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 <[EMAIL PROTECTED]>
---
This patch applies to the linux-next tree of today (2008-03-27).
arch/powerpc/platforms/40x/ep405.c | 2 ++
arch/powerpc/platforms/40x/kilauea.c | 4 +++-
arch/powerpc/platforms/40x/makalu.c | 2 ++
arch/powerpc/platforms/40x/virtex.c | 2 ++
arch/powerpc/platforms/40x/walnut.c | 4 +++-
arch/powerpc/platforms/44x/44x.h | 1 -
arch/powerpc/platforms/44x/Kconfig | 1 -
arch/powerpc/platforms/44x/bamboo.c | 15 +++++++--------
arch/powerpc/platforms/44x/canyonlands.c | 5 ++---
arch/powerpc/platforms/44x/ebony.c | 5 ++---
arch/powerpc/platforms/44x/katmai.c | 5 ++---
arch/powerpc/platforms/44x/misc_44x.S | 11 -----------
arch/powerpc/platforms/44x/rainier.c | 4 ++--
arch/powerpc/platforms/44x/sequoia.c | 4 +---
arch/powerpc/platforms/44x/taishan.c | 5 ++---
arch/powerpc/platforms/44x/warp.c | 6 ++----
arch/powerpc/platforms/Kconfig.cputype | 2 ++
arch/powerpc/sysdev/ppc4xx_soc.c | 11 +++++++++++
include/asm-powerpc/ppc4xx.h | 18 ++++++++++++++++++
19 files changed, 63 insertions(+), 44 deletions(-)
create mode 100644 include/asm-powerpc/ppc4xx.h
diff --git a/arch/powerpc/platforms/40x/ep405.c
b/arch/powerpc/platforms/40x/ep405.c
index 13d1345..ae2e7f6 100644
--- a/arch/powerpc/platforms/40x/ep405.c
+++ b/arch/powerpc/platforms/40x/ep405.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/40x/kilauea.c
b/arch/powerpc/platforms/40x/kilauea.c
index f9206a7..1dd24ff 100644
--- a/arch/powerpc/platforms/40x/kilauea.c
+++ b/arch/powerpc/platforms/40x/kilauea.c
@@ -1,7 +1,7 @@
/*
* Kilauea board specific routines
*
- * Copyright 2007 DENX Software Engineering, Stefan Roese <[EMAIL PROTECTED]>
+ * Copyright 2007-2008 DENX Software Engineering, Stefan Roese <[EMAIL
PROTECTED]>
*
* Based on the Walnut code by
* Josh Boyer <[EMAIL PROTECTED]>
@@ -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,
};
diff --git a/arch/powerpc/platforms/40x/makalu.c
b/arch/powerpc/platforms/40x/makalu.c
index 4e4df72..a6a1d60 100644
--- a/arch/powerpc/platforms/40x/makalu.c
+++ b/arch/powerpc/platforms/40x/makalu.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/40x/virtex.c
b/arch/powerpc/platforms/40x/virtex.c
index 0422590..fc7fb00 100644
--- a/arch/powerpc/platforms/40x/virtex.c
+++ b/arch/powerpc/platforms/40x/virtex.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/40x/walnut.c
b/arch/powerpc/platforms/40x/walnut.c
index b8b257e..335df91 100644
--- a/arch/powerpc/platforms/40x/walnut.c
+++ b/arch/powerpc/platforms/40x/walnut.c
@@ -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,
- .calibrate_decr = generic_calibrate_decr,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
};
diff --git a/arch/powerpc/platforms/44x/44x.h b/arch/powerpc/platforms/44x/44x.h
index 42eabf8..dbc4d2b 100644
--- a/arch/powerpc/platforms/44x/44x.h
+++ b/arch/powerpc/platforms/44x/44x.h
@@ -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 */
diff --git a/arch/powerpc/platforms/44x/Kconfig
b/arch/powerpc/platforms/44x/Kconfig
index 5fc28aa..6abe913 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -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
diff --git a/arch/powerpc/platforms/44x/bamboo.c
b/arch/powerpc/platforms/44x/bamboo.c
index fb9a22a..cef169e 100644
--- a/arch/powerpc/platforms/44x/bamboo.c
+++ b/arch/powerpc/platforms/44x/bamboo.c
@@ -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", },
