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-rw-r--r--arch/microblaze/kernel/head.S12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index cb7815cfe5ab..da6a5f5dc766 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -51,6 +51,12 @@ swapper_pg_dir:
51 51
52 .text 52 .text
53ENTRY(_start) 53ENTRY(_start)
54#if CONFIG_KERNEL_BASE_ADDR == 0
55 brai TOPHYS(real_start)
56 .org 0x100
57real_start:
58#endif
59
54 mfs r1, rmsr 60 mfs r1, rmsr
55 andi r1, r1, ~2 61 andi r1, r1, ~2
56 mts rmsr, r1 62 mts rmsr, r1
@@ -99,8 +105,8 @@ no_fdt_arg:
99 tophys(r4,r4) /* convert to phys address */ 105 tophys(r4,r4) /* convert to phys address */
100 ori r3, r0, COMMAND_LINE_SIZE - 1 /* number of loops */ 106 ori r3, r0, COMMAND_LINE_SIZE - 1 /* number of loops */
101_copy_command_line: 107_copy_command_line:
102 lbu r2, r5, r6 /* r7=r5+r6 - r5 contain pointer to command line */ 108 lbu r2, r5, r6 /* r2=r5+r6 - r5 contain pointer to command line */
103 sb r2, r4, r6 /* addr[r4+r6]= r7*/ 109 sb r2, r4, r6 /* addr[r4+r6]= r2*/
104 addik r6, r6, 1 /* increment counting */ 110 addik r6, r6, 1 /* increment counting */
105 bgtid r3, _copy_command_line /* loop for all entries */ 111 bgtid r3, _copy_command_line /* loop for all entries */
106 addik r3, r3, -1 /* descrement loop */ 112 addik r3, r3, -1 /* descrement loop */
@@ -128,7 +134,7 @@ _copy_bram:
128 * virtual to physical. 134 * virtual to physical.
129 */ 135 */
130 nop 136 nop
131 addik r3, r0, 63 /* Invalidate all TLB entries */ 137 addik r3, r0, MICROBLAZE_TLB_SIZE -1 /* Invalidate all TLB entries */
132_invalidate: 138_invalidate:
133 mts rtlbx, r3 139 mts rtlbx, r3
134 mts rtlbhi, r0 /* flush: ensure V is clear */ 140 mts rtlbhi, r0 /* flush: ensure V is clear */