diff options
Diffstat (limited to 'board/innokom/innokom.c')
| -rw-r--r-- | board/innokom/innokom.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/board/innokom/innokom.c b/board/innokom/innokom.c index 0176d9c..5ee5117 100644 --- a/board/innokom/innokom.c +++ b/board/innokom/innokom.c @@ -39,20 +39,28 @@ * The Innokom board has GPIO70 connected to SCLK which can be toggled * until all chips think that their current cycles are finished. */ -void i2c_init_board(void) +int i2c_init_board(void) { - int i; + int i, icr; - /* set gpio pin to output */ - GPDR(70) |= GPIO_bit(70); - for (i = 0; i < 11; i++) { + /* disable I2C controller first, otherwhise it thinks we want to */ + /* talk to the slave port... */ + icr = ICR; ICR &= ~(ICR_SCLE | ICR_IUE); + + /* set gpio pin low _before_ we change direction to output */ GPCR(70) = GPIO_bit(70); + + /* now toggle between output=low and high-impedance */ + for (i = 0; i < 20; i++) { + GPDR(70) |= GPIO_bit(70); /* output */ udelay(10); - GPSR(70) = GPIO_bit(70); + GPDR(70) &= ~GPIO_bit(70); /* input */ udelay(10); } - /* set gpio pin to input */ - GPDR(70) &= ~GPIO_bit(70); + + ICR = icr; + + return 0; } @@ -98,6 +106,9 @@ int board_init (void) /* adress of boot parameters */ gd->bd->bi_boot_params = 0xa0000100; + /* baud rate */ + gd->bd->bi_baudrate = CONFIG_BAUDRATE; + return 0; } |