1 // SPDX-License-Identifier: GPL-2.0-only
3 * Hawkboard.org based on TI's OMAP-L138 Platform
5 * Initial code: Syed Mohammed Khasim
7 * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com
9 #include <linux/kernel.h>
10 #include <linux/init.h>
11 #include <linux/console.h>
12 #include <linux/interrupt.h>
13 #include <linux/gpio.h>
14 #include <linux/gpio/machine.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/mtd/rawnand.h>
17 #include <linux/platform_data/gpio-davinci.h>
18 #include <linux/platform_data/mtd-davinci.h>
19 #include <linux/platform_data/mtd-davinci-aemif.h>
20 #include <linux/platform_data/ti-aemif.h>
21 #include <linux/regulator/fixed.h>
22 #include <linux/regulator/machine.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
31 #define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
33 #define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
34 #define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
36 static short omapl138_hawk_mii_pins[] __initdata = {
37 DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
38 DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
39 DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
40 DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
45 static __init void omapl138_hawk_config_emac(void)
47 void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
50 struct davinci_soc_info *soc_info = &davinci_soc_info;
52 val = __raw_readl(cfgchip3);
54 ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
56 pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
60 /* configure the CFGCHIP3 register for MII */
61 __raw_writel(val, cfgchip3);
62 pr_info("EMAC: MII PHY configured\n");
64 soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
66 ret = da8xx_register_emac();
68 pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
72 * The following EDMA channels/slots are not being used by drivers (for
73 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
74 * hence they are being reserved for codecs on the DSP side.
76 static const s16 da850_dma0_rsv_chans[][2] = {
77 /* (offset, number) */
84 static const s16 da850_dma0_rsv_slots[][2] = {
85 /* (offset, number) */
92 static const s16 da850_dma1_rsv_chans[][2] = {
93 /* (offset, number) */
99 static const s16 da850_dma1_rsv_slots[][2] = {
100 /* (offset, number) */
106 static struct edma_rsv_info da850_edma_cc0_rsv = {
107 .rsv_chans = da850_dma0_rsv_chans,
108 .rsv_slots = da850_dma0_rsv_slots,
111 static struct edma_rsv_info da850_edma_cc1_rsv = {
112 .rsv_chans = da850_dma1_rsv_chans,
113 .rsv_slots = da850_dma1_rsv_slots,
116 static struct edma_rsv_info *da850_edma_rsv[2] = {
121 static const short hawk_mmcsd0_pins[] = {
122 DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
123 DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
124 DA850_GPIO3_12, DA850_GPIO3_13,
128 #define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
129 #define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
131 static struct gpiod_lookup_table mmc_gpios_table = {
132 .dev_id = "da830-mmc.0",
134 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
136 GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
141 static struct davinci_mmc_config da850_mmc_config = {
143 .max_freq = 50000000,
144 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
147 static __init void omapl138_hawk_mmc_init(void)
151 ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
153 pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
157 gpiod_add_lookup_table(&mmc_gpios_table);
159 ret = da8xx_register_mmcsd0(&da850_mmc_config);
161 pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
162 goto mmc_setup_mmcsd_fail;
167 mmc_setup_mmcsd_fail:
168 gpiod_remove_lookup_table(&mmc_gpios_table);
171 static struct mtd_partition omapl138_hawk_nandflash_partition[] = {
173 .name = "u-boot env",
176 .mask_flags = MTD_WRITEABLE,
180 .offset = MTDPART_OFS_APPEND,
182 .mask_flags = MTD_WRITEABLE,
185 .name = "free space",
186 .offset = MTDPART_OFS_APPEND,
187 .size = MTDPART_SIZ_FULL,
192 static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
202 static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
204 .parts = omapl138_hawk_nandflash_partition,
205 .nr_parts = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
206 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
208 .bbt_options = NAND_BBT_USE_FLASH,
209 .options = NAND_BUSWIDTH_16,
210 .timing = &omapl138_hawk_nandflash_timing,
216 static struct resource omapl138_hawk_nandflash_resource[] = {
218 .start = DA8XX_AEMIF_CS3_BASE,
219 .end = DA8XX_AEMIF_CS3_BASE + SZ_32M,
220 .flags = IORESOURCE_MEM,
223 .start = DA8XX_AEMIF_CTL_BASE,
224 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
225 .flags = IORESOURCE_MEM,
229 static struct resource omapl138_hawk_aemif_resource[] = {
231 .start = DA8XX_AEMIF_CTL_BASE,
