166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* 266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. 366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> 566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* This is a fairly generic PCMCIA socket driver suitable for the 966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * following Alchemy Development boards: 1064cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200, Db1300 1166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 1266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * The Db1000 is used as a reference: Per-socket card-, carddetect- and 1366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * statuschange IRQs connected to SoC GPIOs, control and status register 1466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * bits arranged in per-socket groups in an external PLD. All boards 1566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * listed here use this layout, including bit positions and meanings. 1666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * Of course there are exceptions in later boards: 1766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 1866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * - Pb1100/Pb1500: single socket only; voltage key bits VS are 1966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * at STATUS[5:4] (instead of STATUS[1:0]). 2066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * - Au1200-based: additional card-eject irqs, irqs not gpios! 2164cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss * - Db1300: Db1200-like, no pwr ctrl, single socket (#1). 2266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 2366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 2466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/delay.h> 2566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/gpio.h> 2666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/interrupt.h> 2766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/pm.h> 283bf8d64d394dc26b17abde97a541229a2a146ad2Paul Gortmaker#include <linux/module.h> 2966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/platform_device.h> 3066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/resource.h> 315a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 3266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <linux/spinlock.h> 3366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 3466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <pcmcia/ss.h> 3566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 3666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <asm/mach-au1x00/au1000.h> 3766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#include <asm/mach-db1x00/bcsr.h> 3866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 3966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define MEM_MAP_SIZE 0x400000 4066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define IO_MAP_SIZE 0x1000 4166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 4266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstruct db1x_pcmcia_sock { 4366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct pcmcia_socket socket; 4466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int nr; /* socket number */ 4566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss void *virt_io; 4666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 4711b897cf84c37e6522db914793677e933ef311fbManuel Lauss phys_addr_t phys_io; 4811b897cf84c37e6522db914793677e933ef311fbManuel Lauss phys_addr_t phys_attr; 4911b897cf84c37e6522db914793677e933ef311fbManuel Lauss phys_addr_t phys_mem; 5066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 5166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* previous flags for set_socket() */ 5266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned int old_flags; 5366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 5466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* interrupt sources: linux irq numbers! */ 5566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int insert_irq; /* default carddetect irq */ 5666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int stschg_irq; /* card-status-change irq */ 5766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int card_irq; /* card irq */ 5866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int eject_irq; /* db1200/pb1200 have these */ 5966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 6066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define BOARD_TYPE_DEFAULT 0 /* most boards */ 6166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ 6266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ 6364cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss#define BOARD_TYPE_DB1300 3 /* no power control */ 6466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int board_type; 6566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss}; 6666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 6766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) 6866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 6964cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Laussstatic int db1300_card_inserted(struct db1x_pcmcia_sock *sock) 7064cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss{ 7164cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss return bcsr_read(BCSR_SIGSTAT) & (1 << 8); 7264cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss} 7364cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss 7466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ 7566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1200_card_inserted(struct db1x_pcmcia_sock *sock) 7666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 7766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned short sigstat; 7866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 7966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sigstat = bcsr_read(BCSR_SIGSTAT); 8066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return sigstat & 1 << (8 + 2 * sock->nr); 8166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 8266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 8366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* carddetect gpio: low-active */ 8466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1000_card_inserted(struct db1x_pcmcia_sock *sock) 8566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 8666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return !gpio_get_value(irq_to_gpio(sock->insert_irq)); 8766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 8866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 8966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_card_inserted(struct db1x_pcmcia_sock *sock) 9066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 9166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss switch (sock->board_type) { 9266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BOARD_TYPE_DB1200: 9366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return db1200_card_inserted(sock); 9464cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss case BOARD_TYPE_DB1300: 9564cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss return db1300_card_inserted(sock); 9666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss default: 9766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return db1000_card_inserted(sock); 9866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 9966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 10066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 10166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* STSCHG tends to bounce heavily when cards are inserted/ejected. 10266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * To avoid this, the interrupt is normally disabled and only enabled 10366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * after reset to a card has been de-asserted. 