mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-02-25 10:17:56 +02:00
1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
733 lines
17 KiB
C
733 lines
17 KiB
C
/*
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* arch/ubicom32/mach-ip7k/board-ip7500media.c
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* Board file for IP7500 media board.
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*
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* Supports the following configuration
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* CPU Module:
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* P/N 8007-0510 rev 1.0 NOPHY
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* P/N 8007-0511 rev 1.1 NOPHY
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* DIP Switch SW2 configuration:
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* POS 1: on = PCI enabled
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* POS 2: off = TTYX => PF12
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* POS 3: off = TTYY => PF15
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* POS 4: unused
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* Media Board:
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* P/N 8007-0610 rev 1.0
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*
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* LCD Adapter Board: (optional)
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* P/N 8007-0920 rev 2.0
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* P/N 8007-0921 rev 2.1
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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#include <linux/i2c/pca953x.h>
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#include <asm/board.h>
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#include <asm/machdep.h>
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#include <asm/ubicom32input_i2c.h>
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#include <asm/ubicom32bl.h>
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#include <asm/ubicom32lcdpower.h>
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#include <asm/vdc_tio.h>
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#include <asm/ubicom32sd.h>
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#include <asm/sd_tio.h>
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#include <asm/devtree.h>
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#include <asm/audio.h>
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#include <asm/ring_tio.h>
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/******************************************************************************
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* SD/IO Port F (Slot 1) platform data
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*/
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static struct resource ip7500media_portf_sd_resources[] = {
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/*
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* Send IRQ
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*/
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[0] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_IRQ,
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},
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/*
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* Receive IRQ
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*/
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[1] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_IRQ,
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},
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/*
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* Memory Mapped Registers
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*/
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[2] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_MEM,
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},
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};
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static struct ubicom32sd_card ip7500media_portf_sd_cards[] = {
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[0] = {
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.pin_wp = IP7500MEDIA_IO16,
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.wp_polarity = 1,
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.pin_pwr = IP7500MEDIA_IO20,
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.pin_cd = IP7500MEDIA_IO23,
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},
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[1] = {
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.pin_wp = IP7500MEDIA_IO17,
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.wp_polarity = 1,
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.pin_pwr = IP7500MEDIA_IO21,
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.pin_cd = IP7500MEDIA_IO24,
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},
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};
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static struct ubicom32sd_platform_data ip7500media_portf_sd_platform_data = {
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.ncards = 2,
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.cards = ip7500media_portf_sd_cards,
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};
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static struct platform_device ip7500media_portf_sd_device = {
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.name = "ubicom32sd",
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.id = 0,
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.resource = ip7500media_portf_sd_resources,
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.num_resources = ARRAY_SIZE(ip7500media_portf_sd_resources),
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.dev = {
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.platform_data = &ip7500media_portf_sd_platform_data,
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},
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};
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/*
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* ip7500media_portf_sd_init
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*/
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static void ip7500media_portf_sd_init(void)
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{
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/*
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* Check the device tree for the sd_tio
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*/
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struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
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if (!sd_node) {
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printk(KERN_INFO "PortF SDTIO not found\n");
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return;
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}
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/*
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* Fill in the resources and platform data from devtree information
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*/
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ip7500media_portf_sd_resources[0].start = sd_node->dn.sendirq;
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ip7500media_portf_sd_resources[1].start = sd_node->dn.recvirq;
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ip7500media_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
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ip7500media_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
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platform_device_register(&ip7500media_portf_sd_device);
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}
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/******************************************************************************
