sh: kfr2r09 board support - LCDC panel
This patch adds support for the WQVGA LCD display used by the KFR2R09 board. The LCD module is a TX07D34VM0AAA made by Hitachi, and this module is made up by a R61517 chip together with a 240x400 pixel display. The screen is attached to the SuperH Mobile LCDC using a 18-bit SYS bus. The register settings used by the SYS panel setup code are based on an out-of-tree driver which apart from duplicating all LCDC driver code and writing to non-existing hardware registers also never was posted for upstream merge. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>hifive-unleashed-5.1
Magnus Damm
Paul Mundt
parent
ec56b66fed
commit
9f26e659d8
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@ -1 +1,2 @@
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obj-y := setup.o
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obj-$(CONFIG_FB_SH_MOBILE_LCDC) += lcd_wqvga.o
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@ -0,0 +1,332 @@
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/*
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* KFR2R09 LCD panel support
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*
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* Copyright (C) 2009 Magnus Damm
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*
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* Register settings based on the out-of-tree t33fb.c driver
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* Copyright (C) 2008 Lineo Solutions, Inc.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/gpio.h>
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#include <video/sh_mobile_lcdc.h>
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#include <mach/kfr2r09.h>
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#include <cpu/sh7724.h>
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/* The on-board LCD module is a Hitachi TX07D34VM0AAA. This module is made
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* up of a 240x400 LCD hooked up to a R61517 driver IC. The driver IC is
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* communicating with the main port of the LCDC using an 18-bit SYS interface.
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*
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* The device code for this LCD module is 0x01221517.
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*/
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static const unsigned char data_frame_if[] = {
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0x02, /* WEMODE: 1=cont, 0=one-shot */
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0x00, 0x00,
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0x00, /* EPF, DFM */
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0x02, /* RIM[1] : 1 (18bpp) */
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};
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static const unsigned char data_panel[] = {
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0x0b,
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0x63, /* 400 lines */
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0x04, 0x00, 0x00, 0x04, 0x11, 0x00, 0x00,
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};
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static const unsigned char data_timing[] = {
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0x00, 0x00, 0x13, 0x08, 0x08,
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};
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static const unsigned char data_timing_src[] = {
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0x11, 0x01, 0x00, 0x01,
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};
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static const unsigned char data_gamma[] = {
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0x01, 0x02, 0x08, 0x23, 0x03, 0x0c, 0x00, 0x06, 0x00, 0x00,
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0x01, 0x00, 0x0c, 0x23, 0x03, 0x08, 0x02, 0x06, 0x00, 0x00,
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};
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static const unsigned char data_power[] = {
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0x07, 0xc5, 0xdc, 0x02, 0x33, 0x0a,
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};
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static unsigned long read_reg(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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return so->read_data(sohandle);
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}
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static void write_reg(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so,
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int i, unsigned long v)
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{
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if (i)
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so->write_data(sohandle, v); /* PTH4/LCDRS High [param, 17:0] */
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else
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so->write_index(sohandle, v); /* PTH4/LCDRS Low [cmd, 7:0] */
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}
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static void write_data(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so,
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unsigned char const *data, int no_data)
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{
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int i;
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for (i = 0; i < no_data; i++)
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write_reg(sohandle, so, 1, data[i]);
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}
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static unsigned long read_device_code(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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unsigned long device_code;
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/* access protect OFF */
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write_reg(sohandle, so, 0, 0xb0);
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write_reg(sohandle, so, 1, 0x00);
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/* deep standby OFF */
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write_reg(sohandle, so, 0, 0xb1);
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write_reg(sohandle, so, 1, 0x00);
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/* device code command */
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write_reg(sohandle, so, 0, 0xbf);
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mdelay(50);
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/* dummy read */
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read_reg(sohandle, so);
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/* read device code */
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device_code = ((read_reg(sohandle, so) & 0xff) << 24);
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device_code |= ((read_reg(sohandle, so) & 0xff) << 16);