10466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 10566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) 10666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 10766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->stschg_irq != -1) { 10866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (en) 10966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss enable_irq(sock->stschg_irq); 11066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss else 11166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss disable_irq(sock->stschg_irq); 11266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 11366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 11466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 11566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) 11666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 11766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = data; 11866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 11966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss pcmcia_parse_events(&sock->socket, SS_DETECT); 12066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 12166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return IRQ_HANDLED; 12266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 12366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 12466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) 12566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 12666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = data; 12766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 12866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss pcmcia_parse_events(&sock->socket, SS_STSCHG); 12966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 13066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return IRQ_HANDLED; 13166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 13266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 13366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) 13466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 13566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = data; 13666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 13766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* Db/Pb1200 have separate per-socket insertion and ejection 13866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * interrupts which stay asserted as long as the card is 13966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * inserted/missing. The one which caused us to be called 14066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * needs to be disabled and the other one enabled. 14166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 14266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (irq == sock->insert_irq) { 14366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss disable_irq_nosync(sock->insert_irq); 14466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss enable_irq(sock->eject_irq); 14566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } else { 14666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss disable_irq_nosync(sock->eject_irq); 14766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss enable_irq(sock->insert_irq); 14866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 14966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 15066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss pcmcia_parse_events(&sock->socket, SS_DETECT); 15166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 15266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return IRQ_HANDLED; 15366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 15466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 15566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) 15666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 15766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int ret; 15866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 15966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->stschg_irq != -1) { 16066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, 16166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 0, "pcmcia_stschg", sock); 16266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (ret) 16366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return ret; 16466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 16566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 16666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* Db/Pb1200 have separate per-socket insertion and ejection 16766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * interrupts, which should show edge behaviour but don't. 16866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * So interrupts are disabled until both insertion and 16966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * ejection handler have been registered and the currently 17066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * active one disabled. 17166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 17264cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss if ((sock->board_type == BOARD_TYPE_DB1200) || 17364cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss (sock->board_type == BOARD_TYPE_DB1300)) { 17466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, 17566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss IRQF_DISABLED, "pcmcia_insert", sock); 1760000a5390184af1459e82506fcfa7db96f3e6d33Manuel Lauss if (ret) 17766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out1; 17866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 17966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, 18066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss IRQF_DISABLED, "pcmcia_eject", sock); 18166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (ret) { 18266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss free_irq(sock->insert_irq, sock); 18366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out1; 18466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 18566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 1860000a5390184af1459e82506fcfa7db96f3e6d33Manuel Lauss /* enable the currently silent one */ 18764cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss if (db1x_card_inserted(sock)) 1880000a5390184af1459e82506fcfa7db96f3e6d33Manuel Lauss enable_irq(sock->eject_irq); 18966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss else 1900000a5390184af1459e82506fcfa7db96f3e6d33Manuel Lauss enable_irq(sock->insert_irq); 19166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } else { 19266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* all other (older) Db1x00 boards use a GPIO to show 19366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * card detection status: use both-edge triggers. 19466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 195dced35aeb0367dda2636ee9ee914bda14510dcc9Thomas Gleixner irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); 19666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, 19766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 0, "pcmcia_carddetect", sock); 19866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 19966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (ret) 20066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out1; 20166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 20266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 20366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; /* all done */ 20466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 20566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussout1: 20666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->stschg_irq != -1) 20766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss free_irq(sock->stschg_irq, sock); 20866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 20966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return ret; 21066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 21166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 21266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) 21366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 21466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->stschg_irq != -1) 21566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss free_irq(sock->stschg_irq, sock); 21666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 21766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss free_irq(sock->insert_irq, sock); 21866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->eject_irq != -1) 21966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss free_irq(sock->eject_irq, sock); 22066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 22166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 22266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* 22366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * configure a PCMCIA socket on the Db1x00 series of boards (and 22466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * compatibles). 22566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 22666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * 2 external registers are involved: 22766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id 22866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * pcmcia_control(offset 0x10): 22966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * bits[0:1] set vcc for card 23066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * bits[2:3] set vpp for card 23166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * bit 4: enable data buffers 23266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * bit 7: reset# for card 23366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * add 8 for second socket. 