284d115ec9
The PXA25x and PXA27x USB device controller register definitions are different. Currently, they live side by side in pxa-regs.h, but only one set is available depending on the setting of PXA25x or PXA27x. This means that if we build to support both PXA25x and PXA27x, the PXA27x definitions are unavailable, even to PXA27x specific code. Remove these definitions from pxa-regs.h, and place them in separate files. Include these files where appropriate. Note: according to the dependencies in drivers/usb/gadget/Kconfig, we do not support the UDC on PXA27x nor PXA3xx CPUs, so remove the platform devices from pxa27x.c and pxa3xx.c. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
357 lines
7.7 KiB
C
357 lines
7.7 KiB
C
/*
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* Support for CompuLab EM-x270 platform
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*
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* Copyright (C) 2007 CompuLab, Ltd.
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* Author: Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/dm9000.h>
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#include <linux/rtc-v3020.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/pxa2xx-gpio.h>
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#include <asm/arch/pxa27x-udc.h>
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#include <asm/arch/pxafb.h>
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#include <asm/arch/ohci.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/bitfield.h>
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#include "generic.h"
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/* GPIO IRQ usage */
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#define EM_X270_MMC_PD (105)
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#define EM_X270_ETHIRQ IRQ_GPIO(41)
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#define EM_X270_MMC_IRQ IRQ_GPIO(13)
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static struct resource em_x270_dm9k_resource[] = {
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[0] = {
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.start = PXA_CS2_PHYS,
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.end = PXA_CS2_PHYS + 3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_CS2_PHYS + 8,
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.end = PXA_CS2_PHYS + 8 + 0x3f,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = EM_X270_ETHIRQ,
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.end = EM_X270_ETHIRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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/* for the moment we limit ourselves to 32bit IO until some
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* better IO routines can be written and tested
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*/
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static struct dm9000_plat_data em_x270_dm9k_platdata = {
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.flags = DM9000_PLATF_32BITONLY,
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};
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/* Ethernet device */
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static struct platform_device em_x270_dm9k = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(em_x270_dm9k_resource),
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.resource = em_x270_dm9k_resource,
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.dev = {
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.platform_data = &em_x270_dm9k_platdata,
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}
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};
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/* audio device */
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static struct platform_device em_x270_audio = {
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.name = "pxa2xx-ac97",
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.id = -1,
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};
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/* WM9712 touchscreen controller. Hopefully the driver will make it to
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* the mainstream sometime */
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static struct platform_device em_x270_ts = {
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.name = "wm97xx-ts",
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.id = -1,
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};
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/* RTC */
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static struct resource em_x270_v3020_resource[] = {
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[0] = {
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.start = PXA_CS4_PHYS,
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.end = PXA_CS4_PHYS + 3,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct v3020_platform_data em_x270_v3020_platdata = {
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.leftshift = 0,
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};
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static struct platform_device em_x270_rtc = {
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.name = "v3020",
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.num_resources = ARRAY_SIZE(em_x270_v3020_resource),
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.resource = em_x270_v3020_resource,
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.id = -1,
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.dev = {
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.platform_data = &em_x270_v3020_platdata,
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}
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};
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/* NAND flash */
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#define GPIO_NAND_CS (11)
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#define GPIO_NAND_RB (56)
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static inline void nand_cs_on(void)
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{
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GPCR(GPIO_NAND_CS) = GPIO_bit(GPIO_NAND_CS);
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}
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static void nand_cs_off(void)
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{
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dsb();
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GPSR(GPIO_NAND_CS) = GPIO_bit(GPIO_NAND_CS);
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}
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/* hardware specific access to control-lines */
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static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat,
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unsigned int ctrl)
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{
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struct nand_chip *this = mtd->priv;
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unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
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dsb();
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if (ctrl & NAND_CTRL_CHANGE) {
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if (ctrl & NAND_ALE)
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nandaddr |= (1 << 3);
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else
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nandaddr &= ~(1 << 3);
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if (ctrl & NAND_CLE)
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nandaddr |= (1 << 2);
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else
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nandaddr &= ~(1 << 2);
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if (ctrl & NAND_NCE)
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nand_cs_on();
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else
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nand_cs_off();
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}
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dsb();
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this->IO_ADDR_W = (void __iomem *)nandaddr;
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if (dat != NAND_CMD_NONE)
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writel(dat, this->IO_ADDR_W);
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dsb();
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}
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/* read device ready pin */
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static int em_x270_nand_device_ready(struct mtd_info *mtd)
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{
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dsb();
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return GPLR(GPIO_NAND_RB) & GPIO_bit(GPIO_NAND_RB);
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}
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static struct mtd_partition em_x270_partition_info[] = {
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[0] = {
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.name = "em_x270-0",
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.offset = 0,
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.size = SZ_4M,
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},
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[1] = {
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.name = "em_x270-1",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL
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},
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};
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static const char *em_x270_part_probes[] = { "cmdlinepart", NULL };
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struct platform_nand_data em_x270_nand_platdata = {
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.chip = {
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.nr_chips = 1,
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.chip_offset = 0,
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.nr_partitions = ARRAY_SIZE(em_x270_partition_info),
