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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
/* e740_lcd.c
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*
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* This file contains the definitions for the LCD timings and functions
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* to control the LCD power / frontlighting via the w100fb driver.
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*
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* (c) 2005 Ian Molton <spyro@f2s.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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*/
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/fb.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <asm/mach-types.h>
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#include <video/w100fb.h>
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/*
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**potential** shutdown routine - to be investigated
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devmem2 0x0c010528 w 0xff3fff00
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devmem2 0x0c010190 w 0x7FFF8000
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devmem2 0x0c0101b0 w 0x00FF0000
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devmem2 0x0c01008c w 0x00000000
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devmem2 0x0c010080 w 0x000000bf
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devmem2 0x0c010098 w 0x00000015
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devmem2 0x0c010088 w 0x4b000204
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devmem2 0x0c010098 w 0x0000001d
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*/
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static struct w100_gen_regs e740_lcd_regs = {
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.lcd_format = 0x00008023,
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.lcdd_cntl1 = 0x0f000000,
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.lcdd_cntl2 = 0x0003ffff,
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.genlcd_cntl1 = 0x00ffff03,
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.genlcd_cntl2 = 0x003c0f03,
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.genlcd_cntl3 = 0x000143aa,
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};
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static struct w100_mode e740_lcd_mode = {
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.xres = 240,
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.yres = 320,
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.left_margin = 20,
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.right_margin = 28,
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.upper_margin = 9,
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.lower_margin = 8,
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.crtc_ss = 0x80140013,
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.crtc_ls = 0x81150110,
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.crtc_gs = 0x80050005,
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.crtc_vpos_gs = 0x000a0009,
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.crtc_rev = 0x0040010a,
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.crtc_dclk = 0xa906000a,
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.crtc_gclk = 0x80050108,
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.crtc_goe = 0x80050108,
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.pll_freq = 57,
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.pixclk_divider = 4,
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.pixclk_divider_rotated = 4,
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.pixclk_src = CLK_SRC_XTAL,
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.sysclk_divider = 1,
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.sysclk_src = CLK_SRC_PLL,
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.crtc_ps1_active = 0x41060010,
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};
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static struct w100_gpio_regs e740_w100_gpio_info = {
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.init_data1 = 0x21002103,
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.gpio_dir1 = 0xffffdeff,
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.gpio_oe1 = 0x03c00643,
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.init_data2 = 0x003f003f,
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.gpio_dir2 = 0xffffffff,
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.gpio_oe2 = 0x000000ff,
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};
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static struct w100fb_mach_info e740_fb_info = {
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.modelist = &e740_lcd_mode,
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.num_modes = 1,
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.regs = &e740_lcd_regs,
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.gpio = &e740_w100_gpio_info,
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.xtal_freq = 14318000,
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.xtal_dbl = 1,
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};
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static struct resource e740_fb_resources[] = {
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[0] = {
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.start = 0x0c000000,
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.end = 0x0cffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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/* ----------------------- device declarations -------------------------- */
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static struct platform_device e740_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 = &e740_fb_info,
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},
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.num_resources = ARRAY_SIZE(e740_fb_resources),
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.resource = e740_fb_resources,
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};
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static int e740_lcd_init(void)
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{
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int ret;
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if (!machine_is_e740())
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return -ENODEV;
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return platform_device_register(&e740_fb_device);
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}
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module_init(e740_lcd_init);
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MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
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MODULE_DESCRIPTION("e740 lcd driver");
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MODULE_LICENSE("GPLv2");
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