Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * at91_cf.c -- AT91 CompactFlash controller driver |
| 3 | * |
| 4 | * Copyright (C) 2005 David Brownell |
| 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 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/errno.h> |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/interrupt.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 18 | #include <linux/slab.h> |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 19 | #include <linux/gpio.h> |
Jean-Christophe PLAGNIOL-VILLARD | bcd2360 | 2012-10-30 05:12:23 +0800 | [diff] [blame] | 20 | #include <linux/platform_data/atmel.h> |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 21 | |
| 22 | #include <pcmcia/ss.h> |
| 23 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 24 | #include <mach/hardware.h> |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 25 | #include <asm/io.h> |
| 26 | #include <asm/sizes.h> |
| 27 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 28 | #include <mach/at91rm9200_mc.h> |
Jean-Christophe PLAGNIOL-VILLARD | f363c40 | 2012-02-13 12:58:53 +0800 | [diff] [blame] | 29 | #include <mach/at91_ramc.h> |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 30 | |
| 31 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 32 | /* |
| 33 | * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW; |
| 34 | * some other bit in {A24,A22..A11} is nREG to flag memory access |
| 35 | * (vs attributes). So more than 2KB/region would just be waste. |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 36 | * Note: These are offsets from the physical base address. |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 37 | */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 38 | #define CF_ATTR_PHYS (0) |
| 39 | #define CF_IO_PHYS (1 << 23) |
| 40 | #define CF_MEM_PHYS (0x017ff800) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 41 | |
| 42 | /*--------------------------------------------------------------------------*/ |
| 43 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 44 | struct at91_cf_socket { |
| 45 | struct pcmcia_socket socket; |
| 46 | |
| 47 | unsigned present:1; |
| 48 | |
| 49 | struct platform_device *pdev; |
| 50 | struct at91_cf_data *board; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 51 | |
| 52 | unsigned long phys_baseaddr; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 53 | }; |
| 54 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 55 | static inline int at91_cf_present(struct at91_cf_socket *cf) |
| 56 | { |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 57 | return !gpio_get_value(cf->board->det_pin); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | /*--------------------------------------------------------------------------*/ |
| 61 | |
| 62 | static int at91_cf_ss_init(struct pcmcia_socket *s) |
| 63 | { |
| 64 | return 0; |
| 65 | } |
| 66 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 67 | static irqreturn_t at91_cf_irq(int irq, void *_cf) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 68 | { |
Jeff Garzik | c7bec5a | 2006-10-06 15:00:58 -0400 | [diff] [blame] | 69 | struct at91_cf_socket *cf = _cf; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 70 | |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 71 | if (irq == gpio_to_irq(cf->board->det_pin)) { |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 72 | unsigned present = at91_cf_present(cf); |
| 73 | |
| 74 | /* kick pccard as needed */ |
| 75 | if (present != cf->present) { |
| 76 | cf->present = present; |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 77 | dev_dbg(&cf->pdev->dev, "card %s\n", |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 78 | present ? "present" : "gone"); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 79 | pcmcia_parse_events(&cf->socket, SS_DETECT); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | return IRQ_HANDLED; |
| 84 | } |
| 85 | |
| 86 | static int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp) |
| 87 | { |
| 88 | struct at91_cf_socket *cf; |
| 89 | |
| 90 | if (!sp) |
| 91 | return -EINVAL; |
| 92 | |
| 93 | cf = container_of(s, struct at91_cf_socket, socket); |
| 94 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 95 | /* NOTE: CF is always 3VCARD */ |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 96 | if (at91_cf_present(cf)) { |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 97 | int rdy = gpio_is_valid(cf->board->irq_pin); /* RDY/nIRQ */ |
