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diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
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1/*
2 * TI DA850/OMAP-L138 EVM board
3 *
4 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * Derived from: arch/arm/mach-davinci/board-da830-evm.c
7 * Original Copyrights follow:
8 *
9 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
10 * the terms of the GNU General Public License version 2. This program
11 * is licensed "as is" without any warranty of any kind, whether express
12 * or implied.
13 */
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/console.h>
18#include <linux/i2c.h>
19#include <linux/i2c/at24.h>
20#include <linux/gpio.h>
21#include <linux/platform_device.h>
22#include <linux/mtd/mtd.h>
23#include <linux/mtd/nand.h>
24#include <linux/mtd/partitions.h>
25#include <linux/mtd/physmap.h>
26
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29
30#include <mach/common.h>
31#include <mach/irqs.h>
32#include <mach/cp_intc.h>
33#include <mach/da8xx.h>
34#include <mach/nand.h>
35
36#define DA850_EVM_PHY_MASK 0x1
37#define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
38
39#define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
40#define DA850_LCD_PWR_PIN GPIO_TO_PIN(8, 10)
41
42#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
43#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
44
45static struct mtd_partition da850_evm_norflash_partition[] = {
46 {
47 .name = "NOR filesystem",
48 .offset = 0,
49 .size = MTDPART_SIZ_FULL,
50 .mask_flags = 0,
51 },
52};
53
54static struct physmap_flash_data da850_evm_norflash_data = {
55 .width = 2,
56 .parts = da850_evm_norflash_partition,
57 .nr_parts = ARRAY_SIZE(da850_evm_norflash_partition),
58};
59
60static struct resource da850_evm_norflash_resource[] = {
61 {
62 .start = DA8XX_AEMIF_CS2_BASE,
63 .end = DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
64 .flags = IORESOURCE_MEM,
65 },
66};
67
68static struct platform_device da850_evm_norflash_device = {
69 .name = "physmap-flash",
70 .id = 0,
71 .dev = {
72 .platform_data = &da850_evm_norflash_data,
73 },
74 .num_resources = 1,
75 .resource = da850_evm_norflash_resource,
76};
77
78/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
79 * (128K blocks). It may be used instead of the (default) SPI flash
80 * to boot, using TI's tools to install the secondary boot loader
81 * (UBL) and U-Boot.
82 */
83struct mtd_partition da850_evm_nandflash_partition[] = {
84 {
85 .name = "u-boot env",
86 .offset = 0,
87 .size = SZ_128K,
88 .mask_flags = MTD_WRITEABLE,
89 },
90 {
91 .name = "UBL",
92 .offset = MTDPART_OFS_APPEND,
93 .size = SZ_128K,
94 .mask_flags = MTD_WRITEABLE,
95 },
96 {
97 .name = "u-boot",
98 .offset = MTDPART_OFS_APPEND,
99 .size = 4 * SZ_128K,
100 .mask_flags = MTD_WRITEABLE,
101 },
102 {
103 .name = "kernel",
104 .offset = 0x200000,
105 .size = SZ_2M,
106 .mask_flags = 0,
107 },
108 {
109 .name = "filesystem",
110 .offset = MTDPART_OFS_APPEND,
111 .size = MTDPART_SIZ_FULL,
112 .mask_flags = 0,
113 },
114};
115
116static struct davinci_nand_pdata da850_evm_nandflash_data = {
117 .parts = da850_evm_nandflash_partition,
118 .nr_parts = ARRAY_SIZE(da850_evm_nandflash_partition),
119 .ecc_mode = NAND_ECC_HW,
120 .options = NAND_USE_FLASH_BBT,
121};
122
123static struct resource da850_evm_nandflash_resource[] = {
124 {
125 .start = DA8XX_AEMIF_CS3_BASE,
126 .end = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
127 .flags = IORESOURCE_MEM,
128 },
129 {
130 .start = DA8XX_AEMIF_CTL_BASE,
131 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
132 .flags = IORESOURCE_MEM,
133 },
134};
135
136static struct platform_device da850_evm_nandflash_device = {
137 .name = "davinci_nand",
138 .id = 1,
139 .dev = {
