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MIPS: Cobalt: Move to 8250/16550 serial early printk driver

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Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/948/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yoichi Yuasa 2010-02-08 21:01:22 +09:00 committed by Ralf Baechle
parent 7cd93b8935
commit 8a8594a738
4 changed files with 4 additions and 21 deletions
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1
arch/mips/Kconfig
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@ -146,6 +146,7 @@ config MIPS_COBALT
select CSRC_R4K
select CEVT_GT641XX
select DMA_NONCOHERENT
select EARLY_PRINTK_8250 if EARLY_PRINTK
select HW_HAS_PCI
select I8253
select I8259

1
arch/mips/cobalt/Makefile
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@ -5,5 +5,4 @@
obj-y := buttons.o irq.o lcd.o led.o reset.o rtc.o serial.o setup.o time.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_EARLY_PRINTK) += console.o
obj-$(CONFIG_MTD_PHYSMAP) += mtd.o

20
arch/mips/cobalt/console.c
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@ -1,20 +0,0 @@
/*
* (C) P. Horton 2006
*/
#include <linux/io.h>
#include <linux/serial_reg.h>
#include <cobalt.h>
#define UART_BASE ((void __iomem *)CKSEG1ADDR(0x1c800000))
void prom_putchar(char c)
{
if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
return;
while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
;
writeb(c, UART_BASE + UART_TX);
}

3
arch/mips/cobalt/setup.c
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@ -17,6 +17,7 @@
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/setup.h>
#include <asm/gt64120.h>
#include <cobalt.h>
@ -112,6 +113,8 @@ void __init prom_init(void)
}
add_memory_region(0x0, memsz, BOOT_MEM_RAM);
setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
}
void __init prom_free_prom_memory(void)