Blackfin arch: Extend sram malloc to handle L2 SRAM.

[pandora-kernel.git] / arch / blackfin / kernel / setup.c

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 861a1db..8671d1d 100644 (file)
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -104,6 +104,7 @@ void __init bf53x_relocate_l1_mem(void)
        unsigned long l1_code_length;
        unsigned long l1_data_a_length;
        unsigned long l1_data_b_length;
+       unsigned long l2_length;
 
        l1_code_length = _etext_l1 - _stext_l1;
        if (l1_code_length > L1_CODE_LENGTH)
@@ -129,6 +130,15 @@ void __init bf53x_relocate_l1_mem(void)
        /* Copy _sdata_b_l1 to _ebss_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);
+
+#ifdef L2_LENGTH
+       l2_length = _ebss_l2 - _stext_l2;
+       if (l2_length > L2_LENGTH)
+               panic("L2 SRAM Overflow\n");
+
+       /* Copy _stext_l2 to _edata_l2 to L2 SRAM */
+       dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
+#endif
 }
 
 /* add_memory_region to memmap */