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-rw-r--r--arch/blackfin/Kconfig57
-rw-r--r--arch/blackfin/include/asm/cache.h4
-rw-r--r--arch/blackfin/include/asm/cacheflush.h10
-rw-r--r--arch/blackfin/include/asm/cplb.h32
-rw-r--r--arch/blackfin/kernel/cplb-mpu/cplbinit.c10
-rw-r--r--arch/blackfin/kernel/cplb-mpu/cplbmgr.c36
-rw-r--r--arch/blackfin/kernel/setup.c96
-rw-r--r--arch/blackfin/mach-common/arch_checks.c4
-rw-r--r--arch/blackfin/mach-common/cpufreq.c2
-rw-r--r--arch/blackfin/mach-common/pm.c4
-rw-r--r--arch/blackfin/mm/init.c2
11 files changed, 176 insertions, 81 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 8140a2fc8bbd..220635a1ebdd 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -907,23 +907,41 @@ endchoice
907 907
908 908
909comment "Cache Support" 909comment "Cache Support"
910
910config BFIN_ICACHE 911config BFIN_ICACHE
911 bool "Enable ICACHE" 912 bool "Enable ICACHE"
913 default y
914config BFIN_ICACHE_LOCK
915 bool "Enable Instruction Cache Locking"
916 depends on BFIN_ICACHE
917 default n
918config BFIN_EXTMEM_ICACHEABLE
919 bool "Enable ICACHE for external memory"
920 depends on BFIN_ICACHE
921 default y
922config BFIN_L2_ICACHEABLE
923 bool "Enable ICACHE for L2 SRAM"
924 depends on BFIN_ICACHE
925 depends on BF54x || BF561
926 default n
927
912config BFIN_DCACHE 928config BFIN_DCACHE
913 bool "Enable DCACHE" 929 bool "Enable DCACHE"
930 default y
914config BFIN_DCACHE_BANKA 931config BFIN_DCACHE_BANKA
915 bool "Enable only 16k BankA DCACHE - BankB is SRAM" 932 bool "Enable only 16k BankA DCACHE - BankB is SRAM"
916 depends on BFIN_DCACHE && !BF531 933 depends on BFIN_DCACHE && !BF531
917 default n 934 default n
918config BFIN_ICACHE_LOCK 935config BFIN_EXTMEM_DCACHEABLE
919 bool "Enable Instruction Cache Locking" 936 bool "Enable DCACHE for external memory"
920
921choice
922 prompt "External memory cache policy"
923 depends on BFIN_DCACHE 937 depends on BFIN_DCACHE
924 default BFIN_WB if !SMP 938 default y
925 default BFIN_WT if SMP 939choice
926config BFIN_WB 940 prompt "External memory DCACHE policy"
941 depends on BFIN_EXTMEM_DCACHEABLE
942 default BFIN_EXTMEM_WRITEBACK if !SMP
943 default BFIN_EXTMEM_WRITETHROUGH if SMP
944config BFIN_EXTMEM_WRITEBACK
927 bool "Write back" 945 bool "Write back"
928 depends on !SMP 946 depends on !SMP
929 help 947 help
@@ -941,7 +959,7 @@ config BFIN_WB
941 If you are unsure of the options and you want to be safe, 959 If you are unsure of the options and you want to be safe,
942 then go with Write Through. 960 then go with Write Through.
