Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6] / arch / sh / boards / mach-r2d / setup.c
1 /*
2  * Renesas Technology Sales RTS7751R2D Support.
3  *
4  * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
5  * Copyright (C) 2004 - 2007 Paul Mundt
6  *
7  * This file is subject to the terms and conditions of the GNU General Public
8  * License.  See the file "COPYING" in the main directory of this archive
9  * for more details.
10  */
11 #include <linux/init.h>
12 #include <linux/platform_device.h>
13 #include <linux/ata_platform.h>
14 #include <linux/sm501.h>
15 #include <linux/sm501-regs.h>
16 #include <linux/pm.h>
17 #include <linux/fb.h>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/spi_bitbang.h>
20 #include <asm/machvec.h>
21 #include <mach/r2d.h>
22 #include <asm/io.h>
23 #include <asm/io_trapped.h>
24 #include <asm/spi.h>
25
26 static struct resource cf_ide_resources[] = {
27         [0] = {
28                 .start  = PA_AREA5_IO + 0x1000,
29                 .end    = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
30                 .flags  = IORESOURCE_MEM,
31         },
32         [1] = {
33                 .start  = PA_AREA5_IO + 0x80c,
34                 .end    = PA_AREA5_IO + 0x80c,
35                 .flags  = IORESOURCE_MEM,
36         },
37 #ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
38         [2] = {
39                 .start  = IRQ_CF_IDE,
40                 .flags  = IORESOURCE_IRQ,
41         },
42 #endif
43 };
44
45 static struct pata_platform_info pata_info = {
46         .ioport_shift   = 1,
47 };
48
49 static struct platform_device cf_ide_device  = {
50         .name           = "pata_platform",
51         .id             = -1,
52         .num_resources  = ARRAY_SIZE(cf_ide_resources),
53         .resource       = cf_ide_resources,
54         .dev    = {
55                 .platform_data  = &pata_info,
56         },
57 };
58
59 static struct spi_board_info spi_bus[] = {
60         {
61                 .modalias       = "rtc-r9701",
62                 .max_speed_hz   = 1000000,
63                 .mode           = SPI_MODE_3,
64         },
65 };
66
67 static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
68 {
69         BUG_ON(cs != 0);  /* Single Epson RTC-9701JE attached on CS0 */
70         ctrl_outw(state == BITBANG_CS_ACTIVE, PA_RTCCE);
71 }
72
73 static struct sh_spi_info spi_info = {
74         .num_chipselect = 1,
75         .chip_select = r2d_chip_select,
76 };
77
78 static struct resource spi_sh_sci_resources[] = {
79         {
80                 .start  = 0xffe00000,
81                 .end    = 0xffe0001f,
82                 .flags  = IORESOURCE_MEM,
83         },
84 };
85
86 static struct platform_device spi_sh_sci_device  = {
87         .name           = "spi_sh_sci",
88         .id             = -1,
89         .num_resources  = ARRAY_SIZE(spi_sh_sci_resources),
90         .resource       = spi_sh_sci_resources,
91         .dev    = {
92                 .platform_data  = &spi_info,
93         },
94 };
95
96 static struct resource heartbeat_resources[] = {
97         [0] = {
98                 .start  = PA_OUTPORT,
99                 .end    = PA_OUTPORT,
100                 .flags  = IORESOURCE_MEM,
101         },
102 };
103
104 static struct platform_device heartbeat_device = {
105         .name           = "heartbeat",
106         .id             = -1,
107         .num_resources  = ARRAY_SIZE(heartbeat_resources),
108         .resource       = heartbeat_resources,
109 };
110
111 static struct resource sm501_resources[] = {
112         [0]     = {
113                 .start  = 0x10000000,
114                 .end    = 0x13e00000 - 1,
115                 .flags  = IORESOURCE_MEM,
116         },
117         [1]     = {
118                 .start  = 0x13e00000,
119                 .end    = 0x13ffffff,
120                 .flags  = IORESOURCE_MEM,
121         },
122         [2]     = {
123                 .start  = IRQ_VOYAGER,
124                 .flags  = IORESOURCE_IRQ,
125         },
126 };
127
128 static struct fb_videomode sm501_default_mode = {
129         .pixclock       = 35714,
130         .xres           = 640,
131         .yres           = 480,
132         .left_margin    = 105,
133         .right_margin   = 50,
134         .upper_margin   = 35,
135         .lower_margin   = 0,
136         .hsync_len      = 96,
137         .vsync_len      = 2,
138         .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
