diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-02-27 17:01:28 +0100 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-12 16:09:13 +0200 |
| commit | 815bc8bc94b0c5bbd1bcb921f67c31a42cfad8d4 (patch) | |
| tree | 8940b805b5eb058e7c482996f3f8cb4ae567f7c0 /arch | |
| parent | bfe1f08f88beacc61755bbeeb509b840c66df740 (diff) | |
stm32mp1: bsec: shadow all the upper OTP (no secure) during boot
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-stm32mp/bsec.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/mach-stm32mp/bsec.c b/arch/arm/mach-stm32mp/bsec.c index 8c5a299104..9ed8d8c56c 100644 --- a/arch/arm/mach-stm32mp/bsec.c +++ b/arch/arm/mach-stm32mp/bsec.c @@ -171,7 +171,7 @@ static int bsec_shadow_register(u32 base, u32 otp) ret = bsec_power_safmem(base, true); if (ret) return ret; - power_up = 1; + power_up = true; } /* set BSEC_OTP_CTRL_OFF with the otp value*/ writel(otp | BSEC_READ, base + BSEC_OTP_CTRL_OFF); @@ -433,6 +433,21 @@ static int stm32mp_bsec_ofdata_to_platdata(struct udevice *dev) return 0; } +#ifndef CONFIG_STM32MP1_TRUSTED +static int stm32mp_bsec_probe(struct udevice *dev) +{ + int otp; + struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev); + + /* update unlocked shadow for OTP cleared by the rom code */ + 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; +} +#endif + static const struct udevice_id stm32mp_bsec_ids[] = { { .compatible = "st,stm32mp15-bsec" }, {} @@ -445,4 +460,7 @@ U_BOOT_DRIVER(stm32mp_bsec) = { .ofdata_to_platdata = stm32mp_bsec_ofdata_to_platdata, .platdata_auto_alloc_size = sizeof(struct stm32mp_bsec_platdata), .ops = &stm32mp_bsec_ops, +#ifndef CONFIG_STM32MP1_TRUSTED + .probe = stm32mp_bsec_probe, +#endif }; |