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clk: sunxi: implement clock driver for suniv f1c100s

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The f1c100s has a clock tree similar to those of other sunxi parts.
Add support for it.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Yifan Gu <me@yifangu.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
[Andre: add PIO and I2C]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
George Hilliard 2021-07-25 19:16:23 -04:00 committed by Andre Przywara
parent ce00370b87
commit 89dd650f20
3 changed files with 82 additions and 0 deletions
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7
drivers/clk/sunxi/Kconfig
View file

@ -10,6 +10,13 @@ config CLK_SUNXI
if CLK_SUNXI
config CLK_SUNIV_F1C100S
bool "Clock driver for Allwinner F1C100s"
default MACH_SUNIV
help
This enables common clock driver support for platforms based
on Allwinner F1C100s SoC.
config CLK_SUN4I_A10
bool "Clock driver for Allwinner A10/A20"
default MACH_SUN4I || MACH_SUN7I

1
drivers/clk/sunxi/Makefile
View file

@ -8,6 +8,7 @@ obj-$(CONFIG_CLK_SUNXI) += clk_sunxi.o
obj-$(CONFIG_CLK_SUNXI) += clk_sun6i_rtc.o
obj-$(CONFIG_CLK_SUNIV_F1C100S) += clk_f1c100s.o
obj-$(CONFIG_CLK_SUN4I_A10) += clk_a10.o
obj-$(CONFIG_CLK_SUN5I_A10S) += clk_a10s.o
obj-$(CONFIG_CLK_SUN6I_A31) += clk_a31.o

74
drivers/clk/sunxi/clk_f1c100s.c Normal file
View file

@ -0,0 +1,74 @@
// SPDX-License-Identifier: (GPL-2.0+)
/*
* Copyright (C) 2019 George Hilliard <thirtythreeforty@gmail.com>.
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <errno.h>
#include <clk/sunxi.h>
#include <dt-bindings/clock/suniv-ccu-f1c100s.h>
#include <dt-bindings/reset/suniv-ccu-f1c100s.h>
static struct ccu_clk_gate f1c100s_gates[] = {
[CLK_BUS_MMC0] = GATE(0x060, BIT(8)),
[CLK_BUS_MMC1] = GATE(0x060, BIT(9)),
[CLK_BUS_SPI0] = GATE(0x060, BIT(20)),
[CLK_BUS_SPI1] = GATE(0x060, BIT(21)),
[CLK_BUS_OTG] = GATE(0x060, BIT(24)),
[CLK_BUS_I2C0] = GATE(0x068, BIT(16)),
[CLK_BUS_I2C1] = GATE(0x068, BIT(17)),
[CLK_BUS_I2C2] = GATE(0x068, BIT(18)),
[CLK_BUS_PIO] = GATE(0x068, BIT(19)),
[CLK_BUS_UART0] = GATE(0x06c, BIT(20)),
[CLK_BUS_UART1] = GATE(0x06c, BIT(21)),
[CLK_BUS_UART2] = GATE(0x06c, BIT(22)),
[CLK_USB_PHY0] = GATE(0x0cc, BIT(1)),
};
static struct ccu_reset f1c100s_resets[] = {
[RST_USB_PHY0] = RESET(0x0cc, BIT(0)),
[RST_BUS_MMC0] = RESET(0x2c0, BIT(8)),
[RST_BUS_MMC1] = RESET(0x2c0, BIT(9)),
[RST_BUS_SPI0] = RESET(0x2c0, BIT(20)),
[RST_BUS_SPI1] = RESET(0x2c0, BIT(21)),
[RST_BUS_OTG] = RESET(0x2c0, BIT(24)),
[RST_BUS_I2C0] = RESET(0x2d0, BIT(16)),
[RST_BUS_I2C1] = RESET(0x2d0, BIT(17)),
[RST_BUS_I2C2] = RESET(0x2d0, BIT(18)),
[RST_BUS_UART0] = RESET(0x2d0, BIT(20)),
[RST_BUS_UART1] = RESET(0x2d0, BIT(21)),
[RST_BUS_UART2] = RESET(0x2d0, BIT(22)),
};
static const struct ccu_desc f1c100s_ccu_desc = {
.gates = f1c100s_gates,
.resets = f1c100s_resets,
};
static int f1c100s_clk_bind(struct udevice *dev)
{
return sunxi_reset_bind(dev, ARRAY_SIZE(f1c100s_resets));
}
static const struct udevice_id f1c100s_clk_ids[] = {
{ .compatible = "allwinner,suniv-f1c100s-ccu",
.data = (ulong)&f1c100s_ccu_desc },
{ }
};
U_BOOT_DRIVER(clk_suniv_f1c100s) = {
.name = "suniv_f1c100s_ccu",
.id = UCLASS_CLK,
.of_match = f1c100s_clk_ids,
.priv_auto = sizeof(struct ccu_priv),
.ops = &sunxi_clk_ops,
.probe = sunxi_clk_probe,
.bind = f1c100s_clk_bind,
};