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Diffstat (limited to 'arch/sh/kernel/early_printk.c')
-rw-r--r--arch/sh/kernel/early_printk.c44
1 files changed, 21 insertions, 23 deletions
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c
index a00022722e9e..60340823798a 100644
--- a/arch/sh/kernel/early_printk.c
+++ b/arch/sh/kernel/early_printk.c
@@ -12,7 +12,7 @@
12#include <linux/console.h> 12#include <linux/console.h>
13#include <linux/tty.h> 13#include <linux/tty.h>
14#include <linux/init.h> 14#include <linux/init.h>
15#include <asm/io.h> 15#include <linux/io.h>
16 16
17#ifdef CONFIG_SH_STANDARD_BIOS 17#ifdef CONFIG_SH_STANDARD_BIOS
18#include <asm/sh_bios.h> 18#include <asm/sh_bios.h>
@@ -62,17 +62,9 @@ static struct console bios_console = {
62#include <linux/serial_core.h> 62#include <linux/serial_core.h>
63#include "../../../drivers/serial/sh-sci.h" 63#include "../../../drivers/serial/sh-sci.h"
64 64
65#ifdef CONFIG_CPU_SH4
66#define SCIF_REG 0xffe80000
67#elif defined(CONFIG_CPU_SUBTYPE_SH72060)
68#define SCIF_REG 0xfffe9800
69#else
70#error "Undefined SCIF for this subtype"
71#endif
72
73static struct uart_port scif_port = { 65static struct uart_port scif_port = {
74 .mapbase = SCIF_REG, 66 .mapbase = CONFIG_EARLY_SCIF_CONSOLE_PORT,
75 .membase = (char __iomem *)SCIF_REG, 67 .membase = (char __iomem *)CONFIG_EARLY_SCIF_CONSOLE_PORT,
76}; 68};
77 69
78static void scif_sercon_putc(int c) 70static void scif_sercon_putc(int c)
@@ -113,23 +105,29 @@ static struct console scif_console = {
113 .index = -1, 105 .index = -1,
114}; 106};
115 107
108#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_STANDARD_BIOS)
109/*
110 * Simple SCIF init, primarily aimed at SH7750 and other similar SH-4
111 * devices that aren't using sh-ipl+g.
112 */
116static void scif_sercon_init(int baud) 113static void scif_sercon_init(int baud)
117{ 114{
118 ctrl_outw(0, SCIF_REG + 8); 115 ctrl_outw(0, scif_port.mapbase + 8);
119 ctrl_outw(0, SCIF_REG); 116 ctrl_outw(0, scif_port.mapbase);
120 117
121 /* Set baud rate */ 118 /* Set baud rate */
122 ctrl_outb((CONFIG_SH_PCLK_FREQ + 16 * baud) / 119 ctrl_outb((CONFIG_SH_PCLK_FREQ + 16 * baud) /
123 (32 * baud) - 1, SCIF_REG + 4); 120 (32 * baud) - 1, scif_port.mapbase + 4);
124 121
125 ctrl_outw(12, SCIF_REG + 24); 122 ctrl_outw(12, scif_port.mapbase + 24);
126 ctrl_outw(8, SCIF_REG + 24); 123 ctrl_outw(8, scif_port.mapbase + 24);
127 ctrl_outw(0, SCIF_REG + 32); 124 ctrl_outw(0, scif_port.mapbase + 32);
128 ctrl_outw(0x60, SCIF_REG + 16); 125 ctrl_outw(0x60, scif_port.mapbase + 16);
129 ctrl_outw(0, SCIF_REG + 36); 126 ctrl_outw(0, scif_port.mapbase + 36);
130 ctrl_outw(0x30, SCIF_REG + 8); 127 ctrl_outw(0x30, scif_port.mapbase + 8);
131} 128}
132#endif 129#endif /* CONFIG_CPU_SH4 && !CONFIG_SH_STANDARD_BIOS */
130#endif /* CONFIG_EARLY_SCIF_CONSOLE */
133 131
134/* 132/*
135 * Setup a default console, if more than one is compiled in, rely on the 133 * Setup a default console, if more than one is compiled in, rely on the
@@ -168,7 +166,7 @@ int __init setup_early_printk(char *opt)
168 if (!strncmp(buf, "serial", 6)) { 166 if (!strncmp(buf, "serial", 6)) {
169 early_console = &scif_console; 167 early_console = &scif_console;
170 168
171#ifdef CONFIG_CPU_SH4 169#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_STANDARD_BIOS)
172 scif_sercon_init(115200); 170 scif_sercon_init(115200);
173#endif 171#endif
174 } 172 }