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-rw-r--r--arch/powerpc/platforms/83xx/Makefile4
-rw-r--r--arch/powerpc/platforms/83xx/misc.c55
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_sys.c89
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_sys.h2
-rw-r--r--arch/powerpc/platforms/83xx/mpc83xx.h5
-rw-r--r--arch/powerpc/platforms/83xx/pci.c21
6 files changed, 91 insertions, 85 deletions
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index 9d8b28ef3343..5c72367441a8 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -1,4 +1,6 @@
1# 1#
2# Makefile for the PowerPC 83xx linux kernel. 2# Makefile for the PowerPC 83xx linux kernel.
3# 3#
4obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o pci.o 4obj-y := misc.o
5obj-$(CONFIG_PCI) += pci.o
6obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o
diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c
new file mode 100644
index 000000000000..1455bcef4892
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/misc.c
@@ -0,0 +1,55 @@
1/*
2 * misc setup functions for MPC83xx
3 *
4 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#include <linux/config.h>
13#include <linux/stddef.h>
14#include <linux/kernel.h>
15
16#include <asm/io.h>
17#include <asm/hw_irq.h>
18#include <sysdev/fsl_soc.h>
19
20#include "mpc83xx.h"
21
22void mpc83xx_restart(char *cmd)
23{
24#define RST_OFFSET 0x00000900
25#define RST_PROT_REG 0x00000018
26#define RST_CTRL_REG 0x0000001c
27 __be32 __iomem *reg;
28
29 /* map reset register space */
30 reg = ioremap(get_immrbase() + 0x900, 0xff);
31
32 local_irq_disable();
33
34 /* enable software reset "RSTE" */
35 out_be32(reg + (RST_PROT_REG >> 2), 0x52535445);
36
37 /* set software hard reset */
38 out_be32(reg + (RST_CTRL_REG >> 2), 0x2);
39 for (;;) ;
40}
41
42long __init mpc83xx_time_init(void)
43{
44#define SPCR_OFFSET 0x00000110
45#define SPCR_TBEN 0x00400000
46 __be32 __iomem *spcr = ioremap(get_immrbase() + SPCR_OFFSET, 4);
47 __be32 tmp;
48
49 tmp = in_be32(spcr);
50 out_be32(spcr, tmp | SPCR_TBEN);
51
52 iounmap(spcr);
53
54 return 0;
55}
diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_sys.c
index 2098dd05a773..7c18b4cd5db4 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_sys.c
@@ -24,22 +24,15 @@
24#include <linux/delay.h> 24#include <linux/delay.h>
25#include <linux/seq_file.h> 25#include <linux/seq_file.h>
26#include <linux/root_dev.h> 26#include <linux/root_dev.h>
27#include <linux/module.h>
28#include <linux/fsl_devices.h>
29 27
30#include <asm/system.h> 28#include <asm/system.h>
31#include <asm/pgtable.h>
32#include <asm/page.h>
33#include <asm/atomic.h> 29#include <asm/atomic.h>
34#include <asm/time.h> 30#include <asm/time.h>
35#include <asm/io.h> 31#include <asm/io.h>
36#include <asm/machdep.h> 32#include <asm/machdep.h>
37#include <asm/ipic.h> 33#include <asm/ipic.h>
38#include <asm/bootinfo.h> 34#include <asm/bootinfo.h>
39#include <asm/pci-bridge.h>
40#include <asm/mpc83xx.h>
41#include <asm/irq.h> 35#include <asm/irq.h>
42#include <mm/mmu_decl.h>
43#include <asm/prom.h> 36#include <asm/prom.h>
44#include <asm/udbg.h> 37#include <asm/udbg.h>
45#include <sysdev/fsl_soc.h> 38#include <sysdev/fsl_soc.h>
@@ -52,8 +45,6 @@ unsigned long isa_mem_base = 0;
52#endif 45#endif
53 46
54#ifdef CONFIG_PCI 47#ifdef CONFIG_PCI
55extern int mpc83xx_pci2_busno;
56
57static int 48static int
58mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) 49mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
59{ 50{
@@ -78,26 +69,14 @@ mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
78 const long min_idsel = 0x11, max_idsel = 0x20, irqs_per_slot = 4; 69 const long min_idsel = 0x11, max_idsel = 0x20, irqs_per_slot = 4;
79 return PCI_IRQ_TABLE_LOOKUP; 70 return PCI_IRQ_TABLE_LOOKUP;
80} 71}
81 72#endif /* CONFIG_PCI */
82static int
83mpc83xx_exclude_device(u_char bus, u_char devfn)
84{
85 if (bus == 0 && PCI_SLOT(devfn) == 0)
86 return PCIBIOS_DEVICE_NOT_FOUND;
87 if (mpc83xx_pci2_busno)
