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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 19:03:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 19:03:06 -0700
commit16d8775700f1815076f879719ce14b33f50a3171 (patch)
tree8525e6e6f12b6acf7cf2746853cc65549f3dbf4c /arch/arm/plat-omap
parente34551339a195aa548eaf698523714a8fe7f1984 (diff)
parent05e34754518b6a90d5c392790c032575fab12d66 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (91 commits) ARM: 6806/1: irq: introduce entry and exit functions for chained handlers ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas ARM: 6747/1: P2V: Thumb2 support ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9 ARM: 6772/1: errata: possible fault MMU translations following an ASID switch ARM: 6776/1: mach-ux500: activate fix for errata 753970 ARM: 6794/1: SPEAr: Append UL to device address macros. ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files. ARM: 6681/1: SPEAr: add debugfs support to clk API ARM: 6703/1: SPEAr: update clk API support ARM: 6679/1: SPEAr: make clk API functions more generic ARM: 6737/1: SPEAr: formalized timer support ...
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/include/plat/memory.h4
-rw-r--r--arch/arm/plat-omap/include/plat/serial.h2
-rw-r--r--arch/arm/plat-omap/include/plat/sram.h14
-rw-r--r--arch/arm/plat-omap/sram.c14
4 files changed, 25 insertions, 9 deletions
diff --git a/arch/arm/plat-omap/include/plat/memory.h b/arch/arm/plat-omap/include/plat/memory.h
index f8d922fb558..e6720aa2d55 100644
--- a/arch/arm/plat-omap/include/plat/memory.h
+++ b/arch/arm/plat-omap/include/plat/memory.h
@@ -37,9 +37,9 @@
* Physical DRAM offset.
*/
#if defined(CONFIG_ARCH_OMAP1)
-#define PHYS_OFFSET UL(0x10000000)
+#define PLAT_PHYS_OFFSET UL(0x10000000)
#else
-#define PHYS_OFFSET UL(0x80000000)
+#define PLAT_PHYS_OFFSET UL(0x80000000)
#endif
/*
diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h
index cec5d56db2e..8ff605c83ac 100644
--- a/arch/arm/plat-omap/include/plat/serial.h
+++ b/arch/arm/plat-omap/include/plat/serial.h
@@ -27,7 +27,7 @@
* 2. We assume printascii is called at least once before paging_init,
* and addruart has a chance to read OMAP_UART_INFO
*/
-#define OMAP_UART_INFO (PHYS_OFFSET + 0x3ffc)
+#define OMAP_UART_INFO (PLAT_PHYS_OFFSET + 0x3ffc)
/* OMAP1 serial ports */
#define OMAP1_UART1_BASE 0xfffb0000
diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h
index 9967d5e855c..f500fc34d06 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -12,7 +12,19 @@
#define __ARCH_ARM_OMAP_SRAM_H
#ifndef __ASSEMBLY__
-extern void * omap_sram_push(void * start, unsigned long size);
+#include <asm/fncpy.h>
+
+extern void *omap_sram_push_address(unsigned long size);
+
+/* Macro to push a function to the internal SRAM, using the fncpy API */
+#define omap_sram_push(funcp, size) ({ \
+ typeof(&(funcp)) _res = NULL; \
+ void *_sram_address = omap_sram_push_address(size); \
+ if (_sram_address) \
+ _res = fncpy(_sram_address, &(funcp), size); \
+ _res; \
+})
+
extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
extern void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index e26e50487d6..68fcc7dc56e 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -242,7 +242,14 @@ static void __init omap_map_sram(void)
omap_sram_size - SRAM_BOOTLOADER_SZ);
}
-void * omap_sram_push(void * start, unsigned long size)
+/*
+ * Memory allocator for SRAM: calculates the new ceiling address
+ * for pushing a function using the fncpy API.
+ *
+ * Note that fncpy requires the returned address to be aligned
+ * to an 8-byte boundary.
+ */
+void *omap_sram_push_address(unsigned long size)
{
if (size > (omap_sram_ceil - (omap_sram_base + SRAM_BOOTLOADER_SZ))) {
printk(KERN_ERR "Not enough space in SRAM\n");
@@ -250,10 +257,7 @@ void * omap_sram_push(void * start, unsigned long size)
}
omap_sram_ceil -= size;
- omap_sram_ceil = ROUND_DOWN(omap_sram_ceil, sizeof(void *));
- memcpy((void *)omap_sram_ceil, start, size);
- flush_icache_range((unsigned long)omap_sram_ceil,
- (unsigned long)(omap_sram_ceil + size));
+ omap_sram_ceil = ROUND_DOWN(omap_sram_ceil, FNCPY_ALIGN);
return (void *)omap_sram_ceil;
}