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rockchip: efuse: Add support for RK3328 

Add support for rk3328 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 6f95b3e103
commit b0828cf989
1 changed files with 45 additions and 0 deletions
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45
drivers/misc/rockchip-efuse.c
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@ -13,6 +13,7 @@
#include <dm.h> #include <dm.h>
#include <linux/bitops.h> #include <linux/bitops.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/iopoll.h>
#include <malloc.h> #include <malloc.h>
#include <misc.h> #include <misc.h>
@ -31,6 +32,12 @@
#define EFUSE_STROBE BIT(1) #define EFUSE_STROBE BIT(1)
#define EFUSE_CSB BIT(0) #define EFUSE_CSB BIT(0)
#define EFUSE_DOUT 0x0004 #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 { struct rockchip_efuse_plat {
void __iomem *base; void __iomem *base;
@ -38,6 +45,7 @@ struct rockchip_efuse_plat {
struct rockchip_efuse_data { struct rockchip_efuse_data {
int (*read)(struct udevice *dev, int offset, void *buf, int size); int (*read)(struct udevice *dev, int offset, void *buf, int size);
int offset;
int size; int size;
int block_size; int block_size;
}; };
@ -103,6 +111,30 @@ static int rockchip_rk3288_efuse_read(struct udevice *dev, int offset,
return 0; 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, static int rockchip_rk3399_efuse_read(struct udevice *dev, int offset,
void *buf, int size) void *buf, int size)
{ {
@ -144,6 +176,8 @@ static int rockchip_efuse_read(struct udevice *dev, int offset,
if (!data->read) if (!data->read)
return -ENOSYS; return -ENOSYS;
offset += data->offset;
if (data->block_size <= 1) if (data->block_size <= 1)
return data->read(dev, offset, buf, size); return data->read(dev, offset, buf, size);
@ -182,6 +216,13 @@ static const struct rockchip_efuse_data rk3288_data = {
.size = 0x20, .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 = { static const struct rockchip_efuse_data rk3399_data = {
.read = rockchip_rk3399_efuse_read, .read = rockchip_rk3399_efuse_read,
.size = 0x80, .size = 0x80,
@ -205,6 +246,10 @@ static const struct udevice_id rockchip_efuse_ids[] = {
.compatible = "rockchip,rk3288-efuse", .compatible = "rockchip,rk3288-efuse",
.data = (ulong)&rk3288_data, .data = (ulong)&rk3288_data,
}, },
{
.compatible = "rockchip,rk3328-efuse",
.data = (ulong)&rk3328_data,
},
{ {
.compatible = "rockchip,rk3399-efuse", .compatible = "rockchip,rk3399-efuse",
.data = (ulong)&rk3399_data, .data = (ulong)&rk3399_data,