* [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller
@ 2020-12-12 13:08 Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings Dongjiu Geng
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:08 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
v5->v6:
1. Drop #size-cells and #address-cell in the hisilicon,hi3559av100-clock.yaml
2. Add discription for #reset-cells in the hisilicon,hi3559av100-clock.yaml
3. Remove #clock-cells in hisilicon,hiedmacv310.yaml
4. Merge property misc_ctrl_base and misc_regmap together for hiedmacv310 driver
v4->v5:
1. change the patch author mail name
v3->v4:
1. fix the 'make dt_binding_check' issues.
2. Combine the 'Enable HiSilicon Hiedma Controller' series patches to this series.
3. fix the 'make dt_binding_check' issues in 'Enable HiSilicon Hiedma Controller' patchset
v2->v3:
1. change dt-bindings documents from txt to yaml format.
2. Add SHUB clock to access the devices of m7
Dongjiu Geng (4):
dt-bindings: Document the hi3559a clock bindings
clk: hisilicon: Add clock driver for hi3559A SoC
dt: bindings: dma: Add DT bindings for HiSilicon Hiedma Controller
dmaengine: dma: Add Hiedma Controller v310 Device Driver
.../clock/hisilicon,hi3559av100-clock.yaml | 59 +
.../bindings/dma/hisilicon,hiedmacv310.yaml | 94 ++
drivers/clk/hisilicon/Kconfig | 7 +
drivers/clk/hisilicon/Makefile | 1 +
drivers/clk/hisilicon/clk-hi3559a.c | 865 ++++++++++
drivers/dma/Kconfig | 14 +
drivers/dma/Makefile | 1 +
drivers/dma/hiedmacv310.c | 1442 +++++++++++++++++
drivers/dma/hiedmacv310.h | 136 ++
include/dt-bindings/clock/hi3559av100-clock.h | 165 ++
10 files changed, 2784 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
create mode 100644 Documentation/devicetree/bindings/dma/hisilicon,hiedmacv310.yaml
create mode 100644 drivers/clk/hisilicon/clk-hi3559a.c
create mode 100644 drivers/dma/hiedmacv310.c
create mode 100644 drivers/dma/hiedmacv310.h
create mode 100644 include/dt-bindings/clock/hi3559av100-clock.h
--
2.17.1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings
2020-12-12 13:08 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
@ 2020-12-12 13:08 ` Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 2/4] clk: hisilicon: Add clock driver for hi3559A SoC Dongjiu Geng
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:08 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
Add DT bindings documentation for hi3559a SoC clock.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
.../clock/hisilicon,hi3559av100-clock.yaml | 59 +++++++
include/dt-bindings/clock/hi3559av100-clock.h | 165 ++++++++++++++++++
2 files changed, 224 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
create mode 100644 include/dt-bindings/clock/hi3559av100-clock.h
diff --git a/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml b/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
new file mode 100644
index 000000000000..3ceb29cec704
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/hisilicon,hi3559av100-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon SOC Clock for HI3559AV100
+
+maintainers:
+ - Dongjiu Geng <gengdongjiu@huawei.com>
+
+description: |
+ Hisilicon SOC clock control module which supports the clocks, resets and
+ power domains on HI3559AV100.
+
+ See also:
+ dt-bindings/clock/hi3559av100-clock.h
+
+properties:
+ compatible:
+ enum:
+ - hisilicon,hi3559av100-clock
+ - hisilicon,hi3559av100-shub-clock
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 2
+ description: |
+ First cell is reset request register offset.
+ Second cell is bit offset in reset request register.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@12010000 {
+ compatible = "hisilicon,hi3559av100-clock";
+ #clock-cells = <1>;
+ #reset-cells = <2>;
+ reg = <0x0 0x12010000 0x0 0x10000>;
+ };
+ };
+...
diff --git a/include/dt-bindings/clock/hi3559av100-clock.h b/include/dt-bindings/clock/hi3559av100-clock.h
new file mode 100644
index 000000000000..5fe7689010a0
--- /dev/null
+++ b/include/dt-bindings/clock/hi3559av100-clock.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later or BSD-2-Clause */
+/*
+ * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ */
+
+#ifndef __DTS_HI3559AV100_CLOCK_H
+#define __DTS_HI3559AV100_CLOCK_H
+
+/* fixed rate */
+#define HI3559AV100_FIXED_1188M 1
+#define HI3559AV100_FIXED_1000M 2
+#define HI3559AV100_FIXED_842M 3
+#define HI3559AV100_FIXED_792M 4
+#define HI3559AV100_FIXED_750M 5
+#define HI3559AV100_FIXED_710M 6
+#define HI3559AV100_FIXED_680M 7
+#define HI3559AV100_FIXED_667M 8
+#define HI3559AV100_FIXED_631M 9
+#define HI3559AV100_FIXED_600M 10
+#define HI3559AV100_FIXED_568M 11
+#define HI3559AV100_FIXED_500M 12
+#define HI3559AV100_FIXED_475M 13
+#define HI3559AV100_FIXED_428M 14
+#define HI3559AV100_FIXED_400M 15
+#define HI3559AV100_FIXED_396M 16
+#define HI3559AV100_FIXED_300M 17
+#define HI3559AV100_FIXED_250M 18
+#define HI3559AV100_FIXED_198M 19
+#define HI3559AV100_FIXED_187p5M 20
+#define HI3559AV100_FIXED_150M 21
+#define HI3559AV100_FIXED_148p5M 22
+#define HI3559AV100_FIXED_125M 23
+#define HI3559AV100_FIXED_107M 24
+#define HI3559AV100_FIXED_100M 25
+#define HI3559AV100_FIXED_99M 26
+#define HI3559AV100_FIXED_74p25M 27
+#define HI3559AV100_FIXED_72M 28
+#define HI3559AV100_FIXED_60M 29
+#define HI3559AV100_FIXED_54M 30
+#define HI3559AV100_FIXED_50M 31
+#define HI3559AV100_FIXED_49p5M 32
+#define HI3559AV100_FIXED_37p125M 33
+#define HI3559AV100_FIXED_36M 34
+#define HI3559AV100_FIXED_32p4M 35
+#define HI3559AV100_FIXED_27M 36
+#define HI3559AV100_FIXED_25M 37
+#define HI3559AV100_FIXED_24M 38
+#define HI3559AV100_FIXED_12M 39
+#define HI3559AV100_FIXED_3M 40
+#define HI3559AV100_FIXED_1p6M 41
+#define HI3559AV100_FIXED_400K 42
+#define HI3559AV100_FIXED_100K 43
+#define HI3559AV100_FIXED_200M 44
+#define HI3559AV100_FIXED_75M 75
+
+#define HI3559AV100_I2C0_CLK 50
+#define HI3559AV100_I2C1_CLK 51
+#define HI3559AV100_I2C2_CLK 52
+#define HI3559AV100_I2C3_CLK 53
+#define HI3559AV100_I2C4_CLK 54
+#define HI3559AV100_I2C5_CLK 55
+#define HI3559AV100_I2C6_CLK 56
+#define HI3559AV100_I2C7_CLK 57
+#define HI3559AV100_I2C8_CLK 58
+#define HI3559AV100_I2C9_CLK 59
+#define HI3559AV100_I2C10_CLK 60
+#define HI3559AV100_I2C11_CLK 61
+
+#define HI3559AV100_SPI0_CLK 62
+#define HI3559AV100_SPI1_CLK 63
+#define HI3559AV100_SPI2_CLK 64
+#define HI3559AV100_SPI3_CLK 65
+#define HI3559AV100_SPI4_CLK 66
+#define HI3559AV100_SPI5_CLK 67
+#define HI3559AV100_SPI6_CLK 68
+
+#define HI3559AV100_EDMAC_CLK 69
+#define HI3559AV100_EDMAC_AXICLK 70
+#define HI3559AV100_EDMAC1_CLK 71
+#define HI3559AV100_EDMAC1_AXICLK 72
+#define HI3559AV100_VDMAC_CLK 73
+
+/* mux clocks */
+#define HI3559AV100_FMC_MUX 80
+#define HI3559AV100_SYSAPB_MUX 81
+#define HI3559AV100_UART_MUX 82
+#define HI3559AV100_SYSBUS_MUX 83
+#define HI3559AV100_A73_MUX 84
+#define HI3559AV100_MMC0_MUX 85
+#define HI3559AV100_MMC1_MUX 86
+#define HI3559AV100_MMC2_MUX 87
+#define HI3559AV100_MMC3_MUX 88
+
+/* gate clocks */
+#define HI3559AV100_FMC_CLK 90
+#define HI3559AV100_UART0_CLK 91
+#define HI3559AV100_UART1_CLK 92
+#define HI3559AV100_UART2_CLK 93
+#define HI3559AV100_UART3_CLK 94
+#define HI3559AV100_UART4_CLK 95
+#define HI3559AV100_MMC0_CLK 96
+#define HI3559AV100_MMC1_CLK 97
+#define HI3559AV100_MMC2_CLK 98
+#define HI3559AV100_MMC3_CLK 99
+
+#define HI3559AV100_ETH_CLK 100
+#define HI3559AV100_ETH_MACIF_CLK 101
+#define HI3559AV100_ETH1_CLK 102
+#define HI3559AV100_ETH1_MACIF_CLK 103
+
+/* complex */
+#define HI3559AV100_MAC0_CLK 110
+#define HI3559AV100_MAC1_CLK 111
+#define HI3559AV100_SATA_CLK 112
+#define HI3559AV100_USB_CLK 113
+#define HI3559AV100_USB1_CLK 114
+
+/* pll clocks */
+#define HI3559AV100_APLL_CLK 250
+#define HI3559AV100_GPLL_CLK 251
+
+#define HI3559AV100_CRG_NR_CLKS 256
+
+#define HI3559AV100_SHUB_SOURCE_SOC_24M 0
+#define HI3559AV100_SHUB_SOURCE_SOC_200M 1
+#define HI3559AV100_SHUB_SOURCE_SOC_300M 2
+#define HI3559AV100_SHUB_SOURCE_PLL 3
+#define HI3559AV100_SHUB_SOURCE_CLK 4
+
+#define HI3559AV100_SHUB_I2C0_CLK 10
+#define HI3559AV100_SHUB_I2C1_CLK 11
+#define HI3559AV100_SHUB_I2C2_CLK 12
+#define HI3559AV100_SHUB_I2C3_CLK 13
+#define HI3559AV100_SHUB_I2C4_CLK 14
+#define HI3559AV100_SHUB_I2C5_CLK 15
+#define HI3559AV100_SHUB_I2C6_CLK 16
+#define HI3559AV100_SHUB_I2C7_CLK 17
+
+#define HI3559AV100_SHUB_SPI_SOURCE_CLK 20
+#define HI3559AV100_SHUB_SPI4_SOURCE_CLK 21
+#define HI3559AV100_SHUB_SPI0_CLK 22
+#define HI3559AV100_SHUB_SPI1_CLK 23
+#define HI3559AV100_SHUB_SPI2_CLK 24
+#define HI3559AV100_SHUB_SPI3_CLK 25
+#define HI3559AV100_SHUB_SPI4_CLK 26
+
+#define HI3559AV100_SHUB_UART_CLK_32K 30
+#define HI3559AV100_SHUB_UART_SOURCE_CLK 31
+#define HI3559AV100_SHUB_UART_DIV_CLK 32
+#define HI3559AV100_SHUB_UART0_CLK 33
+#define HI3559AV100_SHUB_UART1_CLK 34
+#define HI3559AV100_SHUB_UART2_CLK 35
+#define HI3559AV100_SHUB_UART3_CLK 36
+#define HI3559AV100_SHUB_UART4_CLK 37
+#define HI3559AV100_SHUB_UART5_CLK 38
+#define HI3559AV100_SHUB_UART6_CLK 39
+
+#define HI3559AV100_SHUB_EDMAC_CLK 40
+
+#define HI3559AV100_SHUB_NR_CLKS 50
+
+#endif /* __DTS_HI3559AV100_CLOCK_H */
+
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 2/4] clk: hisilicon: Add clock driver for hi3559A SoC
2020-12-12 13:08 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings Dongjiu Geng
@ 2020-12-12 13:08 ` Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 3/4] dt: bindings: dma: Add DT bindings for HiSilicon Hiedma Controller Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 4/4] dmaengine: dma: Add Hiedma Controller v310 Device Driver Dongjiu Geng
3 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:08 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
Add clock drivers for hi3559A SoC, this driver
controls the SoC registers to supply different
clocks to different IPs in the SoC.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
drivers/clk/hisilicon/Kconfig | 7 +
drivers/clk/hisilicon/Makefile | 1 +
drivers/clk/hisilicon/clk-hi3559a.c | 865 ++++++++++++++++++++++++++++
3 files changed, 873 insertions(+)
create mode 100644 drivers/clk/hisilicon/clk-hi3559a.c
diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig
index 6a9e93a0bb95..5ecc37aaa118 100644
--- a/drivers/clk/hisilicon/Kconfig
+++ b/drivers/clk/hisilicon/Kconfig
@@ -15,6 +15,13 @@ config COMMON_CLK_HI3519
help
Build the clock driver for hi3519.
+config COMMON_CLK_HI3559A
+ bool "Hi3559A Clock Driver"
+ depends on ARCH_HISI || COMPILE_TEST
+ default ARCH_HISI
+ help
+ Build the clock driver for hi3559a.
