[PATCH v4 0/4] arm: kirkwood: Add support for Pogoplug V4

[PATCH v4 0/4] arm: kirkwood: Add support for Pogoplug V4

[Tony Dinh]

Pogoplug V4 specifications:

Kirkwood 88F6192 SoC
800 MHz CPU
1Gbs Ethernet
128 MB RAM
128 MB NAND
1x USB 2.0
2x USB 3.0 (on PCIe bus)
1 SDHC slot
1x External SATA port (USM enclosure form factor slot)


Changes in v4:
- Remove CONFIG_FEATURE_COMMAND_EDITING and ifdefs for CMD_NET
in include header

Changes in v3:
- Migrate symbols from board include header to Kconfig
- Squash board file small patches into one patch
- Migrate config symbols from board include header to defconfig
- Remove obsolete config symbols from header file
- Don't use ifdefs for unselectable config symbols in header file

Changes in v2:
- Use mainline Linux DTS version
- Move constants to .c file and remove header file
- Use canonical format for defconfig file

Tony Dinh (4):
  arm: kirkwood: Pogoplug-V4 : Add DTS files
  arm: kirkwood: Pogoplug-V4 : Add Kconfig files
  arm: kirkwood: Pogoplug-V4 : Add board implementation files
  arm: kirkwood: Pogoplug V4 : Add board include header and defconfig
    files

 arch/arm/dts/Makefile                       |   1 +
 arch/arm/dts/kirkwood-pogoplug-series-4.dts | 180 ++++++++++++++++
 arch/arm/mach-kirkwood/Kconfig              |   6 +
 board/cloudengines/pogo_v4/Kconfig          |  16 ++
 board/cloudengines/pogo_v4/MAINTAINERS      |   6 +
 board/cloudengines/pogo_v4/Makefile         |  10 +
 board/cloudengines/pogo_v4/kwbimage.cfg     | 148 +++++++++++++
 board/cloudengines/pogo_v4/pogo_v4.c        | 220 ++++++++++++++++++++
 configs/pogo_v4_defconfig                   |  79 +++++++
 include/configs/pogo_v4.h                   |  53 +++++
 10 files changed, 719 insertions(+)
 create mode 100644 arch/arm/dts/kirkwood-pogoplug-series-4.dts
 create mode 100644 board/cloudengines/pogo_v4/Kconfig
 create mode 100644 board/cloudengines/pogo_v4/MAINTAINERS
 create mode 100644 board/cloudengines/pogo_v4/Makefile
 create mode 100644 board/cloudengines/pogo_v4/kwbimage.cfg
 create mode 100644 board/cloudengines/pogo_v4/pogo_v4.c
 create mode 100644 configs/pogo_v4_defconfig
 create mode 100644 include/configs/pogo_v4.h

-- 
2.30.2

[PATCH v4 1/4] arm: kirkwood: Pogoplug-V4 : Add DTS files

[Tony Dinh]

Add DTS files for Pogoplug V4 board

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
---

(no changes since v2)

Changes in v2:
- Use mainline Linux DTS version

 arch/arm/dts/Makefile                       |   1 +
 arch/arm/dts/kirkwood-pogoplug-series-4.dts | 180 ++++++++++++++++++++
 2 files changed, 181 insertions(+)
 create mode 100644 arch/arm/dts/kirkwood-pogoplug-series-4.dts

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 1b65e65eb8..ce33a4b52b 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -71,6 +71,7 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += \
 	kirkwood-openrd-client.dtb \
 	kirkwood-openrd-ultimate.dtb \
 	kirkwood-pogo_e02.dtb \
+	kirkwood-pogoplug-series-4.dtb \
 	kirkwood-sheevaplug.dtb
 
 dtb-$(CONFIG_MACH_S900) += \
diff --git a/arch/arm/dts/kirkwood-pogoplug-series-4.dts b/arch/arm/dts/kirkwood-pogoplug-series-4.dts
new file mode 100644
index 0000000000..5aa4669ae2
--- /dev/null
+++ b/arch/arm/dts/kirkwood-pogoplug-series-4.dts
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * kirkwood-pogoplug-series-4.dts - Device tree file for PogoPlug Series 4
+ * inspired by the board files made by Kevin Mihelich for ArchLinux,
+ * and their DTS file.
+ *
+ * Copyright (C) 2015 Linus Walleij <linus.walleij@linaro.org>
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6192.dtsi"
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+	model = "Cloud Engines PogoPlug Series 4";
+	compatible = "cloudengines,pogoplugv4", "marvell,kirkwood-88f6192",
+		     "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x08000000>;
+	};
+
+	chosen {
+		stdout-path = "uart0:115200n8";
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_button_eject>;
+		pinctrl-names = "default";
+
+		eject {
+			debounce-interval = <50>;
+			wakeup-source;
+			linux,code = <KEY_EJECTCD>;
+			label = "Eject Button";
+			gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_led_green &pmx_led_red>;
+		pinctrl-names = "default";
+
+		health {
+			label = "pogoplugv4:green:health";
+			gpios = <&gpio0 22 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+		fault {
+			label = "pogoplugv4:red:fault";
+			gpios = <&gpio0 24 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pinctrl {
+	pmx_sata0: pmx-sata0 {
+		marvell,pins = "mpp21";
+		marvell,function = "sata0";
+	};
+
+	pmx_sata1: pmx-sata1 {
+		marvell,pins = "mpp20";
+		marvell,function = "sata1";
+	};
+
+	pmx_sdio_cd: pmx-sdio-cd {
+		marvell,pins = "mpp27";
+		marvell,function = "gpio";
+	};
+
+	pmx_sdio_wp: pmx-sdio-wp {
+		marvell,pins = "mpp28";
+		marvell,function = "gpio";
+	};
+
+	pmx_button_eject: pmx-button-eject {
+		marvell,pins = "mpp29";
+		marvell,function = "gpio";
+	};
+
+	pmx_led_green: pmx-led-green {
+		marvell,pins = "mpp22";
+		marvell,function = "gpio";
+	};
+
+	pmx_led_red: pmx-led-red {
+		marvell,pins = "mpp24";
+		marvell,function = "gpio";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+/*
+ * This PCIE controller has a USB 3.0 XHCI controller at 1,0
+ */
+&pciec {
+	status = "okay";
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&sata {
+	status = "okay";
+	pinctrl-0 = <&pmx_sata0 &pmx_sata1>;
+	pinctrl-names = "default";
+	nr-ports = <1>;
+};
+
+&sdio {
+	status = "okay";
+	pinctrl-0 = <&pmx_sdio &pmx_sdio_cd &pmx_sdio_wp>;
+	pinctrl-names = "default";
+	cd-gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
+};
+
+&nand {
+	/* 128 MiB of NAND flash */
+	chip-delay = <40>;
+	status = "okay";
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "u-boot";
+			reg = <0x00000000 0x200000>;
+			read-only;
+		};
+
+		partition@200000 {
+			label = "uImage";
+			reg = <0x00200000 0x300000>;
+		};
+
+		partition@500000 {
+			label = "uImage2";
+			reg = <0x00500000 0x300000>;
+		};
+
+		partition@800000 {
+			label = "failsafe";
+			reg = <0x00800000 0x800000>;
+		};
+
+		partition@1000000 {
+			label = "root";
+			reg = <0x01000000 0x7000000>;
+		};
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+	ethernet0-port@0 {
+		phy-handle = <&ethphy0>;
+	};
+};
-- 
2.30.2

