On 10/01/2019 18:40, Jagan Teki wrote:
Add initial clock driver for Allwinner H6.
- Implement UART bus clocks via ccu_clk_gate table for H6, so it can accessed in common clk enable and disable functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for H6, so it can accessed in common reset deassert and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki jagan@amarulasolutions.com
Compared against the manual, boot tested on Pine H64.
Reviewed-by: Andre Przywara andre.przywara@arm.com
Cheers, Andre.
drivers/clk/sunxi/Kconfig | 7 +++++ drivers/clk/sunxi/Makefile | 1 + drivers/clk/sunxi/clk_h6.c | 53 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 61 insertions(+) create mode 100644 drivers/clk/sunxi/clk_h6.c
diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig index a6f84e9e56..cb11c7c21e 100644 --- a/drivers/clk/sunxi/Kconfig +++ b/drivers/clk/sunxi/Kconfig @@ -65,6 +65,13 @@ config CLK_SUN8I_H3 This enables common clock driver support for platforms based on Allwinner H3/H5 SoC.
+config CLK_SUN50I_H6
- bool "Clock driver for Allwinner H6"
- default MACH_SUN50I_H6
- help
This enables common clock driver support for platforms basedon Allwinner H6 SoC.config CLK_SUN50I_A64 bool "Clock driver for Allwinner A64" default MACH_SUN50I diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile index fbd43527a6..794aa2461c 100644 --- a/drivers/clk/sunxi/Makefile +++ b/drivers/clk/sunxi/Makefile @@ -14,4 +14,5 @@ obj-$(CONFIG_CLK_SUN8I_A83T) += clk_a83t.o obj-$(CONFIG_CLK_SUN8I_R40) += clk_r40.o obj-$(CONFIG_CLK_SUN8I_V3S) += clk_v3s.o obj-$(CONFIG_CLK_SUN8I_H3) += clk_h3.o +obj-$(CONFIG_CLK_SUN50I_H6) += clk_h6.o obj-$(CONFIG_CLK_SUN50I_A64) += clk_a64.o diff --git a/drivers/clk/sunxi/clk_h6.c b/drivers/clk/sunxi/clk_h6.c new file mode 100644 index 0000000000..0da3a40e3d --- /dev/null +++ b/drivers/clk/sunxi/clk_h6.c @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/*
- Copyright (C) 2018 Amarula Solutions.
- Author: Jagan Teki jagan@amarulasolutions.com
- */
+#include <common.h> +#include <clk-uclass.h> +#include <dm.h> +#include <errno.h> +#include <asm/arch/ccu.h> +#include <dt-bindings/clock/sun50i-h6-ccu.h> +#include <dt-bindings/reset/sun50i-h6-ccu.h>
+static struct ccu_clk_gate h6_gates[] = {
- [CLK_BUS_UART0] = GATE(0x90c, BIT(0)),
- [CLK_BUS_UART1] = GATE(0x90c, BIT(1)),
- [CLK_BUS_UART2] = GATE(0x90c, BIT(2)),
- [CLK_BUS_UART3] = GATE(0x90c, BIT(3)),
+};
+static struct ccu_reset h6_resets[] = {
- [RST_BUS_UART0] = RESET(0x90c, BIT(16)),
- [RST_BUS_UART1] = RESET(0x90c, BIT(17)),
- [RST_BUS_UART2] = RESET(0x90c, BIT(18)),
- [RST_BUS_UART3] = RESET(0x90c, BIT(19)),
+};
+static const struct ccu_desc h6_ccu_desc = {
- .gates = h6_gates,
- .resets = h6_resets,
+};
+static int h6_clk_bind(struct udevice *dev) +{
- return sunxi_reset_bind(dev, ARRAY_SIZE(h6_resets));
+}
+static const struct udevice_id h6_ccu_ids[] = {
- { .compatible = "allwinner,sun50i-h6-ccu",
.data = (ulong)&h6_ccu_desc },- { }
+};
+U_BOOT_DRIVER(clk_sun50i_h6) = {
- .name = "sun50i_h6_ccu",
- .id = UCLASS_CLK,
- .of_match = h6_ccu_ids,
- .priv_auto_alloc_size = sizeof(struct ccu_priv),
- .ops = &sunxi_clk_ops,
- .probe = sunxi_clk_probe,
- .bind = h6_clk_bind,
+};