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authorSylvain Munaut <tnt@246tNt.com>2007-02-12 17:13:24 -0500
committerPaul Mackerras <paulus@samba.org>2007-02-12 23:35:53 -0500
commit9724b86f0706ca9b552d82e013cb0c208b4f5529 (patch)
treef2f23418cdd54a3589d27eb17ccdd7dad8b1c3d3 /arch/powerpc
parent46e4cf6c14e0a5b8916a1236a7079ccad3f4352a (diff)
[POWERPC] Small cleanup of EFIKA platform
The efika platform used three files efika-pci.c efika-setup.c and a 2 line efika.h to link the two. The total of code in those is really not much and therefore, I think they're better merged in a single file. There is absolutely _no_code_change_ at all, just merged the files. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/52xx/Makefile2
-rw-r--r--arch/powerpc/platforms/52xx/efika-pci.c119
-rw-r--r--arch/powerpc/platforms/52xx/efika-setup.c121
-rw-r--r--arch/powerpc/platforms/52xx/efika.c243
-rw-r--r--arch/powerpc/platforms/52xx/efika.h19
5 files changed, 244 insertions, 260 deletions
diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile
index 795b713ec9ee..07cdbcacf156 100644
--- a/arch/powerpc/platforms/52xx/Makefile
+++ b/arch/powerpc/platforms/52xx/Makefile
@@ -6,5 +6,5 @@ obj-y += mpc52xx_pic.o mpc52xx_common.o
6obj-$(CONFIG_PCI) += mpc52xx_pci.o 6obj-$(CONFIG_PCI) += mpc52xx_pci.o
7endif 7endif
8 8
9obj-$(CONFIG_PPC_EFIKA) += efika-setup.o efika-pci.o 9obj-$(CONFIG_PPC_EFIKA) += efika.o
10obj-$(CONFIG_PPC_LITE5200) += lite5200.o 10obj-$(CONFIG_PPC_LITE5200) += lite5200.o
diff --git a/arch/powerpc/platforms/52xx/efika-pci.c b/arch/powerpc/platforms/52xx/efika-pci.c
deleted file mode 100644
index 62e05b2a9227..000000000000
--- a/arch/powerpc/platforms/52xx/efika-pci.c
+++ /dev/null
@@ -1,119 +0,0 @@
1
2#include <linux/kernel.h>
3#include <linux/pci.h>
4#include <linux/string.h>
5#include <linux/init.h>
6
7#include <asm/io.h>
8#include <asm/irq.h>
9#include <asm/prom.h>
10#include <asm/machdep.h>
11#include <asm/sections.h>
12#include <asm/pci-bridge.h>
13#include <asm/rtas.h>
14
15#include "efika.h"
16
17#ifdef CONFIG_PCI
18/*
19 * Access functions for PCI config space using RTAS calls.
20 */
21static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
22 int len, u32 * val)
23{
24 struct pci_controller *hose = bus->sysdata;
25 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
26 | (((bus->number - hose->first_busno) & 0xff) << 16)
27 | (hose->index << 24);
28 int ret = -1;
29 int rval;
30
31 rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
32 *val = ret;
33 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
34}
35
36static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
37 int offset, int len, u32 val)
38{
39 struct pci_controller *hose = bus->sysdata;
40 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
41 | (((bus->number - hose->first_busno) & 0xff) << 16)
42 | (hose->index << 24);
43 int rval;
44
45 rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
46 addr, len, val);
47 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
48}
49
50static struct pci_ops rtas_pci_ops = {
51 rtas_read_config,
52 rtas_write_config
53};
54
55void __init efika_pcisetup(void)
56{
57 const int *bus_range;
58 int len;
59 struct pci_controller *hose;
60 struct device_node *root;
61 struct device_node *pcictrl;
62
63 root = of_find_node_by_path("/");
64 if (root == NULL) {
65 printk(KERN_WARNING EFIKA_PLATFORM_NAME
66 ": Unable to find the root node\n");
67 return;
68 }
69
70 for (pcictrl = NULL;;) {
71 pcictrl = of_get_next_child(root, pcictrl);
72 if ((pcictrl == NULL) || (strcmp(pcictrl->name, "pci") == 0))
73 break;
74 }
75
76 of_node_put(root);
77
78 if (pcictrl == NULL) {
79 printk(KERN_WARNING EFIKA_PLATFORM_NAME
80 ": Unable to find the PCI bridge node\n");
81 return;
82 }
83
84 bus_range = get_property(pcictrl, "bus-range", &len);
85 if (bus_range == NULL || len < 2 * sizeof(int)) {
86 printk(KERN_WARNING EFIKA_PLATFORM_NAME
87 ": Can't get bus-range for %s\n", pcictrl->full_name);
88 return;
89 }
90
91 if (bus_range[1] == bus_range[0])
92 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI bus %d",