+
config COMMON_CLK_HI3660
bool "Hi3660 Clock Driver"
depends on ARCH_HISI || COMPILE_TEST
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index b2441b99f3d5..bc101833b35e 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o
obj-$(CONFIG_RESET_HISI) += reset.o
obj-$(CONFIG_STUB_CLK_HI6220) += clk-hi6220-stub.o
obj-$(CONFIG_STUB_CLK_HI3660) += clk-hi3660-stub.o
+obj-$(CONFIG_COMMON_CLK_HI3559A) += clk-hi3559a.o
diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
new file mode 100644
index 000000000000..d7693e488006
--- /dev/null
+++ b/drivers/clk/hisilicon/clk-hi3559a.c
@@ -0,0 +1,865 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Hisilicon Hi3559A clock driver
+ *
+ * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <dt-bindings/clock/hi3559av100-clock.h>
+
+#include "clk.h"
+#include "crg.h"
+#include "reset.h"
+
+#define CRG_BASE_ADDR 0x18020000
+
+struct hi3559av100_pll_clock {
+ u32 id;
+ const char *name;
+ const char *parent_name;
+ u32 ctrl_reg1;
+ u8 frac_shift;
+ u8 frac_width;
+ u8 postdiv1_shift;
+ u8 postdiv1_width;
+ u8 postdiv2_shift;
+ u8 postdiv2_width;
+ u32 ctrl_reg2;
+ u8 fbdiv_shift;
+ u8 fbdiv_width;
+ u8 refdiv_shift;
+ u8 refdiv_width;
+};
+
+struct hi3559av100_clk_pll {
+ struct clk_hw hw;
+ u32 id;
+ void __iomem *ctrl_reg1;
+ u8 frac_shift;
+ u8 frac_width;
+ u8 postdiv1_shift;
+ u8 postdiv1_width;
+ u8 postdiv2_shift;
+ u8 postdiv2_width;
+ void __iomem *ctrl_reg2;
+ u8 fbdiv_shift;
+ u8 fbdiv_width;
+ u8 refdiv_shift;
+ u8 refdiv_width;
+};
+
+/* soc clk config */
+static const struct hisi_fixed_rate_clock hi3559av100_fixed_rate_clks_crg[] = {
+ { HI3559AV100_FIXED_1188M, "1188m", NULL, 0, 1188000000, },
+ { HI3559AV100_FIXED_1000M, "1000m", NULL, 0, 1000000000, },
+ { HI3559AV100_FIXED_842M, "842m", NULL, 0, 842000000, },
+ { HI3559AV100_FIXED_792M, "792m", NULL, 0, 792000000, },
+ { HI3559AV100_FIXED_750M, "750m", NULL, 0, 750000000, },
+ { HI3559AV100_FIXED_710M, "710m", NULL, 0, 710000000, },
+ { HI3559AV100_FIXED_680M, "680m", NULL, 0, 680000000, },
+ { HI3559AV100_FIXED_667M, "667m", NULL, 0, 667000000, },
+ { HI3559AV100_FIXED_631M, "631m", NULL, 0, 631000000, },
+ { HI3559AV100_FIXED_600M, "600m", NULL, 0, 600000000, },
+ { HI3559AV100_FIXED_568M, "568m", NULL, 0, 568000000, },
+ { HI3559AV100_FIXED_500M, "500m", NULL, 0, 500000000, },
+ { HI3559AV100_FIXED_475M, "475m", NULL, 0, 475000000, },
+ { HI3559AV100_FIXED_428M, "428m", NULL, 0, 428000000, },
+ { HI3559AV100_FIXED_400M, "400m", NULL, 0, 400000000, },
+ { HI3559AV100_FIXED_396M, "396m", NULL, 0, 396000000, },
+ { HI3559AV100_FIXED_300M, "300m", NULL, 0, 300000000, },
+ { HI3559AV100_FIXED_250M, "250m", NULL, 0, 250000000, },
+ { HI3559AV100_FIXED_200M, "200m", NULL, 0, 200000000, },
+ { HI3559AV100_FIXED_198M, "198m", NULL, 0, 198000000, },
+ { HI3559AV100_FIXED_187p5M, "187p5m", NULL, 0, 187500000, },
+ { HI3559AV100_FIXED_150M, "150m", NULL, 0, 150000000, },
+ { HI3559AV100_FIXED_148p5M, "148p5m", NULL, 0, 1485000000, },
+ { HI3559AV100_FIXED_125M, "125m", NULL, 0, 125000000, },
+ { HI3559AV100_FIXED_107M, "107m", NULL, 0, 107000000, },
+ { HI3559AV100_FIXED_100M, "100m", NULL, 0, 100000000, },
+ { HI3559AV100_FIXED_99M, "99m", NULL, 0, 99000000, },
+ { HI3559AV100_FIXED_75M, "75m", NULL, 0, 75000000, },
+ { HI3559AV100_FIXED_74p25M, "74p25m", NULL, 0, 74250000, },
+ { HI3559AV100_FIXED_72M, "72m", NULL, 0, 72000000, },
+ { HI3559AV100_FIXED_60M, "60m", NULL, 0, 60000000, },
+ { HI3559AV100_FIXED_54M, "54m", NULL, 0, 54000000, },
+ { HI3559AV100_FIXED_50M, "50m", NULL, 0, 50000000, },
+ { HI3559AV100_FIXED_49p5M, "49p5m", NULL, 0, 49500000, },
+ { HI3559AV100_FIXED_37p125M, "37p125m", NULL, 0, 37125000, },
+ { HI3559AV100_FIXED_36M, "36m", NULL, 0, 36000000, },
+ { HI3559AV100_FIXED_32p4M, "32p4m", NULL, 0, 32400000, },
+ { HI3559AV100_FIXED_27M, "27m", NULL, 0, 27000000, },
+ { HI3559AV100_FIXED_25M, "25m", NULL, 0, 25000000, },
+ { HI3559AV100_FIXED_24M, "24m", NULL, 0, 24000000, },
+ { HI3559AV100_FIXED_12M, "12m", NULL, 0, 12000000, },
+ { HI3559AV100_FIXED_3M, "3m", NULL, 0, 3000000, },
+ { HI3559AV100_FIXED_1p6M, "1p6m", NULL, 0, 1600000, },
+ { HI3559AV100_FIXED_400K, "400k", NULL, 0, 400000, },
+ { HI3559AV100_FIXED_100K, "100k", NULL, 0, 100000, },
+};
+
+
+static const char *fmc_mux_p[] __initconst = {
+ "24m", "75m", "125m", "150m", "200m", "250m", "300m", "400m"
+};
+static u32 fmc_mux_table[] = {0, 1, 2, 3, 4, 5, 6, 7};
+
+static const char *mmc_mux_p[] __initconst = {
+ "100k", "25m", "49p5m", "99m", "187p5m", "150m", "198m", "400k"
+};
+static u32 mmc_mux_table[] = {0, 1, 2, 3, 4, 5, 6, 7};
+
+static const char *sysapb_mux_p[] __initconst = {
+ "24m", "50m",
+};
+static u32 sysapb_mux_table[] = {0, 1};
+
+static const char *sysbus_mux_p[] __initconst = {
+ "24m", "300m"
+};
+static u32 sysbus_mux_table[] = {0, 1};
+
+static const char *uart_mux_p[] __initconst = {"50m", "24m", "3m"};
+static u32 uart_mux_table[] = {0, 1, 2};
+
+static const char *a73_clksel_mux_p[] __initconst = {
+ "24m", "apll", "1000m"
+};
+static u32 a73_clksel_mux_table[] = {0, 1, 2};
+
+static struct hisi_mux_clock hi3559av100_mux_clks_crg[] __initdata = {
+ {
+ HI3559AV100_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),
+ CLK_SET_RATE_PARENT, 0x170, 2, 3, 0, fmc_mux_table,
+ },
+ {
+ HI3559AV100_MMC0_MUX, "mmc0_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
+ CLK_SET_RATE_PARENT, 0x1a8, 24, 3, 0, mmc_mux_table,
+ },
+ {
+ HI3559AV100_MMC1_MUX, "mmc1_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
+ CLK_SET_RATE_PARENT, 0x1ec, 24, 3, 0, mmc_mux_table,
+ },
+
+ {
+ HI3559AV100_MMC2_MUX, "mmc2_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
+ CLK_SET_RATE_PARENT, 0x214, 24, 3, 0, mmc_mux_table,
+ },
+
+ {
+ HI3559AV100_MMC3_MUX, "mmc3_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
+ CLK_SET_RATE_PARENT, 0x23c, 24, 3, 0, mmc_mux_table,
+ },
+
+ {
+ HI3559AV100_SYSAPB_MUX, "sysapb_mux", sysapb_mux_p, ARRAY_SIZE(sysapb_mux_p),
+ CLK_SET_RATE_PARENT, 0xe8, 3, 1, 0, sysapb_mux_table
+ },
+
+ {
+ HI3559AV100_SYSBUS_MUX, "sysbus_mux", sysbus_mux_p, ARRAY_SIZE(sysbus_mux_p),
+ CLK_SET_RATE_PARENT, 0xe8, 0, 1, 0, sysbus_mux_table
+ },
+
+ {
+ HI3559AV100_UART_MUX, "uart_mux", uart_mux_p, ARRAY_SIZE(uart_mux_p),
+ CLK_SET_RATE_PARENT, 0x198, 28, 2, 0, uart_mux_table
+ },
+
+ {
+ HI3559AV100_A73_MUX, "a73_mux", a73_clksel_mux_p, ARRAY_SIZE(a73_clksel_mux_p),
+ CLK_SET_RATE_PARENT, 0xe4, 0, 2, 0, a73_clksel_mux_table
+ },
+};
+
+static struct hisi_fixed_factor_clock hi3559av100_fixed_factor_clks[] __initdata
+ = {
+};
+
+static struct hisi_gate_clock hi3559av100_gate_clks[] __initdata = {
+ {
+ HI3559AV100_FMC_CLK, "clk_fmc", "fmc_mux",
+ CLK_SET_RATE_PARENT, 0x170, 1, 0,
+ },
+ {
+ HI3559AV100_MMC0_CLK, "clk_mmc0", "mmc0_mux",
+ CLK_SET_RATE_PARENT, 0x1a8, 28, 0,
+ },
+ {
+ HI3559AV100_MMC1_CLK, "clk_mmc1", "mmc1_mux",
+ CLK_SET_RATE_PARENT, 0x1ec, 28, 0,
+ },
+ {
+ HI3559AV100_MMC2_CLK, "clk_mmc2", "mmc2_mux",
+ CLK_SET_RATE_PARENT, 0x214, 28, 0,
+ },
+ {
+ HI3559AV100_MMC3_CLK, "clk_mmc3", "mmc3_mux",
+ CLK_SET_RATE_PARENT, 0x23c, 28, 0,
+ },
+ {
+ HI3559AV100_UART0_CLK, "clk_uart0", "uart_mux",
+ CLK_SET_RATE_PARENT, 0x198, 23, 0,
+ },
+ {
+ HI3559AV100_UART1_CLK, "clk_uart1", "uart_mux",
+ CLK_SET_RATE_PARENT, 0x198, 24, 0,
+ },
+ {
+ HI3559AV100_UART2_CLK, "clk_uart2", "uart_mux",
+ CLK_SET_RATE_PARENT, 0x198, 25, 0,
+ },
+ {
+ HI3559AV100_UART3_CLK, "clk_uart3", "uart_mux",
+ CLK_SET_RATE_PARENT, 0x198, 26, 0,
+ },
+ {
+ HI3559AV100_UART4_CLK, "clk_uart4", "uart_mux",
+ CLK_SET_RATE_PARENT, 0x198, 27, 0,
+ },
+ {
+ HI3559AV100_ETH_CLK, "clk_eth", NULL,
+ CLK_SET_RATE_PARENT, 0x0174, 1, 0,
+ },
+ {
+ HI3559AV100_ETH_MACIF_CLK, "clk_eth_macif", NULL,
+ CLK_SET_RATE_PARENT, 0x0174, 5, 0,
+ },
+ {
+ HI3559AV100_ETH1_CLK, "clk_eth1", NULL,
+ CLK_SET_RATE_PARENT, 0x0174, 3, 0,
+ },
+ {
+ HI3559AV100_ETH1_MACIF_CLK, "clk_eth1_macif", NULL,
+ CLK_SET_RATE_PARENT, 0x0174, 7, 0,
+ },
+ {
+ HI3559AV100_I2C0_CLK, "clk_i2c0", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 16, 0,
+ },
+ {
+ HI3559AV100_I2C1_CLK, "clk_i2c1", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 17, 0,
+ },
+ {
+ HI3559AV100_I2C2_CLK, "clk_i2c2", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 18, 0,
+ },
+ {
+ HI3559AV100_I2C3_CLK, "clk_i2c3", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 19, 0,
+ },
+ {
+ HI3559AV100_I2C4_CLK, "clk_i2c4", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 20, 0,
+ },
+ {
+ HI3559AV100_I2C5_CLK, "clk_i2c5", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 21, 0,
+ },
+ {
+ HI3559AV100_I2C6_CLK, "clk_i2c6", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 22, 0,
+ },
+ {
+ HI3559AV100_I2C7_CLK, "clk_i2c7", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 23, 0,
+ },
+ {
+ HI3559AV100_I2C8_CLK, "clk_i2c8", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 24, 0,
+ },
+ {
+ HI3559AV100_I2C9_CLK, "clk_i2c9", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 25, 0,
+ },
+ {
+ HI3559AV100_I2C10_CLK, "clk_i2c10", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 26, 0,
+ },
+ {
+ HI3559AV100_I2C11_CLK, "clk_i2c11", "50m",
+ CLK_SET_RATE_PARENT, 0x01a0, 27, 0,
+ },
+ {
+ HI3559AV100_SPI0_CLK, "clk_spi0", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 16, 0,
+ },
+ {
+ HI3559AV100_SPI1_CLK, "clk_spi1", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 17, 0,
+ },
+ {
+ HI3559AV100_SPI2_CLK, "clk_spi2", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 18, 0,
+ },
+ {
+ HI3559AV100_SPI3_CLK, "clk_spi3", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 19, 0,
+ },
+ {
+ HI3559AV100_SPI4_CLK, "clk_spi4", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 20, 0,
+ },
+ {
+ HI3559AV100_SPI5_CLK, "clk_spi5", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 21, 0,
+ },
+ {
+ HI3559AV100_SPI6_CLK, "clk_spi6", "100m",
+ CLK_SET_RATE_PARENT, 0x0198, 22, 0,
+ },
+ {
+ HI3559AV100_EDMAC_AXICLK, "axi_clk_edmac", NULL,
+ CLK_SET_RATE_PARENT, 0x16c, 6, 0,
+ },
+ {
+ HI3559AV100_EDMAC_CLK, "clk_edmac", NULL,
+ CLK_SET_RATE_PARENT, 0x16c, 5, 0,
+ },
+ {
+ HI3559AV100_EDMAC1_AXICLK, "axi_clk_edmac1", NULL,
+ CLK_SET_RATE_PARENT, 0x16c, 9, 0,
+ },
+ {
+ HI3559AV100_EDMAC1_CLK, "clk_edmac1", NULL,
+ CLK_SET_RATE_PARENT, 0x16c, 8, 0,
+ },
+ {
+ HI3559AV100_VDMAC_CLK, "clk_vdmac", NULL,
+ CLK_SET_RATE_PARENT, 0x14c, 5, 0,
+ },
+};
+
+static struct hi3559av100_pll_clock hi3559av100_pll_clks[] __initdata = {
+ {
+ HI3559AV100_APLL_CLK, "apll", NULL, 0x0, 0, 24, 24, 3, 28, 3,
+ 0x4, 0, 12, 12, 6
+ },
+ {
+ HI3559AV100_GPLL_CLK, "gpll", NULL, 0x20, 0, 24, 24, 3, 28, 3,
+ 0x24, 0, 12, 12, 6
+ },
+};
+
+#define to_pll_clk(_hw) container_of(_hw, struct hi3559av100_clk_pll, hw)
+static void hi3559av100_calc_pll(u32 *frac_val, u32 *postdiv1_val,
+ u32 *postdiv2_val,
+ u32 *fbdiv_val, u32 *refdiv_val, u64 rate)
+{
+ u64 rem;
+
+ *postdiv1_val = 2;
+ *postdiv2_val = 1;
+
+ rate = rate * ((*postdiv1_val) * (*postdiv2_val));
+
+ *frac_val = 0;
+ rem = do_div(rate, 1000000);
+ rem = do_div(rate, 24);
+ *fbdiv_val = rate;
+ *refdiv_val = 1;
+ rem = rem * (1 << 24);
+ do_div(rem, 24);
+ *frac_val = rem;
+}
+
+static int clk_pll_set_rate(struct clk_hw *hw,
+ unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct hi3559av100_clk_pll *clk = to_pll_clk(hw);
+ u32 frac_val, postdiv1_val, postdiv2_val, fbdiv_val, refdiv_val;
+ u32 val;
+
+ postdiv1_val = postdiv2_val = 0;
+
+ hi3559av100_calc_pll(&frac_val, &postdiv1_val, &postdiv2_val,
+ &fbdiv_val, &refdiv_val, (u64)rate);
+
+ val = readl_relaxed(clk->ctrl_reg1);
+ val &= ~(((1 << clk->frac_width) - 1) << clk->frac_shift);
+ val &= ~(((1 << clk->postdiv1_width) - 1) << clk->postdiv1_shift);
+ val &= ~(((1 << clk->postdiv2_width) - 1) << clk->postdiv2_shift);
+
+ val |= frac_val << clk->frac_shift;
+ val |= postdiv1_val << clk->postdiv1_shift;
+ val |= postdiv2_val << clk->postdiv2_shift;
+ writel_relaxed(val, clk->ctrl_reg1);
+
+ val = readl_relaxed(clk->ctrl_reg2);
+ val &= ~(((1 << clk->fbdiv_width) - 1) << clk->fbdiv_shift);
+ val &= ~(((1 << clk->refdiv_width) - 1) << clk->refdiv_shift);
+
+ val |= fbdiv_val << clk->fbdiv_shift;
+ val |= refdiv_val << clk->refdiv_shift;
+ writel_relaxed(val, clk->ctrl_reg2);
+
+ return 0;
+}
+
+static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct hi3559av100_clk_pll *clk = to_pll_clk(hw);
+ u64 frac_val, fbdiv_val, refdiv_val;
+ u32 postdiv1_val, postdiv2_val;
+ u32 val;
+ u64 tmp, rate;
+
+ val = readl_relaxed(clk->ctrl_reg1);
+ val = val >> clk->frac_shift;
+ val &= ((1 << clk->frac_width) - 1);
+ frac_val = val;
+
+ val = readl_relaxed(clk->ctrl_reg1);
+ val = val >> clk->postdiv1_shift;
+ val &= ((1 << clk->postdiv1_width) - 1);
+ postdiv1_val = val;
+
+ val = readl_relaxed(clk->ctrl_reg1);
+ val = val >> clk->postdiv2_shift;
+ val &= ((1 << clk->postdiv2_width) - 1);
+ postdiv2_val = val;
+
+ val = readl_relaxed(clk->ctrl_reg2);
+ val = val >> clk->fbdiv_shift;
+ val &= ((1 << clk->fbdiv_width) - 1);
+ fbdiv_val = val;
+
+ val = readl_relaxed(clk->ctrl_reg2);
+ val = val >> clk->refdiv_shift;
+ val &= ((1 << clk->refdiv_width) - 1);
+ refdiv_val = val;
+
+ /* rate = 24000000 * (fbdiv + frac / (1<<24) ) / refdiv */
+ rate = 0;
+ tmp = 24000000 * fbdiv_val + (24000000 * frac_val) / (1 << 24);
+ rate += tmp;
+ do_div(rate, refdiv_val);
+ do_div(rate, postdiv1_val * postdiv2_val);
+
+ return rate;
+}
+
+static int clk_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ return req->rate;
+}
+
+static const struct clk_ops clk_pll_ops = {
+ .set_rate = clk_pll_set_rate,
+ .determine_rate = clk_pll_determine_rate,
+ .recalc_rate = clk_pll_recalc_rate,
+};
+
+static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
+ int nums, struct hisi_clock_data *data)
+{
