![Tony Lindgren](/assets/img/avatar_default.png)
Based on earlier discussions[1] we attempted to find a suitable
location for the omap DMA header in commit 2b6c4e73
(ARM: OMAP:
DMA: Move plat/dma.h to plat-omap/dma-omap.h) until the conversion
to dmaengine is complete.
Unfortunately that was before I was able to try to test compile
of the ARM multiplatform builds for omap2+, and the end result
was not very good.
So I'm creating yet another all over the place patch to cut the
last dependency for building omap2+ for ARM multiplatform. After
this, we have finally removed the driver dependencies to the
arch/arm code, except for few drivers that are being worked on.
The other option was to make the <plat-omap/dma-omap.h> path
to work, but we'd have to add some new header directory to for
multiplatform builds.
Or we would have to manually include arch/arm/plat-omap/include
again from arch/arm/Makefile for omap2+.
Neither of these alternatives sound appealing as they will
likely lead addition of various other headers exposed to the
drivers, which we want to avoid for the multiplatform kernels.
Since we already have a minimal include/linux/omap-dma.h,
let's just use that instead and add a note to it to not
use the custom omap DMA functions any longer where possible.
Note that converting omap DMA to dmaengine depends on
dmaengine supporting automatically incrementing the FIFO
address at the device end, and converting all the remaining
legacy drivers. So it's going to be few more merge windows.
[1] https://patchwork.kernel.org/patch/1519591/#
cc: Russell King <linux@arm.linux.org.uk>
cc: Kevin Hilman <khilman@ti.com>
cc: "BenoƮt Cousson" <b-cousson@ti.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: "David S. Miller" <davem@davemloft.net>
cc: Vinod Koul <vinod.koul@intel.com>
cc: Dan Williams <djbw@fb.com>
cc: Mauro Carvalho Chehab <mchehab@infradead.org>
cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Kyungmin Park <kyungmin.park@samsung.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
cc: Hans Verkuil <hans.verkuil@cisco.com>
cc: Vaibhav Hiremath <hvaibhav@ti.com>
cc: Lokesh Vutla <lokeshvutla@ti.com>
cc: Rusty Russell <rusty@rustcorp.com.au>
cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
cc: Afzal Mohammed <afzal@ti.com>
cc: linux-crypto@vger.kernel.org
cc: linux-media@vger.kernel.org
cc: linux-mtd@lists.infradead.org
cc: linux-usb@vger.kernel.org
cc: linux-fbdev@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
336 lines
7.9 KiB
C
336 lines
7.9 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-palmz71.c
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*
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* Modified from board-generic.c
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*
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* Support for the Palm Zire71 PDA.
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*
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* Original version : Laurent Gonzalez
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*
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* Modified for zire71 : Marek Vasut
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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/delay.h>
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#include <linux/gpio.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/notifier.h>
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#include <linux/clk.h>
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#include <linux/irq.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/omapfb.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/platform_data/omap1_bl.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/mach/map.h>
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#include <mach/flash.h>
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#include <mach/mux.h>
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#include <linux/omap-dma.h>
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#include <mach/tc.h>
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#include <mach/irda.h>
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#include <linux/platform_data/keypad-omap.h>
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#include <mach/hardware.h>
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#include <mach/usb.h>
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#include "common.h"
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#include "dma.h"
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#define PALMZ71_USBDETECT_GPIO 0
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#define PALMZ71_PENIRQ_GPIO 6
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#define PALMZ71_MMC_WP_GPIO 8
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#define PALMZ71_HDQ_GPIO 11
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#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1)
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#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2)
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#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3)
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#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4)
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static const unsigned int palmz71_keymap[] = {
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KEY(0, 0, KEY_F1),
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KEY(1, 0, KEY_F2),
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KEY(2, 0, KEY_F3),
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KEY(3, 0, KEY_F4),
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KEY(4, 0, KEY_POWER),
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KEY(0, 1, KEY_LEFT),
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KEY(1, 1, KEY_DOWN),
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KEY(2, 1, KEY_UP),
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KEY(3, 1, KEY_RIGHT),
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KEY(4, 1, KEY_ENTER),
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KEY(0, 2, KEY_CAMERA),
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};
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static const struct matrix_keymap_data palmz71_keymap_data = {
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.keymap = palmz71_keymap,
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.keymap_size = ARRAY_SIZE(palmz71_keymap),
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};
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static struct omap_kp_platform_data palmz71_kp_data = {
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.rows = 8,
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.cols = 8,
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.keymap_data = &palmz71_keymap_data,
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.rep = true,
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.delay = 80,
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};
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static struct resource palmz71_kp_resources[] = {
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[0] = {
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.start = INT_KEYBOARD,
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.end = INT_KEYBOARD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device palmz71_kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_kp_data,
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},
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.num_resources = ARRAY_SIZE(palmz71_kp_resources),
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.resource = palmz71_kp_resources,
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};
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static struct mtd_partition palmz71_rom_partitions[] = {
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/* PalmOS "Small ROM", contains the bootloader and the debugger */
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{
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.name = "smallrom",
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.offset = 0,
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.size = 0xa000,
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.mask_flags = MTD_WRITEABLE,
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},
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/* PalmOS "Big ROM", a filesystem with all the OS code and data */
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{
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.name = "bigrom",
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.offset = SZ_128K,
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/*
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* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
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* 0x7b0000 bytes in the English-only ("enUS") version.
