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| author | Peng Fan <peng.fan@nxp.com> | 2017-02-22 08:21:46 (GMT) |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2017-03-17 08:27:08 (GMT) |
| commit | 3ca0f0d2daabc763df0cedaf74b5049337aa4311 (patch) | |
| tree | e1c6606453add4d6f377fd1c7e1e24c7942cd516 /drivers/misc | |
| parent | d665eb6114c91f433473d4af8ff4e87e021b3ad8 (diff) | |
| download | u-boot-3ca0f0d2daabc763df0cedaf74b5049337aa4311.tar.xz | |
mxc_ocotp: Update driver to support OCOTP controller on i.MX7ULP
Update the mxc_ocotp driver to support i.MX7ULP.
The read/write sequence has some changes due to
PDN and OUT_STATUS registers added and TIME register is
removed. Also update the bank size and number.
Add is_mx7ulp macro in sys_proto.h
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by : Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/mxc_ocotp.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/misc/mxc_ocotp.c b/drivers/misc/mxc_ocotp.c index 0b1c050..88610d6 100644 --- a/drivers/misc/mxc_ocotp.c +++ b/drivers/misc/mxc_ocotp.c @@ -29,6 +29,12 @@ #ifdef CONFIG_MX7 #define BM_CTRL_ADDR 0x0000000f #define BM_CTRL_RELOAD 0x00000400 +#elif defined(CONFIG_MX7ULP) +#define BM_CTRL_ADDR 0x000000FF +#define BM_CTRL_RELOAD 0x00000400 +#define BM_OUT_STATUS_DED 0x00000400 +#define BM_OUT_STATUS_LOCKED 0x00000800 +#define BM_OUT_STATUS_PROGFAIL 0x00001000 #else #define BM_CTRL_ADDR 0x0000007f #endif @@ -70,6 +76,9 @@ #elif defined CONFIG_MX7 #define FUSE_BANK_SIZE 0x40 #define FUSE_BANKS 16 +#elif defined(CONFIG_MX7ULP) +#define FUSE_BANK_SIZE 0x80 +#define FUSE_BANKS 31 #else #error "Unsupported architecture\n" #endif @@ -98,7 +107,7 @@ u32 fuse_bank_physical(int index) { u32 phy_index; - if (is_mx6sl()) { + if (is_mx6sl() || is_mx7ulp()) { phy_index = index; } else if (is_mx6ul() || is_mx6ull() || is_mx6sll()) { if ((is_mx6ull() || is_mx6sll()) && index == 8) @@ -187,6 +196,10 @@ static int finish_access(struct ocotp_regs *regs, const char *caller) err = !!(readl(®s->ctrl) & BM_CTRL_ERROR); clear_error(regs); +#ifdef CONFIG_MX7ULP + /* Need to power down the OTP memory */ + writel(1, ®s->pdn); +#endif if (err) { printf("mxc_ocotp %s(): Access protect error\n", caller); return -EIO; @@ -217,6 +230,13 @@ int fuse_read(u32 bank, u32 word, u32 *val) *val = readl(®s->bank[phy_bank].fuse_regs[phy_word << 2]); +#ifdef CONFIG_MX7ULP + if (readl(®s->out_status) & BM_OUT_STATUS_DED) { + writel(BM_OUT_STATUS_DED, ®s->out_status_clr); + printf("mxc_ocotp %s(): fuse read wrong\n", __func__); + return -EIO; + } +#endif return finish_access(regs, __func__); } @@ -238,6 +258,12 @@ static void set_timing(struct ocotp_regs *regs) clrsetbits_le32(®s->timing, BM_TIMING_FSOURCE | BM_TIMING_PROG, timing); } +#elif defined(CONFIG_MX7ULP) +static void set_timing(struct ocotp_regs *regs) +{ + /* No timing set for MX7ULP */ +} + #else static void set_timing(struct ocotp_regs *regs) { @@ -302,6 +328,14 @@ int fuse_sense(u32 bank, u32 word, u32 *val) *val = readl(®s->read_fuse_data); #endif +#ifdef CONFIG_MX7ULP + if (readl(®s->out_status) & BM_OUT_STATUS_DED) { + writel(BM_OUT_STATUS_DED, ®s->out_status_clr); + printf("mxc_ocotp %s(): fuse read wrong\n", __func__); + return -EIO; + } +#endif + return finish_access(regs, __func__); } @@ -355,6 +389,14 @@ int fuse_prog(u32 bank, u32 word, u32 val) #endif udelay(WRITE_POSTAMBLE_US); +#ifdef CONFIG_MX7ULP + if (readl(®s->out_status) & (BM_OUT_STATUS_PROGFAIL | BM_OUT_STATUS_LOCKED)) { + writel((BM_OUT_STATUS_PROGFAIL | BM_OUT_STATUS_LOCKED), ®s->out_status_clr); + printf("mxc_ocotp %s(): fuse write is failed\n", __func__); + return -EIO; + } +#endif + return finish_access(regs, __func__); } @@ -374,5 +416,13 @@ int fuse_override(u32 bank, u32 word, u32 val) writel(val, ®s->bank[phy_bank].fuse_regs[phy_word << 2]); +#ifdef CONFIG_MX7ULP + if (readl(®s->out_status) & (BM_OUT_STATUS_PROGFAIL | BM_OUT_STATUS_LOCKED)) { + writel((BM_OUT_STATUS_PROGFAIL | BM_OUT_STATUS_LOCKED), ®s->out_status_clr); + printf("mxc_ocotp %s(): fuse write is failed\n", __func__); + return -EIO; + } +#endif + return finish_access(regs, __func__); } |