diff options
| author | David S. Miller <davem@davemloft.net> | 2009-09-25 02:13:11 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-09-25 02:13:11 +0400 |
| commit | 8b3f6af86378d0a10ca2f1ded1da124aef13b62c (patch) | |
| tree | de6ca90295730343c495be8d98be8efa322140ef /arch/mips/bcm63xx/early_printk.c | |
| parent | 139d6065c83071d5f66cd013a274a43699f8e2c1 (diff) | |
| parent | 94e0fb086fc5663c38bbc0fe86d698be8314f82f (diff) | |
| download | linux-8b3f6af86378d0a10ca2f1ded1da124aef13b62c.tar.xz | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/cpc-usb/TODO
drivers/staging/cpc-usb/cpc-usb_drv.c
drivers/staging/cpc-usb/cpc.h
drivers/staging/cpc-usb/cpc_int.h
drivers/staging/cpc-usb/cpcusb.h
Diffstat (limited to 'arch/mips/bcm63xx/early_printk.c')
| -rw-r--r-- | arch/mips/bcm63xx/early_printk.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/early_printk.c b/arch/mips/bcm63xx/early_printk.c new file mode 100644 index 000000000000..bf353c937df2 --- /dev/null +++ b/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(); +} |