diff options
Diffstat (limited to 'arch/powerpc/platforms/52xx/lite5200_sleep.S')
| -rw-r--r-- | arch/powerpc/platforms/52xx/lite5200_sleep.S | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/52xx/lite5200_sleep.S b/arch/powerpc/platforms/52xx/lite5200_sleep.S index 3a9969c429b3..0ec2522ee4ad 100644 --- a/arch/powerpc/platforms/52xx/lite5200_sleep.S +++ b/arch/powerpc/platforms/52xx/lite5200_sleep.S @@ -1,4 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ +#include <linux/linkage.h> + #include <asm/reg.h> #include <asm/ppc_asm.h> #include <asm/processor.h> @@ -56,7 +58,7 @@ lite5200_low_power: /* * save stuff BDI overwrites * 0xf0 (0xe0->0x100 gets overwritten when BDI connected; - * even when CONFIG_BDI* is disabled and MMU XLAT commented; heisenbug?)) + * even when CONFIG_BDI_SWITCH is disabled and MMU XLAT commented; heisenbug?)) * WARNING: self-refresh doesn't seem to work when BDI2000 is connected, * possibly because BDI sets SDRAM registers before wakeup code does */ @@ -178,15 +180,17 @@ sram_code: /* local udelay in sram is needed */ - udelay: /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */ +SYM_FUNC_START_LOCAL(udelay) + /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */ mullw r12, r12, r11 mftb r13 /* start */ - addi r12, r13, r12 /* end */ + add r12, r13, r12 /* end */ 1: mftb r13 /* current */ cmp cr0, r13, r12 blt 1b blr +SYM_FUNC_END(udelay) sram_code_end: @@ -199,7 +203,8 @@ lite5200_wakeup: /* HIDs, MSR */ LOAD_SPRN(HID1, 0x19) - LOAD_SPRN(HID2, 0x1a) + /* FIXME: Should this use HID2_G2_LE? */ + LOAD_SPRN(HID2_750FX, 0x1a) /* address translation is tricky (see turn_on_mmu) */ @@ -248,6 +253,7 @@ mmu_on: blr +_ASM_NOKPROBE_SYMBOL(lite5200_wakeup) /* ---------------------------------------------------------------------- */ @@ -270,7 +276,7 @@ mmu_on: SAVE_SR(n+2, addr+2); \ SAVE_SR(n+3, addr+3); -save_regs: +SYM_FUNC_START_LOCAL(save_regs) stw r0, 0(r4) stw r1, 0x4(r4) stw r2, 0x8(r4) @@ -278,7 +284,8 @@ save_regs: SAVE_SPRN(HID0, 0x18) SAVE_SPRN(HID1, 0x19) - SAVE_SPRN(HID2, 0x1a) + /* FIXME: Should this use HID2_G2_LE? */ + SAVE_SPRN(HID2_750FX, 0x1a) mfmsr r10 stw r10, (4*0x1b)(r4) /*SAVE_SPRN(LR, 0x1c) have to save it before the call */ @@ -316,6 +323,7 @@ save_regs: SAVE_SPRN(TBRU, 0x5b) blr +SYM_FUNC_END(save_regs) /* restore registers */ @@ -335,7 +343,7 @@ save_regs: LOAD_SR(n+2, addr+2); \ LOAD_SR(n+3, addr+3); -restore_regs: +SYM_FUNC_START_LOCAL(restore_regs) lis r4, registers@h ori r4, r4, registers@l @@ -391,6 +399,8 @@ restore_regs: LOAD_SPRN(TBWU, 0x5b); blr +_ASM_NOKPROBE_SYMBOL(restore_regs) +SYM_FUNC_END(restore_regs) @@ -401,7 +411,7 @@ restore_regs: * Flush data cache * Do this by just reading lots of stuff into the cache. */ -flush_data_cache: +SYM_FUNC_START_LOCAL(flush_data_cache) lis r3,CONFIG_KERNEL_START@h ori r3,r3,CONFIG_KERNEL_START@l li r4,NUM_CACHE_LINES @@ -411,3 +421,4 @@ flush_data_cache: addi r3,r3,L1_CACHE_BYTES /* Next line, please */ bdnz 1b blr +SYM_FUNC_END(flush_data_cache) |