2 * Hawkboard.org based on TI's OMAP-L138 Platform
4 * Initial code: Syed Mohammed Khasim
6 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of
10 * any kind, whether express or implied.
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/console.h>
15 #include <linux/interrupt.h>
16 #include <linux/gpio.h>
17 #include <linux/gpio/machine.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/mtd/rawnand.h>
20 #include <linux/platform_data/gpio-davinci.h>
21 #include <linux/platform_data/mtd-davinci.h>
22 #include <linux/platform_data/mtd-davinci-aemif.h>
23 #include <linux/platform_data/ti-aemif.h>
24 #include <linux/regulator/machine.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
29 #include <mach/common.h>
30 #include <mach/da8xx.h>
33 #define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
35 #define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
36 #define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
38 static short omapl138_hawk_mii_pins[] __initdata = {
39 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
40 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
41 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
42 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
47 static __init void omapl138_hawk_config_emac(void)
49 void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
52 struct davinci_soc_info *soc_info = &davinci_soc_info;
54 val = __raw_readl(cfgchip3);
56 ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
58 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
62 /* configure the CFGCHIP3 register for MII */
63 __raw_writel(val, cfgchip3);
64 pr_info("EMAC: MII PHY configured\n");
66 soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
68 ret = da8xx_register_emac();
70 pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
74 * The following EDMA channels/slots are not being used by drivers (for
75 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
76 * hence they are being reserved for codecs on the DSP side.
78 static const s16 da850_dma0_rsv_chans[][2] = {
79 /* (offset, number) */
86 static const s16 da850_dma0_rsv_slots[][2] = {
87 /* (offset, number) */
94 static const s16 da850_dma1_rsv_chans[][2] = {
95 /* (offset, number) */
101 static const s16 da850_dma1_rsv_slots[][2] = {
102 /* (offset, number) */
108 static struct edma_rsv_info da850_edma_cc0_rsv = {
109 .rsv_chans = da850_dma0_rsv_chans,
110 .rsv_slots = da850_dma0_rsv_slots,
113 static struct edma_rsv_info da850_edma_cc1_rsv = {
114 .rsv_chans = da850_dma1_rsv_chans,
115 .rsv_slots = da850_dma1_rsv_slots,
118 static struct edma_rsv_info *da850_edma_rsv[2] = {
123 static const short hawk_mmcsd0_pins[] = {
124 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
125 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
126 DA850_GPIO3_12, DA850_GPIO3_13,
130 #define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
131 #define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
133 static struct gpiod_lookup_table mmc_gpios_table = {
134 .dev_id = "da830-mmc.0",
136 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
138 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
143 static struct davinci_mmc_config da850_mmc_config = {
145 .max_freq = 50000000,
146 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
149 static __init void omapl138_hawk_mmc_init(void)
153 ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
155 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
159 gpiod_add_lookup_table(&mmc_gpios_table);
161 ret = da8xx_register_mmcsd0(&da850_mmc_config);
163 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
164 goto mmc_setup_mmcsd_fail;
169 mmc_setup_mmcsd_fail:
170 gpiod_remove_lookup_table(&mmc_gpios_table);
173 static struct mtd_partition omapl138_hawk_nandflash_partition[] = {
175 .name = "u-boot env",
178 .mask_flags = MTD_WRITEABLE,
182 .offset = MTDPART_OFS_APPEND,
184 .mask_flags = MTD_WRITEABLE,
187 .name = "free space",
188 .offset = MTDPART_OFS_APPEND,
189 .size = MTDPART_SIZ_FULL,
194 static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
204 static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
206 .parts = omapl138_hawk_nandflash_partition,
207 .nr_parts = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
208 .ecc_mode = NAND_ECC_HW,
210 .bbt_options = NAND_BBT_USE_FLASH,
