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authorMike Frysinger <vapier.adi@gmail.com>2008-10-27 06:21:43 -0400
committerBryan Wu <cooloney@kernel.org>2008-10-27 06:21:43 -0400
commit3b1f26a50a2bfbd2825345b49b1d7f78432a7a4c (patch)
tree05e1ee9dced5ec457daa5aeb7a7aa911930de9e4 /arch/blackfin
parent6776cf4476833df0f1e96bd9dba18c1ea4f582d5 (diff)
Blackfin arch: don't copy bss when copying L1
when copying L1 regions, go to the start of bss rather than end since we have code to zero it out already Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/include/asm/bfin-global.h2
-rw-r--r--arch/blackfin/kernel/setup.c10
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index 56dcb0a2d24..77295666c34 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -101,7 +101,7 @@ extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
101extern unsigned long _ramstart, _ramend, _rambase; 101extern unsigned long _ramstart, _ramend, _rambase;
102extern unsigned long memory_start, memory_end, physical_mem_end; 102extern unsigned long memory_start, memory_end, physical_mem_end;
103extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], 103extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
104 _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[], 104 _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
105 _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], 105 _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
106 _ebss_l2[], _l2_lma_start[]; 106 _ebss_l2[], _l2_lma_start[];
107 107
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 7f35d1046cd..8337dc3a62d 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -119,23 +119,23 @@ void __init bfin_relocate_l1_mem(void)
119 /* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */ 119 /* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */
120 dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length); 120 dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length);
121 121
122 l1_data_a_length = _ebss_l1 - _sdata_l1; 122 l1_data_a_length = _sbss_l1 - _sdata_l1;
123 if (l1_data_a_length > L1_DATA_A_LENGTH) 123 if (l1_data_a_length > L1_DATA_A_LENGTH)
124 panic("L1 Data SRAM Bank A Overflow\n"); 124 panic("L1 Data SRAM Bank A Overflow\n");
125 125
126 /* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */ 126 /* Copy _sdata_l1 to _sbss_l1 to L1 data bank A SRAM */
127 dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length); 127 dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length);
128 128
129 l1_data_b_length = _ebss_b_l1 - _sdata_b_l1; 129 l1_data_b_length = _sbss_b_l1 - _sdata_b_l1;
130 if (l1_data_b_length > L1_DATA_B_LENGTH) 130 if (l1_data_b_length > L1_DATA_B_LENGTH)
131 panic("L1 Data SRAM Bank B Overflow\n"); 131 panic("L1 Data SRAM Bank B Overflow\n");
132 132
133 /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */ 133 /* Copy _sdata_b_l1 to _sbss_b_l1 to L1 data bank B SRAM */
134 dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length + 134 dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
135 l1_data_a_length, l1_data_b_length); 135 l1_data_a_length, l1_data_b_length);
136 136
137 if (L2_LENGTH != 0) { 137 if (L2_LENGTH != 0) {
138 l2_length = _ebss_l2 - _stext_l2; 138 l2_length = _sbss_l2 - _stext_l2;
139 if (l2_length > L2_LENGTH) 139 if (l2_length > L2_LENGTH)
140 panic("L2 SRAM Overflow\n"); 140 panic("L2 SRAM Overflow\n");
141 141