diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/orion_nand.c | 47 | ||||
| -rw-r--r-- | drivers/pcmcia/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pcmcia/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pcmcia/pxa2xx_hx4700.c | 121 |
4 files changed, 167 insertions, 4 deletions
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 1d3bfb2..0f50ef3 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> @@ -74,11 +75,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static int __init orion_nand_probe(struct platform_device *pdev) { struct mtd_info *mtd; + struct mtd_part_parser_data ppdata = {}; struct nand_chip *nc; struct orion_nand_data *board; struct resource *res; void __iomem *io_base; int ret = 0; + u32 val = 0; nc = kzalloc(sizeof(struct nand_chip) + sizeof(struct mtd_info), GFP_KERNEL); if (!nc) { @@ -101,7 +104,32 @@ static int __init orion_nand_probe(struct platform_device *pdev) goto no_res; } - board = pdev->dev.platform_data; + if (pdev->dev.of_node) { + board = devm_kzalloc(&pdev->dev, sizeof(struct orion_nand_data), + GFP_KERNEL); + if (!board) { + printk(KERN_ERR "orion_nand: failed to allocate board structure.\n"); + ret = -ENOMEM; + goto no_res; + } + if (!of_property_read_u32(pdev->dev.of_node, "cle", &val)) + board->cle = (u8)val; + else + board->cle = 0; + if (!of_property_read_u32(pdev->dev.of_node, "ale", &val)) + board->ale = (u8)val; + else + board->ale = 1; + if (!of_property_read_u32(pdev->dev.of_node, + "bank-width", &val)) + board->width = (u8)val * 8; + else + board->width = 8; + if (!of_property_read_u32(pdev->dev.of_node, + "chip-delay", &val)) + board->chip_delay = (u8)val; + } else + board = pdev->dev.platform_data; mtd->priv = nc; mtd->owner = THIS_MODULE; @@ -115,6 +143,10 @@ static int __init orion_nand_probe(struct platform_device *pdev) if (board->chip_delay) nc->chip_delay = board->chip_delay; + WARN(board->width > 16, + "%d bit bus width out of range", + board->width); + if (board->width == 16) nc->options |= NAND_BUSWIDTH_16; @@ -129,8 +161,9 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd->name = "orion_nand"; - ret = mtd_device_parse_register(mtd, NULL, NULL, board->parts, - board->nr_parts); + ppdata.of_node = pdev->dev.of_node; + ret = mtd_device_parse_register(mtd, NULL, &ppdata, + board->parts, board->nr_parts); if (ret) { nand_release(mtd); goto no_dev; @@ -161,11 +194,19 @@ static int __devexit orion_nand_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static struct of_device_id orion_nand_of_match_table[] = { + { .compatible = "mrvl,orion-nand", }, + {}, +}; +#endif + static struct platform_driver orion_nand_driver = { .remove = __devexit_p(orion_nand_remove), .driver = { .name = "orion_nand", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(orion_nand_of_match_table), }, }; diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index bba3ab2..8fd255f 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -217,7 +217,7 @@ config PCMCIA_PXA2XX || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \ || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \ || MACH_VPAC270 || MACH_BALLOON3 || MACH_COLIBRI \ - || MACH_COLIBRI320) + || MACH_COLIBRI320 || MACH_H4700) select PCMCIA_SA1111 if ARCH_LUBBOCK && SA1111 select PCMCIA_SOC_COMMON help diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 47525de..7745b51 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -69,6 +69,7 @@ pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o pxa2xx-obj-$(CONFIG_MACH_BALLOON3) += pxa2xx_balloon3.o pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += pxa2xx_colibri.o pxa2xx-obj-$(CONFIG_MACH_COLIBRI320) += pxa2xx_colibri.o +pxa2xx-obj-$(CONFIG_MACH_H4700) += pxa2xx_hx4700.o obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y) diff --git a/drivers/pcmcia/pxa2xx_hx4700.c b/drivers/pcmcia/pxa2xx_hx4700.c new file mode 100644 index 0000000..7dfef3e --- /dev/null +++ b/drivers/pcmcia/pxa2xx_hx4700.c @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2012 Paul Parsons <lost.distance@yahoo.com> + * + * 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/platform_device.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/irq.h> + +#include <asm/mach-types.h> +#include <mach/hx4700.h> + +#include "soc_common.h" + +static struct gpio gpios[] = { + { GPIO114_HX4700_CF_RESET, GPIOF_OUT_INIT_LOW, "CF reset" }, + { EGPIO4_CF_3V3_ON, GPIOF_OUT_INIT_LOW, "CF 3.3V enable" }, +}; + +static int hx4700_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int ret; + + ret = gpio_request_array(gpios, ARRAY_SIZE(gpios)); + if (ret) + goto out; + + /* + * IRQ type must be set before soc_pcmcia_hw_init() calls request_irq(). + * The asic3 default IRQ type is level trigger low level detect, exactly + * the the signal present on GPIOD4_CF_nCD when a CF card is inserted. + * If the IRQ type is not changed, the asic3 interrupt handler will loop + * repeatedly because it is unable to clear the level trigger interrupt. + */ + irq_set_irq_type(gpio_to_irq(GPIOD4_CF_nCD), IRQ_TYPE_EDGE_BOTH); + + skt->stat[SOC_STAT_CD].gpio = GPIOD4_CF_nCD; + skt->stat[SOC_STAT_CD].name = "PCMCIA CD"; + skt->stat[SOC_STAT_RDY].gpio = GPIO60_HX4700_CF_RNB; + skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready"; + +out: + return ret; +} + +static void hx4700_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + gpio_free_array(gpios, ARRAY_SIZE(gpios)); +} + +static void hx4700_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + state->vs_3v = 1; + state->vs_Xv = 0; +} + +static int hx4700_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + switch (state->Vcc) { + case 0: + gpio_set_value(EGPIO4_CF_3V3_ON, 0); + break; + case 33: + gpio_set_value(EGPIO4_CF_3V3_ON, 1); + break; + default: + printk(KERN_ERR "pcmcia: Unsupported Vcc: %d\n", state->Vcc); + return -EINVAL; + } + + gpio_set_value(GPIO114_HX4700_CF_RESET, (state->flags & SS_RESET) != 0); + + return 0; +} + +static struct pcmcia_low_level hx4700_pcmcia_ops = { + .owner = THIS_MODULE, + .nr = 1, + .hw_init = hx4700_pcmcia_hw_init, + .hw_shutdown = hx4700_pcmcia_hw_shutdown, + .socket_state = hx4700_pcmcia_socket_state, + .configure_socket = hx4700_pcmcia_configure_socket, +}; + +static struct platform_device *hx4700_pcmcia_device; + +static int __init hx4700_pcmcia_init(void) +{ + struct platform_device *pdev; + + if (!machine_is_h4700()) + return -ENODEV; + + pdev = platform_device_register_data(NULL, "pxa2xx-pcmcia", -1, + &hx4700_pcmcia_ops, sizeof(hx4700_pcmcia_ops)); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + hx4700_pcmcia_device = pdev; + + return 0; +} + +static void __exit hx4700_pcmcia_exit(void) +{ + platform_device_unregister(hx4700_pcmcia_device); +} + +module_init(hx4700_pcmcia_init); +module_exit(hx4700_pcmcia_exit); + +MODULE_AUTHOR("Paul Parsons <lost.distance@yahoo.com>"); +MODULE_DESCRIPTION("HP iPAQ hx4700 PCMCIA driver"); +MODULE_LICENSE("GPL"); |