140 .platform_data = &da850_evm_nandflash_data,
141 },
142 .num_resources = ARRAY_SIZE(da850_evm_nandflash_resource),
143 .resource = da850_evm_nandflash_resource,
144};
145
146static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
147 {
148 I2C_BOARD_INFO("tlv320aic3x", 0x18),
149 }
150};
151
152static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
153 .bus_freq = 100, /* kHz */
154 .bus_delay = 0, /* usec */
155};
156
157static struct davinci_uart_config da850_evm_uart_config __initdata = {
158 .enabled_uarts = 0x7,
159};
160
161static struct platform_device *da850_evm_devices[] __initdata = {
162 &da850_evm_nandflash_device,
163 &da850_evm_norflash_device,
164};
165
166/* davinci da850 evm audio machine driver */
167static u8 da850_iis_serializer_direction[] = {
168 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
169 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
170 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE,
171 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
172};
173
174static struct snd_platform_data da850_evm_snd_data = {
175 .tx_dma_offset = 0x2000,
176 .rx_dma_offset = 0x2000,
177 .op_mode = DAVINCI_MCASP_IIS_MODE,
178 .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
179 .tdm_slots = 2,
180 .serial_dir = da850_iis_serializer_direction,
181 .eventq_no = EVENTQ_1,
182 .version = MCASP_VERSION_2,
183 .txnumevt = 1,
184 .rxnumevt = 1,
185};
186
187static int da850_evm_mmc_get_ro(int index)
188{
189 return gpio_get_value(DA850_MMCSD_WP_PIN);
190}
191
192static int da850_evm_mmc_get_cd(int index)
193{
194 return !gpio_get_value(DA850_MMCSD_CD_PIN);
195}
196
197static struct davinci_mmc_config da850_mmc_config = {
198 .get_ro = da850_evm_mmc_get_ro,
199 .get_cd = da850_evm_mmc_get_cd,
200 .wires = 4,
201 .version = MMC_CTLR_VERSION_2,
202};
203
204static int da850_lcd_hw_init(void)
205{
206 int status;
207
208 status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
209 if (status < 0)
210 return status;
211
212 status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
213 if (status < 0) {
214 gpio_free(DA850_LCD_BL_PIN);
215 return status;
216 }
217
218 gpio_direction_output(DA850_LCD_BL_PIN, 0);
219 gpio_direction_output(DA850_LCD_PWR_PIN, 0);
220
221 /* disable lcd backlight */
222 gpio_set_value(DA850_LCD_BL_PIN, 0);
223
224 /* disable lcd power */
225 gpio_set_value(DA850_LCD_PWR_PIN, 0);
226
227 /* enable lcd power */
228 gpio_set_value(DA850_LCD_PWR_PIN, 1);
229
230 /* enable lcd backlight */
231 gpio_set_value(DA850_LCD_BL_PIN, 1);
232
233 return 0;
234}
235
236#define DA8XX_AEMIF_CE2CFG_OFFSET 0x10
237#define DA8XX_AEMIF_ASIZE_16BIT 0x1
238
239static void __init da850_evm_init_nor(void)
240{
241 void __iomem *aemif_addr;
242
243 aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);
244
245 /* Configure data bus width of CS2 to 16 bit */
246 writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
247 DA8XX_AEMIF_ASIZE_16BIT,
248 aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);
249
250 iounmap(aemif_addr);
251}
252
253#if defined(CONFIG_MTD_PHYSMAP) || \
254 defined(CONFIG_MTD_PHYSMAP_MODULE)
255#define HAS_NOR 1
256#else
257#define HAS_NOR 0
258#endif
259
260#if defined(CONFIG_MMC_DAVINCI) || \
261 defined(CONFIG_MMC_DAVINCI_MODULE)
262#define HAS_MMC 1
263#else
264#define HAS_MMC 0
265#endif
266
267static __init void da850_evm_init(void)
268{
269 struct davinci_soc_info *soc_info = &davinci_soc_info;
270 int ret;
271
272 ret = da8xx_pinmux_setup(da850_nand_pins);
273 if (ret)
274 pr_warning("da850_evm_init: nand mux setup failed: %d\n",
275 ret);
276
277 ret = da8xx_pinmux_setup(da850_nor_pins);
278 if (ret)
279 pr_warning("da850_evm_init: nor mux setup failed: %d\n",
280 ret);
281
282 da850_evm_init_nor();
283
284 platform_add_devices(da850_evm_devices,
