diff options
Diffstat (limited to 'arch/nios2')
| -rw-r--r-- | arch/nios2/config.mk | 2 | ||||
| -rw-r--r-- | arch/nios2/cpu/start.S | 9 | ||||
| -rw-r--r-- | arch/nios2/include/asm/byteorder.h | 6 | ||||
| -rw-r--r-- | arch/nios2/include/asm/dma-mapping.h | 23 | ||||
| -rw-r--r-- | arch/nios2/lib/board.c | 18 |
5 files changed, 52 insertions, 6 deletions
diff --git a/arch/nios2/config.mk b/arch/nios2/config.mk index f455982..8e5d6ef 100644 --- a/arch/nios2/config.mk +++ b/arch/nios2/config.mk @@ -29,4 +29,4 @@ STANDALONE_LOAD_ADDR = 0x02000000 -L $(gcclibdir) PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__ PLATFORM_CPPFLAGS += -ffixed-r15 -G0 -LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds +LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds diff --git a/arch/nios2/cpu/start.S b/arch/nios2/cpu/start.S index 31cd5b0..d1016ea 100644 --- a/arch/nios2/cpu/start.S +++ b/arch/nios2/cpu/start.S @@ -34,6 +34,7 @@ .global _start _start: + wrctl status, r0 /* Disable interrupts */ /* ICACHE INIT -- only the icache line at the reset address * is invalidated at reset. So the init must stay within * the cache line size (8 words). If GERMS is used, we'll @@ -43,10 +44,9 @@ _start: ori r4, r0, %lo(CONFIG_SYS_ICACHELINE_SIZE) movhi r5, %hi(CONFIG_SYS_ICACHE_SIZE) ori r5, r5, %lo(CONFIG_SYS_ICACHE_SIZE) - mov r6, r0 -0: initi r6 - add r6, r6, r4 - bltu r6, r5, 0b +0: initi r5 + sub r5, r5, r4 + bgt r5, r0, 0b br _except_end /* Skip the tramp */ /* EXCEPTION TRAMPOLINE -- the following gets copied @@ -62,7 +62,6 @@ _except_end: /* INTERRUPTS -- for now, all interrupts masked and globally * disabled. */ - wrctl status, r0 /* Disable interrupts */ wrctl ienable, r0 /* All disabled */ /* DCACHE INIT -- if dcache not implemented, initd behaves as diff --git a/arch/nios2/include/asm/byteorder.h b/arch/nios2/include/asm/byteorder.h index 495c823..d5c152e 100644 --- a/arch/nios2/include/asm/byteorder.h +++ b/arch/nios2/include/asm/byteorder.h @@ -25,6 +25,12 @@ #define __ASM_NIOS2_BYTEORDER_H_ #include <asm/types.h> + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + #include <linux/byteorder/little_endian.h> #endif /* __ASM_NIOS2_BYTEORDER_H_ */ diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h new file mode 100644 index 0000000..1350e3b --- /dev/null +++ b/arch/nios2/include/asm/dma-mapping.h @@ -0,0 +1,23 @@ +#ifndef __ASM_NIOS2_DMA_MAPPING_H +#define __ASM_NIOS2_DMA_MAPPING_H + +/* dma_alloc_coherent() return cache-line aligned allocation which is mapped + * to uncached io region. + * + * IO_REGION_BASE should be defined in board config header file + * 0x80000000 for nommu, 0xe0000000 for mmu + */ + +static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) +{ + void *addr = malloc(len + CONFIG_SYS_DCACHELINE_SIZE); + if (!addr) + return 0; + flush_dcache((unsigned long)addr, len + CONFIG_SYS_DCACHELINE_SIZE); + *handle = ((unsigned long)addr + + (CONFIG_SYS_DCACHELINE_SIZE - 1)) & + ~(CONFIG_SYS_DCACHELINE_SIZE - 1) & ~(IO_REGION_BASE); + return (void *)(*handle | IO_REGION_BASE); +} + +#endif /* __ASM_NIOS2_DMA_MAPPING_H */ diff --git a/arch/nios2/lib/board.c b/arch/nios2/lib/board.c index 8ec66a3..f83e691 100644 --- a/arch/nios2/lib/board.c +++ b/arch/nios2/lib/board.c @@ -28,6 +28,7 @@ #include <stdio_dev.h> #include <watchdog.h> #include <malloc.h> +#include <mmc.h> #include <net.h> #ifdef CONFIG_STATUS_LED #include <status_led.h> @@ -35,6 +36,9 @@ #if defined(CONFIG_SYS_NIOS_EPCSBASE) #include <nios2-epcs.h> #endif +#ifdef CONFIG_CMD_NAND +#include <nand.h> /* cannot even include nand.h if it isnt configured */ +#endif DECLARE_GLOBAL_DATA_PTR; @@ -100,7 +104,9 @@ void board_init (void) bd = gd->bd; bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; +#ifndef CONFIG_SYS_NO_FLASH bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; +#endif #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) bd->bi_sramstart= CONFIG_SYS_SRAM_BASE; bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; @@ -119,8 +125,20 @@ void board_init (void) /* The Malloc area is immediately below the monitor copy in RAM */ mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); +#ifndef CONFIG_SYS_NO_FLASH WATCHDOG_RESET (); bd->bi_flashsize = flash_init(); +#endif + +#ifdef CONFIG_CMD_NAND + puts("NAND: "); + nand_init(); +#endif + +#ifdef CONFIG_GENERIC_MMC + puts("MMC: "); + mmc_initialize(bd); +#endif WATCHDOG_RESET (); env_relocate(); |