpio3";
+ function = "hgpio3";
+ };
+ hgpio4_pins: hgpio4-pins {
+ groups = "hgpio4";
+ function = "hgpio4";
+ };
+ hgpio5_pins: hgpio5-pins {
+ groups = "hgpio5";
+ function = "hgpio5";
+ };
+ hgpio6_pins: hgpio6-pins {
+ groups = "hgpio6";
+ function = "hgpio6";
+ };
+ hgpio7_pins: hgpio7-pins {
+ groups = "hgpio7";
+ function = "hgpio7";
+ };
+ };
+};
diff --git a/arch/arm/dts/nuvoton-npcm750-evb.dts b/arch/arm/dts/nuvoton-npcm750-evb.dts
new file mode 100644
index 0000000000..3e4abe6610
--- /dev/null
+++ b/arch/arm/dts/nuvoton-npcm750-evb.dts
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@nuvoton.com
+// Copyright 2018 Google, Inc.
+
+/dts-v1/;
+#include "nuvoton-npcm750.dtsi"
+#include "dt-bindings/gpio/gpio.h"
+#include "nuvoton-npcm750-pincfg-evb.dtsi"
+
+/ {
+ model = "Nuvoton npcm750 Development Board (Device Tree)";
+ compatible = "nuvoton,npcm750-evb", "nuvoton,npcm750";
+
+ aliases {
+ ethernet2 = &gmac0;
+ ethernet3 = &gmac1;
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ serial3 = &serial3;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ i2c6 = &i2c6;
+ i2c7 = &i2c7;
+ i2c8 = &i2c8;
+ i2c9 = &i2c9;
+ i2c10 = &i2c10;
+ i2c11 = &i2c11;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
+ i2c14 = &i2c14;
+ i2c15 = &i2c15;
+ spi0 = &spi0;
+ spi1 = &spi1;
+ fiu0 = &fiu0;
+ fiu1 = &fiu3;
+ fiu2 = &fiux;
+ };
+
+ chosen {
+ stdout-path = &serial0;
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x20000000>;
+ };
+};
+
+&gmac0 {
+ phy-mode = "rgmii-id";
+ status = "okay";
+};
+
+&gmac1 {
+ phy-mode = "rgmii-id";
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&fiu0 {
+ status = "okay";
+ spi-nor@0 {
+ compatible = "jedec,spi-nor";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-rx-bus-width = <2>;
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ partitions@80000000 {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ bbuboot1@0 {
+ label = "bb-uboot-1";
+ reg = <0x0000000 0x80000>;
+ read-only;
+ };
+ bbuboot2@80000 {
+ label = "bb-uboot-2";
+ reg = <0x0080000 0x80000>;
+ read-only;
+ };
+ envparam@100000 {
+ label = "env-param";
+ reg = <0x0100000 0x40000>;
+ read-only;
+ };
+ spare@140000 {
+ label = "spare";
+ reg = <0x0140000 0xC0000>;
+ };
+ kernel@200000 {
+ label = "kernel";
+ reg = <0x0200000 0x400000>;
+ };
+ rootfs@600000 {
+ label = "rootfs";
+ reg = <0x0600000 0x700000>;
+ };
+ spare1@d00000 {
+ label = "spare1";
+ reg = <0x0D00000 0x200000>;
+ };
+ spare2@f00000 {
+ label = "spare2";
+ reg = <0x0F00000 0x200000>;
+ };
+ spare3@1100000 {
+ label = "spare3";
+ reg = <0x1100000 0x200000>;
+ };
+ spare4@1300000 {
+ label = "spare4";
+ reg = <0x1300000 0x0>;
+ };
+ };
+ };
+};
+
+&fiu3 {
+ pinctrl-0 = <&spi3_pins>, <&spi3quad_pins>;
+ status = "okay";
+ spi-nor@0 {
+ compatible = "jedec,spi-nor";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-rx-bus-width = <2>;
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ partitions@A0000000 {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ system1@0 {
+ label = "spi3-system1";
+ reg = <0x0 0x0>;
+ };
+ };
+ };
+};
+
+&fiux {
+ spix-mode;
+};
+
+&watchdog1 {
+ status = "okay";
+};
+
+&rng {
+ status = "okay";
+};
+
+&serial0 {
+ status = "okay";
+ clock-frequency = <24000000>;
+};
+
+&serial1 {
+ status = "okay";
+};
+
+&serial2 {
+ status = "okay";
+};
+
+&serial3 {
+ status = "okay";
+};
+
+&adc {
+ status = "okay";
+};
+
+&lpc_kcs {
+ kcs1: kcs1@0 {
+ status = "okay";
+ };
+
+ kcs2: kcs2@0 {
+ status = "okay";
+ };
+
+ kcs3: kcs3@0 {
+ status = "okay";
+ };
+};
+
+/* lm75 on SVB */
+&i2c0 {
+ clock-frequency = <100000>;
+ status = "okay";
+ lm75@48 {
+ compatible = "lm75";
+ reg = <0x48>;
+ status = "okay";
+ };
+};
+
+/* lm75 on EB */
+&i2c1 {
+ clock-frequency = <100000>;
+ status = "okay";
+ lm75@48 {
+ compatible = "lm75";
+ reg = <0x48>;
+ status = "okay";
+ };
+};
+
+/* tmp100 on EB */
+&i2c2 {
+ clock-frequency = <100000>;
+ status = "okay";
+ tmp100@48 {
+ compatible = "tmp100";
+ reg = <0x48>;
+ status = "okay";
+ };
+};
+
+&i2c3 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c5 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+/* tmp100 on SVB */
+&i2c6 {
+ clock-frequency = <100000>;
+ status = "okay";
+ tmp100@48 {
+ compatible = "tmp100";
+ reg = <0x48>;
+ status = "okay";
+ };
+};
+
+&i2c7 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c8 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c9 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c10 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c11 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&i2c14 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&pwm_fan {
+ status = "okay";
+ fan@0 {
+ reg = <0x00>;
+ fan-tach-ch = /bits/ 8 <0x00 0x01>;
+ cooling-levels = <127 255>;
+ };
+ fan@1 {
+ reg = <0x01>;
+ fan-tach-ch = /bits/ 8 <0x02 0x03>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@2 {
+ reg = <0x02>;
+ fan-tach-ch = /bits/ 8 <0x04 0x05>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@3 {
+ reg = <0x03>;
+ fan-tach-ch = /bits/ 8 <0x06 0x07>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@4 {
+ reg = <0x04>;
+ fan-tach-ch = /bits/ 8 <0x08 0x09>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@5 {
+ reg = <0x05>;
+ fan-tach-ch = /bits/ 8 <0x0A 0x0B>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@6 {
+ reg = <0x06>;
+ fan-tach-ch = /bits/ 8 <0x0C 0x0D>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+ fan@7 {
+ reg = <0x07>;
+ fan-tach-ch = /bits/ 8 <0x0E 0x0F>;
+ cooling-levels = /bits/ 8 <127 255>;
+ };
+};
+
+&spi0 {
+ cs-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ Flash@0 {
+ compatible = "winbond,w25q128",
+ "jedec,spi-nor";
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-max-frequency = <5000000>;
+ partition@0 {
+ label = "spi0_spare1";
+ reg = <0x0000000 0x800000>;
+ };
+ partition@1 {
+ label = "spi0_spare2";
+ reg = <0x800000 0x0>;
+ };
+ };
+};
+
+&spi1 {
+ cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
+ status = "okay";
+ Flash@0 {
+ compatible = "winbond,w25q128fw",
+ "jedec,spi-nor";
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-max-frequency = <5000000>;
+ partition@0 {
+ label = "spi1_spare1";
+ reg = <0x0000000 0x800000>;
+ };
+ partition@1 {
+ label = "spi1_spare2";
+ reg = <0x800000 0x0>;
+ };
+ };
+};
+
+&pinctrl {
+ pinctrl-names = "default";
+ pinctrl-0 = < &iox1_pins
+ &pin8_input
+ &pin9_output_high
+ &pin10_input
+ &pin11_output_high
+ &pin16_input
+ &pin24_output_high
+ &pin25_output_low
+ &pin32_output_high
+ &jtag2_pins
+ &pin61_output_high
+ &pin62_output_high
+ &pin63_output_high
+ &lpc_pins
+ &pin160_input
+ &pin162_input
+ &pin168_input
+ &pin169_input
+ &pin170_input
+ &pin187_output_high
+ &pin190_input
+ &pin191_output_high
+ &pin192_output_high
+ &pin197_output_low
+ &ddc_pins
+ &pin218_input
+ &pin219_output_low
+ &pin220_output_low
+ &pin221_output_high
+ &pin222_input
+ &pin223_output_low
+ &spix_pins
+ &pin228_output_low
+ &pin231_output_high
+ &pin255_input>;
+};
+
diff --git a/arch/arm/dts/nuvoton-npcm750-pincfg-evb.dtsi b/arch/arm/dts/nuvoton-npcm750-pincfg-evb.dtsi
new file mode 100644
index 0000000000..3b3806274a
--- /dev/null
+++ b/arch/arm/dts/nuvoton-npcm750-pincfg-evb.dtsi
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology
+
+/ {
+ pinctrl: pinctrl@f0800000 {
+ pin8_input: pin8-input {
+ pins = "GPIO8/LKGPO1";
+ bias-disable;
+ input-enable;
+ };
+ pin9_output_high: pin9-output-high {
+ pins = "GPIO9/LKGPO2";
+ bias-disable;
+ output-high;
+ };
+ pin10_input: pin10-input {
+ pins = "GPIO10/IOXHLD";
+ bias-disable;
+ input-enable;
+ };
+ pin11_output_high: pin11-output-high {
+ pins = "GPIO11/IOXHCK";
+ bias-disable;
+ output-high;
+ };
+ pin16_input: pin16-input {
+ pins = "GPIO16/LKGPO0";
+ bias-disable;
+ input-enable;
+ };
+ pin24_output_high: pin24-output-high {
+ pins = "GPIO24/IOXHDO";
+ bias-disable;
+ output-high;
+ };
+ pin25_output_low: pin25-output-low {
+ pins = "GPIO25/IOXHDI";
+ bias-disable;
+ output-low;
+ };
+ pin32_output_high: pin32-output-high {
+ pins = "GPIO32/nSPI0CS1";
+ bias-disable;
+ output-high;
+ };
+ pin61_output_high: pin61-output-high {
+ pins = "GPO61/nDTR1_BOUT1/STRAP6";
+ bias-disable;
+ output-high;
+ };
+ pin62_output_high: pin62-output-high {
+ pins = "GPO62/nRTST1/STRAP5";
+ bias-disable;
+ output-high;
+ };
+ pin63_output_high: pin63-output-high {
+ pins = "GPO63/TXD1/STRAP4";
+ bias-disable;
+ output-high;
+ };
+ pin160_input: pin160-input {
+ pins = "GPIO160/CLKOUT/RNGOSCOUT";
+ bias-disable;
+ input-enable;
+ };
+ pin162_input: pin162-input {
+ pins = "GPIO162/SERIRQ";
+ bias-disable;
+ input-enable;
+ };
+ pin168_input: pin168-input {
+ pins = "GPIO168/nCLKRUN/nESPIALERT";
+ bias-disable;
+ input-enable;
+ };
+ pin169_input: pin169-input {
+ pins = "GPIO169/nSCIPME";
+ bias-disable;
+ input-enable;
+ };
+ pin170_input: pin170-input {
+ pins = "GPIO170/nSMI";
+ bias-disable;
+ input-enable;
+ };
+ pin187_output_high: pin187-output-high {
+ pins = "GPIO187/nSPI3CS1";
+ bias-disable;
+ output-high;
+ };
+ pin190_input: pin190-input {
+ pins = "GPIO190/nPRD_SMI";
+ bias-disable;
+ input-enable;
+ };
+ pin191_output_high: pin191-output-high {
+ pins = "GPIO191";
+ bias-disable;
+ output-high;
+ };
+ pin192_output_high: pin192-output-high {
+ pins = "GPIO192";
+ bias-disable;
+ output-high;
+ };
+ pin197_output_low: pin197-output-low {
+ pins = "GPIO197/SMB0DEN";
+ bias-disable;
+ output-low;
+ };
+ pin218_input: pin218-input {
+ pins = "GPIO218/nWDO1";
+ bias-disable;
+ input-enable;
+ };
+ pin219_output_low: pin219-output-low {
+ pins = "GPIO219/nWDO2";
+ bias-disable;
+ output-low;
+ };
+ pin220_output_low: pin220-output-low {
+ pins = "GPIO220/SMB12SCL";
+ bias-disable;
+ output-low;
+ };
+ pin221_output_high: pin221-output-high {
+ pins = "GPIO221/SMB12SDA";
+ bias-disable;
+ output-high;
+ };
+ pin222_input: pin222-input {
+ pins = "GPIO222/SMB13SCL";
+ bias-disable;
+ input-enable;
+ };
+ pin223_output_low: pin223-output-low {
+ pins = "GPIO223/SMB13SDA";
+ bias-disable;
+ output-low;
+ };
+ pin228_output_low: pin228-output-low {
+ pins = "GPIO228/nSPIXCS1";
+ bias-disable;
+ output-low;
+ };
+ pin231_output_high: pin231-output-high {
+ pins = "GPIO230/SPIXD3";
+ bias-disable;
+ output-high;
+ };
+ pin255_input: pin255-input {
+ pins = "GPI255/DACOSEL";
+ bias-disable;
+ input-enable;
+ };
+ };
+};
diff --git a/arch/arm/dts/nuvoton-npcm750.dtsi b/arch/arm/dts/nuvoton-npcm750.dtsi
new file mode 100644
index 0000000000..13eee0fe56
--- /dev/null
+++ b/arch/arm/dts/nuvoton-npcm750.dtsi
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@nuvoton.com
+// Copyright 2018 Google, Inc.