| 98 | int vcc = gpio_is_valid(cf->board->vcc_pin); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 99 | |
| 100 | *sp = SS_DETECT | SS_3VCARD; |
Joachim Eastwood | e39506b | 2013-06-06 10:24:14 +0200 | [diff] [blame] | 101 | if (!rdy || gpio_get_value(cf->board->irq_pin)) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 102 | *sp |= SS_READY; |
Joachim Eastwood | e39506b | 2013-06-06 10:24:14 +0200 | [diff] [blame] | 103 | if (!vcc || gpio_get_value(cf->board->vcc_pin)) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 104 | *sp |= SS_POWERON; |
| 105 | } else |
| 106 | *sp = 0; |
| 107 | |
| 108 | return 0; |
| 109 | } |
| 110 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 111 | static int |
| 112 | at91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 113 | { |
| 114 | struct at91_cf_socket *cf; |
| 115 | |
| 116 | cf = container_of(sock, struct at91_cf_socket, socket); |
| 117 | |
| 118 | /* switch Vcc if needed and possible */ |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 119 | if (gpio_is_valid(cf->board->vcc_pin)) { |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 120 | switch (s->Vcc) { |
| 121 | case 0: |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 122 | gpio_set_value(cf->board->vcc_pin, 0); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 123 | break; |
| 124 | case 33: |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 125 | gpio_set_value(cf->board->vcc_pin, 1); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 126 | break; |
| 127 | default: |
| 128 | return -EINVAL; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | /* toggle reset if needed */ |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 133 | gpio_set_value(cf->board->rst_pin, s->flags & SS_RESET); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 134 | |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 135 | dev_dbg(&cf->pdev->dev, "Vcc %d, io_irq %d, flags %04x csc %04x\n", |
| 136 | s->Vcc, s->io_irq, s->flags, s->csc_mask); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 137 | |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | static int at91_cf_ss_suspend(struct pcmcia_socket *s) |
| 142 | { |
| 143 | return at91_cf_set_socket(s, &dead_socket); |
| 144 | } |
| 145 | |
| 146 | /* we already mapped the I/O region */ |
| 147 | static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) |
| 148 | { |
| 149 | struct at91_cf_socket *cf; |
| 150 | u32 csr; |
| 151 | |
| 152 | cf = container_of(s, struct at91_cf_socket, socket); |
| 153 | io->flags &= (MAP_ACTIVE | MAP_16BIT | MAP_AUTOSZ); |
| 154 | |
| 155 | /* |
| 156 | * Use 16 bit accesses unless/until we need 8-bit i/o space. |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 157 | */ |
Jean-Christophe PLAGNIOL-VILLARD | f363c40 | 2012-02-13 12:58:53 +0800 | [diff] [blame] | 158 | csr = at91_ramc_read(0, AT91_SMC_CSR(cf->board->chipselect)) & ~AT91_SMC_DBW; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 159 | |
| 160 | /* |
| 161 | * NOTE: this CF controller ignores IOIS16, so we can't really do |
| 162 | * MAP_AUTOSZ. The 16bit mode allows single byte access on either |
| 163 | * D0-D7 (even addr) or D8-D15 (odd), so it's close enough for many |
| 164 | * purposes (and handles ide-cs). |
| 165 | * |
| 166 | * The 8bit mode is needed for odd byte access on D0-D7. It seems |
| 167 | * some cards only like that way to get at the odd byte, despite |
| 168 | * CF 3.0 spec table 35 also giving the D8-D15 option. |
| 169 | */ |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 170 | if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) { |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 171 | csr |= AT91_SMC_DBW_8; |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 172 | dev_dbg(&cf->pdev->dev, "8bit i/o bus\n"); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 173 | } else { |
| 174 | csr |= AT91_SMC_DBW_16; |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 175 | dev_dbg(&cf->pdev->dev, "16bit i/o bus\n"); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 176 | } |
Jean-Christophe PLAGNIOL-VILLARD | f363c40 | 2012-02-13 12:58:53 +0800 | [diff] [blame] | 177 | at91_ramc_write(0, AT91_SMC_CSR(cf->board->chipselect), csr); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 178 | |
| 179 | io->start = cf->socket.io_offset; |
| 180 | io->stop = io->start + SZ_2K - 1; |
| 181 | |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | /* pcmcia layer maps/unmaps mem regions */ |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 186 | static int |
