diff options
Diffstat (limited to 'arch/arm/mach-stm32mp/bsec.c')
| -rw-r--r-- | arch/arm/mach-stm32mp/bsec.c | 86 |
1 files changed, 46 insertions, 40 deletions
diff --git a/arch/arm/mach-stm32mp/bsec.c b/arch/arm/mach-stm32mp/bsec.c index 0c56b440f5..a9b9bd0902 100644 --- a/arch/arm/mach-stm32mp/bsec.c +++ b/arch/arm/mach-stm32mp/bsec.c @@ -74,7 +74,6 @@ static bool bsec_read_lock(u32 address, u32 otp) return !!(readl(address + bank) & bit); } -#ifndef CONFIG_TFABOOT /** * bsec_check_error() - Check status of one otp * @base: base address of bsec IP @@ -279,7 +278,6 @@ static int bsec_program_otp(long base, u32 val, u32 otp) return ret; } -#endif /* CONFIG_TFABOOT */ /* BSEC MISC driver *******************************************************/ struct stm32mp_bsec_platdata { @@ -288,15 +286,17 @@ struct stm32mp_bsec_platdata { static int stm32mp_bsec_read_otp(struct udevice *dev, u32 *val, u32 otp) { -#ifdef CONFIG_TFABOOT - return stm32_smc(STM32_SMC_BSEC, - STM32_SMC_READ_OTP, - otp, 0, val); -#else - struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + struct stm32mp_bsec_platdata *plat; u32 tmp_data = 0; int ret; + if (IS_ENABLED(CONFIG_TFABOOT)) + return stm32_smc(STM32_SMC_BSEC, + STM32_SMC_READ_OTP, + otp, 0, val); + + plat = dev_get_platdata(dev); + /* read current shadow value */ ret = bsec_read_shadow(plat->base, &tmp_data, otp); if (ret) @@ -313,21 +313,22 @@ static int stm32mp_bsec_read_otp(struct udevice *dev, u32 *val, u32 otp) /* restore shadow value */ ret = bsec_write_shadow(plat->base, tmp_data, otp); + return ret; -#endif } static int stm32mp_bsec_read_shadow(struct udevice *dev, u32 *val, u32 otp) { -#ifdef CONFIG_TFABOOT - return stm32_smc(STM32_SMC_BSEC, - STM32_SMC_READ_SHADOW, - otp, 0, val); -#else - struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + struct stm32mp_bsec_platdata *plat; + + if (IS_ENABLED(CONFIG_TFABOOT)) + return stm32_smc(STM32_SMC_BSEC, + STM32_SMC_READ_SHADOW, + otp, 0, val); + + plat = dev_get_platdata(dev); return bsec_read_shadow(plat->base, val, otp); -#endif } static int stm32mp_bsec_read_lock(struct udevice *dev, u32 *val, u32 otp) @@ -342,33 +343,38 @@ static int stm32mp_bsec_read_lock(struct udevice *dev, u32 *val, u32 otp) static int stm32mp_bsec_write_otp(struct udevice *dev, u32 val, u32 otp) { -#ifdef CONFIG_TFABOOT - return stm32_smc_exec(STM32_SMC_BSEC, - STM32_SMC_PROG_OTP, - otp, val); -#else - struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + struct stm32mp_bsec_platdata *plat; + + if (IS_ENABLED(CONFIG_TFABOOT)) + return stm32_smc_exec(STM32_SMC_BSEC, + STM32_SMC_PROG_OTP, + otp, val); + + plat = dev_get_platdata(dev); return bsec_program_otp(plat->base, val, otp); -#endif + } static int stm32mp_bsec_write_shadow(struct udevice *dev, u32 val, u32 otp) { -#ifdef CONFIG_TFABOOT - return stm32_smc_exec(STM32_SMC_BSEC, - STM32_SMC_WRITE_SHADOW, - otp, val); -#else - struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + struct stm32mp_bsec_platdata *plat; + + if (IS_ENABLED(CONFIG_TFABOOT)) + return stm32_smc_exec(STM32_SMC_BSEC, + STM32_SMC_WRITE_SHADOW, + otp, val); + + plat = dev_get_platdata(dev); return bsec_write_shadow(plat->base, val, otp); -#endif } static int stm32mp_bsec_write_lock(struct udevice *dev, u32 val, u32 otp) { -#ifdef CONFIG_TFABOOT + if (!IS_ENABLED(CONFIG_TFABOOT)) + return -ENOTSUPP; + if (val == 1) return stm32_smc_exec(STM32_SMC_BSEC, STM32_SMC_WRLOCK_OTP, @@ -377,9 +383,6 @@ static int stm32mp_bsec_write_lock(struct udevice *dev, u32 val, u32 otp) return 0; /* nothing to do */ return -EINVAL; -#else - return -ENOTSUPP; -#endif } static int stm32mp_bsec_read(struct udevice *dev, int offset, @@ -481,18 +484,21 @@ static int stm32mp_bsec_ofdata_to_platdata(struct udevice *dev) static int stm32mp_bsec_probe(struct udevice *dev) { -#if !defined(CONFIG_TFABOOT) && !defined(CONFIG_SPL_BUILD) int otp; - struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + struct stm32mp_bsec_platdata *plat; /* * update unlocked shadow for OTP cleared by the rom code * only executed in U-Boot proper when TF-A is not used */ - for (otp = 57; otp <= BSEC_OTP_MAX_VALUE; otp++) - if (!bsec_read_SR_lock(plat->base, otp)) - bsec_shadow_register(plat->base, otp); -#endif + + if (!IS_ENABLED(CONFIG_TFABOOT) && !IS_ENABLED(CONFIG_SPL_BUILD)) { + plat = dev_get_platdata(dev); + + for (otp = 57; otp <= BSEC_OTP_MAX_VALUE; otp++) + if (!bsec_read_SR_lock(plat->base, otp)) + bsec_shadow_register(plat->base, otp); + } return 0; } |