Add board revision check
Signed-off-by: Peng Fan <peng....@nxp.com>
---
board/freescale/mx7dsabresd/mx7dsabresd.c | 59 ++++++++++++++++++++++++++++++-
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/board/freescale/mx7dsabresd/mx7dsabresd.c
b/board/freescale/mx7dsabresd/mx7dsabresd.c
index ecea5a5..07392fa 100644
--- a/board/freescale/mx7dsabresd/mx7dsabresd.c
+++ b/board/freescale/mx7dsabresd/mx7dsabresd.c
@@ -82,6 +82,48 @@ static iomux_v3_cfg_t const uart1_pads[] = {
MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
+#define BOARD_REV_C 0x300
+#define BOARD_REV_B 0x200
+#define BOARD_REV_A 0x100
+
+static int mx7sabre_rev(void)
+{
+ /*
+ * Get Board ID information from OCOTP_GP1[15:8]
+ * i.MX7D SDB RevA: 0x41
+ * i.MX7D SDB RevB: 0x42
+ */
+ struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+ struct fuse_bank *bank = &ocotp->bank[14];
+ int reg = readl(&bank->fuse_regs[0]);
+ int ret;
+
+ if (reg != 0) {
+ switch (reg >> 8 & 0x0F) {
+ case 0x3:
+ ret = BOARD_REV_C;
+ break;
+ case 0x02:
+ ret = BOARD_REV_B;
+ break;
+ case 0x01:
+ default:
+ ret = BOARD_REV_A;
+ break;
+ }
+ } else {
+ /* If the gp1 fuse is not burn, we have to use TO rev for the
board rev */
+ if (is_soc_rev(CHIP_REV_1_0))
+ ret = BOARD_REV_A;
+ else if (is_soc_rev(CHIP_REV_1_1))
+ ret = BOARD_REV_B;
+ else
+ ret = BOARD_REV_C;
+ }
+
+ return ret;
+}
+
#ifdef CONFIG_NAND_MXS
static iomux_v3_cfg_t const gpmi_pads[] = {
MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
@@ -377,14 +419,29 @@ int board_late_init(void)
int checkboard(void)
{
+ int rev = mx7sabre_rev();
char *mode;
+ char *revname;
if (IS_ENABLED(CONFIG_ARMV7_BOOT_SEC_DEFAULT))
mode = "secure";
else
mode = "non-secure";
- printf("Board: i.MX7D SABRESD in %s mode\n", mode);
+ switch (rev) {
+ case BOARD_REV_C:
+ revname = "C";
+ break;
+ case BOARD_REV_B:
+ revname = "B";
+ break;
+ case BOARD_REV_A:
+ default:
+ revname = "A";
+ break;
+ }
+
+ printf("Board: i.MX7D SABRESD Rev%s in %s mode\n", revname, mode);
return 0;
}
--
2.6.2
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