From 6bb5b412291177e6edd42f9a80e5c5afe57a6a0f Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 14 Jul 2009 22:42:01 -0500 Subject: 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 --- board/freescale/mpc8544ds/mpc8544ds.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'board/freescale/mpc8544ds') diff --git a/board/freescale/mpc8544ds/mpc8544ds.c b/board/freescale/mpc8544ds/mpc8544ds.c index 34bdbade7d..b251e2e587 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 */ -- cgit