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| author | Florian Fainelli <florian@openwrt.org> | 2010-01-31 21:00:50 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2010-01-31 21:00:50 +0000 |
| commit | b8d99458ffe83a3c782e26e0cd07d26d41bfeefc (patch) | |
| tree | 7aed13aaf7a1311c8c63979af5d23c6c13049bfd /target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c | |
| parent | a8f779a9f7a9f12bd2f4b863a131e8d2a605109c (diff) | |
| download | mtk-20170518-b8d99458ffe83a3c782e26e0cd07d26d41bfeefc.zip mtk-20170518-b8d99458ffe83a3c782e26e0cd07d26d41bfeefc.tar.gz mtk-20170518-b8d99458ffe83a3c782e26e0cd07d26d41bfeefc.tar.bz2 | |
move files to files-2.6.30, to ease newer kernel integration
SVN-Revision: 19471
Diffstat (limited to 'target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c')
| -rw-r--r-- | target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c b/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c new file mode 100644 index 0000000..bf353c9 --- /dev/null +++ b/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/early_printk.c @@ -0,0 +1,30 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> + */ + +#include <linux/init.h> +#include <bcm63xx_io.h> +#include <bcm63xx_regs.h> + +static void __init wait_xfered(void) +{ + unsigned int val; + + /* wait for any previous char to be transmitted */ + do { + val = bcm_uart0_readl(UART_IR_REG); + if (val & UART_IR_STAT(UART_IR_TXEMPTY)) + break; + } while (1); +} + +void __init prom_putchar(char c) +{ + wait_xfered(); + bcm_uart0_writel(c, UART_FIFO_REG); + wait_xfered(); +} |