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author | John Crispin <john@openwrt.org> | 2013-04-03 09:58:44 +0000 |
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committer | John Crispin <john@openwrt.org> | 2013-04-03 09:58:44 +0000 |
commit | d4db00205d726f9faca3147cb345518ec5406aab (patch) | |
tree | 2e4466b8176c978c765dfeac1ea5f6ab5a0a203a /target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c | |
parent | 86a691144b4988d2ebfb78834b608dec51b53a33 (diff) | |
download | upstream-d4db00205d726f9faca3147cb345518ec5406aab.tar.gz upstream-d4db00205d726f9faca3147cb345518ec5406aab.tar.bz2 upstream-d4db00205d726f9faca3147cb345518ec5406aab.zip |
move files to files-3.7
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 36161
Diffstat (limited to 'target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c')
-rw-r--r-- | target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c b/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c new file mode 100644 index 0000000000..602df863ef --- /dev/null +++ b/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/early_printk.c @@ -0,0 +1,29 @@ +/* + * Ralink RT305x SoC early printk support + * + * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/io.h> +#include <linux/serial_reg.h> + +#include <asm/addrspace.h> + +#include <asm/mach-ralink/rt305x_regs.h> + +#define UART_READ(r) \ + __raw_readl((void __iomem *)(KSEG1ADDR(RT305X_UART1_BASE) + 4 * (r))) + +#define UART_WRITE(r, v) \ + __raw_writel((v), (void __iomem *)(KSEG1ADDR(RT305X_UART1_BASE) + 4 * (r))) + +void prom_putchar(unsigned char ch) +{ + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); + UART_WRITE(UART_REG_TX, ch); + while (((UART_READ(UART_REG_LSR)) & UART_LSR_THRE) == 0); +} |