23466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 23566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_pcmcia_configure(struct pcmcia_socket *skt, 23666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct socket_state_t *state) 23766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 23866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); 23966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned short cr_clr, cr_set; 24066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned int changed; 24166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int v, p, ret; 24266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 24366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* card voltage setup */ 24466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ 24566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_set = 0; 24666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss v = p = ret = 0; 24766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 24866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss switch (state->Vcc) { 24966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 50: 25066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ++v; 25166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 33: 25266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ++v; 25366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 0: 25466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; 25566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss default: 25666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", 25766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr, state->Vcc); 25866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 25966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 26066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss switch (state->Vpp) { 26166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 12: 26266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ++p; 26366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 33: 26466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 50: 26566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ++p; 26666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 0: 26766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; 26866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss default: 26966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", 27066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr, state->Vpp); 27166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 27266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 27366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* sanity check: Vpp must be 0, 12, or Vcc */ 27466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (((state->Vcc == 33) && (state->Vpp == 50)) || 27566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ((state->Vcc == 50) && (state->Vpp == 33))) { 27666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", 27766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr, state->Vcc, state->Vpp); 27866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss v = p = 0; 27966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = -EINVAL; 28066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 28166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 28266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* create new voltage code */ 28364cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss if (sock->board_type != BOARD_TYPE_DB1300) 28464cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss cr_set |= ((v << 2) | p) << (sock->nr * 8); 28566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 28666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss changed = state->flags ^ sock->old_flags; 28766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 28866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (changed & SS_RESET) { 28966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (state->flags & SS_RESET) { 29066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss set_stschg(sock, 0); 29166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* assert reset, disable io buffers */ 29266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_clr |= (1 << (7 + (sock->nr * 8))); 29366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_clr |= (1 << (4 + (sock->nr * 8))); 29466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } else { 29566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* de-assert reset, enable io buffers */ 29666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_set |= 1 << (7 + (sock->nr * 8)); 29766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr_set |= 1 << (4 + (sock->nr * 8)); 29866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 29966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 30066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 30166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* update PCMCIA configuration */ 30266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set); 30366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 30466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->old_flags = state->flags; 30566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 30666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* reset was taken away: give card time to initialize properly */ 30766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if ((changed & SS_RESET) && !(state->flags & SS_RESET)) { 30866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss msleep(500); 30966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss set_stschg(sock, 1); 31066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 31166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 31266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return ret; 31366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 31466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 31566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* VCC bits at [3:2]/[11:10] */ 31666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define GET_VCC(cr, socknr) \ 31766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ((((cr) >> 2) >> ((socknr) * 8)) & 3) 31866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 31966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* VS bits at [0:1]/[3:2] */ 32066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define GET_VS(sr, socknr) \ 32166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss (((sr) >> (2 * (socknr))) & 3) 32266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 32366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss/* reset bits at [7]/[15] */ 32466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss#define GET_RESET(cr, socknr) \ 32566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ((cr) & (1 << (7 + (8 * (socknr))))) 32666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 32766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_pcmcia_get_status(struct pcmcia_socket *skt, 32866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned int *value) 32966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 33066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); 33166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned short cr, sr; 33266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss unsigned int status; 33366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 33466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss status = db1x_card_inserted(sock) ? SS_DETECT : 0; 33566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 33666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss cr = bcsr_read(BCSR_PCMCIA); 33766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sr = bcsr_read(BCSR_STATUS); 33866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 33966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* PB1100/PB1500: voltage key bits are at [5:4] */ 34066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (sock->board_type == BOARD_TYPE_PB1100) 34166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sr >>= 4; 34266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 34366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* determine card type */ 34466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss switch (GET_VS(sr, sock->nr)) { 34566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 0: 34666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 2: 34766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss status |= SS_3VCARD; /* 3V card */ 34866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case 3: 34966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; /* 5V card: set nothing */ 35066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss default: 35166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss status |= SS_XVCARD; /* treated as unsupported in core */ 35266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 35366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 35466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* if Vcc is not zero, we have applied power to a card */ 35566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; 35666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 35764cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss /* DB1300: power always on, but don't tell when no card present */ 35864cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss if ((sock->board_type == BOARD_TYPE_DB1300) && (status & SS_DETECT)) 