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Linux/arch/arm/mach-mmp/ttc_dkb.c

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  1 /*
  2  *  linux/arch/arm/mach-mmp/ttc_dkb.c
  3  *
  4  *  Support for the Marvell PXA910-based TTC_DKB Development Platform.
  5  *
  6  *  This program is free software; you can redistribute it and/or modify
  7  *  it under the terms of the GNU General Public License version 2 as
  8  *  publishhed by the Free Software Foundation.
  9  */
 10 
 11 #include <linux/init.h>
 12 #include <linux/kernel.h>
 13 #include <linux/platform_device.h>
 14 #include <linux/mtd/mtd.h>
 15 #include <linux/mtd/partitions.h>
 16 #include <linux/mtd/onenand.h>
 17 #include <linux/interrupt.h>
 18 #include <linux/platform_data/pca953x.h>
 19 #include <linux/gpio.h>
 20 #include <linux/gpio-pxa.h>
 21 #include <linux/mfd/88pm860x.h>
 22 #include <linux/platform_data/mv_usb.h>
 23 #include <linux/spi/spi.h>
 24 #include <linux/delay.h>
 25 
 26 #include <asm/mach-types.h>
 27 #include <asm/mach/arch.h>
 28 #include <asm/mach/flash.h>
 29 #include <mach/addr-map.h>
 30 #include <mach/mfp-pxa910.h>
 31 #include <mach/pxa910.h>
 32 #include <mach/irqs.h>
 33 #include <mach/regs-usb.h>
 34 
 35 #include "common.h"
 36 
 37 #define TTCDKB_GPIO_EXT0(x)     (MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 :   \
 38                                 ((x < 16) ? x : 15)))
 39 #define TTCDKB_GPIO_EXT1(x)     (MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
 40                                 ((x < 16) ? x : 15)))
 41 
 42 /*
 43  * 16 board interrupts -- MAX7312 GPIO expander
 44  * 16 board interrupts -- PCA9575 GPIO expander
 45  * 24 board interrupts -- 88PM860x PMIC
 46  */
 47 #define TTCDKB_NR_IRQS          (MMP_NR_IRQS + 16 + 16 + 24)
 48 
 49 static unsigned long ttc_dkb_pin_config[] __initdata = {
 50         /* UART2 */
 51         GPIO47_UART2_RXD,
 52         GPIO48_UART2_TXD,
 53 
 54         /* DFI */
 55         DF_IO0_ND_IO0,
 56         DF_IO1_ND_IO1,
 57         DF_IO2_ND_IO2,
 58         DF_IO3_ND_IO3,
 59         DF_IO4_ND_IO4,
 60         DF_IO5_ND_IO5,
 61         DF_IO6_ND_IO6,
 62         DF_IO7_ND_IO7,
 63         DF_IO8_ND_IO8,
 64         DF_IO9_ND_IO9,
 65         DF_IO10_ND_IO10,
 66         DF_IO11_ND_IO11,
 67         DF_IO12_ND_IO12,
 68         DF_IO13_ND_IO13,
 69         DF_IO14_ND_IO14,
 70         DF_IO15_ND_IO15,
 71         DF_nCS0_SM_nCS2_nCS0,
 72         DF_ALE_SM_WEn_ND_ALE,
 73         DF_CLE_SM_OEn_ND_CLE,
 74         DF_WEn_DF_WEn,
 75         DF_REn_DF_REn,
 76         DF_RDY0_DF_RDY0,
 77 };
 78 
 79 static struct pxa_gpio_platform_data pxa910_gpio_pdata = {
 80         .irq_base       = MMP_GPIO_TO_IRQ(0),
 81 };
 82 
 83 static struct mtd_partition ttc_dkb_onenand_partitions[] = {
 84         {
 85                 .name           = "bootloader",
 86                 .offset         = 0,
 87                 .size           = SZ_1M,
 88                 .mask_flags     = MTD_WRITEABLE,
 89         }, {
 90                 .name           = "reserved",
 91                 .offset         = MTDPART_OFS_APPEND,
 92                 .size           = SZ_128K,
 93                 .mask_flags     = MTD_WRITEABLE,
 94         }, {
 95                 .name           = "reserved",
 96                 .offset         = MTDPART_OFS_APPEND,
 97                 .size           = SZ_8M,
 98                 .mask_flags     = MTD_WRITEABLE,
 99         }, {
100                 .name           = "kernel",
101                 .offset         = MTDPART_OFS_APPEND,
102                 .size           = (SZ_2M + SZ_1M),
103                 .mask_flags     = 0,
104         }, {
105                 .name           = "filesystem",
