diff options
| author | Scott Wood <scottwood@freescale.com> | 2012-12-06 13:33:17 +0000 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2012-12-19 17:45:44 -0600 |
| commit | 06f60ae3e454e15a410a0d4e96769bf938af8fcb (patch) | |
| tree | 782054a8a7c564a760bd612f07c4ec455c1782a9 /arch/powerpc/cpu/mpc83xx/start.S | |
| parent | 74752baa738ee9dafe69d726910e26da56f6f722 (diff) | |
| download | u-boot-06f60ae3e454e15a410a0d4e96769bf938af8fcb.tar.gz | |
powerpc/mpc83xx: add support for new SPL
This adds arch support for PPC mpc83xx to boot "minimal" (4K) SPLs
using the new infrastructure.
Existing nand_spl targets are updated to deal with the name change
from nand_init.c to spl_minimal.c (as in theory this isn't limited
to NAND anymore).
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'arch/powerpc/cpu/mpc83xx/start.S')
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/start.S | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S index b70b4ca12c..44a64b7acd 100644 --- a/arch/powerpc/cpu/mpc83xx/start.S +++ b/arch/powerpc/cpu/mpc83xx/start.S @@ -58,7 +58,13 @@ #define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI) #endif -#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SYS_RAMBOOT) +#if defined(CONFIG_NAND_SPL) || \ + (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_INIT_MINIMAL)) +#define MINIMAL_SPL +#endif + +#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NAND_SPL) && \ + !defined(CONFIG_SYS_RAMBOOT) #define CONFIG_SYS_FLASHBOOT #endif @@ -72,7 +78,7 @@ GOT_ENTRY(__bss_start) GOT_ENTRY(__bss_end__) -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL GOT_ENTRY(_FIXUP_TABLE_) GOT_ENTRY(_start) GOT_ENTRY(_start_of_vectors) @@ -206,7 +212,8 @@ _start: /* time t 0 */ /* Initialise the E300 processor core */ /*------------------------------------------*/ -#ifdef CONFIG_NAND_SPL +#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_MPC83XX_WAIT_FOR_NAND)) || \ + defined(CONFIG_NAND_SPL) /* The FCM begins execution after only the first page * is loaded. Wait for the rest before branching * to another flash page. @@ -292,7 +299,7 @@ in_flash: /* NOTREACHED - board_init_f() does not return */ -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL /* * Vector Table */ @@ -467,7 +474,7 @@ int_return: lwz r1,GPR1(r1) SYNC rfi -#endif /* !CONFIG_NAND_SPL */ +#endif /* !MINIMAL_SPL */ /* * This code initialises the E300 processor core @@ -724,7 +731,7 @@ setup_bats: * Note: requires that all cache bits in * HID0 are in the low half word. */ -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL .globl icache_enable icache_enable: mfspr r3, HID0 @@ -753,7 +760,7 @@ icache_status: mfspr r3, HID0 rlwinm r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31 blr -#endif /* !CONFIG_NAND_SPL */ +#endif /* !MINIMAL_SPL */ .globl dcache_enable dcache_enable: @@ -936,7 +943,7 @@ in_ram: stw r0,0(r3) 2: bdnz 1b -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL /* * Now adjust the fixups and the pointers to the fixups * in case we need to move ourselves again. @@ -991,7 +998,7 @@ clear_bss: mr r4, r10 /* Destination Address */ bl board_init_r -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL /* * Copy exception vector code to low memory * @@ -1061,7 +1068,7 @@ trap_init: mtlr r4 /* restore link register */ blr -#endif /* !CONFIG_NAND_SPL */ +#endif /* !MINIMAL_SPL */ #ifdef CONFIG_SYS_INIT_RAM_LOCK lock_ram_in_cache: @@ -1085,7 +1092,7 @@ lock_ram_in_cache: sync blr -#ifndef CONFIG_NAND_SPL +#ifndef MINIMAL_SPL .globl unlock_ram_in_cache unlock_ram_in_cache: /* invalidate the INIT_RAM section */ @@ -1111,7 +1118,7 @@ unlock_ram_in_cache: sync mtspr HID0, r3 /* no invalidate, unlock */ blr -#endif /* !CONFIG_NAND_SPL */ +#endif /* !MINIMAL_SPL */ #endif /* CONFIG_SYS_INIT_RAM_LOCK */ #ifdef CONFIG_SYS_FLASHBOOT |