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fcf173e451
Soon resource data will get automatically populated from a set of autogenerated data from TI's hardware database for the OMAP platform. Such database, might not have resources at the expected order by the current drivers. While we could hack in some exceptions to that tool to generate resources in a specific order, it seems less fragile to use the resource name instead. That way, no matter what order the resources are generated, the driver still work. Modified the OMAP, Blackfin and Davinci architecture files to add the name of the IRQs in the resource structures and musb driver to use the platform_get_irq_byname() api to get the device and dma irq numbers instead of using the index. Cc: Tony Lindgren <tony@atomide.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
125 lines
3.2 KiB
C
125 lines
3.2 KiB
C
/*
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* linux/arch/arm/mach-omap2/usb-musb.c
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*
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* This file will contain the board specific details for the
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* MENTOR USB OTG controller on OMAP3430
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*
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* Copyright (C) 2007-2008 Texas Instruments
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* Copyright (C) 2008 Nokia Corporation
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* Author: Vikram Pandita
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*
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* Generalization by:
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* Felipe Balbi <felipe.balbi@nokia.com>
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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/types.h>
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#include <linux/errno.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/dma-mapping.h>
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#include <linux/io.h>
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#include <linux/usb/musb.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <mach/am35xx.h>
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#include <plat/usb.h>
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#ifdef CONFIG_USB_MUSB_SOC
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static struct resource musb_resources[] = {
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[0] = { /* start and end set dynamically */
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.flags = IORESOURCE_MEM,
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},
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[1] = { /* general IRQ */
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.start = INT_243X_HS_USB_MC,
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.flags = IORESOURCE_IRQ,
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.name = "mc",
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},
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[2] = { /* DMA IRQ */
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.start = INT_243X_HS_USB_DMA,
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.flags = IORESOURCE_IRQ,
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.name = "dma",
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},
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};
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static struct musb_hdrc_config musb_config = {
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.multipoint = 1,
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.dyn_fifo = 1,
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.num_eps = 16,
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.ram_bits = 12,
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};
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static struct musb_hdrc_platform_data musb_plat = {
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#ifdef CONFIG_USB_MUSB_OTG
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.mode = MUSB_OTG,
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#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
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.mode = MUSB_HOST,
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#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
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.mode = MUSB_PERIPHERAL,
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#endif
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/* .clock is set dynamically */
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.config = &musb_config,
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/* REVISIT charge pump on TWL4030 can supply up to
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* 100 mA ... but this value is board-specific, like
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* "mode", and should be passed to usb_musb_init().
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*/
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.power = 50, /* up to 100 mA */
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};
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static u64 musb_dmamask = DMA_BIT_MASK(32);
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static struct platform_device musb_device = {
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.name = "musb_hdrc",
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.id = -1,
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.dev = {
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.dma_mask = &musb_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &musb_plat,
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},
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.num_resources = ARRAY_SIZE(musb_resources),
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.resource = musb_resources,
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};
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void __init usb_musb_init(struct omap_musb_board_data *board_data)
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{
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if (cpu_is_omap243x()) {
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musb_resources[0].start = OMAP243X_HS_BASE;
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} else if (cpu_is_omap3517() || cpu_is_omap3505()) {
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musb_resources[0].start = AM35XX_IPSS_USBOTGSS_BASE;
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musb_resources[1].start = INT_35XX_USBOTG_IRQ;
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} else if (cpu_is_omap34xx()) {
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musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
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} else if (cpu_is_omap44xx()) {
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musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;
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musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;
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musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;
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}
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musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;
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/*
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* REVISIT: This line can be removed once all the platforms using
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* musb_core.c have been converted to use use clkdev.
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*/
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musb_plat.clock = "ick";
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musb_plat.board_data = board_data;
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musb_plat.power = board_data->power >> 1;
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musb_plat.mode = board_data->mode;
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musb_plat.extvbus = board_data->extvbus;
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if (platform_device_register(&musb_device) < 0)
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printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
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}
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#else
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void __init usb_musb_init(struct omap_musb_board_data *board_data)
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{
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}
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#endif /* CONFIG_USB_MUSB_SOC */
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