cc155c6f2c
For some platforms, it is inappropriate to register all PXA UARTs. In some cases, the UARTs may not be used, and in others we may want to avoid registering the UARTs to allow other drivers (eg, FICP) to make use of the UART. In addition, a while back there was a request to be able to pass platform data to the UART driver. This patch enables all of this by providing functions platforms can call to register each individual UART. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
221 lines
4.6 KiB
C
221 lines
4.6 KiB
C
/*
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* linux/arch/arm/mach-pxa/idp.c
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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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* Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
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*
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* 2001-09-13: Cliff Brake <cbrake@accelent.com>
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* Initial code
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*
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* 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
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* <http://www.vibren.com> <http://bec-systems.com>
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* Updated for 2.6 kernel
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*
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*/
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/irq.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/pxa25x.h>
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#include <mach/idp.h>
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#include <mach/pxafb.h>
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#include <mach/bitfield.h>
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#include <mach/mmc.h>
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#include "generic.h"
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#include "devices.h"
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/* TODO:
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* - add pxa2xx_audio_ops_t device structure
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* - Ethernet interrupt
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*/
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static unsigned long idp_pin_config[] __initdata = {
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/* LCD */
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GPIO58_LCD_LDD_0,
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GPIO59_LCD_LDD_1,
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GPIO60_LCD_LDD_2,
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GPIO61_LCD_LDD_3,
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GPIO62_LCD_LDD_4,
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GPIO63_LCD_LDD_5,
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GPIO64_LCD_LDD_6,
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GPIO65_LCD_LDD_7,
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GPIO66_LCD_LDD_8,
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GPIO67_LCD_LDD_9,
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GPIO68_LCD_LDD_10,
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GPIO69_LCD_LDD_11,
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GPIO70_LCD_LDD_12,
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GPIO71_LCD_LDD_13,
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GPIO72_LCD_LDD_14,
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GPIO73_LCD_LDD_15,
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GPIO74_LCD_FCLK,
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GPIO75_LCD_LCLK,
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GPIO76_LCD_PCLK,
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/* BTUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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GPIO44_BTUART_CTS,
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GPIO45_BTUART_RTS,
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/* STUART */
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GPIO46_STUART_RXD,
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GPIO47_STUART_TXD,
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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/* Ethernet */
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GPIO33_nCS_5, /* Ethernet CS */
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GPIO4_GPIO, /* Ethernet IRQ */
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};
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static struct resource smc91x_resources[] = {
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[0] = {
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.start = (IDP_ETH_PHYS + 0x300),
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.end = (IDP_ETH_PHYS + 0xfffff),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIO(4),
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.end = IRQ_GPIO(4),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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};
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static void idp_backlight_power(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<1);
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} else {
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IDP_CPLD_LCD &= ~(1<<1);
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}
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}
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static void idp_vlcd(int on)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<2);
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} else {
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IDP_CPLD_LCD &= ~(1<<2);
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}
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}
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static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
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{
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if (on) {
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IDP_CPLD_LCD |= (1<<0);
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} else {
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IDP_CPLD_LCD &= ~(1<<0);
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}
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/* call idp_vlcd for now as core driver does not support
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* both power and vlcd hooks. Note, this is not technically
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* the correct sequence, but seems to work. Disclaimer:
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* this may eventually damage the display.
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*/
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idp_vlcd(on);
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}
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static struct pxafb_mode_info sharp_lm8v31_mode = {
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.pixclock = 270000,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.hsync_len = 1,
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.left_margin = 3,
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.right_margin = 3,
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.vsync_len = 1,
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.upper_margin = 0,
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.lower_margin = 0,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info sharp_lm8v31 = {
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.modes = &sharp_lm8v31_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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.lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
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LCD_AC_BIAS_FREQ(255),
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.pxafb_backlight_power = &idp_backlight_power,
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.pxafb_lcd_power = &idp_lcd_power
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};
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static struct pxamci_platform_data idp_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
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.gpio_card_detect = -1,
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.gpio_card_ro = -1,
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.gpio_power = -1,
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};
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static void __init idp_init(void)
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{
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printk("idp_init()\n");
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pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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platform_device_register(&smc91x_device);
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//platform_device_register(&mst_audio_device);
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set_pxa_fb_info(&sharp_lm8v31);
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pxa_set_mci_info(&idp_mci_platform_data);
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}
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static struct map_desc idp_io_desc[] __initdata = {
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{
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.virtual = IDP_COREVOLT_VIRT,
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.pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
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.length = IDP_COREVOLT_SIZE,
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.type = MT_DEVICE
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}, {
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.virtual = IDP_CPLD_VIRT,
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.pfn = __phys_to_pfn(IDP_CPLD_PHYS),
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.length = IDP_CPLD_SIZE,
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.type = MT_DEVICE
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}
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};
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static void __init idp_map_io(void)
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{
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pxa_map_io();
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iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
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}
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MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
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/* Maintainer: Vibren Technologies */
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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 = idp_map_io,
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.init_irq = pxa25x_init_irq,
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.timer = &pxa_timer,
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.init_machine = idp_init,
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MACHINE_END
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