[PATCH v4 2/4] arm: kirkwood: Pogoplug-V4 : Add Kconfig files

[Tony Dinh]

Add Kconfig files for Pogoplug V4 board

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
---

(no changes since v3)

Changes in v3:
- Migrate symbols from board include header to Kconfig

 arch/arm/mach-kirkwood/Kconfig     |  6 ++++++
 board/cloudengines/pogo_v4/Kconfig | 16 ++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 board/cloudengines/pogo_v4/Kconfig

diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index c060cc8546..382b836267 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -51,6 +51,11 @@ config TARGET_POGO_E02
 	select FEROCEON_88FR131
 	select KW88F6281
 
+config TARGET_POGO_V4
+	bool "Pogoplug V4 Board"
+	select FEROCEON_88FR131
+	select KW88F6192
+
 config TARGET_DNS325
 	bool "dns325 Board"
 	select FEROCEON_88FR131
@@ -123,6 +128,7 @@ source "board/Marvell/guruplug/Kconfig"
 source "board/Marvell/sheevaplug/Kconfig"
 source "board/buffalo/lsxl/Kconfig"
 source "board/cloudengines/pogo_e02/Kconfig"
+source "board/cloudengines/pogo_v4/Kconfig"
 source "board/d-link/dns325/Kconfig"
 source "board/iomega/iconnect/Kconfig"
 source "board/keymile/Kconfig"
diff --git a/board/cloudengines/pogo_v4/Kconfig b/board/cloudengines/pogo_v4/Kconfig
new file mode 100644
index 0000000000..db3b76b4d4
--- /dev/null
+++ b/board/cloudengines/pogo_v4/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2014-2021 Tony Dinh <mibodhi@gmail.com>
+#
+if TARGET_POGO_V4
+
+config SYS_BOARD
+	default "pogo_v4"
+
+config SYS_VENDOR
+	default "cloudengines"
+
+config SYS_CONFIG_NAME
+	default "pogo_v4"
+
+endif
-- 
2.30.2

[PATCH v4 3/4] arm: kirkwood: Pogoplug-V4 : Add board implementation files

[Tony Dinh]

Note: currently the fdt_get_phy_addr function in this file is
duplicate in this board and many other Kirkwood boards
(eg. Sheevaplug, GoFlex Home, etc.). This function is being
factored out into common area by another patch. And because it
was written for flattree only, the patch is being rewritten to
use livetree calls.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
---

(no changes since v3)

Changes in v3:
- Squash board file small patches into one patch

Changes in v2:
- Move constants to .c file and remove header file

 board/cloudengines/pogo_v4/MAINTAINERS  |   6 +
 board/cloudengines/pogo_v4/Makefile     |  10 ++
 board/cloudengines/pogo_v4/kwbimage.cfg | 148 ++++++++++++++++
 board/cloudengines/pogo_v4/pogo_v4.c    | 220 ++++++++++++++++++++++++
 4 files changed, 384 insertions(+)
 create mode 100644 board/cloudengines/pogo_v4/MAINTAINERS
 create mode 100644 board/cloudengines/pogo_v4/Makefile
 create mode 100644 board/cloudengines/pogo_v4/kwbimage.cfg
 create mode 100644 board/cloudengines/pogo_v4/pogo_v4.c

