12c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/* 22c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * at91_cf.c -- AT91 CompactFlash controller driver 32c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * 42c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * Copyright (C) 2005 David Brownell 52c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * 62c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * This program is free software; you can redistribute it and/or modify 72c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * it under the terms of the GNU General Public License as published by 82c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * the Free Software Foundation; either version 2 of the License, or 92c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * (at your option) any later version. 102c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor */ 112c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 122c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/module.h> 132c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/kernel.h> 142c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/platform_device.h> 152c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/errno.h> 162c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/init.h> 172c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <linux/interrupt.h> 185a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 1980af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood#include <linux/gpio.h> 202c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 212c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <pcmcia/ss.h> 222c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 23a09e64fbc0094e3073dbb09c3b4bfe4ab669244bRussell King#include <mach/hardware.h> 242c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <asm/io.h> 252c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor#include <asm/sizes.h> 262c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 27a09e64fbc0094e3073dbb09c3b4bfe4ab669244bRussell King#include <mach/board.h> 28a09e64fbc0094e3073dbb09c3b4bfe4ab669244bRussell King#include <mach/at91rm9200_mc.h> 29f363c407b42c467d06675c852e55f26adb959915Jean-Christophe PLAGNIOL-VILLARD#include <mach/at91_ramc.h> 302c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 312c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 322c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/* 332c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW; 342c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * some other bit in {A24,A22..A11} is nREG to flag memory access 352c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * (vs attributes). So more than 2KB/region would just be waste. 36ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor * Note: These are offsets from the physical base address. 372c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor */ 38ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor#define CF_ATTR_PHYS (0) 39ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor#define CF_IO_PHYS (1 << 23) 40ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor#define CF_MEM_PHYS (0x017ff800) 412c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 422c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/*--------------------------------------------------------------------------*/ 432c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 442c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic const char driver_name[] = "at91_cf"; 452c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 462c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstruct at91_cf_socket { 472c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct pcmcia_socket socket; 482c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 492c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor unsigned present:1; 502c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 512c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct platform_device *pdev; 522c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_data *board; 53ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor 54ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor unsigned long phys_baseaddr; 552c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor}; 562c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 572c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic inline int at91_cf_present(struct at91_cf_socket *cf) 582c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 594c1fc445c29c6208c44e10c0253beea890bf5435David Brownell return !gpio_get_value(cf->board->det_pin); 602c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 612c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 622c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/*--------------------------------------------------------------------------*/ 632c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 642c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic int at91_cf_ss_init(struct pcmcia_socket *s) 652c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 662c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 672c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 682c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 697d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic irqreturn_t at91_cf_irq(int irq, void *_cf) 702c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 71c7bec5aba52392aa8d675b8722735caf4a8b7265Jeff Garzik struct at91_cf_socket *cf = _cf; 722c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 7380af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (irq == gpio_to_irq(cf->board->det_pin)) { 742c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor unsigned present = at91_cf_present(cf); 752c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 762c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* kick pccard as needed */ 772c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (present != cf->present) { 782c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->present = present; 792c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell pr_debug("%s: card %s\n", driver_name, 802c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell present ? "present" : "gone"); 812c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pcmcia_parse_events(&cf->socket, SS_DETECT); 822c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } 832c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } 842c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 852c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return IRQ_HANDLED; 862c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 872c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 