285 ARRAY_SIZE(da850_evm_devices));
286
287 ret = da8xx_register_edma();
288 if (ret)
289 pr_warning("da850_evm_init: edma registration failed: %d\n",
290 ret);
291
292 ret = da8xx_pinmux_setup(da850_i2c0_pins);
293 if (ret)
294 pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
295 ret);
296
297 ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
298 if (ret)
299 pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
300 ret);
301
302 soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
303 soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
304 soc_info->emac_pdata->rmii_en = 0;
305
306 ret = da8xx_pinmux_setup(da850_cpgmac_pins);
307 if (ret)
308 pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n",
309 ret);
310
311 ret = da8xx_register_emac();
312 if (ret)
313 pr_warning("da850_evm_init: emac registration failed: %d\n",
314 ret);
315
316 ret = da8xx_register_watchdog();
317 if (ret)
318 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
319 ret);
320
321 if (HAS_MMC) {
322 if (HAS_NOR)
323 pr_warning("WARNING: both NOR Flash and MMC/SD are "
324 "enabled, but they share AEMIF pins.\n"
325 "\tDisable one of them.\n");
326
327 ret = da8xx_pinmux_setup(da850_mmcsd0_pins);
328 if (ret)
329 pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
330 " %d\n", ret);
331
332 ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
333 if (ret)
334 pr_warning("da850_evm_init: can not open GPIO %d\n",
335 DA850_MMCSD_CD_PIN);
336 gpio_direction_input(DA850_MMCSD_CD_PIN);
337
338 ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
339 if (ret)
340 pr_warning("da850_evm_init: can not open GPIO %d\n",
341 DA850_MMCSD_WP_PIN);
342 gpio_direction_input(DA850_MMCSD_WP_PIN);
343
344 ret = da8xx_register_mmcsd0(&da850_mmc_config);
345 if (ret)
346 pr_warning("da850_evm_init: mmcsd0 registration failed:"
347 " %d\n", ret);
348 }
349
350 davinci_serial_init(&da850_evm_uart_config);
351
352 i2c_register_board_info(1, da850_evm_i2c_devices,
353 ARRAY_SIZE(da850_evm_i2c_devices));
354
355 /*
356 * shut down uart 0 and 1; they are not used on the board and
357 * accessing them causes endless "too much work in irq53" messages
358 * with arago fs
359 */
360 __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
361 __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);
362
363 ret = da8xx_pinmux_setup(da850_mcasp_pins);
364 if (ret)
365 pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
366 ret);
367
368 da8xx_init_mcasp(0, &da850_evm_snd_data);
369
370 ret = da8xx_pinmux_setup(da850_lcdcntl_pins);
371 if (ret)
372 pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
373 ret);
374
375 ret = da850_lcd_hw_init();
376 if (ret)
377 pr_warning("da850_evm_init: lcd initialization failed: %d\n",
378 ret);
379
380 ret = da8xx_register_lcdc();
381 if (ret)
382 pr_warning("da850_evm_init: lcdc registration failed: %d\n",
383 ret);
384}
385
386#ifdef CONFIG_SERIAL_8250_CONSOLE
387static int __init da850_evm_console_init(void)
388{
389 return add_preferred_console("ttyS", 2, "115200");
390}
391console_initcall(da850_evm_console_init);
392#endif
393
394static __init void da850_evm_irq_init(void)
395{
396 struct davinci_soc_info *soc_info = &davinci_soc_info;
397
398 cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ,
399 soc_info->intc_irq_prios);
400}
401
402static void __init da850_evm_map_io(void)
403{
404 da850_init();
405}
406
407MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM")
408 .phys_io = IO_PHYS,
409 .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
410 .boot_params = (DA8XX_DDR_BASE + 0x100),
411 .map_io = da850_evm_map_io,
412 .init_irq = da850_evm_irq_init,
413 .timer = &davinci_timer,
414 .init_machine = da850_evm_init,
415MACHINE_END
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