When a board (slave) boots from SRIO/PCIE, it would get the instructions from a remote board (master) by SRIO/PCIE interface, and the slave's u-boot image should be built with the
SYS_TEXT_BASE=0xFFF80000;
So the u-boot of the slave should avoid the NOR_BOOT branch at the booting stage.
For example, when a P2041RDB boots from SRIO/PCIE, it will set TLB entry 15 from base address "CONFIG_SYS_MONITOR_BASE & 0xffc00000", and with the 4M size as the boot window in NOR_BOOT branch. Because the CONFIG_SYS_MONITOR_BASE = CONFIG_SYS_TEXT_BASE = 0xFFF80000, so the TLB entry will be from base address 0xffc00000 and with 4M size.
Then the u-boot will set TLB entry 14 from base address "CONFIG_SYS_INIT_RAM_ADDR", and with the 16K size as the initial stack window. For the P2041RDB platform, the CONFIG_SYS_INIT_RAM_ADDR = 0xffd00000. So the TLB entry 14 and 15 will be in confliction.
There will be right TLB entries configurations when avoid the NOR_BOOT branch and set the boot window from 0xfff00000 with 1M size space.
Signed-off-by: Liu Gang Gang.Liu@freescale.com --- arch/powerpc/cpu/mpc85xx/start.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S index 2657982..786b7e2 100644 --- a/arch/powerpc/cpu/mpc85xx/start.S +++ b/arch/powerpc/cpu/mpc85xx/start.S @@ -49,7 +49,8 @@ #define MINIMAL_SPL #endif
-#if !defined(CONFIG_SPL) && !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SECURE_BOOT) +#if !defined(CONFIG_SPL) && !defined(CONFIG_SYS_RAMBOOT) && \ + !defined(CONFIG_SECURE_BOOT) && !defined(CONFIG_SRIO_PCIE_BOOT_SLAVE) #define NOR_BOOT #endif