552 lines
14 KiB
C
552 lines
14 KiB
C
/*
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/serial_8250.h>
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#include <linux/gpio.h>
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#include <linux/i2c.h>
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#include <linux/irq.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/memory.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <mach/board-mx31ads.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx3.h>
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#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
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#include <linux/mfd/wm8350/audio.h>
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#include <linux/mfd/wm8350/core.h>
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#include <linux/mfd/wm8350/pmic.h>
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#endif
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#include "devices.h"
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/*!
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* @file mx31ads.c
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*
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* @brief This file contains the board-specific initialization routines.
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*
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* @ingroup System
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*/
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#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
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/*!
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* The serial port definition structure.
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*/
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static struct plat_serial8250_port serial_platform_data[] = {
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{
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.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA),
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.mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTA),
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.irq = EXPIO_INT_XUART_INTA,
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.uartclk = 14745600,
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.regshift = 0,
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.iotype = UPIO_MEM,
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
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}, {
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.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB),
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.mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTB),
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.irq = EXPIO_INT_XUART_INTB,
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.uartclk = 14745600,
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.regshift = 0,
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.iotype = UPIO_MEM,
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
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},
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{},
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};
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static struct platform_device serial_device = {
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.name = "serial8250",
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.id = 0,
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.dev = {
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.platform_data = serial_platform_data,
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},
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};
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static int __init mxc_init_extuart(void)
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{
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return platform_device_register(&serial_device);
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}
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#else
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static inline int mxc_init_extuart(void)
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{
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return 0;
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}
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#endif
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#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static unsigned int uart_pins[] = {
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MX31_PIN_CTS1__CTS1,
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MX31_PIN_RTS1__RTS1,
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MX31_PIN_TXD1__TXD1,
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MX31_PIN_RXD1__RXD1
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};
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static inline void mxc_init_imx_uart(void)
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{
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mxc_iomux_setup_multiple_pins(uart_pins, ARRAY_SIZE(uart_pins), "uart-0");
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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}
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#else /* !SERIAL_IMX */
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static inline void mxc_init_imx_uart(void)
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{
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}
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#endif /* !SERIAL_IMX */
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static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
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{
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u32 imr_val;
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u32 int_valid;
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u32 expio_irq;
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imr_val = __raw_readw(PBC_INTMASK_SET_REG);
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int_valid = __raw_readw(PBC_INTSTATUS_REG) & imr_val;
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expio_irq = MXC_EXP_IO_BASE;
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for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
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if ((int_valid & 1) == 0)
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continue;
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generic_handle_irq(expio_irq);
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}
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}
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/*
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* Disable an expio pin's interrupt by setting the bit in the imr.
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* @param irq an expio virtual irq number
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*/
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static void expio_mask_irq(u32 irq)
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{
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u32 expio = MXC_IRQ_TO_EXPIO(irq);
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/* mask the interrupt */
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__raw_writew(1 << expio, PBC_INTMASK_CLEAR_REG);
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__raw_readw(PBC_INTMASK_CLEAR_REG);
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}
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/*
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* Acknowledge an expanded io pin's interrupt by clearing the bit in the isr.
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* @param irq an expanded io virtual irq number
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*/
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static void expio_ack_irq(u32 irq)
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{
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u32 expio = MXC_IRQ_TO_EXPIO(irq);
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/* clear the interrupt status */
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__raw_writew(1 << expio, PBC_INTSTATUS_REG);
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}
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/*
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* Enable a expio pin's interrupt by clearing the bit in the imr.
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* @param irq a expio virtual irq number
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*/
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static void expio_unmask_irq(u32 irq)
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{
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u32 expio = MXC_IRQ_TO_EXPIO(irq);
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/* unmask the interrupt */
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__raw_writew(1 << expio, PBC_INTMASK_SET_REG);
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}
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static struct irq_chip expio_irq_chip = {
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.ack = expio_ack_irq,
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.mask = expio_mask_irq,
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.unmask = expio_unmask_irq,
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};
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static void __init mx31ads_init_expio(void)
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{
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int i;
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printk(KERN_INFO "MX31ADS EXPIO(CPLD) hardware\n");
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/*
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* Configure INT line as GPIO input
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*/
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mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_GPIO1_4, IOMUX_CONFIG_GPIO), "expio");
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/* disable the interrupt and clear the status */
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__raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG);
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__raw_writew(0xFFFF, PBC_INTSTATUS_REG);
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for (i = MXC_EXP_IO_BASE; i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES);
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i++) {
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set_irq_chip(i, &expio_irq_chip);
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set_irq_handler(i, handle_level_irq);
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set_irq_flags(i, IRQF_VALID);
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}
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set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH);
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set_irq_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
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}
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#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
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/* This section defines setup for the Wolfson Microelectronics
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* 1133-EV1 PMU/audio board. When other PMU boards are supported the
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* regulator definitions may be shared with them, but for now they can
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* only be used with this board so would generate warnings about
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* unused statics and some of the configuration is specific to this
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* module.
