diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-07-30 19:16:37 +0200 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@st.com> | 2019-08-27 11:19:23 +0200 |
| commit | 8b8b3d6b55b9503adb5340936870b16777aeed04 (patch) | |
| tree | 2d9ad5387ebd4aa8fe8e7001754480fcdda3f8b3 /board/st/stm32mp1 | |
| parent | 49ef8e134e427ef0a752d741063d69fe4c988ed5 (diff) | |
stm32mp1: board: add environment variable for board id and board rev
Add variable to identify board with HW id (read from OTP)
and revision.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'board/st/stm32mp1')
| -rw-r--r-- | board/st/stm32mp1/stm32mp1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index 279c7b7797..fdc4af3b64 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -539,6 +539,10 @@ 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); @@ -548,6 +552,21 @@ 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 */ |