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/* e800_lcd.c
*
* This file contains the definitions for the LCD timings and functions
* to control the LCD power / frontlighting via the w100fb driver.
*
* (c) 2005 Ian Molton <spyro@f2s.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/fb.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <asm/mach-types.h>
#include <video/w100fb.h>
static struct w100_gen_regs e800_lcd_regs = {
.lcd_format = 0x00008003,
.lcdd_cntl1 = 0x02a00000,
.lcdd_cntl2 = 0x0003ffff,
.genlcd_cntl1 = 0x000ff2a3,
.genlcd_cntl2 = 0x000002a3,
.genlcd_cntl3 = 0x000102aa,
};
static struct w100_mode e800_lcd_mode[2] = {
[0] = {
.xres = 480,
.yres = 640,
.left_margin = 52,
.right_margin = 148,
.upper_margin = 2,
.lower_margin = 6,
.crtc_ss = 0x80350034,
.crtc_ls = 0x802b0026,
.crtc_gs = 0x80160016,
.crtc_vpos_gs = 0x00020003,
.crtc_rev = 0x0040001d,
.crtc_dclk = 0xe0000000,
.crtc_gclk = 0x82a50049,
.crtc_goe = 0x80ee001c,
.crtc_ps1_active = 0x00000000,
.pll_freq = 128,
.pixclk_divider = 4,
.pixclk_divider_rotated = 6,
.pixclk_src = CLK_SRC_PLL,
.sysclk_divider = 0,
.sysclk_src = CLK_SRC_PLL,
},
[1] = {
.xres = 240,
.yres = 320,
.left_margin = 15,
.right_margin = 88,
.upper_margin = 0,
.lower_margin = 7,
.crtc_ss = 0xd010000f,
.crtc_ls = 0x80070003,
.crtc_gs = 0x80000000,
.crtc_vpos_gs = 0x01460147,
.crtc_rev = 0x00400003,
.crtc_dclk = 0xa1700030,
.crtc_gclk = 0x814b0008,
.crtc_goe = 0x80cc0015,
.crtc_ps1_active = 0x00000000,
.pll_freq = 100,
.pixclk_divider = 6, /* Wince uses 14 which gives a 7MHz pclk. */
.pixclk_divider_rotated = 6, /* we want a 14MHz one (much nicer to look at) */
.pixclk_src = CLK_SRC_PLL,
.sysclk_divider = 0,
.sysclk_src = CLK_SRC_PLL,
}
};
static struct w100_gpio_regs e800_w100_gpio_info = {
.init_data1 = 0xc13fc019,
.gpio_dir1 = 0x3e40df7f,
.gpio_oe1 = 0x003c3000,
.init_data2 = 0x00000000,
.gpio_dir2 = 0x00000000,
.gpio_oe2 = 0x00000000,
};
static struct w100_mem_info e800_w100_mem_info = {
.ext_cntl = 0x09640011,
.sdram_mode_reg = 0x00600021,
.ext_timing_cntl = 0x10001545,
.io_cntl = 0x7ddd7333,
.size = 0x1fffff,
};
static void e800_tg_change(struct w100fb_par *par)
{
unsigned long tmp;
tmp = w100fb_gpio_read(W100_GPIO_PORT_A);
if (par->mode->xres == 480)
tmp |= 0x100;
else
tmp &= ~0x100;
w100fb_gpio_write(W100_GPIO_PORT_A, tmp);
}
static struct w100_tg_info e800_tg_info = {
.change = e800_tg_change,
};
static struct w100fb_mach_info e800_fb_info = {
.modelist = e800_lcd_mode,
.num_modes = 2,
.regs = &e800_lcd_regs,
.gpio = &e800_w100_gpio_info,
.mem = &e800_w100_mem_info,
.tg = &e800_tg_info,
.xtal_freq = 16000000,
};
static struct resource e800_fb_resources[] = {
[0] = {
.start = 0x0c000000,
.end = 0x0cffffff,
.flags = IORESOURCE_MEM,
},
};
/* ----------------------- device declarations -------------------------- */
static struct platform_device e800_fb_device = {
.name = "w100fb",
.id = -1,
.dev = {
.platform_data = &e800_fb_info,
},
.num_resources = ARRAY_SIZE(e800_fb_resources),
.resource = e800_fb_resources,
};
static int e800_lcd_init(void)
{
if (!machine_is_e800())
return -ENODEV;
return platform_device_register(&e800_fb_device);
}
module_init(e800_lcd_init);
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("e800 lcd driver");
MODULE_LICENSE("GPLv2");
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