882c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic int at91_cf_get_status(struct pcmcia_socket *s, u_int *sp) 892c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 902c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_socket *cf; 912c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 922c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (!sp) 932c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return -EINVAL; 942c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 952c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf = container_of(s, struct at91_cf_socket, socket); 962c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 972c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell /* NOTE: CF is always 3VCARD */ 982c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (at91_cf_present(cf)) { 9980af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood int rdy = gpio_is_valid(cf->board->irq_pin); /* RDY/nIRQ */ 10080af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood int vcc = gpio_is_valid(cf->board->vcc_pin); 1012c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1022c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor *sp = SS_DETECT | SS_3VCARD; 1034c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (!rdy || gpio_get_value(rdy)) 1042c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor *sp |= SS_READY; 1054c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (!vcc || gpio_get_value(vcc)) 1062c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor *sp |= SS_POWERON; 1072c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } else 1082c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor *sp = 0; 1092c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1102c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 1112c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 1122c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1132c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownellstatic int 1142c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownellat91_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s) 1152c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 1162c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_socket *cf; 1172c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1182c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf = container_of(sock, struct at91_cf_socket, socket); 1192c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1202c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* switch Vcc if needed and possible */ 12180af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(cf->board->vcc_pin)) { 1222c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor switch (s->Vcc) { 1232c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor case 0: 1244c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_set_value(cf->board->vcc_pin, 0); 1252c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor break; 1262c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor case 33: 1274c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_set_value(cf->board->vcc_pin, 1); 1282c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor break; 1292c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor default: 1302c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return -EINVAL; 1312c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } 1322c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } 1332c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1342c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* toggle reset if needed */ 1354c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_set_value(cf->board->rst_pin, s->flags & SS_RESET); 1362c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1372c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n", 1382c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask); 1392c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1402c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 1412c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 1422c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1432c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic int at91_cf_ss_suspend(struct pcmcia_socket *s) 1442c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 1452c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return at91_cf_set_socket(s, &dead_socket); 1462c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 1472c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1482c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/* we already mapped the I/O region */ 1492c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) 1502c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 1512c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_socket *cf; 1522c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor u32 csr; 1532c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1542c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf = container_of(s, struct at91_cf_socket, socket); 1552c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor io->flags &= (MAP_ACTIVE | MAP_16BIT | MAP_AUTOSZ); 1562c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1572c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* 1582c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * Use 16 bit accesses unless/until we need 8-bit i/o space. 1592c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor */ 160f363c407b42c467d06675c852e55f26adb959915Jean-Christophe PLAGNIOL-VILLARD csr = at91_ramc_read(0, AT91_SMC_CSR(cf->board->chipselect)) & ~AT91_SMC_DBW; 1612c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1622c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* 1632c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * NOTE: this CF controller ignores IOIS16, so we can't really do 1642c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * MAP_AUTOSZ. The 16bit mode allows single byte access on either 1652c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * D0-D7 (even addr) or D8-D15 (odd), so it's close enough for many 1662c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * purposes (and handles ide-cs). 1672c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * 1682c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * The 8bit mode is needed for odd byte access on D0-D7. It seems 1692c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * some cards only like that way to get at the odd byte, despite 1702c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * CF 3.0 spec table 35 also giving the D8-D15 option. 