232 .end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
233 .flags = IORESOURCE_MEM,
237 static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = {
243 static struct platform_device omapl138_hawk_aemif_devices[] = {
245 .name = "davinci_nand",
248 .platform_data = &omapl138_hawk_nandflash_data,
250 .resource = omapl138_hawk_nandflash_resource,
251 .num_resources = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
255 static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
257 .abus_data = omapl138_hawk_aemif_abus_data,
258 .num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
259 .sub_devices = omapl138_hawk_aemif_devices,
260 .num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
263 static struct platform_device omapl138_hawk_aemif_device = {
267 .platform_data = &omapl138_hawk_aemif_pdata,
269 .resource = omapl138_hawk_aemif_resource,
270 .num_resources = ARRAY_SIZE(omapl138_hawk_aemif_resource),
273 static const short omapl138_hawk_nand_pins[] = {
274 DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
275 DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
276 DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
277 DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
278 DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
279 DA850_EMA_A_1, DA850_EMA_A_2,
283 static int omapl138_hawk_register_aemif(void)
287 ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
289 pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
291 return platform_device_register(&omapl138_hawk_aemif_device);
294 static const short da850_hawk_usb11_pins[] = {
295 DA850_GPIO2_4, DA850_GPIO6_13,
299 static struct regulator_consumer_supply hawk_usb_supplies[] = {
300 REGULATOR_SUPPLY("vbus", NULL),
303 static struct regulator_init_data hawk_usb_vbus_data = {
304 .consumer_supplies = hawk_usb_supplies,
305 .num_consumer_supplies = ARRAY_SIZE(hawk_usb_supplies),
307 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
311 static struct fixed_voltage_config hawk_usb_vbus = {
312 .supply_name = "vbus",
313 .microvolts = 3300000,
314 .init_data = &hawk_usb_vbus_data,
317 static struct platform_device hawk_usb_vbus_device = {
318 .name = "reg-fixed-voltage",
321 .platform_data = &hawk_usb_vbus,
325 static struct gpiod_lookup_table hawk_usb_oc_gpio_lookup = {
326 .dev_id = "ohci-da8xx",
328 GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0),
333 static struct gpiod_lookup_table hawk_usb_vbus_gpio_lookup = {
334 .dev_id = "reg-fixed-voltage.0",
336 GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, NULL, 0),
341 static struct gpiod_lookup_table *hawk_usb_gpio_lookups[] = {
342 &hawk_usb_oc_gpio_lookup,
343 &hawk_usb_vbus_gpio_lookup,
346 static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
347 /* TPS2087 switch @ 5V */
348 .potpgt = (3 + 1) / 2, /* 3 ms max */
351 static __init void omapl138_hawk_usb_init(void)
355 ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
357 pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
361 ret = da8xx_register_usb_phy_clocks();
363 pr_warn("%s: USB PHY CLK registration failed: %d\n",
366 gpiod_add_lookup_tables(hawk_usb_gpio_lookups,
367 ARRAY_SIZE(hawk_usb_gpio_lookups));
369 ret = da8xx_register_usb_phy();
371 pr_warn("%s: USB PHY registration failed: %d\n",
374 ret = platform_device_register(&hawk_usb_vbus_device);
376 pr_warn("%s: Unable to register the vbus supply\n", __func__);
380 ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
382 pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
387 static __init void omapl138_hawk_init(void)
391 da850_register_clocks();
393 ret = da850_register_gpio();
395 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
397 davinci_serial_init(da8xx_serial_device);
399 omapl138_hawk_config_emac();
401 ret = da850_register_edma(da850_edma_rsv);
403 pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
405 omapl138_hawk_mmc_init();
407 omapl138_hawk_usb_init();
409 ret = omapl138_hawk_register_aemif();
411 pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
413 ret = da8xx_register_watchdog();
415 pr_warn("%s: watchdog registration failed: %d\n",
418 ret = da8xx_register_rproc();
420 pr_warn("%s: dsp/rproc registration failed: %d\n",
423 regulator_has_full_constraints();
426 #ifdef CONFIG_SERIAL_8250_CONSOLE
427 static int __init omapl138_hawk_console_init(void)
429 if (!machine_is_omapl138_hawkboard())
432 return add_preferred_console("ttyS", 2, "115200");
434 console_initcall(omapl138_hawk_console_init);
437 static void __init omapl138_hawk_map_io(void)
442 MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
443 .atag_offset = 0x100,
444 .map_io = omapl138_hawk_map_io,
445 .init_irq = da850_init_irq,
446 .init_time = da850_init_time,
447 .init_machine = omapl138_hawk_init,
448 .init_late = davinci_init_late,
449 .dma_zone_size = SZ_128M,
450 .reserve = da8xx_rproc_reserve_cma,