+ void __iomem *base = data->base;
+ int i;
+
+ for (i = 0; i < nums; i++) {
+ struct hi3559av100_clk_pll *p_clk = NULL;
+ struct clk *clk = NULL;
+ struct clk_init_data init;
+
+ p_clk = kzalloc(sizeof(*p_clk), GFP_KERNEL);
+ if (!p_clk)
+ return;
+
+ init.name = clks[i].name;
+ init.flags = 0;
+ init.parent_names =
+ (clks[i].parent_name ? &clks[i].parent_name : NULL);
+ init.num_parents = (clks[i].parent_name ? 1 : 0);
+ init.ops = &clk_pll_ops;
+
+ p_clk->ctrl_reg1 = base + clks[i].ctrl_reg1;
+ p_clk->frac_shift = clks[i].frac_shift;
+ p_clk->frac_width = clks[i].frac_width;
+ p_clk->postdiv1_shift = clks[i].postdiv1_shift;
+ p_clk->postdiv1_width = clks[i].postdiv1_width;
+ p_clk->postdiv2_shift = clks[i].postdiv2_shift;
+ p_clk->postdiv2_width = clks[i].postdiv2_width;
+
+ p_clk->ctrl_reg2 = base + clks[i].ctrl_reg2;
+ p_clk->fbdiv_shift = clks[i].fbdiv_shift;
+ p_clk->fbdiv_width = clks[i].fbdiv_width;
+ p_clk->refdiv_shift = clks[i].refdiv_shift;
+ p_clk->refdiv_width = clks[i].refdiv_width;
+ p_clk->hw.init = &init;
+
+ clk = clk_register(NULL, &p_clk->hw);
+ if (IS_ERR(clk)) {
+ kfree(p_clk);
+ pr_err("%s: failed to register clock %s\n",
+ __func__, clks[i].name);
+ continue;
+ }
+
+ data->clk_data.clks[clks[i].id] = clk;
+ }
+}
+
+static __init struct hisi_clock_data *hi3559av100_clk_register(
+ struct platform_device *pdev)
+{
+ struct hisi_clock_data *clk_data;
+ int ret;
+
+ clk_data = hisi_clk_alloc(pdev, HI3559AV100_CRG_NR_CLKS);
+ if (!clk_data)
+ return ERR_PTR(-ENOMEM);
+
+ ret = hisi_clk_register_fixed_rate(hi3559av100_fixed_rate_clks_crg,
+ ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
+ if (ret)
+ return ERR_PTR(ret);
+
+ hisi_clk_register_pll(hi3559av100_pll_clks,
+ ARRAY_SIZE(hi3559av100_pll_clks), clk_data);
+
+ ret = hisi_clk_register_mux(hi3559av100_mux_clks_crg,
+ ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
+ if (ret)
+ goto unregister_fixed_rate;
+
+ ret = hisi_clk_register_fixed_factor(hi3559av100_fixed_factor_clks,
+ ARRAY_SIZE(hi3559av100_fixed_factor_clks), clk_data);
+ if (ret)
+ goto unregister_mux;
+
+ ret = hisi_clk_register_gate(hi3559av100_gate_clks,
+ ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
+ if (ret)
+ goto unregister_factor;
+
+ ret = of_clk_add_provider(pdev->dev.of_node,
+ of_clk_src_onecell_get, &clk_data->clk_data);
+ if (ret)
+ goto unregister_gate;
+
+ return clk_data;
+
+unregister_gate:
+ hisi_clk_unregister_gate(hi3559av100_gate_clks,
+ ARRAY_SIZE(hi3559av100_gate_clks), clk_data);
+unregister_factor:
+ hisi_clk_unregister_fixed_factor(hi3559av100_fixed_factor_clks,
+ ARRAY_SIZE(hi3559av100_fixed_factor_clks), clk_data);
+unregister_mux:
+ hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
+ ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);
+unregister_fixed_rate:
+ hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
+ ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);
+ return ERR_PTR(ret);
+}
+
+static __init void hi3559av100_clk_unregister(struct platform_device *pdev)
+{
+ struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
+
+ of_clk_del_provider(pdev->dev.of_node);
+
+ hisi_clk_unregister_gate(hi3559av100_gate_clks,
+ ARRAY_SIZE(hi3559av100_gate_clks), crg->clk_data);
+ hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,
+ ARRAY_SIZE(hi3559av100_mux_clks_crg), crg->clk_data);
+ hisi_clk_unregister_fixed_factor(hi3559av100_fixed_factor_clks,
+ ARRAY_SIZE(hi3559av100_fixed_factor_clks), crg->clk_data);
+ hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,
+ ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), crg->clk_data);
+}
+
+static const struct hisi_crg_funcs hi3559av100_crg_funcs = {
+ .register_clks = hi3559av100_clk_register,
+ .unregister_clks = hi3559av100_clk_unregister,
+};
+
+static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[]
+ __initdata = {
+ { HI3559AV100_SHUB_SOURCE_SOC_24M, "clk_source_24M", NULL, 0, 24000000UL, },
+ { HI3559AV100_SHUB_SOURCE_SOC_200M, "clk_source_200M", NULL, 0, 200000000UL, },
+ { HI3559AV100_SHUB_SOURCE_SOC_300M, "clk_source_300M", NULL, 0, 300000000UL, },
+ { HI3559AV100_SHUB_SOURCE_PLL, "clk_source_PLL", NULL, 0, 192000000UL, },
+ { HI3559AV100_SHUB_I2C0_CLK, "clk_shub_i2c0", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C1_CLK, "clk_shub_i2c1", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C2_CLK, "clk_shub_i2c2", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C3_CLK, "clk_shub_i2c3", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C4_CLK, "clk_shub_i2c4", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C5_CLK, "clk_shub_i2c5", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C6_CLK, "clk_shub_i2c6", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_I2C7_CLK, "clk_shub_i2c7", NULL, 0, 48000000UL, },
+ { HI3559AV100_SHUB_UART_CLK_32K, "clk_uart_32K", NULL, 0, 32000UL, },
+};
+
+/* shub mux clk */
+static u32 shub_source_clk_mux_table[] = {0, 1, 2, 3};
+static const char *shub_source_clk_mux_p[] __initconst = {
+ "clk_source_24M", "clk_source_200M", "clk_source_300M", "clk_source_PLL"
+};
+
+static u32 shub_uart_source_clk_mux_table[] = {0, 1, 2, 3};
+static const char *shub_uart_source_clk_mux_p[] __initconst = {
+ "clk_uart_32K", "clk_uart_div_clk", "clk_uart_div_clk", "clk_source_24M"
+};
+
+static struct hisi_mux_clock hi3559av100_shub_mux_clks[] __initdata = {
+ {
+ HI3559AV100_SHUB_SOURCE_CLK, "shub_clk", shub_source_clk_mux_p,
+ ARRAY_SIZE(shub_source_clk_mux_p),
+ 0, 0x0, 0, 2, 0, shub_source_clk_mux_table,
+ },
+
+ {
+ HI3559AV100_SHUB_UART_SOURCE_CLK, "shub_uart_source_clk",
+ shub_uart_source_clk_mux_p, ARRAY_SIZE(shub_uart_source_clk_mux_p),
+ 0, 0x1c, 28, 2, 0, shub_uart_source_clk_mux_table,
+ },
+};
+
+
+/* shub div clk */
+struct clk_div_table shub_spi_clk_table[] = {{0, 8}, {1, 4}, {2, 2}};
+struct clk_div_table shub_spi4_clk_table[] = {{0, 8}, {1, 4}, {2, 2}, {3, 1}};
+struct clk_div_table shub_uart_div_clk_table[] = {{1, 8}, {2, 4}};
+
+struct hisi_divider_clock hi3559av100_shub_div_clks[] __initdata = {
+ { HI3559AV100_SHUB_SPI_SOURCE_CLK, "clk_spi_clk", "shub_clk", 0, 0x20, 24, 2,
+ CLK_DIVIDER_ALLOW_ZERO, shub_spi_clk_table,
+ },
+ { HI3559AV100_SHUB_UART_DIV_CLK, "clk_uart_div_clk", "shub_clk", 0, 0x1c, 28, 2,
+ CLK_DIVIDER_ALLOW_ZERO, shub_uart_div_clk_table,
+ },
+};
+
+/* shub gate clk */
+static struct hisi_gate_clock hi3559av100_shub_gate_clks[] __initdata = {
+ {
+ HI3559AV100_SHUB_SPI0_CLK, "clk_shub_spi0", "clk_spi_clk",
+ 0, 0x20, 1, 0,
+ },
+ {
+ HI3559AV100_SHUB_SPI1_CLK, "clk_shub_spi1", "clk_spi_clk",
+ 0, 0x20, 5, 0,
+ },
+ {
+ HI3559AV100_SHUB_SPI2_CLK, "clk_shub_spi2", "clk_spi_clk",
+ 0, 0x20, 9, 0,
+ },
+
+ {
+ HI3559AV100_SHUB_UART0_CLK, "clk_shub_uart0", "shub_uart_source_clk",
+ 0, 0x1c, 1, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART1_CLK, "clk_shub_uart1", "shub_uart_source_clk",
+ 0, 0x1c, 5, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART2_CLK, "clk_shub_uart2", "shub_uart_source_clk",
+ 0, 0x1c, 9, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART3_CLK, "clk_shub_uart3", "shub_uart_source_clk",
+ 0, 0x1c, 13, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART4_CLK, "clk_shub_uart4", "shub_uart_source_clk",
+ 0, 0x1c, 17, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART5_CLK, "clk_shub_uart5", "shub_uart_source_clk",
+ 0, 0x1c, 21, 0,
+ },
+ {
+ HI3559AV100_SHUB_UART6_CLK, "clk_shub_uart6", "shub_uart_source_clk",
+ 0, 0x1c, 25, 0,
+ },
+
+ {
+ HI3559AV100_SHUB_EDMAC_CLK, "clk_shub_dmac", "shub_clk",
+ 0, 0x24, 4, 0,
+ },
+};
+
+static int hi3559av100_shub_default_clk_set(void)
+{
+ void *crg_base;
+ unsigned int val;
+
+ crg_base = ioremap(CRG_BASE_ADDR, SZ_4K);
+
+ /* SSP: 192M/2 */
+ val = readl_relaxed(crg_base + 0x20);
+ val |= (0x2 << 24);
+ writel_relaxed(val, crg_base + 0x20);
+
+ /* UART: 192M/8 */
+ val = readl_relaxed(crg_base + 0x1C);
+ val |= (0x1 << 28);
+ writel_relaxed(val, crg_base + 0x1C);
+
+ iounmap(crg_base);
+ crg_base = NULL;
+
+ return 0;
+}
+
+static __init struct hisi_clock_data *hi3559av100_shub_clk_register(
+ struct platform_device *pdev)
+{
+ struct hisi_clock_data *clk_data = NULL;
+ int ret;
+
+ hi3559av100_shub_default_clk_set();
+
+ clk_data = hisi_clk_alloc(pdev, HI3559AV100_SHUB_NR_CLKS);
+ if (!clk_data)
+ return ERR_PTR(-ENOMEM);
+
+ ret = hisi_clk_register_fixed_rate(hi3559av100_shub_fixed_rate_clks,
+ ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
+ if (ret)
+ return ERR_PTR(ret);
+
+ ret = hisi_clk_register_mux(hi3559av100_shub_mux_clks,
+ ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
+ if (ret)
+ goto unregister_fixed_rate;
+
+ ret = hisi_clk_register_divider(hi3559av100_shub_div_clks,
+ ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
+ if (ret)
+ goto unregister_mux;
+
+ ret = hisi_clk_register_gate(hi3559av100_shub_gate_clks,
+ ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
+ if (ret)
+ goto unregister_factor;
+
+ ret = of_clk_add_provider(pdev->dev.of_node,
+ of_clk_src_onecell_get, &clk_data->clk_data);
+ if (ret)
+ goto unregister_gate;
+
+ return clk_data;
+
+unregister_gate:
+ hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
+ ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);
+unregister_factor:
+ hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
+ ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);
+unregister_mux:
+ hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
+ ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);
+unregister_fixed_rate:
+ hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
+ ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);
+ return ERR_PTR(ret);
+}
+
+static __init void hi3559av100_shub_clk_unregister(struct platform_device *pdev)
+{
+ struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
+
+ of_clk_del_provider(pdev->dev.of_node);
+
+ hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,
+ ARRAY_SIZE(hi3559av100_shub_gate_clks), crg->clk_data);
+ hisi_clk_unregister_divider(hi3559av100_shub_div_clks,
+ ARRAY_SIZE(hi3559av100_shub_div_clks), crg->clk_data);
+ hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,
+ ARRAY_SIZE(hi3559av100_shub_mux_clks), crg->clk_data);
+ hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,
+ ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), crg->clk_data);
+}
+
+static const struct hisi_crg_funcs hi3559av100_shub_crg_funcs = {
+ .register_clks = hi3559av100_shub_clk_register,
+ .unregister_clks = hi3559av100_shub_clk_unregister,
+};
+
+static const struct of_device_id hi3559av100_crg_match_table[] = {
+ {
+ .compatible = "hisilicon,hi3559av100-clock",
+ .data = &hi3559av100_crg_funcs
+ },
+ {
+ .compatible = "hisilicon,hi3559av100-shub-clock",
+ .data = &hi3559av100_shub_crg_funcs
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, hi3559av100_crg_match_table);
+
+static int hi3559av100_crg_probe(struct platform_device *pdev)
+{
+ struct hisi_crg_dev *crg;
+
+ crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);
+ if (!crg)
+ return -ENOMEM;
+
+ crg->funcs = of_device_get_match_data(&pdev->dev);
+ if (!crg->funcs)
+ return -ENOENT;
+
+ crg->rstc = hisi_reset_init(pdev);
+ if (!crg->rstc)
+ return -ENOMEM;
+
+ crg->clk_data = crg->funcs->register_clks(pdev);
+ if (IS_ERR(crg->clk_data)) {
+ hisi_reset_exit(crg->rstc);
+ return PTR_ERR(crg->clk_data);
+ }
+
+ platform_set_drvdata(pdev, crg);
+ return 0;
+}
+
+static int hi3559av100_crg_remove(struct platform_device *pdev)
+{
+ struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
+
+ hisi_reset_exit(crg->rstc);
+ crg->funcs->unregister_clks(pdev);
+ return 0;
+}
+
+static struct platform_driver hi3559av100_crg_driver = {
+ .probe = hi3559av100_crg_probe,
+ .remove = hi3559av100_crg_remove,
+ .driver = {
+ .name = "hi3559av100-clock",
+ .of_match_table = hi3559av100_crg_match_table,
+ },
+};
+
+static int __init hi3559av100_crg_init(void)
+{
+ return platform_driver_register(&hi3559av100_crg_driver);
+}
+core_initcall(hi3559av100_crg_init);
+
+static void __exit hi3559av100_crg_exit(void)
+{
+ platform_driver_unregister(&hi3559av100_crg_driver);
+}
+module_exit(hi3559av100_crg_exit);
+
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HiSilicon Hi3559AV100 CRG Driver");
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 3/4] dt: bindings: dma: Add DT bindings for HiSilicon Hiedma Controller
2020-12-12 13:08 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 2/4] clk: hisilicon: Add clock driver for hi3559A SoC Dongjiu Geng
@ 2020-12-12 13:08 ` Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 4/4] dmaengine: dma: Add Hiedma Controller v310 Device Driver Dongjiu Geng
3 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:08 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
The Hiedma Controller v310 Provides eight DMA channels, each
channel can be configured for one-way transfer. The data can
be transferred in 8-bit, 16-bit, 32-bit, or 64-bit mode. This
documentation describes DT bindings of this controller.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
.../bindings/dma/hisilicon,hiedmacv310.yaml | 94 +++++++++++++++++++
1 file changed, 94 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/hisilicon,hiedmacv310.yaml
diff --git a/Documentation/devicetree/bindings/dma/hisilicon,hiedmacv310.yaml b/Documentation/devicetree/bindings/dma/hisilicon,hiedmacv310.yaml
new file mode 100644
index 000000000000..f57703fbbe7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/hisilicon,hiedmacv310.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/hisilicon,hiedmacv310.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon Hiedma Controller v310 Device Tree Bindings
+
+description: |
+ These bindings describe the DMA engine included in the HiSilicon Hiedma
+ Controller v310 Device.
