projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 577145f4 VP |
1 | /* |
| 2 | * Copyright (C) 2009 Texas Instruments Inc. | |
| 3 | * Mikkel Christensen <mlc@ti.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | */ | |
| 9 | ||
| 10 | #include <linux/kernel.h> | |
| 11 | #include <linux/init.h> | |
| 12 | #include <linux/gpio.h> | |
| 13 | #include <linux/serial_8250.h> | |
| 14 | #include <linux/smsc911x.h> | |
| 15 | ||
| 16 | #include <mach/gpmc.h> | |
| 17 | ||
| 18 | #define ZOOM2_SMSC911X_CS 7 | |
| 19 | #define ZOOM2_SMSC911X_GPIO 158 | |
| 20 | #define ZOOM2_QUADUART_CS 3 | |
| 21 | #define ZOOM2_QUADUART_GPIO 102 | |
| 22 | #define QUART_CLK 1843200 | |
| 23 | #define DEBUG_BASE 0x08000000 | |
| 24 | #define ZOOM2_ETHR_START DEBUG_BASE | |
| 25 | ||
| 26 | static struct resource zoom2_smsc911x_resources[] = { | |
| 27 | [0] = { | |
| 28 | .start = ZOOM2_ETHR_START, | |
| 29 | .end = ZOOM2_ETHR_START + SZ_4K, | |
| 30 | .flags = IORESOURCE_MEM, | |
| 31 | }, | |
| 32 | [1] = { | |
| 33 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, | |
| 34 | }, | |
| 35 | }; | |
| 36 | ||
| 37 | static struct smsc911x_platform_config zoom2_smsc911x_config = { | |
| 38 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
| 39 | .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, | |
| 40 | .flags = SMSC911X_USE_32BIT, | |
| 41 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
| 42 | }; | |
| 43 | ||
| 44 | static struct platform_device zoom2_smsc911x_device = { | |
| 45 | .name = "smsc911x", | |
| 46 | .id = -1, | |
| 47 | .num_resources = ARRAY_SIZE(zoom2_smsc911x_resources), | |
| 48 | .resource = zoom2_smsc911x_resources, | |
| 49 | .dev = { | |
| 50 | .platform_data = &zoom2_smsc911x_config, | |
| 51 | }, | |
| 52 | }; | |
| 53 | ||
| 54 | static inline void __init zoom2_init_smsc911x(void) | |
| 55 | { | |
| 56 | int eth_cs; | |
| 57 | unsigned long cs_mem_base; | |
| 58 | int eth_gpio = 0; | |
| 59 | ||
| 60 | eth_cs = ZOOM2_SMSC911X_CS; | |
| 61 | ||
| 62 | if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { | |
| 63 | printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n"); | |
| 64 | return; | |
| 65 | } | |
| 66 | ||
| 67 | zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0; | |
| 68 | zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff; | |
| 69 | ||
| 70 | eth_gpio = ZOOM2_SMSC911X_GPIO; | |
| 71 | ||
| 72 | zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio); | |
| 73 | ||
| 74 | if (gpio_request(eth_gpio, "smsc911x irq") < 0) { | |
| 75 | printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n", | |
| 76 | eth_gpio); | |
| 77 | return; | |
| 78 | } | |
| 79 | gpio_direction_input(eth_gpio); | |
| 80 | } | |
| 81 | ||
| 82 | static struct plat_serial8250_port serial_platform_data[] = { | |
| 83 | { | |
| 84 | .mapbase = 0x10000000, | |
| 85 | .irq = OMAP_GPIO_IRQ(102), | |
| 86 | .flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ, | |
| 87 | .iotype = UPIO_MEM, | |
| 88 | .regshift = 1, | |
| 89 | .uartclk = QUART_CLK, | |
| 90 | }, { | |
| 91 | .flags = 0 | |
| 92 | } | |
| 93 | }; | |
| 94 | ||
| 95 | static struct platform_device zoom2_debugboard_serial_device = { | |
| 96 | .name = "serial8250", | |
| 97 | .id = PLAT8250_DEV_PLATFORM1, | |
| 98 | .dev = { | |
| 99 | .platform_data = serial_platform_data, | |
| 100 | }, | |
| 101 | }; | |
| 102 | ||
| 103 | static inline void __init zoom2_init_quaduart(void) | |
| 104 | { | |
| 105 | int quart_cs; | |
| 106 | unsigned long cs_mem_base; | |
| 107 | int quart_gpio = 0; | |
| 108 | ||
| 109 | quart_cs = ZOOM2_QUADUART_CS; | |
| 110 | ||
| 111 | if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) { | |
| 112 | printk(KERN_ERR "Failed to request GPMC mem" | |
| 113 | "for Quad UART(TL16CP754C)\n"); | |
| 114 | return; | |
| 115 | } | |
| 116 | ||
| 117 | quart_gpio = ZOOM2_QUADUART_GPIO; | |
| 118 | ||
| 119 | if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) { | |
| 120 | printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n", | |
| 121 | quart_gpio); | |
| 122 | return; | |
| 123 | } | |
| 124 | gpio_direction_input(quart_gpio); | |
| 125 | } | |
| 126 | ||
| 127 | static inline int omap_zoom2_debugboard_detect(void) | |
| 128 | { | |
| 129 | int debug_board_detect = 0; | |
| 130 | ||
| 131 | debug_board_detect = ZOOM2_SMSC911X_GPIO; | |
| 132 | ||
| 133 | if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) { | |
| 134 | printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug" | |
| 135 | "board detect\n", debug_board_detect); | |
| 136 | return 0; | |
| 137 | } | |
| 138 | gpio_direction_input(debug_board_detect); | |
| 139 | ||
| 140 | if (!gpio_get_value(debug_board_detect)) { | |
| 141 | gpio_free(debug_board_detect); | |
| 142 | return 0; | |
| 143 | } | |
| 144 | return 1; | |
| 145 | } | |
| 146 | ||
| 147 | static struct platform_device *zoom2_devices[] __initdata = { | |
| 148 | &zoom2_smsc911x_device, | |
| 149 | &zoom2_debugboard_serial_device, | |
| 150 | }; | |
| 151 | ||
| 152 | int __init omap_zoom2_debugboard_init(void) | |
| 153 | { | |
| 154 | if (!omap_zoom2_debugboard_detect()) | |
| 155 | return 0; | |
| 156 | ||
| 157 | zoom2_init_smsc911x(); | |
| 158 | zoom2_init_quaduart(); | |
| 159 | return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices)); | |
| 160 | } |