1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *  linux/arch/arm/mach-mmp/ttc_dkb.c
4  *
5  *  Support for the Marvell PXA910-based TTC_DKB Development Platform.
6  */
7 
8 #include <linux/init.h>
9 #include <linux/kernel.h>
10 #include <linux/platform_device.h>
11 #include <linux/mtd/mtd.h>
12 #include <linux/mtd/partitions.h>
13 #include <linux/mtd/onenand.h>
14 #include <linux/interrupt.h>
15 #include <linux/platform_data/pca953x.h>
16 #include <linux/gpio.h>
17 #include <linux/gpio-pxa.h>
18 #include <linux/mfd/88pm860x.h>
19 #include <linux/platform_data/mv_usb.h>
20 #include <linux/spi/spi.h>
21 #include <linux/delay.h>
22 
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/flash.h>
26 #include "addr-map.h"
27 #include "mfp-pxa910.h"
28 #include "pxa910.h"
29 #include "irqs.h"
30 #include "regs-usb.h"
31 
32 #include "common.h"
33 
34 #define TTCDKB_GPIO_EXT0(x)	(MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 :	\
35 				((x < 16) ? x : 15)))
36 #define TTCDKB_GPIO_EXT1(x)	(MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
37 				((x < 16) ? x : 15)))
38 
39 /*
40  * 16 board interrupts -- MAX7312 GPIO expander
41  * 16 board interrupts -- PCA9575 GPIO expander
42  * 24 board interrupts -- 88PM860x PMIC
43  */
44 #define TTCDKB_NR_IRQS		(MMP_NR_IRQS + 16 + 16 + 24)
45 
46 static unsigned long ttc_dkb_pin_config[] __initdata = {
47 	/* UART2 */
48 	GPIO47_UART2_RXD,
49 	GPIO48_UART2_TXD,
50 
51 	/* DFI */
52 	DF_IO0_ND_IO0,
53 	DF_IO1_ND_IO1,
54 	DF_IO2_ND_IO2,
55 	DF_IO3_ND_IO3,
56 	DF_IO4_ND_IO4,
57 	DF_IO5_ND_IO5,
58 	DF_IO6_ND_IO6,
59 	DF_IO7_ND_IO7,
60 	DF_IO8_ND_IO8,
61 	DF_IO9_ND_IO9,
62 	DF_IO10_ND_IO10,
63 	DF_IO11_ND_IO11,
64 	DF_IO12_ND_IO12,
65 	DF_IO13_ND_IO13,
66 	DF_IO14_ND_IO14,
67 	DF_IO15_ND_IO15,
68 	DF_nCS0_SM_nCS2_nCS0,
69 	DF_ALE_SM_WEn_ND_ALE,
70 	DF_CLE_SM_OEn_ND_CLE,
71 	DF_WEn_DF_WEn,
72 	DF_REn_DF_REn,
73 	DF_RDY0_DF_RDY0,
74 };
75 
76 static struct pxa_gpio_platform_data pxa910_gpio_pdata = {
77 	.irq_base	= MMP_GPIO_TO_IRQ(0),
78 };
79 
80 static struct mtd_partition ttc_dkb_onenand_partitions[] = {
81 	{
82 		.name		= "bootloader",
83 		.offset		= 0,
84 		.size		= SZ_1M,
85 		.mask_flags	= MTD_WRITEABLE,
86 	}, {
87 		.name		= "reserved",
88 		.offset		= MTDPART_OFS_APPEND,
89 		.size		= SZ_128K,
90 		.mask_flags	= MTD_WRITEABLE,
91 	}, {
92 		.name		= "reserved",
93 		.offset		= MTDPART_OFS_APPEND,
94 		.size		= SZ_8M,
95 		.mask_flags	= MTD_WRITEABLE,
96 	}, {
97 		.name		= "kernel",
98 		.offset		= MTDPART_OFS_APPEND,
99 		.size		= (SZ_2M + SZ_1M),
100 		.mask_flags	= 0,
101 	}, {
102 		.name		= "filesystem",
103 		.offset		= MTDPART_OFS_APPEND,
104 		.size		= SZ_32M + SZ_16M,
105 		.mask_flags	= 0,
106 	}
107 };
108 
109 static struct onenand_platform_data ttc_dkb_onenand_info = {
110 	.parts		= ttc_dkb_onenand_partitions,
