diff options
Diffstat (limited to 'arch/sh/boards/renesas/migor/lcd_qvga.c')
-rw-r--r-- | arch/sh/boards/renesas/migor/lcd_qvga.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/arch/sh/boards/renesas/migor/lcd_qvga.c b/arch/sh/boards/renesas/migor/lcd_qvga.c deleted file mode 100644 index 6e96095..0000000 --- a/arch/sh/boards/renesas/migor/lcd_qvga.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Support for SuperH MigoR Quarter VGA LCD Panel - * - * Copyright (C) 2008 Magnus Damm - * - * Based on lcd_powertip.c from Kenati Technologies Pvt Ltd. - * Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.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/delay.h> -#include <linux/err.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <asm/sh_mobile_lcdc.h> -#include <asm/migor.h> - -/* LCD Module is a PH240320T according to board schematics. This module - * is made up of a 240x320 LCD hooked up to a R61505U (or HX8347-A01?) - * Driver IC. This IC is connected to the SH7722 built-in LCDC using a - * SYS-80 interface configured in 16 bit mode. - * - * Index 0: "Device Code Read" returns 0x1505. - */ - -static void reset_lcd_module(void) -{ - ctrl_outb(ctrl_inb(PORT_PHDR) & ~0x04, PORT_PHDR); - mdelay(2); - ctrl_outb(ctrl_inb(PORT_PHDR) | 0x04, PORT_PHDR); - mdelay(1); -} - -/* DB0-DB7 are connected to D1-D8, and DB8-DB15 to D10-D17 */ - -static unsigned long adjust_reg18(unsigned short data) -{ - unsigned long tmp1, tmp2; - - tmp1 = (data<<1 | 0x00000001) & 0x000001FF; - tmp2 = (data<<2 | 0x00000200) & 0x0003FE00; - return tmp1 | tmp2; -} - -static void write_reg(void *sys_ops_handle, - struct sh_mobile_lcdc_sys_bus_ops *sys_ops, - unsigned short reg, unsigned short data) -{ - sys_ops->write_index(sys_ops_handle, adjust_reg18(reg << 8 | data)); -} - -static void write_reg16(void *sys_ops_handle, - struct sh_mobile_lcdc_sys_bus_ops *sys_ops, - unsigned short reg, unsigned short data) -{ - sys_ops->write_index(sys_ops_handle, adjust_reg18(reg)); - sys_ops->write_data(sys_ops_handle, adjust_reg18(data)); -} - -static unsigned long read_reg16(void *sys_ops_handle, - struct sh_mobile_lcdc_sys_bus_ops *sys_ops, - unsigned short reg) -{ - unsigned long data; - - sys_ops->write_index(sys_ops_handle, adjust_reg18(reg)); - data = sys_ops->read_data(sys_ops_handle); - return ((data >> 1) & 0xff) | ((data >> 2) & 0xff00); -} - -static void migor_lcd_qvga_seq(void *sys_ops_handle, - struct sh_mobile_lcdc_sys_bus_ops *sys_ops, - unsigned short const *data, int no_data) -{ - int i; - - for (i = 0; i < no_data; i += 2) - write_reg16(sys_ops_handle, sys_ops, data[i], data[i + 1]); -} - -static const unsigned short sync_data[] = { - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, -}; - -static const unsigned short magic0_data[] = { - 0x0060, 0x2700, 0x0008, 0x0808, 0x0090, 0x001A, 0x0007, 0x0001, - 0x0017, 0x0001, 0x0019, 0x0000, 0x0010, 0x17B0, 0x0011, 0x0116, - 0x0012, 0x0198, 0x0013, 0x1400, 0x0029, 0x000C, 0x0012, 0x01B8, -}; - -static const unsigned short magic1_data[] = { - 0x0030, 0x0307, 0x0031, 0x0303, 0x0032, 0x0603, 0x0033, 0x0202, - 0x0034, 0x0202, 0x0035, 0x0202, 0x0036, 0x1F1F, 0x0037, 0x0303, - 0x0038, 0x0303, 0x0039, 0x0603, 0x003A, 0x0202, 0x003B, 0x0102, - 0x003C, 0x0204, 0x003D, 0x0000, 0x0001, 0x0100, 0x0002, 0x0300, - 0x0003, 0x5028, 0x0020, 0x00ef, 0x0021, 0x0000, 0x0004, 0x0000, - 0x0009, 0x0000, 0x000A, 0x0008, 0x000C, 0x0000, 0x000D, 0x0000, - 0x0015, 0x8000, -}; - -static const unsigned short magic2_data[] = { - 0x0061, 0x0001, 0x0092, 0x0100, 0x0093, 0x0001, 0x0007, 0x0021, -}; - -static const unsigned short magic3_data[] = { - 0x0010, 0x16B0, 0x0011, 0x0111, 0x0007, 0x0061, -}; - -int migor_lcd_qvga_setup(void *board_data, void *sohandle, - struct sh_mobile_lcdc_sys_bus_ops *so) -{ - unsigned long xres = 320; - unsigned long yres = 240; - int k; - - reset_lcd_module(); - migor_lcd_qvga_seq(sohandle, so, sync_data, ARRAY_SIZE(sync_data)); - - if (read_reg16(sohandle, so, 0) != 0x1505) - return -ENODEV; - - pr_info("Migo-R QVGA LCD Module detected.\n"); - - migor_lcd_qvga_seq(sohandle, so, sync_data, ARRAY_SIZE(sync_data)); - write_reg16(sohandle, so, 0x00A4, 0x0001); - mdelay(10); - - migor_lcd_qvga_seq(sohandle, so, magic0_data, ARRAY_SIZE(magic0_data)); - mdelay(100); - - migor_lcd_qvga_seq(sohandle, so, magic1_data, ARRAY_SIZE(magic1_data)); - write_reg16(sohandle, so, 0x0050, 0xef - (yres - 1)); - write_reg16(sohandle, so, 0x0051, 0x00ef); - write_reg16(sohandle, so, 0x0052, 0x0000); - write_reg16(sohandle, so, 0x0053, xres - 1); - - migor_lcd_qvga_seq(sohandle, so, magic2_data, ARRAY_SIZE(magic2_data)); - mdelay(10); - - migor_lcd_qvga_seq(sohandle, so, magic3_data, ARRAY_SIZE(magic3_data)); - mdelay(40); - - /* clear GRAM to avoid displaying garbage */ - - write_reg16(sohandle, so, 0x0020, 0x0000); /* horiz addr */ - write_reg16(sohandle, so, 0x0021, 0x0000); /* vert addr */ - - for (k = 0; k < (xres * 256); k++) /* yes, 256 words per line */ - write_reg16(sohandle, so, 0x0022, 0x0000); - - write_reg16(sohandle, so, 0x0020, 0x0000); /* reset horiz addr */ - write_reg16(sohandle, so, 0x0021, 0x0000); /* reset vert addr */ - write_reg16(sohandle, so, 0x0007, 0x0173); - mdelay(40); - - /* enable display */ - write_reg(sohandle, so, 0x00, 0x22); - mdelay(100); - return 0; -} |