at91rm9200: Reset update

Update the rm9200 reset sequence to try executing a board-specific reset
function and move specific board reset to board.
Signed-off-by: default avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
parent 3524049c
......@@ -54,6 +54,16 @@ int board_init (void)
return 0;
}
void board_reset (void)
{
AT91PS_PIO pio = AT91C_BASE_PIOA;
/* Clear PA19 to trigger the hard reset */
writel(0x00080000, pio->PIO_CODR);
writel(0x00080000, pio->PIO_OER);
writel(0x00080000, pio->PIO_PER);
}
int dram_init (void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM;
......
......@@ -45,6 +45,8 @@ AT91PS_TC tmr;
static ulong timestamp;
static ulong lastinc;
void board_reset(void) __attribute__((__weak__));
int interrupt_init (void)
{
tmr = AT91C_BASE_TC0;
......@@ -166,21 +168,13 @@ ulong get_tbclk (void)
void reset_cpu (ulong ignored)
{
#ifdef CONFIG_AT91RM9200DK
AT91PS_PIO pio = AT91C_BASE_PIOA;
#endif
#if defined(CONFIG_AT91RM9200_USART)
/*shutdown the console to avoid strange chars during reset */
serial_exit();
#endif
#ifdef CONFIG_AT91RM9200DK
/* Clear PA19 to trigger the hard reset */
pio->PIO_CODR = 0x00080000;
pio->PIO_OER = 0x00080000;
pio->PIO_PER = 0x00080000;
#endif
if (board_reset)
board_reset();
/* this is the way Linux does it */
......
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