106                 .offset         = MTDPART_OFS_APPEND,
107                 .size           = SZ_32M + SZ_16M,
108                 .mask_flags     = 0,
109         }
110 };
111 
112 static struct onenand_platform_data ttc_dkb_onenand_info = {
113         .parts          = ttc_dkb_onenand_partitions,
114         .nr_parts       = ARRAY_SIZE(ttc_dkb_onenand_partitions),
115 };
116 
117 static struct resource ttc_dkb_resource_onenand[] = {
118         [0] = {
119                 .start  = SMC_CS0_PHYS_BASE,
120                 .end    = SMC_CS0_PHYS_BASE + SZ_1M,
121                 .flags  = IORESOURCE_MEM,
122         },
123 };
124 
125 static struct platform_device ttc_dkb_device_onenand = {
126         .name           = "onenand-flash",
127         .id             = -1,
128         .resource       = ttc_dkb_resource_onenand,
129         .num_resources  = ARRAY_SIZE(ttc_dkb_resource_onenand),
130         .dev            = {
131                 .platform_data  = &ttc_dkb_onenand_info,
132         },
133 };
134 
135 static struct platform_device *ttc_dkb_devices[] = {
136         &pxa910_device_gpio,
137         &pxa910_device_rtc,
138         &ttc_dkb_device_onenand,
139 };
140 
141 static struct pca953x_platform_data max7312_data[] = {
142         {
143                 .gpio_base      = TTCDKB_GPIO_EXT0(0),
144                 .irq_base       = MMP_NR_IRQS,
145         },
146 };
147 
148 static struct pm860x_platform_data ttc_dkb_pm8607_info = {
149         .irq_base       = IRQ_BOARD_START,
150 };
151 
152 static struct i2c_board_info ttc_dkb_i2c_info[] = {
153         {
154                 .type           = "88PM860x",
155                 .addr           = 0x34,
156                 .platform_data  = &ttc_dkb_pm8607_info,
157                 .irq            = IRQ_PXA910_PMIC_INT,
158         },
159         {
160                 .type           = "max7312",
161                 .addr           = 0x23,
162                 .irq            = MMP_GPIO_TO_IRQ(80),
163                 .platform_data  = &max7312_data,
164         },
165 };
166 
167 #if IS_ENABLED(CONFIG_USB_SUPPORT)
168 #if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
169 
170 static struct mv_usb_platform_data ttc_usb_pdata = {
171         .vbus           = NULL,
172         .mode           = MV_USB_MODE_OTG,
173         .otg_force_a_bus_req = 1,
174         .phy_init       = pxa_usb_phy_init,
175         .phy_deinit     = pxa_usb_phy_deinit,
176         .set_vbus       = NULL,
177 };
178 #endif
179 #endif
180 
181 #if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
182 static struct pxa3xx_nand_platform_data dkb_nand_info = {
183         .enable_arbiter = 1,
184         .num_cs = 1,
185 };
186 #endif
187 
188 #if IS_ENABLED(CONFIG_MMP_DISP)
189 /* path config */
190 #define CFG_IOPADMODE(iopad)   (iopad)  /* 0x0 ~ 0xd */
191 #define SCLK_SOURCE_SELECT(x)  (x << 30) /* 0x0 ~ 0x3 */
192 /* link config */
193 #define CFG_DUMBMODE(mode)     (mode << 28) /* 0x0 ~ 0x6*/
194 static struct mmp_mach_path_config dkb_disp_config[] = {
195         [0] = {
196                 .name = "mmp-parallel",
197                 .overlay_num = 2,
198                 .output_type = PATH_OUT_PARALLEL,
199                 .path_config = CFG_IOPADMODE(0x1)
200                         | SCLK_SOURCE_SELECT(0x1),
201                 .link_config = CFG_DUMBMODE(0x2),
202         },
203 };
204 
205 static struct mmp_mach_plat_info dkb_disp_info = {
206         .name = "mmp-disp",
207         .clk_name = "disp0",
208         .path_num = 1,
209         .paths = dkb_disp_config,
210 };
211 
212 static struct mmp_buffer_driver_mach_info dkb_fb_info = {
213         .name = "mmp-fb",
214         .path_name = "mmp-parallel",