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device_code |= ((read_reg(sohandle, so) & 0xff) << 8);
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device_code |= (read_reg(sohandle, so) & 0xff);
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return device_code;
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}
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static void write_memory_start(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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write_reg(sohandle, so, 0, 0x2c);
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}
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static void clear_memory(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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int i;
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/* write start */
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write_memory_start(sohandle, so);
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/* paint it black */
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for (i = 0; i < (240 * 400); i++)
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write_reg(sohandle, so, 1, 0x00);
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}
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static void display_on(void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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/* access protect off */
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write_reg(sohandle, so, 0, 0xb0);
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write_reg(sohandle, so, 1, 0x00);
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/* exit deep standby mode */
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write_reg(sohandle, so, 0, 0xb1);
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write_reg(sohandle, so, 1, 0x00);
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/* frame memory I/F */
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write_reg(sohandle, so, 0, 0xb3);
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write_data(sohandle, so, data_frame_if, ARRAY_SIZE(data_frame_if));
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/* display mode and frame memory write mode */
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write_reg(sohandle, so, 0, 0xb4);
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write_reg(sohandle, so, 1, 0x00); /* DBI, internal clock */
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/* panel */
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write_reg(sohandle, so, 0, 0xc0);
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write_data(sohandle, so, data_panel, ARRAY_SIZE(data_panel));
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/* timing (normal) */
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write_reg(sohandle, so, 0, 0xc1);
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write_data(sohandle, so, data_timing, ARRAY_SIZE(data_timing));
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/* timing (partial) */
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write_reg(sohandle, so, 0, 0xc2);
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write_data(sohandle, so, data_timing, ARRAY_SIZE(data_timing));
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/* timing (idle) */
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write_reg(sohandle, so, 0, 0xc3);
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write_data(sohandle, so, data_timing, ARRAY_SIZE(data_timing));
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/* timing (source/VCOM/gate driving) */
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write_reg(sohandle, so, 0, 0xc4);
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write_data(sohandle, so, data_timing_src, ARRAY_SIZE(data_timing_src));
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/* gamma (red) */
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write_reg(sohandle, so, 0, 0xc8);
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write_data(sohandle, so, data_gamma, ARRAY_SIZE(data_gamma));
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/* gamma (green) */
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write_reg(sohandle, so, 0, 0xc9);
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write_data(sohandle, so, data_gamma, ARRAY_SIZE(data_gamma));
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/* gamma (blue) */
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write_reg(sohandle, so, 0, 0xca);
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write_data(sohandle, so, data_gamma, ARRAY_SIZE(data_gamma));
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/* power (common) */
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write_reg(sohandle, so, 0, 0xd0);
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write_data(sohandle, so, data_power, ARRAY_SIZE(data_power));
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/* VCOM */
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write_reg(sohandle, so, 0, 0xd1);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x0f);
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write_reg(sohandle, so, 1, 0x02);
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/* power (normal) */
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write_reg(sohandle, so, 0, 0xd2);
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write_reg(sohandle, so, 1, 0x63);
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write_reg(sohandle, so, 1, 0x24);
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/* power (partial) */
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write_reg(sohandle, so, 0, 0xd3);
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write_reg(sohandle, so, 1, 0x63);
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write_reg(sohandle, so, 1, 0x24);
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/* power (idle) */
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write_reg(sohandle, so, 0, 0xd4);
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write_reg(sohandle, so, 1, 0x63);
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write_reg(sohandle, so, 1, 0x24);
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write_reg(sohandle, so, 0, 0xd8);
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write_reg(sohandle, so, 1, 0x77);
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write_reg(sohandle, so, 1, 0x77);
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/* TE signal */
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write_reg(sohandle, so, 0, 0x35);
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write_reg(sohandle, so, 1, 0x00);
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/* TE signal line */
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write_reg(sohandle, so, 0, 0x44);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x00);
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/* column address */
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write_reg(sohandle, so, 0, 0x2a);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0xef);
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/* page address */
