From 23c83366f326fb88dd4ec40315ebae14df55ebc0 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 12 Sep 2021 09:47:25 -0500 Subject: clk: sunxi: Add drivers for A31 and H6 PRCM CCUs Add a driver so the clocks/resets for these peripherals (especially I2C, RSB, and UART) can be enabled using the normal uclass methods. Signed-off-by: Samuel Holland Reviewed-by: Andre Przywara Signed-off-by: Andre Przywara --- drivers/clk/sunxi/Kconfig | 14 ++++++++++ drivers/clk/sunxi/Makefile | 2 ++ drivers/clk/sunxi/clk_a31_r.c | 59 +++++++++++++++++++++++++++++++++++++++++ drivers/clk/sunxi/clk_h6_r.c | 61 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 136 insertions(+) create mode 100644 drivers/clk/sunxi/clk_a31_r.c create mode 100644 drivers/clk/sunxi/clk_h6_r.c diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig index bf084fa7a8..f89c7ffd42 100644 --- a/drivers/clk/sunxi/Kconfig +++ b/drivers/clk/sunxi/Kconfig @@ -30,6 +30,13 @@ config CLK_SUN6I_A31 This enables common clock driver support for platforms based on Allwinner A31/A31s SoC. +config CLK_SUN6I_A31_R + bool "Clock driver for Allwinner A31 generation PRCM" + default SUNXI_GEN_SUN6I + help + This enables common clock driver support for the PRCM + in Allwinner A31/A31s/A23/A33/A83T/H3/A64/H5 SoCs. + config CLK_SUN8I_A23 bool "Clock driver for Allwinner A23/A33" default MACH_SUN8I_A23 || MACH_SUN8I_A33 @@ -79,6 +86,13 @@ config CLK_SUN50I_H6 This enables common clock driver support for platforms based on Allwinner H6 SoC. +config CLK_SUN50I_H6_R + bool "Clock driver for Allwinner H6 generation PRCM" + default SUN50I_GEN_H6 + help + This enables common clock driver support for the PRCM + in Allwinner H6/H616 SoCs. + config CLK_SUN50I_H616 bool "Clock driver for Allwinner H616" default MACH_SUN50I_H616 diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile index 4f9282a8b9..48a48a2f00 100644 --- a/drivers/clk/sunxi/Makefile +++ b/drivers/clk/sunxi/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_CLK_SUNXI) += clk_sun6i_rtc.o obj-$(CONFIG_CLK_SUN4I_A10) += clk_a10.o obj-$(CONFIG_CLK_SUN5I_A10S) += clk_a10s.o obj-$(CONFIG_CLK_SUN6I_A31) += clk_a31.o +obj-$(CONFIG_CLK_SUN6I_A31_R) += clk_a31_r.o obj-$(CONFIG_CLK_SUN8I_A23) += clk_a23.o obj-$(CONFIG_CLK_SUN8I_A83T) += clk_a83t.o obj-$(CONFIG_CLK_SUN8I_R40) += clk_r40.o @@ -18,5 +19,6 @@ obj-$(CONFIG_CLK_SUN8I_V3S) += clk_v3s.o obj-$(CONFIG_CLK_SUN9I_A80) += clk_a80.o obj-$(CONFIG_CLK_SUN8I_H3) += clk_h3.o obj-$(CONFIG_CLK_SUN50I_H6) += clk_h6.o +obj-$(CONFIG_CLK_SUN50I_H6_R) += clk_h6_r.o obj-$(CONFIG_CLK_SUN50I_H616) += clk_h616.o obj-$(CONFIG_CLK_SUN50I_A64) += clk_a64.o diff --git a/drivers/clk/sunxi/clk_a31_r.c b/drivers/clk/sunxi/clk_a31_r.c new file mode 100644 index 0000000000..1f08ea956f --- /dev/null +++ b/drivers/clk/sunxi/clk_a31_r.c @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (C) Samuel Holland + */ + +#include +#include +#include +#include +#include +#include + +static struct ccu_clk_gate