diff options
Diffstat (limited to 'board/innokom')
| -rw-r--r-- | board/innokom/flash.c | 3 | ||||
| -rw-r--r-- | board/innokom/innokom.c | 27 |
2 files changed, 22 insertions, 8 deletions
diff --git a/board/innokom/flash.c b/board/innokom/flash.c index b56707d..32c57d8 100644 --- a/board/innokom/flash.c +++ b/board/innokom/flash.c @@ -9,6 +9,9 @@ * (C) Copyright 2002 * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de> * + * (C) Copyright 2002 + * Kai-Uwe Bloem, GDS, <kai-uwe.bloem@auerswald.de> + * * See file CREDITS for list of people who contributed to this * project. * 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; } |