| 187 | at91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 188 | { |
| 189 | struct at91_cf_socket *cf; |
| 190 | |
| 191 | if (map->card_start) |
| 192 | return -EINVAL; |
| 193 | |
| 194 | cf = container_of(s, struct at91_cf_socket, socket); |
| 195 | |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 196 | map->flags &= (MAP_ACTIVE | MAP_ATTRIB | MAP_16BIT); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 197 | if (map->flags & MAP_ATTRIB) |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 198 | map->static_start = cf->phys_baseaddr + CF_ATTR_PHYS; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 199 | else |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 200 | map->static_start = cf->phys_baseaddr + CF_MEM_PHYS; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 201 | |
| 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | static struct pccard_operations at91_cf_ops = { |
| 206 | .init = at91_cf_ss_init, |
| 207 | .suspend = at91_cf_ss_suspend, |
| 208 | .get_status = at91_cf_get_status, |
| 209 | .set_socket = at91_cf_set_socket, |
| 210 | .set_io_map = at91_cf_set_io_map, |
| 211 | .set_mem_map = at91_cf_set_mem_map, |
| 212 | }; |
| 213 | |
| 214 | /*--------------------------------------------------------------------------*/ |
| 215 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 216 | static int __init at91_cf_probe(struct platform_device *pdev) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 217 | { |
| 218 | struct at91_cf_socket *cf; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 219 | struct at91_cf_data *board = pdev->dev.platform_data; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 220 | struct resource *io; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 221 | int status; |
| 222 | |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 223 | if (!board || !gpio_is_valid(board->det_pin) || !gpio_is_valid(board->rst_pin)) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 224 | return -ENODEV; |
| 225 | |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 226 | io = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 227 | if (!io) |
| 228 | return -ENODEV; |
| 229 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 230 | cf = kzalloc(sizeof *cf, GFP_KERNEL); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 231 | if (!cf) |
| 232 | return -ENOMEM; |
| 233 | |
| 234 | cf->board = board; |
| 235 | cf->pdev = pdev; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 236 | cf->phys_baseaddr = io->start; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 237 | platform_set_drvdata(pdev, cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 238 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 239 | /* must be a GPIO; ergo must trigger on both edges */ |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 240 | status = gpio_request(board->det_pin, "cf_det"); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 241 | if (status < 0) |
| 242 | goto fail0; |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 243 | status = request_irq(gpio_to_irq(board->det_pin), at91_cf_irq, 0, "at91_cf detect", cf); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 244 | if (status < 0) |
| 245 | goto fail00; |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 246 | device_init_wakeup(&pdev->dev, 1); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 247 | |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 248 | status = gpio_request(board->rst_pin, "cf_rst"); |
| 249 | if (status < 0) |
| 250 | goto fail0a; |
| 251 | |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 252 | if (gpio_is_valid(board->vcc_pin)) { |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 253 | status = gpio_request(board->vcc_pin, "cf_vcc"); |
| 254 | if (status < 0) |
| 255 | goto fail0b; |
| 256 | } |
| 257 | |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 258 | /* |
| 259 | * The card driver will request this irq later as needed. |
| 260 | * but it causes lots of "irqNN: nobody cared" messages |
| 261 | * unless we report that we handle everything (sigh). |
| 262 | * (Note: DK board doesn't wire the IRQ pin...) |
| 263 | */ |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 264 | if (gpio_is_valid(board->irq_pin)) { |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 265 | status = gpio_request(board->irq_pin, "cf_irq"); |
| 266 | if (status < 0) |