943 961
944config BFIN_WT 962config BFIN_EXTMEM_WRITETHROUGH
945 bool "Write through" 963 bool "Write through"
946 help 964 help
947 Write Back Policy: 965 Write Back Policy:
@@ -960,23 +978,26 @@ config BFIN_WT
960 978
961endchoice 979endchoice
962 980
981config BFIN_L2_DCACHEABLE
982 bool "Enable DCACHE for L2 SRAM"
983 depends on BFIN_DCACHE
984 depends on BF54x || BF561
985 default n
963choice 986choice
964 prompt "L2 SRAM cache policy" 987 prompt "L2 SRAM DCACHE policy"
965 depends on (BF54x || BF561) 988 depends on BFIN_L2_DCACHEABLE
966 default BFIN_L2_WT 989 default BFIN_L2_WRITEBACK
967config BFIN_L2_WB 990config BFIN_L2_WRITEBACK
968 bool "Write back" 991 bool "Write back"
969 depends on !SMP 992 depends on !SMP
970 993
971config BFIN_L2_WT 994config BFIN_L2_WRITETHROUGH
972 bool "Write through" 995 bool "Write through"
973 depends on !SMP 996 depends on !SMP
974
975config BFIN_L2_NOT_CACHED
976 bool "Not cached"
977
978endchoice 997endchoice
979 998
999
1000comment "Memory Protection Unit"
980config MPU 1001config MPU
981 bool "Enable the memory protection unit (EXPERIMENTAL)" 1002 bool "Enable the memory protection unit (EXPERIMENTAL)"
982 default n 1003 default n
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 2ef669ed9222..477050ad5c53 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -35,10 +35,10 @@
35 35
36#if defined(CONFIG_SMP) && \ 36#if defined(CONFIG_SMP) && \
37 !defined(CONFIG_BFIN_CACHE_COHERENT) 37 !defined(CONFIG_BFIN_CACHE_COHERENT)
38# if defined(CONFIG_BFIN_ICACHE) 38# if defined(CONFIG_BFIN_ICACHEABLE) || defined(CONFIG_BFIN_L2_ICACHEABLE)
39# define __ARCH_SYNC_CORE_ICACHE 39# define __ARCH_SYNC_CORE_ICACHE
40# endif 40# endif
41# if defined(CONFIG_BFIN_DCACHE) 41# if defined(CONFIG_BFIN_DCACHEABLE) || defined(CONFIG_BFIN_L2_DCACHEABLE)
42# define __ARCH_SYNC_CORE_DCACHE 42# define __ARCH_SYNC_CORE_DCACHE
43# endif 43# endif
44#ifndef __ASSEMBLY__ 44#ifndef __ASSEMBLY__
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 5c17dee53b5d..7e55549e180f 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -56,7 +56,7 @@ extern void blackfin_invalidate_entire_icache(void);
56 56
57static inline void flush_icache_range(unsigned start, unsigned end) 57static inline void flush_icache_range(unsigned start, unsigned end)
58{ 58{
59#if defined(CONFIG_BFIN_WB) 59#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
60 blackfin_dcache_flush_range(start, end); 60 blackfin_dcache_flush_range(start, end);
61#endif 61#endif
62 62
@@ -87,9 +87,9 @@ do { memcpy(dst, src, len); \
87#else 87#else
88# define invalidate_dcache_range(start,end) do { } while (0) 88# define invalidate_dcache_range(start,end) do { } while (0)
89#endif 89#endif
90#if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_WB) 90#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
91# define flush_dcache_range(start,end) blackfin_dcache_flush_range((start), (end)) 91# define flush_dcache_range(start,end) blackfin_dcache_flush_range((start), (end))
92# define flush_dcache_page(page) blackfin_dflush_page(page_address(page)) 92# define flush_dcache_page(page) blackfin_dflush_page(page_address(page))
93#else 93#else
94# define flush_dcache_range(start,end) do { } while (0) 94# define flush_dcache_range(start,end) do { } while (0)
95# define flush_dcache_page(page) do { } while (0) 95# define flush_dcache_page(page) do { } while (0)
@@ -100,7 +100,7 @@ extern unsigned long reserved_mem_icache_on;
100 100
101static inline int bfin_addr_dcacheable(unsigned long addr) 101static inline int bfin_addr_dcacheable(unsigned long addr)
