Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. |
| 3 | */ |
| 4 | |
| 5 | /* |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | |
| 16 | * You should have received a copy of the GNU General Public License along |
| 17 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | */ |
| 20 | |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/clk.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/gpio.h> |
| 25 | #include <linux/smsc911x.h> |
| 26 | |
| 27 | #include <mach/common.h> |
| 28 | #include <mach/hardware.h> |
| 29 | #include <mach/iomux-mx53.h> |
| 30 | |
| 31 | #include <asm/mach-types.h> |
| 32 | #include <asm/mach/arch.h> |
| 33 | #include <asm/mach/time.h> |
| 34 | |
| 35 | #include "crm_regs.h" |
| 36 | #include "devices-imx53.h" |
| 37 | |
| 38 | #define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31) |
Andre Silva | e3a58be | 2011-06-13 14:31:57 -0300 | [diff] [blame] | 39 | #define ARD_SD1_CD IMX_GPIO_NR(1, 1) |
| 40 | #define ARD_SD1_WP IMX_GPIO_NR(1, 9) |
Fabio Estevam | d23cb57 | 2011-06-25 13:28:53 -0300 | [diff] [blame] | 41 | #define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3) |
Daiane Angolini | 2a90a69 | 2011-06-30 14:41:46 -0300 | [diff] [blame] | 42 | #define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0) |
| 43 | #define ARD_HOME IMX_GPIO_NR(5, 10) |
| 44 | #define ARD_BACK IMX_GPIO_NR(5, 11) |
| 45 | #define ARD_PROG IMX_GPIO_NR(5, 12) |
| 46 | #define ARD_VOLUMEUP IMX_GPIO_NR(5, 13) |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 47 | |
| 48 | static iomux_v3_cfg_t mx53_ard_pads[] = { |
| 49 | /* UART1 */ |
| 50 | MX53_PAD_PATA_DIOW__UART1_TXD_MUX, |
| 51 | MX53_PAD_PATA_DMACK__UART1_RXD_MUX, |
| 52 | /* WEIM for CS1 */ |
| 53 | MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */ |
| 54 | MX53_PAD_EIM_D16__EMI_WEIM_D_16, |
| 55 | MX53_PAD_EIM_D17__EMI_WEIM_D_17, |
| 56 | MX53_PAD_EIM_D18__EMI_WEIM_D_18, |
| 57 | MX53_PAD_EIM_D19__EMI_WEIM_D_19, |
| 58 | MX53_PAD_EIM_D20__EMI_WEIM_D_20, |
| 59 | MX53_PAD_EIM_D21__EMI_WEIM_D_21, |
| 60 | MX53_PAD_EIM_D22__EMI_WEIM_D_22, |
| 61 | MX53_PAD_EIM_D23__EMI_WEIM_D_23, |
| 62 | MX53_PAD_EIM_D24__EMI_WEIM_D_24, |
| 63 | MX53_PAD_EIM_D25__EMI_WEIM_D_25, |
| 64 | MX53_PAD_EIM_D26__EMI_WEIM_D_26, |
| 65 | MX53_PAD_EIM_D27__EMI_WEIM_D_27, |
| 66 | MX53_PAD_EIM_D28__EMI_WEIM_D_28, |
| 67 | MX53_PAD_EIM_D29__EMI_WEIM_D_29, |
| 68 | MX53_PAD_EIM_D30__EMI_WEIM_D_30, |
| 69 | MX53_PAD_EIM_D31__EMI_WEIM_D_31, |
| 70 | MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0, |
| 71 | MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1, |
| 72 | MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2, |
| 73 | MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3, |
| 74 | MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4, |
| 75 | MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5, |
| 76 | MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6, |
| 77 | MX53_PAD_EIM_OE__EMI_WEIM_OE, |
| 78 | MX53_PAD_EIM_RW__EMI_WEIM_RW, |
| 79 | MX53_PAD_EIM_CS1__EMI_WEIM_CS_1, |
Andre Silva | e3a58be | 2011-06-13 14:31:57 -0300 | [diff] [blame] | 80 | /* SDHC1 */ |
| 81 | MX53_PAD_SD1_CMD__ESDHC1_CMD, |
| 82 | MX53_PAD_SD1_CLK__ESDHC1_CLK, |
| 83 | MX53_PAD_SD1_DATA0__ESDHC1_DAT0, |
| 84 | MX53_PAD_SD1_DATA1__ESDHC1_DAT1, |
| 85 | MX53_PAD_SD1_DATA2__ESDHC1_DAT2, |
| 86 | MX53_PAD_SD1_DATA3__ESDHC1_DAT3, |
| 87 | MX53_PAD_PATA_DATA8__ESDHC1_DAT4, |
| 88 | MX53_PAD_PATA_DATA9__ESDHC1_DAT5, |
| 89 | MX53_PAD_PATA_DATA10__ESDHC1_DAT6, |
| 90 | MX53_PAD_PATA_DATA11__ESDHC1_DAT7, |
| 91 | MX53_PAD_GPIO_1__GPIO1_1, |
| 92 | MX53_PAD_GPIO_9__GPIO1_9, |
Andre Silva | 8dd7b81 | 2011-06-22 16:33:05 -0300 | [diff] [blame] | 93 | /* I2C2 */ |
| 94 | MX53_PAD_EIM_EB2__I2C2_SCL, |
| 95 | MX53_PAD_KEY_ROW3__I2C2_SDA, |
| 96 | /* I2C3 */ |
| 97 | MX53_PAD_GPIO_3__I2C3_SCL, |
