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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-02-01 21:32:43 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-03-31 20:36:06 +0200 |
| commit | 5a2d4f053f67d03d212c2d036166934f4958173d (patch) | |
| tree | 3894239069ddc30d4dc24658d29230d819cfc7f8 /arch/arm/mach-at91 | |
| parent | 65cc1a59d192be1df33633d3fe668a1e3e0edc36 (diff) | |
| download | linux-0-day-5a2d4f053f67d03d212c2d036166934f4958173d.tar.gz linux-0-day-5a2d4f053f67d03d212c2d036166934f4958173d.tar.xz | |
ARM: at91: pm: Simplify at91rm9200_standby
Since 2008, AT91_MC_SDRAMC_LPR is set to 0 at kernel initialization. There
is no use saving, changing and restoring it.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index a35b1541b328e..3d68d93c11c71 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -222,20 +222,15 @@ static void at91_pm_set_standby(void (*at91_standby)(void)) */ static void at91rm9200_standby(void) { - u32 lpr = at91_ramc_read(0, AT91_MC_SDRAMC_LPR); - asm volatile( "b 1f\n\t" ".align 5\n\t" "1: mcr p15, 0, %0, c7, c10, 4\n\t" - " str %0, [%1, %2]\n\t" - " str %3, [%1, %4]\n\t" + " str %2, [%1, %3]\n\t" " mcr p15, 0, %0, c7, c0, 4\n\t" - " str %5, [%1, %2]" : - : "r" (0), "r" (pm_data.ramc[0]), "r" (AT91_MC_SDRAMC_LPR), - "r" (1), "r" (AT91_MC_SDRAMC_SRR), - "r" (lpr)); + : "r" (0), "r" (pm_data.ramc[0]), + "r" (1), "r" (AT91_MC_SDRAMC_SRR)); } /* We manage both DDRAM/SDRAM controllers, we need more than one value to |