+
+maintainers:
+ - Dongjiu Geng <gengdongjiu@huawei.com>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 2
+
+ compatible:
+ const: hisilicon,hiedmacv310
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ hisi,misc-control:
+ $ref: /schemas/types.yaml#definitions/phandle-array
+ description: phandle pointing to the misc controller provider node and base register.
+
+ clocks:
+ items:
+ - description: apb clock
+ - description: axi clock
+
+ clock-names:
+ items:
+ - const: apb_pclk
+ - const: axi_aclk
+
+ resets:
+ description: phandle pointing to the dma reset controller provider node.
+
+ reset-names:
+ items:
+ - const: dma-reset
+
+ dma-requests:
+ maximum: 32
+
+ dma-channels:
+ maximum: 8
+
+
+required:
+ - "#dma-cells"
+ - compatible
+ - hisi,misc-control
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - dma-requests
+ - dma-channels
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/hi3559av100-clock.h>
+
+ dma: dma-controller@10040000 {
+ compatible = "hisilicon,hiedmacv310";
+ reg = <0x10040000 0x1000>;
+ hisi,misc-control = <&misc_ctrl 0x144>;
+ interrupts = <0 82 4>;
+ clocks = <&clock HI3559AV100_EDMAC1_CLK>, <&clock HI3559AV100_EDMAC1_AXICLK>;
+ clock-names = "apb_pclk", "axi_aclk";
+ resets = <&clock 0x16c 7>;
+ reset-names = "dma-reset";
+ dma-requests = <32>;
+ dma-channels = <8>;
+ #dma-cells = <2>;
+ };
+
+...
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 4/4] dmaengine: dma: Add Hiedma Controller v310 Device Driver
2020-12-12 13:08 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
` (2 preceding siblings ...)
2020-12-12 13:08 ` [PATCH v6 3/4] dt: bindings: dma: Add DT bindings for HiSilicon Hiedma Controller Dongjiu Geng
@ 2020-12-12 13:08 ` Dongjiu Geng
3 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:08 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
Hisilicon EDMA Controller(EDMAC) directly transfers data
between a memory and a peripheral, between peripherals, or
between memories. This avoids the CPU intervention and reduces
the interrupt handling overhead of the CPU, this driver enables
this controller.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
drivers/dma/Kconfig | 14 +
drivers/dma/Makefile | 1 +
drivers/dma/hiedmacv310.c | 1442 +++++++++++++++++++++++++++++++++++++
drivers/dma/hiedmacv310.h | 136 ++++
4 files changed, 1593 insertions(+)
create mode 100644 drivers/dma/hiedmacv310.c
create mode 100644 drivers/dma/hiedmacv310.h
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 90284ffda58a..3e5107120ff1 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -327,6 +327,20 @@ config K3_DMA
Support the DMA engine for Hisilicon K3 platform
devices.
+config HIEDMACV310
+ tristate "Hisilicon EDMAC Controller support"
+ depends on ARCH_HISI
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+ help
+ The Direction Memory Access(EDMA) is a high-speed data transfer
+ operation. It supports data read/write between peripherals and
+ memories without using the CPU.
+ Hisilicon EDMA Controller(EDMAC) directly transfers data between
+ a memory and a peripheral, between peripherals, or between memories.
+ This avoids the CPU intervention and reduces the interrupt handling
+ overhead of the CPU.
+
config LPC18XX_DMAMUX
bool "NXP LPC18xx/43xx DMA MUX for PL080"
depends on ARCH_LPC18XX || COMPILE_TEST
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index 948a8da05f8b..28c7298b671e 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -82,6 +82,7 @@ obj-$(CONFIG_XGENE_DMA) += xgene-dma.o
obj-$(CONFIG_ZX_DMA) += zx_dma.o
obj-$(CONFIG_ST_FDMA) += st_fdma.o
obj-$(CONFIG_FSL_DPAA2_QDMA) += fsl-dpaa2-qdma/
+obj-$(CONFIG_HIEDMACV310) += hiedmacv310.o
obj-y += mediatek/
obj-y += qcom/
diff --git a/drivers/dma/hiedmacv310.c b/drivers/dma/hiedmacv310.c
new file mode 100644
index 000000000000..ddf9b5d85a27
--- /dev/null
+++ b/drivers/dma/hiedmacv310.c
@@ -0,0 +1,1442 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The Hiedma Controller v310 Device Driver for HiSilicon
+ *
+ * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ */
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/reset.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/dmaengine.h>
+#include <linux/dmapool.h>
+#include <linux/dma-mapping.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_dma.h>
+#include <linux/pm_runtime.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+
+#include "hiedmacv310.h"
+#include "dmaengine.h"
+#include "virt-dma.h"
+
+#define DRIVER_NAME "hiedmacv310"
+
+#define MAX_TSFR_LLIS 512
+#define EDMACV300_LLI_WORDS 64
+#define EDMACV300_POOL_ALIGN 64
+#define BITS_PER_HALF_WORD 32
+
+struct hiedmac_lli {
+ u64 next_lli;
+ u32 reserved[5];
+ u32 count;
+ u64 src_addr;
+ u64 dest_addr;
+ u32 config;
+ u32 pad[3];
+};
+
+struct hiedmac_sg {
+ dma_addr_t src_addr;
+ dma_addr_t dst_addr;
+ size_t len;
+ struct list_head node;
+};
+
+struct transfer_desc {
+ struct virt_dma_desc virt_desc;
+ dma_addr_t llis_busaddr;
+ u64 *llis_vaddr;
+ u32 ccfg;
+ size_t size;
+ bool done;
+ bool cyclic;
+};
+
+enum edmac_dma_chan_state {
+ HIEDMAC_CHAN_IDLE,
+ HIEDMAC_CHAN_RUNNING,
+ HIEDMAC_CHAN_PAUSED,
+ HIEDMAC_CHAN_WAITING,
+};
+
+struct hiedmacv310_dma_chan {
+ bool slave;
+ int signal;
+ int id;
+ struct virt_dma_chan virt_chan;
+ struct hiedmacv310_phy_chan *phychan;
+ struct dma_slave_config cfg;
+ struct transfer_desc *at;
+ struct hiedmacv310_driver_data *host;
+ enum edmac_dma_chan_state state;
+};
+
+struct hiedmacv310_phy_chan {
+ unsigned int id;
+ void __iomem *base;
+ spinlock_t lock;
+ struct hiedmacv310_dma_chan *serving;
+};
+
+struct hiedmacv310_driver_data {
+ struct platform_device *dev;
+ struct dma_device slave;
+ struct dma_device memcpy;
+ void __iomem *base;
+ struct regmap *misc_regmap;
+ void __iomem *crg_ctrl;
+ struct hiedmacv310_phy_chan *phy_chans;
+ struct dma_pool *pool;
+ unsigned int misc_ctrl_base;
+ int irq;
+ struct clk *clk;
+ struct clk *axi_clk;
+ struct reset_control *rstc;
+ unsigned int channels;
+ unsigned int slave_requests;
+ unsigned int max_transfer_size;
+};
+
+#ifdef DEBUG_HIEDMAC
+static void dump_lli(const u64 *llis_vaddr, unsigned int num)
+{
+ struct hiedmac_lli *plli = (struct hiedmac_lli *)llis_vaddr;
+ unsigned int i;
+
+ hiedmacv310_trace(HIEDMACV310_CONFIG_TRACE_LEVEL, "lli num = 0%d", num);
+ for (i = 0; i < num; i++) {
+ hiedmacv310_info("lli%d:lli_L: 0x%llx\n", i,
+ plli[i].next_lli & 0xffffffff);
+ hiedmacv310_info("lli%d:lli_H: 0x%llx\n", i,
+ (plli[i].next_lli >> BITS_PER_HALF_WORD) & 0xffffffff);
+ hiedmacv310_info("lli%d:count: 0x%x\n", i,
+ plli[i].count);
+ hiedmacv310_info("lli%d:src_addr_L: 0x%llx\n", i,
+ plli[i].src_addr & 0xffffffff);
+ hiedmacv310_info("lli%d:src_addr_H: 0x%llx\n", i,
+ (plli[i].src_addr >> BITS_PER_HALF_WORD) & 0xffffffff);
+ hiedmacv310_info("lli%d:dst_addr_L: 0x%llx\n", i,
+ plli[i].dest_addr & 0xffffffff);
+ hiedmacv310_info("lli%d:dst_addr_H: 0x%llx\n", i,
+ (plli[i].dest_addr >> BITS_PER_HALF_WORD) & 0xffffffff);
+ hiedmacv310_info("lli%d:CONFIG: 0x%x\n", i,
+ plli[i].config);
+ }
+}
+
+#else
+static void dump_lli(u64 *llis_vaddr, unsigned int num)
+{
+}
+#endif
+
+static inline struct hiedmacv310_dma_chan *to_edamc_chan(const struct dma_chan *chan)
+{
+ return container_of(chan, struct hiedmacv310_dma_chan, virt_chan.chan);
+}
+
+static inline struct transfer_desc *to_edmac_transfer_desc(
+ const struct dma_async_tx_descriptor *tx)
+{
+ return container_of(tx, struct transfer_desc, virt_desc.tx);
+}
+
+static struct dma_chan *hiedmac_find_chan_id(
+ const struct hiedmacv310_driver_data *hiedmac,
+ int request_num)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = NULL;
+
+ list_for_each_entry(edmac_dma_chan, &hiedmac->slave.channels,
+ virt_chan.chan.device_node) {
+ if (edmac_dma_chan->id == request_num)
+ return &edmac_dma_chan->virt_chan.chan;
+ }
+ return NULL;
+}
+
+static struct dma_chan *hiedma_of_xlate(struct of_phandle_args *dma_spec,
+ struct of_dma *ofdma)
+{
+ struct hiedmacv310_driver_data *hiedmac = ofdma->of_dma_data;
+ struct hiedmacv310_dma_chan *edmac_dma_chan = NULL;
+ struct dma_chan *dma_chan = NULL;
+ struct regmap *misc = NULL;
+ unsigned int signal, request_num;
+ unsigned int reg = 0;
+ unsigned int offset = 0;
+
+ if (!hiedmac)
+ return NULL;
+
+ misc = hiedmac->misc_regmap;
+
+ if (dma_spec->args_count != 2) { /* check num of dts node args */
+ hiedmacv310_error("args count not true!");
+ return NULL;
+ }
+
+ request_num = dma_spec->args[0];
+ signal = dma_spec->args[1];
+
+ if (misc != NULL) {
+ offset = hiedmac->misc_ctrl_base + (request_num & (~0x3));
+ regmap_read(misc, offset, ®);
+ /* set misc for signal line */
+ reg &= ~(0x3f << ((request_num & 0x3) << 3));
+ reg |= signal << ((request_num & 0x3) << 3);
+ regmap_write(misc, offset, reg);
+ }
+
+ hiedmacv310_trace(HIEDMACV310_CONFIG_TRACE_LEVEL,
+ "offset = 0x%x, reg = 0x%x", offset, reg);
+
+ dma_chan = hiedmac_find_chan_id(hiedmac, request_num);
+ if (!dma_chan) {
+ hiedmacv310_error("DMA slave channel is not found!");
+ return NULL;
+ }
+
+ edmac_dma_chan = to_edamc_chan(dma_chan);
+ edmac_dma_chan->signal = request_num;
+ return dma_get_slave_channel(dma_chan);
+}
+
+static int hiedmacv310_devm_get(struct hiedmacv310_driver_data *hiedmac)
+{
+ struct platform_device *platdev = hiedmac->dev;
+ struct resource *res = NULL;
+
+ hiedmac->clk = devm_clk_get(&(platdev->dev), "apb_pclk");
+ if (IS_ERR(hiedmac->clk))
+ return PTR_ERR(hiedmac->clk);
+
+ hiedmac->axi_clk = devm_clk_get(&(platdev->dev), "axi_aclk");
+ if (IS_ERR(hiedmac->axi_clk))
+ return PTR_ERR(hiedmac->axi_clk);
+
+ hiedmac->irq = platform_get_irq(platdev, 0);
+ if (unlikely(hiedmac->irq < 0))
+ return -ENODEV;
+
+ hiedmac->rstc = devm_reset_control_get(&(platdev->dev), "dma-reset");
+ if (IS_ERR(hiedmac->rstc))
+ return PTR_ERR(hiedmac->rstc);
+
+ res = platform_get_resource(platdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ hiedmacv310_error("no reg resource");
+ return -ENODEV;
+ }
+
+ hiedmac->base = devm_ioremap_resource(&(platdev->dev), res);
+ if (IS_ERR(hiedmac->base))
+ return PTR_ERR(hiedmac->base);
+
+ return 0;
+}
+
+static int hiedmacv310_of_property_read(struct hiedmacv310_driver_data *hiedmac)
+{
+ struct platform_device *platdev = hiedmac->dev;
+ struct device_node *np = platdev->dev.of_node;
+ int ret;
+
+ hiedmac->misc_regmap = syscon_regmap_lookup_by_phandle(np, "hisi,misc-control");
+ if (IS_ERR(hiedmac->misc_regmap))
+ return PTR_ERR(hiedmac->misc_regmap);
+
+ ret = of_property_read_u32_index(np, "hisi,misc-control", 1,
+ &(hiedmac->misc_ctrl_base));
+ if (ret) {
+ hiedmacv310_error("get dma-misc_ctrl_base fail");
+ return -ENODEV;
+ }
+
+ ret = of_property_read_u32(np, "dma-channels", &(hiedmac->channels));
+ if (ret) {
+ hiedmacv310_error("get dma-channels fail");
+ return -ENODEV;
+ }
+ ret = of_property_read_u32(np, "dma-requests", &(hiedmac->slave_requests));
+ if (ret) {
+ hiedmacv310_error("get dma-requests fail");
+ return -ENODEV;
+ }
+ hiedmacv310_trace(HIEDMACV310_REG_TRACE_LEVEL, "dma-channels = %d, dma-requests = %d",
+ hiedmac->channels, hiedmac->slave_requests);
+ return 0;
+}
+
+static int get_of_probe(struct hiedmacv310_driver_data *hiedmac)
+{
+ struct platform_device *platdev = hiedmac->dev;
+ int ret;
+
+ ret = hiedmacv310_devm_get(hiedmac);
+ if (ret)
+ return ret;
+
+ ret = hiedmacv310_of_property_read(hiedmac);
+ if (ret)
+ return ret;
+
+ return of_dma_controller_register(platdev->dev.of_node,
+ hiedma_of_xlate, hiedmac);
+}
+
