From 2ee30f0511758c1a21d3346bb88f25f7645ba108 Mon Sep 17 00:00:00 2001 From: Afzal Mohammed Date: Thu, 30 Aug 2012 12:53:24 -0700 Subject: [PATCH] ARM: OMAP2+: gpmc-nand: Modify Interrupt handling Now GPMC provides its client with interrupts that can be handled using the standard interrupt API. Modify GPMC NAND setup to work with it. Also disable write protect in GPMC code, so that NAND driver can be ignorant of GPMC configuration. Signed-off-by: Afzal Mohammed Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/gpmc-nand.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c index c0320d2eb40f..045596a3e899 100644 --- a/arch/arm/mach-omap2/gpmc-nand.c +++ b/arch/arm/mach-omap2/gpmc-nand.c @@ -21,15 +21,23 @@ #include #include -static struct resource gpmc_nand_resource = { - .flags = IORESOURCE_MEM, +static struct resource gpmc_nand_resource[] = { + { + .flags = IORESOURCE_MEM, + }, + { + .flags = IORESOURCE_IRQ, + }, + { + .flags = IORESOURCE_IRQ, + }, }; static struct platform_device gpmc_nand_device = { .name = "omap2-nand", .id = 0, - .num_resources = 1, - .resource = &gpmc_nand_resource, + .num_resources = ARRAY_SIZE(gpmc_nand_resource), + .resource = gpmc_nand_resource, }; static int omap2_nand_gpmc_retime(struct omap_nand_platform_data *gpmc_nand_data) @@ -75,6 +83,7 @@ static int omap2_nand_gpmc_retime(struct omap_nand_platform_data *gpmc_nand_data gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_DEV_SIZE, 0); gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_DEV_TYPE, GPMC_DEVICETYPE_NAND); + gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_WP, 0); err = gpmc_cs_set_timings(gpmc_nand_data->cs, &t); if (err) return err; @@ -90,14 +99,19 @@ int __init gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data) gpmc_nand_device.dev.platform_data = gpmc_nand_data; err = gpmc_cs_request(gpmc_nand_data->cs, NAND_IO_SIZE, - (unsigned long *)&gpmc_nand_resource.start); + (unsigned long *)&gpmc_nand_resource[0].start); if (err < 0) { dev_err(dev, "Cannot request GPMC CS\n"); return err; } - gpmc_nand_resource.end = gpmc_nand_resource.start + NAND_IO_SIZE - 1; + gpmc_nand_resource[0].end = gpmc_nand_resource[0].start + + NAND_IO_SIZE - 1; + gpmc_nand_resource[1].start = + gpmc_get_client_irq(GPMC_IRQ_FIFOEVENTENABLE); + gpmc_nand_resource[2].start = + gpmc_get_client_irq(GPMC_IRQ_COUNT_EVENT); /* Set timings in GPMC */ err = omap2_nand_gpmc_retime(gpmc_nand_data); if (err < 0) { -- 2.39.5