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*/
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/* CPU */
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static struct regulator_consumer_supply sw1a_consumers[] = {
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{
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.supply = "cpu_vcc",
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}
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};
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static struct regulator_init_data sw1a_data = {
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.constraints = {
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.name = "SW1A",
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.min_uV = 1275000,
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.max_uV = 1600000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_MODE,
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.valid_modes_mask = REGULATOR_MODE_NORMAL |
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REGULATOR_MODE_FAST,
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.state_mem = {
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.uV = 1400000,
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.mode = REGULATOR_MODE_NORMAL,
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.enabled = 1,
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},
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.initial_state = PM_SUSPEND_MEM,
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.always_on = 1,
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.boot_on = 1,
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},
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.num_consumer_supplies = ARRAY_SIZE(sw1a_consumers),
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.consumer_supplies = sw1a_consumers,
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};
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/* System IO - High */
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static struct regulator_init_data viohi_data = {
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.constraints = {
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.name = "VIOHO",
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.min_uV = 2800000,
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.max_uV = 2800000,
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.state_mem = {
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.uV = 2800000,
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.mode = REGULATOR_MODE_NORMAL,
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.enabled = 1,
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},
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.initial_state = PM_SUSPEND_MEM,
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.always_on = 1,
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.boot_on = 1,
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},
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};
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/* System IO - Low */
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static struct regulator_init_data violo_data = {
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.constraints = {
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.name = "VIOLO",
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.min_uV = 1800000,
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.max_uV = 1800000,
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.state_mem = {
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.uV = 1800000,
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.mode = REGULATOR_MODE_NORMAL,
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.enabled = 1,
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},
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.initial_state = PM_SUSPEND_MEM,
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.always_on = 1,
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.boot_on = 1,
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},
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};
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/* DDR RAM */
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static struct regulator_init_data sw2a_data = {
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.constraints = {
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.name = "SW2A",
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.min_uV = 1800000,
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.max_uV = 1800000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL,
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.state_mem = {
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.uV = 1800000,
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.mode = REGULATOR_MODE_NORMAL,
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.enabled = 1,
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},
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.state_disk = {
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.mode = REGULATOR_MODE_NORMAL,
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.enabled = 0,
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},
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.always_on = 1,
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.boot_on = 1,
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.initial_state = PM_SUSPEND_MEM,
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},
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};
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static struct regulator_init_data ldo1_data = {
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.constraints = {
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.name = "VCAM/VMMC1/VMMC2",
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.min_uV = 2800000,
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.max_uV = 2800000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL,
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.apply_uV = 1,
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},
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};
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static struct regulator_consumer_supply ldo2_consumers[] = {
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{