+static void hiedmac_free_chan_resources(struct dma_chan *chan)
+{
+ vchan_free_chan_resources(to_virt_chan(chan));
+}
+
+static size_t read_residue_from_phychan(
+ struct hiedmacv310_dma_chan *edmac_dma_chan,
+ struct transfer_desc *tsf_desc)
+{
+ size_t bytes;
+ u64 next_lli;
+ struct hiedmacv310_phy_chan *phychan = edmac_dma_chan->phychan;
+ unsigned int i, index;
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct hiedmac_lli *plli = NULL;
+
+ next_lli = (hiedmacv310_readl(hiedmac->base + hiedmac_cx_lli_l(phychan->id)) &
+ (~(HIEDMAC_LLI_ALIGN - 1)));
+ next_lli |= ((u64)(hiedmacv310_readl(hiedmac->base + hiedmac_cx_lli_h(
+ phychan->id)) & 0xffffffff) << BITS_PER_HALF_WORD);
+ bytes = hiedmacv310_readl(hiedmac->base + hiedmac_cx_curr_cnt0(
+ phychan->id));
+ if (next_lli != 0) {
+ /* It means lli mode */
+ bytes += tsf_desc->size;
+ index = (next_lli - tsf_desc->llis_busaddr) / sizeof(*plli);
+ plli = (struct hiedmac_lli *)(tsf_desc->llis_vaddr);
+ for (i = 0; i < index; i++)
+ bytes -= plli[i].count;
+ }
+ return bytes;
+}
+
+static enum dma_status hiedmac_tx_status(struct dma_chan *chan,
+ dma_cookie_t cookie,
+ struct dma_tx_state *txstate)
+{
+ enum dma_status ret;
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ struct virt_dma_desc *vd = NULL;
+ struct transfer_desc *tsf_desc = NULL;
+ unsigned long flags;
+ size_t bytes;
+
+ ret = dma_cookie_status(chan, cookie, txstate);
+ if (ret == DMA_COMPLETE)
+ return ret;
+
+ if (edmac_dma_chan->state == HIEDMAC_CHAN_PAUSED && ret == DMA_IN_PROGRESS) {
+ ret = DMA_PAUSED;
+ return ret;
+ }
+
+ spin_lock_irqsave(&edmac_dma_chan->virt_chan.lock, flags);
+ vd = vchan_find_desc(&edmac_dma_chan->virt_chan, cookie);
+ if (vd) {
+ /* no been trasfered */
+ tsf_desc = to_edmac_transfer_desc(&vd->tx);
+ bytes = tsf_desc->size;
+ } else {
+ /* trasfering */
+ tsf_desc = edmac_dma_chan->at;
+
+ if (!(edmac_dma_chan->phychan) || !tsf_desc) {
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ return ret;
+ }
+ bytes = read_residue_from_phychan(edmac_dma_chan, tsf_desc);
+ }
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ dma_set_residue(txstate, bytes);
+ return ret;
+}
+
+static struct hiedmacv310_phy_chan *hiedmac_get_phy_channel(
+ const struct hiedmacv310_driver_data *hiedmac,
+ struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ struct hiedmacv310_phy_chan *ch = NULL;
+ unsigned long flags;
+ int i;
+
+ for (i = 0; i < hiedmac->channels; i++) {
+ ch = &hiedmac->phy_chans[i];
+
+ spin_lock_irqsave(&ch->lock, flags);
+
+ if (!ch->serving) {
+ ch->serving = edmac_dma_chan;
+ spin_unlock_irqrestore(&ch->lock, flags);
+ break;
+ }
+ spin_unlock_irqrestore(&ch->lock, flags);
+ }
+
+ if (i == hiedmac->channels)
+ return NULL;
+
+ return ch;
+}
+
+static void hiedmac_write_lli(const struct hiedmacv310_driver_data *hiedmac,
+ const struct hiedmacv310_phy_chan *phychan,
+ const struct transfer_desc *tsf_desc)
+{
+ struct hiedmac_lli *plli = (struct hiedmac_lli *)tsf_desc->llis_vaddr;
+
+ if (plli->next_lli != 0x0)
+ hiedmacv310_writel((plli->next_lli & 0xffffffff) | HIEDMAC_LLI_ENABLE,
+ hiedmac->base + hiedmac_cx_lli_l(phychan->id));
+ else
+ hiedmacv310_writel((plli->next_lli & 0xffffffff),
+ hiedmac->base + hiedmac_cx_lli_l(phychan->id));
+
+ hiedmacv310_writel(((plli->next_lli >> 32) & 0xffffffff),
+ hiedmac->base + hiedmac_cx_lli_h(phychan->id));
+ hiedmacv310_writel(plli->count, hiedmac->base + hiedmac_cx_cnt0(phychan->id));
+ hiedmacv310_writel(plli->src_addr & 0xffffffff,
+ hiedmac->base + hiedmac_cx_src_addr_l(phychan->id));
+ hiedmacv310_writel((plli->src_addr >> 32) & 0xffffffff,
+ hiedmac->base + hiedmac_cx_src_addr_h(phychan->id));
+ hiedmacv310_writel(plli->dest_addr & 0xffffffff,
+ hiedmac->base + hiedmac_cx_dest_addr_l(phychan->id));
+ hiedmacv310_writel((plli->dest_addr >> 32) & 0xffffffff,
+ hiedmac->base + hiedmac_cx_dest_addr_h(phychan->id));
+ hiedmacv310_writel(plli->config,
+ hiedmac->base + hiedmac_cx_config(phychan->id));
+}
+
+static void hiedmac_start_next_txd(struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct hiedmacv310_phy_chan *phychan = edmac_dma_chan->phychan;
+ struct virt_dma_desc *vd = vchan_next_desc(&edmac_dma_chan->virt_chan);
+ struct transfer_desc *tsf_desc = to_edmac_transfer_desc(&vd->tx);
+ unsigned int val;
+
+ list_del(&tsf_desc->virt_desc.node);
+ edmac_dma_chan->at = tsf_desc;
+ hiedmac_write_lli(hiedmac, phychan, tsf_desc);
+ val = hiedmacv310_readl(hiedmac->base + hiedmac_cx_config(phychan->id));
+ hiedmacv310_trace(HIEDMACV310_REG_TRACE_LEVEL, " HIEDMAC_Cx_CONFIG = 0x%x", val);
+ hiedmacv310_writel(val | HIEDMAC_CXCONFIG_LLI_START,
+ hiedmac->base + hiedmac_cx_config(phychan->id));
+}
+
+static void hiedmac_start(struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct hiedmacv310_phy_chan *ch;
+
+ ch = hiedmac_get_phy_channel(hiedmac, edmac_dma_chan);
+ if (!ch) {
+ hiedmacv310_error("no phy channel available !");
+ edmac_dma_chan->state = HIEDMAC_CHAN_WAITING;
+ return;
+ }
+ edmac_dma_chan->phychan = ch;
+ edmac_dma_chan->state = HIEDMAC_CHAN_RUNNING;
+ hiedmac_start_next_txd(edmac_dma_chan);
+}
+
+static void hiedmac_issue_pending(struct dma_chan *chan)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ unsigned long flags;
+
+ spin_lock_irqsave(&edmac_dma_chan->virt_chan.lock, flags);
+ if (vchan_issue_pending(&edmac_dma_chan->virt_chan)) {
+ if (!edmac_dma_chan->phychan && edmac_dma_chan->state != HIEDMAC_CHAN_WAITING)
+ hiedmac_start(edmac_dma_chan);
+ }
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+}
+
+static void hiedmac_free_txd_list(struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ LIST_HEAD(head);
+
+ vchan_get_all_descriptors(&edmac_dma_chan->virt_chan, &head);
+ vchan_dma_desc_free_list(&edmac_dma_chan->virt_chan, &head);
+}
+
+static int hiedmac_config(struct dma_chan *chan,
+ struct dma_slave_config *config)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+
+ if (!edmac_dma_chan->slave) {
+ hiedmacv310_error("slave is null!");
+ return -EINVAL;
+ }
+ edmac_dma_chan->cfg = *config;
+ return 0;
+}
+
+static void hiedmac_pause_phy_chan(const struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct hiedmacv310_phy_chan *phychan = edmac_dma_chan->phychan;
+ unsigned int val;
+ int timeout;
+
+ val = hiedmacv310_readl(hiedmac->base + hiedmac_cx_config(phychan->id));
+ val &= ~CCFG_EN;
+ hiedmacv310_writel(val, hiedmac->base + hiedmac_cx_config(phychan->id));
+ /* Wait for channel inactive */
+ for (timeout = 2000; timeout > 0; timeout--) {
+ if (!((0x1 << phychan->id) & hiedmacv310_readl(hiedmac->base + HIEDMAC_CH_STAT)))
+ break;
+ hiedmacv310_writel(val, hiedmac->base + hiedmac_cx_config(phychan->id));
+ udelay(1);
+ }
+
+ if (timeout == 0) {
+ hiedmacv310_error(":channel%u timeout waiting for pause, timeout:%d",
+ phychan->id, timeout);
+ }
+}
+
+static int hiedmac_pause(struct dma_chan *chan)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ unsigned long flags;
+
+ spin_lock_irqsave(&edmac_dma_chan->virt_chan.lock, flags);
+ if (!edmac_dma_chan->phychan) {
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ return 0;
+ }
+ hiedmac_pause_phy_chan(edmac_dma_chan);
+ edmac_dma_chan->state = HIEDMAC_CHAN_PAUSED;
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ return 0;
+}
+
+static void hiedmac_resume_phy_chan(const struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct hiedmacv310_phy_chan *phychan = edmac_dma_chan->phychan;
+ unsigned int val;
+
+ val = hiedmacv310_readl(hiedmac->base + hiedmac_cx_config(phychan->id));
+ val |= CCFG_EN;
+ hiedmacv310_writel(val, hiedmac->base + hiedmac_cx_config(phychan->id));
+}
+
+static int hiedmac_resume(struct dma_chan *chan)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ unsigned long flags;
+
+ spin_lock_irqsave(&edmac_dma_chan->virt_chan.lock, flags);
+
+ if (!edmac_dma_chan->phychan) {
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ return 0;
+ }
+
+ hiedmac_resume_phy_chan(edmac_dma_chan);
+ edmac_dma_chan->state = HIEDMAC_CHAN_RUNNING;
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+
+ return 0;
+}
+
+void hiedmac_phy_free(struct hiedmacv310_dma_chan *chan);
+static void hiedmac_desc_free(struct virt_dma_desc *vd);
+static int hiedmac_terminate_all(struct dma_chan *chan)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ unsigned long flags;
+
+ spin_lock_irqsave(&edmac_dma_chan->virt_chan.lock, flags);
+ if (!edmac_dma_chan->phychan && !edmac_dma_chan->at) {
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+ return 0;
+ }
+
+ edmac_dma_chan->state = HIEDMAC_CHAN_IDLE;
+
+ if (edmac_dma_chan->phychan)
+ hiedmac_phy_free(edmac_dma_chan);
+ if (edmac_dma_chan->at) {
+ hiedmac_desc_free(&edmac_dma_chan->at->virt_desc);
+ edmac_dma_chan->at = NULL;
+ }
+ hiedmac_free_txd_list(edmac_dma_chan);
+ spin_unlock_irqrestore(&edmac_dma_chan->virt_chan.lock, flags);
+
+ return 0;
+}
+
+static u32 get_width(enum dma_slave_buswidth width)
+{
+ switch (width) {
+ case DMA_SLAVE_BUSWIDTH_1_BYTE:
+ return HIEDMAC_WIDTH_8BIT;
+ case DMA_SLAVE_BUSWIDTH_2_BYTES:
+ return HIEDMAC_WIDTH_16BIT;
+ case DMA_SLAVE_BUSWIDTH_4_BYTES:
+ return HIEDMAC_WIDTH_32BIT;
+ case DMA_SLAVE_BUSWIDTH_8_BYTES:
+ return HIEDMAC_WIDTH_64BIT;
+ default:
+ hiedmacv310_error("check here, width warning!");
+ return ~0;
+ }
+}
+
+static unsigned int hiedmac_set_config_value(enum dma_transfer_direction direction,
+ unsigned int addr_width,
+ unsigned int burst,
+ unsigned int signal)
+{
+ unsigned int config, width;
+
+ if (direction == DMA_MEM_TO_DEV)
+ config = HIEDMAC_CONFIG_SRC_INC;
+ else
+ config = HIEDMAC_CONFIG_DST_INC;
+
+ hiedmacv310_trace(HIEDMACV310_CONFIG_TRACE_LEVEL, "addr_width = 0x%x", addr_width);
+ width = get_width(addr_width);
+ hiedmacv310_trace(HIEDMACV310_CONFIG_TRACE_LEVEL, "width = 0x%x", width);
+ config |= width << HIEDMAC_CONFIG_SRC_WIDTH_SHIFT;
+ config |= width << HIEDMAC_CONFIG_DST_WIDTH_SHIFT;
+ hiedmacv310_trace(HIEDMACV310_REG_TRACE_LEVEL, "tsf_desc->ccfg = 0x%x", config);
+ hiedmacv310_trace(HIEDMACV310_CONFIG_TRACE_LEVEL, "burst = 0x%x", burst);
+ config |= burst << HIEDMAC_CONFIG_SRC_BURST_SHIFT;
+ config |= burst << HIEDMAC_CONFIG_DST_BURST_SHIFT;
+ if (signal >= 0) {
+ hiedmacv310_trace(HIEDMACV310_REG_TRACE_LEVEL,
+ "edmac_dma_chan->signal = %d", signal);
+ config |= (unsigned int)signal << HIEDMAC_CXCONFIG_SIGNAL_SHIFT;
+ }
+ config |= HIEDMAC_CXCONFIG_DEV_MEM_TYPE << HIEDMAC_CXCONFIG_TSF_TYPE_SHIFT;
+ return config;
+}
+
+static struct transfer_desc *hiedmac_init_tsf_desc(struct dma_chan *chan,
+ enum dma_transfer_direction direction,
+ dma_addr_t *slave_addr)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ struct transfer_desc *tsf_desc;
+ unsigned int burst = 0;
+ unsigned int addr_width = 0;
+ unsigned int maxburst = 0;
+
+ tsf_desc = kzalloc(sizeof(*tsf_desc), GFP_NOWAIT);
+ if (!tsf_desc)
+ return NULL;
+ if (direction == DMA_MEM_TO_DEV) {
+ *slave_addr = edmac_dma_chan->cfg.dst_addr;
+ addr_width = edmac_dma_chan->cfg.dst_addr_width;
+ maxburst = edmac_dma_chan->cfg.dst_maxburst;
+ } else if (direction == DMA_DEV_TO_MEM) {
+ *slave_addr = edmac_dma_chan->cfg.src_addr;
+ addr_width = edmac_dma_chan->cfg.src_addr_width;
+ maxburst = edmac_dma_chan->cfg.src_maxburst;
+ } else {
+ kfree(tsf_desc);
+ hiedmacv310_error("direction unsupported!");
+ return NULL;
+ }
+
+ if (maxburst > (HIEDMAC_MAX_BURST_WIDTH))
+ burst |= (HIEDMAC_MAX_BURST_WIDTH - 1);
+ else if (maxburst == 0)
+ burst |= HIEDMAC_MIN_BURST_WIDTH;
+ else
+ burst |= (maxburst - 1);