1712c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor */ 172ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) { 1732c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor csr |= AT91_SMC_DBW_8; 1742c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pr_debug("%s: 8bit i/o bus\n", driver_name); 1752c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } else { 1762c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor csr |= AT91_SMC_DBW_16; 1772c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pr_debug("%s: 16bit i/o bus\n", driver_name); 1782c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor } 179f363c407b42c467d06675c852e55f26adb959915Jean-Christophe PLAGNIOL-VILLARD at91_ramc_write(0, AT91_SMC_CSR(cf->board->chipselect), csr); 1802c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1812c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor io->start = cf->socket.io_offset; 1822c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor io->stop = io->start + SZ_2K - 1; 1832c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1842c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 1852c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 1862c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1872c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/* pcmcia layer maps/unmaps mem regions */ 1882c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownellstatic int 1892c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownellat91_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map) 1902c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 1912c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_socket *cf; 1922c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1932c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (map->card_start) 1942c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return -EINVAL; 1952c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 1962c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf = container_of(s, struct at91_cf_socket, socket); 1972c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 198ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor map->flags &= (MAP_ACTIVE | MAP_ATTRIB | MAP_16BIT); 1992c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (map->flags & MAP_ATTRIB) 200ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor map->static_start = cf->phys_baseaddr + CF_ATTR_PHYS; 2012c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor else 202ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor map->static_start = cf->phys_baseaddr + CF_MEM_PHYS; 2032c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2042c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 2052c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 2062c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2072c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic struct pccard_operations at91_cf_ops = { 2082c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .init = at91_cf_ss_init, 2092c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .suspend = at91_cf_ss_suspend, 2102c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .get_status = at91_cf_get_status, 2112c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .set_socket = at91_cf_set_socket, 2122c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .set_io_map = at91_cf_set_io_map, 2132c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .set_mem_map = at91_cf_set_mem_map, 2142c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor}; 2152c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2162c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/*--------------------------------------------------------------------------*/ 2172c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2180db6095d4ff8918350797dfe299d572980e82fa0David Brownellstatic int __init at91_cf_probe(struct platform_device *pdev) 2192c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 2202c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor struct at91_cf_socket *cf; 2210db6095d4ff8918350797dfe299d572980e82fa0David Brownell struct at91_cf_data *board = pdev->dev.platform_data; 2222c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell struct resource *io; 2232c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor int status; 2242c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 22580af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (!board || !gpio_is_valid(board->det_pin) || !gpio_is_valid(board->rst_pin)) 2262c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return -ENODEV; 2272c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2282c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell io = platform_get_resource(pdev, IORESOURCE_MEM, 0); 2292c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell if (!io) 2302c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell return -ENODEV; 2312c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell 232cd86128088554d64fea1679191509f00e6353c5bRobert P. J. Day cf = kzalloc(sizeof *cf, GFP_KERNEL); 2332c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (!cf) 2342c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return -ENOMEM; 2352c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2362c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->board = board; 2372c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->pdev = pdev; 238ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor cf->phys_baseaddr = io->start; 2390db6095d4ff8918350797dfe299d572980e82fa0David Brownell platform_set_drvdata(pdev, cf); 2402c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2412c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* must be a GPIO; ergo must trigger on both edges */ 2424c1fc445c29c6208c44e10c0253beea890bf5435David Brownell status = gpio_request(board->det_pin, "cf_det"); 2432c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (status < 0) 2442c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor goto fail0; 24580af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood status = request_irq(gpio_to_irq(board->det_pin), at91_cf_irq, 0, driver_name, cf); 2464c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (status < 0) 2474c1fc445c29c6208c44e10c0253beea890bf5435David Brownell goto fail00; 2480db6095d4ff8918350797dfe299d572980e82fa0David Brownell device_init_wakeup(&pdev->dev, 1); 2492c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2504c1fc445c29c6208c44e10c0253beea890bf5435David Brownell status = gpio_request(board->rst_pin, "cf_rst"); 2514c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (status < 0) 2524c1fc445c29c6208c44e10c0253beea890bf5435David Brownell goto fail0a; 2534c1fc445c29c6208c44e10c0253beea890bf5435David Brownell 25480af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->vcc_pin)) { 2554c1fc445c29c6208c44e10c0253beea890bf5435David Brownell status = gpio_request(board->vcc_pin, "cf_vcc"); 2564c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (status < 0) 2574c1fc445c29c6208c44e10c0253beea890bf5435David Brownell goto fail0b; 2584c1fc445c29c6208c44e10c0253beea890bf5435David Brownell } 2594c1fc445c29c6208c44e10c0253beea890bf5435David Brownell 2602c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* 2612c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * The card driver will request this irq later as needed. 