diff options
Diffstat (limited to 'drivers/pcmcia/db1xxx_ss.c')
| -rw-r--r-- | drivers/pcmcia/db1xxx_ss.c | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c index 27575e6378a..a31e69ea99f 100644 --- a/drivers/pcmcia/db1xxx_ss.c +++ b/drivers/pcmcia/db1xxx_ss.c @@ -7,7 +7,7 @@ /* This is a fairly generic PCMCIA socket driver suitable for the * following Alchemy Development boards: - * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200. + * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200, Db1300 * * The Db1000 is used as a reference: Per-socket card-, carddetect- and * statuschange IRQs connected to SoC GPIOs, control and status register @@ -18,12 +18,14 @@ * - Pb1100/Pb1500: single socket only; voltage key bits VS are * at STATUS[5:4] (instead of STATUS[1:0]). * - Au1200-based: additional card-eject irqs, irqs not gpios! + * - Db1300: Db1200-like, no pwr ctrl, single socket (#1). */ #include <linux/delay.h> #include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/pm.h> +#include <linux/module.h> #include <linux/platform_device.h> #include <linux/resource.h> #include <linux/slab.h> @@ -58,11 +60,17 @@ struct db1x_pcmcia_sock { #define BOARD_TYPE_DEFAULT 0 /* most boards */ #define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ #define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ +#define BOARD_TYPE_DB1300 3 /* no power control */ int board_type; }; #define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) +static int db1300_card_inserted(struct db1x_pcmcia_sock *sock) +{ + return bcsr_read(BCSR_SIGSTAT) & (1 << 8); +} + /* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) { @@ -83,6 +91,8 @@ static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) switch (sock->board_type) { case BOARD_TYPE_DB1200: return db1200_card_inserted(sock); + case BOARD_TYPE_DB1300: + return db1300_card_inserted(sock); default: return db1000_card_inserted(sock); } @@ -159,21 +169,22 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) * ejection handler have been registered and the currently * active one disabled. */ - if (sock->board_type == BOARD_TYPE_DB1200) { + if ((sock->board_type == BOARD_TYPE_DB1200) || + (sock->board_type == BOARD_TYPE_DB1300)) { ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, - IRQF_DISABLED, "pcmcia_insert", sock); + 0, "pcmcia_insert", sock); if (ret) goto out1; ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, - IRQF_DISABLED, "pcmcia_eject", sock); + 0, "pcmcia_eject", sock); if (ret) { free_irq(sock->insert_irq, sock); goto out1; } /* enable the currently silent one */ - if (db1200_card_inserted(sock)) + if (db1x_card_inserted(sock)) enable_irq(sock->eject_irq); else enable_irq(sock->insert_irq); @@ -181,7 +192,7 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) /* all other (older) Db1x00 boards use a GPIO to show * card detection status: use both-edge triggers. */ - set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); + irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, 0, "pcmcia_carddetect", sock); @@ -269,7 +280,8 @@ static int db1x_pcmcia_configure(struct pcmcia_socket *skt, } /* create new voltage code */ - cr_set |= ((v << 2) | p) << (sock->nr * 8); + if (sock->board_type != BOARD_TYPE_DB1300) + cr_set |= ((v << 2) | p) << (sock->nr * 8); changed = state->flags ^ sock->old_flags; @@ -342,6 +354,10 @@ static int db1x_pcmcia_get_status(struct pcmcia_socket *skt, /* if Vcc is not zero, we have applied power to a card */ status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; + /* DB1300: power always on, but don't tell when no card present */ + if ((sock->board_type == BOARD_TYPE_DB1300) && (status & SS_DETECT)) + status = SS_POWERON | SS_3VCARD | SS_DETECT; + /* reset de-asserted? then we're ready */ status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; @@ -393,7 +409,7 @@ static struct pccard_operations db1x_pcmcia_operations = { .set_mem_map = au1x00_pcmcia_set_mem_map, }; -static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) +static int db1x_pcmcia_socket_probe(struct platform_device *pdev) { struct db1x_pcmcia_sock *sock; struct resource *r; @@ -418,6 +434,9 @@ static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: sock->board_type = BOARD_TYPE_DB1200; break; + case BCSR_WHOAMI_DB1300: + sock->board_type = BOARD_TYPE_DB1300; + break; default: printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); ret = -ENODEV; @@ -540,7 +559,7 @@ out0: return ret; } -static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev) +static int db1x_pcmcia_socket_remove(struct platform_device *pdev) { struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); @@ -558,21 +577,10 @@ static struct platform_driver db1x_pcmcia_socket_driver = { .owner = THIS_MODULE, }, .probe = db1x_pcmcia_socket_probe, - .remove = __devexit_p(db1x_pcmcia_socket_remove), + .remove = db1x_pcmcia_socket_remove, }; -int __init db1x_pcmcia_socket_load(void) -{ - return platform_driver_register(&db1x_pcmcia_socket_driver); -} - -void __exit db1x_pcmcia_socket_unload(void) -{ - platform_driver_unregister(&db1x_pcmcia_socket_driver); -} - -module_init(db1x_pcmcia_socket_load); -module_exit(db1x_pcmcia_socket_unload); +module_platform_driver(db1x_pcmcia_socket_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); |