From b0828cf98901c993f7a88ef8f5b7f97a1c0c5d51 Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Wed, 22 Feb 2023 22:44:40 +0000 Subject: [PATCH] rockchip: efuse: Add support for RK3328 Add support for rk3328 compatible. Signed-off-by: Jonas Karlman Reviewed-by: Kever Yang --- drivers/misc/rockchip-efuse.c | 45 +++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/drivers/misc/rockchip-efuse.c b/drivers/misc/rockchip-efuse.c index 99220d5b1e..8cf61e36ae 100644 --- a/drivers/misc/rockchip-efuse.c +++ b/drivers/misc/rockchip-efuse.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -31,6 +32,12 @@ #define EFUSE_STROBE BIT(1) #define EFUSE_CSB BIT(0) #define EFUSE_DOUT 0x0004 +#define RK3328_INT_STATUS 0x0018 +#define RK3328_INT_FINISH BIT(0) +#define RK3328_DOUT 0x0020 +#define RK3328_AUTO_CTRL 0x0024 +#define RK3328_AUTO_RD BIT(1) +#define RK3328_AUTO_ENB BIT(0) struct rockchip_efuse_plat { void __iomem *base; @@ -38,6 +45,7 @@ struct rockchip_efuse_plat { struct rockchip_efuse_data { int (*read)(struct udevice *dev, int offset, void *buf, int size); + int offset; int size; int block_size; }; @@ -103,6 +111,30 @@ static int rockchip_rk3288_efuse_read(struct udevice *dev, int offset, return 0; } +static int rockchip_rk3328_efuse_read(struct udevice *dev, int offset, + void *buf, int size) +{ + struct rockchip_efuse_plat *efuse = dev_get_plat(dev); + u32 status, *buffer = buf; + int ret; + + while (size--) { + writel(RK3328_AUTO_RD | RK3328_AUTO_ENB | RK3399_ADDR(offset++), + efuse->base + RK3328_AUTO_CTRL); + udelay(1); + + ret = readl_poll_sleep_timeout(efuse->base + RK3328_INT_STATUS, + status, (status & RK3328_INT_FINISH), 1, 50); + if (ret) + return ret; + + *buffer++ = readl(efuse->base + RK3328_DOUT); + writel(RK3328_INT_FINISH, efuse->base + RK3328_INT_STATUS); + } + + return 0; +} + static int rockchip_rk3399_efuse_read(struct udevice *dev, int offset, void *buf, int size) { @@ -144,6 +176,8 @@ static int rockchip_efuse_read(struct udevice *dev, int offset, if (!data->read) return -ENOSYS; + offset += data->offset; + if (data->block_size <= 1) return data->read(dev, offset, buf, size); @@ -182,6 +216,13 @@ static const struct rockchip_efuse_data rk3288_data = { .size = 0x20, }; +static const struct rockchip_efuse_data rk3328_data = { + .read = rockchip_rk3328_efuse_read, + .offset = 0x60, + .size = 0x20, + .block_size = 4, +}; + static const struct rockchip_efuse_data rk3399_data = { .read = rockchip_rk3399_efuse_read, .size = 0x80, @@ -205,6 +246,10 @@ static const struct udevice_id rockchip_efuse_ids[] = { .compatible = "rockchip,rk3288-efuse", .data = (ulong)&rk3288_data, }, + { + .compatible = "rockchip,rk3328-efuse", + .data = (ulong)&rk3328_data, + }, { .compatible = "rockchip,rk3399-efuse", .data = (ulong)&rk3399_data, -- 2.39.5