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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 18:01:29 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 18:01:29 -0400
commit7e2225d860772aaa07e1cebca6a5aa6f93f9aa91 (patch)
tree8a4c3076c2043d011fcf2357835f4f16be7606a7 /arch/mips/txx9/generic/setup.c
parent3a628b0fd42f7eaf9d052447784d48ceae9ffb8e (diff)
parentb27418aa551a153e8bf1bd16cf93e5786f9590a9 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (54 commits) [MIPS] Remove mips_machtype for LASAT machines [MIPS] Remove mips_machtype from EMMA2RH machines [MIPS] Remove mips_machtype from ARC based machines [MIPS] MTX-1 flash partition setup move to platform devices registration [MIPS] TXx9: cleanup and fix some sparse warnings [MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx [MIPS] remove machtype for group Toshiba [MIPS] separate rbtx4927_time_init() and rbtx4937_time_init() [MIPS] separate rbtx4927_arch_init() and rbtx4937_arch_init() [MIPS] txx9_cpu_clock setup move to rbtx4927_time_init() [MIPS] txx9_board_vec set directly without mips_machtype [MIPS] IP22: Add platform device for Indy volume buttons [MIPS] cmbvr4133: Remove support [MIPS] remove wrppmc_machine_power_off() [MIPS] replace inline assembler to cpu_wait() [MIPS] IP22/28: Add platform devices for HAL2 [MIPS] TXx9: Update and merge defconfigs [MIPS] TXx9: Make single kernel can support multiple boards [MIPS] TXx9: Update defconfigs [MIPS] TXx9: Reorganize PCI code ...
Diffstat (limited to 'arch/mips/txx9/generic/setup.c')
-rw-r--r--arch/mips/txx9/generic/setup.c212
1 files changed, 212 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 000000000000..5afc5d5cab03
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,212 @@
1/*
2 * linux/arch/mips/txx9/generic/setup.c
3 *
4 * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
5 * and RBTX49xx patch from CELF patch archive.
6 *
7 * 2003-2005 (c) MontaVista Software, Inc.
8 * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file "COPYING" in the main directory of this archive
12 * for more details.
13 */
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/types.h>
17#include <linux/interrupt.h>
18#include <linux/string.h>
19#include <linux/module.h>
20#include <linux/clk.h>
21#include <linux/err.h>
22#include <asm/bootinfo.h>
23#include <asm/txx9/generic.h>
24#ifdef CONFIG_CPU_TX49XX
25#include <asm/txx9/tx4938.h>
26#endif
27
28/* EBUSC settings of TX4927, etc. */
29struct resource txx9_ce_res[8];
30static char txx9_ce_res_name[8][4]; /* "CEn" */
31
32/* pcode, internal register */
33char txx9_pcode_str[8];
34static struct resource txx9_reg_res = {
35 .name = txx9_pcode_str,
36 .flags = IORESOURCE_MEM,
37};
38void __init
39txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
40{
41 int i;
42
43 for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
44 sprintf(txx9_ce_res_name[i], "CE%d", i);
45 txx9_ce_res[i].flags = IORESOURCE_MEM;
46 txx9_ce_res[i].name = txx9_ce_res_name[i];
47 }
48
49 sprintf(txx9_pcode_str, "TX%x", pcode);
50 if (base) {
51 txx9_reg_res.start = base & 0xfffffffffULL;
52 txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
53 request_resource(&iomem_resource, &txx9_reg_res);
54 }
55}
56
57/* clocks */
58unsigned int txx9_master_clock;
59unsigned int txx9_cpu_clock;