a31_r_gates[] = { + [CLK_APB0_PIO] = GATE(0x028, BIT(0)), + [CLK_APB0_IR] = GATE(0x028, BIT(1)), + [CLK_APB0_TIMER] = GATE(0x028, BIT(2)), + [CLK_APB0_RSB] = GATE(0x028, BIT(3)), + [CLK_APB0_UART] = GATE(0x028, BIT(4)), + [CLK_APB0_I2C] = GATE(0x028, BIT(6)), + [CLK_APB0_TWD] = GATE(0x028, BIT(7)), +}; + +static struct ccu_reset a31_r_resets[] = { + [RST_APB0_IR] = RESET(0x0b0, BIT(1)), + [RST_APB0_TIMER] = RESET(0x0b0, BIT(2)), + [RST_APB0_RSB] = RESET(0x0b0, BIT(3)), + [RST_APB0_UART] = RESET(0x0b0, BIT(4)), + [RST_APB0_I2C] = RESET(0x0b0, BIT(6)), +}; + +static const struct ccu_desc a31_r_ccu_desc = { + .gates = a31_r_gates, + .resets = a31_r_resets, +}; + +static int a31_r_clk_bind(struct udevice *dev) +{ + return sunxi_reset_bind(dev, ARRAY_SIZE(a31_r_resets)); +} + +static const struct udevice_id a31_r_clk_ids[] = { + { .compatible = "allwinner,sun8i-a83t-r-ccu", + .data = (ulong)&a31_r_ccu_desc }, + { .compatible = "allwinner,sun8i-h3-r-ccu", + .data = (ulong)&a31_r_ccu_desc }, + { .compatible = "allwinner,sun50i-a64-r-ccu", + .data = (ulong)&a31_r_ccu_desc }, + { } +}; + +U_BOOT_DRIVER(clk_sun6i_a31_r) = { + .name = "sun6i_a31_r_ccu", + .id = UCLASS_CLK, + .of_match = a31_r_clk_ids, + .priv_auto = sizeof(struct ccu_priv), + .ops = &sunxi_clk_ops, + .probe = sunxi_clk_probe, + .bind = a31_r_clk_bind, +}; diff --git a/drivers/clk/sunxi/clk_h6_r.c b/drivers/clk/sunxi/clk_h6_r.c new file mode 100644 index 0000000000..b9e527e16a --- /dev/null +++ b/drivers/clk/sunxi/clk_h6_r.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (C) Samuel Holland + */ + +#include +#include +#include +#include +#include +#include + +static struct ccu_clk_gate h6_r_gates[] = { + [CLK_R_APB1_TIMER] = GATE(0x11c, BIT(0)), + [CLK_R_APB1_TWD] = GATE(0x12c, BIT(0)), + [CLK_R_APB1_PWM] = GATE(0x13c, BIT(0)), + [CLK_R_APB2_UART] = GATE(0x18c, BIT(0)), + [CLK_R_APB2_I2C] = GATE(0x19c, BIT(0)), + [CLK_R_APB2_RSB] = GATE(0x1bc, BIT(0)), + [CLK_R_APB1_IR] = GATE(0x1cc, BIT(0)), + [CLK_R_APB1_W1] = GATE(0x1ec, BIT(0)), +}; + +static struct ccu_reset h6_r_resets[] = { + [RST_R_APB1_TIMER] = RESET(0x11c, BIT(16)), + [RST_R_APB1_TWD] = RESET(0x12c, BIT(16)), + [RST_R_APB1_PWM] = RESET(0x13c, BIT(16)), + [RST_R_APB2_UART] = RESET(0x18c, BIT(16)), + [RST_R_APB2_I2C] = RESET(0x19c, BIT(16)), + [RST_R_APB2_RSB] = RESET(0x1bc, BIT(16)), + [RST_R_APB1_IR] = RESET(0x1cc, BIT(16)), + [RST_R_APB1_W1] = RESET(0x1ec, BIT(16)), +}; + +static const struct ccu_desc h6_r_ccu_desc = { + .gates = h6_r_gates, + .resets = h6_r_resets, +}; + +static int h6_r_clk_bind(struct udevice *dev) +{ + return sunxi_reset_bind(dev, ARRAY_SIZE(h6_r_resets)); +} + +static const struct udevice_id h6_r_clk_ids[] = { + { .compatible = "allwinner,sun50i-h6-r-ccu", + .data = (ulong)&h6_r_ccu_desc }, + { .compatible = "allwinner,sun50i-h616-r-ccu", + .data = (ulong)&h6_r_ccu_desc }, + { } +}; + +U_BOOT_DRIVER(clk_sun6i_h6_r) = { + .name = "sun6i_h6_r_ccu", + .id = UCLASS_CLK, + .of_match = h6_r_clk_ids, + .priv_auto = sizeof(struct ccu_priv), + .ops = &sunxi_clk_ops, + .probe = sunxi_clk_probe, + .bind = h6_r_clk_bind, +}; -- cgit v1.2.3