[PATCH 16/17] clk: sunxi: Add support for H616 clocks

[André Przywara]

On 03/01/2021 09:26, Jernej Skrabec wrote:
> This commit introduces DM H616 clock driver.
> 
> Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>

Compared against the manual.

Reviewed-by: Andre Przywara <andre.przywara at arm.com>

Cheers,
Andre

> ---
>  drivers/clk/sunxi/Kconfig    |   7 ++
>  drivers/clk/sunxi/Makefile   |   1 +
>  drivers/clk/sunxi/clk_h616.c | 120 +++++++++++++++++++++++++++++++++++
>  3 files changed, 128 insertions(+)
>  create mode 100644 drivers/clk/sunxi/clk_h616.c
> 
> diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig
> index 5ff101b99305..bf084fa7a84a 100644
> --- a/drivers/clk/sunxi/Kconfig
> +++ b/drivers/clk/sunxi/Kconfig
> @@ -79,6 +79,13 @@ config CLK_SUN50I_H6
>  	  This enables common clock driver support for platforms based
>  	  on Allwinner H6 SoC.
>  
> +config CLK_SUN50I_H616
> +	bool "Clock driver for Allwinner H616"
> +	default MACH_SUN50I_H616
> +	help
> +	  This enables common clock driver support for platforms based
> +	  on Allwinner H616 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 36fb2aeb56c5..0dfc0593fb1c 100644
> --- a/drivers/clk/sunxi/Makefile
> +++ b/drivers/clk/sunxi/Makefile
> @@ -16,4 +16,5 @@ 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-$(CONFIG_CLK_SUN50I_H616) += clk_h616.o
>  obj-$(CONFIG_CLK_SUN50I_A64) += clk_a64.o
> diff --git a/drivers/clk/sunxi/clk_h616.c b/drivers/clk/sunxi/clk_h616.c
> new file mode 100644
> index 000000000000..e2e3a5c78c95
> --- /dev/null
> +++ b/drivers/clk/sunxi/clk_h616.c
> @@ -0,0 +1,120 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2021 Jernej Skrabec <jernej.skrabec at siol.net>
> + */
> +
> +#include <common.h>
> +#include <clk-uclass.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <asm/arch/ccu.h>
> +#include <dt-bindings/clock/sun50i-h616-ccu.h>
> +#include <dt-bindings/reset/sun50i-h616-ccu.h>
> +#include <linux/bitops.h>
> +
> +static struct ccu_clk_gate h616_gates[] = {
> +	[CLK_BUS_MMC0]		= GATE(0x84c, BIT(0)),
> +	[CLK_BUS_MMC1]		= GATE(0x84c, BIT(1)),
> +	[CLK_BUS_MMC2]		= GATE(0x84c, BIT(2)),
> +
> +	[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)),
> +	[CLK_BUS_UART4]		= GATE(0x90c, BIT(4)),
> +	[CLK_BUS_UART5]		= GATE(0x90c, BIT(5)),
> +
> +	[CLK_SPI0]		= GATE(0x940, BIT(31)),
> +	[CLK_SPI1]		= GATE(0x944, BIT(31)),
> +
> +	[CLK_BUS_SPI0]		= GATE(0x96c, BIT(0)),
> +	[CLK_BUS_SPI1]		= GATE(0x96c, BIT(1)),
> +
> +	[CLK_BUS_EMAC0]		= GATE(0x97c, BIT(0)),
> +	[CLK_BUS_EMAC1]		= GATE(0x97c, BIT(1)),
> +