diff --git a/board/cloudengines/pogo_v4/MAINTAINERS b/board/cloudengines/pogo_v4/MAINTAINERS
new file mode 100644
index 0000000000..35fd7858b7
--- /dev/null
+++ b/board/cloudengines/pogo_v4/MAINTAINERS
@@ -0,0 +1,6 @@
+POGO_V4 BOARD
+M:	Tony Dinh <mibodhi@gmail.com>
+S:	Maintained
+F:	board/cloudengines/pogo_v4/
+F:	include/configs/pogo_v4.h
+F:	configs/pogo_v4_defconfig
diff --git a/board/cloudengines/pogo_v4/Makefile b/board/cloudengines/pogo_v4/Makefile
new file mode 100644
index 0000000000..511bf5ff7e
--- /dev/null
+++ b/board/cloudengines/pogo_v4/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2014-2021 Tony Dinh <mibodhi@gmail.com>
+#
+# Based on
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+#
+
+obj-y	:= pogo_v4.o
diff --git a/board/cloudengines/pogo_v4/kwbimage.cfg b/board/cloudengines/pogo_v4/kwbimage.cfg
new file mode 100644
index 0000000000..f6294fe313
--- /dev/null
+++ b/board/cloudengines/pogo_v4/kwbimage.cfg
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2012
+# David Purdy <david.c.purdy@gmail.com>
+#
+# Based on Kirkwood support:
+# (C) Copyright 2009
+# Marvell Semiconductor <www.marvell.com>
+# Written-by: Prafulla Wadaskar <prafulla <at> marvell.com>
+
+# Boot Media configurations   (DONE)
+BOOT_FROM	nand
+NAND_ECC_MODE	default
+NAND_PAGE_SIZE	0x0800
+
+# SOC registers configuration using bootrom header extension
+# Maximum KWBIMAGE_MAX_CONFIG configurations allowed
+
+# Configure RGMII-0 interface pad voltage to 1.8V (SHOULD BE SAME)
+DATA 0xffd100e0 0x1b1b1b9b
+
+#Dram initalization for SINGLE x16 CL=3 @ 200MHz   (need CL=3 @ 200MHz?)
+DATA 0xffd01400 0x43000618	# DDR Configuration register
+# bit13-0:  0x200 (200 DDR2 clks refresh rate)
+# bit23-14: zero
+# bit24: 1= enable exit self refresh mode on DDR access
+# bit25: 1 required
+# bit29-26: zero
+# bit31-30: 01
+
+DATA 0xffd01404 0x34143000	# DDR Controller Control Low
+# bit 4:    0=addr/cmd in smame cycle
+# bit 5:    0=clk is driven during self refresh, we don't care for APX
+# bit 6:    0=use recommended falling edge of clk for addr/cmd
+# bit14:    0=input buffer always powered up
+# bit18:    1=cpu lock transaction enabled
+# bit23-20: 3=recommended value for CL=3 and STARTBURST_DEL disabled bit31=0
+# bit27-24: 6= CL+3, STARTBURST sample stages, for freqs 400MHz, unbuffered DIMM
+# bit30-28: 3 required
+# bit31:    0=no additional STARTBURST delay
+
+DATA 0xffd01408 0x11012227	# DDR Timing (Low) (active cycles value +1)
+# bit3-0:   TRAS lsbs
+# bit7-4:   TRCD
+# bit11- 8: TRP
+# bit15-12: TWR
+# bit19-16: TWTR
+# bit20:    TRAS msb
+# bit23-21: 0x0
+# bit27-24: TRRD
+# bit31-28: TRTP
+
+DATA 0xffd0140c 0x00000819	#  DDR Timing (High)
+# bit6-0:   TRFC
+# bit8-7:   TR2R
+# bit10-9:  TR2W
+# bit12-11: TW2W
+# bit31-13: zero required
+
+DATA 0xffd01410 0x00000001	#  DDR Address Control  (changed to Dockstar vals)
+# bit1-0:   00, Cs0width=x16
+# bit3-2:   10, Cs0size=512Mb
+# bit5-4:   00, Cs2width=nonexistent
+# bit7-6:   00, Cs1size =nonexistent
+# bit9-8:   00, Cs2width=nonexistent
+# bit11-10: 00, Cs2size =nonexistent
+# bit13-12: 00, Cs3width=nonexistent
+# bit15-14: 00, Cs3size =nonexistent
+# bit16:    0,  Cs0AddrSel
+# bit17:    0,  Cs1AddrSel
+# bit18:    0,  Cs2AddrSel
+# bit19:    0,  Cs3AddrSel
+# bit31-20: 0 required
+
+DATA 0xffd01414 0x00000000	#  DDR Open Pages Control
+# bit0:    0,  OpenPage enabled
+# bit31-1: 0 required
+
+DATA 0xffd01418 0x00000000	#  DDR Operation
+# bit3-0:   0x0, DDR cmd
+# bit31-4:  0 required
+
+DATA 0xffd0141c 0x00000632	#  DDR Mode
+# bit2-0:   2, BurstLen=2 required
+# bit3:     0, BurstType=0 required
+# bit6-4:   4, CL=5				(<===== change to CL=3 ?)
+# bit7:     0, TestMode=0 normal