102{ 102{
103#ifdef CONFIG_BFIN_DCACHE 103#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
104 if (addr < (_ramend - DMA_UNCACHED_REGION)) 104 if (addr < (_ramend - DMA_UNCACHED_REGION))
105 return 1; 105 return 1;
106#endif 106#endif
@@ -109,7 +109,7 @@ static inline int bfin_addr_dcacheable(unsigned long addr)
109 addr >= _ramend && addr < physical_mem_end) 109 addr >= _ramend && addr < physical_mem_end)
110 return 1; 110 return 1;
111 111
112#ifndef CONFIG_BFIN_L2_NOT_CACHED 112#ifdef CONFIG_BFIN_L2_DCACHEABLE
113 if (addr >= L2_START && addr < L2_START + L2_LENGTH) 113 if (addr >= L2_START && addr < L2_START + L2_LENGTH)
114 return 1; 114 return 1;
115#endif 115#endif
diff --git a/arch/blackfin/include/asm/cplb.h b/arch/blackfin/include/asm/cplb.h
index a75a6a9f0949..c5dacf8f8cf9 100644
--- a/arch/blackfin/include/asm/cplb.h
+++ b/arch/blackfin/include/asm/cplb.h
@@ -37,8 +37,6 @@
37#define L1_IMEMORY ( CPLB_USER_RD | CPLB_VALID | CPLB_LOCK) 37#define L1_IMEMORY ( CPLB_USER_RD | CPLB_VALID | CPLB_LOCK)
38#define SDRAM_INON_CHBL ( CPLB_USER_RD | CPLB_VALID) 38#define SDRAM_INON_CHBL ( CPLB_USER_RD | CPLB_VALID)
39 39
40/*Use the menuconfig cache policy here - CONFIG_BFIN_WT/CONFIG_BFIN_WB*/
41
42#if ANOMALY_05000158 40#if ANOMALY_05000158
43#define ANOMALY_05000158_WORKAROUND 0x200 41#define ANOMALY_05000158_WORKAROUND 0x200
44#else 42#else
@@ -47,10 +45,12 @@
47 45
48#define CPLB_COMMON (CPLB_DIRTY | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND) 46#define CPLB_COMMON (CPLB_DIRTY | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND)
49 47
50#ifdef CONFIG_BFIN_WB /*Write Back Policy */ 48#ifdef CONFIG_BFIN_EXTMEM_WRITEBACK
51#define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_COMMON) 49#define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_COMMON)
52#else /*Write Through */ 50#elif defined(CONFIG_BFIN_EXTMEM_WRITETHROUGH)
53#define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON) 51#define SDRAM_DGENERIC (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON)
52#else
53#define SDRAM_DGENERIC (CPLB_COMMON)
54#endif 54#endif
55 55
56#define SDRAM_DNON_CHBL (CPLB_COMMON) 56#define SDRAM_DNON_CHBL (CPLB_COMMON)
@@ -61,21 +61,23 @@
61 61
62#ifdef CONFIG_SMP 62#ifdef CONFIG_SMP
63#define L2_ATTR (INITIAL_T | I_CPLB | D_CPLB) 63#define L2_ATTR (INITIAL_T | I_CPLB | D_CPLB)
64#define L2_IMEMORY (CPLB_COMMON) 64#define L2_IMEMORY (CPLB_COMMON | PAGE_SIZE_1MB)
65#define L2_DMEMORY (CPLB_LOCK | CPLB_COMMON) 65#define L2_DMEMORY (CPLB_LOCK | CPLB_COMMON | PAGE_SIZE_1MB)
66 66
67#else 67#else
68#define L2_ATTR (INITIAL_T | SWITCH_T | I_CPLB | D_CPLB) 68#define L2_ATTR (INITIAL_T | SWITCH_T | I_CPLB | D_CPLB)
69#define L2_IMEMORY (SDRAM_IGENERIC) 69# if defined(CONFIG_BFIN_L2_ICACHEABLE)
70 70# define L2_IMEMORY (CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | PAGE_SIZE_1MB)
71# if defined(CONFIG_BFIN_L2_WB) 71# else
72# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_COMMON) 72# define L2_IMEMORY ( CPLB_USER_RD | CPLB_VALID | PAGE_SIZE_1MB)
73# elif defined(CONFIG_BFIN_L2_WT) 73# endif
74# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON) 74
75# elif defined(CONFIG_BFIN_L2_NOT_CACHED) 75# if defined(CONFIG_BFIN_L2_WRITEBACK)
76# define L2_DMEMORY (CPLB_COMMON) 76# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_COMMON | PAGE_SIZE_1MB)
77# elif defined(CONFIG_BFIN_L2_WRITETHROUGH)
78# define L2_DMEMORY (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_COMMON | PAGE_SIZE_1MB)
77# else 79# else