@@ -53,11 +52,11 @@ static int __init bamboo_probe(void)
}
define_machine(bamboo) {
- .name = "Bamboo",
- .probe = bamboo_probe,
- .progress = udbg_progress,
- .init_IRQ = uic_init_tree,
- .get_irq = uic_get_irq,
- .restart = ppc44x_reset_system,
+ .name = "Bamboo",
+ .probe = bamboo_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};
diff --git a/arch/powerpc/platforms/44x/canyonlands.c
b/arch/powerpc/platforms/44x/canyonlands.c
index dac5b32..3949289 100644
--- a/arch/powerpc/platforms/44x/canyonlands.c
+++ b/arch/powerpc/platforms/44x/canyonlands.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/44x/ebony.c
b/arch/powerpc/platforms/44x/ebony.c
index 1a8d467..a0e8fe4 100644
--- a/arch/powerpc/platforms/44x/ebony.c
+++ b/arch/powerpc/platforms/44x/ebony.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/44x/katmai.c
b/arch/powerpc/platforms/44x/katmai.c
index 1113412..44f4b3a 100644
--- a/arch/powerpc/platforms/44x/katmai.c
+++ b/arch/powerpc/platforms/44x/katmai.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/44x/misc_44x.S
b/arch/powerpc/platforms/44x/misc_44x.S
index 3bce71d..dc12b80 100644
--- a/arch/powerpc/platforms/44x/misc_44x.S
+++ b/arch/powerpc/platforms/44x/misc_44x.S
@@ -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,[EMAIL PROTECTED]
- mtspr SPRN_DBCR0,r13
- b . /* Just in case the reset doesn't work
*/
diff --git a/arch/powerpc/platforms/44x/rainier.c
b/arch/powerpc/platforms/44x/rainier.c
index a7fae1c..4f1ff84 100644
--- a/arch/powerpc/platforms/44x/rainier.c
+++ b/arch/powerpc/platforms/44x/rainier.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/44x/sequoia.c
b/arch/powerpc/platforms/44x/sequoia.c
index d279db4..1782d41 100644
--- a/arch/powerpc/platforms/44x/sequoia.c
+++ b/arch/powerpc/platforms/44x/sequoia.c
@@ -23,8 +23,6 @@
#include <asm/uic.h>
#include <asm/pci-bridge.h>
-#include "44x.h"
-
static __initdata struct of_device_id sequoia_of_bus[] = {
{ .compatible = "ibm,plb4", },
{ .compatible = "ibm,opb", },
@@ -58,6 +56,6 @@ 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,
};
diff --git a/arch/powerpc/platforms/44x/taishan.c
b/arch/powerpc/platforms/44x/taishan.c
index 28ab7e2..49c78b2 100644
--- a/arch/powerpc/platforms/44x/taishan.c
+++ b/arch/powerpc/platforms/44x/taishan.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/44x/warp.c
b/arch/powerpc/platforms/44x/warp.c
index da5b7b7..39cf615 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -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,
};
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc/platforms/Kconfig.cputype
index 0c3face..5fc7fac 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -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"
diff --git a/arch/powerpc/sysdev/ppc4xx_soc.c b/arch/powerpc/sysdev/ppc4xx_soc.c
index 4b8617e..5b32adc 100644
--- a/arch/powerpc/sysdev/ppc4xx_soc.c
+++ b/arch/powerpc/sysdev/ppc4xx_soc.c
@@ -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 */
+}
diff --git a/include/asm-powerpc/ppc4xx.h b/include/asm-powerpc/ppc4xx.h
new file mode 100644
index 0000000..033039a
--- /dev/null
+++ b/include/asm-powerpc/ppc4xx.h
@@ -0,0 +1,18 @@
+/*
+ * PPC4xx Prototypes and definitions
+ *
+ * Copyright 2008 DENX Software Engineering, Stefan Roese <[EMAIL PROTECTED]>
+ *
+ * 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__ */
--
1.5.4.4
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