diff options
author | Florian Fainelli <florian@openwrt.org> | 2008-11-26 18:41:01 +0000 |
---|---|---|
committer | Florian Fainelli <florian@openwrt.org> | 2008-11-26 18:41:01 +0000 |
commit | 1c77ec0587c585f53a7bb8b3979a0303a1527a66 (patch) | |
tree | db8aff070beeb2621ee6c857ee2de73e8a70dd5e /target/linux/brcm63xx/files/arch/mips/bcm63xx/early_printk.c | |
parent | bd060db789def791e6ae5efc2fbf4329f3d056d3 (diff) | |
download | mtk-20170518-1c77ec0587c585f53a7bb8b3979a0303a1527a66.zip mtk-20170518-1c77ec0587c585f53a7bb8b3979a0303a1527a66.tar.gz mtk-20170518-1c77ec0587c585f53a7bb8b3979a0303a1527a66.tar.bz2 |
Flatten brcm63xx patches, should make our life easier to patch files now ;)
SVN-Revision: 13368
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 0000000..bf353c9 --- /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(); +} |