| Message ID | 20230215234853.2624074-8-jonas@kwiboo.se |
|---|---|
| State | Superseded |
| Delegated to: | Kever Yang |
| Headers | show |
| Series | rockchip: Add efuse and otp support to more SoCs | expand |
On 2023/2/16 07:48, Jonas Karlman wrote: > Add support for rk3328 compatible. > > Signed-off-by: Jonas Karlman <jonas@kwiboo.se> > --- > drivers/misc/rockchip-efuse.c | 45 +++++++++++++++++++++++++++++++++++ Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Thanks, - Kever > 1 file changed, 45 insertions(+) > > diff --git a/drivers/misc/rockchip-efuse.c b/drivers/misc/rockchip-efuse.c > index 808246e92230..7aa3dc1b3868 100644 > --- a/drivers/misc/rockchip-efuse.c > +++ b/drivers/misc/rockchip-efuse.c > @@ -13,6 +13,7 @@ > #include <dm.h> > #include <linux/bitops.h> > #include <linux/delay.h> > +#include <linux/iopoll.h> > #include <malloc.h> > #include <misc.h> > > @@ -31,6 +32,12 @@ > #define EFUSE_STROBE BIT(1) > #define EFUSE_CSB BIT(0) > #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 { > void __iomem *base; > @@ -38,6 +45,7 @@ struct rockchip_efuse_plat { > > struct rockchip_efuse_data { > int (*read)(struct udevice *dev, int offset, void *buf, int size); > + int offset; > int size; > int block_size; > }; > @@ -103,6 +111,30 @@ static int rockchip_rk3288_efuse_read(struct udevice *dev, int offset, > 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, > void *buf, int size) > { > @@ -144,6 +176,8 @@ static int rockchip_efuse_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); > > @@ -182,6 +216,13 @@ static const struct rockchip_efuse_data rk3288_data = { > .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 = { > .read = rockchip_rk3399_efuse_read, > .size = 0x80, > @@ -205,6 +246,10 @@ static const struct udevice_id rockchip_efuse_ids[] = { > .compatible = "rockchip,rk3288-efuse", > .data = (ulong)&rk3288_data, > }, > + { > + .compatible = "rockchip,rk3328-efuse", > + .data = (ulong)&rk3328_data, > + }, > { > .compatible = "rockchip,rk3399-efuse", > .data = (ulong)&rk3399_data,
diff --git a/drivers/misc/rockchip-efuse.c b/drivers/misc/rockchip-efuse.c index 808246e92230..7aa3dc1b3868 100644 --- a/drivers/misc/rockchip-efuse.c +++ b/drivers/misc/rockchip-efuse.c @@ -13,6 +13,7 @@ #include <dm.h> #include <linux/bitops.h> #include <linux/delay.h> +#include <linux/iopoll.h> #include <malloc.h> #include <misc.h> @@ -31,6 +32,12 @@ #define EFUSE_STROBE BIT(1) #define EFUSE_CSB BIT(0) #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 { void __iomem *base; @@ -38,6 +45,7 @@ struct rockchip_efuse_plat { struct rockchip_efuse_data { int (*read)(struct udevice *dev, int offset, void *buf, int size); + int offset; int size; int block_size; }; @@ -103,6 +111,30 @@ static int rockchip_rk3288_efuse_read(struct udevice *dev, int offset, 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, void *buf, int size) { @@ -144,6 +176,8 @@ static int rockchip_efuse_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); @@ -182,6 +216,13 @@ static const struct rockchip_efuse_data rk3288_data = { .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 = { .read = rockchip_rk3399_efuse_read, .size = 0x80, @@ -205,6 +246,10 @@ static const struct udevice_id rockchip_efuse_ids[] = { .compatible = "rockchip,rk3288-efuse", .data = (ulong)&rk3288_data, }, + { + .compatible = "rockchip,rk3328-efuse", + .data = (ulong)&rk3328_data, + }, { .compatible = "rockchip,rk3399-efuse", .data = (ulong)&rk3399_data,
Add support for rk3328 compatible. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> --- drivers/misc/rockchip-efuse.c | 45 +++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+)