diff options
Diffstat (limited to 'arch/sh64/mach-romram/setup.c')
-rw-r--r-- | arch/sh64/mach-romram/setup.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/arch/sh64/mach-romram/setup.c b/arch/sh64/mach-romram/setup.c new file mode 100644 index 000000000000..a9ba03fc5bed --- /dev/null +++ b/arch/sh64/mach-romram/setup.c | |||
@@ -0,0 +1,142 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file "COPYING" in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * arch/sh64/mach-romram/setup.c | ||
7 | * | ||
8 | * SH-5 ROM/RAM Platform Support | ||
9 | * | ||
10 | * This file handles the architecture-dependent parts of initialization | ||
11 | * | ||
12 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
13 | * | ||
14 | * benedict.gaster@superh.com: 3rd May 2002 | ||
15 | * Added support for ramdisk, removing statically linked romfs at the same time. * | ||
16 | * | ||
17 | * lethal@linux-sh.org: 15th May 2003 | ||
18 | * Use the generic procfs cpuinfo interface, just return a valid board name. | ||
19 | * | ||
20 | * Sean.McGoogan@superh.com 17th Feb 2004 | ||
21 | * copied from arch/sh64/mach-harp/setup.c | ||
22 | */ | ||
23 | |||
24 | #include <linux/stddef.h> | ||
25 | #include <linux/init.h> | ||
26 | #include <linux/config.h> | ||
27 | #include <linux/mm.h> | ||
28 | #include <linux/bootmem.h> | ||
29 | #include <linux/delay.h> | ||
30 | #include <linux/kernel.h> | ||
31 | #include <asm/processor.h> | ||
32 | #include <asm/platform.h> | ||
33 | #include <asm/io.h> | ||
34 | #include <asm/irq.h> | ||
35 | #include <asm/page.h> | ||
36 | |||
37 | #define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource))) | ||
38 | |||
39 | /* | ||
40 | * Platform Dependent Interrupt Priorities. | ||
41 | */ | ||
42 | |||
43 | /* Using defaults defined in irq.h */ | ||
44 | #define RES NO_PRIORITY /* Disabled */ | ||
45 | #define IR0 IRL0_PRIORITY /* IRLs */ | ||
46 | #define IR1 IRL1_PRIORITY | ||
47 | #define IR2 IRL2_PRIORITY | ||
48 | #define IR3 IRL3_PRIORITY | ||
49 | #define PCA INTA_PRIORITY /* PCI Ints */ | ||
50 | #define PCB INTB_PRIORITY | ||
51 | #define PCC INTC_PRIORITY | ||
52 | #define PCD INTD_PRIORITY | ||
53 | #define SER TOP_PRIORITY | ||
54 | #define ERR TOP_PRIORITY | ||
55 | #define PW0 TOP_PRIORITY | ||
56 | #define PW1 TOP_PRIORITY | ||
57 | #define PW2 TOP_PRIORITY | ||
58 | #define PW3 TOP_PRIORITY | ||
59 | #define DM0 NO_PRIORITY /* DMA Ints */ | ||
60 | #define DM1 NO_PRIORITY | ||
61 | #define DM2 NO_PRIORITY | ||
62 | #define DM3 NO_PRIORITY | ||
63 | #define DAE NO_PRIORITY | ||
64 | #define TU0 TIMER_PRIORITY /* TMU Ints */ | ||
65 | #define TU1 NO_PRIORITY | ||
66 | #define TU2 NO_PRIORITY | ||
67 | #define TI2 NO_PRIORITY | ||
68 | #define ATI NO_PRIORITY /* RTC Ints */ | ||
69 | #define PRI NO_PRIORITY | ||
70 | #define CUI RTC_PRIORITY | ||
71 | #define ERI SCIF_PRIORITY /* SCIF Ints */ | ||
72 | #define RXI SCIF_PRIORITY | ||
73 | #define BRI SCIF_PRIORITY | ||
74 | #define TXI SCIF_PRIORITY | ||
75 | #define ITI TOP_PRIORITY /* WDT Ints */ | ||
76 | |||
77 | /* | ||
78 | * Platform dependent structures: maps and parms block. | ||
79 | */ | ||
80 | struct resource io_resources[] = { | ||
81 | /* To be updated with external devices */ | ||
82 | }; | ||
83 | |||
84 | struct resource kram_resources[] = { | ||
85 | { "Kernel code", 0, 0 }, /* These must be last in the array */ | ||
86 | { "Kernel data", 0, 0 } /* These must be last in the array */ | ||
87 | }; | ||
88 | |||
89 | struct resource xram_resources[] = { | ||
90 | /* To be updated with external devices */ | ||
91 | }; | ||
92 | |||
93 | struct resource rom_resources[] = { | ||
94 | /* To be updated with external devices */ | ||
95 | }; | ||
96 | |||
97 | struct sh64_platform platform_parms = { | ||
98 | .readonly_rootfs = 1, | ||
99 | .initial_root_dev = 0x0100, | ||
100 | .loader_type = 1, | ||
101 | .io_res_p = io_resources, | ||
102 | .io_res_count = RES_COUNT(io_resources), | ||
103 | .kram_res_p = kram_resources, | ||
104 | .kram_res_count = RES_COUNT(kram_resources), | ||
105 | .xram_res_p = xram_resources, | ||
106 | .xram_res_count = RES_COUNT(xram_resources), | ||
107 | .rom_res_p = rom_resources, | ||
108 | .rom_res_count = RES_COUNT(rom_resources), | ||
109 | }; | ||
110 | |||
111 | int platform_int_priority[NR_INTC_IRQS] = { | ||
112 | IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD, /* IRQ 0- 7 */ | ||
113 | RES, RES, RES, RES, SER, ERR, PW3, PW2, /* IRQ 8-15 */ | ||
114 | PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES, /* IRQ 16-23 */ | ||
115 | RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 24-31 */ | ||
116 | TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI, /* IRQ 32-39 */ | ||
117 | RXI, BRI, TXI, RES, RES, RES, RES, RES, /* IRQ 40-47 */ | ||
118 | RES, RES, RES, RES, RES, RES, RES, RES, /* IRQ 48-55 */ | ||
119 | RES, RES, RES, RES, RES, RES, RES, ITI, /* IRQ 56-63 */ | ||
120 | }; | ||
121 | |||
122 | void __init platform_setup(void) | ||
123 | { | ||
124 | /* ROM/RAM platform leaves the decision to head.S, for now */ | ||
125 | platform_parms.fpu_flags = fpu_in_use; | ||
126 | } | ||
127 | |||
128 | void __init platform_monitor(void) | ||
129 | { | ||
130 | /* Nothing yet .. */ | ||
131 | } | ||
132 | |||
133 | void __init platform_reserve(void) | ||
134 | { | ||
135 | /* Nothing yet .. */ | ||
136 | } | ||
137 | |||
138 | const char *get_system_type(void) | ||
139 | { | ||
140 | return "ROM/RAM"; | ||
141 | } | ||
142 | |||