211 .options = NAND_BUSWIDTH_16,
212 .timing = &omapl138_hawk_nandflash_timing,
218 static struct resource omapl138_hawk_nandflash_resource[] = {
220 .start = DA8XX_AEMIF_CS3_BASE,
221 .end = DA8XX_AEMIF_CS3_BASE + SZ_32M,
222 .flags = IORESOURCE_MEM,
225 .start = DA8XX_AEMIF_CTL_BASE,
226 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
227 .flags = IORESOURCE_MEM,
231 static struct resource omapl138_hawk_aemif_resource[] = {
233 .start = DA8XX_AEMIF_CTL_BASE,
234 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
235 .flags = IORESOURCE_MEM,
239 static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = {
245 static struct platform_device omapl138_hawk_aemif_devices[] = {
247 .name = "davinci_nand",
250 .platform_data = &omapl138_hawk_nandflash_data,
252 .resource = omapl138_hawk_nandflash_resource,
253 .num_resources = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
257 static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
259 .abus_data = omapl138_hawk_aemif_abus_data,
260 .num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
261 .sub_devices = omapl138_hawk_aemif_devices,
262 .num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
265 static struct platform_device omapl138_hawk_aemif_device = {
269 .platform_data = &omapl138_hawk_aemif_pdata,
271 .resource = omapl138_hawk_aemif_resource,
272 .num_resources = ARRAY_SIZE(omapl138_hawk_aemif_resource),
275 static const short omapl138_hawk_nand_pins[] = {
276 DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
277 DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
278 DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
279 DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
280 DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
281 DA850_EMA_A_1, DA850_EMA_A_2,
285 static int omapl138_hawk_register_aemif(void)
289 ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
291 pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
293 return platform_device_register(&omapl138_hawk_aemif_device);
296 static const short da850_hawk_usb11_pins[] = {
297 DA850_GPIO2_4, DA850_GPIO6_13,
301 static struct gpiod_lookup_table hawk_usb_gpio_lookup = {
302 .dev_id = "ohci-da8xx",
304 GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, "vbus", 0),
305 GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0),
309 static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
310 /* TPS2087 switch @ 5V */
311 .potpgt = (3 + 1) / 2, /* 3 ms max */
314 static __init void omapl138_hawk_usb_init(void)
318 ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
320 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
324 ret = da8xx_register_usb_phy_clocks();
326 pr_warn("%s: USB PHY CLK registration failed: %d\n",
329 ret = da8xx_register_usb_phy();
331 pr_warn("%s: USB PHY registration failed: %d\n",
334 gpiod_add_lookup_table(&hawk_usb_gpio_lookup);
336 ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
338 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
343 static __init void omapl138_hawk_init(void)
347 da850_register_clocks();
349 ret = da850_register_gpio();
351 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
353 davinci_serial_init(da8xx_serial_device);
355 omapl138_hawk_config_emac();
357 ret = da850_register_edma(da850_edma_rsv);
359 pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
361 omapl138_hawk_mmc_init();
363 omapl138_hawk_usb_init();
365 ret = omapl138_hawk_register_aemif();
367 pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
369 ret = da8xx_register_watchdog();
371 pr_warn("%s: watchdog registration failed: %d\n",
374 ret = da8xx_register_rproc();
376 pr_warn("%s: dsp/rproc registration failed: %d\n",
379 regulator_has_full_constraints();
382 #ifdef CONFIG_SERIAL_8250_CONSOLE
383 static int __init omapl138_hawk_console_init(void)
385 if (!machine_is_omapl138_hawkboard())
388 return add_preferred_console("ttyS", 2, "115200");
390 console_initcall(omapl138_hawk_console_init);
393 static void __init omapl138_hawk_map_io(void)
398 MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
399 .atag_offset = 0x100,
400 .map_io = omapl138_hawk_map_io,
401 .init_irq = da850_init_irq,
402 .init_time = da850_init_time,
403 .init_machine = omapl138_hawk_init,
404 .init_late = davinci_init_late,
405 .dma_zone_size = SZ_128M,
406 .reserve = da8xx_rproc_reserve_cma,