88 if (bus == (mpc83xx_pci2_busno) && PCI_SLOT(devfn) == 0)
89 return PCIBIOS_DEVICE_NOT_FOUND;
90 return PCIBIOS_SUCCESSFUL;
91}
92#endif /* CONFIG_PCI */
93 73
94/* ************************************************************************ 74/* ************************************************************************
95 * 75 *
96 * Setup the architecture 76 * Setup the architecture
97 * 77 *
98 */ 78 */
99static void __init 79static void __init mpc834x_sys_setup_arch(void)
100mpc834x_sys_setup_arch(void)
101{ 80{
102 struct device_node *np; 81 struct device_node *np;
103 82
@@ -106,14 +85,14 @@ mpc834x_sys_setup_arch(void)
106 85
107 np = of_find_node_by_type(NULL, "cpu"); 86 np = of_find_node_by_type(NULL, "cpu");
108 if (np != 0) { 87 if (np != 0) {
109 unsigned int *fp = (int *) get_property(np, "clock-frequency", NULL); 88 unsigned int *fp =
89 (int *)get_property(np, "clock-frequency", NULL);
110 if (fp != 0) 90 if (fp != 0)
111 loops_per_jiffy = *fp / HZ; 91 loops_per_jiffy = *fp / HZ;
112 else 92 else
113 loops_per_jiffy = 50000000 / HZ; 93 loops_per_jiffy = 50000000 / HZ;
114 of_node_put(np); 94 of_node_put(np);
115 } 95 }
116
117#ifdef CONFIG_PCI 96#ifdef CONFIG_PCI
118 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) 97 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
119 add_bridge(np); 98 add_bridge(np);
@@ -124,14 +103,13 @@ mpc834x_sys_setup_arch(void)
124#endif 103#endif
125 104
126#ifdef CONFIG_ROOT_NFS 105#ifdef CONFIG_ROOT_NFS
127 ROOT_DEV = Root_NFS; 106 ROOT_DEV = Root_NFS;
128#else 107#else
129 ROOT_DEV = Root_HDA1; 108 ROOT_DEV = Root_HDA1;
130#endif 109#endif
131} 110}
132 111
133void __init 112void __init mpc834x_sys_init_IRQ(void)
134mpc834x_sys_init_IRQ(void)
135{ 113{
136 u8 senses[8] = { 114 u8 senses[8] = {
137 0, /* EXT 0 */ 115 0, /* EXT 0 */
@@ -160,64 +138,27 @@ mpc834x_sys_init_IRQ(void)
160} 138}
161 139
162#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374) 140#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
163extern ulong ds1374_get_rtc_time(void); 141extern ulong ds1374_get_rtc_time(void);
164extern int ds1374_set_rtc_time(ulong); 142extern int ds1374_set_rtc_time(ulong);
165 143
166static int __init 144static int __init mpc834x_rtc_hookup(void)
167mpc834x_rtc_hookup(void)
168{ 145{
169 struct timespec tv; 146 struct timespec tv;
170 147
171 ppc_md.get_rtc_time = ds1374_get_rtc_time; 148 ppc_md.get_rtc_time = ds1374_get_rtc_time;
172 ppc_md.set_rtc_time = ds1374_set_rtc_time; 149 ppc_md.set_rtc_time = ds1374_set_rtc_time;
173 150
174 tv.tv_nsec = 0; 151 tv.tv_nsec = 0;
175 tv.tv_sec = (ppc_md.get_rtc_time)(); 152 tv.tv_sec = (ppc_md.get_rtc_time) ();
176 do_settimeofday(&tv); 153 do_settimeofday(&tv);
177 154
178 return 0; 155 return 0;
179} 156}
157
180late_initcall(mpc834x_rtc_hookup); 158late_initcall(mpc834x_rtc_hookup);
181#endif 159#endif
182 160
183static void 161void __init platform_init(void)
184mpc83xx_restart(char *cmd)
185{
186#define RST_OFFSET 0x00000900
187#define RST_PROT_REG 0x00000018
188#define RST_CTRL_REG 0x0000001c
189 __be32 __iomem *reg;
190
191 // map reset register space
192 reg = ioremap(get_immrbase() + 0x900, 0xff);
193
194 local_irq_disable();
195
196 /* enable software reset "RSTE" */
197 out_be32(reg + (RST_PROT_REG >> 2), 0x52535445);
198
199 /* set software hard reset */
200 out_be32(reg + (RST_CTRL_REG >> 2), 0x52535445);
201 for(;;);
202}
203
204static long __init
205mpc83xx_time_init(void)
206{
207#define SPCR_OFFSET 0x00000110
208#define SPCR_TBEN 0x00400000
209 __be32 __iomem *spcr = ioremap(get_immrbase() + SPCR_OFFSET, 4);
210 __be32 tmp;
211
212 tmp = in_be32(spcr);
213 out_be32(spcr, tmp|SPCR_TBEN);
214
215 iounmap(spcr);
216
217 return 0;
218}
219void __init
220platform_init(void)
221{ 162{
222 /* setup the PowerPC module struct */ 163 /* setup the PowerPC module struct */
223 ppc_md.setup_arch = mpc834x_sys_setup_arch; 164 ppc_md.setup_arch = mpc834x_sys_setup_arch;
