diff options
Diffstat (limited to 'arch/arm/mach-tegra/sleep.S')
| -rw-r--r-- | arch/arm/mach-tegra/sleep.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/sleep.S b/arch/arm/mach-tegra/sleep.S index 6d6600dcbfe2..8388113419fd 100644 --- a/arch/arm/mach-tegra/sleep.S +++ b/arch/arm/mach-tegra/sleep.S @@ -69,6 +69,28 @@ ENDPROC(tegra_disable_clean_inv_dcache) #ifdef CONFIG_PM_SLEEP /* + * tegra_init_l2_for_a15 + * + * set up the correct L2 cache data RAM latency + */ +ENTRY(tegra_init_l2_for_a15) + mrc p15, 0, r0, c0, c0, 5 + ubfx r0, r0, #8, #4 + tst r0, #1 @ only need for cluster 0 + bne _exit_init_l2_a15 + + mrc p15, 0x1, r0, c9, c0, 2 + and r0, r0, #7 + cmp r0, #2 + bicne r0, r0, #7 + orrne r0, r0, #2 + mcrne p15, 0x1, r0, c9, c0, 2 +_exit_init_l2_a15: + + mov pc, lr +ENDPROC(tegra_init_l2_for_a15) + +/* * tegra_sleep_cpu_finish(unsigned long v2p) * * enters suspend in LP2 by turning off the mmu and jumping to |