+
+#include "nuvoton-common-npcm7xx.dtsi"
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "nuvoton,npcm750-smp";
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk NPCM7XX_CLK_CPU>;
+ clock-names = "clk_cpu";
+ reg = <1>;
+ next-level-cache = <&l2>;
+ };
+ };
+
+ soc {
+ timer@3fe600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x3fe600 0x20>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>;
+ clocks = <&clk NPCM7XX_CLK_AHB>;
+ };
+ };
+
+ ahb {
+ gmac1: eth@f0804000 {
+ device_type = "network";
+ compatible = "snps,dwmac";
+ reg = <0xf0804000 0x2000>;
+ interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ ethernet = <1>;
+ clocks = <&clk_rg2refck>, <&clk NPCM7XX_CLK_AHB>;
+ clock-names = "stmmaceth", "clk_gmac";
+ pinctrl-names = "default";
+ pinctrl-0 = <&rg2_pins
+ &rg2mdio_pins>;
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm/include/asm/arch-npcm7xx/gcr.h b/arch/arm/include/asm/arch-npcm7xx/gcr.h
new file mode 100644
index 0000000000..762a0b6d6b
--- /dev/null
+++ b/arch/arm/include/asm/arch-npcm7xx/gcr.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __NPCM750_GCR_H_
+#define __NPCM750_GCR_H_
+
+/* On-Chip POLEG NPCM750 VERSIONS */
+#define POLEG_Z1 0x00A92750
+#define POLEG_A1 0x04A92750
+#define POLEG_NPCM750 0x00000000
+#define POLEG_NPCM730 0x00300395
+#define POLEG_NPCM710 0x00200380
+
+#define PWRON_SECEN 7 /* STRAP8 */
+#define NPCM_GCR_BA 0xF0800000
+
+struct npcm_gcr {
+ unsigned int pdid;
+ unsigned int pwron;
+ unsigned char res1[0x4];
+ unsigned int mfsel1;
+ unsigned int mfsel2;
+ unsigned int miscpe;
+ unsigned char res2[0x20];
+ unsigned int spswc;
+ unsigned int intcr;
+ unsigned int intsr;
+ unsigned char res3[0xc];
+ unsigned int hifcr;
+ unsigned int sd1irv1;
+ unsigned int sd1irv2;
+ unsigned char res4[0x4];
+ unsigned int intcr2;
+ unsigned int mfsel3;
+ unsigned int srcnt;
+ unsigned int ressr;
+ unsigned int rlockr1;
+ unsigned int flockr1;
+ unsigned int dscnt;
+ unsigned int mdlr;
+ unsigned char res5[0x18];
+ unsigned int davclvlr;
+ unsigned int intcr3;
+ unsigned char res6[0xc];
+ unsigned int vsintr;
+ unsigned int mfsel4;
+ unsigned int sd2irv1;
+ unsigned int sd2irv2;
+ unsigned char res7[0x8];
+ unsigned int cpbpntr;
+ unsigned char res8[0x8];
+ unsigned int cpctl;
+ unsigned int cp2bst;
+ unsigned int b2cpnt;
+ unsigned int cppctl;
+ unsigned int i2csegsel;
+ unsigned int i2csegctl;
+ unsigned int vsrcr;
+ unsigned int mlockr;
+ unsigned char res9[0x4c];
+ unsigned int scrpad;
+ unsigned int usb1phyctl;
+ unsigned int usb2phyctl;
+};
+
+#endif
diff --git a/arch/arm/mach-npcm/Kconfig b/arch/arm/mach-npcm/Kconfig
new file mode 100644
index 0000000000..cf5043d6b8
--- /dev/null
+++ b/arch/arm/mach-npcm/Kconfig
@@ -0,0 +1,26 @@
+if ARCH_NPCM
+
+config SYS_ARCH
+ default "arm"
+
+config SYS_TEXT_BASE
+ default 0x8000
+
+choice
+ prompt "Nuvoton SoC select"
+ default ARCH_NPCM7xx
+
+config ARCH_NPCM7xx
+ bool "Support Nuvoton NPCM7xx SoC"
+ select CPU_V7A
+ select OF_CONTROL
+ select DM
+ help
+ General support for NPCM7xx BMC (Poleg).
+ Nuvoton NPCM7xx BMC is based on the Cortex A9.
+
+endchoice
+
+source "arch/arm/mach-npcm/npcm7xx/Kconfig"
+
+endif
diff --git a/arch/arm/mach-npcm/Makefile b/arch/arm/mach-npcm/Makefile
new file mode 100644
index 0000000000..8a1572b4f0
--- /dev/null
+++ b/arch/arm/mach-npcm/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_NPCM7xx) += npcm7xx/
diff --git a/arch/arm/mach-npcm/npcm7xx/Kconfig b/arch/arm/mach-npcm/npcm7xx/Kconfig
new file mode 100644
index 0000000000..237e7ba7e5
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx/Kconfig
@@ -0,0 +1,22 @@
+if ARCH_NPCM7xx
+
+config SYS_CPU
+ default "armv7"
+
+config SYS_SOC
+ default "npcm7xx"
+
+config TARGET_POLEG
+ bool "NPCM POLEG board"
+ help
+ poleg EVB is Nuvoton evaluation board for NPCM750 SoC,
+ supports general functions of Basebase Management
+ Controller(BMC).
+
+config SYS_MEM_TOP_HIDE
+ hex "Reserved TOP memory"
+ default 0x03000000
+
+source "board/nuvoton/poleg_evb/Kconfig"
+
+endif
diff --git a/arch/arm/mach-npcm/npcm7xx/Makefile b/arch/arm/mach-npcm/npcm7xx/Makefile
new file mode 100644
index 0000000000..49f9877bd6
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_TARGET_POLEG) += cpu.o l2_cache_pl310_init.o l2_cache_pl310.o
diff --git a/arch/arm/mach-npcm/npcm7xx/cpu.c b/arch/arm/mach-npcm/npcm7xx/cpu.c
new file mode 100644
index 0000000000..dd74bb9e08
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx/cpu.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <asm/armv7.h>
+#include <asm/io.h>
+#include <asm/arch/gcr.h>
+
+int print_cpuinfo(void)
+{
+ struct npcm_gcr *gcr = (struct npcm_gcr *)NPCM_GCR_BA;
+ unsigned int id, mdlr;
+
+ mdlr = readl(&gcr->mdlr);
+
+ printf("CPU: ");
+
+ switch (mdlr) {
+ case POLEG_NPCM750:
+ printf("NPCM750 ");
+ break;
+ case POLEG_NPCM730:
+ printf("NPCM730 ");
+ break;
+ case POLEG_NPCM710:
+ printf("NPCM710 ");
+ break;
+ default:
+ printf("NPCM7XX ");
+ break;
+ }
+
+ id = readl(&gcr->pdid);
+ switch (id) {
+ case POLEG_Z1:
+ printf("Z1 is no supported! @ ");
+ break;
+ case POLEG_A1:
+ printf("A1 @ ");
+ break;
+ default:
+ printf("Unknown\n");
+ break;
+ }
+
+ return 0;
+}
+
+void s_init(void)
+{
+ /* Invalidate L2 cache in lowlevel_init */
+ v7_outer_cache_inval_all();
+}
+
+void enable_caches(void)
+{
+ dcache_enable();
+}
+
+void disable_caches(void)
+{
+ dcache_disable();
+}
diff --git a/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310.c b/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310.c
new file mode 100644
index 0000000000..cba2e342dc
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/pl310.h>
+
+void l2_pl310_init(void);
+
+void set_pl310_ctrl(u32 enable)
+{
+ struct pl310_regs *const pl310 = (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+ writel(enable, &pl310->pl310_ctrl);
+}
+
+void v7_outer_cache_enable(void)
+{
+ l2_pl310_init();
+
+ set_pl310_ctrl(1);
+}
+
+void v7_outer_cache_disable(void)
+{
+ set_pl310_ctrl(0);
+}
diff --git a/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310_init.S b/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310_init.S
new file mode 100644
index 0000000000..8ec4e374a5
--- /dev/null
+++ b/arch/arm/mach-npcm/npcm7xx/l2_cache_pl310_init.S
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+.align 5
+
+#include <linux/linkage.h>
+
+#ifndef CONFIG_SYS_L2CACHE_OFF
+
+ENTRY(l2_pl310_init)
+
+@------------------------------------------------------------------
+@ L2CC (PL310) Initialization
+@------------------------------------------------------------------
+ @ In this example PL310 PA = VA. The memory was marked as Device memory
+ @ in previous stages when defining CORE0 private address space
+ LDR r0, =0xF03FC000 @ A9_BASE_ADDR
+
+ @ Disable L2 Cache controller just in case it is already on
+ LDR r1, =0x0
+ STR r1, [r0,#0x100]
+
+ @ Set aux cntrl
+ @ Way size = 32KB
+ @ Way = 16
+ LDR r1, =0x02050000
+ ORR r1, r1, #(1 << 29) @ Instruction prefetch enable
+ ORR r1, r1, #(1 << 28) @ Data prefetch enable
+ ORR r1, r1, #(1 << 22) @ cache replacement policy
+ STR r1, [r0,#0x104] @ auxilary control reg at offset 0x104
+
+ @ Set tag RAM latency
+ @ 1 cycle RAM write access latency
+ @ 1 cycle RAM read access latency
+ @ 1 cycle RAM setup latency
+ LDR r1, =0x00000000
+ STR r1, [r0,#0x108] @ tag ram control reg at offset 0x108
+
+ @ Set Data RAM latency
+ @ 1 cycle RAM write access latency
+ @ 2 cycles RAM read access latency
+ @ 1 cycle RAM setup latency
+ LDR r1, =0x00000000
+ STR r1, [r0,#0x10C] @ data ram control reg at offset 0x108
+
+ @Cache maintenance - invalidate 16 ways (0xffff) - base offset 0x77C
+ LDR r1, =0xFFFF
+ STR r1, [r0,#0x77C] @ invalidate by way register at offset 0x77C
+poll_invalidate:
+ LDR r1, [r0,#0x77C] @ invalidate by way register at offset 0x77C
+ TST r1, #1
+ BNE poll_invalidate
+
+ @ Ensure L2 remains disabled for the time being
+ LDR r1, =0x0
+ STR r1, [r0,#0x100]
+
+ MRC p15, 4, r0, c15, c0, 0 @ Read periph base address
+ @ SCU offset from base of private peripheral space = 0x000
+
+ LDR r1, [r0, #0x0] @ Read the SCU Control Register
+ ORR r1, r1, #0x1 @ Set bit 0 (The Enable bit)
+ STR r1, [r0, #0x0] @ Write back modifed value
+
+ BX lr
+
+ENDPROC(l2_pl310_init)
+
+#endif
diff --git a/board/nuvoton/poleg_evb/Kconfig b/board/nuvoton/poleg_evb/Kconfig
new file mode 100644
index 0000000000..d3f4c1dd81
--- /dev/null
+++ b/board/nuvoton/poleg_evb/Kconfig
@@ -0,0 +1,25 @@
+if TARGET_POLEG
+
+config SYS_BOARD
+ default "poleg_evb"
+
+config SYS_VENDOR
+ default "nuvoton"
+
+config SYS_CONFIG_NAME
+ default "poleg"
+
+choice
+ prompt "Target board select"
+ default TARGET_POLEG_EVB
+
+config TARGET_POLEG_EVB
+ bool "Poleg EVB"
+ help
+ poleg EVB is Nuvoton evaluation board for NPCM750 SoC,
+ supports general functions of Basebase Management
+ Controller(BMC).
