leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

imx: Add a common way for detecting NXP boards revision

Browse Source 
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>
This commit is contained in:
Fabio Estevam
2017-11-27 10:25:09 -02:00
committed by Stefano Babic
parent 9a7295831e
commit 4555c26142
5 changed files with 39 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
board/freescale/mx6sabreauto/mx6sabreauto.c
View File

@@ -397,39 +397,9 @@ int board_eth_init(bd_t *bis)
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 board_late_init(void)
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;
}