diff options
| author | Reinhard Meyer <u-boot@emk-elektronik.de> | 2010-12-01 05:49:53 +0100 |
|---|---|---|
| committer | Reinhard Meyer <u-boot@emk-elektronik.de> | 2010-12-07 16:36:40 +0100 |
| commit | accef43145a63535fa38714af469f22d912d6c64 (patch) | |
| tree | 522aa9cb316680bdea2882a4aa8cb2c2ed8345b5 | |
| parent | 2aed9d14cc167385c158f78a3d12b46fd226b499 (diff) | |
| download | u-boot-imx-accef43145a63535fa38714af469f22d912d6c64.zip u-boot-imx-accef43145a63535fa38714af469f22d912d6c64.tar.gz u-boot-imx-accef43145a63535fa38714af469f22d912d6c64.tar.bz2 | |
AT91: fix EMAC gpio init in at91sam9260_devices.c
The AT91SAM9G20 BOOT ROM apparently initializes PA23 and PA24 to multi drive
(open drain). Revert this, if those pins are going to be used for MII.
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c index f699f4d..c1822b7 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c @@ -204,6 +204,11 @@ void at91_macb_hw_init(void) #else at91_set_b_periph(AT91_PIO_PORTA, 23, 0); /* ETX2 */ at91_set_b_periph(AT91_PIO_PORTA, 24, 0); /* ETX3 */ +#if defined(CONFIG_AT91SAM9G20) + /* 9G20 BOOT ROM initializes those pins to multi-drive, undo that */ + at91_set_pio_multi_drive(AT91_PIO_PORTA, 23, 0); + at91_set_pio_multi_drive(AT91_PIO_PORTA, 24, 0); +#endif #endif at91_set_b_periph(AT91_PIO_PORTA, 22, 0); /* ETXER */ #endif |