+
+endchoice
+
+endif
diff --git a/board/nuvoton/poleg_evb/MAINTAINERS b/board/nuvoton/poleg_evb/MAINTAINERS
new file mode 100644
index 0000000000..8797295c41
--- /dev/null
+++ b/board/nuvoton/poleg_evb/MAINTAINERS
@@ -0,0 +1,7 @@
+Poleg EVB
+M: Stanley Chu <yschu@nuvoton.com>
+M: Jim Liu <JJLIU0@nuvoton.com>
+S: Maintained
+F: board/nuvoton/poleg_evb/
+F: include/configs/poleg.h
+F: configs/poleg_evb_defconfig
diff --git a/board/nuvoton/poleg_evb/Makefile b/board/nuvoton/poleg_evb/Makefile
new file mode 100644
index 0000000000..377433d60a
--- /dev/null
+++ b/board/nuvoton/poleg_evb/Makefile
@@ -0,0 +1 @@
+obj-y := poleg_evb.o
diff --git a/board/nuvoton/poleg_evb/poleg_evb.c b/board/nuvoton/poleg_evb/poleg_evb.c
new file mode 100644
index 0000000000..aef142a881
--- /dev/null
+++ b/board/nuvoton/poleg_evb/poleg_evb.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/io.h>
+#include <asm/arch/gcr.h>
+#include <asm/mach-types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+ return 0;
+}
+
+int dram_init(void)
+{
+ struct npcm_gcr *gcr = (struct npcm_gcr *)NPCM_GCR_BA;
+
+ int ramsize = (readl(&gcr->intcr3) >> 8) & 0x7;
+
+ switch (ramsize) {
+ case 0:
+ gd->ram_size = 0x08000000; /* 128 MB. */
+ break;
+ case 1:
+ gd->ram_size = 0x10000000; /* 256 MB. */
+ break;
+ case 2:
+ gd->ram_size = 0x20000000; /* 512 MB. */
+ break;
+ case 3:
+ gd->ram_size = 0x40000000; /* 1024 MB. */
+ break;
+ case 4:
+ gd->ram_size = 0x80000000; /* 2048 MB. */
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
diff --git a/configs/poleg_evb_defconfig b/configs/poleg_evb_defconfig
new file mode 100644
index 0000000000..f7bdefcf93
--- /dev/null
+++ b/configs/poleg_evb_defconfig
@@ -0,0 +1,40 @@
+CONFIG_ARM=y
+CONFIG_ARCH_CPU_INIT=y
+CONFIG_ARCH_NPCM=y
+CONFIG_SYS_TEXT_BASE=0x8200
+CONFIG_SYS_MALLOC_LEN=0x240000
+CONFIG_SYS_MALLOC_F_LEN=0x1000
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_ENV_SIZE=0x40000
+CONFIG_ENV_OFFSET=0x100000
+CONFIG_ENV_SECT_SIZE=0x4000
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="nuvoton-npcm750-evb"
+CONFIG_ARCH_NPCM7xx=y
+CONFIG_TARGET_POLEG=y
+CONFIG_SYS_LOAD_ADDR=0x10000000
+CONFIG_ENV_ADDR=0x80100000
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="run common_bootargs; run romboot"
+CONFIG_SYS_PROMPT="U-Boot>"
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_UUID=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_CLK=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_DM_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_DM_SERIAL=y
+CONFIG_NPCM_SERIAL=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
+CONFIG_TIMER=y
+CONFIG_NPCM_TIMER=y
diff --git a/include/configs/poleg.h b/include/configs/poleg.h
new file mode 100644
index 0000000000..c21b063c05
--- /dev/null
+++ b/include/configs/poleg.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#ifndef __CONFIG_POLEG_H
+#define __CONFIG_POLEG_H
+
+#ifndef CONFIG_SYS_L2CACHE_OFF
+#define CONFIG_SYS_L2_PL310 1
+#define CONFIG_SYS_PL310_BASE 0xF03FC000 /* L2 - Cache Regs Base (4k Space)*/
+#endif
+
+#define CONFIG_SYS_MAXARGS 32
+#define CONFIG_SYS_CBSIZE 256
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_BOOTMAPSZ (0x30 << 20)
+#define CONFIG_SYS_SDRAM_BASE 0x0
+#define CONFIG_SYS_INIT_SP_ADDR (0x00008000 - GENERATED_GBL_DATA_SIZE)
+
+/* Default environemnt variables */
+#define CONFIG_SERVERIP 192.168.0.1
+#define CONFIG_IPADDR 192.168.0.2
+#define CONFIG_NETMASK 255.255.255.0
+#define CONFIG_EXTRA_ENV_SETTINGS "uimage_flash_addr=80200000\0" \
+ "stdin=serial\0" \
+ "stdout=serial\0" \
+ "stderr=serial\0" \
+ "ethact=eth${eth_num}\0" \
+ "romboot=echo Booting from flash; echo +++ uimage at 0x${uimage_flash_addr}; " \
+ "echo Using bootargs: ${bootargs};bootm ${uimage_flash_addr}\0" \
+ "autostart=yes\0" \
+ "eth_num=0\0" \
+ "ethaddr=00:00:F7:A0:00:FC\0" \
+ "eth1addr=00:00:F7:A0:00:FD\0" \
+ "eth2addr=00:00:F7:A0:00:FE\0" \
+ "eth3addr=00:00:F7:A0:00:FF\0" \
+ "common_bootargs=setenv bootargs earlycon=${earlycon} root=/dev/ram " \
+ "console=${console} mem=${mem} ramdisk_size=48000 basemac=${ethaddr}\0" \
+ "sd_prog=fatload mmc 0 10000000 image-bmc; cp.b 10000000 80000000 ${filesize}\0" \
+ "sd_run=fatload mmc 0 10000000 image-bmc; bootm 10200000\0" \
+ "\0"
+
+#endif
diff --git a/include/dt-bindings/reset/nuvoton,npcm7xx-reset.h b/include/dt-bindings/reset/nuvoton,npcm7xx-reset.h
new file mode 100644
index 0000000000..757f5e34c8
--- /dev/null
+++ b/include/dt-bindings/reset/nuvoton,npcm7xx-reset.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (c) 2020 Nuvoton Technology corporation.
+
+#ifndef _DT_BINDINGS_NPCM7XX_RESET_H
+#define _DT_BINDINGS_NPCM7XX_RESET_H
+
+#define NPCM7XX_RESET_IPSRST1 0x20
+#define NPCM7XX_RESET_IPSRST2 0x24
+#define NPCM7XX_RESET_IPSRST3 0x34
+
+/* Reset lines on IP1 reset module (NPCM7XX_RESET_IPSRST1) */
+#define NPCM7XX_RESET_FIU3 1
+#define NPCM7XX_RESET_UDC1 5
+#define NPCM7XX_RESET_EMC1 6
+#define NPCM7XX_RESET_UART_2_3 7
+#define NPCM7XX_RESET_UDC2 8
+#define NPCM7XX_RESET_PECI 9
+#define NPCM7XX_RESET_AES 10
+#define NPCM7XX_RESET_UART_0_1 11
+#define NPCM7XX_RESET_MC 12
+#define NPCM7XX_RESET_SMB2 13
+#define NPCM7XX_RESET_SMB3 14
+#define NPCM7XX_RESET_SMB4 15
+#define NPCM7XX_RESET_SMB5 16
+#define NPCM7XX_RESET_PWM_M0 18
+#define NPCM7XX_RESET_TIMER_0_4 19
+#define NPCM7XX_RESET_TIMER_5_9 20
+#define NPCM7XX_RESET_EMC2 21
+#define NPCM7XX_RESET_UDC4 22
+#define NPCM7XX_RESET_UDC5 23
+#define NPCM7XX_RESET_UDC6 24
+#define NPCM7XX_RESET_UDC3 25
+#define NPCM7XX_RESET_ADC 27
+#define NPCM7XX_RESET_SMB6 28
+#define NPCM7XX_RESET_SMB7 29
+#define NPCM7XX_RESET_SMB0 30
+#define NPCM7XX_RESET_SMB1 31
+
+/* Reset lines on IP2 reset module (NPCM7XX_RESET_IPSRST2) */
+#define NPCM7XX_RESET_MFT0 0
+#define NPCM7XX_RESET_MFT1 1
+#define NPCM7XX_RESET_MFT2 2
+#define NPCM7XX_RESET_MFT3 3
+#define NPCM7XX_RESET_MFT4 4
+#define NPCM7XX_RESET_MFT5 5
+#define NPCM7XX_RESET_MFT6 6
+#define NPCM7XX_RESET_MFT7 7
+#define NPCM7XX_RESET_MMC 8
+#define NPCM7XX_RESET_SDHC 9
+#define NPCM7XX_RESET_GFX_SYS 10
+#define NPCM7XX_RESET_AHB_PCIBRG 11
+#define NPCM7XX_RESET_VDMA 12
+#define NPCM7XX_RESET_ECE 13
+#define NPCM7XX_RESET_VCD 14
+#define NPCM7XX_RESET_OTP 16
+#define NPCM7XX_RESET_SIOX1 18
+#define NPCM7XX_RESET_SIOX2 19
+#define NPCM7XX_RESET_3DES 21
+#define NPCM7XX_RESET_PSPI1 22
+#define NPCM7XX_RESET_PSPI2 23
+#define NPCM7XX_RESET_GMAC2 25
+#define NPCM7XX_RESET_USB_HOST 26
+#define NPCM7XX_RESET_GMAC1 28
+#define NPCM7XX_RESET_CP 31
+
+/* Reset lines on IP3 reset module (NPCM7XX_RESET_IPSRST3) */
+#define NPCM7XX_RESET_PWM_M1 0
+#define NPCM7XX_RESET_SMB12 1
+#define NPCM7XX_RESET_SPIX 2
+#define NPCM7XX_RESET_SMB13 3
+#define NPCM7XX_RESET_UDC0 4
+#define NPCM7XX_RESET_UDC7 5
+#define NPCM7XX_RESET_UDC8 6
+#define NPCM7XX_RESET_UDC9 7
+#define NPCM7XX_RESET_PCI_MAILBOX 9
+#define NPCM7XX_RESET_SMB14 12
+#define NPCM7XX_RESET_SHA 13
+#define NPCM7XX_RESET_SEC_ECC 14
+#define NPCM7XX_RESET_PCIE_RC 15
+#define NPCM7XX_RESET_TIMER_10_14 16
+#define NPCM7XX_RESET_RNG 17
+#define NPCM7XX_RESET_SMB15 18
+#define NPCM7XX_RESET_SMB8 19
+#define NPCM7XX_RESET_SMB9 20
+#define NPCM7XX_RESET_SMB10 21
+#define NPCM7XX_RESET_SMB11 22
+#define NPCM7XX_RESET_ESPI 23
+#define NPCM7XX_RESET_USB_PHY_1 24
+#define NPCM7XX_RESET_USB_PHY_2 25
+
+#endif
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v3 1/4] arm: nuvoton: Add support for Nuvoton NPCM750 BMC
2022-04-19 5:32 ` [PATCH v3 1/4] arm: nuvoton: Add support for Nuvoton NPCM750 BMC Jim Liu
@ 2022-05-05 18:51 ` Tom Rini
0 siblings, 0 replies; 10+ messages in thread
From: Tom Rini @ 2022-05-05 18:51 UTC (permalink / raw)
To: Jim Liu; +Cc: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, u-boot
[-- Attachment #1: Type: text/plain, Size: 218 bytes --]
On Tue, Apr 19, 2022 at 01:32:19PM +0800, Jim Liu wrote:
> Add basic support for the Nuvoton NPCM750 EVB (Poleg).
>
> Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Applied to u-boot/master, thanks!
--
Tom
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 659 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750
2022-04-19 5:32 [PATCH v3 0/4] Add Nuvoton NPCM750 support Jim Liu
2022-04-19 5:32 ` [PATCH v3 1/4] arm: nuvoton: Add support for Nuvoton NPCM750 BMC Jim Liu
@ 2022-04-19 5:32 ` Jim Liu
2022-04-22 0:36 ` Sean Anderson
2022-05-05 18:52 ` Tom Rini
2022-04-19 5:32 ` [PATCH v3 3/4] serial: npcm: Add support for Nuvoton NPCM SoCs Jim Liu
2022-04-19 5:32 ` [PATCH v3 4/4] timer: npcm: Add NPCM timer support Jim Liu
3 siblings, 2 replies; 10+ messages in thread
From: Jim Liu @ 2022-04-19 5:32 UTC (permalink / raw)
To: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, trini; +Cc: u-boot, Stanley Chu
Add clock controller driver for NPCM750
Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
---
Changes for v3:
- no changes since v2
Changes for v2:
- combine NPCM750 and NPCM845 clk driver.