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.supply = "AVDD",
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},
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{
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.supply = "HPVDD",
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},
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};
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/* CODEC and SIM */
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static struct regulator_init_data ldo2_data = {
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.constraints = {
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.name = "VESIM/VSIM/AVDD",
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.min_uV = 3300000,
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.max_uV = 3300000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL,
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.apply_uV = 1,
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},
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.num_consumer_supplies = ARRAY_SIZE(ldo2_consumers),
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.consumer_supplies = ldo2_consumers,
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};
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/* General */
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static struct regulator_init_data vdig_data = {
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.constraints = {
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.name = "VDIG",
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.min_uV = 1500000,
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.max_uV = 1500000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL,
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.apply_uV = 1,
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.always_on = 1,
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.boot_on = 1,
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},
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};
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/* Tranceivers */
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static struct regulator_init_data ldo4_data = {
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.constraints = {
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.name = "VRF1/CVDD_2.775",
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.min_uV = 2500000,
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.max_uV = 2500000,
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.valid_modes_mask = REGULATOR_MODE_NORMAL,
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.apply_uV = 1,
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.always_on = 1,
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.boot_on = 1,
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},
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};
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static struct wm8350_led_platform_data wm8350_led_data = {
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.name = "wm8350:white",
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.default_trigger = "heartbeat",
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.max_uA = 27899,
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};
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static struct wm8350_audio_platform_data imx32ads_wm8350_setup = {
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.vmid_discharge_msecs = 1000,
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.drain_msecs = 30,
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.cap_discharge_msecs = 700,
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.vmid_charge_msecs = 700,
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.vmid_s_curve = WM8350_S_CURVE_SLOW,
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.dis_out4 = WM8350_DISCHARGE_SLOW,
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.dis_out3 = WM8350_DISCHARGE_SLOW,
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.dis_out2 = WM8350_DISCHARGE_SLOW,
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.dis_out1 = WM8350_DISCHARGE_SLOW,
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.vroi_out4 = WM8350_TIE_OFF_500R,
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.vroi_out3 = WM8350_TIE_OFF_500R,
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.vroi_out2 = WM8350_TIE_OFF_500R,
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.vroi_out1 = WM8350_TIE_OFF_500R,
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.vroi_enable = 0,
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.codec_current_on = WM8350_CODEC_ISEL_1_0,
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.codec_current_standby = WM8350_CODEC_ISEL_0_5,
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.codec_current_charge = WM8350_CODEC_ISEL_1_5,
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};
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static int mx31_wm8350_init(struct wm8350 *wm8350)
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{
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int i;
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wm8350_gpio_config(wm8350, 0, WM8350_GPIO_DIR_IN,
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WM8350_GPIO0_PWR_ON_IN, WM8350_GPIO_ACTIVE_LOW,
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WM8350_GPIO_PULL_UP, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_ON);
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wm8350_gpio_config(wm8350, 3, WM8350_GPIO_DIR_IN,
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WM8350_GPIO3_PWR_OFF_IN, WM8350_GPIO_ACTIVE_HIGH,
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WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_ON);
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wm8350_gpio_config(wm8350, 4, WM8350_GPIO_DIR_IN,
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WM8350_GPIO4_MR_IN, WM8350_GPIO_ACTIVE_HIGH,
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WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_OFF);
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wm8350_gpio_config(wm8350, 7, WM8350_GPIO_DIR_IN,
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WM8350_GPIO7_HIBERNATE_IN, WM8350_GPIO_ACTIVE_HIGH,
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WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_OFF);
