Add variable to identify board with HW id (read from OTP) and revision.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
board/st/stm32mp1/stm32mp1.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index b99c6c0..ad3db31 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -538,6 +538,10 @@ int board_late_init(void) #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG const void *fdt_compat; int fdt_compat_len; + int ret; + u32 otp; + struct udevice *dev; + char buf[10];
fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible", &fdt_compat_len); @@ -547,6 +551,21 @@ int board_late_init(void) else env_set("board_name", fdt_compat + 3); } + ret = uclass_get_device_by_driver(UCLASS_MISC, + DM_GET_DRIVER(stm32mp_bsec), + &dev); + + if (!ret) + ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD), + &otp, sizeof(otp)); + if (!ret && otp) { + snprintf(buf, sizeof(buf), "0x%04x", otp >> 16); + env_set("board_id", buf); + + snprintf(buf, sizeof(buf), "0x%04x", + ((otp >> 8) & 0xF) - 1 + 0xA); + env_set("board_rev", buf); + } #endif
/* for DK1/DK2 boards */