---
drivers/clk/Makefile | 1 +
drivers/clk/nuvoton/Makefile | 2 +
drivers/clk/nuvoton/clk_npcm.c | 299 ++++++++++++++++++
drivers/clk/nuvoton/clk_npcm.h | 105 ++++++
drivers/clk/nuvoton/clk_npcm7xx.c | 95 ++++++
.../dt-bindings/clock/nuvoton,npcm7xx-clock.h | 46 +++
6 files changed, 548 insertions(+)
create mode 100644 drivers/clk/nuvoton/Makefile
create mode 100644 drivers/clk/nuvoton/clk_npcm.c
create mode 100644 drivers/clk/nuvoton/clk_npcm.h
create mode 100644 drivers/clk/nuvoton/clk_npcm7xx.c
create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index bb4eee5d99..f5b553172c 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_ARCH_ASPEED) += aspeed/
obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/
obj-$(CONFIG_ARCH_MESON) += meson/
obj-$(CONFIG_ARCH_MTMIPS) += mtmips/
+obj-$(CONFIG_ARCH_NPCM) += nuvoton/
obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
obj-$(CONFIG_ARCH_SOCFPGA) += altera/
obj-$(CONFIG_ARCH_SUNXI) += sunxi/
diff --git a/drivers/clk/nuvoton/Makefile b/drivers/clk/nuvoton/Makefile
new file mode 100644
index 0000000000..c63d9c16f1
--- /dev/null
+++ b/drivers/clk/nuvoton/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_ARCH_NPCM) += clk_npcm.o
+obj-$(CONFIG_ARCH_NPCM7xx) += clk_npcm7xx.o
diff --git a/drivers/clk/nuvoton/clk_npcm.c b/drivers/clk/nuvoton/clk_npcm.c
new file mode 100644
index 0000000000..8d71f2a24b
--- /dev/null
+++ b/drivers/clk/nuvoton/clk_npcm.c
@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2022 Nuvoton Technology Corp.
+ *
+ * Formula for calculating clock rate:
+ * Fout = ((Fin / PRE_DIV) / div) / POST_DIV
+ */
+
+#include <div64.h>
+#include <dm.h>
+#include <asm/io.h>
+#include <linux/bitfield.h>
+#include <linux/log2.h>
+#include "clk_npcm.h"
+
+static int clkid_to_clksel(struct npcm_clk_select *selector, int id)
+{
+ int i;
+
+ for (i = 0; i < selector->num_parents; i++) {
+ if (selector->parents[i].id == id)
+ return selector->parents[i].clksel;
+ }
+
+ return -EINVAL;
+}
+
+static int clksel_to_clkid(struct npcm_clk_select *selector, int clksel)
+{
+ int i;
+
+ for (i = 0; i < selector->num_parents; i++) {
+ if (selector->parents[i].clksel == clksel)
+ return selector->parents[i].id;
+ }
+
+ return -EINVAL;
+}
+
+static struct npcm_clk_pll *npcm_clk_pll_get(struct npcm_clk_data *clk_data, int id)
+{
+ struct npcm_clk_pll *pll = clk_data->clk_plls;
+ int i;
+
+ for (i = 0; i < clk_data->num_plls; i++) {
+ if (pll->id == id)
+ return pll;
+ pll++;
+ }
+
+ return NULL;
+}
+
+static struct npcm_clk_select *npcm_clk_selector_get(struct npcm_clk_data *clk_data,
+ int id)
+{
+ struct npcm_clk_select *selector = clk_data->clk_selectors;
+ int i;
+
+ for (i = 0; i < clk_data->num_selectors; i++) {
+ if (selector->id == id)
+ return selector;
+ selector++;
+ }
+
+ return NULL;
+}
+
+static struct npcm_clk_div *npcm_clk_divider_get(struct npcm_clk_data *clk_data,
+ int id)
+{
+ struct npcm_clk_div *divider = clk_data->clk_dividers;
+ int i;
+
+ for (i = 0; i < clk_data->num_dividers; i++) {
+ if (divider->id == id)
+ return divider;
+ divider++;
+ }
+
+ return NULL;
+}
+
+static ulong npcm_clk_get_fin(struct clk *clk)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_select *selector;
+ struct clk parent;
+ ulong parent_rate;
+ u32 val, clksel;
+ int ret;
+
+ selector = npcm_clk_selector_get(priv->clk_data, clk->id);
+ if (!selector)
+ return 0;
+
+ if (selector->flags & FIXED_PARENT) {
+ clksel = 0;
+ } else {
+ val = readl(priv->base + selector->reg);
+ clksel = (val & selector->mask) >> (ffs(selector->mask) - 1);
+ }
+ parent.id = clksel_to_clkid(selector, clksel);
+
+ ret = clk_request(clk->dev, &parent);
+ if (ret)
+ return 0;
+
+ parent_rate = clk_get_rate(&parent);
+
+ debug("fin of clk%lu = %lu\n", clk->id, parent_rate);
+ return parent_rate;
+}
+
+static u32 npcm_clk_get_div(struct clk *clk)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_div *divider;
+ u32 val, div;
+
+ divider = npcm_clk_divider_get(priv->clk_data, clk->id);
+ if (!divider)
+ return 0;
+
+ val = readl(priv->base + divider->reg);
+ div = (val & divider->mask) >> (ffs(divider->mask) - 1);
+ if (divider->flags & DIV_TYPE1)
+ div = div + 1;
+ else
+ div = 1 << div;
+
+ if (divider->flags & PRE_DIV2)
+ div = div << 1;
+
+ return div;
+}
+
+static u32 npcm_clk_set_div(struct clk *clk, u32 div)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_div *divider;
+ u32 val, clkdiv;
+
+ divider = npcm_clk_divider_get(priv->clk_data, clk->id);
+ if (!divider)
+ return -EINVAL;
+
+ if (divider->flags & PRE_DIV2)
+ div = div >> 1;
+
+ if (divider->flags & DIV_TYPE1)
+ clkdiv = div - 1;
+ else
+ clkdiv = ilog2(div);
+
+ val = readl(priv->base + divider->reg);
+ val &= ~divider->mask;
+ val |= (clkdiv << (ffs(divider->mask) - 1)) & divider->mask;
+ writel(val, priv->base + divider->reg);
+
+ return 0;
+}
+
+static ulong npcm_clk_get_fout(struct clk *clk)
+{
+ ulong parent_rate;
+ u32 div;
+
+ parent_rate = npcm_clk_get_fin(clk);
+ if (!parent_rate)
+ return -EINVAL;
+
+ div = npcm_clk_get_div(clk);
+ if (!div)
+ return -EINVAL;
+
+ debug("fout of clk%lu = (%lu / %u)\n", clk->id, parent_rate, div);
+ return (parent_rate / div);
+}
+
+static ulong npcm_clk_get_pll_fout(struct clk *clk)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_pll *pll;
+ struct clk parent;
+ ulong parent_rate;
+ ulong fbdv, indv, otdv1, otdv2;
+ u32 val;
+ u64 ret;
+
+ pll = npcm_clk_pll_get(priv->clk_data, clk->id);
+ if (!pll)
+ return -ENODEV;
+
+ parent.id = pll->parent_id;
+ ret = clk_request(clk->dev, &parent);
+ if (ret)
+ return ret;
+
+ parent_rate = clk_get_rate(&parent);
+
+ val = readl(priv->base + pll->reg);
+ indv = FIELD_GET(PLLCON_INDV, val);
+ fbdv = FIELD_GET(PLLCON_FBDV, val);
+ otdv1 = FIELD_GET(PLLCON_OTDV1, val);
+ otdv2 = FIELD_GET(PLLCON_OTDV2, val);
+
+ ret = (u64)parent_rate * fbdv;
+ do_div(ret, indv * otdv1 * otdv2);
+ if (pll->flags & POST_DIV2)
+ do_div(ret, 2);
+
+ debug("fout of pll(id %lu) = %llu\n", clk->id, ret);
+ return ret;
+}
+
+static ulong npcm_clk_get_rate(struct clk *clk)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_data *clk_data = priv->clk_data;
+ struct clk refclk;
+ int ret;
+
+ debug("%s: id %lu\n", __func__, clk->id);
+ if (clk->id == clk_data->refclk_id) {
+ ret = clk_get_by_name(clk->dev, "refclk", &refclk);
+ if (!ret)
+ return clk_get_rate(&refclk);
+ else
+ return ret;
+ }
+
+ if (clk->id >= clk_data->pll0_id &&
+ clk->id < clk_data->pll0_id + clk_data->num_plls)
+ return npcm_clk_get_pll_fout(clk);
+ else
+ return npcm_clk_get_fout(clk);
+}
+
+static ulong npcm_clk_set_rate(struct clk *clk, ulong rate)
+{
+ ulong parent_rate;
+ u32 div;
+ int ret;
+
+ debug("%s: id %lu, rate %lu\n", __func__, clk->id, rate);
+ parent_rate = npcm_clk_get_fin(clk);
+ if (!parent_rate)
+ return -EINVAL;
+
+ div = DIV_ROUND_UP(parent_rate, rate);
+ ret = npcm_clk_set_div(clk, div);
+ if (ret)
+ return ret;
+
+ debug("%s: rate %lu, new rate (%lu / %u)\n", __func__, rate, parent_rate, div);
+ return (parent_rate / div);
+}
+
+static int npcm_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+ struct npcm_clk_select *selector;
+ int clksel;
+ u32 val;
+
+ debug("%s: id %lu, parent %lu\n", __func__, clk->id, parent->id);
+ selector = npcm_clk_selector_get(priv->clk_data, clk->id);
+ if (!selector)
+ return -EINVAL;
+
+ clksel = clkid_to_clksel(selector, parent->id);
+ if (clksel < 0)
+ return -EINVAL;
+
+ val = readl(priv->base + selector->reg);
+ val &= ~selector->mask;
+ val |= clksel << (ffs(selector->mask) - 1);
+ writel(val, priv->base + selector->reg);
+
+ return 0;
+}
+
+static int npcm_clk_request(struct clk *clk)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ if (clk->id >= priv->num_clks)
+ return -EINVAL;
+
+ return 0;
+}
+
+const struct clk_ops npcm_clk_ops = {
+ .get_rate = npcm_clk_get_rate,
+ .set_rate = npcm_clk_set_rate,
+ .set_parent = npcm_clk_set_parent,
+ .request = npcm_clk_request,
+};
diff --git a/drivers/clk/nuvoton/clk_npcm.h b/drivers/clk/nuvoton/clk_npcm.h
new file mode 100644
index 0000000000..06b60dc8b8
--- /dev/null
+++ b/drivers/clk/nuvoton/clk_npcm.h
@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _CLK_NPCM_H_
+#define _CLK_NPCM_H_
+
+#include <clk-uclass.h>
+
+/* Register offsets */
+#define CLKSEL 0x04 /* clock source selection */
+#define CLKDIV1 0x08 /* clock divider 1 */
+#define CLKDIV2 0x2C /* clock divider 2 */
+#define CLKDIV3 0x58 /* clock divider 3 */
+#define PLLCON0 0x0C /* pll0 control */
+#define PLLCON1 0x10 /* pll1 control */
+#define PLLCON2 0x54 /* pll2 control */
+
+/* CLKSEL bit filed */
+#define NPCM7XX_CPUCKSEL GENMASK(1, 0)
+#define NPCM8XX_CPUCKSEL GENMASK(2, 0)
+#define SDCKSEL GENMASK(7, 6)
+#define UARTCKSEL GENMASK(9, 8)
+#define TIMCKSEL GENMASK(15, 14)
+
+/* CLKDIV1 bit filed */
