diff options
Diffstat (limited to 'arch/powerpc/platforms/83xx')
-rw-r--r-- | arch/powerpc/platforms/83xx/Makefile | 4 | ||||
-rw-r--r-- | arch/powerpc/platforms/83xx/misc.c | 55 | ||||
-rw-r--r-- | arch/powerpc/platforms/83xx/mpc834x_sys.c | 89 | ||||
-rw-r--r-- | arch/powerpc/platforms/83xx/mpc834x_sys.h | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/83xx/mpc83xx.h | 5 | ||||
-rw-r--r-- | arch/powerpc/platforms/83xx/pci.c | 21 |
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 | # |
4 | obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o pci.o | 4 | obj-y := misc.o |
5 | obj-$(CONFIG_PCI) += pci.o | ||
6 | obj-$(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 | |||
22 | void 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 | |||
42 | long __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 |
55 | extern int mpc83xx_pci2_busno; | ||
56 | |||
57 | static int | 48 | static int |
58 | mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) | 49 | mpc83xx_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 */ | |
82 | static int | ||
83 | mpc83xx_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 | */ |
99 | static void __init | 79 | static void __init mpc834x_sys_setup_arch(void) |
100 | mpc834x_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 | ||
133 | void __init | 112 | void __init mpc834x_sys_init_IRQ(void) |
134 | mpc834x_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) |
163 | extern ulong ds1374_get_rtc_time(void); | 141 | extern ulong ds1374_get_rtc_time(void); |
164 | extern int ds1374_set_rtc_time(ulong); | 142 | extern int ds1374_set_rtc_time(ulong); |
165 | 143 | ||
166 | static int __init | 144 | static int __init mpc834x_rtc_hookup(void) |
167 | mpc834x_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 | |||
180 | late_initcall(mpc834x_rtc_hookup); | 158 | late_initcall(mpc834x_rtc_hookup); |
181 | #endif | 159 | #endif |
182 | 160 | ||
183 | static void | 161 | void __init platform_init(void) |
184 | mpc83xx_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 | |||
204 | static long __init | ||
205 | mpc83xx_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 | } | ||
219 | void __init | ||
220 | platform_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 | ||
12 | extern int add_bridge(struct device_node *dev); | 12 | extern int add_bridge(struct device_node *dev); |
13 | extern int mpc83xx_exclude_device(u_char bus, u_char devfn); | ||
14 | extern void mpc83xx_restart(char *cmd); | ||
15 | extern 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 | ||
37 | int mpc83xx_pci2_busno; | 37 | int mpc83xx_pci2_busno; |
38 | 38 | ||
39 | #ifdef CONFIG_PCI | 39 | int 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 | |||
40 | int __init add_bridge(struct device_node *dev) | 49 | int __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 | ||