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Commit 2cd97647 authored by David Gibson's avatar David Gibson Committed by Paul Mackerras
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[POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now 



This prepares for Ebony/440 support by creating an
arch/powerpc/platforms/44x directory.  It is populated with a single
misc_44x.S file, into which is moved the 44x specific reset code from
head_44x.S (on the grounds that we should really stop clogging up the
head_* files with random asm helper routines).

At the same time, we disable the (empty save Kconfig and Makefile)
arch/powerpc/platforms/4xx directory from the arch/powerpc/platforms
Makefile.  Contrary to the comment in
arch/powerpc/platforms/4xx/Makefile, attempting to build such an empty
Makefile will fail, thus breaking compile for the 44x platforms we're
about to add.  It can go back in once we start porting some of the 40x
platforms (and thus it becomes non-empty).

Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 05af7bd2

arch/powerpc/kernel/head_44x.S

+0 −10
Original line number Diff line number Diff line
@@ -709,16 +709,6 @@ _GLOBAL(giveup_fpu) 
	blr

#endif



/*

 * extern void abort(void)

 *

 * At present, this routine just applies a system reset.

 */

_GLOBAL(abort)

        mfspr   r13,SPRN_DBCR0

        oris    r13,r13,DBCR0_RST_SYSTEM@h

        mtspr   SPRN_DBCR0,r13



_GLOBAL(set_context)



#ifdef CONFIG_BDI_SWITCH

arch/powerpc/platforms/44x/44x.h

0 → 100644
+6 −0
Original line number Diff line number Diff line 
#ifndef __POWERPC_PLATFORMS_44X_44X_H

#define __POWERPC_PLATFORMS_44X_44X_H



extern void ppc44x_reset_system(char *cmd);



#endif /* __POWERPC_PLATFORMS_44X_44X_H */

arch/powerpc/platforms/44x/Makefile

0 → 100644
+1 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_44x)	:= misc_44x.o

arch/powerpc/platforms/44x/misc_44x.S

0 → 100644
+26 −0
Original line number Diff line number Diff line 
/*

 * This file contains miscellaneous low-level functions for PPC 44x.

 *    Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version

 * 2 of the License, or (at your option) any later version.

 *

 */



#include <asm/reg.h>

#include <asm/ppc_asm.h>



	.text



/*

 * void ppc44x_reset_system(char *cmd)

 *

 * At present, this routine just applies a system reset.

 */

_GLOBAL(ppc44x_reset_system)

	mfspr	r13,SPRN_DBCR0

	oris	r13,r13,DBCR0_RST_SYSTEM@h

	mtspr	SPRN_DBCR0,r13

	b	.			/* Just in case the reset doesn't work */

arch/powerpc/platforms/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -6,7 +6,8 @@ obj-$(CONFIG_PPC_PMAC) += powermac/ 
endif

endif

obj-$(CONFIG_PPC_CHRP)		+= chrp/

obj-$(CONFIG_4xx)		+= 4xx/

#obj-$(CONFIG_4xx)		+= 4xx/

obj-$(CONFIG_44x)		+= 44x/

obj-$(CONFIG_PPC_MPC52xx)	+= 52xx/

obj-$(CONFIG_PPC_8xx)		+= 8xx/

obj-$(CONFIG_PPC_82xx)		+= 82xx/