+# bit8:     0, DLL reset=0 normal
+# bit11-9:  6, auto-precharge write recovery ????????????
+# bit12:    0, PD must be zero
+# bit31-13: 0 required
+
+DATA 0xffd01420 0x00000040	#  DDR Extended Mode
+# bit0:    0,  DDR DLL enabled
+# bit1:    0,  DDR drive strenght normal
+# bit2:    0,  DDR ODT control lsd (disabled)
+# bit5-3:  000, required
+# bit6:    1,  DDR ODT control msb, (disabled)
+# bit9-7:  000, required
+# bit10:   0,  differential DQS enabled
+# bit11:   0, required
+# bit12:   0, DDR output buffer enabled
+# bit31-13: 0 required
+
+DATA 0xffd01424 0x0000F07F	#  DDR Controller Control High
+# bit2-0:  111, required
+# bit3  :  1  , MBUS Burst Chop disabled
+# bit6-4:  111, required
+# bit7  :  0
+# bit8  :  0  , no sample stage
+# bit9  :  0  , no half clock cycle addition to dataout
+# bit10 :  0  , 1/4 clock cycle skew enabled for addr/ctl signals
+# bit11 :  0  , 1/4 clock cycle skew disabled for write mesh
+# bit15-12: 1111 required
+# bit31-16: 0    required
+
+DATA 0xffd01428 0x00085520	# DDR2 ODT Read Timing (default values)
+DATA 0xffd0147c 0x00008552	# DDR2 ODT Write Timing (default values)
+
+DATA 0xFFD01500 0x00000000	# CS[0]n Base address to 0x0
+DATA 0xFFD01504 0x07FFFFF1	# CS[0]n Size
+# bit0:    1,  Window enabled
+# bit1:    0,  Write Protect disabled
+# bit3-2:  00, CS0 hit selected
+# bit23-4: ones, required
+# bit31-24: 0x07, Size (i.e. 128MB)
+
+DATA 0xFFD0150C 0x00000000	# CS[1]n Size, window disabled
+DATA 0xFFD01514 0x00000000	# CS[2]n Size, window disabled
+DATA 0xFFD0151C 0x00000000	# CS[3]n Size, window disabled
+
+DATA 0xffd01494 0x00030000	#  DDR ODT Control (Low)		 (DONE)
+# bit3-0:  2, ODT0Rd, MODT[0] asserted during read from DRAM CS1
+# bit7-4:  1, ODT0Rd, MODT[0] asserted during read from DRAM CS0
+# bit19-16:2, ODT0Wr, MODT[0] asserted during write to DRAM CS1
+# bit23-20:1, ODT0Wr, MODT[0] asserted during write to DRAM CS0
+
+DATA 0xffd01498 0x00000000	#  DDR ODT Control (High)  (DONE)
+# bit1-0:  00, ODT0 controlled by ODT Control (low) register above
+# bit3-2:  01, ODT1 active NEVER!
+# bit31-4: zero, required
+
+DATA 0xffd0149c 0x0000e803	# CPU ODT Control	 (DONE)
+DATA 0xffd01480 0x00000001	# DDR Initialization Control	 (DONE)
+#bit0=1, enable DDR init upon this register write
+
+# End of Header extension
+DATA 0x0 0x0
diff --git a/board/cloudengines/pogo_v4/pogo_v4.c b/board/cloudengines/pogo_v4/pogo_v4.c
new file mode 100644
index 0000000000..c85de0b22e
--- /dev/null
+++ b/board/cloudengines/pogo_v4/pogo_v4.c
@@ -0,0 +1,220 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014-2021 Tony Dinh <mibodhi@gmail.com>
+ *
+ * Based on
+ * Copyright (C) 2012 David Purdy <david.c.purdy@gmail.com>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <asm/arch/mpp.h>
+#include <asm/io.h>
+#include <asm/arch/gpio.h>
+#include <asm/mach-types.h>
+#include <bootstage.h>
+#include <command.h>
+#include <init.h>
+#include <linux/bitops.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* GPIO configuration */
+#define POGO_V4_OE_LOW				(~(0))
+#define POGO_V4_OE_HIGH				(~(0))
+#define POGO_V4_OE_VAL_LOW			BIT(29)
+#define POGO_V4_OE_VAL_HIGH			0
+
+/* PHY related */
+#define MV88E1116_LED_FCTRL_REG			10
+#define MV88E1116_CPRSP_CR3_REG			21
+#define MV88E1116_MAC_CTRL_REG			21
+#define MV88E1116_PGADR_REG			22
+#define MV88E1116_RGMII_TXTM_CTRL		BIT(4)
+#define MV88E1116_RGMII_RXTM_CTRL		BIT(5)
+
+/* button */
+#define BTN_EJECT				29
+
+int board_early_init_f(void)
+{
+	/*
+	 * default gpio configuration
+	 * There are maximum 64 gpios controlled through 2 sets of registers
+	 * the  below configuration configures mainly initial LED status
+	 */
+	mvebu_config_gpio(POGO_V4_OE_VAL_LOW,
