Commit f0d70478 authored by David Wu's avatar David Wu Committed by Heiko Stuebner
Browse files

soc: rockchip: io-domain: Add RK3308 IO voltage domains 



Add IO voltage domains support for the RK3308 SoC.

Signed-off-by: default avatarDavid Wu <david.wu@rock-chips.com>
Signed-off-by: default avatarJianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: default avatarJonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-11-jonas@kwiboo.se


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent ff2bed59

drivers/soc/rockchip/io-domain.c

+40 −0
Original line number Diff line number Diff line
@@ -39,6 +39,10 @@ 
#define RK3288_SOC_CON2_FLASH0		BIT(7)

#define RK3288_SOC_FLASH_SUPPLY_NUM	2



#define RK3308_SOC_CON0			0x300

#define RK3308_SOC_CON0_VCCIO3		BIT(8)

#define RK3308_SOC_VCCIO3_SUPPLY_NUM	3



#define RK3328_SOC_CON4			0x410

#define RK3328_SOC_CON4_VCCIO2		BIT(7)

#define RK3328_SOC_VCCIO2_SUPPLY_NUM	1
@@ -229,6 +233,25 @@ static void rk3288_iodomain_init(struct rockchip_iodomain *iod) 
		dev_warn(iod->dev, "couldn't update flash0 ctrl\n");

}



static void rk3308_iodomain_init(struct rockchip_iodomain *iod)

{

	int ret;

	u32 val;



	/* if no vccio3 supply we should leave things alone */

	if (!iod->supplies[RK3308_SOC_VCCIO3_SUPPLY_NUM].reg)

		return;



	/*

	 * set vccio3 iodomain to also use this framework

	 * instead of a special gpio.

	 */

	val = RK3308_SOC_CON0_VCCIO3 | (RK3308_SOC_CON0_VCCIO3 << 16);

	ret = regmap_write(iod->grf, RK3308_SOC_CON0, val);

	if (ret < 0)

		dev_warn(iod->dev, "couldn't update vccio3 vsel ctrl\n");

}



static void rk3328_iodomain_init(struct rockchip_iodomain *iod)

{

	int ret;
@@ -376,6 +399,19 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3288 = { 
	.init = rk3288_iodomain_init,

};



static const struct rockchip_iodomain_soc_data soc_data_rk3308 = {

	.grf_offset = 0x300,

	.supply_names = {

		"vccio0",

		"vccio1",

		"vccio2",

		"vccio3",

		"vccio4",

		"vccio5",

	},

	.init = rk3308_iodomain_init,

};



static const struct rockchip_iodomain_soc_data soc_data_rk3328 = {

	.grf_offset = 0x410,

	.supply_names = {
@@ -528,6 +564,10 @@ static const struct of_device_id rockchip_iodomain_match[] = { 
		.compatible = "rockchip,rk3288-io-voltage-domain",

		.data = &soc_data_rk3288

	},

	{

		.compatible = "rockchip,rk3308-io-voltage-domain",

		.data = &soc_data_rk3308

	},

	{

		.compatible = "rockchip,rk3328-io-voltage-domain",

		.data = &soc_data_rk3328