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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 17:15:15 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 17:15:15 (GMT) |
commit | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch) | |
tree | 816e5ac643b15c2050c64a7075f0f7e13d86ea09 /arch/arm/mach-omap2 | |
parent | b1bf9368407ae7e89d8a005bb40beb70a41df539 (diff) | |
parent | 9f33be2c3a80bdc2cc08342dd77fac87652e0548 (diff) | |
download | linux-fsl-qoriq-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.tar.xz |
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: (100 commits)
ARM: Eliminate decompressor -Dstatic= PIC hack
ARM: 5958/1: ARM: U300: fix inverted clk round rate
ARM: 5956/1: misplaced parentheses
ARM: 5955/1: ep93xx: move timer defines into core.c and document
ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c
ARM: 5953/1: ep93xx: fix broken build of clock.c
ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig
ARM: 5949/1: NUC900 add gpio virtual memory map
ARM: 5948/1: Enable timer0 to time4 clock support for nuc910
ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk
ARM: make_coherent(): fix problems with highpte, part 2
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
ARM: 5945/1: ep93xx: include correct irq.h in core.c
ARM: 5933/1: amba-pl011: support hardware flow control
ARM: 5930/1: Add PKMAP area description to memory.txt.
ARM: 5929/1: Add checks to detect overlap of memory regions.
ARM: 5928/1: Change type of VMALLOC_END to unsigned long.
ARM: 5927/1: Make delimiters of DMA area globally visibly.
ARM: 5926/1: Add "Virtual kernel memory..." printout.
ARM: 5920/1: OMAP4: Enable L2 Cache
...
Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r-- | arch/arm/mach-omap2/board-4430sdp.c | 54 | ||||
-rw-r--r-- | arch/arm/mach-omap2/include/mach/debug-macro.S | 2 |
2 files changed, 55 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 0c6be6b..8ba8fb5 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -28,6 +28,7 @@ #include <plat/control.h> #include <plat/timer-gp.h> #include <asm/hardware/gic.h> +#include <asm/hardware/cache-l2x0.h> static struct platform_device sdp4430_lcd_device = { .name = "sdp4430_lcd", @@ -50,6 +51,59 @@ static struct omap_board_config_kernel sdp4430_config[] __initdata = { { OMAP_TAG_LCD, &sdp4430_lcd_config }, }; +#ifdef CONFIG_CACHE_L2X0 +noinline void omap_smc1(u32 fn, u32 arg) +{ + register u32 r12 asm("r12") = fn; + register u32 r0 asm("r0") = arg; + + /* This is common routine cache secure monitor API used to + * modify the PL310 secure registers. + * r0 contains the value to be modified and "r12" contains + * the monitor API number. It uses few CPU registers + * internally and hence they need be backed up including + * link register "lr". + * Explicitly save r11 and r12 the compiler generated code + * won't save it. + */ + asm volatile( + "stmfd r13!, {r11,r12}\n" + "dsb\n" + "smc\n" + "ldmfd r13!, {r11,r12}\n" + : "+r" (r0), "+r" (r12) + : + : "r4", "r5", "r10", "lr", "cc"); +} +EXPORT_SYMBOL(omap_smc1); + +static int __init omap_l2_cache_init(void) +{ + void __iomem *l2cache_base; + + /* To avoid code running on other OMAPs in + * multi-omap builds + */ + if (!cpu_is_omap44xx()) + return -ENODEV; + + /* Static mapping, never released */ + l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K); + BUG_ON(!l2cache_base); + + /* Enable PL310 L2 Cache controller */ + omap_smc1(0x102, 0x1); + + /* 32KB way size, 16-way associativity, + * parity disabled + */ + l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff); + + return 0; +} +early_initcall(omap_l2_cache_init); +#endif + static void __init gic_init_irq(void) { void __iomem *base; diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S index e9f255d..86979d7 100644 --- a/arch/arm/mach-omap2/include/mach/debug-macro.S +++ b/arch/arm/mach-omap2/include/mach/debug-macro.S @@ -11,7 +11,7 @@ * */ - .macro addruart,rx + .macro addruart, rx, tmp mrc p15, 0, \rx, c1, c0 tst \rx, #1 @ MMU enabled? #ifdef CONFIG_ARCH_OMAP2 |