+
+ tsf_desc->ccfg = hiedmac_set_config_value(direction, addr_width,
+ burst, edmac_dma_chan->signal);
+ hiedmacv310_trace(HIEDMACV310_REG_TRACE_LEVEL, "tsf_desc->ccfg = 0x%x", tsf_desc->ccfg);
+ return tsf_desc;
+}
+
+static int hiedmac_fill_desc(const struct hiedmac_sg *dsg,
+ struct transfer_desc *tsf_desc,
+ unsigned int length, unsigned int num)
+{
+ struct hiedmac_lli *plli = NULL;
+
+ if (num >= MAX_TSFR_LLIS) {
+ hiedmacv310_error("lli out of range.");
+ return -ENOMEM;
+ }
+
+ plli = (struct hiedmac_lli *)(tsf_desc->llis_vaddr);
+ memset(&plli[num], 0x0, sizeof(*plli));
+
+ plli[num].src_addr = dsg->src_addr;
+ plli[num].dest_addr = dsg->dst_addr;
+ plli[num].config = tsf_desc->ccfg;
+ plli[num].count = length;
+ tsf_desc->size += length;
+
+ if (num > 0) {
+ plli[num - 1].next_lli = (tsf_desc->llis_busaddr + (num) * sizeof(
+ *plli)) & (~(HIEDMAC_LLI_ALIGN - 1));
+ plli[num - 1].next_lli |= HIEDMAC_LLI_ENABLE;
+ }
+ return 0;
+}
+
+static void free_dsg(struct list_head *dsg_head)
+{
+ struct hiedmac_sg *dsg = NULL;
+ struct hiedmac_sg *_dsg = NULL;
+
+ list_for_each_entry_safe(dsg, _dsg, dsg_head, node) {
+ list_del(&dsg->node);
+ kfree(dsg);
+ }
+}
+
+static int hiedmac_add_sg(struct list_head *sg_head,
+ dma_addr_t dst, dma_addr_t src,
+ size_t len)
+{
+ struct hiedmac_sg *dsg = NULL;
+
+ if (len == 0) {
+ hiedmacv310_error("Transfer length is 0.");
+ return -ENOMEM;
+ }
+
+ dsg = kzalloc(sizeof(*dsg), GFP_NOWAIT);
+ if (!dsg) {
+ free_dsg(sg_head);
+ hiedmacv310_error("alloc memory for dsg fail.");
+ return -ENOMEM;
+ }
+
+ list_add_tail(&dsg->node, sg_head);
+ dsg->src_addr = src;
+ dsg->dst_addr = dst;
+ dsg->len = len;
+ return 0;
+}
+
+static int hiedmac_add_sg_slave(struct list_head *sg_head,
+ dma_addr_t slave_addr, dma_addr_t addr,
+ size_t length,
+ enum dma_transfer_direction direction)
+{
+ dma_addr_t src = 0;
+ dma_addr_t dst = 0;
+
+ if (direction == DMA_MEM_TO_DEV) {
+ src = addr;
+ dst = slave_addr;
+ } else if (direction == DMA_DEV_TO_MEM) {
+ src = slave_addr;
+ dst = addr;
+ } else {
+ hiedmacv310_error("invali dma_transfer_direction.");
+ return -ENOMEM;
+ }
+ return hiedmac_add_sg(sg_head, dst, src, length);
+}
+
+static int hiedmac_fill_sg_for_slave(struct list_head *sg_head,
+ dma_addr_t slave_addr,
+ struct scatterlist *sgl,
+ unsigned int sg_len,
+ enum dma_transfer_direction direction)
+{
+ struct scatterlist *sg = NULL;
+ int tmp, ret;
+ size_t length;
+ dma_addr_t addr;
+
+ if (sgl == NULL) {
+ hiedmacv310_error("sgl is null!");
+ return -ENOMEM;
+ }
+
+ for_each_sg(sgl, sg, sg_len, tmp) {
+ addr = sg_dma_address(sg);
+ length = sg_dma_len(sg);
+ ret = hiedmac_add_sg_slave(sg_head, slave_addr, addr, length, direction);
+ if (ret)
+ break;
+ }
+ return ret;
+}
+
+static inline int hiedmac_fill_sg_for_memcpy(struct list_head *sg_head,
+ dma_addr_t dst, dma_addr_t src,
+ size_t len)
+{
+ return hiedmac_add_sg(sg_head, dst, src, len);
+}
+
+static int hiedmac_fill_sg_for_cyclic(struct list_head *sg_head,
+ dma_addr_t slave_addr,
+ dma_addr_t buf_addr, size_t buf_len,
+ size_t period_len,
+ enum dma_transfer_direction direction)
+{
+ size_t count_in_sg = 0;
+ size_t trans_bytes;
+ int ret;
+
+ while (count_in_sg < buf_len) {
+ trans_bytes = min(period_len, buf_len - count_in_sg);
+ count_in_sg += trans_bytes;
+ ret = hiedmac_add_sg_slave(sg_head, slave_addr,
+ buf_addr + count_in_sg,
+ count_in_sg, direction);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static inline unsigned short get_max_width(dma_addr_t ccfg)
+{
+ unsigned short src_width = (ccfg & HIEDMAC_CONTROL_SRC_WIDTH_MASK) >>
+ HIEDMAC_CONFIG_SRC_WIDTH_SHIFT;
+ unsigned short dst_width = (ccfg & HIEDMAC_CONTROL_DST_WIDTH_MASK) >>
+ HIEDMAC_CONFIG_DST_WIDTH_SHIFT;
+
+ return 1 << max(src_width, dst_width); /* to byte */
+}
+
+static int hiedmac_fill_asg_lli_for_desc(struct hiedmac_sg *dsg,
+ struct transfer_desc *tsf_desc,
+ unsigned int *lli_count)
+{
+ int ret;
+ unsigned short width = get_max_width(tsf_desc->ccfg);
+
+ while (dsg->len != 0) {
+ size_t lli_len = MAX_TRANSFER_BYTES;
+
+ lli_len = (lli_len / width) * width; /* bus width align */
+ lli_len = min(lli_len, dsg->len);
+ ret = hiedmac_fill_desc(dsg, tsf_desc, lli_len, *lli_count);
+ if (ret)
+ return ret;
+
+ if (tsf_desc->ccfg & HIEDMAC_CONFIG_SRC_INC)
+ dsg->src_addr += lli_len;
+ if (tsf_desc->ccfg & HIEDMAC_CONFIG_DST_INC)
+ dsg->dst_addr += lli_len;
+ dsg->len -= lli_len;
+ (*lli_count)++;
+ }
+ return 0;
+}
+
+static int hiedmac_fill_lli_for_desc(struct list_head *sg_head,
+ struct transfer_desc *tsf_desc)
+{
+ struct hiedmac_sg *dsg = NULL;
+ struct hiedmac_lli *last_plli = NULL;
+ unsigned int lli_count = 0;
+ int ret;
+
+ list_for_each_entry(dsg, sg_head, node) {
+ ret = hiedmac_fill_asg_lli_for_desc(dsg, tsf_desc, &lli_count);
+ if (ret)
+ return ret;
+ }
+
+ if (tsf_desc->cyclic) {
+ last_plli = (struct hiedmac_lli *)((uintptr_t)tsf_desc->llis_vaddr +
+ (lli_count - 1) * sizeof(*last_plli));
+ last_plli->next_lli = tsf_desc->llis_busaddr | HIEDMAC_LLI_ENABLE;
+ } else {
+ last_plli = (struct hiedmac_lli *)((uintptr_t)tsf_desc->llis_vaddr +
+ (lli_count - 1) * sizeof(*last_plli));
+ last_plli->next_lli = 0;
+ }
+ dump_lli(tsf_desc->llis_vaddr, lli_count);
+ return 0;
+}
+
+static struct dma_async_tx_descriptor *hiedmac_prep_slave_sg(
+ struct dma_chan *chan, struct scatterlist *sgl,
+ unsigned int sg_len, enum dma_transfer_direction direction,
+ unsigned long flags, void *context)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct transfer_desc *tsf_desc = NULL;
+ dma_addr_t slave_addr = 0;
+ int ret;
+ LIST_HEAD(sg_head);
+
+ if (sgl == NULL) {
+ hiedmacv310_error("sgl is null!");
+ return NULL;
+ }
+
+ tsf_desc = hiedmac_init_tsf_desc(chan, direction, &slave_addr);
+ if (!tsf_desc)
+ return NULL;
+
+ tsf_desc->llis_vaddr = dma_pool_alloc(hiedmac->pool, GFP_NOWAIT,
+ &tsf_desc->llis_busaddr);
+ if (!tsf_desc->llis_vaddr) {
+ hiedmacv310_error("malloc memory from pool fail !");
+ goto err_alloc_lli;
+ }
+
+ ret = hiedmac_fill_sg_for_slave(&sg_head, slave_addr, sgl, sg_len, direction);
+ if (ret)
+ goto err_fill_sg;
+ ret = hiedmac_fill_lli_for_desc(&sg_head, tsf_desc);
+ free_dsg(&sg_head);
+ if (ret)
+ goto err_fill_sg;
+ return vchan_tx_prep(&edmac_dma_chan->virt_chan, &tsf_desc->virt_desc, flags);
+
+err_fill_sg:
+ dma_pool_free(hiedmac->pool, tsf_desc->llis_vaddr, tsf_desc->llis_busaddr);
+err_alloc_lli:
+ kfree(tsf_desc);
+ return NULL;
+}
+
+static struct dma_async_tx_descriptor *hiedmac_prep_dma_memcpy(
+ struct dma_chan *chan, dma_addr_t dst, dma_addr_t src,
+ size_t len, unsigned long flags)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct transfer_desc *tsf_desc = NULL;
+ LIST_HEAD(sg_head);
+ u32 config = 0;
+ int ret;
+
+ if (!len)
+ return NULL;
+
+ tsf_desc = kzalloc(sizeof(*tsf_desc), GFP_NOWAIT);
+ if (tsf_desc == NULL) {
+ hiedmacv310_error("get tsf desc fail!");
+ return NULL;
+ }
+
+ tsf_desc->llis_vaddr = dma_pool_alloc(hiedmac->pool, GFP_NOWAIT,
+ &tsf_desc->llis_busaddr);
+ if (!tsf_desc->llis_vaddr) {
+ hiedmacv310_error("malloc memory from pool fail !");
+ goto err_alloc_lli;
+ }
+
+ config |= HIEDMAC_CONFIG_SRC_INC | HIEDMAC_CONFIG_DST_INC;
+ config |= HIEDMAC_CXCONFIG_MEM_TYPE << HIEDMAC_CXCONFIG_TSF_TYPE_SHIFT;
+ /* max burst width is 16 ,but reg value set 0xf */
+ config |= (HIEDMAC_MAX_BURST_WIDTH - 1) << HIEDMAC_CONFIG_SRC_BURST_SHIFT;
+ config |= (HIEDMAC_MAX_BURST_WIDTH - 1) << HIEDMAC_CONFIG_DST_BURST_SHIFT;
+ config |= HIEDMAC_MEM_BIT_WIDTH << HIEDMAC_CONFIG_SRC_WIDTH_SHIFT;
+ config |= HIEDMAC_MEM_BIT_WIDTH << HIEDMAC_CONFIG_DST_WIDTH_SHIFT;
+ tsf_desc->ccfg = config;
+ ret = hiedmac_fill_sg_for_memcpy(&sg_head, dst, src, len);
+ if (ret)
+ goto err_fill_sg;
+ ret = hiedmac_fill_lli_for_desc(&sg_head, tsf_desc);
+ free_dsg(&sg_head);
+ if (ret)
+ goto err_fill_sg;
+ return vchan_tx_prep(&edmac_dma_chan->virt_chan, &tsf_desc->virt_desc, flags);
+
+err_fill_sg:
+ dma_pool_free(hiedmac->pool, tsf_desc->llis_vaddr, tsf_desc->llis_busaddr);
+err_alloc_lli:
+ kfree(tsf_desc);
+ return NULL;
+}
+
+
+static struct dma_async_tx_descriptor *hiedmac_prep_dma_cyclic(
+ struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
+ size_t period_len, enum dma_transfer_direction direction,
+ unsigned long flags)
+{
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(chan);
+ struct hiedmacv310_driver_data *hiedmac = edmac_dma_chan->host;
+ struct transfer_desc *tsf_desc = NULL;
+ dma_addr_t slave_addr = 0;
+ LIST_HEAD(sg_head);
+ int ret;
+
+ tsf_desc = hiedmac_init_tsf_desc(chan, direction, &slave_addr);
+ if (!tsf_desc)
+ return NULL;
+
+ tsf_desc->llis_vaddr = dma_pool_alloc(hiedmac->pool, GFP_NOWAIT,
+ &tsf_desc->llis_busaddr);
+ if (!tsf_desc->llis_vaddr) {
+ hiedmacv310_error("malloc memory from pool fail !");
+ goto err_alloc_lli;
+ }
+
+ tsf_desc->cyclic = true;
+ ret = hiedmac_fill_sg_for_cyclic(&sg_head, slave_addr, buf_addr,
+ buf_len, period_len, direction);
+ if (ret)
+ goto err_fill_sg;
+ ret = hiedmac_fill_lli_for_desc(&sg_head, tsf_desc);
+ free_dsg(&sg_head);
+ if (ret)
+ goto err_fill_sg;
+ return vchan_tx_prep(&edmac_dma_chan->virt_chan, &tsf_desc->virt_desc, flags);
+
+err_fill_sg:
+ dma_pool_free(hiedmac->pool, tsf_desc->llis_vaddr, tsf_desc->llis_busaddr);
+err_alloc_lli:
+ kfree(tsf_desc);
+ return NULL;
+}
+
+static void hiedmac_phy_reassign(struct hiedmacv310_phy_chan *phy_chan,
+ struct hiedmacv310_dma_chan *chan)
+{
+ phy_chan->serving = chan;
+ chan->phychan = phy_chan;
+ chan->state = HIEDMAC_CHAN_RUNNING;
+
+ hiedmac_start_next_txd(chan);
+}
+
+static void hiedmac_terminate_phy_chan(struct hiedmacv310_driver_data *hiedmac,
+ const struct hiedmacv310_dma_chan *edmac_dma_chan)
+{
+ unsigned int val;
+ struct hiedmacv310_phy_chan *phychan = edmac_dma_chan->phychan;
+
+ hiedmac_pause_phy_chan(edmac_dma_chan);
+ val = 0x1 << phychan->id;
+ hiedmacv310_writel(val, hiedmac->base + HIEDMAC_INT_TC1_RAW);
+ hiedmacv310_writel(val, hiedmac->base + HIEDMAC_INT_ERR1_RAW);
+ hiedmacv310_writel(val, hiedmac->base + HIEDMAC_INT_ERR2_RAW);
+}
+
+void hiedmac_phy_free(struct hiedmacv310_dma_chan *chan)
+{
+ struct hiedmacv310_driver_data *hiedmac = chan->host;
+ struct hiedmacv310_dma_chan *p = NULL;
+ struct hiedmacv310_dma_chan *next = NULL;
+
+ list_for_each_entry(p, &hiedmac->memcpy.channels, virt_chan.chan.device_node) {
+ if (p->state == HIEDMAC_CHAN_WAITING) {
+ next = p;
+ break;
+ }
+ }
+
+ if (!next) {
+ list_for_each_entry(p, &hiedmac->slave.channels, virt_chan.chan.device_node) {
+ if (p->state == HIEDMAC_CHAN_WAITING) {
+ next = p;
+ break;
+ }
+ }
+ }
+ hiedmac_terminate_phy_chan(hiedmac, chan);
+
+ if (next) {
+ spin_lock(&next->virt_chan.lock);
+ hiedmac_phy_reassign(chan->phychan, next);
+ spin_unlock(&next->virt_chan.lock);
+ } else {
+ chan->phychan->serving = NULL;
+ }
+
+ chan->phychan = NULL;
+ chan->state = HIEDMAC_CHAN_IDLE;
+}
+
+static bool handle_irq(struct hiedmacv310_driver_data *hiedmac, int chan_id)
+{
+ struct hiedmacv310_dma_chan *chan = NULL;
+ struct hiedmacv310_phy_chan *phy_chan = NULL;
+ struct transfer_desc *tsf_desc = NULL;
+ unsigned int channel_tc_status;
+
+ phy_chan = &hiedmac->phy_chans[chan_id];
+ chan = phy_chan->serving;
+ if (!chan) {
+ hiedmacv310_error("error interrupt on chan: %d!", chan_id);
+ return 0;
+ }
+ tsf_desc = chan->at;
+
+ channel_tc_status = hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_TC1_RAW);
+ channel_tc_status = (channel_tc_status >> chan_id) & 0x01;
+ if (channel_tc_status)
