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| author |   Olof Johansson <olof@lixom.net> | 2017-03-21 17:32:54 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2017-03-21 17:32:54 -0700 |
| commit | 6479ca8e59d1df54f8406e4c604bc2bf47241b2b (patch) | |
| tree | eb02a525b57faea99fcbfb6666a9cacc6b6b4f48 /arch | |
| parent | Merge tag 'reset-fixes-for-4.11' of git://git.pengutronix.de/git/pza/linux into fixes (diff) | |
| parent | ARM: at91: pm: cpu_idle: switch DDR to power-down mode (diff) | |
| download | linux-dev-6479ca8e59d1df54f8406e4c604bc2bf47241b2b.tar.xz linux-dev-6479ca8e59d1df54f8406e4c604bc2bf47241b2b.zip | |
Merge tag 'at91-ab-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes
Fixes for 4.11:
- Fix USB host for sama5d2
- Fix cpuidle on sama5
* tag 'at91-ab-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
Revert "ARM: at91/dt: sama5d2: Use new compatible for ohci node"
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/sama5d2.dtsi | 2 | ||||
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 18 |
2 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index 22332be72140..528b4e9c6d3d 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -266,7 +266,7 @@ }; usb1: ohci@00400000 { - compatible = "atmel,sama5d2-ohci", "usb-ohci"; + compatible = "atmel,at91rm9200-ohci", "usb-ohci"; reg = <0x00400000 0x100000>; interrupts = <41 IRQ_TYPE_LEVEL_HIGH 2>; clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>; diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 3d89b7905bd9..a277981f414d 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -289,6 +289,22 @@ static void at91_ddr_standby(void) at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1); } +static void sama5d3_ddr_standby(void) +{ + u32 lpr0; + u32 saved_lpr0; + + saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR); + lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB; + lpr0 |= AT91_DDRSDRC_LPCB_POWER_DOWN; + + at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0); + + cpu_do_idle(); + + at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0); +} + /* We manage both DDRAM/SDRAM controllers, we need more than one value to * remember. */ @@ -323,7 +339,7 @@ static const struct of_device_id const ramc_ids[] __initconst = { { .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby }, { .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby }, { .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby }, - { .compatible = "atmel,sama5d3-ddramc", .data = at91_ddr_standby }, + { .compatible = "atmel,sama5d3-ddramc", .data = sama5d3_ddr_standby }, { /*sentinel*/ } }; |