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authorBernd Schmidt <bernd.schmidt@analog.com>2007-07-12 16:25:29 +0800
committerBryan Wu <bryan.wu@analog.com>2007-07-12 16:25:29 +0800
commit29440a2b4cd37e32dfe0fa60ef1665775b24dab1 (patch)
tree1b7bd1c1793feba0719f04de2eb68e418498e827 /include/asm-blackfin
parent474f1a667d4bd40b6dcacc6870b70f4d2ba4e155 (diff)
Blackfin arch: Start untangling the CPLB handling code.
- Move cache initialization to C from assembly. - Move anomaly workaround for writing [ID]MEM_CONTROL to assembly, so that we don't have to mess around with .align directives in C source. - Fix a bug where bfin_write_DMEM_CONTROL would write to IMEM_CONTROL - Break out CPLB related code from kernel/setup.c into their own file. - Don't define variables in header files, only declare them. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'include/asm-blackfin')
-rw-r--r--include/asm-blackfin/cplbinit.h133
-rw-r--r--include/asm-blackfin/mach-common/cdef_LPBlackfin.h23
2 files changed, 15 insertions, 141 deletions
diff --git a/include/asm-blackfin/cplbinit.h b/include/asm-blackfin/cplbinit.h
index e14ea397cdb..bec6ecdf1bd 100644
--- a/include/asm-blackfin/cplbinit.h
+++ b/include/asm-blackfin/cplbinit.h
@@ -57,8 +57,8 @@ struct cplb_tab {
u16 size;
};
-u_long icplb_table[MAX_CPLBS+1];
-u_long dcplb_table[MAX_CPLBS+1];
+extern u_long icplb_table[MAX_CPLBS+1];
+extern u_long dcplb_table[MAX_CPLBS+1];
/* Till here we are discussing about the static memory management model.
* However, the operating envoronments commonly define more CPLB
@@ -70,134 +70,27 @@ u_long dcplb_table[MAX_CPLBS+1];
*/
#ifdef CONFIG_CPLB_SWITCH_TAB_L1
-u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data));
-u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data));
+extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data));
+extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data));
#ifdef CONFIG_CPLB_INFO
-u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data));
-u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data));
+extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data));
+extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data));
#endif /* CONFIG_CPLB_INFO */
#else
-u_long ipdt_table[MAX_SWITCH_I_CPLBS+1];
-u_long dpdt_table[MAX_SWITCH_D_CPLBS+1];
+extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1];
+extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1];
#ifdef CONFIG_CPLB_INFO
-u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS];
-u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS];
+extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS];
+extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS];
#endif /* CONFIG_CPLB_INFO */
#endif /*CONFIG_CPLB_SWITCH_TAB_L1*/
-struct s_cplb {
- struct cplb_tab init_i;
- struct cplb_tab init_d;
- struct cplb_tab switch_i;
- struct cplb_tab switch_d;
-};
+extern unsigned long reserved_mem_dcache_on;
+extern unsigned long reserved_mem_icache_on;
-#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE)
-static struct cplb_desc cplb_data[] = {
- {
- .start = 0,
- .end = SIZE_1K,
- .psize = SIZE_1K,
- .attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
- .i_conf = SDRAM_OOPS,
- .d_conf = SDRAM_OOPS,
-#if defined(CONFIG_DEBUG_HUNT_FOR_ZERO)
- .valid = 1,
-#else
- .valid = 0,
