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sh: Add early printk support for SH770x CPUs. 

This adds early printk support for SH770x (tested on SH7709 based hp6xx).

Signed-off-by: Rafael Ignacio Zurita <rizurita@yahoo.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
hifive-unleashed-5.1
Rafael Ignacio Zurita 2009-08-04 14:38:08 +09:00 committed by Paul Mundt
parent fdeb076f20
commit 05aa788275
2 changed files with 3 additions and 4 deletions
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1
arch/sh/Kconfig.debug
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@ -43,6 +43,7 @@ config EARLY_SCIF_CONSOLE_PORT
default "0xfffe8000" if CPU_SUBTYPE_SH7203
default "0xfffe9800" if CPU_SUBTYPE_SH7206 || CPU_SUBTYPE_SH7263
default "0xffe80000" if CPU_SH4
default "0xa4000150" if CPU_SH3
default "0x00000000"
config EARLY_PRINTK

6
arch/sh/kernel/early_printk.c
View File

@ -134,7 +134,7 @@ static void scif_sercon_init(char *s)
sci_out(&scif_port, SCFCR, 0x0030); /* TTRG=b'11 */
sci_out(&scif_port, SCSCR, 0x0030); /* TE, RE */
}
#elif defined(CONFIG_CPU_SH4)
#elif defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SH3)
#define DEFAULT_BAUD 115200
/*
* Simple SCIF init, primarily aimed at SH7750 and other similar SH-4
@ -220,10 +220,8 @@ static int __init setup_early_printk(char *buf)
early_console = &scif_console;
#if !defined(CONFIG_SH_STANDARD_BIOS)
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721)
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_CPU_SH3)
scif_sercon_init(buf + 6);
#endif
#endif
}
#endif