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/fixed.h>
25 #include <linux/regulator/machine.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
30 #include <mach/common.h>
31 #include <mach/da8xx.h>
34 #define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
36 #define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
37 #define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
39 static short omapl138_hawk_mii_pins
[] __initdata
= {
40 DA850_MII_TXEN
, DA850_MII_TXCLK
, DA850_MII_COL
, DA850_MII_TXD_3
,
41 DA850_MII_TXD_2
, DA850_MII_TXD_1
, DA850_MII_TXD_0
, DA850_MII_RXER
,
42 DA850_MII_CRS
, DA850_MII_RXCLK
, DA850_MII_RXDV
, DA850_MII_RXD_3
,
43 DA850_MII_RXD_2
, DA850_MII_RXD_1
, DA850_MII_RXD_0
, DA850_MDIO_CLK
,
48 static __init
void omapl138_hawk_config_emac(void)
50 void __iomem
*cfgchip3
= DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG
);
53 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
55 val
= __raw_readl(cfgchip3
);
57 ret
= davinci_cfg_reg_list(omapl138_hawk_mii_pins
);
59 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__
, ret
);
63 /* configure the CFGCHIP3 register for MII */
64 __raw_writel(val
, cfgchip3
);
65 pr_info("EMAC: MII PHY configured\n");
67 soc_info
->emac_pdata
->phy_id
= HAWKBOARD_PHY_ID
;
69 ret
= da8xx_register_emac();
71 pr_warn("%s: EMAC registration failed: %d\n", __func__
, ret
);
75 * The following EDMA channels/slots are not being used by drivers (for
76 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
77 * hence they are being reserved for codecs on the DSP side.
79 static const s16 da850_dma0_rsv_chans
[][2] = {
80 /* (offset, number) */
87 static const s16 da850_dma0_rsv_slots
[][2] = {
88 /* (offset, number) */
95 static const s16 da850_dma1_rsv_chans
[][2] = {
96 /* (offset, number) */
102 static const s16 da850_dma1_rsv_slots
[][2] = {
103 /* (offset, number) */
109 static struct edma_rsv_info da850_edma_cc0_rsv
= {
110 .rsv_chans
= da850_dma0_rsv_chans
,
111 .rsv_slots
= da850_dma0_rsv_slots
,
114 static struct edma_rsv_info da850_edma_cc1_rsv
= {
115 .rsv_chans
= da850_dma1_rsv_chans
,
116 .rsv_slots
= da850_dma1_rsv_slots
,
119 static struct edma_rsv_info
*da850_edma_rsv
[2] = {
124 static const short hawk_mmcsd0_pins
[] = {
125 DA850_MMCSD0_DAT_0
, DA850_MMCSD0_DAT_1
, DA850_MMCSD0_DAT_2
,
126 DA850_MMCSD0_DAT_3
, DA850_MMCSD0_CLK
, DA850_MMCSD0_CMD
,
127 DA850_GPIO3_12
, DA850_GPIO3_13
,
131 #define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
132 #define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
134 static struct gpiod_lookup_table mmc_gpios_table
= {
135 .dev_id
= "da830-mmc.0",
137 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN
, "cd",
139 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN
, "wp",
144 static struct davinci_mmc_config da850_mmc_config
= {
146 .max_freq
= 50000000,
147 .caps
= MMC_CAP_MMC_HIGHSPEED
| MMC_CAP_SD_HIGHSPEED
,
150 static __init
void omapl138_hawk_mmc_init(void)
154 ret
= davinci_cfg_reg_list(hawk_mmcsd0_pins
);
156 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__
, ret
);
160 gpiod_add_lookup_table(&mmc_gpios_table
);
162 ret
