diff options
Diffstat (limited to 'arch/arm/mach-pxa/e740_lcd.c')
-rw-r--r-- | arch/arm/mach-pxa/e740_lcd.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/e740_lcd.c b/arch/arm/mach-pxa/e740_lcd.c new file mode 100644 index 000000000000..26bd599af178 --- /dev/null +++ b/arch/arm/mach-pxa/e740_lcd.c @@ -0,0 +1,123 @@ +/* e740_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> + +/* +**potential** shutdown routine - to be investigated +devmem2 0x0c010528 w 0xff3fff00 +devmem2 0x0c010190 w 0x7FFF8000 +devmem2 0x0c0101b0 w 0x00FF0000 +devmem2 0x0c01008c w 0x00000000 +devmem2 0x0c010080 w 0x000000bf +devmem2 0x0c010098 w 0x00000015 +devmem2 0x0c010088 w 0x4b000204 +devmem2 0x0c010098 w 0x0000001d +*/ + +static struct w100_gen_regs e740_lcd_regs = { + .lcd_format = 0x00008023, + .lcdd_cntl1 = 0x0f000000, + .lcdd_cntl2 = 0x0003ffff, + .genlcd_cntl1 = 0x00ffff03, + .genlcd_cntl2 = 0x003c0f03, + .genlcd_cntl3 = 0x000143aa, +}; + +static struct w100_mode e740_lcd_mode = { + .xres = 240, + .yres = 320, + .left_margin = 20, + .right_margin = 28, + .upper_margin = 9, + .lower_margin = 8, + .crtc_ss = 0x80140013, + .crtc_ls = 0x81150110, + .crtc_gs = 0x80050005, + .crtc_vpos_gs = 0x000a0009, + .crtc_rev = 0x0040010a, + .crtc_dclk = 0xa906000a, + .crtc_gclk = 0x80050108, + .crtc_goe = 0x80050108, + .pll_freq = 57, + .pixclk_divider = 4, + .pixclk_divider_rotated = 4, + .pixclk_src = CLK_SRC_XTAL, + .sysclk_divider = 1, + .sysclk_src = CLK_SRC_PLL, + .crtc_ps1_active = 0x41060010, +}; + + +static struct w100_gpio_regs e740_w100_gpio_info = { + .init_data1 = 0x21002103, + .gpio_dir1 = 0xffffdeff, + .gpio_oe1 = 0x03c00643, + .init_data2 = 0x003f003f, + .gpio_dir2 = 0xffffffff, + .gpio_oe2 = 0x000000ff, +}; + +static struct w100fb_mach_info e740_fb_info = { + .modelist = &e740_lcd_mode, + .num_modes = 1, + .regs = &e740_lcd_regs, + .gpio = &e740_w100_gpio_info, + .xtal_freq = 14318000, + .xtal_dbl = 1, +}; + +static struct resource e740_fb_resources[] = { + [0] = { + .start = 0x0c000000, + .end = 0x0cffffff, + .flags = IORESOURCE_MEM, + }, +}; + +/* ----------------------- device declarations -------------------------- */ + + +static struct platform_device e740_fb_device = { + .name = "w100fb", + .id = -1, + .dev = { + .platform_data = &e740_fb_info, + }, + .num_resources = ARRAY_SIZE(e740_fb_resources), + .resource = e740_fb_resources, +}; + +static int e740_lcd_init(void) +{ + int ret; + + if (!machine_is_e740()) + return -ENODEV; + + return platform_device_register(&e740_fb_device); +} + +module_init(e740_lcd_init); + +MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); +MODULE_DESCRIPTION("e740 lcd driver"); +MODULE_LICENSE("GPLv2"); |