60unsigned int txx9_gbus_clock;
61
62
63/* Minimum CLK support */
64
65struct clk *clk_get(struct device *dev, const char *id)
66{
67 if (!strcmp(id, "spi-baseclk"))
68 return (struct clk *)(txx9_gbus_clock / 2 / 4);
69 if (!strcmp(id, "imbus_clk"))
70 return (struct clk *)(txx9_gbus_clock / 2);
71 return ERR_PTR(-ENOENT);
72}
73EXPORT_SYMBOL(clk_get);
74
75int clk_enable(struct clk *clk)
76{
77 return 0;
78}
79EXPORT_SYMBOL(clk_enable);
80
81void clk_disable(struct clk *clk)
82{
83}
84EXPORT_SYMBOL(clk_disable);
85
86unsigned long clk_get_rate(struct clk *clk)
87{
88 return (unsigned long)clk;
89}
90EXPORT_SYMBOL(clk_get_rate);
91
92void clk_put(struct clk *clk)
93{
94}
95EXPORT_SYMBOL(clk_put);
96
97extern struct txx9_board_vec jmr3927_vec;
98extern struct txx9_board_vec rbtx4927_vec;
99extern struct txx9_board_vec rbtx4937_vec;
100extern struct txx9_board_vec rbtx4938_vec;
101
102struct txx9_board_vec *txx9_board_vec __initdata;
103static char txx9_system_type[32];
104
105void __init prom_init_cmdline(void)
106{
107 int argc = (int)fw_arg0;
108 char **argv = (char **)fw_arg1;
109 int i; /* Always ignore the "-c" at argv[0] */
110
111 /* ignore all built-in args if any f/w args given */
112 if (argc > 1)
113 *arcs_cmdline = '\0';
114
115 for (i = 1; i < argc; i++) {
116 if (i != 1)
117 strcat(arcs_cmdline, " ");
118 strcat(arcs_cmdline, argv[i]);
119 }
120}
121
122void __init prom_init(void)
123{
124#ifdef CONFIG_CPU_TX39XX
125 txx9_board_vec = &jmr3927_vec;
126#endif
127#ifdef CONFIG_CPU_TX49XX
128 switch (TX4938_REV_PCODE()) {
129 case 0x4927:
130 txx9_board_vec = &rbtx4927_vec;
131 break;
132 case 0x4937:
133 txx9_board_vec = &rbtx4937_vec;
134 break;
135 case 0x4938:
136 txx9_board_vec = &rbtx4938_vec;
137 break;
138 }
139#endif
140
141 strcpy(txx9_system_type, txx9_board_vec->system);
142
143 txx9_board_vec->prom_init();
144}
145
146void __init prom_free_prom_memory(void)
147{
148}
149
150const char *get_system_type(void)
151{
152 return txx9_system_type;
153}
154
155char * __init prom_getcmdline(void)
156{
157 return &(arcs_cmdline[0]);
158}
159
160/* wrappers */
161void __init plat_mem_setup(void)
162{
163 txx9_board_vec->mem_setup();
164}
165
166void __init arch_init_irq(void)
167{
168 txx9_board_vec->irq_setup();
169}
170
171void __init plat_time_init(void)
172{
173 txx9_board_vec->time_init();
174}
175
176static int __init _txx9_arch_init(void)
177{
178 if (txx9_board_vec->arch_init)
179 txx9_board_vec->arch_init();
180 return 0;
181}
182arch_initcall(_txx9_arch_init);
183
184static int __init _txx9_device_init(void)
185{
186 if (txx9_board_vec->device_init)
187 txx9_board_vec->device_init();
188 return 0;
189}
190device_initcall(_txx9_device_init);
191
192int (*txx9_irq_dispatch)(int pending);
193asmlinkage void plat_irq_dispatch(void)
194{
195 int pending = read_c0_status() & read_c0_cause() & ST0_IM;
196 int irq = txx9_irq_dispatch(pending);
197
198 if (likely(irq >= 0))
199 do_IRQ(irq);
200 else
201 spurious_interrupt();
202}
203
204/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
205#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
206static unsigned long __swizzle_addr_none(unsigned long port)
207{
208 return port;
209}
210unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
211EXPORT_SYMBOL(__swizzle_addr_b);
212#endif