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wm8350_gpio_config(wm8350, 6, WM8350_GPIO_DIR_OUT,
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WM8350_GPIO6_SDOUT_OUT, WM8350_GPIO_ACTIVE_HIGH,
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WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_OFF);
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wm8350_gpio_config(wm8350, 8, WM8350_GPIO_DIR_OUT,
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WM8350_GPIO8_VCC_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
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WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_OFF);
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wm8350_gpio_config(wm8350, 9, WM8350_GPIO_DIR_OUT,
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WM8350_GPIO9_BATT_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
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WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
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WM8350_GPIO_DEBOUNCE_OFF);
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/* Fix up for our own supplies. */
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for (i = 0; i < ARRAY_SIZE(ldo2_consumers); i++)
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ldo2_consumers[i].dev = wm8350->dev;
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wm8350_register_regulator(wm8350, WM8350_DCDC_1, &sw1a_data);
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wm8350_register_regulator(wm8350, WM8350_DCDC_3, &viohi_data);
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wm8350_register_regulator(wm8350, WM8350_DCDC_4, &violo_data);
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wm8350_register_regulator(wm8350, WM8350_DCDC_6, &sw2a_data);
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wm8350_register_regulator(wm8350, WM8350_LDO_1, &ldo1_data);
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wm8350_register_regulator(wm8350, WM8350_LDO_2, &ldo2_data);
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wm8350_register_regulator(wm8350, WM8350_LDO_3, &vdig_data);
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wm8350_register_regulator(wm8350, WM8350_LDO_4, &ldo4_data);
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/* LEDs */
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wm8350_dcdc_set_slot(wm8350, WM8350_DCDC_5, 1, 1,
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WM8350_DC5_ERRACT_SHUTDOWN_CONV);
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wm8350_isink_set_flash(wm8350, WM8350_ISINK_A,
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WM8350_ISINK_FLASH_DISABLE,
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WM8350_ISINK_FLASH_TRIG_BIT,
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WM8350_ISINK_FLASH_DUR_32MS,
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WM8350_ISINK_FLASH_ON_INSTANT,
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WM8350_ISINK_FLASH_OFF_INSTANT,
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WM8350_ISINK_FLASH_MODE_EN);
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wm8350_dcdc25_set_mode(wm8350, WM8350_DCDC_5,
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WM8350_ISINK_MODE_BOOST,
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WM8350_ISINK_ILIM_NORMAL,
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WM8350_DC5_RMP_20V,
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WM8350_DC5_FBSRC_ISINKA);
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wm8350_register_led(wm8350, 0, WM8350_DCDC_5, WM8350_ISINK_A,
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&wm8350_led_data);
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wm8350->codec.platform_data = &imx32ads_wm8350_setup;
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regulator_has_full_constraints();
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return 0;
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}
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static struct wm8350_platform_data __initdata mx31_wm8350_pdata = {
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.init = mx31_wm8350_init,
|
|
};
|
|
#endif
|
|
|
|
#if defined(CONFIG_I2C_IMX) || defined(CONFIG_I2C_IMX_MODULE)
|
|
static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = {
|
|
#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
|
|
{
|
|
I2C_BOARD_INFO("wm8350", 0x1a),
|
|
.platform_data = &mx31_wm8350_pdata,
|
|
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
|
|
},
|
|
#endif
|
|
};
|
|
|
|
static void mxc_init_i2c(void)
|
|
{
|
|
i2c_register_board_info(1, mx31ads_i2c1_devices,
|
|
ARRAY_SIZE(mx31ads_i2c1_devices));
|
|
|
|
mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_ALT1));
|
|
mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_ALT1));
|
|
|
|
mxc_register_device(&mxc_i2c_device1, NULL);
|
|
}
|
|
#else
|
|
static void mxc_init_i2c(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/*!
|
|
* This structure defines static mappings for the i.MX31ADS board.
|
|
*/
|
|
static struct map_desc mx31ads_io_desc[] __initdata = {
|
|
{
|
|
.virtual = MX31_CS4_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
|
|
.length = MX31_CS4_SIZE / 2,
|
|
.type = MT_DEVICE
|
|
},
|
|
};
|
|
|
|
/*!
|
|
* Set up static virtual mappings.
|
|
*/
|
|
static void __init mx31ads_map_io(void)
|
|
{
|
|
mx31_map_io();
|
|
iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc));
|
|
}
|
|
|
|
static void __init mx31ads_init_irq(void)
|
|
{
|
|
mx31_init_irq();
|
|
mx31ads_init_expio();
|
|
}
|
|
|
|
/*!
|
|
* Board specific initialization.
|
|
*/
|
|
static void __init mxc_board_init(void)
|
|
{
|
|
mxc_init_extuart();
|
|
mxc_init_imx_uart();
|
|
mxc_init_i2c();
|
|
}
|
|
|
|
static void __init mx31ads_timer_init(void)
|
|
{
|
|
mx31_clocks_init(26000000);
|
|
}
|
|
|
|
static struct sys_timer mx31ads_timer = {
|
|
.init = mx31ads_timer_init,
|
|
};
|
|
|
|
/*
|
|
* The following uses standard kernel macros defined in arch.h in order to
|
|
* initialize __mach_desc_MX31ADS data structure.
|
|
*/
|
|
MACHINE_START(MX31ADS, "Freescale MX31ADS")
|
|
/* Maintainer: Freescale Semiconductor, Inc. */
|
|
.phys_io = MX31_AIPS1_BASE_ADDR,
|
|
.io_pg_offst = ((MX31_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
|
|
.boot_params = PHYS_OFFSET + 0x100,
|
|
.map_io = mx31ads_map_io,
|
|
.init_irq = mx31ads_init_irq,
|
|
.init_machine = mxc_board_init,
|
|
.timer = &mx31ads_timer,
|
|
MACHINE_END
|