| 267 | goto fail0c; |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 268 | status = request_irq(gpio_to_irq(board->irq_pin), at91_cf_irq, |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 269 | IRQF_SHARED, "at91_cf", cf); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 270 | if (status < 0) |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 271 | goto fail0d; |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 272 | cf->socket.pci_irq = gpio_to_irq(board->irq_pin); |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 273 | } else |
Yinghai Lu | 9130add | 2008-08-19 20:49:52 -0700 | [diff] [blame] | 274 | cf->socket.pci_irq = nr_irqs + 1; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 275 | |
| 276 | /* pcmcia layer only remaps "real" memory not iospace */ |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 277 | cf->socket.io_offset = (unsigned long) |
| 278 | ioremap(cf->phys_baseaddr + CF_IO_PHYS, SZ_2K); |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 279 | if (!cf->socket.io_offset) { |
| 280 | status = -ENXIO; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 281 | goto fail1; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 282 | } |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 283 | |
Andrew Victor | 40a0017 | 2006-12-04 12:26:36 +0200 | [diff] [blame] | 284 | /* reserve chip-select regions */ |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 285 | if (!request_mem_region(io->start, resource_size(io), "at91_cf")) { |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 286 | status = -ENXIO; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 287 | goto fail1; |
Andrew Victor | ebe5cfb | 2006-11-06 15:56:07 +0200 | [diff] [blame] | 288 | } |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 289 | |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 290 | dev_info(&pdev->dev, "irqs det #%d, io #%d\n", |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 291 | gpio_to_irq(board->det_pin), gpio_to_irq(board->irq_pin)); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 292 | |
| 293 | cf->socket.owner = THIS_MODULE; |
Alexey Dobriyan | e4a3c3f | 2007-02-13 22:39:27 -0800 | [diff] [blame] | 294 | cf->socket.dev.parent = &pdev->dev; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 295 | cf->socket.ops = &at91_cf_ops; |
| 296 | cf->socket.resource_ops = &pccard_static_ops; |
| 297 | cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP |
| 298 | | SS_CAP_MEM_ALIGN; |
| 299 | cf->socket.map_size = SZ_2K; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 300 | cf->socket.io[0].res = io; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 301 | |
| 302 | status = pcmcia_register_socket(&cf->socket); |
| 303 | if (status < 0) |
| 304 | goto fail2; |
| 305 | |
| 306 | return 0; |
| 307 | |
| 308 | fail2: |
Joe Perches | 28f65c11 | 2011-06-09 09:13:32 -0700 | [diff] [blame] | 309 | release_mem_region(io->start, resource_size(io)); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 310 | fail1: |
Amol Lad | 3efa997 | 2006-10-20 14:44:18 -0700 | [diff] [blame] | 311 | if (cf->socket.io_offset) |
| 312 | iounmap((void __iomem *) cf->socket.io_offset); |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 313 | if (gpio_is_valid(board->irq_pin)) { |
| 314 | free_irq(gpio_to_irq(board->irq_pin), cf); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 315 | fail0d: |
| 316 | gpio_free(board->irq_pin); |
| 317 | } |
| 318 | fail0c: |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 319 | if (gpio_is_valid(board->vcc_pin)) |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 320 | gpio_free(board->vcc_pin); |
| 321 | fail0b: |
| 322 | gpio_free(board->rst_pin); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 323 | fail0a: |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 324 | device_init_wakeup(&pdev->dev, 0); |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 325 | free_irq(gpio_to_irq(board->det_pin), cf); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 326 | fail00: |
| 327 | gpio_free(board->det_pin); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 328 | fail0: |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 329 | kfree(cf); |
| 330 | return status; |
| 331 | } |
| 332 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 333 | static int __exit at91_cf_remove(struct platform_device *pdev) |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 334 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 335 | struct at91_cf_socket *cf = platform_get_drvdata(pdev); |