= da8xx_register_mmcsd0(&da850_mmc_config
);
164 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__
, ret
);
165 goto mmc_setup_mmcsd_fail
;
170 mmc_setup_mmcsd_fail
:
171 gpiod_remove_lookup_table(&mmc_gpios_table
);
174 static struct mtd_partition omapl138_hawk_nandflash_partition
[] = {
176 .name
= "u-boot env",
179 .mask_flags
= MTD_WRITEABLE
,
183 .offset
= MTDPART_OFS_APPEND
,
185 .mask_flags
= MTD_WRITEABLE
,
188 .name
= "free space",
189 .offset
= MTDPART_OFS_APPEND
,
190 .size
= MTDPART_SIZ_FULL
,
195 static struct davinci_aemif_timing omapl138_hawk_nandflash_timing
= {
205 static struct davinci_nand_pdata omapl138_hawk_nandflash_data
= {
207 .parts
= omapl138_hawk_nandflash_partition
,
208 .nr_parts
= ARRAY_SIZE(omapl138_hawk_nandflash_partition
),
209 .ecc_mode
= NAND_ECC_HW
,
211 .bbt_options
= NAND_BBT_USE_FLASH
,
212 .options
= NAND_BUSWIDTH_16
,
213 .timing
= &omapl138_hawk_nandflash_timing
,
219 static struct resource omapl138_hawk_nandflash_resource
[] = {
221 .start
= DA8XX_AEMIF_CS3_BASE
,
222 .end
= DA8XX_AEMIF_CS3_BASE
+ SZ_32M
,
223 .flags
= IORESOURCE_MEM
,
226 .start
= DA8XX_AEMIF_CTL_BASE
,
227 .end
= DA8XX_AEMIF_CTL_BASE
+ SZ_32K
,
228 .flags
= IORESOURCE_MEM
,
232 static struct resource omapl138_hawk_aemif_resource
[] = {
234 .start
= DA8XX_AEMIF_CTL_BASE
,
235 .end
= DA8XX_AEMIF_CTL_BASE
+ SZ_32K
,
236 .flags
= IORESOURCE_MEM
,
240 static struct aemif_abus_data omapl138_hawk_aemif_abus_data
[] = {
246 static struct platform_device omapl138_hawk_aemif_devices
[] = {
248 .name
= "davinci_nand",
251 .platform_data
= &omapl138_hawk_nandflash_data
,
253 .resource
= omapl138_hawk_nandflash_resource
,
254 .num_resources
= ARRAY_SIZE(omapl138_hawk_nandflash_resource
),
258 static struct aemif_platform_data omapl138_hawk_aemif_pdata
= {
260 .abus_data
= omapl138_hawk_aemif_abus_data
,
261 .num_abus_data
= ARRAY_SIZE(omapl138_hawk_aemif_abus_data
),
262 .sub_devices
= omapl138_hawk_aemif_devices
,
263 .num_sub_devices
= ARRAY_SIZE(omapl138_hawk_aemif_devices
),
266 static struct platform_device omapl138_hawk_aemif_device
= {
270 .platform_data
= &omapl138_hawk_aemif_pdata
,
272 .resource
= omapl138_hawk_aemif_resource
,
273 .num_resources
= ARRAY_SIZE(omapl138_hawk_aemif_resource
),
276 static const short omapl138_hawk_nand_pins
[] = {
277 DA850_EMA_WAIT_1
, DA850_NEMA_OE
, DA850_NEMA_WE
, DA850_NEMA_CS_3
,
278 DA850_EMA_D_0
, DA850_EMA_D_1
, DA850_EMA_D_2
, DA850_EMA_D_3
,
279 DA850_EMA_D_4
, DA850_EMA_D_5
, DA850_EMA_D_6
, DA850_EMA_D_7
,
280 DA850_EMA_D_8
, DA850_EMA_D_9
, DA850_EMA_D_10
, DA850_EMA_D_11
,
281 DA850_EMA_D_12
, DA850_EMA_D_13
, DA850_EMA_D_14
, DA850_EMA_D_15
,
282 DA850_EMA_A_1
, DA850_EMA_A_2
,
286 static int omapl138_hawk_register_aemif(void)
290 ret
= davinci_cfg_reg_list(omapl138_hawk_nand_pins
);
292 pr_warn("%s: NAND mux setup failed: %d\n", __func__
, ret
);
294 return platform_device_register(&omapl138_hawk_aemif_device
);
297 static const short da850_hawk_usb11_pins
[] = {
298 DA850_GPIO2_4
, DA850_GPIO6_13
,
302 static struct regulator_consumer_supply hawk_usb_supplies
[] = {
303 REGULATOR_SUPPLY("vbus", NULL
),
306 static struct regulator_init_data hawk_usb_vbus_data
= {
