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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/mach-sa1100/collie.c | |
3 | * | |
4 | * May be copied or modified under the terms of the GNU General Public | |
5 | * License. See linux/COPYING for more information. | |
6 | * | |
7 | * This file contains all Collie-specific tweaks. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * ChangeLog: | |
14 | * 03-06-2004 John Lenz <jelenz@wisc.edu> | |
15 | * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> | |
16 | * 04-16-2001 Lineo Japan,Inc. ... | |
17 | */ | |
18 | ||
19 | #include <linux/config.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/tty.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/device.h> | |
25 | #include <linux/mtd/mtd.h> | |
26 | #include <linux/mtd/partitions.h> | |
27 | #include <linux/timer.h> | |
28 | ||
29 | #include <asm/hardware.h> | |
30 | #include <asm/mach-types.h> | |
31 | #include <asm/irq.h> | |
32 | #include <asm/setup.h> | |
33 | #include <asm/arch/collie.h> | |
34 | ||
35 | #include <asm/mach/arch.h> | |
36 | #include <asm/mach/flash.h> | |
37 | #include <asm/mach/map.h> | |
38 | #include <asm/mach/serial_sa1100.h> | |
39 | ||
40 | #include <asm/hardware/scoop.h> | |
41 | #include <asm/mach/sharpsl_param.h> | |
42 | #include <asm/hardware/locomo.h> | |
43 | ||
44 | #include "generic.h" | |
45 | ||
46 | static struct resource collie_scoop_resources[] = { | |
47 | [0] = { | |
48 | .start = 0x40800000, | |
49 | .end = 0x40800fff, | |
50 | .flags = IORESOURCE_MEM, | |
51 | }, | |
52 | }; | |
53 | ||
54 | static struct scoop_config collie_scoop_setup = { | |
55 | .io_dir = COLLIE_SCOOP_IO_DIR, | |
56 | .io_out = COLLIE_SCOOP_IO_OUT, | |
57 | }; | |
58 | ||
59 | struct platform_device colliescoop_device = { | |
60 | .name = "sharp-scoop", | |
61 | .id = -1, | |
62 | .dev = { | |
63 | .platform_data = &collie_scoop_setup, | |
64 | }, | |
65 | .num_resources = ARRAY_SIZE(collie_scoop_resources), | |
66 | .resource = collie_scoop_resources, | |
67 | }; | |
68 | ||
69 | ||
70 | static struct resource locomo_resources[] = { | |
71 | [0] = { | |
72 | .start = 0x40000000, | |
73 | .end = 0x40001fff, | |
74 | .flags = IORESOURCE_MEM, | |
75 | }, | |
76 | [1] = { | |
77 | .start = IRQ_GPIO25, | |
78 | .end = IRQ_GPIO25, | |
79 | .flags = IORESOURCE_IRQ, | |
80 | }, | |
81 | }; | |
82 | ||
83 | static struct platform_device locomo_device = { | |
84 | .name = "locomo", | |
85 | .id = 0, | |
86 | .num_resources = ARRAY_SIZE(locomo_resources), | |
87 | .resource = locomo_resources, | |
88 | }; | |
89 | ||
90 | static struct platform_device *devices[] __initdata = { | |
91 | &locomo_device, | |
92 | &colliescoop_device, | |
93 | }; | |
94 | ||
95 | static struct mtd_partition collie_partitions[] = { | |
96 | { | |
97 | .name = "bootloader", | |
98 | .offset = 0, | |
99 | .size = 0x000C0000, | |
100 | .mask_flags = MTD_WRITEABLE | |
101 | }, { | |
102 | .name = "kernel", | |
103 | .offset = MTDPART_OFS_APPEND, | |
104 | .size = 0x00100000, | |
105 | }, { | |
106 | .name = "rootfs", | |
107 | .offset = MTDPART_OFS_APPEND, | |
108 | .size = 0x00e20000, | |
109 | } | |
110 | }; | |
111 | ||
112 | static void collie_set_vpp(int vpp) | |
113 | { | |
114 | write_scoop_reg(SCOOP_GPCR, read_scoop_reg(SCOOP_GPCR) | COLLIE_SCP_VPEN); | |
115 | if (vpp) { | |
116 | write_scoop_reg(SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) | COLLIE_SCP_VPEN); | |
117 | } else { | |
118 | write_scoop_reg(SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) & ~COLLIE_SCP_VPEN); | |
119 | } | |
120 | } | |
121 | ||
122 | static struct flash_platform_data collie_flash_data = { | |
123 | .map_name = "cfi_probe", | |
124 | .set_vpp = collie_set_vpp, | |
125 | .parts = collie_partitions, | |
126 | .nr_parts = ARRAY_SIZE(collie_partitions), | |
127 | }; | |
128 | ||
129 | static struct resource collie_flash_resources[] = { | |
130 | { | |
131 | .start = SA1100_CS0_PHYS, | |
132 | .end = SA1100_CS0_PHYS + SZ_32M - 1, | |
133 | .flags = IORESOURCE_MEM, | |
134 | } | |
135 | }; | |
136 | ||
137 | static void __init collie_init(void) | |
138 | { | |
139 | int ret = 0; | |
140 | ||
141 | /* cpu initialize */ | |
142 | GAFR = ( GPIO_SSP_TXD | \ | |
143 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \ | |
144 | GPIO_32_768kHz ); | |
145 | ||
146 | GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \ | |
147 | GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \ | |
148 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \ | |
149 | GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz ); | |
150 | GPLR = GPIO_GPIO18; | |
151 | ||
152 | // PPC pin setting | |
153 | PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \ | |
154 | PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \ | |
155 | PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM ); | |
156 | ||
157 | PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 ); | |
158 | ||
159 | GAFR |= GPIO_32_768kHz; | |
160 | GPDR |= GPIO_32_768kHz; | |
161 | TUCR = TUCR_32_768kHz; | |
162 | ||
163 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); | |
164 | if (ret) { | |
165 | printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); | |
166 | } | |
167 | ||
168 | sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources, | |
169 | ARRAY_SIZE(collie_flash_resources)); | |
170 | ||
171 | sharpsl_save_param(); | |
172 | } | |
173 | ||
174 | static struct map_desc collie_io_desc[] __initdata = { | |
175 | /* virtual physical length type */ | |
176 | {0xe8000000, 0x00000000, 0x02000000, MT_DEVICE}, /* 32M main flash (cs0) */ | |
177 | {0xea000000, 0x08000000, 0x02000000, MT_DEVICE}, /* 32M boot flash (cs1) */ | |
178 | }; | |
179 | ||
180 | static void __init collie_map_io(void) | |
181 | { | |
182 | sa1100_map_io(); | |
183 | iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); | |
184 | } | |
185 | ||
186 | MACHINE_START(COLLIE, "Sharp-Collie") | |
e9dea0c6 RK |
187 | .phys_ram = 0xc0000000, |
188 | .phys_io = 0x80000000, | |
189 | .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, | |
190 | .map_io = collie_map_io, | |
191 | .init_irq = sa1100_init_irq, | |
1da177e4 LT |
192 | .timer = &sa1100_timer, |
193 | .init_machine = collie_init, | |
194 | MACHINE_END |