2622c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * but it causes lots of "irqNN: nobody cared" messages 2632c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * unless we report that we handle everything (sigh). 2642c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor * (Note: DK board doesn't wire the IRQ pin...) 2652c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor */ 26680af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->irq_pin)) { 2674c1fc445c29c6208c44e10c0253beea890bf5435David Brownell status = gpio_request(board->irq_pin, "cf_irq"); 2684c1fc445c29c6208c44e10c0253beea890bf5435David Brownell if (status < 0) 2694c1fc445c29c6208c44e10c0253beea890bf5435David Brownell goto fail0c; 27080af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood status = request_irq(gpio_to_irq(board->irq_pin), at91_cf_irq, 271dace145374b8e39aeb920304c358ab5e220341abThomas Gleixner IRQF_SHARED, driver_name, cf); 2722c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (status < 0) 2734c1fc445c29c6208c44e10c0253beea890bf5435David Brownell goto fail0d; 27480af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood cf->socket.pci_irq = gpio_to_irq(board->irq_pin); 2752c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell } else 2769130addad2fb2bbe1847f13c838438ff10a66d3aYinghai Lu cf->socket.pci_irq = nr_irqs + 1; 2772c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2782c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor /* pcmcia layer only remaps "real" memory not iospace */ 2794c1fc445c29c6208c44e10c0253beea890bf5435David Brownell cf->socket.io_offset = (unsigned long) 2804c1fc445c29c6208c44e10c0253beea890bf5435David Brownell ioremap(cf->phys_baseaddr + CF_IO_PHYS, SZ_2K); 281ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor if (!cf->socket.io_offset) { 282ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor status = -ENXIO; 2832c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor goto fail1; 284ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor } 2852c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 28640a0017eb89c4c5a4bf81523edd867d730c9f143Andrew Victor /* reserve chip-select regions */ 28728f65c11f2ffb3957259dece647a24f8ad2e241bJoe Perches if (!request_mem_region(io->start, resource_size(io), driver_name)) { 288ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor status = -ENXIO; 2892c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor goto fail1; 290ebe5cfb3b9f0207ea1f4a0c24bf504deb19a37ccAndrew Victor } 2912c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2922c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pr_info("%s: irqs det #%d, io #%d\n", driver_name, 29380af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood gpio_to_irq(board->det_pin), gpio_to_irq(board->irq_pin)); 2942c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 2952c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->socket.owner = THIS_MODULE; 296e4a3c3f095ecc760fc557ca87e518e2e553fab4bAlexey Dobriyan cf->socket.dev.parent = &pdev->dev; 2972c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->socket.ops = &at91_cf_ops; 2982c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->socket.resource_ops = &pccard_static_ops; 2992c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP 3002c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor | SS_CAP_MEM_ALIGN; 3012c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor cf->socket.map_size = SZ_2K; 3022c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell cf->socket.io[0].res = io; 3032c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3042c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor status = pcmcia_register_socket(&cf->socket); 3052c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor if (status < 0) 3062c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor goto fail2; 3072c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3082c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 3092c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3102c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorfail2: 31128f65c11f2ffb3957259dece647a24f8ad2e241bJoe Perches release_mem_region(io->start, resource_size(io)); 3122c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorfail1: 3133efa9970bd0ac731302224ab9243693e91bc4beaAmol Lad if (cf->socket.io_offset) 3143efa9970bd0ac731302224ab9243693e91bc4beaAmol Lad iounmap((void __iomem *) cf->socket.io_offset); 31580af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->irq_pin)) { 31680af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood free_irq(gpio_to_irq(board->irq_pin), cf); 3174c1fc445c29c6208c44e10c0253beea890bf5435David Brownellfail0d: 3184c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->irq_pin); 3194c1fc445c29c6208c44e10c0253beea890bf5435David Brownell } 3204c1fc445c29c6208c44e10c0253beea890bf5435David Brownellfail0c: 32180af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->vcc_pin)) 3224c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->vcc_pin); 3234c1fc445c29c6208c44e10c0253beea890bf5435David Brownellfail0b: 3244c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->rst_pin); 3252c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorfail0a: 3261fbece150a230d0ab447cfb2fc4df10fb89f0d8cDavid Brownell device_init_wakeup(&pdev->dev, 0); 32780af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood free_irq(gpio_to_irq(board->det_pin), cf); 3284c1fc445c29c6208c44e10c0253beea890bf5435David Brownellfail00: 3294c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->det_pin); 3302c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorfail0: 3312c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor kfree(cf); 3322c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return status; 3332c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 3342c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3350db6095d4ff8918350797dfe299d572980e82fa0David Brownellstatic int __exit at91_cf_remove(struct platform_device *pdev) 3362c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 3370db6095d4ff8918350797dfe299d572980e82fa0David Brownell struct at91_cf_socket *cf = platform_get_drvdata(pdev); 