35964cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss status = SS_POWERON | SS_3VCARD | SS_DETECT; 36064cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss 36166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* reset de-asserted? then we're ready */ 36266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; 36366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 36466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss *value = status; 36566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 36666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 36766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 36866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 36966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_pcmcia_sock_init(struct pcmcia_socket *skt) 37066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 37166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 37266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 37366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 37466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt) 37566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 37666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 37766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 37866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 37966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, 38066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct pccard_io_map *map) 38166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 38266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); 38366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 38466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss map->start = (u32)sock->virt_io; 38566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss map->stop = map->start + IO_MAP_SIZE; 38666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 38766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 38866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 38966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 39066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, 39166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct pccard_mem_map *map) 39266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 39366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); 39466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 39566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (map->flags & MAP_ATTRIB) 39666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss map->static_start = sock->phys_attr + map->card_start; 39766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss else 39866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss map->static_start = sock->phys_mem + map->card_start; 39966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 40066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 40166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 40266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 40366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic struct pccard_operations db1x_pcmcia_operations = { 40466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .init = db1x_pcmcia_sock_init, 40566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .suspend = db1x_pcmcia_sock_suspend, 40666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .get_status = db1x_pcmcia_get_status, 40766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .set_socket = db1x_pcmcia_configure, 40866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .set_io_map = au1x00_pcmcia_set_io_map, 40966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .set_mem_map = au1x00_pcmcia_set_mem_map, 41066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss}; 41166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 41266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) 41366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 41466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock; 41566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct resource *r; 41666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss int ret, bid; 41766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 41866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL); 41966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (!sock) 42066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return -ENOMEM; 42166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 42266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr = pdev->id; 42366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 42466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); 42566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss switch (bid) { 42666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BCSR_WHOAMI_PB1500: 42766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BCSR_WHOAMI_PB1500R2: 42866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BCSR_WHOAMI_PB1100: 42966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->board_type = BOARD_TYPE_PB1100; 43066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; 43166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR: 43266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->board_type = BOARD_TYPE_DEFAULT; 43366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; 43466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: 43566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->board_type = BOARD_TYPE_DB1200; 43666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss break; 43764cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss case BCSR_WHOAMI_DB1300: 43864cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss sock->board_type = BOARD_TYPE_DB1300; 43964cd04d0cffa3b3af0e81aa3112b71f135739e1aManuel Lauss break; 44066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss default: 44166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); 44266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = -ENODEV; 44366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out0; 44466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss }; 44566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 44666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* 44766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * gather resources necessary and optional nice-to-haves to 44866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * operate a socket: 44966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * This includes IRQs for Carddetection/ejection, the card 45066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * itself and optional status change detection. 45166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * Also, the memory areas covered by a socket. For these 452f25e188c892a9a82f8c3babf6fda304fff8cb3ccManuel Lauss * we require the real 36bit addresses (see the au1000.h 45366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * header for more information). 45466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 45566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 45666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* card: irq assigned to the card itself. */ 45766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card"); 45866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->card_irq = r ? r->start : 0; 45966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 46066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* insert: irq which triggers on card insertion/ejection */ 46166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert"); 46266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->insert_irq = r ? r->start : -1; 46366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 46466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* stschg: irq which trigger on card status change (optional) */ 46566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg"); 46666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->stschg_irq = r ? r->start : -1; 46766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 46866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* eject: irq which triggers on ejection (DB1200/PB1200 only) */ 46966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject"); 47066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->eject_irq = r ? r->start : -1; 47166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 47266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = -ENODEV; 47366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 474f25e188c892a9a82f8c3babf6fda304fff8cb3ccManuel Lauss /* 36bit PCMCIA Attribute area address */ 47511b897cf84c37e6522db914793677e933ef311fbManuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); 47666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (!r) { 47766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n", 47866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr); 47966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out0; 48066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 48166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->phys_attr = r->start; 48266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 483f25e188c892a9a82f8c3babf6fda304fff8cb3ccManuel Lauss /* 36bit PCMCIA Memory area address */ 48411b897cf84c37e6522db914793677e933ef311fbManuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); 48566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (!r) { 48666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n", 48766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr); 48866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out0; 48966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 49066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->phys_mem = r->start; 49166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 492f25e188c892a9a82f8c3babf6fda304fff8cb3ccManuel Lauss /* 36bit PCMCIA IO area address */ 49311b897cf84c37e6522db914793677e933ef311fbManuel Lauss r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); 49466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (!r) { 49566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n", 49666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr); 49766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out0; 49866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 49966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->phys_io = r->start; 50066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 50166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss /* 50266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * PCMCIA client drivers use the inb/outb macros to access 50366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * the IO registers. Since mips_io_port_base is added 50466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * to the access address of the mips implementation of 50566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * inb/outb, we need to subtract it here because we want 50666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * to access the I/O or MEM address directly, without 50766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss * going through this "mips_io_port_base" mechanism. 50866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss */ 50911b897cf84c37e6522db914793677e933ef311fbManuel Lauss sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - 51066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss mips_io_port_base); 51166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 51266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (!sock->virt_io) { 51366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d: cannot remap IO area\n", 51466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr); 51566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = -ENOMEM; 51666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out0; 51766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 51866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 51966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.ops = &db1x_pcmcia_operations; 52066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.owner = THIS_MODULE; 52166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.pci_irq = sock->card_irq; 52266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; 52366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.map_size = MEM_MAP_SIZE; 52466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.io_offset = (unsigned long)sock->virt_io; 52566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.dev.parent = &pdev->dev; 52666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->socket.resource_ops = &pccard_static_ops; 52766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 52866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss platform_set_drvdata(pdev, sock); 52966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 53066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = db1x_pcmcia_setup_irqs(sock); 53166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (ret) { 53266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d cannot setup interrupts\n", 53366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->nr); 53466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out1; 53566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 53666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 53766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss set_stschg(sock, 0); 53866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 53966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss ret = pcmcia_register_socket(&sock->socket); 54066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss if (ret) { 54166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr); 54266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss goto out2; 54366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss } 54466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 54511b897cf84c37e6522db914793677e933ef311fbManuel Lauss printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx" 54611b897cf84c37e6522db914793677e933ef311fbManuel Lauss "(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d " 54766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io, 54866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->phys_attr, sock->phys_mem, sock->card_irq, 54966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss sock->insert_irq, sock->stschg_irq, sock->eject_irq); 55066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 55166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 55266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 55366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussout2: 55466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss db1x_pcmcia_free_irqs(sock); 55566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussout1: 55666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); 55766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussout0: 55866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss kfree(sock); 55966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return ret; 56066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 56166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 56266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev) 56366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 56466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); 56566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 56666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss db1x_pcmcia_free_irqs(sock); 56766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss pcmcia_unregister_socket(&sock->socket); 56866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); 56966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss kfree(sock); 57066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 57166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return 0; 57266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 57366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 57466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussstatic struct platform_driver db1x_pcmcia_socket_driver = { 57566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .driver = { 57666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .name = "db1xxx_pcmcia", 57766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .owner = THIS_MODULE, 57866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss }, 57966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .probe = db1x_pcmcia_socket_probe, 58066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss .remove = __devexit_p(db1x_pcmcia_socket_remove), 58166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss}; 58266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 58366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussint __init db1x_pcmcia_socket_load(void) 58466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 58566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss return platform_driver_register(&db1x_pcmcia_socket_driver); 58666213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 58766213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 58866213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussvoid __exit db1x_pcmcia_socket_unload(void) 58966213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss{ 59066213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss platform_driver_unregister(&db1x_pcmcia_socket_driver); 59166213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss} 59266213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 59366213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussmodule_init(db1x_pcmcia_socket_load); 59466213b3ccfc770704025ce9465fa3aaedde21b55Manuel Laussmodule_exit(db1x_pcmcia_socket_unload); 59566213b3ccfc770704025ce9465fa3aaedde21b55Manuel Lauss 59666213b3ccfc770704025ce9465fa3aaedde21b55Manuel LaussMODULE_LICENSE("GPL"); 59766213b3ccfc770704025ce9465fa3aaedde21b55Manuel LaussMODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); 59866213b3ccfc770704025ce9465fa3aaedde21b55Manuel LaussMODULE_AUTHOR("Manuel Lauss"); 599