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>

arch/blackfin/include/asm/bfin-global.h

@@ -101,7 +101,7 @@ extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
 extern unsigned long _ramstart, _ramend, _rambase;
 extern unsigned long memory_start, memory_end, physical_mem_end;
 extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
-	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[],
+	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
 	_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
 	_ebss_l2[], _l2_lma_start[];
 

arch/blackfin/kernel/setup.c

@@ -119,23 +119,23 @@ void __init bfin_relocate_l1_mem(void)
 	/* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */
 	dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length);
 
-	l1_data_a_length = _ebss_l1 - _sdata_l1;
+	l1_data_a_length = _sbss_l1 - _sdata_l1;
 	if (l1_data_a_length > L1_DATA_A_LENGTH)
 		panic("L1 Data SRAM Bank A Overflow\n");
 
-	/* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */
+	/* Copy _sdata_l1 to _sbss_l1 to L1 data bank A SRAM */
 	dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length);
 
-	l1_data_b_length = _ebss_b_l1 - _sdata_b_l1;
+	l1_data_b_length = _sbss_b_l1 - _sdata_b_l1;
 	if (l1_data_b_length > L1_DATA_B_LENGTH)
 		panic("L1 Data SRAM Bank B Overflow\n");
 
-	/* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */
+	/* Copy _sdata_b_l1 to _sbss_b_l1 to L1 data bank B SRAM */
 	dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
 			l1_data_a_length, l1_data_b_length);
 
 	if (L2_LENGTH != 0) {
-		l2_length = _ebss_l2 - _stext_l2;
+		l2_length = _sbss_l2 - _stext_l2;
 		if (l2_length > L2_LENGTH)
 			panic("L2 SRAM Overflow\n");