diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pcmcia/Makefile | 3 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x255.c | 154 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x270.c | 14 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_cm_x2xx.c | 49 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_trizeps4.c | 256 |
6 files changed, 464 insertions, 14 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index e0f884034c9..40417d3fe50 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -220,7 +220,7 @@ config PCMCIA_PXA2XX tristate "PXA2xx support" depends on ARM && ARCH_PXA && PCMCIA depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \ - || MACH_ARMCORE || ARCH_PXA_PALM) + || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA) help Say Y here to include support for the PXA2xx PCMCIA controller diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index c6d89fd3dcf..679ca927a62 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -71,7 +71,8 @@ sa1100_cs-$(CONFIG_SA1100_SIMPAD) += sa1100_simpad.o pxa2xx_cs-$(CONFIG_ARCH_LUBBOCK) += pxa2xx_lubbock.o sa1111_generic.o pxa2xx_cs-$(CONFIG_MACH_MAINSTONE) += pxa2xx_mainstone.o pxa2xx_cs-$(CONFIG_PXA_SHARPSL) += pxa2xx_sharpsl.o -pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x270.o +pxa2xx_cs-$(CONFIG_MACH_ARMCORE) += pxa2xx_cm_x2xx.o pxa2xx_cm_x255.o pxa2xx_cm_x270.o +pxa2xx_cs-$(CONFIG_TRIZEPS_PCMCIA) += pxa2xx_trizeps.o pxa2xx_cs-$(CONFIG_MACH_PALMTX) += pxa2xx_palmtx.o pxa2xx_cs-$(CONFIG_MACH_PALMLD) += pxa2xx_palmld.o diff --git a/drivers/pcmcia/pxa2xx_cm_x255.c b/drivers/pcmcia/pxa2xx_cm_x255.c new file mode 100644 index 00000000000..7c8bcb47662 --- /dev/null +++ b/drivers/pcmcia/pxa2xx_cm_x255.c @@ -0,0 +1,154 @@ +/* + * linux/drivers/pcmcia/pxa/pxa_cm_x255.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Compulab Ltd., 2003, 2007, 2008 + * Mike Rapoport <mike@compulab.co.il> + * + */ + +#include <linux/platform_device.h> +#include <linux/irq.h> +#include <linux/delay.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> +#include <mach/pxa-regs.h> + +#include "soc_common.h" + +#define GPIO_PCMCIA_SKTSEL (54) +#define GPIO_PCMCIA_S0_CD_VALID (16) +#define GPIO_PCMCIA_S1_CD_VALID (17) +#define GPIO_PCMCIA_S0_RDYINT (6) +#define GPIO_PCMCIA_S1_RDYINT (8) +#define GPIO_PCMCIA_RESET (9) + +#define PCMCIA_S0_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID) +#define PCMCIA_S1_CD_VALID IRQ_GPIO(GPIO_PCMCIA_S1_CD_VALID) +#define PCMCIA_S0_RDYINT IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT) +#define PCMCIA_S1_RDYINT IRQ_GPIO(GPIO_PCMCIA_S1_RDYINT) + + +static struct pcmcia_irqs irqs[] = { + { 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" }, + { 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" }, +}; + +static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int ret = gpio_request(GPIO_PCMCIA_RESET, "PCCard reset"); + if (ret) + return ret; + gpio_direction_output(GPIO_PCMCIA_RESET, 0); + + skt->irq = skt->nr == 0 ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT; + ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); + if (!ret) + gpio_free(GPIO_PCMCIA_RESET); + + return ret; +} + +static void cmx255_pcmcia_shutdown(struct soc_pcmcia_socket *skt) +{ + soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); + gpio_free(GPIO_PCMCIA_RESET); +} + + +static void cmx255_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + int cd = skt->nr ? GPIO_PCMCIA_S1_CD_VALID : GPIO_PCMCIA_S0_CD_VALID; + int rdy = skt->nr ? GPIO_PCMCIA_S0_RDYINT : GPIO_PCMCIA_S1_RDYINT; + + state->detect = !gpio_get_value(cd); + state->ready = !!gpio_get_value(rdy); + state->bvd1 = 1; + state->bvd2 = 1; + state->vs_3v = 0; + state->vs_Xv = 0; + state->wrprot = 0; /* not available */ +} + + +static int cmx255_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + switch (skt->nr) { + case 0: + if (state->flags & SS_RESET) { + gpio_set_value(GPIO_PCMCIA_SKTSEL, 0); + udelay(1); + gpio_set_value(GPIO_PCMCIA_RESET, 1); + udelay(10); + gpio_set_value(GPIO_PCMCIA_RESET, 0); + } + break; + case 1: + if (state->flags & SS_RESET) { + gpio_set_value(GPIO_PCMCIA_SKTSEL, 1); + udelay(1); + gpio_set_value(GPIO_PCMCIA_RESET, 1); + udelay(10); + gpio_set_value(GPIO_PCMCIA_RESET, 0); + } + break; + } + + return 0; +} + +static void cmx255_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ +} + +static void cmx255_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ +} + + +static struct pcmcia_low_level cmx255_pcmcia_ops __initdata = { + .owner = THIS_MODULE, + .hw_init = cmx255_pcmcia_hw_init, + .hw_shutdown = cmx255_pcmcia_shutdown, + .socket_state = cmx255_pcmcia_socket_state, + .configure_socket = cmx255_pcmcia_configure_socket, + .socket_init = cmx255_pcmcia_socket_init, + .socket_suspend = cmx255_pcmcia_socket_suspend, + .nr = 1, +}; + +static struct platform_device *cmx255_pcmcia_device; + +int __init cmx255_pcmcia_init(void) +{ + int ret; + + cmx255_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); + + if (!cmx255_pcmcia_device) + return -ENOMEM; + + ret = platform_device_add_data(cmx255_pcmcia_device, &cmx255_pcmcia_ops, + sizeof(cmx255_pcmcia_ops)); + + if (ret == 0) { + printk(KERN_INFO "Registering cm-x255 PCMCIA interface.\n"); + ret = platform_device_add(cmx255_pcmcia_device); + } + + if (ret) + platform_device_put(cmx255_pcmcia_device); + + return ret; +} + +void __exit cmx255_pcmcia_exit(void) +{ + platform_device_unregister(cmx255_pcmcia_device); +} diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c index bcff5cfed05..6c3aac37712 100644 --- a/drivers/pcmcia/pxa2xx_cm_x270.c +++ b/drivers/pcmcia/pxa2xx_cm_x270.c @@ -105,13 +105,10 @@ static struct pcmcia_low_level cmx270_pcmcia_ops __initdata = { static struct platform_device *cmx270_pcmcia_device; -static int __init cmx270_pcmcia_init(void) +int __init cmx270_pcmcia_init(void) { int ret; - if (!machine_is_armcore()) - return -ENODEV; - cmx270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); if (!cmx270_pcmcia_device) @@ -131,14 +128,7 @@ static int __init cmx270_pcmcia_init(void) return ret; } -static void __exit cmx270_pcmcia_exit(void) +void __exit cmx270_pcmcia_exit(void) { platform_device_unregister(cmx270_pcmcia_device); } - -module_init(cmx270_pcmcia_init); -module_exit(cmx270_pcmcia_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); -MODULE_DESCRIPTION("CM-x270 PCMCIA driver"); diff --git a/drivers/pcmcia/pxa2xx_cm_x2xx.c b/drivers/pcmcia/pxa2xx_cm_x2xx.c new file mode 100644 index 00000000000..4f09506ad8d --- /dev/null +++ b/drivers/pcmcia/pxa2xx_cm_x2xx.c @@ -0,0 +1,49 @@ +/* + * linux/drivers/pcmcia/pxa/pxa_cm_x2xx.