3380db6095d4ff8918350797dfe299d572980e82fa0David Brownell struct at91_cf_data *board = cf->board; 3392c5362007bc0a46461a9d94958cdd53bb027004cDavid Brownell struct resource *io = cf->socket.io[0].res; 3402c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3412c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor pcmcia_unregister_socket(&cf->socket); 34228f65c11f2ffb3957259dece647a24f8ad2e241bJoe Perches release_mem_region(io->start, resource_size(io)); 3434c1fc445c29c6208c44e10c0253beea890bf5435David Brownell iounmap((void __iomem *) cf->socket.io_offset); 34480af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->irq_pin)) { 34580af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood free_irq(gpio_to_irq(board->irq_pin), cf); 3464c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->irq_pin); 3474c1fc445c29c6208c44e10c0253beea890bf5435David Brownell } 34880af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->vcc_pin)) 3494c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->vcc_pin); 3504c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->rst_pin); 3510db6095d4ff8918350797dfe299d572980e82fa0David Brownell device_init_wakeup(&pdev->dev, 0); 35280af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood free_irq(gpio_to_irq(board->det_pin), cf); 3534c1fc445c29c6208c44e10c0253beea890bf5435David Brownell gpio_free(board->det_pin); 3542c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor kfree(cf); 3552c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor return 0; 3562c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 3572c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 3580db6095d4ff8918350797dfe299d572980e82fa0David Brownell#ifdef CONFIG_PM 3590db6095d4ff8918350797dfe299d572980e82fa0David Brownell 3600db6095d4ff8918350797dfe299d572980e82fa0David Brownellstatic int at91_cf_suspend(struct platform_device *pdev, pm_message_t mesg) 3610db6095d4ff8918350797dfe299d572980e82fa0David Brownell{ 3620db6095d4ff8918350797dfe299d572980e82fa0David Brownell struct at91_cf_socket *cf = platform_get_drvdata(pdev); 3630db6095d4ff8918350797dfe299d572980e82fa0David Brownell struct at91_cf_data *board = cf->board; 3640db6095d4ff8918350797dfe299d572980e82fa0David Brownell 3651fbece150a230d0ab447cfb2fc4df10fb89f0d8cDavid Brownell if (device_may_wakeup(&pdev->dev)) { 36680af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood enable_irq_wake(gpio_to_irq(board->det_pin)); 36780af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->irq_pin)) 36880af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood enable_irq_wake(gpio_to_irq(board->irq_pin)); 3690db6095d4ff8918350797dfe299d572980e82fa0David Brownell } 3700db6095d4ff8918350797dfe299d572980e82fa0David Brownell return 0; 3710db6095d4ff8918350797dfe299d572980e82fa0David Brownell} 3720db6095d4ff8918350797dfe299d572980e82fa0David Brownell 3730db6095d4ff8918350797dfe299d572980e82fa0David Brownellstatic int at91_cf_resume(struct platform_device *pdev) 3740db6095d4ff8918350797dfe299d572980e82fa0David Brownell{ 3759af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat struct at91_cf_socket *cf = platform_get_drvdata(pdev); 3769af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat struct at91_cf_data *board = cf->board; 3779af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat 3789af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat if (device_may_wakeup(&pdev->dev)) { 37980af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood disable_irq_wake(gpio_to_irq(board->det_pin)); 38080af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood if (gpio_is_valid(board->irq_pin)) 38180af9e6d7ae633309cc5bca96aee6a45117e7c98Joachim Eastwood disable_irq_wake(gpio_to_irq(board->irq_pin)); 3829af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat } 3839af20376ee65cd2d13f7eb587fab70879d8c355bMarc Pignat 3840db6095d4ff8918350797dfe299d572980e82fa0David Brownell return 0; 3850db6095d4ff8918350797dfe299d572980e82fa0David Brownell} 3860db6095d4ff8918350797dfe299d572980e82fa0David Brownell 3870db6095d4ff8918350797dfe299d572980e82fa0David Brownell#else 3880db6095d4ff8918350797dfe299d572980e82fa0David Brownell#define at91_cf_suspend NULL 3890db6095d4ff8918350797dfe299d572980e82fa0David Brownell#define at91_cf_resume NULL 3900db6095d4ff8918350797dfe299d572980e82fa0David Brownell#endif 3910db6095d4ff8918350797dfe299d572980e82fa0David Brownell 3920db6095d4ff8918350797dfe299d572980e82fa0David Brownellstatic struct platform_driver at91_cf_driver = { 3930db6095d4ff8918350797dfe299d572980e82fa0David Brownell .driver = { 3940db6095d4ff8918350797dfe299d572980e82fa0David Brownell .name = (char *) driver_name, 3950db6095d4ff8918350797dfe299d572980e82fa0David Brownell .owner = THIS_MODULE, 3960db6095d4ff8918350797dfe299d572980e82fa0David Brownell }, 3972c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor .remove = __exit_p(at91_cf_remove), 3980db6095d4ff8918350797dfe299d572980e82fa0David Brownell .suspend = at91_cf_suspend, 3990db6095d4ff8918350797dfe299d572980e82fa0David Brownell .resume = at91_cf_resume, 4002c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor}; 4012c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 4022c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor/*--------------------------------------------------------------------------*/ 4032c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 4042c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic int __init at91_cf_init(void) 4052c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 40602c83595b86480ee4d61665beb13f76685d40239David Brownell return platform_driver_probe(&at91_cf_driver, at91_cf_probe); 4072c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 4082c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victormodule_init(at91_cf_init); 4092c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 4102c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victorstatic void __exit at91_cf_exit(void) 4112c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor{ 4120db6095d4ff8918350797dfe299d572980e82fa0David Brownell platform_driver_unregister(&at91_cf_driver); 4132c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor} 4142c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victormodule_exit(at91_cf_exit); 4152c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew Victor 4162c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew VictorMODULE_DESCRIPTION("AT91 Compact Flash Driver"); 4172c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew VictorMODULE_AUTHOR("David Brownell"); 4182c1f3b7a30286c16ba151fadb0abf0b20e2a1e45Andrew VictorMODULE_LICENSE("GPL"); 41912c2c019eb9b0b586a061b336766d11cca449499Kay SieversMODULE_ALIAS("platform:at91_cf"); 420