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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:03:06 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:03:06 -0400
commit16d8775700f1815076f879719ce14b33f50a3171 (patch)
tree8525e6e6f12b6acf7cf2746853cc65549f3dbf4c /arch/arm/mm/cache-l2x0.c
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/mm/cache-l2x0.c')
-rw-r--r--arch/arm/mm/cache-l2x0.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index f2ce38e085d2..ef59099a5463 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -73,18 +73,24 @@ static inline void l2x0_inv_line(unsigned long addr)
73 writel_relaxed(addr, base + L2X0_INV_LINE_PA); 73 writel_relaxed(addr, base + L2X0_INV_LINE_PA);
74} 74}
75 75
76#ifdef CONFIG_PL310_ERRATA_588369 76#if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915)
77static void debug_writel(unsigned long val)
78{
79 extern void omap_smc1(u32 fn, u32 arg);
80 77
81 /* 78#define debug_writel(val) outer_cache.set_debug(val)
82 * Texas Instrument secure monitor api to modify the 79
83 * PL310 Debug Control Register. 80static void l2x0_set_debug(unsigned long val)
84 */ 81{
85 omap_smc1(0x100, val); 82 writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL);
86} 83}
84#else
85/* Optimised out for non-errata case */
86static inline void debug_writel(unsigned long val)
87{
88}
89
90#define l2x0_set_debug NULL
91#endif
87 92
93#ifdef CONFIG_PL310_ERRATA_588369
88static inline void l2x0_flush_line(unsigned long addr) 94static inline void l2x0_flush_line(unsigned long addr)
89{ 95{
90 void __iomem *base = l2x0_base; 96 void __iomem *base = l2x0_base;
@@ -97,11 +103,6 @@ static inline void l2x0_flush_line(unsigned long addr)
97} 103}
98#else 104#else
99 105
100/* Optimised out for non-errata case */
101static inline void debug_writel(unsigned long val)
102{
103}
104
105static inline void l2x0_flush_line(unsigned long addr) 106static inline void l2x0_flush_line(unsigned long addr)
106{ 107{
107 void __iomem *base = l2x0_base; 108 void __iomem *base = l2x0_base;
@@ -125,9 +126,11 @@ static void l2x0_flush_all(void)
125 126
126 /* clean all ways */ 127 /* clean all ways */
127 spin_lock_irqsave(&l2x0_lock, flags); 128 spin_lock_irqsave(&l2x0_lock, flags);
129 debug_writel(0x03);
128 writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_CLEAN_INV_WAY); 130 writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_CLEAN_INV_WAY);
129 cache_wait_way(l2x0_base + L2X0_CLEAN_INV_WAY, l2x0_way_mask); 131 cache_wait_way(l2x0_base + L2X0_CLEAN_INV_WAY, l2x0_way_mask);
130 cache_sync(); 132 cache_sync();
133 debug_writel(0x00);
131 spin_unlock_irqrestore(&l2x0_lock, flags); 134 spin_unlock_irqrestore(&l2x0_lock, flags);
132} 135}
133 136
@@ -335,6 +338,7 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
335 outer_cache.flush_all = l2x0_flush_all; 338 outer_cache.flush_all = l2x0_flush_all;
336 outer_cache.inv_all = l2x0_inv_all; 339 outer_cache.inv_all = l2x0_inv_all;
337 outer_cache.disable = l2x0_disable; 340 outer_cache.disable = l2x0_disable;
341 outer_cache.set_debug = l2x0_set_debug;
338 342
339 printk(KERN_INFO "%s cache controller enabled\n", type); 343 printk(KERN_INFO "%s cache controller enabled\n", type);
340 printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n", 344 printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",