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Compulab Ltd., 2003, 2007, 2008 + * Mike Rapoport <mike@compulab.co.il> + * + */ + +#include <linux/module.h> + +#include <asm/system.h> +#include <asm/mach-types.h> +#include <mach/system.h> + +int cmx255_pcmcia_init(void); +int cmx270_pcmcia_init(void); +void cmx255_pcmcia_exit(void); +void cmx270_pcmcia_exit(void); + +static int __init cmx2xx_pcmcia_init(void) +{ + int ret = -ENODEV; + + if (machine_is_armcore() && cpu_is_pxa25x()) + ret = cmx255_pcmcia_init(); + else if (machine_is_armcore() && cpu_is_pxa27x()) + ret = cmx270_pcmcia_init(); + + return ret; +} + +static void __exit cmx2xx_pcmcia_exit(void) +{ + if (machine_is_armcore() && cpu_is_pxa25x()) + cmx255_pcmcia_exit(); + else if (machine_is_armcore() && cpu_is_pxa27x()) + cmx270_pcmcia_exit(); +} + +module_init(cmx2xx_pcmcia_init); +module_exit(cmx2xx_pcmcia_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); +MODULE_DESCRIPTION("CM-x2xx PCMCIA driver"); diff --git a/drivers/pcmcia/pxa2xx_trizeps4.c b/drivers/pcmcia/pxa2xx_trizeps4.c new file mode 100644 index 00000000000..36c7a0b324d --- /dev/null +++ b/drivers/pcmcia/pxa2xx_trizeps4.c @@ -0,0 +1,256 @@ +/* + * linux/drivers/pcmcia/pxa2xx_trizeps4.c + * + * TRIZEPS PCMCIA specific routines. + * + * Author: Jürgen Schindele + * Created: 20 02, 2006 + * Copyright: Jürgen Schindele + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <mach/hardware.h> +#include <mach/pxa-regs.h> +#include <mach/trizeps4.h> + +#include "soc_common.h" + +extern void board_pcmcia_power(int power); + +static struct pcmcia_irqs irqs[] = { + { 0, IRQ_GPIO(GPIO_PCD), "cs0_cd" } + /* on other baseboards we can have more inputs */ +}; + +static int trizeps_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int ret, i; + /* we dont have voltage/card/ready detection + * so we dont need interrupts for it + */ + switch (skt->nr) { + case 0: + if (gpio_request(GPIO_PRDY, "cf_irq") < 0) { + pr_err("%s: sock %d unable to request gpio %d\n", __func__, + skt->nr, GPIO_PRDY); + return -EBUSY; + } + if (gpio_direction_input(GPIO_PRDY) < 0) { + pr_err("%s: sock %d unable to set input gpio %d\n", __func__, + skt->nr, GPIO_PRDY); + gpio_free(GPIO_PRDY); + return -EINVAL; + } + skt->irq = IRQ_GPIO(GPIO_PRDY); + break; + +#ifndef CONFIG_MACH_TRIZEPS_CONXS + case 1: +#endif + default: + break; + } + /* release the reset of this card */ + pr_debug("%s: sock %d irq %d\n", __func__, skt->nr, skt->irq); + + /* supplementory irqs for the socket */ + for (i = 0; i < ARRAY_SIZE(irqs); i++) { + if (irqs[i].sock != skt->nr) + continue; + if (gpio_request(IRQ_TO_GPIO(irqs[i].irq), irqs[i].str) < 0) { + pr_err("%s: sock %d unable to request gpio %d\n", + __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq)); + ret = -EBUSY; + goto error; + } + if (gpio_direction_input(IRQ_TO_GPIO(irqs[i].irq)) < 0) { + pr_err("%s: sock %d unable to set input gpio %d\n", + __func__, skt->nr, IRQ_TO_GPIO(irqs[i].irq)); + ret = -EINVAL; + goto error; + } + } + return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); + +error: + for (; i >= 0; i--) { + gpio_free(IRQ_TO_GPIO(irqs[i].irq)); + } + return (ret); +} + +static void trizeps_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + int i; + /* free allocated gpio's */ + gpio_free(GPIO_PRDY); + for (i = 0; i < ARRAY_SIZE(irqs); i++) + gpio_free(IRQ_TO_GPIO(irqs[i].irq)); +} + +static unsigned long trizeps_pcmcia_status[2]; + +static void trizeps_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + unsigned short status = 0, change; + status = CFSR_readw(); + change = (status ^ trizeps_pcmcia_status[skt->nr]) & + ConXS_CFSR_BVD_MASK; + if (change) { + trizeps_pcmcia_status[skt->nr] = status; + if (status & ConXS_CFSR_BVD1) { + /* enable_irq empty */ + } else { + /* disable_irq empty */ + } + } + + switch (skt->nr) { + case 0: + /* just fill in fix states */ + state->detect = gpio_get_value(GPIO_PCD) ? 