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-rw-r--r--cpu/arm920t/at91rm9200/i2c.c14
-rw-r--r--cpu/arm920t/at91rm9200/lowlevel_init.S158
-rw-r--r--cpu/arm920t/config.mk1
-rw-r--r--cpu/arm920t/start.S9
4 files changed, 70 insertions, 112 deletions
diff --git a/cpu/arm920t/at91rm9200/i2c.c b/cpu/arm920t/at91rm9200/i2c.c
index b68c5dd8263..9fd72d3977b 100644
--- a/cpu/arm920t/at91rm9200/i2c.c
+++ b/cpu/arm920t/at91rm9200/i2c.c
@@ -189,20 +189,6 @@ i2c_init(int speed, int slaveaddr)
return;
}
-uchar i2c_reg_read(uchar i2c_addr, uchar reg)
-{
- unsigned char buf;
-
- i2c_read(i2c_addr, reg, 1, &buf, 1);
-
- return(buf);
-}
-
-void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
-{
- i2c_write(i2c_addr, reg, 1, &val, 1);
-}
-
int i2c_set_bus_speed(unsigned int speed)
{
return -1;
diff --git a/cpu/arm920t/at91rm9200/lowlevel_init.S b/cpu/arm920t/at91rm9200/lowlevel_init.S
index 66b07da08b6..0913284e793 100644
--- a/cpu/arm920t/at91rm9200/lowlevel_init.S
+++ b/cpu/arm920t/at91rm9200/lowlevel_init.S
@@ -38,33 +38,7 @@
* turn is based on the boot.bin code from ATMEL
*
*/
-
-/* flash */
-#define MC_PUIA 0xFFFFFF10
-#define MC_PUP 0xFFFFFF50
-#define MC_PUER 0xFFFFFF54
-#define MC_ASR 0xFFFFFF04
-#define MC_AASR 0xFFFFFF08
-#define EBI_CFGR 0xFFFFFF64
-#define SMC_CSR0 0xFFFFFF70
-
-/* clocks */
-#define PLLAR 0xFFFFFC28
-#define PLLBR 0xFFFFFC2C
-#define MCKR 0xFFFFFC30
-
-#define AT91C_BASE_CKGR 0xFFFFFC20
-#define CKGR_MOR 0
-
-/* sdram */
-#define PIOC_ASR 0xFFFFF870
-#define PIOC_BSR 0xFFFFF874
-#define PIOC_PDR 0xFFFFF804
-#define EBI_CSA 0xFFFFFF60
-#define SDRC_CR 0xFFFFFF98
-#define SDRC_MR 0xFFFFFF90
-#define SDRC_TR 0xFFFFFF94
-
+#include <asm/arch/AT91RM9200.h>
_MTEXT_BASE:
#undef START_FROM_MEM
@@ -84,7 +58,7 @@ lowlevel_init:
#else
ldr r0, =0x0000FF00 /* Disable main oscillator, OSCOUNT = 0xFF */
#endif
- str r0, [r1, #CKGR_MOR]
+ str r0, [r1, #AT91C_CKGR_MOR]
/* Add loop to compensate Main Oscillator startup time */
ldr r0, =0x00000010
LoopOsc:
@@ -134,72 +108,72 @@ LoopOsc:
.ltorg
SMRDATA:
- .word MC_PUIA
- .word MC_PUIA_VAL
- .word MC_PUP
- .word MC_PUP_VAL
- .word MC_PUER
- .word MC_PUER_VAL
- .word MC_ASR
- .word MC_ASR_VAL
- .word MC_AASR
- .word MC_AASR_VAL
- .word EBI_CFGR
- .word EBI_CFGR_VAL
- .word SMC_CSR0
- .word SMC_CSR0_VAL
- .word PLLAR
- .word PLLAR_VAL
- .word PLLBR
- .word PLLBR_VAL
- .word MCKR
- .word MCKR_VAL
+ .word AT91C_MC_PUIA
+ .word CONFIG_SYS_MC_PUIA_VAL
+ .word AT91C_MC_PUP
+ .word CONFIG_SYS_MC_PUP_VAL
+ .word AT91C_MC_PUER
+ .word CONFIG_SYS_MC_PUER_VAL
+ .word AT91C_MC_ASR
+ .word CONFIG_SYS_MC_ASR_VAL
+ .word AT91C_MC_AASR
+ .word CONFIG_SYS_MC_AASR_VAL
+ .word AT91C_EBI_CFGR
+ .word CONFIG_SYS_EBI_CFGR_VAL
+ .word AT91C_SMC_CSR0
+ .word CONFIG_SYS_SMC_CSR0_VAL
+ .word AT91C_PLLAR
+ .word CONFIG_SYS_PLLAR_VAL
+ .word AT91C_PLLBR
+ .word CONFIG_SYS_PLLBR_VAL
+ .word AT91C_MCKR
+ .word CONFIG_SYS_MCKR_VAL
/* SMRDATA is 80 bytes long */
/* here there's a delay of 100 */
SMRDATA1:
- .word PIOC_ASR
- .word PIOC_ASR_VAL
- .word PIOC_BSR
- .word PIOC_BSR_VAL
