On 2023/2/16 07:49, Jonas Karlman wrote:
Add support for rk3036 compatible.
Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
Reviewed-by: Kever Yang <kever.y...@rock-chips.com>
Thanks,
- Kever
---
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 897e79bcc60f..177c96983ed8 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++ = readb(efuse->base + EFUSE_DOUT);
+ 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,