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*/
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.size = 0x7b0000,
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.mask_flags = MTD_WRITEABLE,
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},
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};
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static struct physmap_flash_data palmz71_rom_data = {
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.width = 2,
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.set_vpp = omap1_set_vpp,
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.parts = palmz71_rom_partitions,
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.nr_parts = ARRAY_SIZE(palmz71_rom_partitions),
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};
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static struct resource palmz71_rom_resource = {
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.start = OMAP_CS0_PHYS,
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.end = OMAP_CS0_PHYS + SZ_8M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device palmz71_rom_device = {
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.name = "physmap-flash",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_rom_data,
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},
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.num_resources = 1,
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.resource = &palmz71_rom_resource,
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};
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static struct platform_device palmz71_lcd_device = {
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.name = "lcd_palmz71",
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.id = -1,
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};
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static struct omap_irda_config palmz71_irda_config = {
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.transceiver_cap = IR_SIRMODE,
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.rx_channel = OMAP_DMA_UART3_RX,
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.tx_channel = OMAP_DMA_UART3_TX,
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.dest_start = UART3_THR,
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.src_start = UART3_RHR,
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.tx_trigger = 0,
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.rx_trigger = 0,
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};
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static struct resource palmz71_irda_resources[] = {
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[0] = {
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.start = INT_UART3,
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.end = INT_UART3,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device palmz71_irda_device = {
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.name = "omapirda",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_irda_config,
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},
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.num_resources = ARRAY_SIZE(palmz71_irda_resources),
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.resource = palmz71_irda_resources,
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};
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static struct platform_device palmz71_spi_device = {
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.name = "spi_palmz71",
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.id = -1,
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};
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static struct omap_backlight_config palmz71_backlight_config = {
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.default_intensity = 0xa0,
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};
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static struct platform_device palmz71_backlight_device = {
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.name = "omap-bl",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_backlight_config,
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},
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};
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static struct platform_device *devices[] __initdata = {
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&palmz71_rom_device,
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&palmz71_kp_device,
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&palmz71_lcd_device,
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&palmz71_irda_device,
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&palmz71_spi_device,
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&palmz71_backlight_device,
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};
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static int
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palmz71_get_pendown_state(void)
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{
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return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
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}
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static const struct ads7846_platform_data palmz71_ts_info = {
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.model = 7846,
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.vref_delay_usecs = 100, /* internal, no capacitor */
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.x_plate_ohms = 419,
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.y_plate_ohms = 486,
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.get_pendown_state = palmz71_get_pendown_state,
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};
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static struct spi_board_info __initdata palmz71_boardinfo[] = { {
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/* MicroWire (bus 2) CS0 has an ads7846e */
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.modalias = "ads7846",
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.platform_data = &palmz71_ts_info,
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.max_speed_hz = 120000 /* max sample rate at 3V */
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* 26 /* command + data + overhead */,
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.bus_num = 2,
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.chip_select = 0,
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} };
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static struct omap_usb_config palmz71_usb_config __initdata = {
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.register_dev = 1, /* Mini-B only receptacle */
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.hmc_mode = 0,
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.pins[0] = 2,
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};
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static struct omap_lcd_config palmz71_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static irqreturn_t
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palmz71_powercable(int irq, void *dev_id)
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{
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if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
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printk(KERN_INFO "PM: Power cable connected\n");
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irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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IRQ_TYPE_EDGE_FALLING);
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} else {
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printk(KERN_INFO "PM: Power cable disconnected\n");
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irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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IRQ_TYPE_EDGE_RISING);
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}
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return IRQ_HANDLED;
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}
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static void __init
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omap_mpu_wdt_mode(int mode)
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{
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if (mode)
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omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
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else {
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omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
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omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
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}
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}
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static void __init
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palmz71_gpio_setup(int early)
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{
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if (early) {
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/* Only set GPIO1 so we have a working serial */
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gpio_direction_output(1, 1);
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} else {
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/* Set MMC/SD host WP pin as input */
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if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
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printk(KERN_ERR "Could not reserve WP GPIO!\n");
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return;
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}
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gpio_direction_input(PALMZ71_MMC_WP_GPIO);
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/* Monitor the Power-cable-connected signal */
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if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
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printk(KERN_ERR
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"Could not reserve cable signal GPIO!\n");
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return;
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}
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gpio_direction_input(PALMZ71_USBDETECT_GPIO);
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if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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palmz71_powercable, 0, "palmz71-cable", NULL))
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printk(KERN_ERR
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"IRQ request for power cable failed!\n");
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palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
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}
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}
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static void __init
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omap_palmz71_init(void)
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{
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/* mux pins for uarts */
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omap_cfg_reg(UART1_TX);
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omap_cfg_reg(UART1_RTS);
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omap_cfg_reg(UART2_TX);
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omap_cfg_reg(UART2_RTS);
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omap_cfg_reg(UART3_TX);
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omap_cfg_reg(UART3_RX);
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palmz71_gpio_setup(1);
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omap_mpu_wdt_mode(0);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
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spi_register_board_info(palmz71_boardinfo,
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ARRAY_SIZE(palmz71_boardinfo));
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omap1_usb_init(&palmz71_usb_config);
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omap_serial_init();
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omap_register_i2c_bus(1, 100, NULL, 0);
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palmz71_gpio_setup(0);
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omapfb_set_lcd_config(&palmz71_lcd_config);
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}
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MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
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.atag_offset = 0x100,
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.map_io = omap15xx_map_io,
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.init_early = omap1_init_early,
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.init_irq = omap1_init_irq,
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.init_machine = omap_palmz71_init,
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.init_late = omap1_init_late,
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.timer = &omap1_timer,
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.restart = omap1_restart,
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MACHINE_END
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