Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

rockchip: efuse: Add support for RK3036

Browse source 
Add support for rk3036 compatible.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2023-02-22 22:44:40 +00:00 committed by Kever Yang
parent 16e8afa802
commit dd5684b878
1 changed files with 39 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
drivers/misc/rockchip-efuse.c
View file

@ -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,