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write_reg(sohandle, so, 0, 0x2b);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x00);
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write_reg(sohandle, so, 1, 0x01);
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write_reg(sohandle, so, 1, 0x8f);
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/* exit sleep mode */
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write_reg(sohandle, so, 0, 0x11);
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mdelay(120);
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/* clear vram */
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clear_memory(sohandle, so);
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/* display ON */
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write_reg(sohandle, so, 0, 0x29);
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mdelay(1);
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write_memory_start(sohandle, so);
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}
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int kfr2r09_lcd_setup(void *board_data, void *sohandle,
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struct sh_mobile_lcdc_sys_bus_ops *so)
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{
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/* power on */
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gpio_set_value(GPIO_PTF4, 0); /* PROTECT/ -> L */
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gpio_set_value(GPIO_PTE4, 0); /* LCD_RST/ -> L */
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gpio_set_value(GPIO_PTF4, 1); /* PROTECT/ -> H */
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udelay(1100);
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gpio_set_value(GPIO_PTE4, 1); /* LCD_RST/ -> H */
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udelay(10);
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gpio_set_value(GPIO_PTF4, 0); /* PROTECT/ -> L */
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mdelay(20);
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if (read_device_code(sohandle, so) != 0x01221517)
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return -ENODEV;
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pr_info("KFR2R09 WQVGA LCD Module detected.\n");
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display_on(sohandle, so);
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return 0;
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}
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#define CTRL_CKSW 0x10
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#define CTRL_C10 0x20
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#define CTRL_CPSW 0x80
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#define MAIN_MLED4 0x40
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#define MAIN_MSW 0x80
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static int kfr2r09_lcd_backlight(int on)
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{
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struct i2c_adapter *a;
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struct i2c_msg msg;
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unsigned char buf[2];
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int ret;
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a = i2c_get_adapter(0);
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if (!a)
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return -ENODEV;
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buf[0] = 0x00;
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if (on)
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buf[1] = CTRL_CPSW | CTRL_C10 | CTRL_CKSW;
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else
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buf[1] = 0;
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msg.addr = 0x75;
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msg.buf = buf;
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msg.len = 2;
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msg.flags = 0;
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ret = i2c_transfer(a, &msg, 1);
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if (ret != 1)
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return -ENODEV;
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buf[0] = 0x01;
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if (on)
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buf[1] = MAIN_MSW | MAIN_MLED4 | 0x0c;
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else
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buf[1] = 0;
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msg.addr = 0x75;
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msg.buf = buf;
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msg.len = 2;
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msg.flags = 0;
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ret = i2c_transfer(a, &msg, 1);
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if (ret != 1)
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return -ENODEV;
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return 0;
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}
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void kfr2r09_lcd_on(void *board_data)
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{
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kfr2r09_lcd_backlight(1);
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}
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void kfr2r09_lcd_off(void *board_data)
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{
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kfr2r09_lcd_backlight(0);
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}
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@ -15,11 +15,13 @@
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#include <linux/clk.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <video/sh_mobile_lcdc.h>
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#include <asm/clock.h>
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#include <asm/machvec.h>
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#include <asm/io.h>
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#include <asm/sh_keysc.h>
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#include <cpu/sh7724.h>
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#include <mach/kfr2r09.h>
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static struct mtd_partition kfr2r09_nor_flash_partitions[] =
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{
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@ -97,9 +99,70 @@ static struct platform_device kfr2r09_sh_keysc_device = {
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},
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};
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static struct sh_mobile_lcdc_info kfr2r09_sh_lcdc_info = {
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.clock_source = LCDC_CLK_BUS,
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.ch[0] = {
