From a04eba99f5a00aff54bef32cafa986830b094532 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sat, 5 Nov 2011 04:46:51 +0000 Subject: tegra2: Plumb in SPI/UART switch code On Seaboard the UART and SPI interfere with each other. This causes the UART to receive spurious zero bytes after SPI transactions and also means that SPI can corrupt a few output characters when it starts up if they are still in the UART buffer. This updates the board to use the SPI/UART switch to avoid the problem. For now this feature is turned off since it needs changes to the NS16550 UART to operate. Signed-off-by: Simon Glass Signed-off-by: Tom Warren --- board/nvidia/seaboard/seaboard.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'board/nvidia/seaboard') diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c index 7f2827b8be..0b779f6e9e 100644 --- a/board/nvidia/seaboard/seaboard.c +++ b/board/nvidia/seaboard/seaboard.c @@ -31,6 +31,8 @@ #endif #include "../common/board.h" +/* TODO: Remove this code when the SPI switch is working */ +#ifndef CONFIG_SPI_UART_SWITCH /* * Routine: gpio_config_uart_seaboard * Description: Force GPIO_PI3 low on Seaboard so UART4 works. @@ -48,6 +50,7 @@ void gpio_config_uart(void) return; gpio_config_uart_seaboard(); } +#endif #ifdef CONFIG_TEGRA2_MMC /* -- cgit v1.2.1