+#define SPI3CKDIV GENMASK(10, 6)
+#define MMCCKDIV GENMASK(15, 11)
+#define UARTDIV1 GENMASK(20, 16)
+#define TIMCKDIV GENMASK(25, 21)
+#define CLK4DIV GENMASK(27, 26)
+
+/* CLKDIV2 bit filed */
+#define APB5CKDIV GENMASK(23, 22)
+#define APB2CKDIV GENMASK(27, 26)
+
+/* CLKDIV3 bit filed */
+#define SPIXCKDIV GENMASK(5, 1)
+#define SPI0CKDIV GENMASK(10, 6)
+#define UARTDIV2 GENMASK(15, 11)
+#define SPI1CKDIV GENMASK(23, 16)
+
+/* PLLCON bit filed */
+#define PLLCON_INDV GENMASK(5, 0)
+#define PLLCON_OTDV1 GENMASK(10, 8)
+#define PLLCON_OTDV2 GENMASK(15, 13)
+#define PLLCON_FBDV GENMASK(27, 16)
+
+/* Flags */
+#define DIV_TYPE1 BIT(0) /* div = clkdiv + 1 */
+#define DIV_TYPE2 BIT(1) /* div = 1 << clkdiv */
+#define PRE_DIV2 BIT(2) /* Pre divisor = 2 */
+#define POST_DIV2 BIT(3) /* Post divisor = 2 */
+#define FIXED_PARENT BIT(4) /* clock source is fixed */
+
+/* Parameters of PLL configuration */
+struct npcm_clk_pll {
+ const int id;
+ const int parent_id;
+ u32 reg;
+ u32 flags;
+};
+
+/* Parent clock id to clksel mapping */
+struct parent_data {
+ int id;
+ int clksel;
+};
+
+/* Parameters of parent selection */
+struct npcm_clk_select {
+ const int id;
+ const struct parent_data *parents;
+ u32 reg;
+ u32 mask;
+ u8 num_parents;
+ u32 flags;
+};
+
+/* Parameters of clock divider */
+struct npcm_clk_div {
+ const int id;
+ u32 reg;
+ u32 mask;
+ u32 flags;
+};
+
+struct npcm_clk_data {
+ struct npcm_clk_pll *clk_plls;
+ int num_plls;
+ struct npcm_clk_select *clk_selectors;
+ int num_selectors;
+ struct npcm_clk_div *clk_dividers;
+ int num_dividers;
+ int refclk_id;
+ int pll0_id;
+};
+
+struct npcm_clk_priv {
+ void __iomem *base;
+ struct npcm_clk_data *clk_data;
+ int num_clks;
+};
+
+extern const struct clk_ops npcm_clk_ops;
+
+#endif
diff --git a/drivers/clk/nuvoton/clk_npcm7xx.c b/drivers/clk/nuvoton/clk_npcm7xx.c
new file mode 100644
index 0000000000..a12aaa2f4c
--- /dev/null
+++ b/drivers/clk/nuvoton/clk_npcm7xx.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#include <dm.h>
+#include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
+#include "clk_npcm.h"
+
+/* Parent clock map */
+static const struct parent_data pll_parents[] = {
+ {NPCM7XX_CLK_PLL0, 0},
+ {NPCM7XX_CLK_PLL1, 1},
+ {NPCM7XX_CLK_REFCLK, 2},
+ {NPCM7XX_CLK_PLL2DIV2, 3}
+};
+
+static const struct parent_data cpuck_parents[] = {
+ {NPCM7XX_CLK_PLL0, 0},
+ {NPCM7XX_CLK_PLL1, 1},
+ {NPCM7XX_CLK_REFCLK, 2},
+};
+
+static const struct parent_data apb_parent[] = {{NPCM7XX_CLK_AHB, 0}};
+
+static struct npcm_clk_pll npcm7xx_clk_plls[] = {
+ {NPCM7XX_CLK_PLL0, NPCM7XX_CLK_REFCLK, PLLCON0, 0},
+ {NPCM7XX_CLK_PLL1, NPCM7XX_CLK_REFCLK, PLLCON1, 0},
+ {NPCM7XX_CLK_PLL2, NPCM7XX_CLK_REFCLK, PLLCON2, 0},
+ {NPCM7XX_CLK_PLL2DIV2, NPCM7XX_CLK_REFCLK, PLLCON2, POST_DIV2}
+};
+
+static struct npcm_clk_select npcm7xx_clk_selectors[] = {
+ {NPCM7XX_CLK_AHB, cpuck_parents, CLKSEL, NPCM7XX_CPUCKSEL, 3, 0},
+ {NPCM7XX_CLK_APB2, apb_parent, 0, 0, 1, FIXED_PARENT},
+ {NPCM7XX_CLK_APB5, apb_parent, 0, 0, 1, FIXED_PARENT},
+ {NPCM7XX_CLK_SPI0, apb_parent, 0, 0, 1, FIXED_PARENT},
+ {NPCM7XX_CLK_SPI3, apb_parent, 0, 0, 1, FIXED_PARENT},
+ {NPCM7XX_CLK_SPIX, apb_parent, 0, 0, 1, FIXED_PARENT},
+ {NPCM7XX_CLK_UART, pll_parents, CLKSEL, UARTCKSEL, 4, 0},
+ {NPCM7XX_CLK_TIMER, pll_parents, CLKSEL, TIMCKSEL, 4, 0},
+ {NPCM7XX_CLK_SDHC, pll_parents, CLKSEL, SDCKSEL, 4, 0}
+};
+
+static struct npcm_clk_div npcm7xx_clk_dividers[] = {
+ {NPCM7XX_CLK_AHB, CLKDIV1, CLK4DIV, DIV_TYPE1 | PRE_DIV2},
+ {NPCM7XX_CLK_APB2, CLKDIV2, APB2CKDIV, DIV_TYPE2},
+ {NPCM7XX_CLK_APB5, CLKDIV2, APB5CKDIV, DIV_TYPE2},
+ {NPCM7XX_CLK_SPI0, CLKDIV3, SPI0CKDIV, DIV_TYPE1},
+ {NPCM7XX_CLK_SPI3, CLKDIV1, SPI3CKDIV, DIV_TYPE1},
+ {NPCM7XX_CLK_SPIX, CLKDIV3, SPIXCKDIV, DIV_TYPE1},
+ {NPCM7XX_CLK_UART, CLKDIV1, UARTDIV1, DIV_TYPE1},
+ {NPCM7XX_CLK_TIMER, CLKDIV1, TIMCKDIV, DIV_TYPE2},
+ {NPCM7XX_CLK_SDHC, CLKDIV1, MMCCKDIV, DIV_TYPE1}
+};
+
+static struct npcm_clk_data npcm7xx_clk_data = {
+ .clk_plls = npcm7xx_clk_plls,
+ .num_plls = ARRAY_SIZE(npcm7xx_clk_plls),
+ .clk_selectors = npcm7xx_clk_selectors,
+ .num_selectors = ARRAY_SIZE(npcm7xx_clk_selectors),
+ .clk_dividers = npcm7xx_clk_dividers,
+ .num_dividers = ARRAY_SIZE(npcm7xx_clk_dividers),
+ .refclk_id = NPCM7XX_CLK_REFCLK,
+ .pll0_id = NPCM7XX_CLK_PLL0,
+};
+
+static int npcm7xx_clk_probe(struct udevice *dev)
+{
+ struct npcm_clk_priv *priv = dev_get_priv(dev);
+
+ priv->base = dev_read_addr_ptr(dev);
+ if (!priv->base)
+ return -EINVAL;
+
+ priv->clk_data = &npcm7xx_clk_data;
+ priv->num_clks = NPCM7XX_NUM_CLOCKS;
+
+ return 0;
+}
+
+static const struct udevice_id npcm7xx_clk_ids[] = {
+ { .compatible = "nuvoton,npcm750-clk" },
+ { }
+};
+
+U_BOOT_DRIVER(clk_npcm) = {
+ .name = "clk_npcm",
+ .id = UCLASS_CLK,
+ .of_match = npcm7xx_clk_ids,
+ .ops = &npcm_clk_ops,
+ .priv_auto = sizeof(struct npcm_clk_priv),
+ .probe = npcm7xx_clk_probe,
+ .flags = DM_FLAG_PRE_RELOC,
+};
diff --git a/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h b/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
new file mode 100644
index 0000000000..65e6bc4eee
--- /dev/null
+++ b/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Nuvoton NPCM7xx Clock Generator binding
+ * clock binding number for all clocks supportted by nuvoton,npcm7xx-clk
+ *
+ * Copyright (C) 2018 Nuvoton Technologies tali.perry@nuvoton.com
+ *
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_NPCM7XX_H
+#define __DT_BINDINGS_CLOCK_NPCM7XX_H
+
+#define NPCM7XX_CLK_CPU 0
+#define NPCM7XX_CLK_GFX_PIXEL 1
+#define NPCM7XX_CLK_MC 2
+#define NPCM7XX_CLK_ADC 3
+#define NPCM7XX_CLK_AHB 4
+#define NPCM7XX_CLK_TIMER 5
+#define NPCM7XX_CLK_UART 6
+#define NPCM7XX_CLK_MMC 7
+#define NPCM7XX_CLK_SPI3 8
+#define NPCM7XX_CLK_PCI 9
+#define NPCM7XX_CLK_AXI 10
+#define NPCM7XX_CLK_APB4 11
+#define NPCM7XX_CLK_APB3 12
+#define NPCM7XX_CLK_APB2 13
+#define NPCM7XX_CLK_APB1 14
+#define NPCM7XX_CLK_APB5 15
+#define NPCM7XX_CLK_CLKOUT 16
+#define NPCM7XX_CLK_GFX 17
+#define NPCM7XX_CLK_SU 18
+#define NPCM7XX_CLK_SU48 19
+#define NPCM7XX_CLK_SDHC 20
+#define NPCM7XX_CLK_SPI0 21
+#define NPCM7XX_CLK_SPIX 22
+#define NPCM7XX_CLK_REFCLK 23
+#define NPCM7XX_CLK_SYSBYPCK 24
+#define NPCM7XX_CLK_MCBYPCK 25
+#define NPCM7XX_CLK_PLL0 26
+#define NPCM7XX_CLK_PLL1 27
+#define NPCM7XX_CLK_PLL2 28
+#define NPCM7XX_CLK_PLL2DIV2 29
+#define NPCM7XX_NUM_CLOCKS (NPCM7XX_CLK_PLL2DIV2 + 1)
+
+#endif
+
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750
2022-04-19 5:32 ` [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750 Jim Liu
@ 2022-04-22 0:36 ` Sean Anderson
2022-05-05 18:52 ` Tom Rini
1 sibling, 0 replies; 10+ messages in thread
From: Sean Anderson @ 2022-04-22 0:36 UTC (permalink / raw)
To: Jim Liu, JJLIU0, KWLIU, YSCHU, lukma, sjg, sr, trini; +Cc: u-boot
On 4/19/22 1:32 AM, Jim Liu wrote:
> Add clock controller driver for NPCM750
>
> Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
> Signed-off-by: Stanley Chu <yschu@nuvoton.com>
> ---
> Changes for v3:
> - no changes since v2
> Changes for v2:
> - combine NPCM750 and NPCM845 clk driver.
> ---
> drivers/clk/Makefile | 1 +
> drivers/clk/nuvoton/Makefile | 2 +
> drivers/clk/nuvoton/clk_npcm.c | 299 ++++++++++++++++++
> drivers/clk/nuvoton/clk_npcm.h | 105 ++++++
> drivers/clk/nuvoton/clk_npcm7xx.c | 95 ++++++
> .../dt-bindings/clock/nuvoton,npcm7xx-clock.h | 46 +++
> 6 files changed, 548 insertions(+)
> create mode 100644 drivers/clk/nuvoton/Makefile
> create mode 100644 drivers/clk/nuvoton/clk_npcm.c
> create mode 100644 drivers/clk/nuvoton/clk_npcm.h
> create mode 100644 drivers/clk/nuvoton/clk_npcm7xx.c
> create mode 100644 include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
>
> diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
> index bb4eee5d99..f5b553172c 100644
> --- a/drivers/clk/Makefile
> +++ b/drivers/clk/Makefile
> @@ -20,6 +20,7 @@ obj-$(CONFIG_ARCH_ASPEED) += aspeed/
> obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/
> obj-$(CONFIG_ARCH_MESON) += meson/
> obj-$(CONFIG_ARCH_MTMIPS) += mtmips/
> +obj-$(CONFIG_ARCH_NPCM) += nuvoton/
> obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
> obj-$(CONFIG_ARCH_SOCFPGA) += altera/
> obj-$(CONFIG_ARCH_SUNXI) += sunxi/
> diff --git a/drivers/clk/nuvoton/Makefile b/drivers/clk/nuvoton/Makefile
> new file mode 100644
> index 0000000000..c63d9c16f1
> --- /dev/null
> +++ b/drivers/clk/nuvoton/Makefile
> @@ -0,0 +1,2 @@
> +obj-$(CONFIG_ARCH_NPCM) += clk_npcm.o
> +obj-$(CONFIG_ARCH_NPCM7xx) += clk_npcm7xx.o
> diff --git a/drivers/clk/nuvoton/clk_npcm.c b/drivers/clk/nuvoton/clk_npcm.c
> new file mode 100644
> index 0000000000..8d71f2a24b
> --- /dev/null
> +++ b/drivers/clk/nuvoton/clk_npcm.c
> @@ -0,0 +1,299 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2022 Nuvoton Technology Corp.