+ hiedmacv310_writel(channel_tc_status << chan_id,
+ hiedmac->base + HIEDMAC_INT_TC1_RAW);
+
+ channel_tc_status = hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_TC2);
+ channel_tc_status = (channel_tc_status >> chan_id) & 0x01;
+ if (channel_tc_status)
+ hiedmacv310_writel(channel_tc_status << chan_id,
+ hiedmac->base + HIEDMAC_INT_TC2_RAW);
+
+ if ((hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_ERR1) |
+ hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_ERR2) |
+ hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_ERR3)) &
+ (1 << chan_id)) {
+ hiedmacv310_writel(1 << chan_id, hiedmac->base + HIEDMAC_INT_ERR1_RAW);
+ hiedmacv310_writel(1 << chan_id, hiedmac->base + HIEDMAC_INT_ERR2_RAW);
+ hiedmacv310_writel(1 << chan_id, hiedmac->base + HIEDMAC_INT_ERR3_RAW);
+ }
+
+ spin_lock(&chan->virt_chan.lock);
+
+ if (tsf_desc->cyclic) {
+ vchan_cyclic_callback(&tsf_desc->virt_desc);
+ spin_unlock(&chan->virt_chan.lock);
+ return 1;
+ }
+ chan->at = NULL;
+ tsf_desc->done = true;
+ vchan_cookie_complete(&tsf_desc->virt_desc);
+
+ if (vchan_next_desc(&chan->virt_chan))
+ hiedmac_start_next_txd(chan);
+ else
+ hiedmac_phy_free(chan);
+ spin_unlock(&chan->virt_chan.lock);
+ return 1;
+}
+
+static irqreturn_t hiemdacv310_irq(int irq, void *dev)
+{
+ struct hiedmacv310_driver_data *hiedmac = (struct hiedmacv310_driver_data *)dev;
+ u32 mask = 0;
+ unsigned int channel_status, temp, i;
+
+ channel_status = hiedmacv310_readl(hiedmac->base + HIEDMAC_INT_STAT);
+ if (!channel_status) {
+ hiedmacv310_error("channel_status = 0x%x", channel_status);
+ return IRQ_NONE;
+ }
+
+ for (i = 0; i < hiedmac->channels; i++) {
+ temp = (channel_status >> i) & 0x1;
+ if (temp)
+ mask |= handle_irq(hiedmac, i) << i;
+ }
+ return mask ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static inline void hiedmac_dma_slave_init(struct hiedmacv310_dma_chan *chan)
+{
+ chan->slave = true;
+}
+
+static void hiedmac_desc_free(struct virt_dma_desc *vd)
+{
+ struct transfer_desc *tsf_desc = to_edmac_transfer_desc(&vd->tx);
+ struct hiedmacv310_dma_chan *edmac_dma_chan = to_edamc_chan(vd->tx.chan);
+
+ dma_descriptor_unmap(&vd->tx);
+ dma_pool_free(edmac_dma_chan->host->pool, tsf_desc->llis_vaddr, tsf_desc->llis_busaddr);
+ kfree(tsf_desc);
+}
+
+static int hiedmac_init_virt_channels(struct hiedmacv310_driver_data *hiedmac,
+ struct dma_device *dmadev,
+ unsigned int channels, bool slave)
+{
+ struct hiedmacv310_dma_chan *chan = NULL;
+ int i;
+
+ INIT_LIST_HEAD(&dmadev->channels);
+ for (i = 0; i < channels; i++) {
+ chan = kzalloc(sizeof(struct hiedmacv310_dma_chan), GFP_KERNEL);
+ if (!chan) {
+ hiedmacv310_error("fail to allocate memory for virt channels!");
+ return -1;
+ }
+
+ chan->host = hiedmac;
+ chan->state = HIEDMAC_CHAN_IDLE;
+ chan->signal = -1;
+
+ if (slave) {
+ chan->id = i;
+ hiedmac_dma_slave_init(chan);
+ }
+ chan->virt_chan.desc_free = hiedmac_desc_free;
+ vchan_init(&chan->virt_chan, dmadev);
+ }
+ return 0;
+}
+
+static void hiedmac_free_virt_channels(struct dma_device *dmadev)
+{
+ struct hiedmacv310_dma_chan *chan = NULL;
+ struct hiedmacv310_dma_chan *next = NULL;
+
+ list_for_each_entry_safe(chan, next, &dmadev->channels, virt_chan.chan.device_node) {
+ list_del(&chan->virt_chan.chan.device_node);
+ kfree(chan);
+ }
+}
+
+static void hiedmacv310_prep_dma_device(struct platform_device *pdev,
+ struct hiedmacv310_driver_data *hiedmac)
+{
+ dma_cap_set(DMA_MEMCPY, hiedmac->memcpy.cap_mask);
+ hiedmac->memcpy.dev = &pdev->dev;
+ hiedmac->memcpy.device_free_chan_resources = hiedmac_free_chan_resources;
+ hiedmac->memcpy.device_prep_dma_memcpy = hiedmac_prep_dma_memcpy;
+ hiedmac->memcpy.device_tx_status = hiedmac_tx_status;
+ hiedmac->memcpy.device_issue_pending = hiedmac_issue_pending;
+ hiedmac->memcpy.device_config = hiedmac_config;
+ hiedmac->memcpy.device_pause = hiedmac_pause;
+ hiedmac->memcpy.device_resume = hiedmac_resume;
+ hiedmac->memcpy.device_terminate_all = hiedmac_terminate_all;
+ hiedmac->memcpy.directions = BIT(DMA_MEM_TO_MEM);
+ hiedmac->memcpy.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
+
+ dma_cap_set(DMA_SLAVE, hiedmac->slave.cap_mask);
+ dma_cap_set(DMA_CYCLIC, hiedmac->slave.cap_mask);
+ hiedmac->slave.dev = &pdev->dev;
+ hiedmac->slave.device_free_chan_resources = hiedmac_free_chan_resources;
+ hiedmac->slave.device_tx_status = hiedmac_tx_status;
+ hiedmac->slave.device_issue_pending = hiedmac_issue_pending;
+ hiedmac->slave.device_prep_slave_sg = hiedmac_prep_slave_sg;
+ hiedmac->slave.device_prep_dma_cyclic = hiedmac_prep_dma_cyclic;
+ hiedmac->slave.device_config = hiedmac_config;
+ hiedmac->slave.device_resume = hiedmac_resume;
+ hiedmac->slave.device_pause = hiedmac_pause;
+ hiedmac->slave.device_terminate_all = hiedmac_terminate_all;
+ hiedmac->slave.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+ hiedmac->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
+}
+
+static int hiedmacv310_init_chan(struct hiedmacv310_driver_data *hiedmac)
+{
+ int i, ret;
+
+ hiedmac->phy_chans = kzalloc((hiedmac->channels * sizeof(
+ struct hiedmacv310_phy_chan)),
+ GFP_KERNEL);
+ if (!hiedmac->phy_chans) {
+ hiedmacv310_error("malloc for phy chans fail!");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < hiedmac->channels; i++) {
+ struct hiedmacv310_phy_chan *phy_ch = &hiedmac->phy_chans[i];
+
+ phy_ch->id = i;
+ phy_ch->base = hiedmac->base + hiedmac_cx_base(i);
+ spin_lock_init(&phy_ch->lock);
+ phy_ch->serving = NULL;
+ }
+
+ ret = hiedmac_init_virt_channels(hiedmac, &hiedmac->memcpy, hiedmac->channels,
+ false);
+ if (ret) {
+ hiedmacv310_error("fail to init memory virt channels!");
+ goto free_phychans;
+ }
+
+ ret = hiedmac_init_virt_channels(hiedmac, &hiedmac->slave, hiedmac->slave_requests,
+ true);
+ if (ret) {
+ hiedmacv310_error("fail to init slave virt channels!");
+ goto free_memory_virt_channels;
+ }
+ return 0;
+
+free_memory_virt_channels:
+ hiedmac_free_virt_channels(&hiedmac->memcpy);
+free_phychans:
+ kfree(hiedmac->phy_chans);
+ return -ENOMEM;
+}
+
+static void hiedmacv310_free_chan(struct hiedmacv310_driver_data *hiedmac)
+{
+ hiedmac_free_virt_channels(&hiedmac->slave);
+ hiedmac_free_virt_channels(&hiedmac->memcpy);
+ kfree(hiedmac->phy_chans);
+}
+
+static void hiedmacv310_prep_phy_device(const struct hiedmacv310_driver_data *hiedmac)
+{
+ clk_prepare_enable(hiedmac->clk);
+ clk_prepare_enable(hiedmac->axi_clk);
+ reset_control_deassert(hiedmac->rstc);
+
+ hiedmacv310_writel(HIEDMAC_ALL_CHAN_CLR, hiedmac->base + HIEDMAC_INT_TC1_RAW);
+ hiedmacv310_writel(HIEDMAC_ALL_CHAN_CLR, hiedmac->base + HIEDMAC_INT_TC2_RAW);
+ hiedmacv310_writel(HIEDMAC_ALL_CHAN_CLR, hiedmac->base + HIEDMAC_INT_ERR1_RAW);
+ hiedmacv310_writel(HIEDMAC_ALL_CHAN_CLR, hiedmac->base + HIEDMAC_INT_ERR2_RAW);
+ hiedmacv310_writel(HIEDMAC_ALL_CHAN_CLR, hiedmac->base + HIEDMAC_INT_ERR3_RAW);
+ hiedmacv310_writel(HIEDMAC_INT_ENABLE_ALL_CHAN,
+ hiedmac->base + HIEDMAC_INT_TC1_MASK);
+ hiedmacv310_writel(HIEDMAC_INT_ENABLE_ALL_CHAN,
+ hiedmac->base + HIEDMAC_INT_TC2_MASK);
+ hiedmacv310_writel(HIEDMAC_INT_ENABLE_ALL_CHAN,
+ hiedmac->base + HIEDMAC_INT_ERR1_MASK);
+ hiedmacv310_writel(HIEDMAC_INT_ENABLE_ALL_CHAN,
+ hiedmac->base + HIEDMAC_INT_ERR2_MASK);
+ hiedmacv310_writel(HIEDMAC_INT_ENABLE_ALL_CHAN,
+ hiedmac->base + HIEDMAC_INT_ERR3_MASK);
+}
+
+static struct hiedmacv310_driver_data *hiedmacv310_prep_hiedmac_device(struct platform_device *pdev)
+{
+ int ret;
+ struct hiedmacv310_driver_data *hiedmac = NULL;
+ ssize_t transfer_size;
+
+ ret = dma_set_mask_and_coherent(&(pdev->dev), DMA_BIT_MASK(64));
+ if (ret)
+ return NULL;
+
+ hiedmac = kzalloc(sizeof(*hiedmac), GFP_KERNEL);
+ if (!hiedmac) {
+ hiedmacv310_error("malloc for hiedmac fail!");
+ return NULL;
+ }
+
+ hiedmac->dev = pdev;
+
+ ret = get_of_probe(hiedmac);
+ if (ret) {
+ hiedmacv310_error("get dts info fail!");
+ goto free_hiedmac;
+ }
+
+ hiedmacv310_prep_dma_device(pdev, hiedmac);
+ hiedmac->max_transfer_size = MAX_TRANSFER_BYTES;
+ transfer_size = MAX_TSFR_LLIS * EDMACV300_LLI_WORDS * sizeof(u32);
+
+ hiedmac->pool = dma_pool_create(DRIVER_NAME, &(pdev->dev),
+ transfer_size, EDMACV300_POOL_ALIGN, 0);
+ if (!hiedmac->pool) {
+ hiedmacv310_error("create pool fail!");
+ goto free_hiedmac;
+ }
+
+ ret = hiedmacv310_init_chan(hiedmac);
+ if (ret)
+ goto free_pool;
+
+ return hiedmac;
+
+free_pool:
+ dma_pool_destroy(hiedmac->pool);
+free_hiedmac:
+ kfree(hiedmac);
+ return NULL;
+}
+
+static void free_hiedmac_device(struct hiedmacv310_driver_data *hiedmac)
+{
+ hiedmacv310_free_chan(hiedmac);
+ dma_pool_destroy(hiedmac->pool);
+ kfree(hiedmac);
+}
+
+static int __init hiedmacv310_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct hiedmacv310_driver_data *hiedmac = NULL;
+
+ hiedmac = hiedmacv310_prep_hiedmac_device(pdev);
+ if (hiedmac == NULL)
+ return -ENOMEM;
+
+ ret = request_irq(hiedmac->irq, hiemdacv310_irq, 0, DRIVER_NAME, hiedmac);
+ if (ret) {
+ hiedmacv310_error("fail to request irq");
+ goto free_hiedmac;
+ }
+ hiedmacv310_prep_phy_device(hiedmac);
+ ret = dma_async_device_register(&hiedmac->memcpy);
+ if (ret) {
+ hiedmacv310_error("%s failed to register memcpy as an async device - %d",
+ __func__, ret);
+ goto free_irq_res;
+ }
+
+ ret = dma_async_device_register(&hiedmac->slave);
+ if (ret) {
+ hiedmacv310_error("%s failed to register slave as an async device - %d",
+ __func__, ret);
+ goto free_memcpy_device;
+ }
+ return 0;
+
+free_memcpy_device:
+ dma_async_device_unregister(&hiedmac->memcpy);
+free_irq_res:
+ free_irq(hiedmac->irq, hiedmac);
+free_hiedmac:
+ free_hiedmac_device(hiedmac);
+ return -ENOMEM;
+}
+
+static int hiemda_remove(struct platform_device *pdev)
+{
+ int err = 0;
+ return err;
+}
+
+static const struct of_device_id hiedmacv310_match[] = {
+ { .compatible = "hisilicon,hiedmacv310" },
+ {},
+};
+
+static struct platform_driver hiedmacv310_driver = {
+ .remove = hiemda_remove,
+ .driver = {
+ .name = "hiedmacv310",
+ .of_match_table = hiedmacv310_match,
+ },
+};
+
+static int __init hiedmacv310_init(void)
+{
+ return platform_driver_probe(&hiedmacv310_driver, hiedmacv310_probe);
+}
+subsys_initcall(hiedmacv310_init);
+
+static void __exit hiedmacv310_exit(void)
+{
+ platform_driver_unregister(&hiedmacv310_driver);
+}
+module_exit(hiedmacv310_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hisilicon");
diff --git a/drivers/dma/hiedmacv310.h b/drivers/dma/hiedmacv310.h
new file mode 100644
index 000000000000..99e1720263e3
--- /dev/null
+++ b/drivers/dma/hiedmacv310.h
@@ -0,0 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * The Hiedma Controller v310 Device Driver for HiSilicon
+ *
+ * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ */
+#ifndef __HIEDMACV310_H__
+#define __HIEDMACV310_H__
+
+/* debug control */
+#define HIEDMACV310_CONFIG_TRACE_LEVEL 3
+#define HIEDMACV310_TRACE_LEVEL 0
+#define HIEDMACV310_REG_TRACE_LEVEL 3
+
+#ifdef DEBUG_HIEDMAC
+#define hiedmacv310_trace(level, msg, a...) do { \
+ if ((level) >= HIEDMACV310_TRACE_LEVEL) { \
+ pr_info("%s: %d: " msg, __func__, __LINE__, ## a); \
+ } \
+} while (0)
+
+#define hiedmacv310_assert(cond) do { \
+ if (!(cond)) { \
+ pr_info("Assert:hiedmacv310:%s:%d\n", \
+ __func__, \
+ __LINE__); \
+ __WARN(); \
+ } \
+} while (0)
+
+#define hiedmacv310_error(s, a...) \
+ pr_err("hiedmacv310:%s:%d: " s, __func__, __LINE__, ## a)
+
+#define hiedmacv310_info(s, a...) \
+ pr_info("hiedmacv310:%s:%d: " s, __func__, __LINE__, ## a)
+
+#else
+
+#define hiedmacv310_trace(level, msg, a...)
