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Commit 05aa7882 authored by Rafael Ignacio Zurita's avatar Rafael Ignacio Zurita Committed by Paul Mundt
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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: default avatarRafael Ignacio Zurita <rizurita@yahoo.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent fdeb076f

arch/sh/Kconfig.debug

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/sh/kernel/early_printk.c

+2 −4
Original line number Diff line number Diff line
@@ -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