307 .consumer_supplies
= hawk_usb_supplies
,
308 .num_consumer_supplies
= ARRAY_SIZE(hawk_usb_supplies
),
310 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
314 static struct fixed_voltage_config hawk_usb_vbus
= {
315 .supply_name
= "vbus",
316 .microvolts
= 3300000,
317 .init_data
= &hawk_usb_vbus_data
,
320 static struct platform_device hawk_usb_vbus_device
= {
321 .name
= "reg-fixed-voltage",
324 .platform_data
= &hawk_usb_vbus
,
328 static struct gpiod_lookup_table hawk_usb_oc_gpio_lookup
= {
329 .dev_id
= "ohci-da8xx",
331 GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN
, "oc", 0),
336 static struct gpiod_lookup_table hawk_usb_vbus_gpio_lookup
= {
337 .dev_id
= "reg-fixed-voltage.0",
339 GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN
, NULL
, 0),
344 static struct gpiod_lookup_table
*hawk_usb_gpio_lookups
[] = {
345 &hawk_usb_oc_gpio_lookup
,
346 &hawk_usb_vbus_gpio_lookup
,
349 static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata
= {
350 /* TPS2087 switch @ 5V */
351 .potpgt
= (3 + 1) / 2, /* 3 ms max */
354 static __init
void omapl138_hawk_usb_init(void)
358 ret
= davinci_cfg_reg_list(da850_hawk_usb11_pins
);
360 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__
, ret
);
364 ret
= da8xx_register_usb_phy_clocks();
366 pr_warn("%s: USB PHY CLK registration failed: %d\n",
369 gpiod_add_lookup_tables(hawk_usb_gpio_lookups
,
370 ARRAY_SIZE(hawk_usb_gpio_lookups
));
372 ret
= da8xx_register_usb_phy();
374 pr_warn("%s: USB PHY registration failed: %d\n",
377 ret
= platform_device_register(&hawk_usb_vbus_device
);
379 pr_warn("%s: Unable to register the vbus supply\n", __func__
);
383 ret
= da8xx_register_usb11(&omapl138_hawk_usb11_pdata
);
385 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__
, ret
);
390 static __init
void omapl138_hawk_init(void)
394 da850_register_clocks();
396 ret
= da850_register_gpio();
398 pr_warn("%s: GPIO init failed: %d\n", __func__
, ret
);
400 davinci_serial_init(da8xx_serial_device
);
402 omapl138_hawk_config_emac();
404 ret
= da850_register_edma(da850_edma_rsv
);
406 pr_warn("%s: EDMA registration failed: %d\n", __func__
, ret
);
408 omapl138_hawk_mmc_init();
410 omapl138_hawk_usb_init();
412 ret
= omapl138_hawk_register_aemif();
414 pr_warn("%s: aemif registration failed: %d\n", __func__
, ret
);
416 ret
= da8xx_register_watchdog();
418 pr_warn("%s: watchdog registration failed: %d\n",
421 ret
= da8xx_register_rproc();
423 pr_warn("%s: dsp/rproc registration failed: %d\n",
426 regulator_has_full_constraints();
429 #ifdef CONFIG_SERIAL_8250_CONSOLE
430 static int __init
omapl138_hawk_console_init(void)
432 if (!machine_is_omapl138_hawkboard())
435 return add_preferred_console("ttyS", 2, "115200");
437 console_initcall(omapl138_hawk_console_init
);
440 static void __init
omapl138_hawk_map_io(void)
445 MACHINE_START(OMAPL138_HAWKBOARD
, "AM18x/OMAP-L138 Hawkboard")
446 .atag_offset
= 0x100,
447 .map_io
= omapl138_hawk_map_io
,
448 .init_irq
= da850_init_irq
,
449 .init_time
= da850_init_time
,
450 .init_machine
= omapl138_hawk_init
,
451 .init_late
= davinci_init_late
,
452 .dma_zone_size
= SZ_128M
,
453 .reserve
= da8xx_rproc_reserve_cma
,