> + *
> + * Formula for calculating clock rate:
> + * Fout = ((Fin / PRE_DIV) / div) / POST_DIV
> + */
> +
> +#include <div64.h>
> +#include <dm.h>
> +#include <asm/io.h>
> +#include <linux/bitfield.h>
> +#include <linux/log2.h>
> +#include "clk_npcm.h"
> +
> +static int clkid_to_clksel(struct npcm_clk_select *selector, int id)
> +{
> + int i;
> +
> + for (i = 0; i < selector->num_parents; i++) {
> + if (selector->parents[i].id == id)
> + return selector->parents[i].clksel;
> + }
> +
> + return -EINVAL;
> +}
> +
> +static int clksel_to_clkid(struct npcm_clk_select *selector, int clksel)
> +{
> + int i;
> +
> + for (i = 0; i < selector->num_parents; i++) {
> + if (selector->parents[i].clksel == clksel)
> + return selector->parents[i].id;
> + }
> +
> + return -EINVAL;
> +}
> +
> +static struct npcm_clk_pll *npcm_clk_pll_get(struct npcm_clk_data *clk_data, int id)
> +{
> + struct npcm_clk_pll *pll = clk_data->clk_plls;
> + int i;
> +
> + for (i = 0; i < clk_data->num_plls; i++) {
> + if (pll->id == id)
> + return pll;
> + pll++;
> + }
> +
> + return NULL;
> +}
> +
> +static struct npcm_clk_select *npcm_clk_selector_get(struct npcm_clk_data *clk_data,
> + int id)
> +{
> + struct npcm_clk_select *selector = clk_data->clk_selectors;
> + int i;
> +
> + for (i = 0; i < clk_data->num_selectors; i++) {
> + if (selector->id == id)
> + return selector;
> + selector++;
> + }
> +
> + return NULL;
> +}
> +
> +static struct npcm_clk_div *npcm_clk_divider_get(struct npcm_clk_data *clk_data,
> + int id)
> +{
> + struct npcm_clk_div *divider = clk_data->clk_dividers;
> + int i;
> +
> + for (i = 0; i < clk_data->num_dividers; i++) {
> + if (divider->id == id)
> + return divider;
> + divider++;
> + }
> +
> + return NULL;
> +}
> +
> +static ulong npcm_clk_get_fin(struct clk *clk)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_select *selector;
> + struct clk parent;
> + ulong parent_rate;
> + u32 val, clksel;
> + int ret;
> +
> + selector = npcm_clk_selector_get(priv->clk_data, clk->id);
> + if (!selector)
> + return 0;
> +
> + if (selector->flags & FIXED_PARENT) {
> + clksel = 0;
> + } else {
> + val = readl(priv->base + selector->reg);
> + clksel = (val & selector->mask) >> (ffs(selector->mask) - 1);
> + }
> + parent.id = clksel_to_clkid(selector, clksel);
> +
> + ret = clk_request(clk->dev, &parent);
> + if (ret)
> + return 0;
> +
> + parent_rate = clk_get_rate(&parent);
> +
> + debug("fin of clk%lu = %lu\n", clk->id, parent_rate);
> + return parent_rate;
> +}
> +
> +static u32 npcm_clk_get_div(struct clk *clk)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_div *divider;
> + u32 val, div;
> +
> + divider = npcm_clk_divider_get(priv->clk_data, clk->id);
> + if (!divider)
> + return 0;
> +
> + val = readl(priv->base + divider->reg);
> + div = (val & divider->mask) >> (ffs(divider->mask) - 1);
> + if (divider->flags & DIV_TYPE1)
> + div = div + 1;
> + else
> + div = 1 << div;
> +
> + if (divider->flags & PRE_DIV2)
> + div = div << 1;
> +
> + return div;
> +}
> +
> +static u32 npcm_clk_set_div(struct clk *clk, u32 div)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_div *divider;
> + u32 val, clkdiv;
> +
> + divider = npcm_clk_divider_get(priv->clk_data, clk->id);
> + if (!divider)
> + return -EINVAL;
> +
> + if (divider->flags & PRE_DIV2)
> + div = div >> 1;
> +
> + if (divider->flags & DIV_TYPE1)
> + clkdiv = div - 1;
> + else
> + clkdiv = ilog2(div);
> +
> + val = readl(priv->base + divider->reg);
> + val &= ~divider->mask;
> + val |= (clkdiv << (ffs(divider->mask) - 1)) & divider->mask;
> + writel(val, priv->base + divider->reg);
> +
> + return 0;
> +}
> +
> +static ulong npcm_clk_get_fout(struct clk *clk)
> +{
> + ulong parent_rate;
> + u32 div;
> +
> + parent_rate = npcm_clk_get_fin(clk);
> + if (!parent_rate)
> + return -EINVAL;
> +
> + div = npcm_clk_get_div(clk);
> + if (!div)
> + return -EINVAL;
> +
> + debug("fout of clk%lu = (%lu / %u)\n", clk->id, parent_rate, div);
> + return (parent_rate / div);
> +}
> +
> +static ulong npcm_clk_get_pll_fout(struct clk *clk)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_pll *pll;
> + struct clk parent;
> + ulong parent_rate;
> + ulong fbdv, indv, otdv1, otdv2;
> + u32 val;
> + u64 ret;
> +
> + pll = npcm_clk_pll_get(priv->clk_data, clk->id);
> + if (!pll)
> + return -ENODEV;
> +
> + parent.id = pll->parent_id;
> + ret = clk_request(clk->dev, &parent);
> + if (ret)
> + return ret;
> +
> + parent_rate = clk_get_rate(&parent);
> +
> + val = readl(priv->base + pll->reg);
> + indv = FIELD_GET(PLLCON_INDV, val);
> + fbdv = FIELD_GET(PLLCON_FBDV, val);
> + otdv1 = FIELD_GET(PLLCON_OTDV1, val);
> + otdv2 = FIELD_GET(PLLCON_OTDV2, val);
> +
> + ret = (u64)parent_rate * fbdv;
> + do_div(ret, indv * otdv1 * otdv2);
> + if (pll->flags & POST_DIV2)
> + do_div(ret, 2);
> +
> + debug("fout of pll(id %lu) = %llu\n", clk->id, ret);
> + return ret;
> +}
> +
> +static ulong npcm_clk_get_rate(struct clk *clk)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_data *clk_data = priv->clk_data;
> + struct clk refclk;
> + int ret;
> +
> + debug("%s: id %lu\n", __func__, clk->id);
> + if (clk->id == clk_data->refclk_id) {
> + ret = clk_get_by_name(clk->dev, "refclk", &refclk);
> + if (!ret)
> + return clk_get_rate(&refclk);
> + else
> + return ret;
> + }
> +
> + if (clk->id >= clk_data->pll0_id &&
> + clk->id < clk_data->pll0_id + clk_data->num_plls)
> + return npcm_clk_get_pll_fout(clk);
> + else
> + return npcm_clk_get_fout(clk);
> +}
> +
> +static ulong npcm_clk_set_rate(struct clk *clk, ulong rate)
> +{
> + ulong parent_rate;
> + u32 div;
> + int ret;
> +
> + debug("%s: id %lu, rate %lu\n", __func__, clk->id, rate);
> + parent_rate = npcm_clk_get_fin(clk);
> + if (!parent_rate)
> + return -EINVAL;
> +
> + div = DIV_ROUND_UP(parent_rate, rate);
> + ret = npcm_clk_set_div(clk, div);
> + if (ret)
> + return ret;
> +
> + debug("%s: rate %lu, new rate (%lu / %u)\n", __func__, rate, parent_rate, div);
> + return (parent_rate / div);
> +}
> +
> +static int npcm_clk_set_parent(struct clk *clk, struct clk *parent)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> + struct npcm_clk_select *selector;
> + int clksel;
> + u32 val;
> +
> + debug("%s: id %lu, parent %lu\n", __func__, clk->id, parent->id);
> + selector = npcm_clk_selector_get(priv->clk_data, clk->id);
> + if (!selector)
> + return -EINVAL;
> +
> + clksel = clkid_to_clksel(selector, parent->id);
> + if (clksel < 0)
> + return -EINVAL;
> +
> + val = readl(priv->base + selector->reg);
> + val &= ~selector->mask;
> + val |= clksel << (ffs(selector->mask) - 1);
> + writel(val, priv->base + selector->reg);
> +
> + return 0;
> +}
> +
> +static int npcm_clk_request(struct clk *clk)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(clk->dev);
> +
> + if (clk->id >= priv->num_clks)
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +const struct clk_ops npcm_clk_ops = {
> + .get_rate = npcm_clk_get_rate,
> + .set_rate = npcm_clk_set_rate,
> + .set_parent = npcm_clk_set_parent,
> + .request = npcm_clk_request,
> +};
> diff --git a/drivers/clk/nuvoton/clk_npcm.h b/drivers/clk/nuvoton/clk_npcm.h
> new file mode 100644
> index 0000000000..06b60dc8b8
> --- /dev/null
> +++ b/drivers/clk/nuvoton/clk_npcm.h
> @@ -0,0 +1,105 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +
> +#ifndef _CLK_NPCM_H_
> +#define _CLK_NPCM_H_
> +
> +#include <clk-uclass.h>
> +
> +/* Register offsets */
> +#define CLKSEL 0x04 /* clock source selection */
> +#define CLKDIV1 0x08 /* clock divider 1 */
> +#define CLKDIV2 0x2C /* clock divider 2 */
> +#define CLKDIV3 0x58 /* clock divider 3 */
> +#define PLLCON0 0x0C /* pll0 control */
> +#define PLLCON1 0x10 /* pll1 control */
> +#define PLLCON2 0x54 /* pll2 control */
> +
> +/* CLKSEL bit filed */
> +#define NPCM7XX_CPUCKSEL GENMASK(1, 0)
> +#define NPCM8XX_CPUCKSEL GENMASK(2, 0)
> +#define SDCKSEL GENMASK(7, 6)
> +#define UARTCKSEL GENMASK(9, 8)
> +#define TIMCKSEL GENMASK(15, 14)
> +
> +/* CLKDIV1 bit filed */
> +#define SPI3CKDIV GENMASK(10, 6)
> +#define MMCCKDIV GENMASK(15, 11)
> +#define UARTDIV1 GENMASK(20, 16)
> +#define TIMCKDIV GENMASK(25, 21)
> +#define CLK4DIV GENMASK(27, 26)
> +
> +/* CLKDIV2 bit filed */
> +#define APB5CKDIV GENMASK(23, 22)
> +#define APB2CKDIV GENMASK(27, 26)
> +
> +/* CLKDIV3 bit filed */
> +#define SPIXCKDIV GENMASK(5, 1)
> +#define SPI0CKDIV GENMASK(10, 6)
> +#define UARTDIV2 GENMASK(15, 11)
> +#define SPI1CKDIV GENMASK(23, 16)
> +
> +/* PLLCON bit filed */
> +#define PLLCON_INDV GENMASK(5, 0)
> +#define PLLCON_OTDV1 GENMASK(10, 8)
> +#define PLLCON_OTDV2 GENMASK(15, 13)
> +#define PLLCON_FBDV GENMASK(27, 16)
> +
> +/* Flags */
> +#define DIV_TYPE1 BIT(0) /* div = clkdiv + 1 */
> +#define DIV_TYPE2 BIT(1) /* div = 1 << clkdiv */
> +#define PRE_DIV2 BIT(2) /* Pre divisor = 2 */
> +#define POST_DIV2 BIT(3) /* Post divisor = 2 */
> +#define FIXED_PARENT BIT(4) /* clock source is fixed */
> +
> +/* Parameters of PLL configuration */
> +struct npcm_clk_pll {
> + const int id;
> + const int parent_id;
> + u32 reg;
> + u32 flags;
> +};
> +
> +/* Parent clock id to clksel mapping */
> +struct parent_data {
> + int id;
> + int clksel;
> +};
> +
> +/* Parameters of parent selection */
> +struct npcm_clk_select {
> + const int id;
> + const struct parent_data *parents;
> + u32 reg;
> + u32 mask;
> + u8 num_parents;
> + u32 flags;
> +};
> +
> +/* Parameters of clock divider */
> +struct npcm_clk_div {
> + const int id;
> + u32 reg;
> + u32 mask;
> + u32 flags;
> +};
> +
> +struct npcm_clk_data {
> + struct npcm_clk_pll *clk_plls;
> + int num_plls;
> + struct npcm_clk_select *clk_selectors;
> + int num_selectors;
> + struct npcm_clk_div *clk_dividers;
> + int num_dividers;
> + int refclk_id;
> + int pll0_id;
> +};
> +
> +struct npcm_clk_priv {
> + void __iomem *base;
> + struct npcm_clk_data *clk_data;
> + int num_clks;
> +};
> +
> +extern const struct clk_ops npcm_clk_ops;
> +
> +#endif
> diff --git a/drivers/clk/nuvoton/clk_npcm7xx.c b/drivers/clk/nuvoton/clk_npcm7xx.c
> new file mode 100644
> index 0000000000..a12aaa2f4c
> --- /dev/null
> +++ b/drivers/clk/nuvoton/clk_npcm7xx.c
> @@ -0,0 +1,95 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2021 Nuvoton Technology Corp.