93 bus_range[0]);
94 else
95 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
96 bus_range[0], bus_range[1]);
97 printk(" controlled by %s\n", pcictrl->full_name);
98 printk("\n");
99
100 hose = pcibios_alloc_controller();
101 if (!hose) {
102 printk(KERN_WARNING EFIKA_PLATFORM_NAME
103 ": Can't allocate PCI controller structure for %s\n",
104 pcictrl->full_name);
105 return;
106 }
107
108 hose->arch_data = of_node_get(pcictrl);
109 hose->first_busno = bus_range[0];
110 hose->last_busno = bus_range[1];
111 hose->ops = &rtas_pci_ops;
112
113 pci_process_bridge_OF_ranges(hose, pcictrl, 0);
114}
115
116#else
117void __init efika_pcisetup(void)
118{}
119#endif
diff --git a/arch/powerpc/platforms/52xx/efika-setup.c b/arch/powerpc/platforms/52xx/efika-setup.c
deleted file mode 100644
index b6945cbbfba6..000000000000
--- a/arch/powerpc/platforms/52xx/efika-setup.c
+++ /dev/null
@@ -1,121 +0,0 @@
1/*
2 *
3 * Efika 5K2 platform setup
4 * Some code really inspired from the lite5200b platform.
5 *
6 * Copyright (C) 2006 bplan GmbH
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of any
10 * kind, whether express or implied.
11 *
12 */
13
14#include <linux/errno.h>
15#include <linux/kernel.h>
16#include <linux/slab.h>
17#include <linux/reboot.h>
18#include <linux/init.h>
19#include <linux/utsrelease.h>
20#include <linux/seq_file.h>
21#include <linux/root_dev.h>
22#include <linux/initrd.h>
23#include <linux/timer.h>
24#include <linux/pci.h>
25
26#include <asm/pgtable.h>
27#include <asm/prom.h>
28#include <asm/time.h>
29#include <asm/machdep.h>
30#include <asm/rtas.h>
31#include <asm/of_device.h>
32#include <asm/of_platform.h>
33#include <asm/mpc52xx.h>
34
35#include "efika.h"
36
37static void efika_show_cpuinfo(struct seq_file *m)
38{
39 struct device_node *root;
40 const char *revision = NULL;
41 const char *codegendescription = NULL;
42 const char *codegenvendor = NULL;
43
44 root = of_find_node_by_path("/");
45 if (!root)
46 return;
47
48 revision = get_property(root, "revision", NULL);
49 codegendescription =
50 get_property(root, "CODEGEN,description", NULL);
51 codegenvendor = get_property(root, "CODEGEN,vendor", NULL);
52
53 if (codegendescription)
54 seq_printf(m, "machine\t\t: %s\n", codegendescription);
55 else
56 seq_printf(m, "machine\t\t: Efika\n");
57
58 if (revision)
59 seq_printf(m, "revision\t: %s\n", revision);
60
61 if (codegenvendor)
62 seq_printf(m, "vendor\t\t: %s\n", codegenvendor);
63
64 of_node_put(root);
65}
66
67static void __init efika_setup_arch(void)
68{
69 rtas_initialize();
70
71#ifdef CONFIG_BLK_DEV_INITRD
72 initrd_below_start_ok = 1;
73
74 if (initrd_start)
75 ROOT_DEV = Root_RAM0;
76 else
77#endif
78 ROOT_DEV = Root_SDA2; /* sda2 (sda1 is for the kernel) */
79
80 efika_pcisetup();
81
82 if (ppc_md.progress)
83 ppc_md.progress("Linux/PPC " UTS_RELEASE " running on Efika ;-)\n", 0x0);
84}
85
86static int __init efika_probe(void)
87{
88 char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
89 "model", NULL);
90
91 if (model == NULL)
92 return 0;
93 if (strcmp(model, "EFIKA5K2"))
94 return 0;
95
96 ISA_DMA_THRESHOLD = ~0L;
97 DMA_MODE_READ = 0x44;
98 DMA_MODE_WRITE = 0x48;
99
100 return 1;
101}
102
103define_machine(efika)
104{
105 .name = EFIKA_PLATFORM_NAME,
106 .probe = efika_probe,
107 .setup_arch = efika_setup_arch,
108 .init = mpc52xx_declare_of_platform_devices,
109 .show_cpuinfo = efika_show_cpuinfo,
110 .init_IRQ = mpc52xx_init_irq,
111 .get_irq = mpc52xx_get_irq,
112 .restart = rtas_restart,
113 .power_off = rtas_power_off,
114 .halt = rtas_halt,
115 .set_rtc_time = rtas_set_rtc_time,
116 .get_rtc_time = rtas_get_rtc_time,
117 .progress = rtas_progress,
118 .get_boot_time = rtas_get_boot_time,
119 .calibrate_decr = generic_calibrate_decr,
120 .phys_mem_access_prot = pci_phys_mem_access_prot,
121};
diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c
new file mode 100644
index 000000000000..8de034116681
--- /dev/null
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -0,0 +1,243 @@
1/*
2 * Efika 5K2 platform code
3 * Some code really inspired from the lite5200b platform.