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* SD/IO Port B (Slot 2) platform data
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*/
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static struct resource ip7500media_portb_sd_resources[] = {
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/*
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* Send IRQ
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*/
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[0] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_IRQ,
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},
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/*
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* Receive IRQ
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*/
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[1] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_IRQ,
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},
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/*
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* Memory Mapped Registers
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*/
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[2] = {
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/*
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* The init routine will query the devtree and fill this in
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*/
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.flags = IORESOURCE_MEM,
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},
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};
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static struct ubicom32sd_card ip7500media_portb_sd_cards[] = {
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[0] = {
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.pin_wp = IP7500MEDIA_IO19,
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.wp_polarity = 1,
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.pin_pwr = IP7500MEDIA_IO22,
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.pin_cd = IP7500MEDIA_IO18,
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},
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};
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static struct ubicom32sd_platform_data ip7500media_portb_sd_platform_data = {
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.ncards = 1,
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.cards = ip7500media_portb_sd_cards,
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};
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static struct platform_device ip7500media_portb_sd_device = {
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.name = "ubicom32sd",
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.id = 1,
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.resource = ip7500media_portb_sd_resources,
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.num_resources = ARRAY_SIZE(ip7500media_portb_sd_resources),
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.dev = {
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.platform_data = &ip7500media_portb_sd_platform_data,
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},
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};
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/*
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* ip7500media_portb_sd_init
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*/
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static void ip7500media_portb_sd_init(void)
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{
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/*
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* Check the device tree for the sd_tio
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*/
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struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
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if (!sd_node) {
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printk(KERN_INFO "PortB SDTIO not found\n");
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return;
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}
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/*
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* Fill in the resources and platform data from devtree information
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*/
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ip7500media_portb_sd_resources[0].start = sd_node->dn.sendirq;
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ip7500media_portb_sd_resources[1].start = sd_node->dn.recvirq;
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ip7500media_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
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ip7500media_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
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platform_device_register(&ip7500media_portb_sd_device);
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}
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/*
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* ip7500media_u17_setup
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* Called by I2C to tell us that u17 is setup.
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*
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* This function is called by I2C to tell us that u17 has been setup. All
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* devices which rely on this chip being initialized (or even present) need to
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* be initialized in this function otherwise they may get initialized too early.
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*
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* Currently the only device depending on u17 is the SDIO
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*/
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static int __init ip7500media_u17_setup(struct i2c_client *client, unsigned gpio, unsigned ngpio, void *context)
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{
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/*
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* Initialize the Port F/Port B SD slots (only the enabled ports will init)
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*/
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ip7500media_portf_sd_init();
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ip7500media_portb_sd_init();
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return 0;
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}
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/******************************************************************************
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* LCD VGH on the board at PE6
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*/
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static struct ubicom32lcdpower_platform_data ip7500media_lcdpower_data = {
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.vgh_gpio = GPIO_RE_7,
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.vgh_polarity = true,
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};
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static struct platform_device ip7500media_lcdpower_device = {
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.name = "ubicom32lcdpower",
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.id = -1,
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.dev = {
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.platform_data = &ip7500media_lcdpower_data,
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},
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};
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/******************************************************************************
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* Backlight on the board PD0, hardware PWM
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*/
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static struct ubicom32bl_platform_data ip7500media_backlight_data = {
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.type = UBICOM32BL_TYPE_PWM,
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.pwm_channel = 2,
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.pwm_prescale = 15,
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.pwm_period = 60,
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.default_intensity = 0x80,
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};
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static struct platform_device ip7500media_backlight_device = {
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.name = "ubicom32bl",
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.id = -1,
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.dev = {
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.platform_data = &ip7500media_backlight_data,
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},
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};
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/******************************************************************************
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* Ubicom32Input on I2C, U15 MAX7310, address 0x18, 8 bits
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*/
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static struct ubicom32input_i2c_button ip7500media_ubicom32input_i2c_u15_buttons[] = {
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{
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.type = EV_KEY,
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.code = KEY_LEFT,
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.bit = 0,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_RIGHT,
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.bit = 1,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_UP,
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.bit = 2,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_DOWN,
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.bit = 3,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_ENTER,
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.bit = 4,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_MENU,
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.bit = 5,
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_ESC,
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.bit = 6,
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.active_low = 1,
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},
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};
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static struct ubicom32input_i2c_platform_data ip7500media_ubicom32input_i2c_u15_platform_data = {
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.buttons = ip7500media_ubicom32input_i2c_u15_buttons,
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.nbuttons = ARRAY_SIZE(ip7500media_ubicom32input_i2c_u15_buttons),
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.name = "Ubicom32 Input I2C U15",
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};
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/******************************************************************************
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* Additional GPIO chips
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*/
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static struct pca953x_platform_data ip7500media_gpio_u16_platform_data = {
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.gpio_base = IP7500MEDIA_U16_BASE,
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};
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static struct pca953x_platform_data ip7500media_gpio_u17_platform_data = {
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.gpio_base = IP7500MEDIA_U17_BASE,
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.setup = ip7500media_u17_setup,
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};
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static struct pca953x_platform_data ip7500media_gpio_u18_platform_data = {
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.gpio_base = IP7500MEDIA_U18_BASE,
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};
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/******************************************************************************
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* Touch controller present on LCD Adapter board
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*
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* Connected via I2C bus, interrupt on PD1
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*/
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#include <linux/i2c/tsc2007.h>
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/*
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* ip7500media_tsc2007_exit_platform_hw
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*/
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static void ip7500media_tsc2007_exit_platform_hw(void)
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{
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UBICOM32_IO_PORT(RD)->int_mask &= ~(1 << 11);
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UBICOM32_IO_PORT(RD)->ctl2 &= ~(0x03 << 16);
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gpio_free(GPIO_RD_1);
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}
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/*
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* ip7500media_tsc2007_init_platform_hw
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*/
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static int ip7500media_tsc2007_init_platform_hw(void)
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{
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int res = gpio_request(GPIO_RD_1, "TSC2007_IRQ");
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if (res) {
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return res;
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}
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UBICOM32_IO_PORT(RD)->function = 0;
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UBICOM32_IO_PORT(RD)->int_mask = (1 << 11);
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UBICOM32_IO_PORT(RD)->ctl2 &= ~(0x03 << 16);
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UBICOM32_IO_PORT(RD)->ctl2 |= (0x02 << 16);
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return 0;
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}
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/*
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* ip7500media_tsc2007_clear_penirq
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*/
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static void ip7500media_tsc2007_clear_penirq(void)
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{
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UBICOM32_IO_PORT(RD)->int_clr = (1 << 11);
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}
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/*
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* ip7500media_tsc2007_get_pendown_state
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*/
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static int ip7500media_tsc2007_get_pendown_state(void)
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{
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return !gpio_get_value(GPIO_RD_1);
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}
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static struct tsc2007_platform_data ip7500media_tsc2007_data = {
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.model = 2007,
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.x_plate_ohms = 350,
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.get_pendown_state = ip7500media_tsc2007_get_pendown_state,
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.init_platform_hw = ip7500media_tsc2007_init_platform_hw,
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.exit_platform_hw = ip7500media_tsc2007_exit_platform_hw,
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.clear_penirq = ip7500media_tsc2007_clear_penirq,
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};
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/******************************************************************************
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* Devices on the I2C bus
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*
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* BEWARE of changing the order of things in this array as we depend on
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* certain things to be in certain places.
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*/
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static struct i2c_board_info __initdata ip7500media_i2c_board_info[] = {
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/*
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* U6, CS4350 DAC, address 0x4B
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*/
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{
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.type = "cs4350",
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.addr = 0x4B,
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},
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/*
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* U14, S35390A RTC, address 0x30
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*/
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{
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.type = "s35390a",
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.addr = 0x30,
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},
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|
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/*
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* U15, MAX7310 IO expander, 8 bits, address 0x18
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* IO0: User I/O (J16-1) (Left) IO4: User I/O (J16-5) (Enter)
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* IO1: User I/O (J16-2) (Right) IO5: User I/O (J16-6) (Menu)
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* IO2: User I/O (J16-3) (Up) IO6: User I/O (J16-7) (Back)
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* IO3: User I/O (J16-4) (Down) IO7: User I/O (J16-8)
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*/
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{
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.type = "ubicom32in_max7310",
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.addr = 0x18,
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.platform_data = &ip7500media_ubicom32input_i2c_u15_platform_data,
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},
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/*
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* U16, MAX7310 IO expander, 8 bits, address 0x1C
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* IO8 : User I/O (J16-9) IO12: User I/O (J16-17)
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* IO9 : User I/O (J16-10) IO13: User I/O (J16-18)
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* IO10: User I/O (J16-15) IO14: User I/O (J16-19)
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* IO11: User I/O (J16-16) IO15: User I/O (J16-20)
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*/
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{
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.type = "max7310",
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.addr = 0x1C,
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.platform_data = &ip7500media_gpio_u16_platform_data,
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},
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|
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/*
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* U17, MAX7310 IO expander, 8 bits, address 0x1A
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* IO16: SDIO1A_WP IO20: SD1A_PWREN
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* IO17: SDIO1B_WP IO21: SD1B_PWREN
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* IO18: SDIO2_CD IO22: SD2_PWREN
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* IO19: SDIO2_WP IO23: SDIO1A_CD
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*
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*/
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{
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.type = "max7310",
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.addr = 0x1A,
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.platform_data = &ip7500media_gpio_u17_platform_data,
|
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},
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|
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/*
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* U18, MAX7310 IOB expander, 8 bits, address 0x1E
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* IO24: SDIO1B_CD IO28: User I/O TP6
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* IO25: User I/O TP9 IO29: User I/O TP5
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* IO26: User I/O TP8 IO30: User I/O TP4
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* IO27: User I/O TP7 IO31: User I/O TP3
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*/
|
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{
|
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.type = "max7310",
|
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.addr = 0x1E,
|
|
.platform_data = &ip7500media_gpio_u18_platform_data,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* Additional I2C devices to add when a LCD adapter board is present
|
|
*/
|
|
static struct i2c_board_info __initdata ip7500media_lcd_adapter_i2c_board_info[] = {
|
|
{
|
|
I2C_BOARD_INFO("tsc2007", 0x48),
|
|
.irq = PORT_OTHER_INT(RD),
|
|
.platform_data = &ip7500media_tsc2007_data,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* I2C bus on the board, SDA PE4, SCL PE5
|
|
*/
|
|
static struct i2c_gpio_platform_data ip7500media_i2c_data = {
|
|
.sda_pin = GPIO_RE_4,
|
|
.scl_pin = GPIO_RE_5,
|
|
.sda_is_open_drain = 0,
|
|
.scl_is_open_drain = 0,
|
|
.udelay = 50,
|
|
};
|
|
|
|
static struct platform_device ip7500media_i2c_device = {
|
|
.name = "i2c-gpio",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &ip7500media_i2c_data,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* Virtual Frame Buffer device for use with LCD Adapter
|
|
*/
|
|
static struct platform_device ip7500media_vfb_device = {
|
|
.name = "ubicom32vfb",
|
|
.id = -1,
|
|
};
|
|
|
|
/*
|
|
* vdc_override:
|
|
* 0: no override (auto-detect)
|
|
* 1: force vdc usage
|
|
* 2: force lcd adapter usage
|
|
*/
|
|
static int __initdata vdc_override = 0;
|
|
|
|
/*
|
|
* ip7500media_set_forcevdc
|
|
* Called when forcevdc is present on the kernel boot line
|
|
*/
|
|
static int __init ip7500media_set_forcevdc(char *str)
|
|
{
|
|
if (str[0] == '1') {
|
|
vdc_override = 1;
|
|
} else {
|
|
vdc_override = 2;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* ip7500media_video_init
|
|
* Called late to determine what kind of video we have on this board
|
|
*/
|
|
static int __init ip7500media_video_init(void)
|
|
{
|
|
struct i2c_adapter *adap;
|
|
struct i2c_msg msg[1];
|
|
unsigned char *data;
|
|
unsigned char checksum;
|
|
int err;
|
|
int i;
|
|
|
|
if (vdc_override == 1) {
|
|
printk(KERN_INFO "Force VDCTIO mode\n");
|
|
goto no_adapter;
|
|
}
|
|
if (vdc_override == 2) {
|
|
printk(KERN_INFO "Force LCD Adapter Board mode\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check to see if there is an EEPROM out there. If we see an
|
|
* EEPROM then we will assume a LCD Adapter Board (8007-092x)
|
|
* exists.