78# define L2_DMEMORY (0) 80# define L2_DMEMORY (CPLB_COMMON | PAGE_SIZE_1MB)
79# endif 81# endif
80#endif /* CONFIG_SMP */ 82#endif /* CONFIG_SMP */
81 83
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index c006a44527bf..36193eed9a1f 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -46,13 +46,13 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
46 46
47 printk(KERN_INFO "MPU: setting up cplb tables with memory protection\n"); 47 printk(KERN_INFO "MPU: setting up cplb tables with memory protection\n");
48 48
49#ifdef CONFIG_BFIN_ICACHE 49#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE
50 i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; 50 i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
51#endif 51#endif
52 52
53#ifdef CONFIG_BFIN_DCACHE 53#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
54 d_cache = CPLB_L1_CHBL; 54 d_cache = CPLB_L1_CHBL;
55#ifdef CONFIG_BFIN_WT 55#ifdef CONFIG_BFIN_EXTMEM_WRITETROUGH
56 d_cache |= CPLB_L1_AOW | CPLB_WT; 56 d_cache |= CPLB_L1_AOW | CPLB_WT;
57#endif 57#endif
58#endif 58#endif
@@ -91,9 +91,9 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
91 /* Cover L2 memory */ 91 /* Cover L2 memory */
92#if L2_LENGTH > 0 92#if L2_LENGTH > 0
93 dcplb_tbl[cpu][i_d].addr = L2_START; 93 dcplb_tbl[cpu][i_d].addr = L2_START;
94 dcplb_tbl[cpu][i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB; 94 dcplb_tbl[cpu][i_d++].data = L2_DMEMORY;
95 icplb_tbl[cpu][i_i].addr = L2_START; 95 icplb_tbl[cpu][i_i].addr = L2_START;
96 icplb_tbl[cpu][i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB; 96 icplb_tbl[cpu][i_i++].data = L2_IMEMORY;
97#endif 97#endif
98 98
99 first_mask_dcplb = i_d; 99 first_mask_dcplb = i_d;
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
index 784923e52a9a..bcdfe9b0b71f 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
@@ -150,15 +150,19 @@ static noinline int dcplb_miss(unsigned int cpu)
150 nr_dcplb_miss[cpu]++; 150 nr_dcplb_miss[cpu]++;
151 151
152 d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; 152 d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
153#ifdef CONFIG_BFIN_DCACHE 153#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
154 if (bfin_addr_dcacheable(addr)) { 154 if (bfin_addr_dcacheable(addr)) {
155 d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; 155 d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
156#ifdef CONFIG_BFIN_WT 156# ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH
157 d_data |= CPLB_L1_AOW | CPLB_WT; 157 d_data |= CPLB_L1_AOW | CPLB_WT;
158#endif 158# endif
159 } 159 }
160#endif 160#endif
161 if (addr >= physical_mem_end) { 161
162 if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) {
163 addr = L2_START;
164 d_data = L2_DMEMORY;
165 } else if (addr >= physical_mem_end) {
162 if (addr >= ASYNC_BANK0_BASE && addr < ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE 166 if (addr >= ASYNC_BANK0_BASE && addr < ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE
163 && (status & FAULT_USERSUPV)) { 167 && (status & FAULT_USERSUPV)) {
164 addr &= ~0x3fffff; 168 addr &= ~0x3fffff;
@@ -235,7 +239,7 @@ static noinline int icplb_miss(unsigned int cpu)
235 239
236 i_data = CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4KB; 240 i_data = CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4KB;
237 241
238#ifdef CONFIG_BFIN_ICACHE 242#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE
239 /* 243 /*
240 * Normal RAM, and possibly the reserved memory area, are 244 * Normal RAM, and possibly the reserved memory area, are
241 * cacheable. 245 * cacheable.
