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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:15:29 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:15:29 -0800 |
commit | 1c496784a0d317535f846ddb2c93a08ba936266b (patch) | |
tree | 6d0225860032f263b6d95a3e55c364a1a5f55ec1 /arch/arm/mach-omap2/sdrc.c | |
parent | adf9904dc774f23f04a5425f0198483ea61f878b (diff) | |
parent | 9a01609e1885b827b979d6d9dd86f43208a9e5fc (diff) |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (149 commits)
arm: omap: Add omap3_defconfig
AM35xx: Defconfig for AM3517 EVM board
AM35xx: Add support for AM3517 EVM board
omap: 3630sdp: defconfig creation
omap: 3630sdp: introduce 3630 sdp board support
omap3: Add defconfig for IGEP v2 board
omap3: Add minimal IGEP v2 support
omap3: Add CompuLab CM-T35 defconfig
omap3: Add CompuLab CM-T35 board support
omap3: rx51: Add wl1251 wlan driver support
omap3: rx51: Add SDRAM init
omap1: Add default kernel configuration for Herald
omap1: Add board support and LCD for HTC Herald
omap: zoom2: update defconfig for LL_DEBUG_NONE
omap: zoom3: defconfig creation
omap3: zoom: Introduce zoom3 board support
omap3: zoom: Drop i2c-1 speed to 2400
omap3: zoom: rename zoom2 name to generic zoom
omap3: zoom: split board file for software reuse
omap3evm: MIgrate to smsc911x ethernet driver
...
Fix trivial conflict (two unrelated config options added next to each
other) in arch/arm/mach-omap2/Makefile
Diffstat (limited to 'arch/arm/mach-omap2/sdrc.c')
-rw-r--r-- | arch/arm/mach-omap2/sdrc.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 9e3bd4fa781..9a592199321 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -23,13 +23,13 @@ #include <linux/clk.h> #include <linux/io.h> -#include <mach/common.h> -#include <mach/clock.h> -#include <mach/sram.h> +#include <plat/common.h> +#include <plat/clock.h> +#include <plat/sram.h> #include "prm.h" -#include <mach/sdrc.h> +#include <plat/sdrc.h> #include "sdrc.h" static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; @@ -37,12 +37,38 @@ static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1; void __iomem *omap2_sdrc_base; void __iomem *omap2_sms_base; +struct omap2_sms_regs { + u32 sms_sysconfig; +}; + +static struct omap2_sms_regs sms_context; + /* SDRC_POWER register bits */ #define SDRC_POWER_EXTCLKDIS_SHIFT 3 #define SDRC_POWER_PWDENA_SHIFT 2 #define SDRC_POWER_PAGEPOLICY_SHIFT 0 /** + * omap2_sms_save_context - Save SMS registers + * + * Save SMS registers that need to be restored after off mode. + */ +void omap2_sms_save_context(void) +{ + sms_context.sms_sysconfig = sms_read_reg(SMS_SYSCONFIG); +} + +/** + * omap2_sms_restore_context - Restore SMS registers + * + * Restore SMS registers that need to be Restored after off mode. + */ +void omap2_sms_restore_context(void) +{ + sms_write_reg(sms_context.sms_sysconfig, SMS_SYSCONFIG); +} + +/** * omap2_sdrc_get_params - return SDRC register values for a given clock rate * @r: SDRC clock rate (in Hz) * @sdrc_cs0: chip select 0 ram timings ** @@ -132,4 +158,5 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | (1 << SDRC_POWER_PAGEPOLICY_SHIFT); sdrc_write_reg(l, SDRC_POWER); + omap2_sms_save_context(); } |