> +	[CLK_USB_PHY0]		= GATE(0xa70, BIT(29)),
> +	[CLK_USB_OHCI0]		= GATE(0xa70, BIT(31)),
> +
> +	[CLK_USB_PHY1]		= GATE(0xa74, BIT(29)),
> +	[CLK_USB_OHCI1]		= GATE(0xa74, BIT(31)),
> +
> +	[CLK_USB_PHY2]		= GATE(0xa78, BIT(29)),
> +	[CLK_USB_OHCI2]		= GATE(0xa78, BIT(31)),
> +
> +	[CLK_USB_PHY3]		= GATE(0xa7c, BIT(29)),
> +	[CLK_USB_OHCI3]		= GATE(0xa7c, BIT(31)),
> +
> +	[CLK_BUS_OHCI0]		= GATE(0xa8c, BIT(0)),
> +	[CLK_BUS_OHCI1]		= GATE(0xa8c, BIT(1)),
> +	[CLK_BUS_OHCI2]		= GATE(0xa8c, BIT(2)),
> +	[CLK_BUS_OHCI3]		= GATE(0xa8c, BIT(3)),
> +	[CLK_BUS_EHCI0]		= GATE(0xa8c, BIT(4)),
> +	[CLK_BUS_EHCI1]		= GATE(0xa8c, BIT(5)),
> +	[CLK_BUS_EHCI2]		= GATE(0xa8c, BIT(6)),
> +	[CLK_BUS_EHCI3]		= GATE(0xa8c, BIT(7)),
> +	[CLK_BUS_OTG]		= GATE(0xa8c, BIT(8)),
> +};
> +
> +static struct ccu_reset h616_resets[] = {
> +	[RST_BUS_MMC0]		= RESET(0x84c, BIT(16)),
> +	[RST_BUS_MMC1]		= RESET(0x84c, BIT(17)),
> +	[RST_BUS_MMC2]		= RESET(0x84c, BIT(18)),
> +
> +	[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)),
> +	[RST_BUS_UART4]		= RESET(0x90c, BIT(20)),
> +	[RST_BUS_UART5]		= RESET(0x90c, BIT(21)),
> +
> +	[RST_BUS_SPI0]		= RESET(0x96c, BIT(16)),
> +	[RST_BUS_SPI1]		= RESET(0x96c, BIT(17)),
> +
> +	[RST_BUS_EMAC0]		= RESET(0x97c, BIT(16)),
> +	[RST_BUS_EMAC1]		= RESET(0x97c, BIT(17)),
> +
> +	[RST_USB_PHY0]		= RESET(0xa70, BIT(30)),
> +
> +	[RST_USB_PHY1]		= RESET(0xa74, BIT(30)),
> +
> +	[RST_USB_PHY2]		= RESET(0xa78, BIT(30)),
> +
> +	[RST_USB_PHY3]		= RESET(0xa7c, BIT(30)),
> +
> +	[RST_BUS_OHCI0]		= RESET(0xa8c, BIT(16)),
> +	[RST_BUS_OHCI1]		= RESET(0xa8c, BIT(17)),
> +	[RST_BUS_OHCI2]		= RESET(0xa8c, BIT(18)),
> +	[RST_BUS_OHCI3]		= RESET(0xa8c, BIT(19)),
> +	[RST_BUS_EHCI0]		= RESET(0xa8c, BIT(20)),
> +	[RST_BUS_EHCI1]		= RESET(0xa8c, BIT(21)),
> +	[RST_BUS_EHCI2]		= RESET(0xa8c, BIT(22)),
> +	[RST_BUS_EHCI3]		= RESET(0xa8c, BIT(23)),
> +	[RST_BUS_OTG]		= RESET(0xa8c, BIT(24)),
> +};
> +
> +static const struct ccu_desc h616_ccu_desc = {
> +	.gates = h616_gates,
> +	.resets = h616_resets,
> +};
> +
> +static int h616_clk_bind(struct udevice *dev)
> +{
> +	return sunxi_reset_bind(dev, ARRAY_SIZE(h616_resets));
> +}
> +
> +static const struct udevice_id h616_ccu_ids[] = {
> +	{ .compatible = "allwinner,sun50i-h616-ccu",
> +	  .data = (ulong)&h616_ccu_desc },
> +	{ }
> +};
> +
> +U_BOOT_DRIVER(clk_sun50i_h616) = {
> +	.name		= "sun50i_h616_ccu",
> +	.id		= UCLASS_CLK,
> +	.of_match	= h616_ccu_ids,
> +	.priv_auto_alloc_size	= sizeof(struct ccu_priv),
> +	.ops		= &sunxi_clk_ops,
> +	.probe		= sunxi_clk_probe,
> +	.bind		= h616_clk_bind,
> +};
>