* Some Cleanup.
* Patch by Richard Woodruff, 10 Jan 2005:
Update support for OMAP2420 (ARM11) and H4 board:
o clean up and add new types to H4 memory probe code.
o fix to work with internal boot.
o added PRCM config III operation.
o fix marginal flash timings.
o add revison ATAG usage.
o enable voltage scaling at power chip.
o fix compile error for i2c.
* Fix network problem (error when receiving multiple ARP packets)
diff --git a/cpu/arm1136/config.mk b/cpu/arm1136/config.mk
index 077514a..ca9dc25 100644
--- a/cpu/arm1136/config.mk
+++ b/cpu/arm1136/config.mk
@@ -22,4 +22,5 @@
#
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
-PLATFORM_CPPFLAGS += -mapcs-32 -march=armv6
+# Make ARMv5 to allow more compilers to work, even though its v6.
+PLATFORM_CPPFLAGS += -mapcs-32 -march=armv5
diff --git a/cpu/arm1136/start.S b/cpu/arm1136/start.S
index 8cacc16..27fcc89 100644
--- a/cpu/arm1136/start.S
+++ b/cpu/arm1136/start.S
@@ -113,6 +113,7 @@
#ifdef CONFIG_OMAP2420H4
/* Copy vectors to mask ROM indirect addr */
adr r0, _start /* r0 <- current position of code */
+ add r0, r0, #4 /* skip reset vector */
mov r2, #64 /* r2 <- size to copy */
add r2, r0, r2 /* r2 <- source end address */
mov r1, #SRAM_OFFSET0 /* build vect addr */
@@ -125,10 +126,8 @@
stmia r1!, {r3-r10} /* copy to target address [r1] */
cmp r0, r2 /* until source end address [r2] */
bne next /* loop until equal */
-#ifdef CONFIG_PARTIAL_SRAM
bl cpy_clk_code /* put dpll adjust code behind vectors */
#endif
-#endif
/* the mask ROM code should have PLL and others stable */
bl cpu_init_crit
@@ -199,20 +198,13 @@
bic r0, r0, #0x00002300 @ clear bits 13, 9:8 (--V- --RS)
bic r0, r0, #0x00000087 @ clear bits 7, 2:0 (B--- -CAM)
orr r0, r0, #0x00000002 @ set bit 2 (A) Align
-#ifndef CONFIG_ICACHE_OFF
orr r0, r0, #0x00001000 @ set bit 12 (I) I-Cache
-#endif
mcr p15, 0, r0, c1, c0, 0
/*
* Jump to board specific initialization... The Mask ROM will have already initialized
* basic memory. Go here to bump up clock rate and handle wake up conditions.
*/
- adr r0, _start /* r0 <- current position of code */
- ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
- cmp r0, r1 /* pass on info about skipping some init portions */
- moveq r0,#0x1 /* flag to skip prcm and sdrc setup */
- movne r0,#0x0
mov ip, lr /* persevere link reg across call */
bl platformsetup /* go setup pll,mux,memory */
mov lr, ip /* restore link */
@@ -405,7 +397,7 @@
.globl reset_cpu
reset_cpu:
ldr r1, rstctl /* get addr for global reset reg */
- mov r3, #0x3 /* full reset pll+mpu */
+ mov r3, #0x2 /* full reset pll+mpu */
str r3, [r1] /* force reset */
mov r0, r0
_loop_forever: