360 lines
12 KiB
C
360 lines
12 KiB
C
/*
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* linux/arch/arm/mach-sa1100/jornada720.c
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*
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* HP Jornada720 init code
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*
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* Copyright (C) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
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* Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl>
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* Copyright (C) 2005 Michael Gernoth <michael@gernoth.net>
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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/init.h>
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#include <linux/kernel.h>
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#include <linux/tty.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/ioport.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <video/s1d13xxxfb.h>
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#include <asm/hardware.h>
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#include <asm/hardware/sa1111.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <asm/setup.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <asm/mach/serial_sa1100.h>
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#include "generic.h"
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/*
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* HP Documentation referred in this file:
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* http://www.jlime.com/downloads/development/docs/jornada7xx/jornada720.txt
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*/
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/* line 110 of HP's doc */
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#define TUCR_VAL 0x20000400
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/* memory space (line 52 of HP's doc) */
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#define SA1111REGSTART 0x40000000
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#define SA1111REGLEN 0x00001fff
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#define EPSONREGSTART 0x48000000
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#define EPSONREGLEN 0x00100000
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#define EPSONFBSTART 0x48200000
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/* 512kB framebuffer */
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#define EPSONFBLEN 512*1024
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static struct s1d13xxxfb_regval s1d13xxxfb_initregs[] = {
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/* line 344 of HP's doc */
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{0x0001,0x00}, // Miscellaneous Register
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{0x01FC,0x00}, // Display Mode Register
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{0x0004,0x00}, // General IO Pins Configuration Register 0
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{0x0005,0x00}, // General IO Pins Configuration Register 1
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{0x0008,0x00}, // General IO Pins Control Register 0
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{0x0009,0x00}, // General IO Pins Control Register 1
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{0x0010,0x01}, // Memory Clock Configuration Register
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{0x0014,0x11}, // LCD Pixel Clock Configuration Register
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{0x0018,0x01}, // CRT/TV Pixel Clock Configuration Register
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{0x001C,0x01}, // MediaPlug Clock Configuration Register
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{0x001E,0x01}, // CPU To Memory Wait State Select Register
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{0x0020,0x00}, // Memory Configuration Register
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{0x0021,0x45}, // DRAM Refresh Rate Register
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{0x002A,0x01}, // DRAM Timings Control Register 0
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{0x002B,0x03}, // DRAM Timings Control Register 1
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{0x0030,0x1c}, // Panel Type Register
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{0x0031,0x00}, // MOD Rate Register
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{0x0032,0x4F}, // LCD Horizontal Display Width Register
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{0x0034,0x07}, // LCD Horizontal Non-Display Period Register
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{0x0035,0x01}, // TFT FPLINE Start Position Register
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{0x0036,0x0B}, // TFT FPLINE Pulse Width Register
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{0x0038,0xEF}, // LCD Vertical Display Height Register 0
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{0x0039,0x00}, // LCD Vertical Display Height Register 1
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{0x003A,0x13}, // LCD Vertical Non-Display Period Register
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{0x003B,0x0B}, // TFT FPFRAME Start Position Register
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{0x003C,0x01}, // TFT FPFRAME Pulse Width Register
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{0x0040,0x05}, // LCD Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
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{0x0041,0x00}, // LCD Miscellaneous Register
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{0x0042,0x00}, // LCD Display Start Address Register 0
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{0x0043,0x00}, // LCD Display Start Address Register 1
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{0x0044,0x00}, // LCD Display Start Address Register 2
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{0x0046,0x80}, // LCD Memory Address Offset Register 0
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{0x0047,0x02}, // LCD Memory Address Offset Register 1
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{0x0048,0x00}, // LCD Pixel Panning Register
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{0x004A,0x00}, // LCD Display FIFO High Threshold Control Register
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{0x004B,0x00}, // LCD Display FIFO Low Threshold Control Register
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{0x0050,0x4F}, // CRT/TV Horizontal Display Width Register
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{0x0052,0x13}, // CRT/TV Horizontal Non-Display Period Register
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{0x0053,0x01}, // CRT/TV HRTC Start Position Register
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{0x0054,0x0B}, // CRT/TV HRTC Pulse Width Register
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{0x0056,0xDF}, // CRT/TV Vertical Display Height Register 0
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{0x0057,0x01}, // CRT/TV Vertical Display Height Register 1
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{0x0058,0x2B}, // CRT/TV Vertical Non-Display Period Register
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{0x0059,0x09}, // CRT/TV VRTC Start Position Register
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{0x005A,0x01}, // CRT/TV VRTC Pulse Width Register
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{0x005B,0x10}, // TV Output Control Register
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{0x0060,0x03}, // CRT/TV Display Mode Register (2:4bpp,3:8bpp,5:16bpp)
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{0x0062,0x00}, // CRT/TV Display Start Address Register 0
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{0x0063,0x00}, // CRT/TV Display Start Address Register 1
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{0x0064,0x00}, // CRT/TV Display Start Address Register 2
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{0x0066,0x40}, // CRT/TV Memory Address Offset Register 0
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{0x0067,0x01}, // CRT/TV Memory Address Offset Register 1
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{0x0068,0x00}, // CRT/TV Pixel Panning Register
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{0x006A,0x00}, // CRT/TV Display FIFO High Threshold Control Register
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{0x006B,0x00}, // CRT/TV Display FIFO Low Threshold Control Register
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{0x0070,0x00}, // LCD Ink/Cursor Control Register
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{0x0071,0x01}, // LCD Ink/Cursor Start Address Register
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{0x0072,0x00}, // LCD Cursor X Position Register 0
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{0x0073,0x00}, // LCD Cursor X Position Register 1
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{0x0074,0x00}, // LCD Cursor Y Position Register 0
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{0x0075,0x00}, // LCD Cursor Y Position Register 1
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{0x0076,0x00}, // LCD Ink/Cursor Blue Color 0 Register
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{0x0077,0x00}, // LCD Ink/Cursor Green Color 0 Register
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{0x0078,0x00}, // LCD Ink/Cursor Red Color 0 Register
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{0x007A,0x1F}, // LCD Ink/Cursor Blue Color 1 Register
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{0x007B,0x3F}, // LCD Ink/Cursor Green Color 1 Register
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{0x007C,0x1F}, // LCD Ink/Cursor Red Color 1 Register
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{0x007E,0x00}, // LCD Ink/Cursor FIFO Threshold Register
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{0x0080,0x00}, // CRT/TV Ink/Cursor Control Register
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{0x0081,0x01}, // CRT/TV Ink/Cursor Start Address Register
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{0x0082,0x00}, // CRT/TV Cursor X Position Register 0
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{0x0083,0x00}, // CRT/TV Cursor X Position Register 1
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{0x0084,0x00}, // CRT/TV Cursor Y Position Register 0
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{0x0085,0x00}, // CRT/TV Cursor Y Position Register 1
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{0x0086,0x00}, // CRT/TV Ink/Cursor Blue Color 0 Register
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{0x0087,0x00}, // CRT/TV Ink/Cursor Green Color 0 Register
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{0x0088,0x00}, // CRT/TV Ink/Cursor Red Color 0 Register
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{0x008A,0x1F}, // CRT/TV Ink/Cursor Blue Color 1 Register
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{0x008B,0x3F}, // CRT/TV Ink/Cursor Green Color 1 Register
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{0x008C,0x1F}, // CRT/TV Ink/Cursor Red Color 1 Register
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{0x008E,0x00}, // CRT/TV Ink/Cursor FIFO Threshold Register
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{0x0100,0x00}, // BitBlt Control Register 0
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{0x0101,0x00}, // BitBlt Control Register 1
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{0x0102,0x00}, // BitBlt ROP Code/Color Expansion Register
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{0x0103,0x00}, // BitBlt Operation Register
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{0x0104,0x00}, // BitBlt Source Start Address Register 0
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{0x0105,0x00}, // BitBlt Source Start Address Register 1
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{0x0106,0x00}, // BitBlt Source Start Address Register 2
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{0x0108,0x00}, // BitBlt Destination Start Address Register 0
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{0x0109,0x00}, // BitBlt Destination Start Address Register 1
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{0x010A,0x00}, // BitBlt Destination Start Address Register 2
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{0x010C,0x00}, // BitBlt Memory Address Offset Register 0
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{0x010D,0x00}, // BitBlt Memory Address Offset Register 1
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{0x0110,0x00}, // BitBlt Width Register 0
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{0x0111,0x00}, // BitBlt Width Register 1
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{0x0112,0x00}, // BitBlt Height Register 0
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{0x0113,0x00}, // BitBlt Height Register 1
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{0x0114,0x00}, // BitBlt Background Color Register 0
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{0x0115,0x00}, // BitBlt Background Color Register 1
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{0x0118,0x00}, // BitBlt Foreground Color Register 0
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{0x0119,0x00}, // BitBlt Foreground Color Register 1
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{0x01E0,0x00}, // Look-Up Table Mode Register
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{0x01E2,0x00}, // Look-Up Table Address Register
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/* not sure, wouldn't like to mess with the driver */
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{0x01E4,0x00}, // Look-Up Table Data Register
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/* jornada doc says 0x00, but I trust the driver */
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{0x01F0,0x10}, // Power Save Configuration Register
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{0x01F1,0x00}, // Power Save Status Register
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{0x01F4,0x00}, // CPU-to-Memory Access Watchdog Timer Register
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{0x01FC,0x01}, // Display Mode Register(0x01:LCD, 0x02:CRT, 0x03:LCD&CRT)
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};
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static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
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.initregs = s1d13xxxfb_initregs,
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.initregssize = ARRAY_SIZE(s1d13xxxfb_initregs),
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.platform_init_video = NULL
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};
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static struct resource s1d13xxxfb_resources[] = {
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[0] = {
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.start = EPSONFBSTART,
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.end = EPSONFBSTART + EPSONFBLEN,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = EPSONREGSTART,
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.end = EPSONREGSTART + EPSONREGLEN,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device s1d13xxxfb_device = {
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.name = S1D_DEVICENAME,
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.id = 0,
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.dev = {
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.platform_data = &s1d13xxxfb_data,
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},
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.num_resources = ARRAY_SIZE(s1d13xxxfb_resources),
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.resource = s1d13xxxfb_resources,
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};
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static struct resource sa1111_resources[] = {
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[0] = {
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.start = SA1111REGSTART,
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.end = SA1111REGSTART + SA1111REGLEN,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_GPIO1,
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.end = IRQ_GPIO1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 sa1111_dmamask = 0xffffffffUL;
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static struct platform_device sa1111_device = {
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.name = "sa1111",
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.id = 0,
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.dev = {
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.dma_mask = &sa1111_dmamask,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(sa1111_resources),
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.resource = sa1111_resources,
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};
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static struct platform_device jornada_ssp_device = {
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.name = "jornada_ssp",
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.id = -1,
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};
