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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/mtd/mtd.h>
14#include <linux/mtd/partitions.h>
15#include <linux/mtd/physmap.h>
16#include <linux/ata_platform.h>
17#include <linux/sm501.h>
18#include <linux/sm501-regs.h>
19#include <linux/pm.h>
20#include <linux/fb.h>
21#include <linux/spi/spi.h>
22#include <linux/spi/spi_bitbang.h>
23#include <asm/machvec.h>
24#include <mach/r2d.h>
25#include <asm/io.h>
26#include <asm/io_trapped.h>
27#include <asm/spi.h>
28
29static struct resource cf_ide_resources[] = {
30 [0] = {
31 .start = PA_AREA5_IO + 0x1000,
32 .end = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
33 .flags = IORESOURCE_MEM,
34 },
35 [1] = {
36 .start = PA_AREA5_IO + 0x80c,
37 .end = PA_AREA5_IO + 0x80c,
38 .flags = IORESOURCE_MEM,
39 },
40#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
41 [2] = {
42 .start = IRQ_CF_IDE,
43 .flags = IORESOURCE_IRQ,
44 },
45#endif
46};
47
48static struct pata_platform_info pata_info = {
49 .ioport_shift = 1,
50};
51
52static struct platform_device cf_ide_device = {
53 .name = "pata_platform",
54 .id = -1,
55 .num_resources = ARRAY_SIZE(cf_ide_resources),
56 .resource = cf_ide_resources,
57 .dev = {
58 .platform_data = &pata_info,
59 },
60};
61
62static struct spi_board_info spi_bus[] = {
63 {
64 .modalias = "rtc-r9701",
65 .max_speed_hz = 1000000,
66 .mode = SPI_MODE_3,
67 },
68};
69
70static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
71{
72 BUG_ON(cs != 0); /* Single Epson RTC-9701JE attached on CS0 */
73 __raw_writew(state == BITBANG_CS_ACTIVE, PA_RTCCE);
74}
75
76static struct sh_spi_info spi_info = {
77 .num_chipselect = 1,
78 .chip_select = r2d_chip_select,
79};
80
81static struct resource spi_sh_sci_resources[] = {
82 {
83 .start = 0xffe00000,
84 .end = 0xffe0001f,
85 .flags = IORESOURCE_MEM,
86 },
87};
88
89static struct platform_device spi_sh_sci_device = {
90 .name = "spi_sh_sci",
91 .id = -1,
92 .num_resources = ARRAY_SIZE(spi_sh_sci_resources),
93 .resource = spi_sh_sci_resources,
94 .dev = {
95 .platform_data = &spi_info,
96 },
97};
98
99static struct resource heartbeat_resources[] = {
100 [0] = {
101 .start = PA_OUTPORT,
102 .end = PA_OUTPORT,
103 .flags = IORESOURCE_MEM,
104 },
105};
106
107static struct platform_device heartbeat_device = {
108 .name = "heartbeat",
109 .id = -1,
110 .num_resources = ARRAY_SIZE(heartbeat_resources),
111 .resource = heartbeat_resources,
112};
113
114static struct resource sm501_resources[] = {
115 [0] = {
116 .start = 0x10000000,
117 .end = 0x13e00000 - 1,
118 .flags = IORESOURCE_MEM,
119 },
120 [1] = {
121 .start = 0x13e00000,
122 .end = 0x13ffffff,
123 .flags = IORESOURCE_MEM,
124 },
125 [2] = {
126 .start = IRQ_VOYAGER,
127 .flags = IORESOURCE_IRQ,
128 },
129};
130
131static struct fb_videomode sm501_default_mode = {
132 .pixclock = 35714,
133 .xres = 640,
134 .yres = 480,
135 .left_margin = 105,
136 .right_margin = 50,
137 .upper_margin = 35,
138 .lower_margin = 0,
139 .hsync_len = 96,
140 .vsync_len = 2,
141 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
142};
143
144static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
145 .def_bpp = 16,
146 .def_mode = &sm501_default_mode,
147 .flags = SM501FB_FLAG_USE_INIT_MODE |
148 SM501FB_FLAG_USE_HWCURSOR |
149 SM501FB_FLAG_USE_HWACCEL |
150 SM501FB_FLAG_DISABLE_AT_EXIT,
151};
152
153static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
154 .flags = (SM501FB_FLAG_USE_INIT_MODE |
155 SM501FB_FLAG_USE_HWCURSOR |
156 SM501FB_FLAG_USE_HWACCEL |
157 SM501FB_FLAG_DISABLE_AT_EXIT),
158
159};
160
161static struct sm501_platdata_fb sm501_fb_pdata = {
162 .fb_route = SM501_FB_OWN,
163 .fb_crt = &sm501_pdata_fbsub_crt,
164 .fb_pnl = &sm501_pdata_fbsub_pnl,
165 .flags = SM501_FBPD_SWAP_FB_ENDIAN,
166};
167
168static struct sm501_initdata sm501_initdata = {
169 .devices = SM501_USE_USB_HOST | SM501_USE_UART0,