| 98 | MX53_PAD_GPIO_16__I2C3_SDA, |
Daiane Angolini | 2a90a69 | 2011-06-30 14:41:46 -0300 | [diff] [blame] | 99 | /* GPIO */ |
| 100 | MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */ |
| 101 | MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */ |
| 102 | MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */ |
| 103 | MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */ |
| 104 | MX53_PAD_GPIO_10__GPIO4_0, /* vol down */ |
| 105 | }; |
| 106 | |
| 107 | #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \ |
| 108 | { \ |
| 109 | .gpio = gpio_num, \ |
| 110 | .type = EV_KEY, \ |
| 111 | .code = ev_code, \ |
| 112 | .active_low = act_low, \ |
| 113 | .desc = "btn " descr, \ |
| 114 | .wakeup = wake, \ |
| 115 | } |
| 116 | |
| 117 | static struct gpio_keys_button ard_buttons[] = { |
| 118 | GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0), |
| 119 | GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0), |
| 120 | GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0), |
| 121 | GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0), |
| 122 | GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0), |
| 123 | }; |
| 124 | |
| 125 | static const struct gpio_keys_platform_data ard_button_data __initconst = { |
| 126 | .buttons = ard_buttons, |
| 127 | .nbuttons = ARRAY_SIZE(ard_buttons), |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 128 | }; |
| 129 | |
| 130 | static struct resource ard_smsc911x_resources[] = { |
| 131 | { |
| 132 | .start = MX53_CS1_64MB_BASE_ADDR, |
| 133 | .end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1, |
| 134 | .flags = IORESOURCE_MEM, |
| 135 | }, |
| 136 | { |
Shawn Guo | e309fb1 | 2011-08-14 00:14:01 +0800 | [diff] [blame] | 137 | .start = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B), |
| 138 | .end = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B), |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 139 | .flags = IORESOURCE_IRQ, |
| 140 | }, |
| 141 | }; |
| 142 | |
| 143 | struct smsc911x_platform_config ard_smsc911x_config = { |
| 144 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, |
| 145 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, |
| 146 | .flags = SMSC911X_USE_32BIT, |
| 147 | }; |
| 148 | |
| 149 | static struct platform_device ard_smsc_lan9220_device = { |
| 150 | .name = "smsc911x", |
| 151 | .id = -1, |
| 152 | .num_resources = ARRAY_SIZE(ard_smsc911x_resources), |
| 153 | .resource = ard_smsc911x_resources, |
| 154 | .dev = { |
| 155 | .platform_data = &ard_smsc911x_config, |
| 156 | }, |
| 157 | }; |
| 158 | |
Andre Silva | e3a58be | 2011-06-13 14:31:57 -0300 | [diff] [blame] | 159 | static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = { |
| 160 | .cd_gpio = ARD_SD1_CD, |
| 161 | .wp_gpio = ARD_SD1_WP, |
| 162 | }; |
| 163 | |
Andre Silva | 8dd7b81 | 2011-06-22 16:33:05 -0300 | [diff] [blame] | 164 | static struct imxi2c_platform_data mx53_ard_i2c2_data = { |
| 165 | .bitrate = 50000, |
| 166 | }; |
| 167 | |
| 168 | static struct imxi2c_platform_data mx53_ard_i2c3_data = { |
| 169 | .bitrate = 400000, |
| 170 | }; |
| 171 | |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 172 | static void __init mx53_ard_io_init(void) |
| 173 | { |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 174 | gpio_request(ARD_ETHERNET_INT_B, "eth-int-b"); |
| 175 | gpio_direction_input(ARD_ETHERNET_INT_B); |
Andre Silva | 8dd7b81 | 2011-06-22 16:33:05 -0300 | [diff] [blame] | 176 | |
| 177 | gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst"); |
| 178 | gpio_direction_output(ARD_I2CPORTEXP_B, 1); |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 179 | } |
| 180 | |
Andre Silva | 8dd7b81 | 2011-06-22 16:33:05 -0300 | [diff] [blame] | 181 | /* Config CS1 settings for ethernet controller */ |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 182 | static int weim_cs_config(void) |