+			  POGO_V4_OE_VAL_HIGH,
+			  POGO_V4_OE_LOW, POGO_V4_OE_HIGH);
+
+	/* Multi-Purpose Pins Functionality configuration */
+	u32 kwmpp_config[] = {
+		MPP0_NF_IO2,
+		MPP1_NF_IO3,
+		MPP2_NF_IO4,
+		MPP3_NF_IO5,
+		MPP4_NF_IO6,
+		MPP5_NF_IO7,
+		MPP6_SYSRST_OUTn,
+		MPP7_GPO,
+		MPP8_TW_SDA,
+		MPP9_TW_SCK,
+		MPP10_UART0_TXD,
+		MPP11_UART0_RXD,
+		MPP12_SD_CLK,
+		MPP13_SD_CMD,
+		MPP14_SD_D0,
+		MPP15_SD_D1,
+		MPP16_SD_D2,
+		MPP17_SD_D3,
+		MPP18_NF_IO0,
+		MPP19_NF_IO1,
+		MPP20_SATA1_ACTn,
+		MPP21_SATA0_ACTn,
+		MPP22_GPIO,	/* Green LED */
+		MPP23_GPIO,
+		MPP24_GPIO,	/* Red LED */
+		MPP25_GPIO,
+		MPP26_GPIO,
+		MPP27_GPIO,
+		MPP28_GPIO,
+		MPP29_GPIO,	/* Eject button */
+		MPP30_GPIO,
+		MPP31_GPIO,
+		MPP32_GPIO,
+		MPP33_GPIO,
+		MPP34_GPIO,
+		MPP35_GPIO,	/* FR6192 has only 36 GPIOs */
+		0
+	};
+	kirkwood_mpp_conf(kwmpp_config, NULL);
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	/* Do late init to ensure successful enumeration of XHCI devices */
+	pci_init();
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Boot parameters address */
+	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+	return 0;
+}
+
+int fdt_get_phy_addr(const char *path)
+{
+	const void *fdt = gd->fdt_blob;
+	const u32 *reg;
+	const u32 *val;
+	int node, phandle, addr;
+
+	/* Find the node by its full path */
+	node = fdt_path_offset(fdt, path);
+	if (node >= 0) {
+		/* Look up phy-handle */
+		val = fdt_getprop(fdt, node, "phy-handle", NULL);
+		if (!val) {
+			/* Look up phy (deprecated property for phy handle) */
+			val = fdt_getprop(fdt, node, "phy", NULL);
+		}
+		if (val) {
+			phandle = fdt32_to_cpu(*val);
+			if (!phandle)
+				return -FDT_ERR_NOTFOUND;
+
+			/* Follow it to its node */
+			node = fdt_node_offset_by_phandle(fdt, phandle);
+			if (node) {
+				/* Look up reg */
+				reg = fdt_getprop(fdt, node, "reg", NULL);
+				if (reg) {
+					addr = fdt32_to_cpu(*reg);
+					return addr;
+				}
+			}
+		}
+	}
+	return -FDT_ERR_NOTFOUND;
+}
+
+#if defined(CONFIG_RESET_PHY_R)
+/* Configure and initialize PHY */
+void reset_phy(void)
+{
+	u16 reg;
+	int phyaddr;
+	char *name = "ethernet-controller@72000";
+	char *eth0_path = "/ocp@f1000000/ethernet-controller@72000";
+
+	if (miiphy_set_current_dev(name))
+		return;
+
+	phyaddr = fdt_get_phy_addr(eth0_path);
+	if (phyaddr < 0)
+		return;
+
+	/*
+	 * Enable RGMII delay on Tx and Rx for CPU port
+	 * Ref: sec 4.7.2 of chip datasheet
+	 */
+	miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
+	miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
+	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
+	miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
+	miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
+
+	/* reset the phy */
+	miiphy_reset(name, phyaddr);
+
+	printf("88E1116 Initialized on %s\n", name);
+}
+#endif /* CONFIG_RESET_PHY_R */
+
+#if CONFIG_IS_ENABLED(BOOTSTAGE)
+#define GREEN_LED	BIT(22)
+#define RED_LED		BIT(24)
+#define BOTH_LEDS	(GREEN_LED | RED_LED)
+#define NEITHER_LED	0
+
+static void set_leds(u32 leds, u32 blinking)
+{
+	struct kwgpio_registers *r;
+	u32 oe;
+	u32 bl;
+
+	r = (struct kwgpio_registers *)MVEBU_GPIO0_BASE;
+	oe = readl(&r->oe) | BOTH_LEDS;
+	writel(oe & ~leds, &r->oe);	/* active low */
+	bl = readl(&r->blink_en) & ~BOTH_LEDS;
+	writel(bl | blinking, &r->blink_en);
+}
+
+void show_boot_progress(int val)
+{
+	switch (val) {
+	case BOOTSTAGE_ID_RUN_OS:		/* booting Linux */
+		set_leds(BOTH_LEDS, NEITHER_LED);
+		break;
+	case BOOTSTAGE_ID_NET_ETH_START:	/* Ethernet initialization */
+		set_leds(GREEN_LED, GREEN_LED);
+		break;
+	default:
+		if (val < 0)	/* error */
+			set_leds(RED_LED, RED_LED);
+		break;
+	}
+}
+#endif
-- 
2.30.2

