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Thomas Gleixnerc942fdd2019-05-27 08:55:06 +02001// SPDX-License-Identifier: GPL-2.0-or-later
Daniel Mack9a4cd7a2008-07-05 10:02:53 +02002/*
3 * Copyright (C) 2000 Deep Blue Solutions Ltd
4 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
5 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
Daniel Mack84677d12009-11-19 12:02:08 +01006 * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
Daniel Mack9a4cd7a2008-07-05 10:02:53 +02007 */
8
9#include <linux/types.h>
10#include <linux/init.h>
11#include <linux/kernel.h>
12#include <linux/memory.h>
Magnus Lilja32117052009-04-14 22:00:07 +020013#include <linux/platform_device.h>
14#include <linux/gpio.h>
Paul Gortmaker9e907412011-07-31 19:01:27 -040015#include <linux/moduleparam.h>
Magnus Lilja32117052009-04-14 22:00:07 +020016#include <linux/smsc911x.h>
Daniel Mack84677d12009-11-19 12:02:08 +010017#include <linux/mfd/mc13783.h>
18#include <linux/spi/spi.h>
Daniel Macka050c8e2009-11-19 12:02:09 +010019#include <linux/usb/otg.h>
20#include <linux/usb/ulpi.h>
Daniel Mack6d3e6602009-11-19 12:02:11 +010021#include <linux/mtd/physmap.h>
Sascha Hauer4bd597b2011-01-03 11:30:28 +010022#include <linux/delay.h>
Fabio Estevamda21d4d2012-04-02 10:39:44 -030023#include <linux/regulator/machine.h>
24#include <linux/regulator/fixed.h>
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020025
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020026#include <asm/mach-types.h>
27#include <asm/mach/arch.h>
Juergen Beisert9e8a30d2008-07-05 10:02:53 +020028#include <asm/mach/time.h>
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020029#include <asm/mach/map.h>
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020030#include <asm/page.h>
31#include <asm/setup.h>
Daniel Mack84677d12009-11-19 12:02:08 +010032
Shawn Guo3ed0bcb2012-09-13 09:37:49 +080033#include "board-mx31lite.h"
Shawn Guoe3372472012-09-13 21:01:00 +080034#include "common.h"
Uwe Kleine-Königa2ceeef2010-06-16 12:23:11 +020035#include "devices-imx31.h"
Shawn Guo641dfe82014-05-19 20:41:52 +080036#include "ehci.h"
Shawn Guo50f2de62012-09-14 14:14:45 +080037#include "hardware.h"
Shawn Guo267dd342012-09-13 13:26:00 +080038#include "iomux-mx3.h"
Shawn Guo39ef6342012-09-13 21:46:09 +080039#include "ulpi.h"
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020040
41/*
Daniel Mackb7d91a62009-11-19 12:02:06 +010042 * This file contains the module-specific initialization routines.
Daniel Mack9a4cd7a2008-07-05 10:02:53 +020043 */
44
Magnus Liljaa854b8a2009-04-14 22:00:03 +020045static unsigned int mx31lite_pins[] = {
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +030046 /* UART1 */
47 MX31_PIN_CTS1__CTS1,
48 MX31_PIN_RTS1__RTS1,
49 MX31_PIN_TXD1__TXD1,
50 MX31_PIN_RXD1__RXD1,
51 /* SPI 0 */
52 MX31_PIN_CSPI1_SCLK__SCLK,
53 MX31_PIN_CSPI1_MOSI__MOSI,
54 MX31_PIN_CSPI1_MISO__MISO,
55 MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
56 MX31_PIN_CSPI1_SS0__SS0,
57 MX31_PIN_CSPI1_SS1__SS1,
58 MX31_PIN_CSPI1_SS2__SS2,
Magnus Lilja32117052009-04-14 22:00:07 +020059 /* LAN9117 IRQ pin */
60 IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
Daniel Mack84677d12009-11-19 12:02:08 +010061 /* SPI 1 */
62 MX31_PIN_CSPI2_SCLK__SCLK,
63 MX31_PIN_CSPI2_MOSI__MOSI,
64 MX31_PIN_CSPI2_MISO__MISO,
65 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
66 MX31_PIN_CSPI2_SS0__SS0,
67 MX31_PIN_CSPI2_SS1__SS1,
68 MX31_PIN_CSPI2_SS2__SS2,
Magnus Liljaa854b8a2009-04-14 22:00:03 +020069};
70
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +030071/* UART */
72static const struct imxuart_platform_data uart_pdata __initconst = {
73 .flags = IMXUART_HAVE_RTSCTS,
74};
75
76/* SPI */
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +030077static const struct spi_imx_master spi0_pdata __initconst = {
Trent Piephofe1bd782018-04-02 13:06:05 -070078 .num_chipselect = 3,
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +030079};
80
Uwe Kleine-Königa2ceeef2010-06-16 12:23:11 +020081static const struct mxc_nand_platform_data
82mx31lite_nand_board_info __initconst = {
Magnus Lilja183c7ff2009-05-04 22:18:09 +020083 .width = 1,
84 .hw_ecc = 1,
85};
86
Magnus Lilja32117052009-04-14 22:00:07 +020087static struct smsc911x_platform_config smsc911x_config = {
88 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
89 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
90 .flags = SMSC911X_USE_16BIT,
91};
92
