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>
170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
/*
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* linux/arch/arm/mach-pxa/himalaya.c
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*
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* Hardware definitions for the HTC Himalaya
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*
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* Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
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*
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* Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
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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/kernel.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/fb.h>
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#include <linux/platform_device.h>
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#include <video/w100fb.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/mfp-pxa25x.h>
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#include <mach/hardware.h>
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#include "generic.h"
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/* ---------------------- Himalaya LCD definitions -------------------- */
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static struct w100_gen_regs himalaya_lcd_regs = {
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.lcd_format = 0x00000003,
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.lcdd_cntl1 = 0x00000000,
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.lcdd_cntl2 = 0x0003ffff,
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.genlcd_cntl1 = 0x00fff003,
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.genlcd_cntl2 = 0x00000003,
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.genlcd_cntl3 = 0x000102aa,
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};
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static struct w100_mode himalaya4_lcd_mode = {
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.xres = 240,
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.yres = 320,
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.left_margin = 0,
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.right_margin = 31,
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.upper_margin = 15,
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.lower_margin = 0,
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.crtc_ss = 0x80150014,
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.crtc_ls = 0xa0fb00f7,
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.crtc_gs = 0xc0080007,
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.crtc_vpos_gs = 0x00080007,
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.crtc_rev = 0x0000000a,
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.crtc_dclk = 0x81700030,
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.crtc_gclk = 0x8015010f,
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.crtc_goe = 0x00000000,
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.pll_freq = 80,
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.pixclk_divider = 15,
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.pixclk_divider_rotated = 15,
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.pixclk_src = CLK_SRC_PLL,
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.sysclk_divider = 0,
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.sysclk_src = CLK_SRC_PLL,
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};
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static struct w100_mode himalaya6_lcd_mode = {
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.xres = 240,
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.yres = 320,
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.left_margin = 9,
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.right_margin = 8,
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.upper_margin = 5,
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.lower_margin = 4,
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.crtc_ss = 0x80150014,
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.crtc_ls = 0xa0fb00f7,
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.crtc_gs = 0xc0080007,
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.crtc_vpos_gs = 0x00080007,
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.crtc_rev = 0x0000000a,
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.crtc_dclk = 0xa1700030,
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.crtc_gclk = 0x8015010f,
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.crtc_goe = 0x00000000,
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.pll_freq = 95,
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.pixclk_divider = 0xb,
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.pixclk_divider_rotated = 4,
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.pixclk_src = CLK_SRC_PLL,
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.sysclk_divider = 1,
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.sysclk_src = CLK_SRC_PLL,
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};
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static struct w100_gpio_regs himalaya_w100_gpio_info = {
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.init_data1 = 0xffff0000, /* GPIO_DATA */
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.gpio_dir1 = 0x00000000, /* GPIO_CNTL1 */
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.gpio_oe1 = 0x003c0000, /* GPIO_CNTL2 */
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.init_data2 = 0x00000000, /* GPIO_DATA2 */
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.gpio_dir2 = 0x00000000, /* GPIO_CNTL3 */
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.gpio_oe2 = 0x00000000, /* GPIO_CNTL4 */
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};
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static struct w100fb_mach_info himalaya_fb_info = {
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.num_modes = 1,
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.regs = &himalaya_lcd_regs,
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.gpio = &himalaya_w100_gpio_info,
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.xtal_freq = 16000000,
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};
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static struct resource himalaya_fb_resources[] = {
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[0] = {
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.start = 0x08000000,
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.end = 0x08ffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device himalaya_fb_device = {
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.name = "w100fb",
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.id = -1,
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.dev = {
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.platform_data = &himalaya_fb_info,
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},
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.num_resources = ARRAY_SIZE(himalaya_fb_resources),
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.resource = himalaya_fb_resources,
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};
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/* ----------------------------------------------------------------------- */
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static struct platform_device *devices[] __initdata = {
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&himalaya_fb_device,
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};
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static void __init himalaya_lcd_init(void)
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{
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int himalaya_boardid;
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himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
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printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
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himalaya_boardid);
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switch (himalaya_boardid) {
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case 0x4:
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himalaya_fb_info.modelist = &himalaya4_lcd_mode;
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break;
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case 0x6:
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himalaya_fb_info.modelist = &himalaya6_lcd_mode;
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break;
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default:
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printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
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himalaya_boardid);
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himalaya_fb_info.modelist = &himalaya4_lcd_mode;
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}
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}
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static void __init himalaya_init(void)
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{
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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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himalaya_lcd_init();
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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MACHINE_START(HIMALAYA, "HTC Himalaya")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.boot_params = 0xa0000100,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.init_machine = himalaya_init,
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.timer = &pxa_timer,
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MACHINE_END
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