-#endif
- .name = "ZERO Pointer Saveguard",
- },
- {
- .start = L1_CODE_START,
- .end = L1_CODE_START + L1_CODE_LENGTH,
- .psize = SIZE_4M,
- .attr = INITIAL_T | SWITCH_T | I_CPLB,
- .i_conf = L1_IMEMORY,
- .d_conf = 0,
- .valid = 1,
- .name = "L1 I-Memory",
- },
- {
- .start = L1_DATA_A_START,
- .end = L1_DATA_B_START + L1_DATA_B_LENGTH,
- .psize = SIZE_4M,
- .attr = INITIAL_T | SWITCH_T | D_CPLB,
- .i_conf = 0,
- .d_conf = L1_DMEMORY,
-#if ((L1_DATA_A_LENGTH > 0) || (L1_DATA_B_LENGTH > 0))
- .valid = 1,
-#else
- .valid = 0,
-#endif
- .name = "L1 D-Memory",
- },
- {
- .start = 0,
- .end = 0, /* dynamic */
- .psize = 0,
- .attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB,
- .i_conf = SDRAM_IGENERIC,
- .d_conf = SDRAM_DGENERIC,
- .valid = 1,
- .name = "SDRAM Kernel",
- },
- {
- .start = 0, /* dynamic */
- .end = 0, /* dynamic */
- .psize = 0,
- .attr = INITIAL_T | SWITCH_T | D_CPLB,
- .i_conf = SDRAM_IGENERIC,
- .d_conf = SDRAM_DNON_CHBL,
- .valid = 1,
- .name = "SDRAM RAM MTD",
- },
- {
- .start = 0, /* dynamic */
- .end = 0, /* dynamic */
- .psize = SIZE_1M,
- .attr = INITIAL_T | SWITCH_T | D_CPLB,
- .d_conf = SDRAM_DNON_CHBL,
- .valid = 1,//(DMA_UNCACHED_REGION > 0),
- .name = "SDRAM Uncached DMA ZONE",
- },
- {
- .start = 0, /* dynamic */
- .end = 0, /* dynamic */
- .psize = 0,
- .attr = SWITCH_T | D_CPLB,
- .i_conf = 0, /* dynamic */
- .d_conf = 0, /* dynamic */
- .valid = 1,
- .name = "SDRAM Reserved Memory",
- },
- {
- .start = ASYNC_BANK0_BASE,
- .end = ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE,
- .psize = 0,
- .attr = SWITCH_T | D_CPLB,
- .d_conf = SDRAM_EBIU,
- .valid = 1,
- .name = "ASYNC Memory",
- },
- {
-#if defined(CONFIG_BF561)
- .start = L2_SRAM,
- .end = L2_SRAM_END,
- .psize = SIZE_1M,
- .attr = SWITCH_T | D_CPLB,
- .i_conf = L2_MEMORY,
- .d_conf = L2_MEMORY,
- .valid = 1,
-#else
- .valid = 0,
-#endif
- .name = "L2 Memory",
- }
-};
-#endif
+extern void generate_cpl_tables(void);
diff --git a/include/asm-blackfin/mach-common/cdef_LPBlackfin.h b/include/asm-blackfin/mach-common/cdef_LPBlackfin.h
index 58f878947cb..94ed381e560 100644
--- a/include/asm-blackfin/mach-common/cdef_LPBlackfin.h
+++ b/include/asm-blackfin/mach-common/cdef_LPBlackfin.h
@@ -40,16 +40,7 @@
#define bfin_write_SRAM_BASE_ADDRESS(val) bfin_write32(SRAM_BASE_ADDRESS,val)
#define bfin_read_DMEM_CONTROL() bfin_read32(DMEM_CONTROL)
#ifdef ANOMALY_05000125
-static __inline__ void bfin_write_DMEM_CONTROL(unsigned int val)
-{
- unsigned long flags, iwr;
-
- local_irq_save(flags);
- __asm__(".align 8\n");
- bfin_write32(IMEM_CONTROL, val);
- __builtin_bfin_ssync();
- local_irq_restore(flags);
-}
+extern void bfin_write_DMEM_CONTROL(unsigned int val);
#else
#define bfin_write_DMEM_CONTROL(val) bfin_write32(DMEM_CONTROL,val)
#endif
@@ -139,17 +130,7 @@ static __inline__ void bfin_write_DMEM_CONTROL(unsigned int val)
*/
#define bfin_read_IMEM_CONTROL() bfin_read32(IMEM_CONTROL)
#ifdef ANOMALY_05000125
-static __inline__ void bfin_write_IMEM_CONTROL(unsigned int val)
-{
- unsigned long flags, iwr;
-
- local_irq_save(flags);
- __asm__(".align 8\n");
- bfin_write32(IMEM_CONTROL, val);
- __builtin_bfin_ssync();
- local_irq_restore(flags);
-
-}
+extern void bfin_write_IMEM_CONTROL(unsigned int val);
#else
#define bfin_write_IMEM_CONTROL(val) bfin_write32(IMEM_CONTROL,val)
#endif