diff options
author | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-11-26 18:41:01 +0000 |
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committer | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-11-26 18:41:01 +0000 |
commit | aedeeb1874e872189927c3c73cc039a2eb250586 (patch) | |
tree | 6fde2e69d2148e574198abd03d835771086266a3 /target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c | |
parent | e65685b4adca261a3d31b01014723755aff10323 (diff) |
Flatten brcm63xx patches, should make our life easier to patch files now ;)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13368 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c')
-rw-r--r-- | target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c new file mode 100644 index 0000000000..bf353c937d --- /dev/null +++ b/target/linux/brcm63xx/files/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(); +} |