[PATCH 1/7] clk: sunxi: implement clock driver for suniv f1c100s

Andre Przywara
2022-05-03T21:21:28Z

From: George Hilliard <thirtythreeforty@gmail.com>

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>
---
drivers/clk/sunxi/Kconfig | 7 ++++
drivers/clk/sunxi/Makefile | 1 +
drivers/clk/sunxi/clk_f1c100s.c | 74 +++++++++++++++++++++++++++++++++
3 files changed, 82 insertions(+)
create mode 100644 drivers/clk/sunxi/clk_f1c100s.c

diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig
index f19908113e1..bf11fad6eef 100644
--- a/drivers/clk/sunxi/Kconfig
+++ b/drivers/clk/sunxi/Kconfig
@@ -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
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index 48a48a2f000..895da02ebea 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -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
diff --git a/drivers/clk/sunxi/clk_f1c100s.c b/drivers/clk/sunxi/clk_f1c100s.c
new file mode 100644
index 00000000000..72cf8a6e5c0
--- /dev/null
+++ b/drivers/clk/sunxi/clk_f1c100s.c
@@ -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,
+};
--
2.35.3