139 };
140
141 static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
142         .def_bpp        = 16,
143         .def_mode       = &sm501_default_mode,
144         .flags          = SM501FB_FLAG_USE_INIT_MODE |
145                           SM501FB_FLAG_USE_HWCURSOR |
146                           SM501FB_FLAG_USE_HWACCEL |
147                           SM501FB_FLAG_DISABLE_AT_EXIT,
148 };
149
150 static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
151         .flags          = (SM501FB_FLAG_USE_INIT_MODE |
152                            SM501FB_FLAG_USE_HWCURSOR |
153                            SM501FB_FLAG_USE_HWACCEL |
154                            SM501FB_FLAG_DISABLE_AT_EXIT),
155
156 };
157
158 static struct sm501_platdata_fb sm501_fb_pdata = {
159         .fb_route       = SM501_FB_OWN,
160         .fb_crt         = &sm501_pdata_fbsub_crt,
161         .fb_pnl         = &sm501_pdata_fbsub_pnl,
162         .flags          = SM501_FBPD_SWAP_FB_ENDIAN,
163 };
164
165 static struct sm501_initdata sm501_initdata = {
166         .devices        = SM501_USE_USB_HOST | SM501_USE_UART0,
167 };
168
169 static struct sm501_platdata sm501_platform_data = {
170         .init           = &sm501_initdata,
171         .fb             = &sm501_fb_pdata,
172 };
173
174 static struct platform_device sm501_device = {
175         .name           = "sm501",
176         .id             = -1,
177         .dev            = {
178                 .platform_data  = &sm501_platform_data,
179         },
180         .num_resources  = ARRAY_SIZE(sm501_resources),
181         .resource       = sm501_resources,
182 };
183
184 static struct platform_device *rts7751r2d_devices[] __initdata = {
185         &sm501_device,
186         &heartbeat_device,
187         &spi_sh_sci_device,
188 };
189
190 /*
191  * The CF is connected with a 16-bit bus where 8-bit operations are
192  * unsupported. The linux ata driver is however using 8-bit operations, so
193  * insert a trapped io filter to convert 8-bit operations into 16-bit.
194  */
195 static struct trapped_io cf_trapped_io = {
196         .resource               = cf_ide_resources,
197         .num_resources          = 2,
198         .minimum_bus_width      = 16,
199 };
200
201 static int __init rts7751r2d_devices_setup(void)
202 {
203         if (register_trapped_io(&cf_trapped_io) == 0)
204                 platform_device_register(&cf_ide_device);
205
206         spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
207
208         return platform_add_devices(rts7751r2d_devices,
209                                     ARRAY_SIZE(rts7751r2d_devices));
210 }
211 __initcall(rts7751r2d_devices_setup);
212
213 static void rts7751r2d_power_off(void)
214 {
215         ctrl_outw(0x0001, PA_POWOFF);
216 }
217
218 /*
219  * Initialize the board
220  */
221 static void __init rts7751r2d_setup(char **cmdline_p)
222 {
223         void __iomem *sm501_reg;
224         u16 ver = ctrl_inw(PA_VERREG);
225
226         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
227
228         printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
229                                         (ver >> 4) & 0xf, ver & 0xf);
230
231         ctrl_outw(0x0000, PA_OUTPORT);
232         pm_power_off = rts7751r2d_power_off;
233
234         /* sm501 dram configuration:
235          * ColSizeX = 11 - External Memory Column Size: 256 words.
236          * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
237          * RstX = 1 - External Memory Reset: Normal.
238          * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
239          * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
240          * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
241          * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
242          * Rst = 1 - Internal Memory Reset: Normal.
243          * RA = 1 - Internal Memory Remain in Active State: Do not remain.
244          */
245
246         sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
247         writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
248 }
249
250 /*
251  * The Machine Vector
252  */
253 static struct sh_machine_vector mv_rts7751r2d __initmv = {
254         .mv_name                = "RTS7751R2D",
255         .mv_setup               = rts7751r2d_setup,
256         .mv_init_irq            = init_rts7751r2d_IRQ,
257         .mv_irq_demux           = rts7751r2d_irq_demux,
258 };