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-rw-r--r--arch/blackfin/mach-bf561/head.S20
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S
index ad9187a866a5..3029e940ddcd 100644
--- a/arch/blackfin/mach-bf561/head.S
+++ b/arch/blackfin/mach-bf561/head.S
@@ -46,14 +46,16 @@
46 46
47ENTRY(__start) 47ENTRY(__start)
48ENTRY(__stext) 48ENTRY(__stext)
49 /* R0: argument of command line string, passed from uboot, save it */ 49 /* R0: argument of command line string, passed from uboot, save it */
50 R7 = R0; 50 R7 = R0;
51 /* Set the SYSCFG register */ 51 /* Set the SYSCFG register:
52 * Enable Cycle Counter and Nesting Of Interrupts (3rd Bit)
53 */
52 R0 = 0x36; 54 R0 = 0x36;
53 SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ 55 SYSCFG = R0;
54 R0 = 0; 56 R0 = 0;
55 57
56 /*Clear Out All the data and pointer Registers*/ 58 /* Clear Out All the data and pointer Registers */
57 R1 = R0; 59 R1 = R0;
58 R2 = R0; 60 R2 = R0;
59 R3 = R0; 61 R3 = R0;
@@ -75,7 +77,7 @@ ENTRY(__stext)
75 L2 = r0; 77 L2 = r0;
76 L3 = r0; 78 L3 = r0;
77 79
78 /* Clear Out All the DAG Registers*/ 80 /* Clear Out All the DAG Registers */
79 B0 = r0; 81 B0 = r0;
80 B1 = r0; 82 B1 = r0;
81 B2 = r0; 83 B2 = r0;
@@ -238,7 +240,7 @@ ENTRY(_real_start)
238 p2.h = ___bss_stop; 240 p2.h = ___bss_stop;
239 r0 = 0; 241 r0 = 0;
240 p2 -= p1; 242 p2 -= p1;
241 lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2; 243 lsetup (.L_clear_bss, .L_clear_bss) lc0 = p2;
242.L_clear_bss: 244.L_clear_bss:
243 B[p1++] = r0; 245 B[p1++] = r0;
244 246
@@ -253,11 +255,11 @@ ENTRY(_real_start)
253 r0 = r0 >> 1; 255 r0 = r0 >> 1;
254 p2 = r0; 256 p2 = r0;
255 r0 = 0; 257 r0 = 0;
256 lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2; 258 lsetup (.L_clear_zero, .L_clear_zero) lc0 = p2;
257.L_clear_zero: 259.L_clear_zero:
258 W[p1++] = r0; 260 W[p1++] = r0;
259 261
260/* pass the uboot arguments to the global value command line */ 262 /* pass the uboot arguments to the global value command line */
261 R0 = R7; 263 R0 = R7;
262 call _cmdline_init; 264 call _cmdline_init;
263 265
@@ -350,7 +352,7 @@ ENTRY(_start_dma_code)
350 if ! CC jump .Lcheck_again; 352 if ! CC jump .Lcheck_again;
351 353
352 /* Configure SCLK & CCLK Dividers */ 354 /* Configure SCLK & CCLK Dividers */
353 r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); 355 r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV);
354 p0.h = hi(PLL_DIV); 356 p0.h = hi(PLL_DIV);
355 p0.l = lo(PLL_DIV); 357 p0.l = lo(PLL_DIV);
356 w[p0] = r0.l; 358 w[p0] = r0.l;