4 *
5 * Copyright (C) 2006 bplan GmbH
6 *
7 * This file is licensed under the terms of the GNU General Public License
8 * version 2. This program is licensed "as is" without any warranty of any
9 * kind, whether express or implied.
10 */
11
12#include <linux/errno.h>
13#include <linux/kernel.h>
14#include <linux/slab.h>
15#include <linux/reboot.h>
16#include <linux/init.h>
17#include <linux/utsrelease.h>
18#include <linux/seq_file.h>
19#include <linux/string.h>
20#include <linux/root_dev.h>
21#include <linux/initrd.h>
22#include <linux/timer.h>
23#include <linux/pci.h>
24
25#include <asm/io.h>
26#include <asm/irq.h>
27#include <asm/sections.h>
28#include <asm/pci-bridge.h>
29#include <asm/pgtable.h>
30#include <asm/prom.h>
31#include <asm/time.h>
32#include <asm/machdep.h>
33#include <asm/rtas.h>
34#include <asm/of_device.h>
35#include <asm/of_platform.h>
36#include <asm/mpc52xx.h>
37
38
39#define EFIKA_PLATFORM_NAME "Efika"
40
41
42/* ------------------------------------------------------------------------ */
43/* PCI accesses thru RTAS */
44/* ------------------------------------------------------------------------ */
45
46#ifdef CONFIG_PCI
47
48/*
49 * Access functions for PCI config space using RTAS calls.
50 */
51static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
52 int len, u32 * val)
53{
54 struct pci_controller *hose = bus->sysdata;
55 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
56 | (((bus->number - hose->first_busno) & 0xff) << 16)
57 | (hose->index << 24);
58 int ret = -1;
59 int rval;
60
61 rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
62 *val = ret;
63 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
64}
65
66static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
67 int offset, int len, u32 val)
68{
69 struct pci_controller *hose = bus->sysdata;
70 unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
71 | (((bus->number - hose->first_busno) & 0xff) << 16)
72 | (hose->index << 24);
73 int rval;
74
75 rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
76 addr, len, val);
77 return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
78}
79
80static struct pci_ops rtas_pci_ops = {
81 rtas_read_config,
82 rtas_write_config
83};
84
85
86void __init efika_pcisetup(void)
87{
88 const int *bus_range;
89 int len;
90 struct pci_controller *hose;
91 struct device_node *root;
92 struct device_node *pcictrl;
93
94 root = of_find_node_by_path("/");
95 if (root == NULL) {
96 printk(KERN_WARNING EFIKA_PLATFORM_NAME
97 ": Unable to find the root node\n");
98 return;
99 }
100
101 for (pcictrl = NULL;;) {
102 pcictrl = of_get_next_child(root, pcictrl);
103 if ((pcictrl == NULL) || (strcmp(pcictrl->name, "pci") == 0))
104 break;
105 }
106
107 of_node_put(root);
108
109 if (pcictrl == NULL) {
110 printk(KERN_WARNING EFIKA_PLATFORM_NAME
111 ": Unable to find the PCI bridge node\n");
112 return;
113 }
114
115 bus_range = get_property(pcictrl, "bus-range", &len);
116 if (bus_range == NULL || len < 2 * sizeof(int)) {
117 printk(KERN_WARNING EFIKA_PLATFORM_NAME
118 ": Can't get bus-range for %s\n", pcictrl->full_name);
119 return;
120 }
121
122 if (bus_range[1] == bus_range[0])
123 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI bus %d",
124 bus_range[0]);
125 else
126 printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
127 bus_range[0], bus_range[1]);
128 printk(" controlled by %s\n", pcictrl->full_name);
129 printk("\n");
130
131 hose = pcibios_alloc_controller();
132 if (!hose) {
