Blackfin: initial XIP support

[safe/jmp/linux-2.6] / arch / blackfin / kernel / cplb-mpu / cplbinit.c

diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index 8d42b9e..30fd641 100644 (file)
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -64,6 +64,15 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
                icplb_tbl[cpu][i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
        }
 
+#ifdef CONFIG_ROMKERNEL
+       /* Cover kernel XIP flash area */
+       addr = CONFIG_ROM_BASE & ~(4 * 1024 * 1024 - 1);
+       dcplb_tbl[cpu][i_d].addr = addr;
+       dcplb_tbl[cpu][i_d++].data = d_data | CPLB_USER_RD;
+       icplb_tbl[cpu][i_i].addr = addr;
+       icplb_tbl[cpu][i_i++].data = i_data | CPLB_USER_RD;
+#endif
+
        /* Cover L1 memory.  One 4M area for code and data each is enough.  */
 #if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0
        dcplb_tbl[cpu][i_d].addr = get_l1_data_a_start_cpu(cpu);