- .word PIOC_PDR
- .word PIOC_PDR_VAL
- .word EBI_CSA
- .word EBI_CSA_VAL
- .word SDRC_CR
- .word SDRC_CR_VAL
- .word SDRC_MR
- .word SDRC_MR_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRC_MR
- .word SDRC_MR_VAL1
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRC_MR
- .word SDRC_MR_VAL2
- .word SDRAM1
- .word SDRAM_VAL
- .word SDRC_TR
- .word SDRC_TR_VAL
- .word SDRAM
- .word SDRAM_VAL
- .word SDRC_MR
- .word SDRC_MR_VAL3
- .word SDRAM
- .word SDRAM_VAL
+ .word AT91C_PIOC_ASR
+ .word CONFIG_SYS_PIOC_ASR_VAL
+ .word AT91C_PIOC_BSR
+ .word CONFIG_SYS_PIOC_BSR_VAL
+ .word AT91C_PIOC_PDR
+ .word CONFIG_SYS_PIOC_PDR_VAL
+ .word AT91C_EBI_CSA
+ .word CONFIG_SYS_EBI_CSA_VAL
+ .word AT91C_SDRC_CR
+ .word CONFIG_SYS_SDRC_CR_VAL
+ .word AT91C_SDRC_MR
+ .word CONFIG_SYS_SDRC_MR_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word AT91C_SDRC_MR
+ .word CONFIG_SYS_SDRC_MR_VAL1
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word AT91C_SDRC_MR
+ .word CONFIG_SYS_SDRC_MR_VAL2
+ .word CONFIG_SYS_SDRAM1
+ .word CONFIG_SYS_SDRAM_VAL
+ .word AT91C_SDRC_TR
+ .word CONFIG_SYS_SDRC_TR_VAL
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
+ .word AT91C_SDRC_MR
+ .word CONFIG_SYS_SDRC_MR_VAL3
+ .word CONFIG_SYS_SDRAM
+ .word CONFIG_SYS_SDRAM_VAL
/* SMRDATA1 is 176 bytes long */
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
diff --git a/cpu/arm920t/config.mk b/cpu/arm920t/config.mk
index 8db4adbe179..38718a35221 100644
--- a/cpu/arm920t/config.mk
+++ b/cpu/arm920t/config.mk
@@ -31,4 +31,5 @@ PLATFORM_CPPFLAGS += -march=armv4
#
# =========================================================================
PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)
+PLATFORM_CPPFLAGS +=$(call cc-option,-mno-thumb-interwork,)
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
diff --git a/cpu/arm920t/start.S b/cpu/arm920t/start.S
index 17977c26b1e..fbcfe6dbc39 100644
--- a/cpu/arm920t/start.S
+++ b/cpu/arm920t/start.S
@@ -24,7 +24,6 @@
* MA 02111-1307 USA
*/
-
#include <config.h>
#include <version.h>
#include <status_led.h>
@@ -119,7 +118,7 @@ start_code:
bl coloured_LED_init
bl red_LED_on
-#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
+#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK)
/*
* relocate exception table
*/
@@ -178,8 +177,6 @@ copyex:
bl cpu_init_crit
#endif
-#ifndef CONFIG_AT91RM9200
-
#ifndef CONFIG_SKIP_RELOCATE_UBOOT
relocate: /* relocate U-Boot to RAM */
adr r0, _start /* r0 <- current position of code */
@@ -198,7 +195,7 @@ copy_loop:
cmp r0, r2 /* until source end addreee [r2] */
ble copy_loop
#endif /* CONFIG_SKIP_RELOCATE_UBOOT */
-#endif
+
/* Set up the stack */
stack_setup:
ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */
@@ -261,7 +258,7 @@ cpu_init_crit:
* find a lowlevel_init.S in your board directory.
*/
mov ip, lr
-#if defined(CONFIG_AT91RM9200DK) || defined(CONFIG_AT91RM9200EK) || defined(CONFIG_AT91RM9200DF)
+#if defined(CONFIG_AT91RM9200EK)
#else
bl lowlevel_init
generated by cgit v1.2.3 (git 2.0.4) at 2024-09-18 02:13:47 +0000