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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 16:14:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 16:14:44 -0700
commit281b05392fc2cb26209b4d85abaf4889ab1991f3 (patch)
treebbf5000ce7bd739b1ca85e9918741e285d267c7c /arch/arm/plat-s5p
parent48d554418d3bfbba5e9dc1ebdf352f1b1f3ff4ee (diff)
parentbde755679a3ba5af0d16231f8532e8373c5e2ecc (diff)
downloadblackbird-op-linux-281b05392fc2cb26209b4d85abaf4889ab1991f3.tar.gz
blackbird-op-linux-281b05392fc2cb26209b4d85abaf4889ab1991f3.zip
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: SoC specific updates" from Arnd Bergmann: "These changes are all specific to an soc family or the code for one soc. Lots of work for Tegra3 this time, but also a lot of other platforms. There will be another (smaller) set of soc patches later in the merge window for stuff that has dependencies on external trees or that was sent just before the merge window opened. The asoc tree added a few devices to the i.mx platform, which conflict with other devices added in the same place here. The tegra Makefile conflicts between a number of branches, mostly because of changes regarding localtimer.c, which was removed in the end. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fix up some trivial conflicts, including the mentioned Tegra Makefile. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: EXYNOS: fix cycle count for periodic mode of clock event timers ARM: EXYNOS: add support JPEG ARM: EXYNOS: Add DMC1, allow PPMU access for DMC ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata() ARM: SAMSUNG: Add __init attribute to samsung_bl_set() ARM: S5PV210: Add usb otg phy control ARM: S3C64XX: Add usb otg phy control ARM: EXYNOS: Enable l2 configuration through device tree ARM: EXYNOS: remove useless code to save/restore L2 ARM: EXYNOS: save L2 settings during bootup ARM: S5P: add L2 early resume code ARM: EXYNOS: Add support AFTR mode on EXYNOS4210 ARM: mx35: Setup the AIPS registers ARM: mx5: Use common function for configuring AIPS ARM: mx3: Setup AIPS registers ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE ARM: imx: update imx_v6_v7_defconfig ARM: tegra: Demote EMC clock inconsistency BUG to WARN ...
Diffstat (limited to 'arch/arm/plat-s5p')
-rw-r--r--arch/arm/plat-s5p/Kconfig10
-rw-r--r--arch/arm/plat-s5p/sleep.S44
2 files changed, 48 insertions, 6 deletions
diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
index 8167ce66188c..7a308699f816 100644
--- a/arch/arm/plat-s5p/Kconfig
+++ b/arch/arm/plat-s5p/Kconfig
@@ -80,6 +80,16 @@ config S5P_DEV_FIMC3
help
Compile in platform device definitions for FIMC controller 3
+config S5P_DEV_JPEG
+ bool
+ help
+ Compile in platform device definitions for JPEG codec
+
+config S5P_DEV_G2D
+ bool
+ help
+ Compile in platform device definitions for G2D device
+
config S5P_DEV_FIMD0
bool
help
diff --git a/arch/arm/plat-s5p/sleep.S b/arch/arm/plat-s5p/sleep.S
index 0fd591bfc9fd..006bd01eda02 100644
--- a/arch/arm/plat-s5p/sleep.S
+++ b/arch/arm/plat-s5p/sleep.S
@@ -23,9 +23,18 @@
*/
#include <linux/linkage.h>
-#include <asm/assembler.h>
+#include <asm/asm-offsets.h>
+#include <asm/hardware/cache-l2x0.h>
- .text
+/*
+ * The following code is located into the .data section. This is to
+ * allow l2x0_regs_phys to be accessed with a relative load while we
+ * can't rely on any MMU translation. We could have put l2x0_regs_phys
+ * in the .text section as well, but some setups might insist on it to
+ * be truly read-only. (Reference from: arch/arm/kernel/sleep.S)
+ */
+ .data
+ .align
/*
* sleep magic, to allow the bootloader to check for an valid
@@ -39,11 +48,34 @@
* s3c_cpu_resume
*
* resume code entry for bootloader to call
- *
- * we must put this code here in the data segment as we have no
- * other way of restoring the stack pointer after sleep, and we
- * must not write to the code segment (code is read-only)
*/
ENTRY(s3c_cpu_resume)
+#ifdef CONFIG_CACHE_L2X0
+ adr r0, l2x0_regs_phys
+ ldr r0, [r0]
+ ldr r1, [r0, #L2X0_R_PHY_BASE]
+ ldr r2, [r1, #L2X0_CTRL]
+ tst r2, #0x1
+ bne resume_l2on
+ ldr r2, [r0, #L2X0_R_AUX_CTRL]
+ str r2, [r1, #L2X0_AUX_CTRL]
+ ldr r2, [r0, #L2X0_R_TAG_LATENCY]
+ str r2, [r1, #L2X0_TAG_LATENCY_CTRL]
+ ldr r2, [r0, #L2X0_R_DATA_LATENCY]
+ str r2, [r1, #L2X0_DATA_LATENCY_CTRL]
+ ldr r2, [r0, #L2X0_R_PREFETCH_CTRL]
+ str r2, [r1, #L2X0_PREFETCH_CTRL]
+ ldr r2, [r0, #L2X0_R_PWR_CTRL]
+ str r2, [r1, #L2X0_POWER_CTRL]
+ mov r2, #1
+ str r2, [r1, #L2X0_CTRL]
+resume_l2on:
+#endif
b cpu_resume
+ENDPROC(s3c_cpu_resume)
+#ifdef CONFIG_CACHE_L2X0
+ .globl l2x0_regs_phys
+l2x0_regs_phys:
+ .long 0
+#endif
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