On 12/30/2015 03:27 AM, Daniel Schwierzeck wrote:
diff --git a/include/configs/ap121.h b/include/configs/ap121.h new file mode 100644 index 0000000..21fb04e --- /dev/null +++ b/include/configs/ap121.h @@ -0,0 +1,86 @@ +#ifndef __CONFIG_H +#define __CONFIG_H
+#include <linux/sizes.h>
+#define CONFIG_SYS_TEXT_BASE 0x9f000000
+#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_DISPLAY_BOARDINFO +#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_SYS_HZ 1000 +#define CONFIG_SYS_MHZ 200 +#define CONFIG_SYS_MIPS_TIMER_FREQ (CONFIG_SYS_MHZ * 1000000)
+/* Cache Configuration */ +#define CONFIG_SYS_DCACHE_SIZE SZ_32K +#define CONFIG_SYS_ICACHE_SIZE SZ_64K +#define CONFIG_SYS_CACHELINE_SIZE 32 you wrote that without these values, your board will not boot. But it should on a MIPS 24Kc core. The kernel also works with auto-detected values. Please try again with this patch series. I would like to remove the cache code in the future, that depends on manually configured sizes.
I try it again, my board still don't work if remove these three lines.
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MALLOC_LEN SZ_256K +#define CONFIG_SYS_BOOTPARAMS_LEN SZ_128K
please use hexadecimal numbers instead of SZ_* macros. All those options are eventually converted to Kconfig symbols of type hex.
Ok.
+#define CONFIG_SYS_SDRAM_BASE 0x80000000 +#define CONFIG_SYS_LOAD_ADDR 0x81000000
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_INIT_RAM_ADDR 0xbd000000 +#define CONFIG_SYS_INIT_RAM_SIZE SZ_32K
+#define CONFIG_SYS_INIT_SP_OFFSET \
- (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
- (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
you only need
#define CONFIG_SYS_INIT_SP_ADDR \ (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE - 1)
The space for global_data is automatically reserved in start.S above the stack pointer
Ok.