diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-02-19 08:58:12 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-03-04 15:24:32 +0100 |
| commit | 65ba20e17bd91e4b92e34b495f64a51a0313f6a9 (patch) | |
| tree | 4365d0fcd3548c03d5895df7b4114e77c6d5d1dd /src/cpu/allwinner/a10/uart_console.c | |
| parent | c5332e30da4c314c1d44d6d3f9df6d2ae6417e0f (diff) | |
allwinner/a10: Fix baudrate calculation
UART input clock is platform dependent. Also account for possible
use of get_option() where baudrate is not compile-time constant.
Change-Id: Ie1c8789ef72430e43fc33bfa9ffb9f5346762439
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5289
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/cpu/allwinner/a10/uart_console.c')
| -rw-r--r-- | src/cpu/allwinner/a10/uart_console.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/src/cpu/allwinner/a10/uart_console.c b/src/cpu/allwinner/a10/uart_console.c index 58930ddd66..f7bd3c6dc6 100644 --- a/src/cpu/allwinner/a10/uart_console.c +++ b/src/cpu/allwinner/a10/uart_console.c @@ -38,29 +38,19 @@ static void *get_console_uart_base_addr(void) return (void *)A1X_UART0_BASE; } -static u32 get_console_uart_baud(void) +/* FIXME: We assume clock is 24MHz, which may not be the case. */ +unsigned int uart_platform_refclk(void) { - if (CONFIG_CONSOLE_SERIAL_115200) - return 115200; - else if (CONFIG_CONSOLE_SERIAL_57600) - return 57600; - else if (CONFIG_CONSOLE_SERIAL_38400) - return 34800; - else if (CONFIG_CONSOLE_SERIAL_19200) - return 19200; - else if (CONFIG_CONSOLE_SERIAL_9600) - return 9600; - - /* Default to 115200 if selection is invalid */ - return 115200; + return 24000000; } static void a10_uart_init_dev(void) { void *uart_base = get_console_uart_base_addr(); + /* Use default 8N1 encoding */ - a10_uart_configure(uart_base, get_console_uart_baud(), - 8, UART_PARITY_NONE, 1); + a10_uart_configure(uart_base, default_baudrate(), + 8, UART_PARITY_NONE, 1); a10_uart_enable_fifos(uart_base); } |