@@ -245,7 +249,10 @@ static noinline int icplb_miss(unsigned int cpu)
245 i_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; 249 i_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
246#endif 250#endif
247 251
248 if (addr >= physical_mem_end) { 252 if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) {
253 addr = L2_START;
254 i_data = L2_IMEMORY;
255 } else if (addr >= physical_mem_end) {
249 if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH 256 if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH
250 && (status & FAULT_USERSUPV)) { 257 && (status & FAULT_USERSUPV)) {
251 addr &= ~(1 * 1024 * 1024 - 1); 258 addr &= ~(1 * 1024 * 1024 - 1);
@@ -365,13 +372,18 @@ void set_mask_dcplbs(unsigned long *masks, unsigned int cpu)
365 local_irq_save_hw(flags); 372 local_irq_save_hw(flags);
366 current_rwx_mask[cpu] = masks; 373 current_rwx_mask[cpu] = masks;
367 374
368 d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; 375 if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) {
369#ifdef CONFIG_BFIN_DCACHE 376 addr = L2_START;
370 d_data |= CPLB_L1_CHBL; 377 d_data = L2_DMEMORY;
371#ifdef CONFIG_BFIN_WT 378 } else {
372 d_data |= CPLB_L1_AOW | CPLB_WT; 379 d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
373#endif 380#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE
381 d_data |= CPLB_L1_CHBL;
382# ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH
383 d_data |= CPLB_L1_AOW | CPLB_WT;
384# endif
374#endif 385#endif
386 }
375 387
376 disable_dcplb(); 388 disable_dcplb();
377 for (i = first_mask_dcplb; i < first_switched_dcplb; i++) { 389 for (i = first_mask_dcplb; i < first_switched_dcplb; i++) {
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index b2782eae31e1..8d7892820130 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -117,15 +117,49 @@ void __cpuinit bfin_setup_caches(unsigned int cpu)
117 */ 117 */
118#ifdef CONFIG_BFIN_ICACHE 118#ifdef CONFIG_BFIN_ICACHE
119 printk(KERN_INFO "Instruction Cache Enabled for CPU%u\n", cpu); 119 printk(KERN_INFO "Instruction Cache Enabled for CPU%u\n", cpu);
120 printk(KERN_INFO " External memory:"
121# ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE
122 " cacheable"
123# else
124 " uncacheable"
125# endif
126 " in instruction cache\n");
127 if (L2_LENGTH)
128 printk(KERN_INFO " L2 SRAM :"
129# ifdef CONFIG_BFIN_L2_ICACHEABLE
130 " cacheable"
131# else
132 " uncacheable"
133# endif
134 " in instruction cache\n");
135
136#else
137 printk(KERN_INFO "Instruction Cache Disabled for CPU%u\n", cpu);
120#endif 138#endif
139
121#ifdef CONFIG_BFIN_DCACHE 140#ifdef CONFIG_BFIN_DCACHE
122 printk(KERN_INFO "Data Cache Enabled for CPU%u" 141 printk(KERN_INFO "Data Cache Enabled for CPU%u\n", cpu);
123# if defined CONFIG_BFIN_WB 142 printk(KERN_INFO " External memory:"
124 " (write-back)" 143# if defined CONFIG_BFIN_EXTMEM_WRITEBACK
125# elif defined CONFIG_BFIN_WT 144 " cacheable (write-back)"
126 " (write-through)" 145# elif defined CONFIG_BFIN_EXTMEM_WRITETHROUGH
146 " cacheable (write-through)"
147# else
148 " uncacheable"
149# endif
150 " in data cache\n");
151 if (L2_LENGTH)
152 printk(KERN_INFO " L2 SRAM :"
153# if defined CONFIG_BFIN_L2_WRITEBACK
154 " cacheable (write-back)"
155# elif defined CONFIG_BFIN_L2_WRITETHROUGH
156 " cacheable (write-through)"
157# else
158 " uncacheable"
127# endif 159# endif
128 "\n", cpu); 160 " in data cache\n");
161#else
162 printk(KERN_INFO "Data Cache Disabled for CPU%u\n", cpu);
129#endif 163#endif
130} 164}
131 165
@@ -516,7 +550,7 @@ static __init void memory_setup(void)