|
|
*/
|
|
data = kmalloc(256, GFP_KERNEL);
|
|
if (!data) {
|
|
printk(KERN_WARNING "%s: Failed to allocate memory\n", __FUNCTION__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
adap = i2c_get_adapter(0);
|
|
if (!adap) {
|
|
printk(KERN_WARNING "%s: Failed to get i2c adapter\n", __FUNCTION__);
|
|
kfree(data);
|
|
return -ENODEV;
|
|
}
|
|
data[0] = 0;
|
|
msg->addr = 0x50;
|
|
msg->flags = 0;
|
|
msg->len = 1;
|
|
msg->buf = data;
|
|
err = i2c_transfer(adap, msg, 1);
|
|
if (err < 0) {
|
|
goto no_adapter;
|
|
}
|
|
|
|
msg->addr = 0x50;
|
|
msg->flags = I2C_M_RD;
|
|
msg->len = 256;
|
|
msg->buf = data;
|
|
err = i2c_transfer(adap, msg, 1);
|
|
if (err < 0) {
|
|
goto no_adapter;
|
|
}
|
|
|
|
i2c_put_adapter(adap);
|
|
|
|
/*
|
|
* Verify the checksum
|
|
*/
|
|
checksum = 0xff;
|
|
for (i = 0; i < 255; i++) {
|
|
checksum ^= data[i];
|
|
}
|
|
if (checksum != data[255]) {
|
|
printk(KERN_WARNING "%s: Checksum mismatch\n", __FUNCTION__);
|
|
}
|
|
|
|
kfree(data);
|
|
|
|
/*
|
|
* Bring up VFB
|
|
*/
|
|
platform_device_register(&ip7500media_vfb_device);
|
|
|
|
/*
|
|
* Add the i2c devices on the LCD Adapter board. (We have to use i2c_new_device
|
|
* since it's late in the boot process.)
|
|
*/
|
|
printk(KERN_INFO "%s: registering LCD Adapter board i2c resources\n", __FUNCTION__);
|
|
for (i = 0; i < ARRAY_SIZE(ip7500media_lcd_adapter_i2c_board_info); i++) {
|
|
i2c_new_device(adap, &ip7500media_lcd_adapter_i2c_board_info[i]);
|
|
}
|
|
|
|
i2c_put_adapter(adap);
|
|
|
|
return 0;
|
|
|
|
/*
|
|
* No LCD Adapter board, bring up VDC
|
|
*/
|
|
no_adapter:
|
|
vdc_tio_init();
|
|
return 0;
|
|
}
|
|
late_initcall(ip7500media_video_init);
|
|
__setup("forcevdc=", ip7500media_set_forcevdc);
|
|
|
|
/*
|
|
* ip7500media_init
|
|
* Called to add the devices which we have on this board
|
|
*/
|
|
static int __init ip7500media_init(void)
|
|
{
|
|
struct platform_device *audio_dev;
|
|
int have_ethernet = (devtree_find_node("eth_lan") != 0);
|
|
|
|
board_init();
|
|
|
|
ubi_gpio_init();
|
|
|
|
#ifdef CONFIG_UIO_UBICOM32RING
|
|
ring_tio_init("decoder_ring");
|
|
#endif
|
|
|
|
/*
|
|
* Register all of the devices we have on this board
|
|
*/
|
|
printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
|
|
platform_device_register(&ip7500media_i2c_device);
|
|
platform_device_register(&ip7500media_backlight_device);
|
|
|
|
/*
|
|
* If ethernet doesn't exist then we can init the lcdpower
|
|
*/
|
|
if (!have_ethernet) {
|
|
platform_device_register(&ip7500media_lcdpower_device);
|
|
}
|
|
|
|
/*
|
|
* Allocate the audio drivers. SPDIF not supported on boards with ethernet.
|
|
*/
|
|
audio_dev = audio_device_alloc("snd-ubi32-cs4350", "audio", "audio-i2sout", 0);
|
|
if (audio_dev) {
|
|
ip7500media_i2c_board_info[0].platform_data = audio_dev;
|
|
}
|
|
|
|
if (!have_ethernet) {
|
|
struct platform_device *audio_dev2;
|
|
|
|
audio_dev2 = audio_device_alloc("snd-ubi32-generic", "audio", "audio-spdifout", 0);
|
|
if (audio_dev2) {
|
|
platform_device_register(audio_dev2);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Register all of the devices which sit on the I2C bus
|
|
*/
|
|
printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
|
|
i2c_register_board_info(0, ip7500media_i2c_board_info, ARRAY_SIZE(ip7500media_i2c_board_info));
|
|
|
|
/*
|
|
* We have to initialize the SDIO after the I2C IOB gets setup. SDIO is initialized in
|
|
* ip7500media_u17_setup
|
|
*/
|
|
|
|
printk("IP7500 Media Board\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(ip7500media_init);
|