@@ -239,5 +180,3 @@ platform_init(void)
239 180
240 return; 181 return;
241} 182}
242
243
diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.h b/arch/powerpc/platforms/83xx/mpc834x_sys.h
index e4ca39f6a862..fedecb73f7ff 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.h
+++ b/arch/powerpc/platforms/83xx/mpc834x_sys.h
@@ -20,4 +20,4 @@
20#define PIRQC MPC83xx_IRQ_EXT6 20#define PIRQC MPC83xx_IRQ_EXT6
21#define PIRQD MPC83xx_IRQ_EXT7 21#define PIRQD MPC83xx_IRQ_EXT7
22 22
23#endif /* __MACH_MPC83XX_SYS_H__ */ 23#endif /* __MACH_MPC83XX_SYS_H__ */
diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index ce9e66abef24..01cae106912b 100644
--- a/arch/powerpc/platforms/83xx/mpc83xx.h
+++ b/arch/powerpc/platforms/83xx/mpc83xx.h
@@ -10,5 +10,8 @@
10 */ 10 */
11 11
12extern int add_bridge(struct device_node *dev); 12extern int add_bridge(struct device_node *dev);
13extern int mpc83xx_exclude_device(u_char bus, u_char devfn);
14extern void mpc83xx_restart(char *cmd);
15extern long mpc83xx_time_init(void);
13 16
14#endif /* __MPC83XX_H__ */ 17#endif /* __MPC83XX_H__ */
diff --git a/arch/powerpc/platforms/83xx/pci.c b/arch/powerpc/platforms/83xx/pci.c
index 469cdacc5bd4..16f7d3b30e1d 100644
--- a/arch/powerpc/platforms/83xx/pci.c
+++ b/arch/powerpc/platforms/83xx/pci.c
@@ -36,7 +36,16 @@
36 36
37int mpc83xx_pci2_busno; 37int mpc83xx_pci2_busno;
38 38
39#ifdef CONFIG_PCI 39int mpc83xx_exclude_device(u_char bus, u_char devfn)
40{
41 if (bus == 0 && PCI_SLOT(devfn) == 0)
42 return PCIBIOS_DEVICE_NOT_FOUND;
43 if (mpc83xx_pci2_busno)
44 if (bus == (mpc83xx_pci2_busno) && PCI_SLOT(devfn) == 0)
45 return PCIBIOS_DEVICE_NOT_FOUND;
46 return PCIBIOS_SUCCESSFUL;
47}
48
40int __init add_bridge(struct device_node *dev) 49int __init add_bridge(struct device_node *dev)
41{ 50{
42 int len; 51 int len;
@@ -52,7 +61,7 @@ int __init add_bridge(struct device_node *dev)
52 has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); 61 has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
53 62
54 /* Get bus range if any */ 63 /* Get bus range if any */
55 bus_range = (int *) get_property(dev, "bus-range", &len); 64 bus_range = (int *)get_property(dev, "bus-range", &len);
56 if (bus_range == NULL || len < 2 * sizeof(int)) { 65 if (bus_range == NULL || len < 2 * sizeof(int)) {
57 printk(KERN_WARNING "Can't get bus-range for %s, assume" 66 printk(KERN_WARNING "Can't get bus-range for %s, assume"
58 " bus 0\n", dev->full_name); 67 " bus 0\n", dev->full_name);
@@ -74,7 +83,7 @@ int __init add_bridge(struct device_node *dev)
74 if ((rsrc.start & 0xfffff) == 0x8500) { 83 if ((rsrc.start & 0xfffff) == 0x8500) {
75 setup_indirect_pci(hose, immr + 0x8300, immr + 0x8304); 84 setup_indirect_pci(hose, immr + 0x8300, immr + 0x8304);
76 } 85 }
77 /* PCI 2*/ 86 /* PCI 2 */
78 if ((rsrc.start & 0xfffff) == 0x8600) { 87 if ((rsrc.start & 0xfffff) == 0x8600) {
79 setup_indirect_pci(hose, immr + 0x8380, immr + 0x8384); 88 setup_indirect_pci(hose, immr + 0x8380, immr + 0x8384);
80 primary = 0; 89 primary = 0;
@@ -84,10 +93,10 @@ int __init add_bridge(struct device_node *dev)
84 93
85 printk(KERN_INFO "Found MPC83xx PCI host bridge at 0x%08lx. " 94 printk(KERN_INFO "Found MPC83xx PCI host bridge at 0x%08lx. "
86 "Firmware bus number: %d->%d\n", 95 "Firmware bus number: %d->%d\n",
87 rsrc.start, hose->first_busno, hose->last_busno); 96 rsrc.start, hose->first_busno, hose->last_busno);
88 97
89 DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", 98 DBG(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
90 hose, hose->cfg_addr, hose->cfg_data); 99 hose, hose->cfg_addr, hose->cfg_data);
91 100
92 /* Interpret the "ranges" property */ 101 /* Interpret the "ranges" property */
93 /* This also maps the I/O region and sets isa_io/mem_base */ 102 /* This also maps the I/O region and sets isa_io/mem_base */
@@ -95,5 +104,3 @@ int __init add_bridge(struct device_node *dev)
95 104
96 return 0; 105 return 0;
97} 106}
98
99#endif