328 строки
7.5 KiB
C
328 строки
7.5 KiB
C
/*
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* Copyright (C) 2008-2009 ST-Ericsson
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*
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* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
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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/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/pl022.h>
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#include <linux/spi/spi.h>
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#include <linux/mfd/ab8500.h>
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#include <linux/input/matrix_keypad.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <plat/pincfg.h>
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#include <plat/i2c.h>
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#include <plat/ske.h>
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#include <mach/hardware.h>
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#include <mach/setup.h>
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#include <mach/devices.h>
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#include <mach/irqs.h>
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#include "pins-db8500.h"
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#include "board-mop500.h"
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static pin_cfg_t mop500_pins[] = {
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/* SSP0 */
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GPIO143_SSP0_CLK,
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GPIO144_SSP0_FRM,
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GPIO145_SSP0_RXD,
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GPIO146_SSP0_TXD,
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/* I2C */
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GPIO147_I2C0_SCL,
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GPIO148_I2C0_SDA,
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GPIO16_I2C1_SCL,
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GPIO17_I2C1_SDA,
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GPIO10_I2C2_SDA,
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GPIO11_I2C2_SCL,
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GPIO229_I2C3_SDA,
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GPIO230_I2C3_SCL,
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/* SKE keypad */
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GPIO153_KP_I7,
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GPIO154_KP_I6,
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GPIO155_KP_I5,
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GPIO156_KP_I4,
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GPIO157_KP_O7,
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GPIO158_KP_O6,
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GPIO159_KP_O5,
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GPIO160_KP_O4,
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GPIO161_KP_I3,
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GPIO162_KP_I2,
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GPIO163_KP_I1,
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GPIO164_KP_I0,
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GPIO165_KP_O3,
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GPIO166_KP_O2,
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GPIO167_KP_O1,
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GPIO168_KP_O0,
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};
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static void ab4500_spi_cs_control(u32 command)
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{
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/* set the FRM signal, which is CS - TODO */
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}
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struct pl022_config_chip ab4500_chip_info = {
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.com_mode = INTERRUPT_TRANSFER,
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.iface = SSP_INTERFACE_MOTOROLA_SPI,
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/* we can act as master only */
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.hierarchy = SSP_MASTER,
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.slave_tx_disable = 0,
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.rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
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.tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
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.cs_control = ab4500_spi_cs_control,
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};
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static struct ab8500_platform_data ab8500_platdata = {
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.irq_base = MOP500_AB8500_IRQ_BASE,
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};
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static struct resource ab8500_resources[] = {
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[0] = {
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.start = IRQ_AB8500,
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.end = IRQ_AB8500,
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.flags = IORESOURCE_IRQ
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}
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};
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struct platform_device ab8500_device = {
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.name = "ab8500-i2c",
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.id = 0,
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.dev = {
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.platform_data = &ab8500_platdata,
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},
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.num_resources = 1,
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.resource = ab8500_resources,
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};
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static struct spi_board_info ab8500_spi_devices[] = {
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{
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.modalias = "ab8500-spi",
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.controller_data = &ab4500_chip_info,
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.platform_data = &ab8500_platdata,
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.max_speed_hz = 12000000,
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.bus_num = 0,
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.chip_select = 0,
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.mode = SPI_MODE_3,
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.irq = IRQ_DB8500_AB8500,
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},
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};
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static struct pl022_ssp_controller ssp0_platform_data = {
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.bus_id = 0,
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/* pl022 not yet supports dma */
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.enable_dma = 0,
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/* on this platform, gpio 31,142,144,214 &
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* 224 are connected as chip selects
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*/
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.num_chipselect = 5,
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};
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#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
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static struct nmk_i2c_controller u8500_i2c##id##_data = { \
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/* \
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* slave data setup time, which is \
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* 250 ns,100ns,10ns which is 14,6,2 \
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* respectively for a 48 Mhz \
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* i2c clock \
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*/ \
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.slsu = _slsu, \
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/* Tx FIFO threshold */ \
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.tft = _tft, \
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/* Rx FIFO threshold */ \
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.rft = _rft, \
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/* std. mode operation */ \
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.clk_freq = clk, \
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.sm = _sm, \
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}
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/*
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* The board uses 4 i2c controllers, initialize all of
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* them with slave data setup time of 250 ns,
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* Tx & Rx FIFO threshold values as 1 and standard
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* mode of operation
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*/
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U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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static struct amba_device *amba_devs[] __initdata = {
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&ux500_uart0_device,
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&ux500_uart1_device,
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&ux500_uart2_device,
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&u8500_ssp0_device,
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};
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static const unsigned int ux500_keymap[] = {