516 && ((unsigned long *)mtd_phys)[1] == ROMSB_WORD1) 550 && ((unsigned long *)mtd_phys)[1] == ROMSB_WORD1)
517 mtd_size = 551 mtd_size =
518 PAGE_ALIGN(be32_to_cpu(((unsigned long *)mtd_phys)[2])); 552 PAGE_ALIGN(be32_to_cpu(((unsigned long *)mtd_phys)[2]));
519# if (defined(CONFIG_BFIN_ICACHE) && ANOMALY_05000263) 553# if (defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) && ANOMALY_05000263)
520 /* Due to a Hardware Anomaly we need to limit the size of usable 554 /* Due to a Hardware Anomaly we need to limit the size of usable
521 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on 555 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on
522 * 05000263 - Hardware loop corrupted when taking an ICPLB exception 556 * 05000263 - Hardware loop corrupted when taking an ICPLB exception
@@ -544,7 +578,7 @@ static __init void memory_setup(void)
544 dma_memcpy((void *)uclinux_ram_map.phys, _end, uclinux_ram_map.size); 578 dma_memcpy((void *)uclinux_ram_map.phys, _end, uclinux_ram_map.size);
545#endif /* CONFIG_MTD_UCLINUX */ 579#endif /* CONFIG_MTD_UCLINUX */
546 580
547#if (defined(CONFIG_BFIN_ICACHE) && ANOMALY_05000263) 581#if (defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) && ANOMALY_05000263)
548 /* Due to a Hardware Anomaly we need to limit the size of usable 582 /* Due to a Hardware Anomaly we need to limit the size of usable
549 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on 583 * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on
550 * 05000263 - Hardware loop corrupted when taking an ICPLB exception 584 * 05000263 - Hardware loop corrupted when taking an ICPLB exception
@@ -1158,16 +1192,25 @@ static int show_cpuinfo(struct seq_file *m, void *v)
1158 icache_size = 0; 1192 icache_size = 0;
1159 1193
1160 seq_printf(m, "cache size\t: %d KB(L1 icache) " 1194 seq_printf(m, "cache size\t: %d KB(L1 icache) "
1161 "%d KB(L1 dcache%s) %d KB(L2 cache)\n", 1195 "%d KB(L1 dcache) %d KB(L2 cache)\n",
1162 icache_size, dcache_size, 1196 icache_size, dcache_size, 0);
1163#if defined CONFIG_BFIN_WB
1164 "-wb"
1165#elif defined CONFIG_BFIN_WT
1166 "-wt"
1167#endif
1168 "", 0);
1169
1170 seq_printf(m, "%s\n", cache); 1197 seq_printf(m, "%s\n", cache);
1198 seq_printf(m, "external memory\t: "
1199#if defined(CONFIG_BFIN_EXTMEM_ICACHEABLE)
1200 "cacheable"
1201#else
1202 "uncacheable"
1203#endif
1204 " in instruction cache\n");
1205 seq_printf(m, "external memory\t: "
1206#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK)
1207 "cacheable (write-back)"
1208#elif defined(CONFIG_BFIN_EXTMEM_WRITETHROUGH)
1209 "cacheable (write-through)"
1210#else
1211 "uncacheable"
1212#endif
1213 " in data cache\n");
1171 1214
1172 if (icache_size) 1215 if (icache_size)
1173 seq_printf(m, "icache setup\t: %d Sub-banks/%d Ways, %d Lines/Way\n", 1216 seq_printf(m, "icache setup\t: %d Sub-banks/%d Ways, %d Lines/Way\n",
@@ -1240,8 +1283,25 @@ static int show_cpuinfo(struct seq_file *m, void *v)
1240 if (cpu_num != num_possible_cpus() - 1) 1283 if (cpu_num != num_possible_cpus() - 1)
1241 return 0; 1284 return 0;
1242 1285
1243 if (L2_LENGTH) 1286 if (L2_LENGTH) {
1244 seq_printf(m, "L2 SRAM\t\t: %dKB\n", L2_LENGTH/0x400); 1287 seq_printf(m, "L2 SRAM\t\t: %dKB\n", L2_LENGTH/0x400);
1288 seq_printf(m, "L2 SRAM\t\t: "
1289#if defined(CONFIG_BFIN_L2_ICACHEABLE)
1290 "cacheable"
1291#else
1292 "uncacheable"
1293#endif
1294 " in instruction cache\n");
1295 seq_printf(m, "L2 SRAM\t\t: "
1296#if defined(CONFIG_BFIN_L2_WRITEBACK)
1297 "cacheable (write-back)"
1298#elif defined(CONFIG_BFIN_L2_WRITETHROUGH)
1299 "cacheable (write-through)"
1300#else
1301 "uncacheable"
1302#endif
1303 " in data cache\n");