170};
171
172static struct sm501_platdata sm501_platform_data = {
173 .init = &sm501_initdata,
174 .fb = &sm501_fb_pdata,
175};
176
177static struct platform_device sm501_device = {
178 .name = "sm501",
179 .id = -1,
180 .dev = {
181 .platform_data = &sm501_platform_data,
182 },
183 .num_resources = ARRAY_SIZE(sm501_resources),
184 .resource = sm501_resources,
185};
186
187static struct mtd_partition r2d_partitions[] = {
188 {
189 .name = "U-Boot",
190 .offset = 0x00000000,
191 .size = 0x00040000,
192 .mask_flags = MTD_WRITEABLE,
193 }, {
194 .name = "Environment",
195 .offset = MTDPART_OFS_NXTBLK,
196 .size = 0x00040000,
197 .mask_flags = MTD_WRITEABLE,
198 }, {
199 .name = "Kernel",
200 .offset = MTDPART_OFS_NXTBLK,
201 .size = 0x001c0000,
202 }, {
203 .name = "Flash_FS",
204 .offset = MTDPART_OFS_NXTBLK,
205 .size = MTDPART_SIZ_FULL,
206 }
207};
208
209static struct physmap_flash_data flash_data = {
210 .width = 2,
211 .nr_parts = ARRAY_SIZE(r2d_partitions),
212 .parts = r2d_partitions,
213};
214
215static struct resource flash_resource = {
216 .start = 0x00000000,
217 .end = 0x02000000,
218 .flags = IORESOURCE_MEM,
219};
220
221static struct platform_device flash_device = {
222 .name = "physmap-flash",
223 .id = -1,
224 .resource = &flash_resource,
225 .num_resources = 1,
226 .dev = {
227 .platform_data = &flash_data,
228 },
229};
230
231static struct platform_device *rts7751r2d_devices[] __initdata = {
232 &sm501_device,
233 &heartbeat_device,
234 &spi_sh_sci_device,
235};
236
237/*
238 * The CF is connected with a 16-bit bus where 8-bit operations are
239 * unsupported. The linux ata driver is however using 8-bit operations, so
240 * insert a trapped io filter to convert 8-bit operations into 16-bit.
241 */
242static struct trapped_io cf_trapped_io = {
243 .resource = cf_ide_resources,
244 .num_resources = 2,
245 .minimum_bus_width = 16,
246};
247
248static int __init rts7751r2d_devices_setup(void)
249{
250 if (register_trapped_io(&cf_trapped_io) == 0)
251 platform_device_register(&cf_ide_device);
252
253 if (mach_is_r2d_plus())
254 platform_device_register(&flash_device);
255
256 spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
257
258 return platform_add_devices(rts7751r2d_devices,
259 ARRAY_SIZE(rts7751r2d_devices));
260}
261device_initcall(rts7751r2d_devices_setup);
262
263static void rts7751r2d_power_off(void)
264{
265 __raw_writew(0x0001, PA_POWOFF);
266}
267
268/*
269 * Initialize the board
270 */
271static void __init rts7751r2d_setup(char **cmdline_p)
272{
273 void __iomem *sm501_reg;
274 u16 ver = __raw_readw(PA_VERREG);
275
276 printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
277
278 printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
279 (ver >> 4) & 0xf, ver & 0xf);
280
281 __raw_writew(0x0000, PA_OUTPORT);
282 pm_power_off = rts7751r2d_power_off;
283
284 /* sm501 dram configuration:
285 * ColSizeX = 11 - External Memory Column Size: 256 words.
286 * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
287 * RstX = 1 - External Memory Reset: Normal.
288 * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
289 * BwC = 1 - Local Memory Block Write Cycle Time: 2 clocks.
290 * BwP = 1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
291 * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
292 * Rst = 1 - Internal Memory Reset: Normal.
293 * RA = 1 - Internal Memory Remain in Active State: Do not remain.
294 */
295
296 sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
297 writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
298}
299
300/*
301 * The Machine Vector
302 */
303static struct sh_machine_vector mv_rts7751r2d __initmv = {
304 .mv_name = "RTS7751R2D",
305 .mv_setup = rts7751r2d_setup,
306 .mv_init_irq = init_rts7751r2d_IRQ,
307 .mv_irq_demux = rts7751r2d_irq_demux,
308};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Renesas Technology Sales RTS7751R2D Support.