93static struct resource smsc911x_resources[] = {
Sascha Hauer3f4f54b2009-06-23 12:12:00 +020094 {
Uwe Kleine-Königf568dd72009-12-09 11:57:21 +010095 .start = MX31_CS4_BASE_ADDR,
96 .end = MX31_CS4_BASE_ADDR + 0x100,
Magnus Lilja32117052009-04-14 22:00:07 +020097 .flags = IORESOURCE_MEM,
Sascha Hauer3f4f54b2009-06-23 12:12:00 +020098 }, {
Shawn Guoed175342011-12-02 20:00:33 +080099 /* irq number is run-time assigned */
Magnus Lilja32117052009-04-14 22:00:07 +0200100 .flags = IORESOURCE_IRQ,
101 },
102};
103
104static struct platform_device smsc911x_device = {
105 .name = "smsc911x",
106 .id = -1,
107 .num_resources = ARRAY_SIZE(smsc911x_resources),
108 .resource = smsc911x_resources,
109 .dev = {
110 .platform_data = &smsc911x_config,
111 },
112};
113
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200114/*
Daniel Mack84677d12009-11-19 12:02:08 +0100115 * SPI
116 *
117 * The MC13783 is the only hard-wired SPI device on the module.
118 */
119
Uwe Kleine-König06606ff2010-06-22 10:09:14 +0200120static const struct spi_imx_master spi1_pdata __initconst = {
Trent Piephofe1bd782018-04-02 13:06:05 -0700121 .num_chipselect = 1,
Daniel Mack84677d12009-11-19 12:02:08 +0100122};
123
David Jander58363722011-02-10 10:59:44 +0100124static struct mc13xxx_platform_data mc13783_pdata __initdata = {
Philippe Rétornaz46621eb2011-09-18 17:52:33 +0200125 .flags = MC13XXX_USE_RTC,
Daniel Mack84677d12009-11-19 12:02:08 +0100126};
127
128static struct spi_board_info mc13783_spi_dev __initdata = {
129 .modalias = "mc13783",
130 .max_speed_hz = 1000000,
131 .bus_num = 1,
132 .chip_select = 0,
133 .platform_data = &mc13783_pdata,
Shawn Guoed175342011-12-02 20:00:33 +0800134 /* irq number is run-time assigned */
Daniel Mack84677d12009-11-19 12:02:08 +0100135};
136
137/*
Daniel Macka050c8e2009-11-19 12:02:09 +0100138 * USB
139 */
140
141#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
142 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
143
144static int usbh2_init(struct platform_device *pdev)
145{
146 int pins[] = {
147 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
148 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
149 MX31_PIN_USBH2_CLK__USBH2_CLK,
150 MX31_PIN_USBH2_DIR__USBH2_DIR,
151 MX31_PIN_USBH2_NXT__USBH2_NXT,
152 MX31_PIN_USBH2_STP__USBH2_STP,
153 };
154
155 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
156
157 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
159 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
160 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
161 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
162 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
163 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
164 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
165 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
166 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
167 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
168 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
169
170 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
171
172 /* chip select */
173 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
174 "USBH2_CS");
175 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
176 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
177
Sascha Hauer4bd597b2011-01-03 11:30:28 +0100178 mdelay(10);
179
180 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
Daniel Macka050c8e2009-11-19 12:02:09 +0100181}
182
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100183static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
Daniel Macka050c8e2009-11-19 12:02:09 +0100184 .init = usbh2_init,
185 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
Daniel Macka050c8e2009-11-19 12:02:09 +0100186};
187
188/*
Daniel Mack6d3e6602009-11-19 12:02:11 +0100189 * NOR flash
190 */
191
192static struct physmap_flash_data nor_flash_data = {
193 .width = 2,
194};
195
196static struct resource nor_flash_resource = {
197 .start = 0xa0000000,
198 .end = 0xa1ffffff,
199 .flags = IORESOURCE_MEM,
200};
201
202static struct platform_device physmap_flash_device = {
203 .name = "physmap-flash",
204 .id = 0,
205 .dev = {
206 .platform_data = &nor_flash_data,
207 },
208 .resource = &nor_flash_resource,
209 .num_resources = 1,
210};
211
Daniel Mack6d3e6602009-11-19 12:02:11 +0100212/*
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200213 * This structure defines the MX31 memory map.