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.chan = LCDC_CHAN_MAINLCD,
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.bpp = 16,
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.interface_type = SYS18,
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.clock_divider = 6,
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.flags = LCDC_FLAGS_DWPOL,
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.lcd_cfg = {
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.name = "TX07D34VM0AAA",
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.xres = 240,
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.yres = 400,
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.left_margin = 0,
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.right_margin = 16,
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.hsync_len = 8,
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.upper_margin = 0,
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.lower_margin = 1,
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.vsync_len = 1,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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},
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.lcd_size_cfg = {
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.width = 35,
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.height = 58,
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},
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.board_cfg = {
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.setup_sys = kfr2r09_lcd_setup,
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.display_on = kfr2r09_lcd_on,
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.display_off = kfr2r09_lcd_off,
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},
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.sys_bus_cfg = {
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.ldmt2r = 0x07010904,
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.ldmt3r = 0x14012914,
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/* set 1s delay to encourage fsync() */
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.deferred_io_msec = 1000,
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},
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}
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};
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static struct resource kfr2r09_sh_lcdc_resources[] = {
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[0] = {
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.name = "LCDC",
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.start = 0xfe940000, /* P4-only space */
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.end = 0xfe941fff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = 106,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device kfr2r09_sh_lcdc_device = {
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.name = "sh_mobile_lcdc_fb",
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.num_resources = ARRAY_SIZE(kfr2r09_sh_lcdc_resources),
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.resource = kfr2r09_sh_lcdc_resources,
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.dev = {
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.platform_data = &kfr2r09_sh_lcdc_info,
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},
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};
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static struct platform_device *kfr2r09_devices[] __initdata = {
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&kfr2r09_nor_flash_device,
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&kfr2r09_sh_keysc_device,
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&kfr2r09_sh_lcdc_device,
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};
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#define BSC_CS0BCR 0xfec10004
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@ -128,6 +191,37 @@ static int __init kfr2r09_devices_setup(void)
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gpio_request(GPIO_FN_KEYIN4, NULL);
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gpio_request(GPIO_FN_KEYOUT5_IN5, NULL);
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/* setup LCDC pins for SYS panel */
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gpio_request(GPIO_FN_LCDD17, NULL);
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gpio_request(GPIO_FN_LCDD16, NULL);
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gpio_request(GPIO_FN_LCDD15, NULL);
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gpio_request(GPIO_FN_LCDD14, NULL);
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gpio_request(GPIO_FN_LCDD13, NULL);
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gpio_request(GPIO_FN_LCDD12, NULL);
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gpio_request(GPIO_FN_LCDD11, NULL);
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gpio_request(GPIO_FN_LCDD10, NULL);
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gpio_request(GPIO_FN_LCDD9, NULL);
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gpio_request(GPIO_FN_LCDD8, NULL);
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gpio_request(GPIO_FN_LCDD7, NULL);
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gpio_request(GPIO_FN_LCDD6, NULL);
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gpio_request(GPIO_FN_LCDD5, NULL);
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gpio_request(GPIO_FN_LCDD4, NULL);
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gpio_request(GPIO_FN_LCDD3, NULL);
|
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gpio_request(GPIO_FN_LCDD2, NULL);
|
||||
gpio_request(GPIO_FN_LCDD1, NULL);
|
||||
gpio_request(GPIO_FN_LCDD0, NULL);
|
||||
gpio_request(GPIO_FN_LCDRS, NULL); /* LCD_RS */
|
||||
gpio_request(GPIO_FN_LCDCS, NULL); /* LCD_CS/ */
|
||||
gpio_request(GPIO_FN_LCDRD, NULL); /* LCD_RD/ */
|
||||
gpio_request(GPIO_FN_LCDWR, NULL); /* LCD_WR/ */
|
||||
gpio_request(GPIO_FN_LCDVSYN, NULL); /* LCD_VSYNC */
|
||||
gpio_request(GPIO_PTE4, NULL); /* LCD_RST/ */
|
||||
gpio_direction_output(GPIO_PTE4, 1);
|
||||
gpio_request(GPIO_PTF4, NULL); /* PROTECT/ */
|
||||
gpio_direction_output(GPIO_PTF4, 1);
|
||||
gpio_request(GPIO_PTU0, NULL); /* LEDSTDBY/ */
|
||||
gpio_direction_output(GPIO_PTU0, 1);
|
||||
|
||||
return platform_add_devices(kfr2r09_devices,
|
||||
ARRAY_SIZE(kfr2r09_devices));
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,21 @@
|
|||
#ifndef __ASM_SH_KFR2R09_H
|
||||
#define __ASM_SH_KFR2R09_H
|
||||
|
||||
#include <video/sh_mobile_lcdc.h>
|
||||
|
||||
#ifdef CONFIG_FB_SH_MOBILE_LCDC
|
||||
void kfr2r09_lcd_on(void *board_data);
|
||||
void kfr2r09_lcd_off(void *board_data);
|
||||
int kfr2r09_lcd_setup(void *board_data, void *sys_ops_handle,
|
||||
struct sh_mobile_lcdc_sys_bus_ops *sys_ops);
|
||||
#else
|
||||
static inline void kfr2r09_lcd_on(void *board_data) {}
|
||||
static inline void kfr2r09_lcd_off(void *board_data) {}
|
||||
static inline int kfr2r09_lcd_setup(void *board_data, void *sys_ops_handle,
|
||||
struct sh_mobile_lcdc_sys_bus_ops *sys_ops)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASM_SH_KFR2R09_H */
|
||||
Loading…
Reference in New Issue