diff options
Diffstat (limited to 'board/atmel/atstk1000')
| -rw-r--r-- | board/atmel/atstk1000/atstk1000.c | 3 | ||||
| -rw-r--r-- | board/atmel/atstk1000/flash.c | 31 |
2 files changed, 25 insertions, 9 deletions
diff --git a/board/atmel/atstk1000/atstk1000.c b/board/atmel/atstk1000/atstk1000.c index 6618963..28f64c4 100644 --- a/board/atmel/atstk1000/atstk1000.c +++ b/board/atmel/atstk1000/atstk1000.c @@ -23,6 +23,7 @@ #include <asm/io.h> #include <asm/sdram.h> +#include <asm/arch/clk.h> #include <asm/arch/gpio.h> #include <asm/arch/hmatrix2.h> @@ -40,6 +41,8 @@ static const struct sdram_info sdram = { .trcd = 2, .tras = 5, .txsr = 5, + /* 15.6 us */ + .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000, }; int board_early_init_f(void) diff --git a/board/atmel/atstk1000/flash.c b/board/atmel/atstk1000/flash.c index 93d790f..4047825 100644 --- a/board/atmel/atstk1000/flash.c +++ b/board/atmel/atstk1000/flash.c @@ -159,7 +159,7 @@ int __flashprog write_buff(flash_info_t *info, uchar *src, { unsigned long flags; uint16_t *base, *p, *s, *end; - uint16_t word, status; + uint16_t word, status, status1; int ret = ERR_OK; if (addr < info->start[0] @@ -194,20 +194,33 @@ int __flashprog write_buff(flash_info_t *info, uchar *src, sync_write_buffer(); /* Wait for completion */ + status1 = readw(p); do { /* TODO: Timeout */ - status = readw(p); - } while ((status != word) && !(status & 0x28)); + status = status1; + status1 = readw(p); + } while (((status ^ status1) & 0x40) /* toggled */ + && !(status1 & 0x28)); /* error bits */ - writew(0xf0, base); - readw(base); - - if (status != word) { - printf("Flash write error at address 0x%p: 0x%02x\n", - p, status); + /* + * We'll need to check once again for toggle bit + * because the toggle bit may stop toggling as I/O5 + * changes to "1" (ref at49bv642.pdf p9) + */ + status1 = readw(p); + status = readw(p); + if ((status ^ status1) & 0x40) { + printf("Flash write error at address 0x%p: " + "0x%02x != 0x%02x\n", + p, status,word); ret = ERR_PROG_ERROR; + writew(0xf0, base); + readw(base); break; } + + writew(0xf0, base); + readw(base); } if (flags) |