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static struct platform_device *devices[] __initdata = {
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&sa1111_device,
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#ifdef CONFIG_SA1100_JORNADA720_SSP
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&jornada_ssp_device,
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#endif
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&s1d13xxxfb_device,
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};
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static int __init jornada720_init(void)
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{
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int ret = -ENODEV;
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if (machine_is_jornada720()) {
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/* we want to use gpio20 as input to drive the clock of our uart 3 */
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GPDR |= GPIO_GPIO20; /* Clear gpio20 pin as input */
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TUCR = TUCR_VAL;
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GPSR = GPIO_GPIO20; /* start gpio20 pin */
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udelay(1);
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GPCR = GPIO_GPIO20; /* stop gpio20 */
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udelay(1);
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GPSR = GPIO_GPIO20; /* restart gpio20 */
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udelay(20); /* give it some time to restart */
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ret = platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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return ret;
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}
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arch_initcall(jornada720_init);
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static struct map_desc jornada720_io_desc[] __initdata = {
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{ /* Epson registers */
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.virtual = 0xf0000000,
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.pfn = __phys_to_pfn(EPSONREGSTART),
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.length = EPSONREGLEN,
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.type = MT_DEVICE
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}, { /* Epson frame buffer */
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.virtual = 0xf1000000,
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.pfn = __phys_to_pfn(EPSONFBSTART),
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.length = EPSONFBLEN,
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.type = MT_DEVICE
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}, { /* SA-1111 */
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.virtual = 0xf4000000,
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.pfn = __phys_to_pfn(SA1111REGSTART),
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.length = SA1111REGLEN,
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.type = MT_DEVICE
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}
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};
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static void __init jornada720_map_io(void)
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{
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sa1100_map_io();
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iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
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sa1100_register_uart(0, 3);
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sa1100_register_uart(1, 1);
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}
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static struct mtd_partition jornada720_partitions[] = {
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{
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.name = "JORNADA720 boot firmware",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "JORNADA720 kernel",
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.size = 0x000c0000,
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.offset = 0x00040000,
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}, {
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.name = "JORNADA720 params",
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.size = 0x00040000,
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.offset = 0x00100000,
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}, {
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.name = "JORNADA720 initrd",
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.size = 0x00100000,
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.offset = 0x00140000,
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}, {
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.name = "JORNADA720 root cramfs",
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.size = 0x00300000,
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.offset = 0x00240000,
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}, {
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.name = "JORNADA720 usr cramfs",
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.size = 0x00800000,
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.offset = 0x00540000,
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}, {
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.name = "JORNADA720 usr local",
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.size = 0, /* will expand to the end of the flash */
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.offset = 0x00d00000,
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}
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};
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static void jornada720_set_vpp(int vpp)
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{
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if (vpp)
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/* enabling flash write (line 470 of HP's doc) */
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PPSR |= PPC_LDD7;
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else
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/* disabling flash write (line 470 of HP's doc) */
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PPSR &= ~PPC_LDD7;
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PPDR |= PPC_LDD7;
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}
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static struct flash_platform_data jornada720_flash_data = {
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.map_name = "cfi_probe",
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.set_vpp = jornada720_set_vpp,
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.parts = jornada720_partitions,
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.nr_parts = ARRAY_SIZE(jornada720_partitions),
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};
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static struct resource jornada720_flash_resource = {
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.start = SA1100_CS0_PHYS,
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.end = SA1100_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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};
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static void __init jornada720_mach_init(void)
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{
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sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
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}
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MACHINE_START(JORNADA720, "HP Jornada 720")
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/* Maintainer: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> */
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.phys_io = 0x80000000,
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.io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
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.boot_params = 0xc0000100,
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.map_io = jornada720_map_io,
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.init_irq = sa1100_init_irq,
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.timer = &sa1100_timer,
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.init_machine = jornada720_mach_init,
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MACHINE_END
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