0567c91b22
UARTs now have unified prototypes and can use a single entry in the list of drivers for ramstage. Change-Id: I315daaf9a83cfa60f1a270146c729907a1d6d45b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5308 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/*
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* Glue to UART code to enable serial console
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*
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* Copyright 2013 Google Inc.
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* Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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* Subject to the GNU GPL v2, or (at your option) any later version.
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*/
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#include <config.h>
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#include <types.h>
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#include <console/uart.h>
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#include <arch/io.h>
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#include <cpu/allwinner/a10/uart.h>
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static void *get_console_uart_base_addr(void)
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{
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/* This big block gets compiled to a constant, not a function call */
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if (CONFIG_CONSOLE_SERIAL_UART0)
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return (void *)A1X_UART0_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART1)
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return (void *)A1X_UART1_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART2)
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return (void *)A1X_UART2_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART3)
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return (void *)A1X_UART3_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART4)
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return (void *)A1X_UART4_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART5)
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return (void *)A1X_UART5_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART6)
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return (void *)A1X_UART6_BASE;
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else if (CONFIG_CONSOLE_SERIAL_UART7)
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return (void *)A1X_UART7_BASE;
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/* If selection is invalid, default to UART0 */
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return (void *)A1X_UART0_BASE;
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}
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/* FIXME: We assume clock is 24MHz, which may not be the case. */
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unsigned int uart_platform_refclk(void)
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{
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return 24000000;
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}
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void uart_init(void)
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{
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void *uart_base = get_console_uart_base_addr();
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/* Use default 8N1 encoding */
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a10_uart_configure(uart_base, default_baudrate(),
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8, UART_PARITY_NONE, 1);
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a10_uart_enable_fifos(uart_base);
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}
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unsigned char uart_rx_byte(void)
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{
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return a10_uart_rx_blocking(get_console_uart_base_addr());
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}
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void uart_tx_byte(unsigned char data)
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{
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a10_uart_tx_blocking(get_console_uart_base_addr(), data);
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}
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#if !defined(__PRE_RAM__)
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uint32_t uartmem_getbaseaddr(void)
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{
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return (uint32_t) get_console_uart_base_addr();
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}
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#endif
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void uart_tx_flush(void)
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{
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}
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