Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-imx / mach-mx21ads.c
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1/*
2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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 as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
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15 */
16
17#include <linux/platform_device.h>
18#include <linux/mtd/mtd.h>
19#include <linux/mtd/physmap.h>
20#include <linux/gpio.h>
21#include <mach/common.h>
22#include <mach/hardware.h>
23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25#include <asm/mach/time.h>
26#include <asm/mach/map.h>
e835d88e 27#include <mach/iomux-mx21.h>
6b91edde 28#include <mach/mxc_nand.h>
6b91edde 29
1f8d721c 30#include "devices-imx21.h"
6b91edde 31
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32/*
33 * Memory-mapped I/O on MX21ADS base board
34 */
35#define MX21ADS_MMIO_BASE_ADDR 0xf5000000
36#define MX21ADS_MMIO_SIZE SZ_16M
37
38#define MX21ADS_REG_ADDR(offset) (void __force __iomem *) \
39 (MX21ADS_MMIO_BASE_ADDR + (offset))
40
41#define MX21ADS_CS8900A_IRQ IRQ_GPIOE(11)
42#define MX21ADS_CS8900A_IOBASE_REG MX21ADS_REG_ADDR(0x000000)
43#define MX21ADS_ST16C255_IOBASE_REG MX21ADS_REG_ADDR(0x200000)
44#define MX21ADS_VERSION_REG MX21ADS_REG_ADDR(0x400000)
45#define MX21ADS_IO_REG MX21ADS_REG_ADDR(0x800000)
46
47/* MX21ADS_IO_REG bit definitions */
48#define MX21ADS_IO_SD_WP 0x0001 /* read */
49#define MX21ADS_IO_TP6 0x0001 /* write */
50#define MX21ADS_IO_SW_SEL 0x0002 /* read */
51#define MX21ADS_IO_TP7 0x0002 /* write */
52#define MX21ADS_IO_RESET_E_UART 0x0004
53#define MX21ADS_IO_RESET_BASE 0x0008
54#define MX21ADS_IO_CSI_CTL2 0x0010
55#define MX21ADS_IO_CSI_CTL1 0x0020
56#define MX21ADS_IO_CSI_CTL0 0x0040
57#define MX21ADS_IO_UART1_EN 0x0080
58#define MX21ADS_IO_UART4_EN 0x0100
59#define MX21ADS_IO_LCDON 0x0200
60#define MX21ADS_IO_IRDA_EN 0x0400
61#define MX21ADS_IO_IRDA_FIR_SEL 0x0800
62#define MX21ADS_IO_IRDA_MD0_B 0x1000
63#define MX21ADS_IO_IRDA_MD1 0x2000
64#define MX21ADS_IO_LED4_ON 0x4000
65#define MX21ADS_IO_LED3_ON 0x8000
66
6c80ee51 67static const int mx21ads_pins[] __initconst = {
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68
69 /* CS8900A */
70 (GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11),
71
72 /* UART1 */
73 PE12_PF_UART1_TXD,
74 PE13_PF_UART1_RXD,
75 PE14_PF_UART1_CTS,
76 PE15_PF_UART1_RTS,
77
78 /* UART3 (IrDA) - only TXD and RXD */
79 PE8_PF_UART3_TXD,
80 PE9_PF_UART3_RXD,
81
82 /* UART4 */
83 PB26_AF_UART4_RTS,
84 PB28_AF_UART4_TXD,
85 PB29_AF_UART4_CTS,
86 PB31_AF_UART4_RXD,
87
88 /* LCDC */
89 PA5_PF_LSCLK,
90 PA6_PF_LD0,
91 PA7_PF_LD1,
92 PA8_PF_LD2,
93 PA9_PF_LD3,
94 PA10_PF_LD4,
95 PA11_PF_LD5,
96 PA12_PF_LD6,
97 PA13_PF_LD7,
98 PA14_PF_LD8,
99 PA15_PF_LD9,
100 PA16_PF_LD10,
101 PA17_PF_LD11,
102 PA18_PF_LD12,
103 PA19_PF_LD13,
104 PA20_PF_LD14,
105 PA21_PF_LD15,
106 PA22_PF_LD16,
107 PA24_PF_REV, /* Sharp panel dedicated signal */
108 PA25_PF_CLS, /* Sharp panel dedicated signal */
109 PA26_PF_PS, /* Sharp panel dedicated signal */
110 PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
111 PA28_PF_HSYNC,
112 PA29_PF_VSYNC,
113 PA30_PF_CONTRAST,
114 PA31_PF_OE_ACD,
115
116 /* MMC/SDHC */
117 PE18_PF_SD1_D0,
118 PE19_PF_SD1_D1,
119 PE20_PF_SD1_D2,
120 PE21_PF_SD1_D3,
121 PE22_PF_SD1_CMD,
122 PE23_PF_SD1_CLK,
123
124 /* NFC */
125 PF0_PF_NRFB,
126 PF1_PF_NFCE,
127 PF2_PF_NFWP,
128 PF3_PF_NFCLE,
129 PF4_PF_NFALE,
130 PF5_PF_NFRE,
131 PF6_PF_NFWE,
132 PF7_PF_NFIO0,
133 PF8_PF_NFIO1,
134 PF9_PF_NFIO2,
135 PF10_PF_NFIO3,
136 PF11_PF_NFIO4,
137 PF12_PF_NFIO5,
138 PF13_PF_NFIO6,
139 PF14_PF_NFIO7,
140};
141
142/* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
143static struct physmap_flash_data mx21ads_flash_data = {
144 .width = 4,
145};
146
147static struct resource mx21ads_flash_resource = {
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148 .start = MX21_CS0_BASE_ADDR,
149 .end = MX21_CS0_BASE_ADDR + 0x02000000 - 1,
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150 .flags = IORESOURCE_MEM,
151};
152
153static struct platform_device mx21ads_nor_mtd_device = {
154 .name = "physmap-flash",
155 .id = 0,
156 .dev = {
157 .platform_data = &mx21ads_flash_data,
158 },
159 .num_resources = 1,
160 .resource = &mx21ads_flash_resource,
161};
162
3c5227fd 163static const struct imxuart_platform_data uart_pdata_rts __initconst = {
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164 .flags = IMXUART_HAVE_RTSCTS,
165};
166