111 	.nr_parts	= ARRAY_SIZE(ttc_dkb_onenand_partitions),
112 };
113 
114 static struct resource ttc_dkb_resource_onenand[] = {
115 	[0] = {
116 		.start	= SMC_CS0_PHYS_BASE,
117 		.end	= SMC_CS0_PHYS_BASE + SZ_1M,
118 		.flags	= IORESOURCE_MEM,
119 	},
120 };
121 
122 static struct platform_device ttc_dkb_device_onenand = {
123 	.name		= "onenand-flash",
124 	.id		= -1,
125 	.resource	= ttc_dkb_resource_onenand,
126 	.num_resources	= ARRAY_SIZE(ttc_dkb_resource_onenand),
127 	.dev		= {
128 		.platform_data	= &ttc_dkb_onenand_info,
129 	},
130 };
131 
132 static struct platform_device *ttc_dkb_devices[] = {
133 	&pxa910_device_gpio,
134 	&pxa910_device_rtc,
135 	&ttc_dkb_device_onenand,
136 };
137 
138 static struct pca953x_platform_data max7312_data[] = {
139 	{
140 		.gpio_base	= TTCDKB_GPIO_EXT0(0),
141 		.irq_base	= MMP_NR_IRQS,
142 	},
143 };
144 
145 static struct pm860x_platform_data ttc_dkb_pm8607_info = {
146 	.irq_base       = IRQ_BOARD_START,
147 };
148 
149 static struct i2c_board_info ttc_dkb_i2c_info[] = {
150 	{
151 		.type           = "88PM860x",
152 		.addr           = 0x34,
153 		.platform_data  = &ttc_dkb_pm8607_info,
154 		.irq            = IRQ_PXA910_PMIC_INT,
155 	},
156 	{
157 		.type		= "max7312",
158 		.addr		= 0x23,
159 		.irq		= MMP_GPIO_TO_IRQ(80),
160 		.platform_data	= &max7312_data,
161 	},
162 };
163 
164 #if IS_ENABLED(CONFIG_USB_SUPPORT)
165 #if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
166 
167 static struct mv_usb_platform_data ttc_usb_pdata = {
168 	.vbus		= NULL,
169 	.mode		= MV_USB_MODE_OTG,
170 	.otg_force_a_bus_req = 1,
171 	.phy_init	= pxa_usb_phy_init,
172 	.phy_deinit	= pxa_usb_phy_deinit,
173 	.set_vbus	= NULL,
174 };
175 #endif
176 #endif
177 
178 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
179 static struct pxa3xx_nand_platform_data dkb_nand_info = {};
180 #endif
181 
182 #if IS_ENABLED(CONFIG_MMP_DISP)
183 /* path config */
184 #define CFG_IOPADMODE(iopad)   (iopad)  /* 0x0 ~ 0xd */
185 #define SCLK_SOURCE_SELECT(x)  (x << 30) /* 0x0 ~ 0x3 */
186 /* link config */
187 #define CFG_DUMBMODE(mode)     (mode << 28) /* 0x0 ~ 0x6*/
188 static struct mmp_mach_path_config dkb_disp_config[] = {
189 	[0] = {
190 		.name = "mmp-parallel",
191 		.overlay_num = 2,
192 		.output_type = PATH_OUT_PARALLEL,
193 		.path_config = CFG_IOPADMODE(0x1)
194 			| SCLK_SOURCE_SELECT(0x1),
195 		.link_config = CFG_DUMBMODE(0x2),
196 	},
197 };
198 
199 static struct mmp_mach_plat_info dkb_disp_info = {
200 	.name = "mmp-disp",
201 	.clk_name = "disp0",
202 	.path_num = 1,
203 	.paths = dkb_disp_config,
204 };
205 
206 static struct mmp_buffer_driver_mach_info dkb_fb_info = {
207 	.name = "mmp-fb",
208 	.path_name = "mmp-parallel",
209 	.overlay_id = 0,
210 	.dmafetch_id = 1,
211 	.default_pixfmt = PIXFMT_RGB565,