| 183 | { |
| 184 | u32 reg; |
| 185 | void __iomem *weim_base, *iomuxc_base; |
| 186 | |
| 187 | weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K); |
| 188 | if (!weim_base) |
| 189 | return -ENOMEM; |
| 190 | |
| 191 | iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K); |
Julia Lawall | 945f82f | 2012-01-12 10:55:12 +0100 | [diff] [blame^] | 192 | if (!iomuxc_base) { |
| 193 | iounmap(weim_base); |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 194 | return -ENOMEM; |
Julia Lawall | 945f82f | 2012-01-12 10:55:12 +0100 | [diff] [blame^] | 195 | } |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 196 | |
| 197 | /* CS1 timings for LAN9220 */ |
| 198 | writel(0x20001, (weim_base + 0x18)); |
| 199 | writel(0x0, (weim_base + 0x1C)); |
| 200 | writel(0x16000202, (weim_base + 0x20)); |
| 201 | writel(0x00000002, (weim_base + 0x24)); |
| 202 | writel(0x16002082, (weim_base + 0x28)); |
| 203 | writel(0x00000000, (weim_base + 0x2C)); |
| 204 | writel(0x00000000, (weim_base + 0x90)); |
| 205 | |
| 206 | /* specify 64 MB on CS1 and CS0 on GPR1 */ |
| 207 | reg = readl(iomuxc_base + 0x4); |
| 208 | reg &= ~0x3F; |
| 209 | reg |= 0x1B; |
| 210 | writel(reg, (iomuxc_base + 0x4)); |
| 211 | |
| 212 | iounmap(iomuxc_base); |
| 213 | iounmap(weim_base); |
| 214 | |
| 215 | return 0; |
| 216 | } |
| 217 | |
Shawn Guo | 73d2b4c | 2011-10-17 08:42:16 +0800 | [diff] [blame] | 218 | void __init imx53_ard_common_init(void) |
| 219 | { |
| 220 | mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, |
| 221 | ARRAY_SIZE(mx53_ard_pads)); |
| 222 | weim_cs_config(); |
| 223 | } |
| 224 | |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 225 | static struct platform_device *devices[] __initdata = { |
| 226 | &ard_smsc_lan9220_device, |
| 227 | }; |
| 228 | |
| 229 | static void __init mx53_ard_board_init(void) |
| 230 | { |
| 231 | imx53_soc_init(); |
| 232 | imx53_add_imx_uart(0, NULL); |
| 233 | |
Shawn Guo | 73d2b4c | 2011-10-17 08:42:16 +0800 | [diff] [blame] | 234 | imx53_ard_common_init(); |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 235 | mx53_ard_io_init(); |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 236 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
Andre Silva | e3a58be | 2011-06-13 14:31:57 -0300 | [diff] [blame] | 237 | |
| 238 | imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data); |
Andre Silva | 40d32c8 | 2011-06-13 14:31:58 -0300 | [diff] [blame] | 239 | imx53_add_imx2_wdt(0, NULL); |
Andre Silva | 8dd7b81 | 2011-06-22 16:33:05 -0300 | [diff] [blame] | 240 | imx53_add_imx_i2c(1, &mx53_ard_i2c2_data); |
| 241 | imx53_add_imx_i2c(2, &mx53_ard_i2c3_data); |
Daiane Angolini | 2a90a69 | 2011-06-30 14:41:46 -0300 | [diff] [blame] | 242 | imx_add_gpio_keys(&ard_button_data); |
Richard Zhu | e97e303 | 2011-09-28 15:41:55 +0800 | [diff] [blame] | 243 | imx53_add_ahci_imx(); |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | static void __init mx53_ard_timer_init(void) |
| 247 | { |
| 248 | mx53_clocks_init(32768, 24000000, 22579200, 0); |
| 249 | } |
| 250 | |
| 251 | static struct sys_timer mx53_ard_timer = { |
| 252 | .init = mx53_ard_timer_init, |
| 253 | }; |
| 254 | |
| 255 | MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board") |
| 256 | .map_io = mx53_map_io, |
| 257 | .init_early = imx53_init_early, |
| 258 | .init_irq = mx53_init_irq, |
Sascha Hauer | ffa2ea3 | 2011-09-20 14:31:24 +0200 | [diff] [blame] | 259 | .handle_irq = imx53_handle_irq, |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 260 | .timer = &mx53_ard_timer, |
| 261 | .init_machine = mx53_ard_board_init, |
Russell King | 65ea788 | 2011-11-06 17:12:08 +0000 | [diff] [blame] | 262 | .restart = mxc_restart, |
Andre Silva | bd89782 | 2011-06-10 13:08:14 -0300 | [diff] [blame] | 263 | MACHINE_END |