diff options
Diffstat (limited to 'arch/avr32/lib')
| -rw-r--r-- | arch/avr32/lib/Makefile | 3 | ||||
| -rw-r--r-- | arch/avr32/lib/board.c | 83 | ||||
| -rw-r--r-- | arch/avr32/lib/dram_init.c | 17 | ||||
| -rw-r--r-- | arch/avr32/lib/interrupts.c | 5 |
4 files changed, 37 insertions, 71 deletions
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile index bb45cbe..6750913 100644 --- a/arch/avr32/lib/Makefile +++ b/arch/avr32/lib/Makefile @@ -8,6 +8,9 @@ # obj-y += memset.o +ifndef CONFIG_SYS_GENERIC_BOARD obj-y += board.o +endif obj-$(CONFIG_CMD_BOOTM) += bootm.o obj-y += interrupts.o +obj-y += dram_init.o diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c index bf0997f..99aa96e 100644 --- a/arch/avr32/lib/board.c +++ b/arch/avr32/lib/board.c @@ -9,7 +9,6 @@ #include <stdio_dev.h> #include <version.h> #include <net.h> -#include <atmel_mci.h> #ifdef CONFIG_BITBANGMII #include <miiphy.h> @@ -30,6 +29,12 @@ DECLARE_GLOBAL_DATA_PTR; unsigned long monitor_flash_len; +__weak void dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_dram[0].size = gd->ram_size; +} + /* Weak aliases for optional board functions */ static int __do_nothing(void) { @@ -38,57 +43,6 @@ static int __do_nothing(void) int board_postclk_init(void) __attribute__((weak, alias("__do_nothing"))); int board_early_init_r(void) __attribute__((weak, alias("__do_nothing"))); -/* provide cpu_mmc_init, to overwrite provide board_mmc_init */ -int cpu_mmc_init(bd_t *bd) -{ - /* This calls the atmel_mci_init in gen_atmel_mci.c */ - return atmel_mci_init((void *)ATMEL_BASE_MMCI); -} - -#ifdef CONFIG_SYS_DMA_ALLOC_LEN -#include <asm/arch/cacheflush.h> -#include <asm/io.h> - -static unsigned long dma_alloc_start; -static unsigned long dma_alloc_end; -static unsigned long dma_alloc_brk; - -static void dma_alloc_init(void) -{ - unsigned long monitor_addr; - - monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off; - dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN; - dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN; - dma_alloc_brk = dma_alloc_start; - - printf("DMA: Using memory from 0x%08lx to 0x%08lx\n", - dma_alloc_start, dma_alloc_end); - - invalidate_dcache_range((unsigned long)cached(dma_alloc_start), - dma_alloc_end); -} - -void *dma_alloc_coherent(size_t len, unsigned long *handle) -{ - unsigned long paddr = dma_alloc_brk; - - if (dma_alloc_brk + len > dma_alloc_end) - return NULL; - - dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1) - & ~(CONFIG_SYS_DCACHE_LINESZ - 1)); - - *handle = paddr; - return uncached(paddr); -} -#else -static inline void dma_alloc_init(void) -{ - -} -#endif - static int init_baudrate(void) { gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); @@ -134,7 +88,6 @@ void board_init_f(ulong board_type) unsigned long monitor_len; unsigned long monitor_addr; unsigned long addr; - long sdram_size; /* Initialize the global data pointer */ memset(&gd_data, 0, sizeof(gd_data)); @@ -142,17 +95,17 @@ void board_init_f(ulong board_type) /* Perform initialization sequence */ board_early_init_f(); - cpu_init(); + arch_cpu_init(); board_postclk_init(); env_init(); init_baudrate(); serial_init(); console_init_f(); display_banner(); - sdram_size = initdram(board_type); + dram_init(); /* If we have no SDRAM, we can't go on */ - if (sdram_size <= 0) + if (gd->ram_size <= 0) panic("No working SDRAM available\n"); /* @@ -166,7 +119,7 @@ void board_init_f(ulong board_type) * - global data struct * - stack */ - addr = CONFIG_SYS_SDRAM_BASE + sdram_size; + addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; monitor_len = (char *)(&__bss_end) - _text; /* @@ -180,12 +133,6 @@ void board_init_f(ulong board_type) /* Reserve memory for malloc() */ addr -= CONFIG_SYS_MALLOC_LEN; -#ifdef CONFIG_SYS_DMA_ALLOC_LEN - /* Reserve DMA memory (must be cache aligned) */ - addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1); - addr -= CONFIG_SYS_DMA_ALLOC_LEN; -#endif - #ifdef CONFIG_LCD #ifdef CONFIG_FB_ADDR printf("LCD: Frame buffer allocated at preset 0x%08x\n", @@ -210,16 +157,11 @@ void board_init_f(ulong board_type) /* And finally, a new, bigger stack. */ new_sp = (unsigned long *)addr; - gd->arch.stack_end = addr; + gd->start_addr_sp = addr; *(--new_sp) = 0; *(--new_sp) = 0; - /* - * Initialize the board information struct with the - * information we have. - */ - bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; - bd->bi_dram[0].size = sdram_size; + dram_init_banksize(); memcpy(new_gd, gd, sizeof(gd_t)); @@ -264,7 +206,6 @@ void board_init_r(gd_t *new_gd, ulong dest_addr) /* The malloc area is right below the monitor image in RAM */ mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN); - dma_alloc_init(); enable_interrupts(); diff --git a/arch/avr32/lib/dram_init.c b/arch/avr32/lib/dram_init.c new file mode 100644 index 0000000..5078e77 --- /dev/null +++ b/arch/avr32/lib/dram_init.c @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2015 Andreas Bießmann <andreas.devel@googlemail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + /* check for the maximum amount of memory possible on AP7000 devices */ + gd->ram_size = get_ram_size( + (void *)CONFIG_SYS_SDRAM_BASE, + (256<<20)); + return 0; +} diff --git a/arch/avr32/lib/interrupts.c b/arch/avr32/lib/interrupts.c index bacb2d1..5f3a49e 100644 --- a/arch/avr32/lib/interrupts.c +++ b/arch/avr32/lib/interrupts.c @@ -7,6 +7,11 @@ #include <asm/sysreg.h> +int interrupt_init(void) +{ + return 0; +} + void enable_interrupts(void) { asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET)); |