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powerpc: spl: configure SYS_MALLOC_F_LEN independently for SPL and full U-Boot

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Some platforms have very limited SRAM to run SPL code, so there may
not be the same amount space for a malloc pool before relocation in
the SPL stage as the normal U-Boot stage.

Make SPL and (the full) U-Boot stage use independent SYS_MALLOC_F_LEN,
so the size of pre-relocation malloc pool can be configured memory
space independently.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[fixed up commit-message:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
master
Andy Yan 8 years ago committed by Philipp Tomsich
parent f5868a5da1
commit 2b71d098ee
2 changed files with 9 additions and 10 deletions
  1. 8
      arch/powerpc/cpu/mpc83xx/start.S
  2. 11
      arch/powerpc/cpu/mpc85xx/start.S

8
arch/powerpc/cpu/mpc83xx/start.S
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@ -264,14 +264,14 @@ in_flash:
cmplw r3, r4
bne 1b
#ifdef CONFIG_SYS_MALLOC_F_LEN
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
#if CONFIG_SYS_MALLOC_F_LEN + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE
#error "CONFIG_SYS_MALLOC_F_LEN too large to fit into initial RAM."
#if CONFIG_VAL(SYS_MALLOC_F_LEN) + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE
#error "SYS_MALLOC_F_LEN too large to fit into initial RAM."
#endif
/* r3 = new stack pointer / pre-reloc malloc area */
subi r3, r3, CONFIG_SYS_MALLOC_F_LEN
subi r3, r3, CONFIG_VAL(SYS_MALLOC_F_LEN)
/* Set pointer to pre-reloc malloc area in GD */
stw r3, GD_MALLOC_BASE(r4)

11
arch/powerpc/cpu/mpc85xx/start.S
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@ -1183,14 +1183,13 @@ _start_cont:
lis r3,(CONFIG_SYS_INIT_RAM_ADDR)@h
ori r3,r3,((CONFIG_SYS_INIT_SP_OFFSET-16)&~0xf)@l /* Align to 16 */
#ifdef CONFIG_SYS_MALLOC_F_LEN
#if CONFIG_SYS_MALLOC_F_LEN + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE
#error "CONFIG_SYS_MALLOC_F_LEN too large to fit into initial RAM."
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
#if CONFIG_VAL(SYS_MALLOC_F_LEN) + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE
#error "SYS_MALLOC_F_LEN too large to fit into initial RAM."
#endif
/* Leave 16+ byte for back chain termination and NULL return address */
subi r3,r3,((CONFIG_SYS_MALLOC_F_LEN+16+15)&~0xf)
subi r3,r3,((CONFIG_VAL(SYS_MALLOC_F_LEN)+16+15)&~0xf)
#endif
/* End of RAM */
@ -1204,7 +1203,7 @@ _start_cont:
cmplw r4,r3
bne 1b
#ifdef CONFIG_SYS_MALLOC_F_LEN
#if CONFIG_VAL(SYS_MALLOC_F_LEN)
lis r4,(CONFIG_SYS_INIT_RAM_ADDR)@h
ori r4,r4,(CONFIG_SYS_GBL_DATA_OFFSET)@l

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