3c5227fd 167static const struct imxuart_platform_data uart_pdata_norts __initconst = {
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168};
169
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170static int mx21ads_fb_init(struct platform_device *pdev)
171{
172 u16 tmp;
173
174 tmp = __raw_readw(MX21ADS_IO_REG);
175 tmp |= MX21ADS_IO_LCDON;
176 __raw_writew(tmp, MX21ADS_IO_REG);
177 return 0;
178}
179
180static void mx21ads_fb_exit(struct platform_device *pdev)
181{
182 u16 tmp;
183
184 tmp = __raw_readw(MX21ADS_IO_REG);
185 tmp &= ~MX21ADS_IO_LCDON;
186 __raw_writew(tmp, MX21ADS_IO_REG);
187}
188
189/*
190 * Connected is a portrait Sharp-QVGA display
191 * of type: LQ035Q7DB02
192 */
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193static struct imx_fb_videomode mx21ads_modes[] = {
194 {
195 .mode = {
196 .name = "Sharp-LQ035Q7",
197 .refresh = 60,
198 .xres = 240,
199 .yres = 320,
200 .pixclock = 188679, /* in ps (5.3MHz) */
201 .hsync_len = 2,
202 .left_margin = 6,
203 .right_margin = 16,
204 .vsync_len = 1,
205 .upper_margin = 8,
206 .lower_margin = 10,
207 },
208 .pcr = 0xfb108bc7,
209 .bpp = 16,
210 },
211};
212
ad851bff 213static const struct imx_fb_platform_data mx21ads_fb_data __initconst = {
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214 .mode = mx21ads_modes,
215 .num_modes = ARRAY_SIZE(mx21ads_modes),
216
217 .pwmr = 0x00a903ff,
218 .lscr1 = 0x00120300,
219 .dmacr = 0x00020008,
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220
221 .init = mx21ads_fb_init,
222 .exit = mx21ads_fb_exit,
223};
224
225static int mx21ads_sdhc_get_ro(struct device *dev)
226{
227 return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0;
228}
229
230static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
231 void *data)
232{
9d3d945a 233 return request_irq(IRQ_GPIOD(25), detect_irq,
6b91edde 234 IRQF_TRIGGER_FALLING, "mmc-detect", data);
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235}
236
237static void mx21ads_sdhc_exit(struct device *dev, void *data)
238{
239 free_irq(IRQ_GPIOD(25), data);
240}
241
9d3d945a 242static const struct imxmmc_platform_data mx21ads_sdhc_pdata __initconst = {
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243 .ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */
244 .get_ro = mx21ads_sdhc_get_ro,
245 .init = mx21ads_sdhc_init,
246 .exit = mx21ads_sdhc_exit,
247};
248
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249static const struct mxc_nand_platform_data
250mx21ads_nand_board_info __initconst = {
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251 .width = 1,
252 .hw_ecc = 1,
253};
254
255static struct map_desc mx21ads_io_desc[] __initdata = {
256 /*
257 * Memory-mapped I/O on MX21ADS Base board:
258 * - CS8900A Ethernet controller
259 * - ST16C2552CJ UART
260 * - CPU and Base board version
261 * - Base board I/O register
262 */
263 {
264 .virtual = MX21ADS_MMIO_BASE_ADDR,
3f35d1f5 265 .pfn = __phys_to_pfn(MX21_CS1_BASE_ADDR),
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266 .length = MX21ADS_MMIO_SIZE,
267 .type = MT_DEVICE,
268 },
269};
270
271static void __init mx21ads_map_io(void)
272{
273 mx21_map_io();
274 iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc));
275}
276
277static struct platform_device *platform_devices[] __initdata = {
278 &mx21ads_nor_mtd_device,
279};
280
281static void __init mx21ads_board_init(void)
282{
283 mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
284 "mx21ads");
285
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286 imx21_add_imx_uart0(&uart_pdata_rts);
287 imx21_add_imx_uart2(&uart_pdata_norts);
288 imx21_add_imx_uart3(&uart_pdata_rts);
ad851bff 289 imx21_add_imx_fb(&mx21ads_fb_data);
9d3d945a 290 imx21_add_mxc_mmc(0, &mx21ads_sdhc_pdata);
1f8d721c 291 imx21_add_mxc_nand(&mx21ads_nand_board_info);
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292
293 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
294}
295
296static void __init mx21ads_timer_init(void)
297{
298 mx21_clocks_init(32768, 26000000);
299}
300
301static struct sys_timer mx21ads_timer = {
302 .init = mx21ads_timer_init,
303};
304
305MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
306 /* maintainer: Freescale Semiconductor, Inc. */
34101237 307 .boot_params = MX21_PHYS_OFFSET + 0x100,
6b91edde 308 .map_io = mx21ads_map_io,
c5aa0ad0 309 .init_irq = mx21_init_irq,
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310 .init_machine = mx21ads_board_init,
311 .timer = &mx21ads_timer,
312MACHINE_END