| 336 | struct at91_cf_data *board = cf->board; |
David Brownell | 2c53620 | 2006-04-14 18:05:38 -0700 | [diff] [blame] | 337 | struct resource *io = cf->socket.io[0].res; |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 338 | |
| 339 | pcmcia_unregister_socket(&cf->socket); |
Joe Perches | 28f65c11 | 2011-06-09 09:13:32 -0700 | [diff] [blame] | 340 | release_mem_region(io->start, resource_size(io)); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 341 | iounmap((void __iomem *) cf->socket.io_offset); |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 342 | if (gpio_is_valid(board->irq_pin)) { |
| 343 | free_irq(gpio_to_irq(board->irq_pin), cf); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 344 | gpio_free(board->irq_pin); |
| 345 | } |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 346 | if (gpio_is_valid(board->vcc_pin)) |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 347 | gpio_free(board->vcc_pin); |
| 348 | gpio_free(board->rst_pin); |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 349 | device_init_wakeup(&pdev->dev, 0); |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 350 | free_irq(gpio_to_irq(board->det_pin), cf); |
David Brownell | 4c1fc44 | 2008-02-04 22:27:42 -0800 | [diff] [blame] | 351 | gpio_free(board->det_pin); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 352 | kfree(cf); |
| 353 | return 0; |
| 354 | } |
| 355 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 356 | #ifdef CONFIG_PM |
| 357 | |
| 358 | static int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg) |
| 359 | { |
| 360 | struct at91_cf_socket *cf = platform_get_drvdata(pdev); |
| 361 | struct at91_cf_data *board = cf->board; |
| 362 | |
David Brownell | 1fbece1 | 2006-07-01 13:39:55 -0700 | [diff] [blame] | 363 | if (device_may_wakeup(&pdev->dev)) { |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 364 | enable_irq_wake(gpio_to_irq(board->det_pin)); |
| 365 | if (gpio_is_valid(board->irq_pin)) |
| 366 | enable_irq_wake(gpio_to_irq(board->irq_pin)); |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 367 | } |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | static int at91_cf_resume(struct platform_device *pdev) |
| 372 | { |
Marc Pignat | 9af2037 | 2007-05-31 00:40:44 -0700 | [diff] [blame] | 373 | struct at91_cf_socket *cf = platform_get_drvdata(pdev); |
| 374 | struct at91_cf_data *board = cf->board; |
| 375 | |
| 376 | if (device_may_wakeup(&pdev->dev)) { |
Joachim Eastwood | 80af9e6 | 2012-01-10 02:37:25 +0100 | [diff] [blame] | 377 | disable_irq_wake(gpio_to_irq(board->det_pin)); |
| 378 | if (gpio_is_valid(board->irq_pin)) |
| 379 | disable_irq_wake(gpio_to_irq(board->irq_pin)); |
Marc Pignat | 9af2037 | 2007-05-31 00:40:44 -0700 | [diff] [blame] | 380 | } |
| 381 | |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | #else |
| 386 | #define at91_cf_suspend NULL |
| 387 | #define at91_cf_resume NULL |
| 388 | #endif |
| 389 | |
| 390 | static struct platform_driver at91_cf_driver = { |
| 391 | .driver = { |
Joachim Eastwood | 40ca020 | 2013-06-06 10:24:15 +0200 | [diff] [blame^] | 392 | .name = "at91_cf", |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 393 | .owner = THIS_MODULE, |
| 394 | }, |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 395 | .remove = __exit_p(at91_cf_remove), |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 396 | .suspend = at91_cf_suspend, |
| 397 | .resume = at91_cf_resume, |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 398 | }; |
| 399 | |
| 400 | /*--------------------------------------------------------------------------*/ |
| 401 | |
| 402 | static int __init at91_cf_init(void) |
| 403 | { |
David Brownell | 02c8359 | 2007-05-06 14:48:42 -0700 | [diff] [blame] | 404 | return platform_driver_probe(&at91_cf_driver, at91_cf_probe); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 405 | } |
| 406 | module_init(at91_cf_init); |
| 407 | |
| 408 | static void __exit at91_cf_exit(void) |
| 409 | { |
David Brownell | 0db6095 | 2006-04-19 06:37:48 -0700 | [diff] [blame] | 410 | platform_driver_unregister(&at91_cf_driver); |
Andrew Victor | 2c1f3b7 | 2006-02-21 12:56:52 +0200 | [diff] [blame] | 411 | } |
| 412 | module_exit(at91_cf_exit); |
| 413 | |
| 414 | MODULE_DESCRIPTION("AT91 Compact Flash Driver"); |
| 415 | MODULE_AUTHOR("David Brownell"); |
| 416 | MODULE_LICENSE("GPL"); |
Kay Sievers | 12c2c01 | 2008-04-15 14:34:34 -0700 | [diff] [blame] | 417 | MODULE_ALIAS("platform:at91_cf"); |