+#define hiedmacv310_assert(cond)
+#define hiedmacv310_error(s, a...)
+
+#endif
+
+
+#define hiedmacv310_readl(addr) ((unsigned int)readl((void *)(addr)))
+
+#define hiedmacv310_writel(v, addr) writel(v, (void *)(addr))
+
+
+#define MAX_TRANSFER_BYTES 0xffff
+
+/* reg offset */
+#define HIEDMAC_INT_STAT 0x0
+#define HIEDMAC_INT_TC1 0x4
+#define HIEDMAC_INT_TC2 0x8
+#define HIEDMAC_INT_ERR1 0xc
+#define HIEDMAC_INT_ERR2 0x10
+#define HIEDMAC_INT_ERR3 0x14
+
+#define HIEDMAC_INT_TC1_MASK 0x18
+#define HIEDMAC_INT_TC2_MASK 0x1c
+#define HIEDMAC_INT_ERR1_MASK 0x20
+#define HIEDMAC_INT_ERR2_MASK 0x24
+#define HIEDMAC_INT_ERR3_MASK 0x28
+
+#define HIEDMAC_INT_TC1_RAW 0x600
+#define HIEDMAC_INT_TC2_RAW 0x608
+#define HIEDMAC_INT_ERR1_RAW 0x610
+#define HIEDMAC_INT_ERR2_RAW 0x618
+#define HIEDMAC_INT_ERR3_RAW 0x620
+
+#define hiedmac_cx_curr_cnt0(cn) (0x404 + (cn) * 0x20)
+#define hiedmac_cx_curr_src_addr_l(cn) (0x408 + (cn) * 0x20)
+#define hiedmac_cx_curr_src_addr_h(cn) (0x40c + (cn) * 0x20)
+#define hiedmac_cx_curr_dest_addr_l(cn) (0x410 + (cn) * 0x20)
+#define hiedmac_cx_curr_dest_addr_h(cn) (0x414 + (cn) * 0x20)
+
+#define HIEDMAC_CH_PRI 0x688
+#define HIEDMAC_CH_STAT 0x690
+#define HIEDMAC_DMA_CTRL 0x698
+
+#define hiedmac_cx_base(cn) (0x800 + (cn) * 0x40)
+#define hiedmac_cx_lli_l(cn) (0x800 + (cn) * 0x40)
+#define hiedmac_cx_lli_h(cn) (0x804 + (cn) * 0x40)
+#define hiedmac_cx_cnt0(cn) (0x81c + (cn) * 0x40)
+#define hiedmac_cx_src_addr_l(cn) (0x820 + (cn) * 0x40)
+#define hiedmac_cx_src_addr_h(cn) (0x824 + (cn) * 0x40)
+#define hiedmac_cx_dest_addr_l(cn) (0x828 + (cn) * 0x40)
+#define hiedmac_cx_dest_addr_h(cn) (0x82c + (cn) * 0x40)
+#define hiedmac_cx_config(cn) (0x830 + (cn) * 0x40)
+
+#define HIEDMAC_ALL_CHAN_CLR 0xff
+#define HIEDMAC_INT_ENABLE_ALL_CHAN 0xff
+
+
+#define HIEDMAC_CONFIG_SRC_INC (1 << 31)
+#define HIEDMAC_CONFIG_DST_INC (1 << 30)
+
+#define HIEDMAC_CONFIG_SRC_WIDTH_SHIFT 16
+#define HIEDMAC_CONFIG_DST_WIDTH_SHIFT 12
+#define HIEDMAC_WIDTH_8BIT 0b0
+#define HIEDMAC_WIDTH_16BIT 0b1
+#define HIEDMAC_WIDTH_32BIT 0b10
+#define HIEDMAC_WIDTH_64BIT 0b11
+#ifdef CONFIG_64BIT
+#define HIEDMAC_MEM_BIT_WIDTH HIEDMAC_WIDTH_64BIT
+#else
+#define HIEDMAC_MEM_BIT_WIDTH HIEDMAC_WIDTH_32BIT
+#endif
+
+#define HIEDMAC_MAX_BURST_WIDTH 16
+#define HIEDMAC_MIN_BURST_WIDTH 1
+#define HIEDMAC_CONFIG_SRC_BURST_SHIFT 24
+#define HIEDMAC_CONFIG_DST_BURST_SHIFT 20
+
+#define HIEDMAC_LLI_ALIGN 0x40
+#define HIEDMAC_LLI_DISABLE 0x0
+#define HIEDMAC_LLI_ENABLE 0x2
+
+#define HIEDMAC_CXCONFIG_SIGNAL_SHIFT 0x4
+#define HIEDMAC_CXCONFIG_MEM_TYPE 0x0
+#define HIEDMAC_CXCONFIG_DEV_MEM_TYPE 0x1
+#define HIEDMAC_CXCONFIG_TSF_TYPE_SHIFT 0x2
+#define HIEDMAC_CXCONFIG_LLI_START 0x1
+
+#define HIEDMAC_CXCONFIG_ITC_EN 0x1
+#define HIEDMAC_CXCONFIG_ITC_EN_SHIFT 0x1
+
+#define CCFG_EN 0x1
+
+#define HIEDMAC_CONTROL_SRC_WIDTH_MASK GENMASK(18, 16)
+#define HIEDMAC_CONTROL_DST_WIDTH_MASK GENMASK(14, 12)
+#endif
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings
2020-12-12 13:05 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
@ 2020-12-12 13:05 ` Dongjiu Geng
0 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2020-12-12 13:05 UTC (permalink / raw)
To: mturquette, sboyd, robh+dt, vkoul, dan.j.williams, p.zabel,
linux-clk, devicetree, linux-kernel, dmaengine, gengdongjiu
Add DT bindings documentation for hi3559a SoC clock.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
.../clock/hisilicon,hi3559av100-clock.yaml | 59 +++++++
include/dt-bindings/clock/hi3559av100-clock.h | 165 ++++++++++++++++++
2 files changed, 224 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
create mode 100644 include/dt-bindings/clock/hi3559av100-clock.h
diff --git a/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml b/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
new file mode 100644
index 000000000000..3ceb29cec704
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/hisilicon,hi3559av100-clock.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/hisilicon,hi3559av100-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon SOC Clock for HI3559AV100
+
+maintainers:
+ - Dongjiu Geng <gengdongjiu@huawei.com>
+
+description: |
+ Hisilicon SOC clock control module which supports the clocks, resets and
+ power domains on HI3559AV100.
+
+ See also:
+ dt-bindings/clock/hi3559av100-clock.h
+
+properties:
+ compatible:
+ enum:
+ - hisilicon,hi3559av100-clock
+ - hisilicon,hi3559av100-shub-clock
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 2
+ description: |
+ First cell is reset request register offset.
+ Second cell is bit offset in reset request register.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@12010000 {
+ compatible = "hisilicon,hi3559av100-clock";
+ #clock-cells = <1>;
+ #reset-cells = <2>;
+ reg = <0x0 0x12010000 0x0 0x10000>;
+ };
+ };
+...
diff --git a/include/dt-bindings/clock/hi3559av100-clock.h b/include/dt-bindings/clock/hi3559av100-clock.h
new file mode 100644
index 000000000000..5fe7689010a0
--- /dev/null
+++ b/include/dt-bindings/clock/hi3559av100-clock.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later or BSD-2-Clause */
+/*
+ * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.
+ *
+ * Author: Dongjiu Geng <gengdongjiu@huawei.com>
+ */
+
+#ifndef __DTS_HI3559AV100_CLOCK_H
+#define __DTS_HI3559AV100_CLOCK_H
+
+/* fixed rate */
+#define HI3559AV100_FIXED_1188M 1
+#define HI3559AV100_FIXED_1000M 2
+#define HI3559AV100_FIXED_842M 3
+#define HI3559AV100_FIXED_792M 4
+#define HI3559AV100_FIXED_750M 5
+#define HI3559AV100_FIXED_710M 6
+#define HI3559AV100_FIXED_680M 7
+#define HI3559AV100_FIXED_667M 8
+#define HI3559AV100_FIXED_631M 9
+#define HI3559AV100_FIXED_600M 10
+#define HI3559AV100_FIXED_568M 11
+#define HI3559AV100_FIXED_500M 12
+#define HI3559AV100_FIXED_475M 13
+#define HI3559AV100_FIXED_428M 14
+#define HI3559AV100_FIXED_400M 15
+#define HI3559AV100_FIXED_396M 16
+#define HI3559AV100_FIXED_300M 17
+#define HI3559AV100_FIXED_250M 18
+#define HI3559AV100_FIXED_198M 19
+#define HI3559AV100_FIXED_187p5M 20
+#define HI3559AV100_FIXED_150M 21
+#define HI3559AV100_FIXED_148p5M 22
+#define HI3559AV100_FIXED_125M 23
+#define HI3559AV100_FIXED_107M 24
+#define HI3559AV100_FIXED_100M 25
+#define HI3559AV100_FIXED_99M 26
+#define HI3559AV100_FIXED_74p25M 27
+#define HI3559AV100_FIXED_72M 28
+#define HI3559AV100_FIXED_60M 29
+#define HI3559AV100_FIXED_54M 30
+#define HI3559AV100_FIXED_50M 31
+#define HI3559AV100_FIXED_49p5M 32
+#define HI3559AV100_FIXED_37p125M 33
+#define HI3559AV100_FIXED_36M 34
+#define HI3559AV100_FIXED_32p4M 35
+#define HI3559AV100_FIXED_27M 36
+#define HI3559AV100_FIXED_25M 37
+#define HI3559AV100_FIXED_24M 38
+#define HI3559AV100_FIXED_12M 39
+#define HI3559AV100_FIXED_3M 40
+#define HI3559AV100_FIXED_1p6M 41
+#define HI3559AV100_FIXED_400K 42
+#define HI3559AV100_FIXED_100K 43
+#define HI3559AV100_FIXED_200M 44
+#define HI3559AV100_FIXED_75M 75
+
+#define HI3559AV100_I2C0_CLK 50
+#define HI3559AV100_I2C1_CLK 51
+#define HI3559AV100_I2C2_CLK 52
+#define HI3559AV100_I2C3_CLK 53
+#define HI3559AV100_I2C4_CLK 54
+#define HI3559AV100_I2C5_CLK 55
+#define HI3559AV100_I2C6_CLK 56
+#define HI3559AV100_I2C7_CLK 57
+#define HI3559AV100_I2C8_CLK 58
+#define HI3559AV100_I2C9_CLK 59
+#define HI3559AV100_I2C10_CLK 60
+#define HI3559AV100_I2C11_CLK 61
+
+#define HI3559AV100_SPI0_CLK 62
+#define HI3559AV100_SPI1_CLK 63
+#define HI3559AV100_SPI2_CLK 64
+#define HI3559AV100_SPI3_CLK 65
+#define HI3559AV100_SPI4_CLK 66
+#define HI3559AV100_SPI5_CLK 67
+#define HI3559AV100_SPI6_CLK 68
+
+#define HI3559AV100_EDMAC_CLK 69
+#define HI3559AV100_EDMAC_AXICLK 70
+#define HI3559AV100_EDMAC1_CLK 71
+#define HI3559AV100_EDMAC1_AXICLK 72
+#define HI3559AV100_VDMAC_CLK 73
+
+/* mux clocks */
+#define HI3559AV100_FMC_MUX 80
+#define HI3559AV100_SYSAPB_MUX 81
+#define HI3559AV100_UART_MUX 82
+#define HI3559AV100_SYSBUS_MUX 83
+#define HI3559AV100_A73_MUX 84
+#define HI3559AV100_MMC0_MUX 85
+#define HI3559AV100_MMC1_MUX 86
+#define HI3559AV100_MMC2_MUX 87
+#define HI3559AV100_MMC3_MUX 88
+
+/* gate clocks */
+#define HI3559AV100_FMC_CLK 90
+#define HI3559AV100_UART0_CLK 91
+#define HI3559AV100_UART1_CLK 92
+#define HI3559AV100_UART2_CLK 93
+#define HI3559AV100_UART3_CLK 94
+#define HI3559AV100_UART4_CLK 95
+#define HI3559AV100_MMC0_CLK 96
+#define HI3559AV100_MMC1_CLK 97
+#define HI3559AV100_MMC2_CLK 98
+#define HI3559AV100_MMC3_CLK 99
+
+#define HI3559AV100_ETH_CLK 100
+#define HI3559AV100_ETH_MACIF_CLK 101
+#define HI3559AV100_ETH1_CLK 102
+#define HI3559AV100_ETH1_MACIF_CLK 103
+
+/* complex */
+#define HI3559AV100_MAC0_CLK 110
+#define HI3559AV100_MAC1_CLK 111
+#define HI3559AV100_SATA_CLK 112
+#define HI3559AV100_USB_CLK 113
+#define HI3559AV100_USB1_CLK 114
+
+/* pll clocks */
+#define HI3559AV100_APLL_CLK 250
+#define HI3559AV100_GPLL_CLK 251
+
+#define HI3559AV100_CRG_NR_CLKS 256
+
+#define HI3559AV100_SHUB_SOURCE_SOC_24M 0
+#define HI3559AV100_SHUB_SOURCE_SOC_200M 1
+#define HI3559AV100_SHUB_SOURCE_SOC_300M 2
+#define HI3559AV100_SHUB_SOURCE_PLL 3
+#define HI3559AV100_SHUB_SOURCE_CLK 4
+
+#define HI3559AV100_SHUB_I2C0_CLK 10
+#define HI3559AV100_SHUB_I2C1_CLK 11
+#define HI3559AV100_SHUB_I2C2_CLK 12
+#define HI3559AV100_SHUB_I2C3_CLK 13
+#define HI3559AV100_SHUB_I2C4_CLK 14
+#define HI3559AV100_SHUB_I2C5_CLK 15
+#define HI3559AV100_SHUB_I2C6_CLK 16
+#define HI3559AV100_SHUB_I2C7_CLK 17
+
+#define HI3559AV100_SHUB_SPI_SOURCE_CLK 20
+#define HI3559AV100_SHUB_SPI4_SOURCE_CLK 21
+#define HI3559AV100_SHUB_SPI0_CLK 22
+#define HI3559AV100_SHUB_SPI1_CLK 23
+#define HI3559AV100_SHUB_SPI2_CLK 24
+#define HI3559AV100_SHUB_SPI3_CLK 25
+#define HI3559AV100_SHUB_SPI4_CLK 26
+
+#define HI3559AV100_SHUB_UART_CLK_32K 30
+#define HI3559AV100_SHUB_UART_SOURCE_CLK 31
+#define HI3559AV100_SHUB_UART_DIV_CLK 32
+#define HI3559AV100_SHUB_UART0_CLK 33
+#define HI3559AV100_SHUB_UART1_CLK 34
+#define HI3559AV100_SHUB_UART2_CLK 35
+#define HI3559AV100_SHUB_UART3_CLK 36
+#define HI3559AV100_SHUB_UART4_CLK 37
+#define HI3559AV100_SHUB_UART5_CLK 38
+#define HI3559AV100_SHUB_UART6_CLK 39
+
+#define HI3559AV100_SHUB_EDMAC_CLK 40
+
+#define HI3559AV100_SHUB_NR_CLKS 50
+
+#endif /* __DTS_HI3559AV100_CLOCK_H */
+
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-12-11 11:58 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-12-12 13:08 [PATCH v6 0/4] Enable Hi3559A SOC clock and HiSilicon Hiedma Controller Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 1/4] dt-bindings: Document the hi3559a clock bindings Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 2/4] clk: hisilicon: Add clock driver for hi3559A SoC Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 3/4] dt: bindings: dma: Add DT bindings for HiSilicon Hiedma Controller Dongjiu Geng
2020-12-12 13:08 ` [PATCH v6 4/4] dmaengine: dma: Add Hiedma Controller v310 Device Driver Dongjiu Geng
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