0 : 1; + state->ready = gpio_get_value(GPIO_PRDY) ? 1 : 0; + state->bvd1 = (status & ConXS_CFSR_BVD1) ? 1 : 0; + state->bvd2 = (status & ConXS_CFSR_BVD2) ? 1 : 0; + state->vs_3v = (status & ConXS_CFSR_VS1) ? 0 : 1; + state->vs_Xv = (status & ConXS_CFSR_VS2) ? 0 : 1; + state->wrprot = 0; /* not available */ + break; + +#ifndef CONFIG_MACH_TRIZEPS_CONXS + /* on ConXS we only have one slot. Second is inactive */ + case 1: + state->detect = 0; + state->ready = 0; + state->bvd1 = 0; + state->bvd2 = 0; + state->vs_3v = 0; + state->vs_Xv = 0; + state->wrprot = 0; + break; + +#endif + } +} + +static int trizeps_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + int ret = 0; + unsigned short power = 0; + + /* we do nothing here just check a bit */ + switch (state->Vcc) { + case 0: power &= 0xfc; break; + case 33: power |= ConXS_BCR_S0_VCC_3V3; break; + case 50: + pr_err("%s(): Vcc 5V not supported in socket\n", __func__); + break; + default: + pr_err("%s(): bad Vcc %u\n", __func__, state->Vcc); + ret = -1; + } + + switch (state->Vpp) { + case 0: power &= 0xf3; break; + case 33: power |= ConXS_BCR_S0_VPP_3V3; break; + case 120: + pr_err("%s(): Vpp 12V not supported in socket\n", __func__); + break; + default: + if (state->Vpp != state->Vcc) { + pr_err("%s(): bad Vpp %u\n", __func__, state->Vpp); + ret = -1; + } + } + + switch (skt->nr) { + case 0: /* we only have 3.3V */ + board_pcmcia_power(power); + break; + +#ifndef CONFIG_MACH_TRIZEPS_CONXS + /* on ConXS we only have one slot. Second is inactive */ + case 1: +#endif + default: + break; + } + + return ret; +} + +static void trizeps_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ + /* default is on */ + board_pcmcia_power(0x9); +} + +static void trizeps_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ + board_pcmcia_power(0x0); +} + +static struct pcmcia_low_level trizeps_pcmcia_ops = { + .owner = THIS_MODULE, + .hw_init = trizeps_pcmcia_hw_init, + .hw_shutdown = trizeps_pcmcia_hw_shutdown, + .socket_state = trizeps_pcmcia_socket_state, + .configure_socket = trizeps_pcmcia_configure_socket, + .socket_init = trizeps_pcmcia_socket_init, + .socket_suspend = trizeps_pcmcia_socket_suspend, +#ifdef CONFIG_MACH_TRIZEPS_CONXS + .nr = 1, +#else + .nr = 2, +#endif + .first = 0, +}; + +static struct platform_device *trizeps_pcmcia_device; + +static int __init trizeps_pcmcia_init(void) +{ + int ret; + + trizeps_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); + if (!trizeps_pcmcia_device) + return -ENOMEM; + + ret = platform_device_add_data(trizeps_pcmcia_device, + &trizeps_pcmcia_ops, sizeof(trizeps_pcmcia_ops)); + + if (ret == 0) + ret = platform_device_add(trizeps_pcmcia_device); + + if (ret) + platform_device_put(trizeps_pcmcia_device); + + return ret; +} + +static void __exit trizeps_pcmcia_exit(void) +{ + platform_device_unregister(trizeps_pcmcia_device); +} + +fs_initcall(trizeps_pcmcia_init); +module_exit(trizeps_pcmcia_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Juergen Schindele"); +MODULE_ALIAS("platform:pxa2xx-pcmcia"); |