Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-28 23:51:33 +00:00
Code Issues Projects Releases Packages Wiki Activity

rockchip: otp: Add support for RK3588

Browse source 
Add support for rk3588 compatible.

Adjust offset using driver data in main read op.

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 22:44:39 +00:00 committed by Kever Yang
parent d58d55d242
commit f888098229
1 changed files with 57 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
drivers/misc/rockchip-otp.c
View file

@ -48,28 +48,41 @@
#define OTPC_TIMEOUT 10000
#define RK3588_OTPC_AUTO_CTRL 0x0004
#define RK3588_ADDR_SHIFT 16
#define RK3588_ADDR(n) ((n) << RK3588_ADDR_SHIFT)
#define RK3588_BURST_SHIFT 8
#define RK3588_BURST(n) ((n) << RK3588_BURST_SHIFT)
#define RK3588_OTPC_AUTO_EN 0x0008
#define RK3588_AUTO_EN BIT(0)
#define RK3588_OTPC_DOUT0 0x0020
#define RK3588_OTPC_INT_ST 0x0084
#define RK3588_RD_DONE BIT(1)
struct rockchip_otp_plat {
void __iomem *base;
};
struct rockchip_otp_data {
int (*read)(struct udevice *dev, int offset, void *buf, int size);
int offset;
int size;
int block_size;
};
static int rockchip_otp_poll_timeout(struct rockchip_otp_plat *otp, u32 flag)
static int rockchip_otp_poll_timeout(struct rockchip_otp_plat *otp,
u32 flag, u32 reg)
{
u32 status;
int ret;
ret = readl_poll_sleep_timeout(otp->base + OTPC_INT_STATUS, status,
ret = readl_poll_sleep_timeout(otp->base + reg, status,
(status & flag), 1, OTPC_TIMEOUT);
if (ret)
return ret;
/* Clear int flag */
writel(flag, otp->base + OTPC_INT_STATUS);
writel(flag, otp->base + reg);
return 0;
}
@ -90,7 +103,7 @@ static int rockchip_otp_ecc_enable(struct rockchip_otp_plat *otp, bool enable)
writel(SBPI_ENABLE_MASK | SBPI_ENABLE, otp->base + OTPC_SBPI_CTRL);
return rockchip_otp_poll_timeout(otp, OTPC_SBPI_DONE);
return rockchip_otp_poll_timeout(otp, OTPC_SBPI_DONE, OTPC_INT_STATUS);
}
static int rockchip_px30_otp_read(struct udevice *dev, int offset,
@ -113,7 +126,8 @@ static int rockchip_px30_otp_read(struct udevice *dev, int offset,
writel(OTPC_USER_FSM_ENABLE | OTPC_USER_FSM_ENABLE_MASK,
otp->base + OTPC_USER_ENABLE);
ret = rockchip_otp_poll_timeout(otp, OTPC_USER_DONE);
ret = rockchip_otp_poll_timeout(otp, OTPC_USER_DONE,
OTPC_INT_STATUS);
if (ret)
goto read_end;
@ -146,7 +160,8 @@ static int rockchip_rk3568_otp_read(struct udevice *dev, int offset,
writel(OTPC_USER_FSM_ENABLE | OTPC_USER_FSM_ENABLE_MASK,
otp->base + OTPC_USER_ENABLE);
ret = rockchip_otp_poll_timeout(otp, OTPC_USER_DONE);
ret = rockchip_otp_poll_timeout(otp, OTPC_USER_DONE,
OTPC_INT_STATUS);
if (ret)
goto read_end;
@ -159,6 +174,29 @@ read_end:
return ret;
}
static int rockchip_rk3588_otp_read(struct udevice *dev, int offset,
void *buf, int size)
{
struct rockchip_otp_plat *otp = dev_get_plat(dev);
u32 *buffer = buf;
int ret;
while (size--) {
writel(RK3588_ADDR(offset++) | RK3588_BURST(1),
otp->base + RK3588_OTPC_AUTO_CTRL);
writel(RK3588_AUTO_EN, otp->base + RK3588_OTPC_AUTO_EN);
ret = rockchip_otp_poll_timeout(otp, RK3588_RD_DONE,
RK3588_OTPC_INT_ST);
if (ret)
return ret;
*buffer++ = readl(otp->base + RK3588_OTPC_DOUT0);
}
return 0;
}
static int rockchip_otp_read(struct udevice *dev, int offset,
void *buf, int size)
{
@ -174,6 +212,8 @@ static int rockchip_otp_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);
@ -218,6 +258,13 @@ static const struct rockchip_otp_data rk3568_data = {
.block_size = 2,
};
static const struct rockchip_otp_data rk3588_data = {
.read = rockchip_rk3588_otp_read,
.offset = 0xC00,
.size = 0x400,
.block_size = 4,
};
static const struct udevice_id rockchip_otp_ids[] = {
{
.compatible = "rockchip,px30-otp",
@ -231,6 +278,10 @@ static const struct udevice_id rockchip_otp_ids[] = {
.compatible = "rockchip,rk3568-otp",
.data = (ulong)&rk3568_data,
},
{
.compatible = "rockchip,rk3588-otp",
.data = (ulong)&rk3588_data,
},
{}
};