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@ -9,7 +9,6 @@ |
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#include <stdio_dev.h> |
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#include <version.h> |
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#include <net.h> |
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#include <atmel_mci.h> |
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#ifdef CONFIG_BITBANGMII |
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#include <miiphy.h> |
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@ -30,6 +29,12 @@ DECLARE_GLOBAL_DATA_PTR; |
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unsigned long monitor_flash_len; |
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__weak void dram_init_banksize(void) |
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{ |
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gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; |
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gd->bd->bi_dram[0].size = gd->ram_size; |
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} |
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/* Weak aliases for optional board functions */ |
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static int __do_nothing(void) |
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{ |
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@ -38,57 +43,6 @@ static int __do_nothing(void) |
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int board_postclk_init(void) __attribute__((weak, alias("__do_nothing"))); |
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int board_early_init_r(void) __attribute__((weak, alias("__do_nothing"))); |
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/* provide cpu_mmc_init, to overwrite provide board_mmc_init */ |
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int cpu_mmc_init(bd_t *bd) |
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{ |
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/* This calls the atmel_mci_init in gen_atmel_mci.c */ |
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return atmel_mci_init((void *)ATMEL_BASE_MMCI); |
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} |
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#ifdef CONFIG_SYS_DMA_ALLOC_LEN |
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#include <asm/arch/cacheflush.h> |
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#include <asm/io.h> |
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static unsigned long dma_alloc_start; |
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static unsigned long dma_alloc_end; |
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static unsigned long dma_alloc_brk; |
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static void dma_alloc_init(void) |
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{ |
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unsigned long monitor_addr; |
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monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off; |
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dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN; |
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dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN; |
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dma_alloc_brk = dma_alloc_start; |
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printf("DMA: Using memory from 0x%08lx to 0x%08lx\n", |
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dma_alloc_start, dma_alloc_end); |
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invalidate_dcache_range((unsigned long)cached(dma_alloc_start), |
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dma_alloc_end); |
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} |
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void *dma_alloc_coherent(size_t len, unsigned long *handle) |
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{ |
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unsigned long paddr = dma_alloc_brk; |
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if (dma_alloc_brk + len > dma_alloc_end) |
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return NULL; |
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dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1) |
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& ~(CONFIG_SYS_DCACHE_LINESZ - 1)); |
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*handle = paddr; |
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return uncached(paddr); |
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} |
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#else |
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static inline void dma_alloc_init(void) |
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{ |
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} |
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#endif |
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static int init_baudrate(void) |
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{ |
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gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); |
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@ -134,7 +88,6 @@ void board_init_f(ulong board_type) |
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unsigned long monitor_len; |
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unsigned long monitor_addr; |
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unsigned long addr; |
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long sdram_size; |
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/* Initialize the global data pointer */ |
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memset(&gd_data, 0, sizeof(gd_data)); |
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@ -142,17 +95,17 @@ void board_init_f(ulong board_type) |
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/* Perform initialization sequence */ |
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board_early_init_f(); |
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cpu_init(); |
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arch_cpu_init(); |
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board_postclk_init(); |
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env_init(); |
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init_baudrate(); |
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serial_init(); |
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console_init_f(); |
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display_banner(); |
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sdram_size = initdram(board_type); |
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dram_init(); |
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/* If we have no SDRAM, we can't go on */ |
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if (sdram_size <= 0) |
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if (gd->ram_size <= 0) |
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panic("No working SDRAM available\n"); |
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/*
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@ -166,7 +119,7 @@ void board_init_f(ulong board_type) |
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* - global data struct |
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* - stack |
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*/ |
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addr = CONFIG_SYS_SDRAM_BASE + sdram_size; |
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addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; |
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monitor_len = (char *)(&__bss_end) - _text; |
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/*
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@ -180,12 +133,6 @@ void board_init_f(ulong board_type) |
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/* Reserve memory for malloc() */ |
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addr -= CONFIG_SYS_MALLOC_LEN; |
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#ifdef CONFIG_SYS_DMA_ALLOC_LEN |
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/* Reserve DMA memory (must be cache aligned) */ |
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addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1); |
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addr -= CONFIG_SYS_DMA_ALLOC_LEN; |
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#endif |
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#ifdef CONFIG_LCD |
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#ifdef CONFIG_FB_ADDR |
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printf("LCD: Frame buffer allocated at preset 0x%08x\n", |
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@ -210,16 +157,11 @@ void board_init_f(ulong board_type) |
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/* And finally, a new, bigger stack. */ |
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new_sp = (unsigned long *)addr; |
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gd->arch.stack_end = addr; |
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gd->start_addr_sp = addr; |
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*(--new_sp) = 0; |
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*(--new_sp) = 0; |
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/*
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* Initialize the board information struct with the |
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* information we have. |
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*/ |
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bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; |
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bd->bi_dram[0].size = sdram_size; |
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dram_init_banksize(); |
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memcpy(new_gd, gd, sizeof(gd_t)); |
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@ -264,7 +206,6 @@ void board_init_r(gd_t *new_gd, ulong dest_addr) |
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/* The malloc area is right below the monitor image in RAM */ |
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mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - |
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CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN); |
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dma_alloc_init(); |
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enable_interrupts(); |
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Tom Rini
9 years ago