1304 }
1245 seq_printf(m, "board name\t: %s\n", bfin_board_name); 1305 seq_printf(m, "board name\t: %s\n", bfin_board_name);
1246 seq_printf(m, "board memory\t: %ld kB (0x%p -> 0x%p)\n", 1306 seq_printf(m, "board memory\t: %ld kB (0x%p -> 0x%p)\n",
1247 physical_mem_end >> 10, (void *)0, (void *)physical_mem_end); 1307 physical_mem_end >> 10, (void *)0, (void *)physical_mem_end);
diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
index da93d9207165..5998d8632a73 100644
--- a/arch/blackfin/mach-common/arch_checks.c
+++ b/arch/blackfin/mach-common/arch_checks.c
@@ -74,7 +74,7 @@
74 74
75/* if 220 exists, can not set External Memory WB and L2 not_cached, either External Memory not_cached and L2 WB */ 75/* if 220 exists, can not set External Memory WB and L2 not_cached, either External Memory not_cached and L2 WB */
76#if ANOMALY_05000220 && \ 76#if ANOMALY_05000220 && \
77 ((defined(CONFIG_BFIN_WB) && defined(CONFIG_BFIN_L2_NOT_CACHED)) || \ 77 ((defined(CONFIG_BFIN_EXTMEM_WRITEBACK) && !defined(CONFIG_BFIN_L2_DCACHEABLE)) || \
78 (!defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_L2_WB))) 78 (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))
79# error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB. 79# error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.
80#endif 80#endif
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index 70e3411f558c..85c658083279 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -141,7 +141,7 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
141 sclk = get_sclk() / 1000; 141 sclk = get_sclk() / 1000;
142 142
143#if ANOMALY_05000273 || ANOMALY_05000274 || \ 143#if ANOMALY_05000273 || ANOMALY_05000274 || \
144 (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE)) 144 (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_EXTMEM_DCACHEABLE))
145 min_cclk = sclk * 2; 145 min_cclk = sclk * 2;
146#else 146#else
147 min_cclk = sclk; 147 min_cclk = sclk;
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index bce5a84be49f..9e7e27b7fc8d 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -132,7 +132,7 @@ int bf53x_resume_l1_mem(unsigned char *memptr)
132 return 0; 132 return 0;
133} 133}
134 134
135#ifdef CONFIG_BFIN_WB 135#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
136static void flushinv_all_dcache(void) 136static void flushinv_all_dcache(void)
137{ 137{
138 u32 way, bank, subbank, set; 138 u32 way, bank, subbank, set;
@@ -175,7 +175,7 @@ static inline void dcache_disable(void)
175#ifdef CONFIG_BFIN_DCACHE 175#ifdef CONFIG_BFIN_DCACHE
176 unsigned long ctrl; 176 unsigned long ctrl;
177 177
178#ifdef CONFIG_BFIN_WB 178#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
179 flushinv_all_dcache(); 179 flushinv_all_dcache();
180#endif 180#endif
181 SSYNC(); 181 SSYNC();
diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c
index 014a55abd09a..68bd0bd680cd 100644
--- a/arch/blackfin/mm/init.c
+++ b/arch/blackfin/mm/init.c
@@ -160,7 +160,7 @@ void __init mem_init(void)
160 160
161 /* do not count in kernel image between _rambase and _ramstart */ 161 /* do not count in kernel image between _rambase and _ramstart */
162 reservedpages -= (_ramstart - _rambase) >> PAGE_SHIFT; 162 reservedpages -= (_ramstart - _rambase) >> PAGE_SHIFT;
163#if (defined(CONFIG_BFIN_ICACHE) && ANOMALY_05000263) 163#if (defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) && ANOMALY_05000263)
164 reservedpages += (_ramend - memory_end - DMA_UNCACHED_REGION) >> PAGE_SHIFT; 164 reservedpages += (_ramend - memory_end - DMA_UNCACHED_REGION) >> PAGE_SHIFT;
165#endif 165#endif
166 166