[PATCH v4 4/4] arm: kirkwood: Pogoplug V4 : Add board include header and defconfig files

[Tony Dinh]

Add board include header and defconfig files for Pogoplug V4

Signed-off-by: Tony Dinh <mibodhi@gmail.com>
---

Changes in v4:
- Remove CONFIG_FEATURE_COMMAND_EDITING and ifdefs for CMD_NET
in include header

Changes in v3:
- Migrate config symbols from board include header to defconfig
- Remove obsolete config symbols from header file
- Don't use ifdefs for unselectable config symbols in header file

Changes in v2:
- Use canonical format for defconfig file

 configs/pogo_v4_defconfig | 79 +++++++++++++++++++++++++++++++++++++++
 include/configs/pogo_v4.h | 53 ++++++++++++++++++++++++++
 2 files changed, 132 insertions(+)
 create mode 100644 configs/pogo_v4_defconfig
 create mode 100644 include/configs/pogo_v4.h

diff --git a/configs/pogo_v4_defconfig b/configs/pogo_v4_defconfig
new file mode 100644
index 0000000000..5490067b9e
--- /dev/null
+++ b/configs/pogo_v4_defconfig
@@ -0,0 +1,79 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_SYS_DCACHE_OFF=y
+CONFIG_ARCH_CPU_INIT=y
+CONFIG_SYS_THUMB_BUILD=y
+CONFIG_ARCH_KIRKWOOD=y
+CONFIG_SYS_KWD_CONFIG="board/cloudengines/pogo_v4/kwbimage.cfg"
+CONFIG_SYS_TEXT_BASE=0x600000
+CONFIG_TARGET_POGO_V4=y
+CONFIG_ENV_SIZE=0x20000
+CONFIG_ENV_OFFSET=0xC0000
+CONFIG_DEFAULT_DEVICE_TREE="kirkwood-pogoplug-series-4"
+CONFIG_IDENT_STRING="\nPogoplug V4"
+CONFIG_SYS_LOAD_ADDR=0x800000
+CONFIG_BOOTSTAGE=y
+CONFIG_SHOW_BOOT_PROGRESS=y
+CONFIG_BOOTDELAY=10
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="setenv bootargs ${bootargs_console}; run bootcmd_usb; bootm 0x00800000 0x01100000 0x2c00000"
+CONFIG_USE_PREBOOT=y
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="Pogo_V4> "
+CONFIG_CMD_BOOTZ=y
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_NAND=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_SATA=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_SNTP=y
+CONFIG_CMD_DNS=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_JFFS2=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nand0=orion_nand"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:2M(u-boot),3M(uImage),3M(uImage2),8M(failsafe),112M(root)"
+CONFIG_CMD_UBI=y
+CONFIG_ISO_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_NAND=y
+CONFIG_VERSION_VARIABLE=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_NETCONSOLE=y
+CONFIG_DM=y
+CONFIG_SATA_MV=y
+CONFIG_KIRKWOOD_GPIO=y
+# CONFIG_MMC_HW_PARTITIONING is not set
+CONFIG_MVEBU_MMC=y
+CONFIG_MTD=y
+CONFIG_MTD_RAW_NAND=y
+CONFIG_DM_ETH=y
+CONFIG_MVGBE=y
+CONFIG_MII=y
+CONFIG_PCI=y
+CONFIG_PCI_MVEBU=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_EMULATION=y
+CONFIG_SYS_NS16550=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PCI=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_JFFS2_LZO=y
+CONFIG_JFFS2_NAND=y
diff --git a/include/configs/pogo_v4.h b/include/configs/pogo_v4.h
new file mode 100644
index 0000000000..0c51343637
--- /dev/null
+++ b/include/configs/pogo_v4.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2014-2022 Tony Dinh <mibodhi@gmail.com>
+ *
+ * Based on
+ * Copyright (C) 2012
+ * David Purdy <david.c.purdy@gmail.com>
+ *
+ * Based on Kirkwood support:
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ */
+
+#ifndef _CONFIG_POGO_V4_H
+#define _CONFIG_POGO_V4_H
+
+/*
+ * mv-common.h should be defined after CMD configs since it used them
+ * to enable certain macros
+ */
+#include "mv-common.h"
+
+/*
+ * Default environment variables
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"dtb_file=/boot/dts/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+	"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0"\
+	"mtdids=nand0=orion_nand\0"\
+	"bootargs_console=console=ttyS0,115200\0" \
+	"bootcmd_usb=usb start; load usb 0:1 0x00800000 /boot/uImage; " \
+	"load usb 0:1 0x01100000 /boot/uInitrd; " \
+	"load usb 0:1 0x2c00000 $dtb_file\0"
+
+/*
+ * Ethernet Driver configuration
+ */
+#define CONFIG_MVGBE_PORTS	{1, 0}	/* enable port 0 only */
+#define CONFIG_PHY_BASE_ADR	0
+
+/*
+ *  SATA Driver configuration
+ */
+#define CONFIG_SYS_SATA_MAX_DEVICE	1
+
+/*
+ * Support large disk for SATA and USB
+ */
+#define CONFIG_SYS_64BIT_LBA
+#define CONFIG_LBA48
+
+#endif /* _CONFIG_POGO_V4_H */
-- 
2.30.2

Re: [PATCH v4 3/4] arm: kirkwood: Pogoplug-V4 : Add board implementation files

[Pali Rohár]

On Thursday 20 January 2022 17:50:54 Tony Dinh wrote:
> diff --git a/board/cloudengines/pogo_v4/pogo_v4.c b/board/cloudengines/pogo_v4/pogo_v4.c
> new file mode 100644
> index 0000000000..c85de0b22e
> --- /dev/null
> +++ b/board/cloudengines/pogo_v4/pogo_v4.c
> +int fdt_get_phy_addr(const char *path)
> +{
> +	const void *fdt = gd->fdt_blob;
> +	const u32 *reg;
> +	const u32 *val;
> +	int node, phandle, addr;
> +
> +	/* Find the node by its full path */
> +	node = fdt_path_offset(fdt, path);
> +	if (node >= 0) {
> +		/* Look up phy-handle */
> +		val = fdt_getprop(fdt, node, "phy-handle", NULL);
> +		if (!val) {
> +			/* Look up phy (deprecated property for phy handle) */
> +			val = fdt_getprop(fdt, node, "phy", NULL);
> +		}
> +		if (val) {
> +			phandle = fdt32_to_cpu(*val);
> +			if (!phandle)
> +				return -FDT_ERR_NOTFOUND;
> +
> +			/* Follow it to its node */
> +			node = fdt_node_offset_by_phandle(fdt, phandle);
> +			if (node) {
> +				/* Look up reg */
> +				reg = fdt_getprop(fdt, node, "reg", NULL);
> +				if (reg) {
> +					addr = fdt32_to_cpu(*reg);
> +					return addr;
> +				}
> +			}
> +		}
> +	}
> +	return -FDT_ERR_NOTFOUND;
> +}
> +
> +#if defined(CONFIG_RESET_PHY_R)
> +/* Configure and initialize PHY */
> +void reset_phy(void)
> +{
> +	u16 reg;
> +	int phyaddr;
> +	char *name = "ethernet-controller@72000";
> +	char *eth0_path = "/ocp@f1000000/ethernet-controller@72000";

Hello! I would suggest to avoid hardcoding DT node names and DT node
paths into source code.

How to avoid it?

In DTS file define alias "ethernet0" as alias to eth0 node:

	aliases {
		ethernet0 = &eth0;
	};

(just before memory {} node)

&eth0 label is already defined in arch/arm/dts/kirkwood.dtsi.

Function fdt_path_offset() understands either full path or alias. So you
can call fdt_get_phy_addr("ethernet0").

And to get node name you can use function fdt_get_name() which takes
node offset - return value of fdt_path_offset().

And maybe... to avoid calling fdt_path_offset() two times, you may
adjust fdt_get_phy_addr() to directly take node offset (not path/alias).

So something like this:

    node = fdt_path_offset(gd->fdt_blob, "ethernet0");
    ... error checking ...
    name = fdt_get_name(gd->fdt_blob, node, NULL);
    ... error checking ...
    miiphy_set_current_dev(name);
    ... error checking ...
    fdt_get_phy_addr(node);
    ... error checking ...