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KEY(2, 5, KEY_END),
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KEY(4, 1, KEY_POWER),
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KEY(3, 5, KEY_VOLUMEDOWN),
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KEY(1, 3, KEY_3),
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KEY(5, 2, KEY_RIGHT),
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KEY(5, 0, KEY_9),
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KEY(0, 5, KEY_MENU),
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KEY(7, 6, KEY_ENTER),
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KEY(4, 5, KEY_0),
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KEY(6, 7, KEY_2),
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KEY(3, 4, KEY_UP),
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KEY(3, 3, KEY_DOWN),
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KEY(6, 4, KEY_SEND),
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KEY(6, 2, KEY_BACK),
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KEY(4, 2, KEY_VOLUMEUP),
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KEY(5, 5, KEY_1),
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KEY(4, 3, KEY_LEFT),
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KEY(3, 2, KEY_7),
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};
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static const struct matrix_keymap_data ux500_keymap_data = {
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.keymap = ux500_keymap,
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.keymap_size = ARRAY_SIZE(ux500_keymap),
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};
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/*
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* Nomadik SKE keypad
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*/
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#define ROW_PIN_I0 164
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#define ROW_PIN_I1 163
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#define ROW_PIN_I2 162
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#define ROW_PIN_I3 161
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#define ROW_PIN_I4 156
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#define ROW_PIN_I5 155
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#define ROW_PIN_I6 154
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#define ROW_PIN_I7 153
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#define COL_PIN_O0 168
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#define COL_PIN_O1 167
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#define COL_PIN_O2 166
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#define COL_PIN_O3 165
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#define COL_PIN_O4 160
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#define COL_PIN_O5 159
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#define COL_PIN_O6 158
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#define COL_PIN_O7 157
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#define SKE_KPD_MAX_ROWS 8
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#define SKE_KPD_MAX_COLS 8
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static int ske_kp_rows[] = {
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ROW_PIN_I0, ROW_PIN_I1, ROW_PIN_I2, ROW_PIN_I3,
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ROW_PIN_I4, ROW_PIN_I5, ROW_PIN_I6, ROW_PIN_I7,
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};
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/*
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* ske_set_gpio_row: request and set gpio rows
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*/
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static int ske_set_gpio_row(int gpio)
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{
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int ret;
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ret = gpio_request(gpio, "ske-kp");
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if (ret < 0) {
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pr_err("ske_set_gpio_row: gpio request failed\n");
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return ret;
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}
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ret = gpio_direction_output(gpio, 1);
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if (ret < 0) {
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pr_err("ske_set_gpio_row: gpio direction failed\n");
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gpio_free(gpio);
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}
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return ret;
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}
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/*
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* ske_kp_init - enable the gpio configuration
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*/
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static int ske_kp_init(void)
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{
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int ret, i;
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for (i = 0; i < SKE_KPD_MAX_ROWS; i++) {
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ret = ske_set_gpio_row(ske_kp_rows[i]);
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if (ret < 0) {
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pr_err("ske_kp_init: failed init\n");
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return ret;
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}
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}
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return 0;
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}
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static struct ske_keypad_platform_data ske_keypad_board = {
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.init = ske_kp_init,
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.keymap_data = &ux500_keymap_data,
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.no_autorepeat = true,
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.krow = SKE_KPD_MAX_ROWS, /* 8x8 matrix */
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.kcol = SKE_KPD_MAX_COLS,
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.debounce_ms = 40, /* in millsecs */
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};
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/* add any platform devices here - TODO */
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static struct platform_device *platform_devs[] __initdata = {
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&u8500_i2c0_device,
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&ux500_i2c1_device,
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&ux500_i2c2_device,
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&ux500_i2c3_device,
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&ux500_ske_keypad_device,
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};
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static void __init u8500_init_machine(void)
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{
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int i;
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u8500_init_devices();
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nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));
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u8500_i2c0_device.dev.platform_data = &u8500_i2c0_data;
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ux500_i2c1_device.dev.platform_data = &u8500_i2c1_data;
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ux500_i2c2_device.dev.platform_data = &u8500_i2c2_data;
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ux500_i2c3_device.dev.platform_data = &u8500_i2c3_data;
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ux500_ske_keypad_device.dev.platform_data = &ske_keypad_board;
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u8500_ssp0_device.dev.platform_data = &ssp0_platform_data;
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/* Register the active AMBA devices on this board */
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for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
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amba_device_register(amba_devs[i], &iomem_resource);
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platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
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mop500_sdi_init();
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/* If HW is early drop (ED) or V1.0 then use SPI to access AB8500 */
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if (cpu_is_u8500ed() || cpu_is_u8500v10())
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spi_register_board_info(ab8500_spi_devices,
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ARRAY_SIZE(ab8500_spi_devices));
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else /* If HW is v.1.1 or later use I2C to access AB8500 */
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platform_device_register(&ab8500_device);
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}
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MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
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/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
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.boot_params = 0x100,
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.map_io = u8500_map_io,
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.init_irq = ux500_init_irq,
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/* we re-use nomadik timer here */
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.timer = &ux500_timer,
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.init_machine = u8500_init_machine,
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MACHINE_END
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