215         .overlay_id = 0,
216         .dmafetch_id = 1,
217         .default_pixfmt = PIXFMT_RGB565,
218 };
219 
220 static void dkb_tpo_panel_power(int on)
221 {
222         int err;
223         u32 spi_reset = mfp_to_gpio(MFP_PIN_GPIO106);
224 
225         if (on) {
226                 err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
227                 if (err) {
228                         pr_err("failed to request GPIO for TPO LCD RESET\n");
229                         return;
230                 }
231                 gpio_direction_output(spi_reset, 0);
232                 udelay(100);
233                 gpio_set_value(spi_reset, 1);
234                 gpio_free(spi_reset);
235         } else {
236                 err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
237                 if (err) {
238                         pr_err("failed to request LCD RESET gpio\n");
239                         return;
240                 }
241                 gpio_set_value(spi_reset, 0);
242                 gpio_free(spi_reset);
243         }
244 }
245 
246 static struct mmp_mach_panel_info dkb_tpo_panel_info = {
247         .name = "tpo-hvga",
248         .plat_path_name = "mmp-parallel",
249         .plat_set_onoff = dkb_tpo_panel_power,
250 };
251 
252 static struct spi_board_info spi_board_info[] __initdata = {
253         {
254                 .modalias       = "tpo-hvga",
255                 .platform_data  = &dkb_tpo_panel_info,
256                 .bus_num        = 5,
257         }
258 };
259 
260 static void __init add_disp(void)
261 {
262         pxa_register_device(&pxa910_device_disp,
263                 &dkb_disp_info, sizeof(dkb_disp_info));
264         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
265         pxa_register_device(&pxa910_device_fb,
266                 &dkb_fb_info, sizeof(dkb_fb_info));
267         pxa_register_device(&pxa910_device_panel,
268                 &dkb_tpo_panel_info, sizeof(dkb_tpo_panel_info));
269 }
270 #endif
271 
272 static void __init ttc_dkb_init(void)
273 {
274         mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config));
275 
276         /* on-chip devices */
277         pxa910_add_uart(1);
278 #if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
279         pxa910_add_nand(&dkb_nand_info);
280 #endif
281 
282         /* off-chip devices */
283         pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
284         platform_device_add_data(&pxa910_device_gpio, &pxa910_gpio_pdata,
285                                  sizeof(struct pxa_gpio_platform_data));
286         platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
287 
288 #if IS_ENABLED(CONFIG_USB_MV_UDC)
289         pxa168_device_u2o.dev.platform_data = &ttc_usb_pdata;
290         platform_device_register(&pxa168_device_u2o);
291 #endif
292 
293 #if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
294         pxa168_device_u2oehci.dev.platform_data = &ttc_usb_pdata;
295         platform_device_register(&pxa168_device_u2oehci);
296 #endif
297 
298 #if IS_ENABLED(CONFIG_USB_MV_OTG)
299         pxa168_device_u2ootg.dev.platform_data = &ttc_usb_pdata;
300         platform_device_register(&pxa168_device_u2ootg);
301 #endif
302 
303 #if IS_ENABLED(CONFIG_MMP_DISP)
304         add_disp();
305 #endif
306 }
307 
308 MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform")
309         .map_io         = mmp_map_io,
310         .nr_irqs        = TTCDKB_NR_IRQS,
311         .init_irq       = pxa910_init_irq,
312         .init_time      = pxa910_timer_init,
313         .init_machine   = ttc_dkb_init,
314         .restart        = mmp_restart,
315 MACHINE_END
316 

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