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[POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c 

This patch creates a common system reset routine for all 40x and 44x
systems. Previously only a 44x routine existed. But since this system
reset via the debug control register is common for 40x and 44x let's
share this code for all those platforms in ppc4xx_soc.c.

This patch also enables CONFIG_4xx_SOC for all 40x and 44x platforms.

Tested on Kilauea (405EX) and Canyonlands (440EX).

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This commit is contained in:
Stefan Roese 2008-03-28 01:43:31 +11:00 committed by Josh Boyer
parent d2477b5cc8
commit 93173ce272
19 changed files with 64 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/platforms/40x/ep405.c
View File

@ -29,6 +29,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
static struct device_node *bcsr_node;
static void __iomem *bcsr_regs;
@ -119,5 +120,6 @@ define_machine(ep405) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

4
arch/powerpc/platforms/40x/kilauea.c
View File

@ -1,7 +1,7 @@
/*
* Kilauea board specific routines
*
* Copyright 2007 DENX Software Engineering, Stefan Roese <sr@denx.de>
* Copyright 2007-2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
*
* Based on the Walnut code by
* Josh Boyer <jwboyer@linux.vnet.ibm.com>
@ -20,6 +20,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
static __initdata struct of_device_id kilauea_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -54,5 +55,6 @@ define_machine(kilauea) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

2
arch/powerpc/platforms/40x/makalu.c
View File

@ -20,6 +20,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
static __initdata struct of_device_id makalu_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -54,5 +55,6 @@ define_machine(makalu) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

2
arch/powerpc/platforms/40x/virtex.c
View File

@ -14,6 +14,7 @@
#include <asm/prom.h>
#include <asm/time.h>
#include <asm/xilinx_intc.h>
#include <asm/ppc4xx.h>
static struct of_device_id xilinx_of_bus_ids[] __initdata = {
{ .compatible = "xlnx,plb-v46-1.00.a", },
@ -48,5 +49,6 @@ define_machine(virtex) {
.probe = virtex_probe,
.init_IRQ = xilinx_intc_init_tree,
.get_irq = xilinx_intc_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

2
arch/powerpc/platforms/40x/walnut.c
View File

@ -26,6 +26,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include <asm/ppc4xx.h>
static __initdata struct of_device_id walnut_of_bus[] = {
{ .compatible = "ibm,plb3", },
@ -61,5 +62,6 @@ define_machine(walnut) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

1
arch/powerpc/platforms/44x/44x.h
View File

@ -3,6 +3,5 @@
extern u8 as1_readb(volatile u8 __iomem *addr);
extern void as1_writeb(u8 data, volatile u8 __iomem *addr);
extern void ppc44x_reset_system(char *cmd);
#endif /* __POWERPC_PLATFORMS_44X_44X_H */

1
arch/powerpc/platforms/44x/Kconfig
View File

@ -129,7 +129,6 @@ config 440GP
config 440GX
bool
select 4xx_SOC
select IBM_NEW_EMAC_EMAC4
select IBM_NEW_EMAC_RGMII
select IBM_NEW_EMAC_ZMII #test only

5
arch/powerpc/platforms/44x/bamboo.c
View File

@ -22,8 +22,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id bamboo_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -58,6 +57,6 @@ define_machine(bamboo) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

5
arch/powerpc/platforms/44x/canyonlands.c
View File

@ -23,8 +23,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id canyonlands_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -59,6 +58,6 @@ define_machine(canyonlands) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

5
arch/powerpc/platforms/44x/ebony.c
View File

@ -26,8 +26,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id ebony_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -66,6 +65,6 @@ define_machine(ebony) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

5
arch/powerpc/platforms/44x/katmai.c
View File

@ -22,8 +22,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id katmai_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -58,6 +57,6 @@ define_machine(katmai) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

11
arch/powerpc/platforms/44x/misc_44x.S
View File

@ -44,14 +44,3 @@ _GLOBAL(as1_writeb)
sync
isync
blr
/*
* 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 */

4
arch/powerpc/platforms/44x/rainier.c
View File

@ -22,7 +22,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id rainier_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -57,6 +57,6 @@ define_machine(rainier) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

4
arch/powerpc/platforms/44x/sequoia.c
View File

@ -23,7 +23,7 @@
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id sequoia_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -58,6 +58,6 @@ define_machine(sequoia) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

5
arch/powerpc/platforms/44x/taishan.c
View File

@ -29,8 +29,7 @@
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/pci-bridge.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id taishan_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -68,6 +67,6 @@ define_machine(taishan) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

6
arch/powerpc/platforms/44x/warp.c
View File

@ -18,9 +18,7 @@
#include <asm/udbg.h>
#include <asm/time.h>
#include <asm/uic.h>
#include "44x.h"
#include <asm/ppc4xx.h>
static __initdata struct of_device_id warp_of_bus[] = {
{ .compatible = "ibm,plb4", },
@ -49,7 +47,7 @@ define_machine(warp) {
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.restart = ppc44x_reset_system,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};

2
arch/powerpc/platforms/Kconfig.cputype
View File

@ -41,11 +41,13 @@ config 40x
bool "AMCC 40x"
select PPC_DCR_NATIVE
select PPC_UDBG_16550
select 4xx_SOC
config 44x
bool "AMCC 44x"
select PPC_DCR_NATIVE
select PPC_UDBG_16550
select 4xx_SOC
config E200
bool "Freescale e200"

11
arch/powerpc/sysdev/ppc4xx_soc.c
View File

@ -23,6 +23,7 @@
#include <asm/dcr.h>
#include <asm/dcr-regs.h>
#include <asm/reg.h>
static u32 dcrbase_l2c;
@ -187,3 +188,13 @@ static int __init ppc4xx_l2c_probe(void)
return 0;
}
arch_initcall(ppc4xx_l2c_probe);
/*
* At present, this routine just applies a system reset.
*/
void ppc4xx_reset_system(char *cmd)
{
mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_RST_SYSTEM);
while (1)
; /* Just in case the reset doesn't work */
}

18
include/asm-powerpc/ppc4xx.h Normal file
View File

@ -0,0 +1,18 @@
/*
* PPC4xx Prototypes and definitions
*
* Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de>
*
* This 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.
*
*/
#ifndef __ASM_POWERPC_PPC4xx_H__
#define __ASM_POWERPC_PPC4xx_H__
extern void ppc4xx_reset_system(char *cmd);
#endif /* __ASM_POWERPC_PPC4xx_H__ */