> +	if (miiphy_set_current_dev(name))
> +		return;
> +
> +	phyaddr = fdt_get_phy_addr(eth0_path);
> +	if (phyaddr < 0)
> +		return;
> +
> +	/*
> +	 * Enable RGMII delay on Tx and Rx for CPU port
> +	 * Ref: sec 4.7.2 of chip datasheet
> +	 */
> +	miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
> +	miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
> +	reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
> +	miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
> +	miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
> +
> +	/* reset the phy */
> +	miiphy_reset(name, phyaddr);
> +
> +	printf("88E1116 Initialized on %s\n", name);
> +}

Re: [PATCH v4 3/4] arm: kirkwood: Pogoplug-V4 : Add board implementation files

[Tony Dinh]

Hi Pali and Stefan,

On Fri, Jan 21, 2022 at 2:01 AM Pali Rohár <pali@kernel.org> wrote:
>
> On Thursday 20 January 2022 17:50:54 Tony Dinh wrote:
> > diff --git a/board/cloudengines/pogo_v4/pogo_v4.c b/board/cloudengines/pogo_v4/pogo_v4.c
> > new file mode 100644
> > index 0000000000..c85de0b22e
> > --- /dev/null
> > +++ b/board/cloudengines/pogo_v4/pogo_v4.c
> > +int fdt_get_phy_addr(const char *path)
> > +{
> > +     const void *fdt = gd->fdt_blob;
> > +     const u32 *reg;
> > +     const u32 *val;
> > +     int node, phandle, addr;
> > +
> > +     /* Find the node by its full path */
> > +     node = fdt_path_offset(fdt, path);
> > +     if (node >= 0) {
> > +             /* Look up phy-handle */
> > +             val = fdt_getprop(fdt, node, "phy-handle", NULL);
> > +             if (!val) {
> > +                     /* Look up phy (deprecated property for phy handle) */
> > +                     val = fdt_getprop(fdt, node, "phy", NULL);
> > +             }
> > +             if (val) {
> > +                     phandle = fdt32_to_cpu(*val);
> > +                     if (!phandle)
> > +                             return -FDT_ERR_NOTFOUND;
> > +
> > +                     /* Follow it to its node */
> > +                     node = fdt_node_offset_by_phandle(fdt, phandle);
> > +                     if (node) {
> > +                             /* Look up reg */
> > +                             reg = fdt_getprop(fdt, node, "reg", NULL);
> > +                             if (reg) {
> > +                                     addr = fdt32_to_cpu(*reg);
> > +                                     return addr;
> > +                             }
> > +                     }
> > +             }
> > +     }
> > +     return -FDT_ERR_NOTFOUND;
> > +}
> > +
> > +#if defined(CONFIG_RESET_PHY_R)
> > +/* Configure and initialize PHY */
> > +void reset_phy(void)
> > +{
> > +     u16 reg;
> > +     int phyaddr;
> > +     char *name = "ethernet-controller@72000";
> > +     char *eth0_path = "/ocp@f1000000/ethernet-controller@72000";
>
> Hello! I would suggest to avoid hardcoding DT node names and DT node
> paths into source code.
>
> How to avoid it?
>
> In DTS file define alias "ethernet0" as alias to eth0 node:
>
>         aliases {
>                 ethernet0 = &eth0;
>         };
>
> (just before memory {} node)
>
> &eth0 label is already defined in arch/arm/dts/kirkwood.dtsi.
>
> Function fdt_path_offset() understands either full path or alias. So you
> can call fdt_get_phy_addr("ethernet0").
>
> And to get node name you can use function fdt_get_name() which takes
> node offset - return value of fdt_path_offset().
>
> And maybe... to avoid calling fdt_path_offset() two times, you may
> adjust fdt_get_phy_addr() to directly take node offset (not path/alias).

Pali,
Thanks for your suggestion and reviewing this fdt_get_phy_addr()
function. However, this function will be removed. See my followup post
in the V3 patch thread about the uclass MVGBE.

https://lists.denx.de/pipermail/u-boot/2022-January/472691.html

Stefan,
Perhaps I should send in a v5 patch series for this board now (instead
of reworking this file in a separate patch)? I've tested the uclass
MVGBE in this board and it is working as I expected.

Thank,
Tony


>
> So something like this:
>
>     node = fdt_path_offset(gd->fdt_blob, "ethernet0");
>     ... error checking ...
>     name = fdt_get_name(gd->fdt_blob, node, NULL);
>     ... error checking ...
>     miiphy_set_current_dev(name);
>     ... error checking ...
>     fdt_get_phy_addr(node);
>     ... error checking ...
>
>
> > +     if (miiphy_set_current_dev(name))
> > +             return;
> > +
> > +     phyaddr = fdt_get_phy_addr(eth0_path);
> > +     if (phyaddr < 0)
> > +             return;
> > +
> > +     /*
> > +      * Enable RGMII delay on Tx and Rx for CPU port
> > +      * Ref: sec 4.7.2 of chip datasheet
> > +      */
> > +     miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
> > +     miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
> > +     reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
> > +     miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
> > +     miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
> > +
> > +     /* reset the phy */
> > +     miiphy_reset(name, phyaddr);
> > +
> > +     printf("88E1116 Initialized on %s\n", name);
> > +}

Re: [PATCH v4 3/4] arm: kirkwood: Pogoplug-V4 : Add board implementation files

[Tony Dinh]

