diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 18:01:29 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 18:01:29 -0400 |
commit | 7e2225d860772aaa07e1cebca6a5aa6f93f9aa91 (patch) | |
tree | 8a4c3076c2043d011fcf2357835f4f16be7606a7 /arch/mips/txx9/generic/setup.c | |
parent | 3a628b0fd42f7eaf9d052447784d48ceae9ffb8e (diff) | |
parent | b27418aa551a153e8bf1bd16cf93e5786f9590a9 (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.c | 212 |
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. */ | ||
29 | struct resource txx9_ce_res[8]; | ||
30 | static char txx9_ce_res_name[8][4]; /* "CEn" */ | ||
31 | |||
32 | /* pcode, internal register */ | ||
33 | char txx9_pcode_str[8]; | ||
34 | static struct resource txx9_reg_res = { | ||
35 | .name = txx9_pcode_str, | ||
36 | .flags = IORESOURCE_MEM, | ||
37 | }; | ||
38 | void __init | ||
39 | txx9_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 */ | ||
58 | unsigned int txx9_master_clock; | ||
59 | unsigned int txx9_cpu_clock; | ||
60 | unsigned int txx9_gbus_clock; | ||
61 | |||
62 | |||
63 | /* Minimum CLK support */ | ||
64 | |||
65 | struct 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 | } | ||
73 | EXPORT_SYMBOL(clk_get); | ||
74 | |||
75 | int clk_enable(struct clk *clk) | ||
76 | { | ||
77 | return 0; | ||
78 | } | ||
79 | EXPORT_SYMBOL(clk_enable); | ||
80 | |||
81 | void clk_disable(struct clk *clk) | ||
82 | { | ||
83 | } | ||
84 | EXPORT_SYMBOL(clk_disable); | ||
85 | |||
86 | unsigned long clk_get_rate(struct clk *clk) | ||
87 | { | ||
88 | return (unsigned long)clk; | ||
89 | } | ||
90 | EXPORT_SYMBOL(clk_get_rate); | ||
91 | |||
92 | void clk_put(struct clk *clk) | ||
93 | { | ||
94 | } | ||
95 | EXPORT_SYMBOL(clk_put); | ||
96 | |||
97 | extern struct txx9_board_vec jmr3927_vec; | ||
98 | extern struct txx9_board_vec rbtx4927_vec; | ||
99 | extern struct txx9_board_vec rbtx4937_vec; | ||
100 | extern struct txx9_board_vec rbtx4938_vec; | ||
101 | |||
102 | struct txx9_board_vec *txx9_board_vec __initdata; | ||
103 | static char txx9_system_type[32]; | ||
104 | |||
105 | void __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 | |||
122 | void __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 | |||
146 | void __init prom_free_prom_memory(void) | ||
147 | { | ||
148 | } | ||
149 | |||
150 | const char *get_system_type(void) | ||
151 | { | ||
152 | return txx9_system_type; | ||
153 | } | ||
154 | |||
155 | char * __init prom_getcmdline(void) | ||
156 | { | ||
157 | return &(arcs_cmdline[0]); | ||
158 | } | ||
159 | |||
160 | /* wrappers */ | ||
161 | void __init plat_mem_setup(void) | ||
162 | { | ||
163 | txx9_board_vec->mem_setup(); | ||
164 | } | ||
165 | |||
166 | void __init arch_init_irq(void) | ||
167 | { | ||
168 | txx9_board_vec->irq_setup(); | ||
169 | } | ||
170 | |||
171 | void __init plat_time_init(void) | ||
172 | { | ||
173 | txx9_board_vec->time_init(); | ||
174 | } | ||
175 | |||
176 | static int __init _txx9_arch_init(void) | ||
177 | { | ||
178 | if (txx9_board_vec->arch_init) | ||
179 | txx9_board_vec->arch_init(); | ||
180 | return 0; | ||
181 | } | ||
182 | arch_initcall(_txx9_arch_init); | ||
183 | |||
184 | static int __init _txx9_device_init(void) | ||
185 | { | ||
186 | if (txx9_board_vec->device_init) | ||
187 | txx9_board_vec->device_init(); | ||
188 | return 0; | ||
189 | } | ||
190 | device_initcall(_txx9_device_init); | ||
191 | |||
192 | int (*txx9_irq_dispatch)(int pending); | ||
193 | asmlinkage 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 | ||
206 | static unsigned long __swizzle_addr_none(unsigned long port) | ||
207 | { | ||
208 | return port; | ||
209 | } | ||
210 | unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none; | ||
211 | EXPORT_SYMBOL(__swizzle_addr_b); | ||
212 | #endif | ||