85xx: Report which "bank" of NOR flash we are booting from on FSL boards

The p2020DS, MPC8536DS, MPC8572DS, MPC8544DS boards are capable of
swizzling the upper address bits of the NOR flash we boot out of which
creates the concept of "virtual" banks.  This is useful in that we can
flash a test of image of u-boot and reset to one of the virtual banks
while still maintaining a working image in "bank 0".

The PIXIS FPGA exposes registers on LBC which we can use to determine
which "bank" we are booting out of (as well as setting which bank to
boot out of).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

4 files changed, 90 insertions, 14 deletions

diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c
index 28b27ee8f..66f095f7a 100644
--- a/board/freescale/mpc8536ds/mpc8536ds.c
+++ b/board/freescale/mpc8536ds/mpc8536ds.c
@@ -60,10 +60,41 @@ int board_early_init_f (void)
 
 int checkboard (void)
 {
-	printf ("Board: MPC8536DS, System ID: 0x%02x, "
-		"System Version: 0x%02x, FPGA Version: 0x%02x\n",
-		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
-		in8(PIXIS_BASE + PIXIS_PVER));
+	u8 vboot;
+	u8 *pixis_base = (u8 *)PIXIS_BASE;
+
+	puts("Board: MPC8536DS ");
+#ifdef CONFIG_PHYS_64BIT
+	puts("(36-bit addrmap) ");
+#endif
+
+	printf ("Sys ID: 0x%02x, "
+		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
+		in_8(pixis_base + PIXIS_PVER));
+
+	vboot = in_8(pixis_base + PIXIS_VBOOT);
+	switch ((vboot & PIXIS_VBOOT_LBMAP) >> 5) {
+		case PIXIS_VBOOT_LBMAP_NOR0:
+			puts ("vBank: 0\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NOR1:
+			puts ("vBank: 1\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NOR2:
+			puts ("vBank: 2\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NOR3:
+			puts ("vBank: 3\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_PJET:
+			puts ("Promjet\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NAND:
+			puts ("NAND\n");
+			break;
+	}
+
 	return 0;
 }
 
diff --git a/board/freescale/mpc8544ds/mpc8544ds.c b/board/freescale/mpc8544ds/mpc8544ds.c
index 34bdbade7..b251e2e58 100644
--- a/board/freescale/mpc8544ds/mpc8544ds.c
+++ b/board/freescale/mpc8544ds/mpc8544ds.c
@@ -43,14 +43,22 @@ int checkboard (void)
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
 	volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
+	u8 vboot;
+	u8 *pixis_base = (u8 *)PIXIS_BASE;
 
 	if ((uint)&gur->porpllsr != 0xe00e0000) {
 		printf("immap size error %lx\n",(ulong)&gur->porpllsr);
 	}
-	printf ("Board: MPC8544DS, System ID: 0x%02x, "
-		"System Version: 0x%02x, FPGA Version: 0x%02x\n",
-		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
-		in8(PIXIS_BASE + PIXIS_PVER));
+	printf ("Board: MPC8544DS, Sys ID: 0x%02x, "
+		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
+		in_8(pixis_base + PIXIS_PVER));
+
+	vboot = in_8(pixis_base + PIXIS_VBOOT);
+	if (vboot & PIXIS_VBOOT_FMAP)
+		printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
+	else
+		puts ("Promjet\n");
 
 	lbc->ltesr = 0xffffffff;	/* Clear LBC error interrupts */
 	lbc->lteir = 0xffffffff;	/* Enable LBC error interrupts */
diff --git a/board/freescale/mpc8572ds/mpc8572ds.c b/board/freescale/mpc8572ds/mpc8572ds.c
index 4b956171f..51231d7a4 100644
--- a/board/freescale/mpc8572ds/mpc8572ds.c
+++ b/board/freescale/mpc8572ds/mpc8572ds.c
@@ -42,14 +42,34 @@ long int fixed_sdram(void);
 
 int checkboard (void)
 {
+	u8 vboot;
+	u8 *pixis_base = (u8 *)PIXIS_BASE;
+
 	puts ("Board: MPC8572DS ");
 #ifdef CONFIG_PHYS_64BIT
 	puts ("(36-bit addrmap) ");
 #endif
 	printf ("Sys ID: 0x%02x, "
-		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x\n",
-		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
-		in8(PIXIS_BASE + PIXIS_PVER));
+		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
+		in_8(pixis_base + PIXIS_PVER));
+
+	vboot = in_8(pixis_base + PIXIS_VBOOT);
+	switch ((vboot & PIXIS_VBOOT_LBMAP) >> 6) {
+		case PIXIS_VBOOT_LBMAP_NOR0:
+			puts ("vBank: 0\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_PJET:
+			puts ("Promjet\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NAND:
+			puts ("NAND\n");
+			break;
+		case PIXIS_VBOOT_LBMAP_NOR1:
+			puts ("vBank: 1\n");
+			break;
+	}
+
 	return 0;
 }
 
diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c
index 293e5a42d..fdd832554 100644
--- a/board/freescale/p2020ds/p2020ds.c
+++ b/board/freescale/p2020ds/p2020ds.c
@@ -47,14 +47,31 @@ phys_size_t fixed_sdram(void);
 
 int checkboard(void)
 {
+	u8 sw7;
+	u8 *pixis_base = (u8 *)PIXIS_BASE;
+
 	puts("Board: P2020DS ");
 #ifdef CONFIG_PHYS_64BIT
 	puts("(36-bit addrmap) ");
 #endif
+
 	printf("Sys ID: 0x%02x, "
-		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x\n",
-		in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER),
-		in8(PIXIS_BASE + PIXIS_PVER));
+		"Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+		in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
+		in_8(pixis_base + PIXIS_PVER));
+
+	sw7 = in_8(pixis_base + PIXIS_SW(7));
+	switch ((sw7 & PIXIS_SW7_LBMAP) >> 6) {
+		case 0:
+		case 1:
+			printf ("vBank: %d\n", ((sw7 & PIXIS_SW7_VBANK) >> 4));
+			break;
+		case 2:
+		case 3:
+			puts ("Promjet\n");
+			break;
+	}
+
 	return 0;
 }