imx: Add a common way for detecting NXP boards revision
NXP development boards based on i.MX6/i.MX7 contain the board
revision information stored in the fuses.
Introduce a common function that can be shared by different boards and
convert mx6sabreauto to use this new mechanism.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/board/freescale/mx6sabreauto/mx6sabreauto.c b/board/freescale/mx6sabreauto/mx6sabreauto.c
index bdeb5f7..9c83e35 100644
--- a/board/freescale/mx6sabreauto/mx6sabreauto.c
+++ b/board/freescale/mx6sabreauto/mx6sabreauto.c
@@ -397,39 +397,9 @@
return cpu_eth_init(bis);
}
-#define BOARD_REV_B 0x200
-#define BOARD_REV_A 0x100
-
-static int mx6sabre_rev(void)
-{
- /*
- * Get Board ID information from OCOTP_GP1[15:8]
- * i.MX6Q ARD RevA: 0x01
- * i.MX6Q ARD RevB: 0x02
- */
- struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
- struct fuse_bank *bank = &ocotp->bank[4];
- struct fuse_bank4_regs *fuse =
- (struct fuse_bank4_regs *)bank->fuse_regs;
- int reg = readl(&fuse->gp1);
- int ret;
-
- switch (reg >> 8 & 0x0F) {
- case 0x02:
- ret = BOARD_REV_B;
- break;
- case 0x01:
- default:
- ret = BOARD_REV_A;
- break;
- }
-
- return ret;
-}
-
u32 get_board_rev(void)
{
- int rev = mx6sabre_rev();
+ int rev = nxp_board_rev();
return (get_cpu_rev() & ~(0xF << 8)) | rev;
}
@@ -703,20 +673,7 @@
int checkboard(void)
{
- int rev = mx6sabre_rev();
- char *revname;
-
- switch (rev) {
- case BOARD_REV_B:
- revname = "B";
- break;
- case BOARD_REV_A:
- default:
- revname = "A";
- break;
- }
-
- printf("Board: MX6Q-Sabreauto rev%s\n", revname);
+ printf("Board: MX6Q-Sabreauto rev%c\n", nxp_board_rev_string());
return 0;
}