> + */
> +
> +#include <dm.h>
> +#include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
> +#include "clk_npcm.h"
> +
> +/* Parent clock map */
> +static const struct parent_data pll_parents[] = {
> + {NPCM7XX_CLK_PLL0, 0},
> + {NPCM7XX_CLK_PLL1, 1},
> + {NPCM7XX_CLK_REFCLK, 2},
> + {NPCM7XX_CLK_PLL2DIV2, 3}
> +};
> +
> +static const struct parent_data cpuck_parents[] = {
> + {NPCM7XX_CLK_PLL0, 0},
> + {NPCM7XX_CLK_PLL1, 1},
> + {NPCM7XX_CLK_REFCLK, 2},
> +};
> +
> +static const struct parent_data apb_parent[] = {{NPCM7XX_CLK_AHB, 0}};
> +
> +static struct npcm_clk_pll npcm7xx_clk_plls[] = {
> + {NPCM7XX_CLK_PLL0, NPCM7XX_CLK_REFCLK, PLLCON0, 0},
> + {NPCM7XX_CLK_PLL1, NPCM7XX_CLK_REFCLK, PLLCON1, 0},
> + {NPCM7XX_CLK_PLL2, NPCM7XX_CLK_REFCLK, PLLCON2, 0},
> + {NPCM7XX_CLK_PLL2DIV2, NPCM7XX_CLK_REFCLK, PLLCON2, POST_DIV2}
> +};
> +
> +static struct npcm_clk_select npcm7xx_clk_selectors[] = {
> + {NPCM7XX_CLK_AHB, cpuck_parents, CLKSEL, NPCM7XX_CPUCKSEL, 3, 0},
> + {NPCM7XX_CLK_APB2, apb_parent, 0, 0, 1, FIXED_PARENT},
> + {NPCM7XX_CLK_APB5, apb_parent, 0, 0, 1, FIXED_PARENT},
> + {NPCM7XX_CLK_SPI0, apb_parent, 0, 0, 1, FIXED_PARENT},
> + {NPCM7XX_CLK_SPI3, apb_parent, 0, 0, 1, FIXED_PARENT},
> + {NPCM7XX_CLK_SPIX, apb_parent, 0, 0, 1, FIXED_PARENT},
> + {NPCM7XX_CLK_UART, pll_parents, CLKSEL, UARTCKSEL, 4, 0},
> + {NPCM7XX_CLK_TIMER, pll_parents, CLKSEL, TIMCKSEL, 4, 0},
> + {NPCM7XX_CLK_SDHC, pll_parents, CLKSEL, SDCKSEL, 4, 0}
> +};
> +
> +static struct npcm_clk_div npcm7xx_clk_dividers[] = {
> + {NPCM7XX_CLK_AHB, CLKDIV1, CLK4DIV, DIV_TYPE1 | PRE_DIV2},
> + {NPCM7XX_CLK_APB2, CLKDIV2, APB2CKDIV, DIV_TYPE2},
> + {NPCM7XX_CLK_APB5, CLKDIV2, APB5CKDIV, DIV_TYPE2},
> + {NPCM7XX_CLK_SPI0, CLKDIV3, SPI0CKDIV, DIV_TYPE1},
> + {NPCM7XX_CLK_SPI3, CLKDIV1, SPI3CKDIV, DIV_TYPE1},
> + {NPCM7XX_CLK_SPIX, CLKDIV3, SPIXCKDIV, DIV_TYPE1},
> + {NPCM7XX_CLK_UART, CLKDIV1, UARTDIV1, DIV_TYPE1},
> + {NPCM7XX_CLK_TIMER, CLKDIV1, TIMCKDIV, DIV_TYPE2},
> + {NPCM7XX_CLK_SDHC, CLKDIV1, MMCCKDIV, DIV_TYPE1}
> +};
> +
> +static struct npcm_clk_data npcm7xx_clk_data = {
> + .clk_plls = npcm7xx_clk_plls,
> + .num_plls = ARRAY_SIZE(npcm7xx_clk_plls),
> + .clk_selectors = npcm7xx_clk_selectors,
> + .num_selectors = ARRAY_SIZE(npcm7xx_clk_selectors),
> + .clk_dividers = npcm7xx_clk_dividers,
> + .num_dividers = ARRAY_SIZE(npcm7xx_clk_dividers),
> + .refclk_id = NPCM7XX_CLK_REFCLK,
> + .pll0_id = NPCM7XX_CLK_PLL0,
> +};
> +
> +static int npcm7xx_clk_probe(struct udevice *dev)
> +{
> + struct npcm_clk_priv *priv = dev_get_priv(dev);
> +
> + priv->base = dev_read_addr_ptr(dev);
> + if (!priv->base)
> + return -EINVAL;
> +
> + priv->clk_data = &npcm7xx_clk_data;
> + priv->num_clks = NPCM7XX_NUM_CLOCKS;
> +
> + return 0;
> +}
> +
> +static const struct udevice_id npcm7xx_clk_ids[] = {
> + { .compatible = "nuvoton,npcm750-clk" },
> + { }
> +};
> +
> +U_BOOT_DRIVER(clk_npcm) = {
> + .name = "clk_npcm",
> + .id = UCLASS_CLK,
> + .of_match = npcm7xx_clk_ids,
> + .ops = &npcm_clk_ops,
> + .priv_auto = sizeof(struct npcm_clk_priv),
> + .probe = npcm7xx_clk_probe,
> + .flags = DM_FLAG_PRE_RELOC,
> +};
> diff --git a/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h b/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
> new file mode 100644
> index 0000000000..65e6bc4eee
> --- /dev/null
> +++ b/include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
> @@ -0,0 +1,46 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Nuvoton NPCM7xx Clock Generator binding
> + * clock binding number for all clocks supportted by nuvoton,npcm7xx-clk
> + *
> + * Copyright (C) 2018 Nuvoton Technologies tali.perry@nuvoton.com
> + *
> + */
> +
> +#ifndef __DT_BINDINGS_CLOCK_NPCM7XX_H
> +#define __DT_BINDINGS_CLOCK_NPCM7XX_H
> +
> +#define NPCM7XX_CLK_CPU 0
> +#define NPCM7XX_CLK_GFX_PIXEL 1
> +#define NPCM7XX_CLK_MC 2
> +#define NPCM7XX_CLK_ADC 3
> +#define NPCM7XX_CLK_AHB 4
> +#define NPCM7XX_CLK_TIMER 5
> +#define NPCM7XX_CLK_UART 6
> +#define NPCM7XX_CLK_MMC 7
> +#define NPCM7XX_CLK_SPI3 8
> +#define NPCM7XX_CLK_PCI 9
> +#define NPCM7XX_CLK_AXI 10
> +#define NPCM7XX_CLK_APB4 11
> +#define NPCM7XX_CLK_APB3 12
> +#define NPCM7XX_CLK_APB2 13
> +#define NPCM7XX_CLK_APB1 14
> +#define NPCM7XX_CLK_APB5 15
> +#define NPCM7XX_CLK_CLKOUT 16
> +#define NPCM7XX_CLK_GFX 17
> +#define NPCM7XX_CLK_SU 18
> +#define NPCM7XX_CLK_SU48 19
> +#define NPCM7XX_CLK_SDHC 20
> +#define NPCM7XX_CLK_SPI0 21
> +#define NPCM7XX_CLK_SPIX 22
> +#define NPCM7XX_CLK_REFCLK 23
> +#define NPCM7XX_CLK_SYSBYPCK 24
> +#define NPCM7XX_CLK_MCBYPCK 25
> +#define NPCM7XX_CLK_PLL0 26
> +#define NPCM7XX_CLK_PLL1 27
> +#define NPCM7XX_CLK_PLL2 28
> +#define NPCM7XX_CLK_PLL2DIV2 29
> +#define NPCM7XX_NUM_CLOCKS (NPCM7XX_CLK_PLL2DIV2 + 1)
> +
> +#endif
> +
>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750
2022-04-19 5:32 ` [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750 Jim Liu
2022-04-22 0:36 ` Sean Anderson
@ 2022-05-05 18:52 ` Tom Rini
1 sibling, 0 replies; 10+ messages in thread
From: Tom Rini @ 2022-05-05 18:52 UTC (permalink / raw)
To: Jim Liu; +Cc: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, u-boot
[-- Attachment #1: Type: text/plain, Size: 303 bytes --]
On Tue, Apr 19, 2022 at 01:32:20PM +0800, Jim Liu wrote:
> Add clock controller driver for NPCM750
>
> Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
> Signed-off-by: Stanley Chu <yschu@nuvoton.com>
> Reviewed-by: Sean Anderson <seanga2@gmail.com>
Applied to u-boot/master, thanks!
--
Tom
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 659 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v3 3/4] serial: npcm: Add support for Nuvoton NPCM SoCs
2022-04-19 5:32 [PATCH v3 0/4] Add Nuvoton NPCM750 support Jim Liu
2022-04-19 5:32 ` [PATCH v3 1/4] arm: nuvoton: Add support for Nuvoton NPCM750 BMC Jim Liu
2022-04-19 5:32 ` [PATCH v3 2/4] clk: nuvoton: Add support for NPCM750 Jim Liu
@ 2022-04-19 5:32 ` Jim Liu
2022-05-05 18:52 ` Tom Rini
2022-04-19 5:32 ` [PATCH v3 4/4] timer: npcm: Add NPCM timer support Jim Liu
3 siblings, 1 reply; 10+ messages in thread
From: Jim Liu @ 2022-04-19 5:32 UTC (permalink / raw)
To: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, trini; +Cc: u-boot, Stanley Chu
Add Nuvoton BMC NPCM7xx/NPCM8xx uart driver
Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
---
Changes for v3:
- no changes since v2
Changes for v2:
- coding style cleanup
- Add support for setting parent clock
---
drivers/serial/Kconfig | 9 ++
drivers/serial/Makefile | 1 +
drivers/serial/serial_npcm.c | 157 +++++++++++++++++++++++++++++++++++
3 files changed, 167 insertions(+)
create mode 100644 drivers/serial/serial_npcm.c
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index dc514c95d3..5434389835 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -995,6 +995,15 @@ config MPC8XX_CONS
depends on MPC8xx
default y
+config NPCM_SERIAL
+ bool "Nuvoton NPCM UART driver"
+ depends on DM_SERIAL
+ help
+ Select this to enable UART support for Nuvoton BMCs
+ (NPCM7xx and NPCM8xx).
+ The driver enables the onboard serial port with 8-N-1
+ configuration.
+
config XEN_SERIAL
bool "XEN serial support"
depends on XEN
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index b68b5e7b2b..033e060a44 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -68,6 +68,7 @@ obj-$(CONFIG_MSM_GENI_SERIAL) += serial_msm_geni.o
obj-$(CONFIG_MVEBU_A3700_UART) += serial_mvebu_a3700.o
obj-$(CONFIG_MPC8XX_CONS) += serial_mpc8xx.o
obj-$(CONFIG_NULLDEV_SERIAL) += serial_nulldev.o
+obj-$(CONFIG_NPCM_SERIAL) += serial_npcm.o
obj-$(CONFIG_OCTEON_SERIAL_BOOTCMD) += serial_octeon_bootcmd.o
obj-$(CONFIG_OCTEON_SERIAL_PCIE_CONSOLE) += serial_octeon_pcie_console.o
obj-$(CONFIG_OWL_SERIAL) += serial_owl.o
diff --git a/drivers/serial/serial_npcm.c b/drivers/serial/serial_npcm.c
new file mode 100644
index 0000000000..76ac7cb80d
--- /dev/null
+++ b/drivers/serial/serial_npcm.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2021 Nuvoton Technology Corp.