133 printk(KERN_WARNING EFIKA_PLATFORM_NAME
134 ": Can't allocate PCI controller structure for %s\n",
135 pcictrl->full_name);
136 return;
137 }
138
139 hose->arch_data = of_node_get(pcictrl);
140 hose->first_busno = bus_range[0];
141 hose->last_busno = bus_range[1];
142 hose->ops = &rtas_pci_ops;
143
144 pci_process_bridge_OF_ranges(hose, pcictrl, 0);
145}
146
147#else
148void __init efika_pcisetup(void)
149{}
150#endif
151
152
153
154/* ------------------------------------------------------------------------ */
155/* Platform setup */
156/* ------------------------------------------------------------------------ */
157
158static void efika_show_cpuinfo(struct seq_file *m)
159{
160 struct device_node *root;
161 const char *revision = NULL;
162 const char *codegendescription = NULL;
163 const char *codegenvendor = NULL;
164
165 root = of_find_node_by_path("/");
166 if (!root)
167 return;
168
169 revision = get_property(root, "revision", NULL);
170 codegendescription =
171 get_property(root, "CODEGEN,description", NULL);
172 codegenvendor = get_property(root, "CODEGEN,vendor", NULL);
173
174 if (codegendescription)
175 seq_printf(m, "machine\t\t: %s\n", codegendescription);
176 else
177 seq_printf(m, "machine\t\t: Efika\n");
178
179 if (revision)
180 seq_printf(m, "revision\t: %s\n", revision);
181
182 if (codegenvendor)
183 seq_printf(m, "vendor\t\t: %s\n", codegenvendor);
184
185 of_node_put(root);
186}
187
188static void __init efika_setup_arch(void)
189{
190 rtas_initialize();
191
192#ifdef CONFIG_BLK_DEV_INITRD
193 initrd_below_start_ok = 1;
194
195 if (initrd_start)
196 ROOT_DEV = Root_RAM0;
197 else
198#endif
199 ROOT_DEV = Root_SDA2; /* sda2 (sda1 is for the kernel) */
200
201 efika_pcisetup();
202
203 if (ppc_md.progress)
204 ppc_md.progress("Linux/PPC " UTS_RELEASE " running on Efika ;-)\n", 0x0);
205}
206
207static int __init efika_probe(void)
208{
209 char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
210 "model", NULL);
211
212 if (model == NULL)
213 return 0;
214 if (strcmp(model, "EFIKA5K2"))
215 return 0;
216
217 ISA_DMA_THRESHOLD = ~0L;
218 DMA_MODE_READ = 0x44;
219 DMA_MODE_WRITE = 0x48;
220
221 return 1;
222}
223
224define_machine(efika)
225{
226 .name = EFIKA_PLATFORM_NAME,
227 .probe = efika_probe,
228 .setup_arch = efika_setup_arch,
229 .init = mpc52xx_declare_of_platform_devices,
230 .show_cpuinfo = efika_show_cpuinfo,
231 .init_IRQ = mpc52xx_init_irq,
232 .get_irq = mpc52xx_get_irq,
233 .restart = rtas_restart,
234 .power_off = rtas_power_off,
235 .halt = rtas_halt,
236 .set_rtc_time = rtas_set_rtc_time,
237 .get_rtc_time = rtas_get_rtc_time,
238 .progress = rtas_progress,
239 .get_boot_time = rtas_get_boot_time,
240 .calibrate_decr = generic_calibrate_decr,
241 .phys_mem_access_prot = pci_phys_mem_access_prot,
242};
243
diff --git a/arch/powerpc/platforms/52xx/efika.h b/arch/powerpc/platforms/52xx/efika.h
deleted file mode 100644
index 2f060fd097d7..000000000000
--- a/arch/powerpc/platforms/52xx/efika.h
+++ /dev/null
@@ -1,19 +0,0 @@
1/*
2 * Efika 5K2 platform setup - Header file
3 *
4 * Copyright (C) 2006 bplan GmbH
5 *
6 * This file is licensed under the terms of the GNU General Public License
7 * version 2. This program is licensed "as is" without any warranty of any
8 * kind, whether express or implied.
9 *
10 */
11
12#ifndef __ARCH_POWERPC_EFIKA__
13#define __ARCH_POWERPC_EFIKA__
14
15#define EFIKA_PLATFORM_NAME "Efika"
16
17extern void __init efika_pcisetup(void);
18
19#endif
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