212 };
213 
dkb_tpo_panel_power(int on)214 static void dkb_tpo_panel_power(int on)
215 {
216 	int err;
217 	u32 spi_reset = mfp_to_gpio(MFP_PIN_GPIO106);
218 
219 	if (on) {
220 		err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
221 		if (err) {
222 			pr_err("failed to request GPIO for TPO LCD RESET\n");
223 			return;
224 		}
225 		gpio_direction_output(spi_reset, 0);
226 		udelay(100);
227 		gpio_set_value(spi_reset, 1);
228 		gpio_free(spi_reset);
229 	} else {
230 		err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
231 		if (err) {
232 			pr_err("failed to request LCD RESET gpio\n");
233 			return;
234 		}
235 		gpio_set_value(spi_reset, 0);
236 		gpio_free(spi_reset);
237 	}
238 }
239 
240 static struct mmp_mach_panel_info dkb_tpo_panel_info = {
241 	.name = "tpo-hvga",
242 	.plat_path_name = "mmp-parallel",
243 	.plat_set_onoff = dkb_tpo_panel_power,
244 };
245 
246 static struct spi_board_info spi_board_info[] __initdata = {
247 	{
248 		.modalias       = "tpo-hvga",
249 		.platform_data  = &dkb_tpo_panel_info,
250 		.bus_num        = 5,
251 	}
252 };
253 
add_disp(void)254 static void __init add_disp(void)
255 {
256 	mmp_register_device(&pxa910_device_disp,
257 		&dkb_disp_info, sizeof(dkb_disp_info));
258 	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
259 	mmp_register_device(&pxa910_device_fb,
260 		&dkb_fb_info, sizeof(dkb_fb_info));
261 	mmp_register_device(&pxa910_device_panel,
262 		&dkb_tpo_panel_info, sizeof(dkb_tpo_panel_info));
263 }
264 #endif
265 
ttc_dkb_init(void)266 static void __init ttc_dkb_init(void)
267 {
268 	mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config));
269 
270 	/* on-chip devices */
271 	pxa910_add_uart(1);
272 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
273 	pxa910_add_nand(&dkb_nand_info);
274 #endif
275 
276 	/* off-chip devices */
277 	pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
278 	platform_device_add_data(&pxa910_device_gpio, &pxa910_gpio_pdata,
279 				 sizeof(struct pxa_gpio_platform_data));
280 	platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
281 
282 #if IS_ENABLED(CONFIG_USB_SUPPORT)
283 #if IS_ENABLED(CONFIG_PHY_PXA_USB)
284 	platform_device_register(&pxa168_device_usb_phy);
285 #endif
286 
287 #if IS_ENABLED(CONFIG_USB_MV_UDC)
288 	pxa168_device_u2o.dev.platform_data = &ttc_usb_pdata;
289 	platform_device_register(&pxa168_device_u2o);
290 #endif
291 
292 #if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
293 	pxa168_device_u2oehci.dev.platform_data = &ttc_usb_pdata;
294 	platform_device_register(&pxa168_device_u2oehci);
295 #endif
296 
297 #if IS_ENABLED(CONFIG_USB_MV_OTG)
298 	pxa168_device_u2ootg.dev.platform_data = &ttc_usb_pdata;
299 	platform_device_register(&pxa168_device_u2ootg);
300 #endif
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