4 *
5 * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
6 * Copyright (C) 2004 - 2007 Paul Mundt
7 */
8#include <linux/init.h>
9#include <linux/platform_device.h>
10#include <linux/mtd/mtd.h>
11#include <linux/mtd/partitions.h>
12#include <linux/mtd/physmap.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
26static 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
45static struct pata_platform_info pata_info = {
46 .ioport_shift = 1,
47};
48
49static 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
59static struct spi_board_info spi_bus[] = {
60 {
61 .modalias = "rtc-r9701",
62 .max_speed_hz = 1000000,
63 .mode = SPI_MODE_3,
64 },
65};
66
67static 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 __raw_writew(state == BITBANG_CS_ACTIVE, PA_RTCCE);
71}
72
73static struct sh_spi_info spi_info = {
74 .num_chipselect = 1,
75 .chip_select = r2d_chip_select,
76};
77
78static struct resource spi_sh_sci_resources[] = {
79 {
80 .start = 0xffe00000,
81 .end = 0xffe0001f,
82 .flags = IORESOURCE_MEM,
83 },
84};
85
86static 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
96static struct resource heartbeat_resources[] = {
97 [0] = {
98 .start = PA_OUTPORT,
99 .end = PA_OUTPORT,
100 .flags = IORESOURCE_MEM,
101 },
102};
103
104static struct platform_device heartbeat_device = {
105 .name = "heartbeat",
106 .id = -1,
107 .num_resources = ARRAY_SIZE(heartbeat_resources),
108 .resource = heartbeat_resources,
109};
110
111static 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
128static 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
141static 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
150static 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
158static 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
165static struct sm501_initdata sm501_initdata = {
166 .devices = SM501_USE_USB_HOST | SM501_USE_UART0,
167};
168
169static struct sm501_platdata sm501_platform_data = {
170 .init = &sm501_initdata,
171 .fb = &sm501_fb_pdata,
172};
173
174static 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
184static struct mtd_partition r2d_partitions[] = {
185 {
186 .name = "U-Boot",
187 .offset = 0x00000000,
188 .size = 0x00040000,
189 .mask_flags = MTD_WRITEABLE,
190 }, {
191 .name = "Environment",
192 .offset = MTDPART_OFS_NXTBLK,
193 .size = 0x00040000,
194 .mask_flags = MTD_WRITEABLE,
195 }, {
196 .name = "Kernel",
197 .offset = MTDPART_OFS_NXTBLK,
198 .size = 0x001c0000,
199 }, {
200 .name = "Flash_FS",
201 .offset = MTDPART_OFS_NXTBLK,
202 .size = MTDPART_SIZ_FULL,
203 }
204};
205
206static struct physmap_flash_data flash_data = {
207 .width = 2,
208 .nr_parts = ARRAY_SIZE(r2d_partitions),
209 .parts = r2d_partitions,
210};
211
212static struct resource flash_resource = {
213 .start = 0x00000000,
214 .end = 0x02000000,
215 .flags = IORESOURCE_MEM,
216};
217
218static struct platform_device flash_device = {
219 .name = "physmap-flash",
220 .id = -1,
221 .resource = &flash_resource,
222 .num_resources = 1,
223 .dev = {
224 .platform_data = &flash_data,
225 },
226};
227
228static struct platform_device *rts7751r2d_devices[] __initdata = {
229 &sm501_device,
230 &heartbeat_device,
231 &spi_sh_sci_device,
232};
233
234/*
235 * The CF is connected with a 16-bit bus where 8-bit operations are
236 * unsupported. The linux ata driver is however using 8-bit operations, so
237 * insert a trapped io filter to convert 8-bit operations into 16-bit.
238 */
239static struct trapped_io cf_trapped_io = {
240 .resource = cf_ide_resources,
241 .num_resources = 2,
242 .minimum_bus_width = 16,
243};
244
245static int __init rts7751r2d_devices_setup(void)
246{
247 if (register_trapped_io(&cf_trapped_io) == 0)
248 platform_device_register(&cf_ide_device);
249
250 if (mach_is_r2d_plus())
251 platform_device_register(&flash_device);
252
253 spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
254
255 return platform_add_devices(rts7751r2d_devices,
256 ARRAY_SIZE(rts7751r2d_devices));
257}
258device_initcall(rts7751r2d_devices_setup);
259
260static void rts7751r2d_power_off(void)
261{
262 __raw_writew(0x0001, PA_POWOFF);
263}
264
265/*
266 * Initialize the board
267 */
268static void __init rts7751r2d_setup(char **cmdline_p)
269{
270 void __iomem *sm501_reg;
271 u16 ver = __raw_readw(PA_VERREG);
272
273 printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
274
275 printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
276 (ver >> 4) & 0xf, ver & 0xf);
277
278 __raw_writew(0x0000, PA_OUTPORT);
279 pm_power_off = rts7751r2d_power_off;
280
281 /* sm501 dram configuration:
282 * ColSizeX = 11 - External Memory Column Size: 256 words.
283 * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
284 * RstX = 1 - External Memory Reset: Normal.
285 * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
286 * BwC = 1 - Local Memory Block Write Cycle Time: 2 clocks.
287 * BwP = 1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
288 * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
289 * Rst = 1 - Internal Memory Reset: Normal.
290 * RA = 1 - Internal Memory Remain in Active State: Do not remain.
291 */
292
293 sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
294 writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
295}
296
297/*
298 * The Machine Vector
299 */
300static struct sh_machine_vector mv_rts7751r2d __initmv = {
301 .mv_name = "RTS7751R2D",
302 .mv_setup = rts7751r2d_setup,
303 .mv_init_irq = init_rts7751r2d_IRQ,
304 .mv_irq_demux = rts7751r2d_irq_demux,
305};