diff options
Diffstat (limited to 'arch/powerpc/cpu/ppc4xx')
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/config.mk | 5 | ||||
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/cpu_init.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/start.S | 18 | ||||
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/u-boot.lds | 8 |
5 files changed, 34 insertions, 7 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c index 71bb9d7..7202c3f 100644 --- a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c +++ b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c @@ -424,6 +424,14 @@ phys_size_t initdram(int board_type) int write_recovery; phys_size_t dram_size = 0; + if (IS_ENABLED(CONFIG_SYS_RAMBOOT)) { + /* + * Reduce RAM size to avoid overwriting memory used by + * current stack? Not sure what is happening. + */ + return sdram_memsize() / 2; + } + num_dimm_banks = sizeof(iic0_dimm_addr); /*------------------------------------------------------------------ diff --git a/arch/powerpc/cpu/ppc4xx/config.mk b/arch/powerpc/cpu/ppc4xx/config.mk index f87c9dc..9cb41bb 100644 --- a/arch/powerpc/cpu/ppc4xx/config.mk +++ b/arch/powerpc/cpu/ppc4xx/config.mk @@ -7,10 +7,7 @@ PLATFORM_CPPFLAGS += -mstring -msoft-float -cfg=$(srctree)/include/configs/$(CONFIG_SYS_CONFIG_NAME:"%"=%).h -is440:=$(shell grep CONFIG_440 $(cfg)) - -ifneq (,$(findstring CONFIG_440,$(is440))) +ifneq (,$(CONFIG_440)) PLATFORM_CPPFLAGS += -Wa,-m440 -mcpu=440 else PLATFORM_CPPFLAGS += -Wa,-m405 -mcpu=405 diff --git a/arch/powerpc/cpu/ppc4xx/cpu_init.c b/arch/powerpc/cpu/ppc4xx/cpu_init.c index e5a0e21..5f5c720 100644 --- a/arch/powerpc/cpu/ppc4xx/cpu_init.c +++ b/arch/powerpc/cpu/ppc4xx/cpu_init.c @@ -450,10 +450,12 @@ cpu_init_f (void) PLB4Ax_ACR_RDP_4DEEP); #endif /* CONFIG_440SP/SPE || CONFIG_460EX/GT || CONFIG_405EX */ +#ifndef CONFIG_SYS_GENERIC_BOARD gd = (gd_t *)(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); /* Clear initial global data */ memset((void *)gd, 0, sizeof(gd_t)); +#endif } /* diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S index 09a02d7..7a0f0d2 100644 --- a/arch/powerpc/cpu/ppc4xx/start.S +++ b/arch/powerpc/cpu/ppc4xx/start.S @@ -760,6 +760,15 @@ _start: #endif bl cpu_init_f /* run low-level CPU init code (from Flash) */ +#ifdef CONFIG_SYS_GENERIC_BOARD + mr r3, r1 + bl board_init_f_mem + mr r1, r3 + li r0,0 + stwu r0, -4(r1) + stwu r0, -4(r1) +#endif + li r3, 0 bl board_init_f /* NOTREACHED - board_init_f() does not return */ @@ -1027,7 +1036,14 @@ _start: GET_GOT /* initialize GOT access */ bl cpu_init_f /* run low-level CPU init code (from Flash) */ - +#ifdef CONFIG_SYS_GENERIC_BOARD + mr r3, r1 + bl board_init_f_mem + mr r1, r3 + stwu r0, -4(r1) + stwu r0, -4(r1) +#endif + li r3, 0 bl board_init_f /* run first part of init code (from Flash) */ /* NOTREACHED - board_init_f() does not return */ diff --git a/arch/powerpc/cpu/ppc4xx/u-boot.lds b/arch/powerpc/cpu/ppc4xx/u-boot.lds index 8773178..1980508 100644 --- a/arch/powerpc/cpu/ppc4xx/u-boot.lds +++ b/arch/powerpc/cpu/ppc4xx/u-boot.lds @@ -76,9 +76,13 @@ SECTIONS . = ALIGN(256); __init_begin = .; .text.init : { *(.text.init) } - .data.init : { *(.data.init) } - . = ALIGN(256); + .data.init : { + *(.data.init) + . = ALIGN(256); + LONG(0) LONG(0) /* Extend u-boot.bin to here */ + } __init_end = .; + _end = .; #ifndef CONFIG_SPL #ifdef CONFIG_440 |