Hi Pali,

On Fri, Jan 21, 2022 at 1:33 PM Tony Dinh <mibodhi@gmail.com> wrote:
>
> Hi Pali and Stefan,
>
> On Fri, Jan 21, 2022 at 2:01 AM Pali Rohár <pali@kernel.org> wrote:
> >
> > On Thursday 20 January 2022 17:50:54 Tony Dinh wrote:
> > > diff --git a/board/cloudengines/pogo_v4/pogo_v4.c b/board/cloudengines/pogo_v4/pogo_v4.c
> > > new file mode 100644
> > > index 0000000000..c85de0b22e
> > > --- /dev/null
> > > +++ b/board/cloudengines/pogo_v4/pogo_v4.c
> > > +int fdt_get_phy_addr(const char *path)
> > > +{
> > > +     const void *fdt = gd->fdt_blob;
> > > +     const u32 *reg;
> > > +     const u32 *val;
> > > +     int node, phandle, addr;
> > > +
> > > +     /* Find the node by its full path */
> > > +     node = fdt_path_offset(fdt, path);
> > > +     if (node >= 0) {
> > > +             /* Look up phy-handle */
> > > +             val = fdt_getprop(fdt, node, "phy-handle", NULL);
> > > +             if (!val) {
> > > +                     /* Look up phy (deprecated property for phy handle) */
> > > +                     val = fdt_getprop(fdt, node, "phy", NULL);
> > > +             }
> > > +             if (val) {
> > > +                     phandle = fdt32_to_cpu(*val);
> > > +                     if (!phandle)
> > > +                             return -FDT_ERR_NOTFOUND;
> > > +
> > > +                     /* Follow it to its node */
> > > +                     node = fdt_node_offset_by_phandle(fdt, phandle);
> > > +                     if (node) {
> > > +                             /* Look up reg */
> > > +                             reg = fdt_getprop(fdt, node, "reg", NULL);
> > > +                             if (reg) {
> > > +                                     addr = fdt32_to_cpu(*reg);
> > > +                                     return addr;
> > > +                             }
> > > +                     }
> > > +             }
> > > +     }
> > > +     return -FDT_ERR_NOTFOUND;
> > > +}
> > > +
> > > +#if defined(CONFIG_RESET_PHY_R)
> > > +/* Configure and initialize PHY */
> > > +void reset_phy(void)
> > > +{
> > > +     u16 reg;
> > > +     int phyaddr;
> > > +     char *name = "ethernet-controller@72000";
> > > +     char *eth0_path = "/ocp@f1000000/ethernet-controller@72000";
> >
> > Hello! I would suggest to avoid hardcoding DT node names and DT node
> > paths into source code.
> >
> > How to avoid it?
> >
> > In DTS file define alias "ethernet0" as alias to eth0 node:
> >
> >         aliases {
> >                 ethernet0 = &eth0;
> >         };
> >
> > (just before memory {} node)
> >
> > &eth0 label is already defined in arch/arm/dts/kirkwood.dtsi.
> >
> > Function fdt_path_offset() understands either full path or alias. So you
> > can call fdt_get_phy_addr("ethernet0").
> >
> > And to get node name you can use function fdt_get_name() which takes
> > node offset - return value of fdt_path_offset().
> >
> > And maybe... to avoid calling fdt_path_offset() two times, you may
> > adjust fdt_get_phy_addr() to directly take node offset (not path/alias).
>
> Pali,
> Thanks for your suggestion and reviewing this fdt_get_phy_addr()
> function. However, this function will be removed. See my followup post
> in the V3 patch thread about the uclass MVGBE.
>
> https://lists.denx.de/pipermail/u-boot/2022-January/472691.html
>
> Stefan,
> Perhaps I should send in a v5 patch series for this board now (instead
> of reworking this file in a separate patch)? I've tested the uclass
> MVGBE in this board and it is working as I expected.
>

Here is the test using mvgbe uclass. I've added some debug printfs to
see what the calling sequence is.

<BEGIN log>
U-Boot 2022.01-00673-g70fe7827f2-dirty (Jan 22 2022 - 00:09:05 -0800)
Pogoplug V4

SoC:   Kirkwood 88F6281_A1
Model: Cloud Engines PogoPlug Series 4
DRAM:  128 MiB
Core:  11 devices, 10 uclasses, devicetree: separate
NAND:  128 MiB
MMC:   mvsdio@90000: 0
Loading Environment from NAND... OK
In:    serial
Out:   serial
Err:   serial
pcie0.0: Link up
Net:   mvgbe_of_to_plat
mvgbe_of_to_plat phy-mode 1
mvgbe_probe
eth0: ethernet-controller@72000
Hit any key to stop autoboot:  0

Pogo_V4> ping 192.168.0.1
mvgbe_start UCLASS_ETH  mvgbe
mvgbe_start PHY addr 0
__mvgbe_phy_init phy_interface = gmii
phy_config
phy.c board_phy_config
phy.c board_phy_config calling default phydev->drv->config
phy.c genphy_config
ethernet-controller@72000 Waiting for PHY auto negotiation to
complete....... done
Using ethernet-controller@72000 device
host 192.168.0.1 is alive
<END log>

So the network bringup is purely based on the DTS. None of the
marvell.c driver config is involved (i.e genphy_config function is
where the configuration occurs). It is currently working fine with
gmii phy-mode. So to get rgmii, we'll just need to add a phy-mode =
"rgmii" property to the eth0 node in the DTS.

All this to say is I'm happy that I can remove a lot of code in
pogo_v4.c, and not have to patch anything in the common area like FDT
or network PHY.

Thanks,
Tony



> Thank,
> Tony
>
>
> >
> > So something like this:
> >
> >     node = fdt_path_offset(gd->fdt_blob, "ethernet0");
> >     ... error checking ...
> >     name = fdt_get_name(gd->fdt_blob, node, NULL);
> >     ... error checking ...
> >     miiphy_set_current_dev(name);
> >     ... error checking ...
> >     fdt_get_phy_addr(node);
> >     ... error checking ...
> >
> >
> > > +     if (miiphy_set_current_dev(name))
> > > +             return;
> > > +
> > > +     phyaddr = fdt_get_phy_addr(eth0_path);
> > > +     if (phyaddr < 0)
> > > +             return;
> > > +
> > > +     /*
> > > +      * Enable RGMII delay on Tx and Rx for CPU port
> > > +      * Ref: sec 4.7.2 of chip datasheet
> > > +      */
> > > +     miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
> > > +     miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, &reg);
> > > +     reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
> > > +     miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
> > > +     miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
> > > +
> > > +     /* reset the phy */
> > > +     miiphy_reset(name, phyaddr);
> > > +
> > > +     printf("88E1116 Initialized on %s\n", name);
> > > +}