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <serial.h>
+
+struct npcm_uart {
+ union {
+ u32 rbr; /* Receive Buffer Register */
+ u32 thr; /* Transmit Holding Register */
+ u32 dll; /* Divisor Latch (Low Byte) Register */
+ };
+ union {
+ u32 ier; /* Interrupt Enable Register */
+ u32 dlm; /* Divisor Latch (Low Byte) Register */
+ };
+ union {
+ u32 iir; /* Interrupt Identification Register */
+ u32 fcr; /* FIFO Control Register */
+ };
+ u32 lcr; /* Line Control Register */
+ u32 mcr; /* Modem Control Register */
+ u32 lsr; /* Line Status Control Register */
+ u32 msr; /* Modem Status Register */
+ u32 tor; /* Timeout Register */
+};
+
+#define LCR_WLS_8BITS 3 /* 8-bit word length select */
+#define FCR_TFR BIT(2) /* TxFIFO reset */
+#define FCR_RFR BIT(1) /* RxFIFO reset */
+#define FCR_FME BIT(0) /* FIFO mode enable */
+#define LSR_THRE BIT(5) /* Status of TxFIFO empty */
+#define LSR_RFDR BIT(0) /* Status of RxFIFO data ready */
+#define LCR_DLAB BIT(7) /* Divisor latch access bit */
+
+struct npcm_serial_plat {
+ struct npcm_uart *reg;
+ u32 uart_clk; /* frequency of uart clock source */
+};
+
+static int npcm_serial_pending(struct udevice *dev, bool input)
+{
+ struct npcm_serial_plat *plat = dev_get_plat(dev);
+ struct npcm_uart *uart = plat->reg;
+
+ if (input)
+ return readb(&uart->lsr) & LSR_RFDR ? 1 : 0;
+ else
+ return readb(&uart->lsr) & LSR_THRE ? 0 : 1;
+}
+
+static int npcm_serial_putc(struct udevice *dev, const char ch)
+{
+ struct npcm_serial_plat *plat = dev_get_plat(dev);
+ struct npcm_uart *uart = plat->reg;
+
+ if (!(readb(&uart->lsr) & LSR_THRE))
+ return -EAGAIN;
+
+ writeb(ch, &uart->thr);
+
+ return 0;
+}
+
+static int npcm_serial_getc(struct udevice *dev)
+{
+ struct npcm_serial_plat *plat = dev_get_plat(dev);
+ struct npcm_uart *uart = plat->reg;
+
+ if (!(readb(&uart->lsr) & LSR_RFDR))
+ return -EAGAIN;
+
+ return readb(&uart->rbr);
+}
+
+static int npcm_serial_setbrg(struct udevice *dev, int baudrate)
+{
+ struct npcm_serial_plat *plat = dev_get_plat(dev);
+ struct npcm_uart *uart = plat->reg;
+ u16 divisor;
+
+ /* BaudOut = UART Clock / (16 * [Divisor + 2]) */
+ divisor = DIV_ROUND_CLOSEST(plat->uart_clk, 16 * baudrate + 2) - 2;
+
+ setbits_8(&uart->lcr, LCR_DLAB);
+ writeb(divisor & 0xff, &uart->dll);
+ writeb(divisor >> 8, &uart->dlm);
+ clrbits_8(&uart->lcr, LCR_DLAB);
+
+ return 0;
+}
+
+static int npcm_serial_probe(struct udevice *dev)
+{
+ struct npcm_serial_plat *plat = dev_get_plat(dev);
+ struct npcm_uart *uart = plat->reg;
+ struct clk clk, parent;
+ u32 freq;
+ int ret;
+
+ plat->reg = dev_read_addr_ptr(dev);
+ freq = dev_read_u32_default(dev, "clock-frequency", 0);
+
+ ret = clk_get_by_index(dev, 0, &clk);
+ if (ret < 0)
+ return ret;
+
+ ret = clk_get_by_index(dev, 1, &parent);
+ if (!ret) {
+ ret = clk_set_parent(&clk, &parent);
+ if (ret)
+ return ret;
+ }
+
+ ret = clk_set_rate(&clk, freq);
+ if (ret < 0)
+ return ret;
+ plat->uart_clk = ret;
+
+ /* Disable all interrupt */
+ writeb(0, &uart->ier);
+
+ /* Set 8 bit, 1 stop, no parity */
+ writeb(LCR_WLS_8BITS, &uart->lcr);
+
+ /* Reset RX/TX FIFO */
+ writeb(FCR_FME | FCR_RFR | FCR_TFR, &uart->fcr);
+
+ return 0;
+}
+
+static const struct dm_serial_ops npcm_serial_ops = {
+ .getc = npcm_serial_getc,
+ .setbrg = npcm_serial_setbrg,
+ .putc = npcm_serial_putc,
+ .pending = npcm_serial_pending,
+};
+
+static const struct udevice_id npcm_serial_ids[] = {
+ { .compatible = "nuvoton,npcm750-uart" },
+ { .compatible = "nuvoton,npcm845-uart" },
+ { }
+};
+
+U_BOOT_DRIVER(serial_npcm) = {
+ .name = "serial_npcm",
+ .id = UCLASS_SERIAL,
+ .of_match = npcm_serial_ids,
+ .plat_auto = sizeof(struct npcm_serial_plat),
+ .probe = npcm_serial_probe,
+ .ops = &npcm_serial_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v3 3/4] serial: npcm: Add support for Nuvoton NPCM SoCs
2022-04-19 5:32 ` [PATCH v3 3/4] serial: npcm: Add support for Nuvoton NPCM SoCs Jim Liu
@ 2022-05-05 18:52 ` Tom Rini
0 siblings, 0 replies; 10+ messages in thread
From: Tom Rini @ 2022-05-05 18:52 UTC (permalink / raw)
To: Jim Liu; +Cc: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, u-boot
[-- Attachment #1: Type: text/plain, Size: 257 bytes --]
On Tue, Apr 19, 2022 at 01:32:21PM +0800, Jim Liu wrote:
> Add Nuvoton BMC NPCM7xx/NPCM8xx uart driver
>
> Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
> Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Applied to u-boot/master, thanks!
--
Tom
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 659 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v3 4/4] timer: npcm: Add NPCM timer support
2022-04-19 5:32 [PATCH v3 0/4] Add Nuvoton NPCM750 support Jim Liu
` (2 preceding siblings ...)
2022-04-19 5:32 ` [PATCH v3 3/4] serial: npcm: Add support for Nuvoton NPCM SoCs Jim Liu
@ 2022-04-19 5:32 ` Jim Liu
2022-05-05 18:52 ` Tom Rini
3 siblings, 1 reply; 10+ messages in thread
From: Jim Liu @ 2022-04-19 5:32 UTC (permalink / raw)
To: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, trini; +Cc: u-boot, Stanley Chu
Add Nuvoton BMC NPCM7xx/NPCM8xx timer driver.
Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
---
Changes for v3:
- no changes since v2
Changes for v2:
- coding style cleanup
---
drivers/timer/Kconfig | 9 +++
drivers/timer/Makefile | 1 +
drivers/timer/npcm-timer.c | 115 +++++++++++++++++++++++++++++++++++++
3 files changed, 125 insertions(+)
create mode 100644 drivers/timer/npcm-timer.c
diff --git a/drivers/timer/Kconfig b/drivers/timer/Kconfig
index 8fad59b81a..4d538a6892 100644
--- a/drivers/timer/Kconfig
+++ b/drivers/timer/Kconfig
@@ -151,6 +151,15 @@ config NOMADIK_MTU_TIMER
The MTU provides 4 decrementing free-running timers.
At the moment, only the first timer is used by the driver.
+config NPCM_TIMER
+ bool "Nuvoton NPCM timer support"
+ depends on TIMER
+ help
+ Select this to enable a timer on Nuvoton NPCM SoCs.
+ NPCM timer module has 5 down-counting timers, only the first timer
+ is used to implement timer ops. No support for early timer and
+ boot timer.
+
config OMAP_TIMER
bool "Omap timer support"
depends on TIMER
diff --git a/drivers/timer/Makefile b/drivers/timer/Makefile
index 58da6c1e84..6d7558cc56 100644
--- a/drivers/timer/Makefile
+++ b/drivers/timer/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_CADENCE_TTC_TIMER) += cadence-ttc.o
obj-$(CONFIG_DESIGNWARE_APB_TIMER) += dw-apb-timer.o
obj-$(CONFIG_MPC83XX_TIMER) += mpc83xx_timer.o
obj-$(CONFIG_NOMADIK_MTU_TIMER) += nomadik-mtu-timer.o
+obj-$(CONFIG_NPCM_TIMER) += npcm-timer.o
obj-$(CONFIG_OMAP_TIMER) += omap-timer.o
obj-$(CONFIG_RENESAS_OSTM_TIMER) += ostm_timer.o
obj-$(CONFIG_RISCV_TIMER) += riscv_timer.o
diff --git a/drivers/timer/npcm-timer.c b/drivers/timer/npcm-timer.c
new file mode 100644
index 0000000000..4562a6f231
--- /dev/null
+++ b/drivers/timer/npcm-timer.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2022 Nuvoton Technology Corp.
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <timer.h>
+#include <asm/io.h>
+
+#define NPCM_TIMER_CLOCK_RATE 1000000UL /* 1MHz timer */
+#define NPCM_TIMER_INPUT_RATE 25000000UL /* Rate of input clock */
+#define NPCM_TIMER_TDR_MASK GENMASK(23, 0)
+#define NPCM_TIMER_MAX_VAL NPCM_TIMER_TDR_MASK /* max counter value */
+
+/* Register offsets */
+#define TCR0 0x0 /* Timer Control and Status Register */
+#define TICR0 0x8 /* Timer Initial Count Register */
+#define TDR0 0x10 /* Timer Data Register */
+
+/* TCR fields */
+#define TCR_MODE_PERIODIC BIT(27)
+#define TCR_EN BIT(30)
+#define TCR_PRESCALE (NPCM_TIMER_INPUT_RATE / NPCM_TIMER_CLOCK_RATE - 1)
+
+enum input_clock_type {
+ INPUT_CLOCK_FIXED, /* input clock rate is fixed */
+ INPUT_CLOCK_NON_FIXED
+};
+
+/**
+ * struct npcm_timer_priv - private data for npcm timer driver
+ * npcm timer is a 24-bits down-counting timer.
+ *
+ * @last_count: last hw counter value
+ * @counter: the value to be returned for get_count ops
+ */
+struct npcm_timer_priv {
+ void __iomem *base;
+ u32 last_count;
+ u64 counter;
+};
+
+static u64 npcm_timer_get_count(struct udevice *dev)
+{
+ struct npcm_timer_priv *priv = dev_get_priv(dev);
+ u32 val;
+
+ /* The timer is counting down */
+ val = readl(priv->base + TDR0) & NPCM_TIMER_TDR_MASK;
+ if (val <= priv->last_count)
+ priv->counter += priv->last_count - val;
+ else
+ priv->counter += priv->last_count + (NPCM_TIMER_MAX_VAL + 1 - val);
+ priv->last_count = val;
+
+ return priv->counter;
+}
+
+static int npcm_timer_probe(struct udevice *dev)
+{
+ struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct npcm_timer_priv *priv = dev_get_priv(dev);
+ enum input_clock_type type = dev_get_driver_data(dev);
+ struct clk clk;
+ int ret;
+
+ priv->base = dev_read_addr_ptr(dev);
+ if (!priv->base)
+ return -EINVAL;
+ uc_priv->clock_rate = NPCM_TIMER_CLOCK_RATE;
+
+ if (type == INPUT_CLOCK_NON_FIXED) {
+ ret = clk_get_by_index(dev, 0, &clk);
+ if (ret < 0)
+ return ret;
+
+ ret = clk_set_rate(&clk, NPCM_TIMER_INPUT_RATE);
+ if (ret < 0)
+ return ret;
+ }
+
+ /*
+ * Configure timer and start
+ * periodic mode
+ * timer clock rate = input clock / prescale
+ */
+ writel(0, priv->base + TCR0);
+ writel(NPCM_TIMER_MAX_VAL, priv->base + TICR0);
+ writel(TCR_EN | TCR_MODE_PERIODIC | TCR_PRESCALE,
+ priv->base + TCR0);
+
+ return 0;
+}
+
+static const struct timer_ops npcm_timer_ops = {
+ .get_count = npcm_timer_get_count,
+};
+
+static const struct udevice_id npcm_timer_ids[] = {
+ { .compatible = "nuvoton,npcm845-timer", .data = INPUT_CLOCK_FIXED},
+ { .compatible = "nuvoton,npcm750-timer", .data = INPUT_CLOCK_NON_FIXED},
+ {}
+};
+
+U_BOOT_DRIVER(npcm_timer) = {
+ .name = "npcm_timer",
+ .id = UCLASS_TIMER,
+ .of_match = npcm_timer_ids,
+ .priv_auto = sizeof(struct npcm_timer_priv),
+ .probe = npcm_timer_probe,
+ .ops = &npcm_timer_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v3 4/4] timer: npcm: Add NPCM timer support
2022-04-19 5:32 ` [PATCH v3 4/4] timer: npcm: Add NPCM timer support Jim Liu
@ 2022-05-05 18:52 ` Tom Rini
0 siblings, 0 replies; 10+ messages in thread
From: Tom Rini @ 2022-05-05 18:52 UTC (permalink / raw)
To: Jim Liu; +Cc: JJLIU0, KWLIU, YSCHU, lukma, seanga2, sjg, sr, u-boot
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On Tue, Apr 19, 2022 at 01:32:22PM +0800, Jim Liu wrote:
> Add Nuvoton BMC NPCM7xx/NPCM8xx timer driver.
>
> Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
> Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Applied to u-boot/master, thanks!
--
Tom
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^ permalink raw reply [flat|nested] 10+ messages in thread