Add support for rk3036 compatible.
Signed-off-by: Jonas Karlman jonas@kwiboo.se Reviewed-by: Kever Yang kever.yang@rock-chips.com --- v2: - Use readl instead of readb - Collect r-b tag
drivers/misc/rockchip-efuse.c | 39 +++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
diff --git a/drivers/misc/rockchip-efuse.c b/drivers/misc/rockchip-efuse.c index bc73fd3baa10..60931a513121 100644 --- a/drivers/misc/rockchip-efuse.c +++ b/drivers/misc/rockchip-efuse.c @@ -18,6 +18,9 @@ #include <misc.h>
#define EFUSE_CTRL 0x0000 +#define RK3036_A_SHIFT 8 +#define RK3036_A_MASK GENMASK(15, 8) +#define RK3036_ADDR(n) ((n) << RK3036_A_SHIFT) #define RK3128_A_SHIFT 7 #define RK3128_A_MASK GENMASK(15, 7) #define RK3128_ADDR(n) ((n) << RK3128_A_SHIFT) @@ -86,6 +89,33 @@ U_BOOT_CMD( ); #endif
+static int rockchip_rk3036_efuse_read(struct udevice *dev, int offset, + void *buf, int size) +{ + struct rockchip_efuse_plat *efuse = dev_get_plat(dev); + u8 *buffer = buf; + + /* Switch to read mode */ + writel(EFUSE_LOAD, efuse->base + EFUSE_CTRL); + udelay(2); + + while (size--) { + clrsetbits_le32(efuse->base + EFUSE_CTRL, RK3036_A_MASK, + RK3036_ADDR(offset++)); + udelay(2); + setbits_le32(efuse->base + EFUSE_CTRL, EFUSE_STROBE); + udelay(2); + *buffer++ = (u8)(readl(efuse->base + EFUSE_DOUT) & 0xFF); + clrbits_le32(efuse->base + EFUSE_CTRL, EFUSE_STROBE); + udelay(2); + } + + /* Switch to inactive mode */ + writel(0x0, efuse->base + EFUSE_CTRL); + + return 0; +} + static int rockchip_rk3128_efuse_read(struct udevice *dev, int offset, void *buf, int size) { @@ -241,6 +271,11 @@ static int rockchip_efuse_of_to_plat(struct udevice *dev) return 0; }
+static const struct rockchip_efuse_data rk3036_data = { + .read = rockchip_rk3036_efuse_read, + .size = 0x20, +}; + static const struct rockchip_efuse_data rk3128_data = { .read = rockchip_rk3128_efuse_read, .size = 0x40, @@ -265,6 +300,10 @@ static const struct rockchip_efuse_data rk3399_data = { };
static const struct udevice_id rockchip_efuse_ids[] = { + { + .compatible = "rockchip,rk3036-efuse", + .data = (ulong)&rk3036_data, + }, { .compatible = "rockchip,rk3066a-efuse", .data = (ulong)&rk3288_data,