The MPC8536DS board is capable of swizzling the upper adress 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).
Additionally we went ahead a tweaked the print out for a future 36-bit physical address map for the MPC8536DS.
Signed-off-by: Kumar Gala galak@kernel.crashing.org --- board/freescale/mpc8536ds/mpc8536ds.c | 18 ++++++++++++++++-- 1 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c index 28b27ee..2f55b07 100644 --- a/board/freescale/mpc8536ds/mpc8536ds.c +++ b/board/freescale/mpc8536ds/mpc8536ds.c @@ -60,10 +60,24 @@ 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", + u8 vboot; + + 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, ", in8(PIXIS_BASE + PIXIS_ID), in8(PIXIS_BASE + PIXIS_VER), in8(PIXIS_BASE + PIXIS_PVER)); + + vboot = in8(PIXIS_BASE + 0x16); + if ((vboot >> 7) & 0x1) + printf ("Promjet\n"); + else + printf ("vBank: %d\n", ((vboot >> 5) & 0x3)); + return 0; }