214 */
215static struct map_desc mx31lite_io_desc[] __initdata = {
216 {
Arnd Bergmannf25d6962012-09-14 20:14:01 +0000217 .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
Uwe Kleine-Königf568dd72009-12-09 11:57:21 +0100218 .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
219 .length = MX31_CS4_SIZE,
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200220 .type = MT_DEVICE
221 }
222};
223
224/*
225 * Set up static virtual mappings.
226 */
Marco Franchi2e845e52017-09-25 15:55:59 -0300227static void __init mx31lite_map_io(void)
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200228{
Sascha Hauercd4a05f2009-04-02 22:32:10 +0200229 mx31_map_io();
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200230 iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
231}
232
Daniel Mackb7d91a62009-11-19 12:02:06 +0100233static int mx31lite_baseboard;
234core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
235
Fabio Estevamda21d4d2012-04-02 10:39:44 -0300236static struct regulator_consumer_supply dummy_supplies[] = {
237 REGULATOR_SUPPLY("vdd33a", "smsc911x"),
238 REGULATOR_SUPPLY("vddvario", "smsc911x"),
239};
240
Uwe Kleine-Könige134fb22011-02-11 10:23:19 +0100241static void __init mx31lite_init(void)
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200242{
Shawn Guob78d8e52011-06-06 00:07:55 +0800243 imx31_soc_init();
244
Magnus Liljaa854b8a2009-04-14 22:00:03 +0200245 mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
246 "mx31lite");
247
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +0300248 imx31_add_imx_uart0(&uart_pdata);
249 imx31_add_spi_imx0(&spi0_pdata);
250
Daniel Mack6d3e6602009-11-19 12:02:11 +0100251 /* NOR and NAND flash */
252 platform_device_register(&physmap_flash_device);
Uwe Kleine-Königa2ceeef2010-06-16 12:23:11 +0200253 imx31_add_mxc_nand(&mx31lite_nand_board_info);
Daniel Mack6d3e6602009-11-19 12:02:11 +0100254
Uwe Kleine-König06606ff2010-06-22 10:09:14 +0200255 imx31_add_spi_imx1(&spi1_pdata);
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +0300256
257 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
258}
259
260static void __init mx31lite_late(void)
261{
262 int ret;
263
264 if (mx31lite_baseboard == MX31LITE_DB)
265 mx31lite_db_init();
266
Shawn Guoed175342011-12-02 20:00:33 +0800267 mc13783_spi_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
Daniel Mack84677d12009-11-19 12:02:08 +0100268 spi_register_board_info(&mc13783_spi_dev, 1);
Magnus Lilja32117052009-04-14 22:00:07 +0200269
Daniel Macka050c8e2009-11-19 12:02:09 +0100270 /* USB */
Sascha Hauer48f6b092011-03-02 09:27:42 +0100271 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
272 ULPI_OTG_DRVVBUS_EXT);
273 if (usbh2_pdata.otg)
274 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
Daniel Macka050c8e2009-11-19 12:02:09 +0100275
Magnus Lilja32117052009-04-14 22:00:07 +0200276 /* SMSC9117 IRQ pin */
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200277 ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
278 if (ret)
Joe Perches75fd32b2014-09-13 11:31:15 -0700279 pr_warn("could not get LAN irq gpio\n");
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200280 else {
281 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
Shawn Guoed175342011-12-02 20:00:33 +0800282 smsc911x_resources[1].start =
283 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
284 smsc911x_resources[1].end =
285 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SFS6));
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200286 platform_device_register(&smsc911x_device);
287 }
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200288}
289
Juergen Beisert9e8a30d2008-07-05 10:02:53 +0200290static void __init mx31lite_timer_init(void)
291{
Sascha Hauer30c730f2009-02-16 14:36:49 +0100292 mx31_clocks_init(26000000);
Juergen Beisert9e8a30d2008-07-05 10:02:53 +0200293}
294
Daniel Mackb7d91a62009-11-19 12:02:06 +0100295MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200296 /* Maintainer: Freescale Semiconductor, Inc. */
Nicolas Pitredc8f1902011-07-05 22:38:12 -0400297 .atag_offset = 0x100,
Uwe Kleine-König97976e22011-02-07 16:35:20 +0100298 .map_io = mx31lite_map_io,
299 .init_early = imx31_init_early,
300 .init_irq = mx31_init_irq,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700301 .init_time = mx31lite_timer_init,
Uwe Kleine-Könige134fb22011-02-11 10:23:19 +0100302 .init_machine = mx31lite_init,
Vladimir Zapolskiy4ed9bb22016-09-19 04:37:14 +0300303 .init_late = mx31lite_late,
Russell King65ea7882011-11-06 17:12:08 +0000304 .restart = mxc_restart,
Daniel Mack9a4cd7a2008-07-05 10:02:53 +0200305MACHINE_END