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.partitions = em_x270_partition_info,
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.chip_delay = 20,
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.part_probe_types = em_x270_part_probes,
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},
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.ctrl = {
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.hwcontrol = 0,
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.dev_ready = em_x270_nand_device_ready,
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.select_chip = 0,
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.cmd_ctrl = em_x270_nand_cmd_ctl,
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},
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};
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static struct resource em_x270_nand_resource[] = {
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[0] = {
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.start = PXA_CS1_PHYS,
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.end = PXA_CS1_PHYS + 12,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device em_x270_nand = {
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.name = "gen_nand",
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.num_resources = ARRAY_SIZE(em_x270_nand_resource),
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.resource = em_x270_nand_resource,
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.id = -1,
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.dev = {
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.platform_data = &em_x270_nand_platdata,
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}
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};
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/* platform devices */
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static struct platform_device *platform_devices[] __initdata = {
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&em_x270_dm9k,
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&em_x270_audio,
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&em_x270_ts,
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&em_x270_rtc,
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&em_x270_nand,
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};
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/* PXA27x OHCI controller setup */
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static int em_x270_ohci_init(struct device *dev)
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{
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/* Set the Power Control Polarity Low */
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UHCHR = (UHCHR | UHCHR_PCPL) &
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~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE);
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/* enable port 2 transiever */
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UP2OCR = UP2OCR_HXS | UP2OCR_HXOE;
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return 0;
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}
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static struct pxaohci_platform_data em_x270_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.init = em_x270_ohci_init,
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};
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static int em_x270_mci_init(struct device *dev,
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irq_handler_t em_x270_detect_int,
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void *data)
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{
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int err;
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/* setup GPIO for PXA27x MMC controller */
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pxa_gpio_mode(GPIO32_MMCCLK_MD);
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pxa_gpio_mode(GPIO112_MMCCMD_MD);
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pxa_gpio_mode(GPIO92_MMCDAT0_MD);
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pxa_gpio_mode(GPIO109_MMCDAT1_MD);
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pxa_gpio_mode(GPIO110_MMCDAT2_MD);
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pxa_gpio_mode(GPIO111_MMCDAT3_MD);
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/* EM-X270 uses GPIO13 as SD power enable */
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pxa_gpio_mode(EM_X270_MMC_PD | GPIO_OUT);
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err = request_irq(EM_X270_MMC_IRQ, em_x270_detect_int,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err) {
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printk(KERN_ERR "%s: can't request MMC card detect IRQ: %d\n",
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__func__, err);
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return err;
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}
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return 0;
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}
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static void em_x270_mci_setpower(struct device *dev, unsigned int vdd)
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{
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/*
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FIXME: current hardware implementation does not allow to
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enable/disable MMC power. This will be fixed in next HW releases,
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and we'll need to add implmentation here.
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*/
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return;
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}
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static void em_x270_mci_exit(struct device *dev, void *data)
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{
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free_irq(EM_X270_MMC_IRQ, data);
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}
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static struct pxamci_platform_data em_x270_mci_platform_data = {
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.ocr_mask = MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31,
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.init = em_x270_mci_init,
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.setpower = em_x270_mci_setpower,
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.exit = em_x270_mci_exit,
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};
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/* LCD 480x640 */
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static struct pxafb_mode_info em_x270_lcd_mode = {
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.pixclock = 50000,
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.bpp = 16,
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.xres = 480,
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.yres = 640,
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.hsync_len = 8,
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.vsync_len = 2,
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.left_margin = 8,
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.upper_margin = 0,
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.right_margin = 24,
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.lower_margin = 4,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info em_x270_lcd = {
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.modes = &em_x270_lcd_mode,
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.num_modes = 1,
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.cmap_inverse = 0,
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.cmap_static = 0,
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.lccr0 = LCCR0_PAS,
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.lccr3 = LCCR3_PixClkDiv(0x01) | LCCR3_Acb(0xff),
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};
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static void __init em_x270_init(void)
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{
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/* setup LCD */
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set_pxa_fb_info(&em_x270_lcd);
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/* register EM-X270 platform devices */
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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/* set MCI and OHCI platform parameters */
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pxa_set_mci_info(&em_x270_mci_platform_data);
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pxa_set_ohci_info(&em_x270_ohci_platform_data);
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/* setup STUART GPIOs */
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pxa_gpio_mode(GPIO46_STRXD_MD);
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pxa_gpio_mode(GPIO47_STTXD_MD);
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/* setup BTUART GPIOs */
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pxa_gpio_mode(GPIO42_BTRXD_MD);
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pxa_gpio_mode(GPIO43_BTTXD_MD);
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pxa_gpio_mode(GPIO44_BTCTS_MD);
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pxa_gpio_mode(GPIO45_BTRTS_MD);
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/* Setup interrupt for dm9000 */
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set_irq_type(EM_X270_ETHIRQ, IRQT_RISING);
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}
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MACHINE_START(EM_X270, "Compulab EM-x270")
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.boot_params = 0xa0000100,
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.map_io = pxa_map_io,
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.init_irq = pxa27x_init_irq,
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.timer = &pxa_timer,
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.init_machine = em_x270_init,
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MACHINE_END
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