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30 lines
638 B
30 lines
638 B
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2008 Maxime Bizon <[email protected]> |
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*/ |
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#include <bcm63xx_io.h> |
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#include <linux/serial_bcm63xx.h> |
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#include <asm/setup.h> |
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static void wait_xfered(void) |
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{ |
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unsigned int val; |
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/* wait for any previous char to be transmitted */ |
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do { |
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val = bcm_uart0_readl(UART_IR_REG); |
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if (val & UART_IR_STAT(UART_IR_TXEMPTY)) |
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break; |
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} while (1); |
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} |
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void prom_putchar(char c) |
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{ |
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wait_xfered(); |
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bcm_uart0_writel(c, UART_FIFO_REG); |
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wait_xfered(); |
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}
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