2 * Copyright (C) 2008-2009 ST-Ericsson
4 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2, as
8 * published by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/platform_device.h>
16 #include <linux/gpio.h>
17 #include <linux/amba/bus.h>
18 #include <linux/amba/pl022.h>
19 #include <linux/spi/spi.h>
20 #include <linux/mfd/ab8500.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
25 #include <plat/pincfg.h>
28 #include <mach/hardware.h>
29 #include <mach/setup.h>
30 #include <mach/devices.h>
32 #include "pins-db8500.h"
34 static pin_cfg_t mop500_pins
[] = {
52 static void ab4500_spi_cs_control(u32 command
)
54 /* set the FRM signal, which is CS - TODO */
57 struct pl022_config_chip ab4500_chip_info
= {
58 .lbm
= LOOPBACK_DISABLED
,
59 .com_mode
= INTERRUPT_TRANSFER
,
60 .iface
= SSP_INTERFACE_MOTOROLA_SPI
,
61 /* we can act as master only */
62 .hierarchy
= SSP_MASTER
,
63 .slave_tx_disable
= 0,
64 .endian_rx
= SSP_RX_MSB
,
65 .endian_tx
= SSP_TX_MSB
,
66 .data_size
= SSP_DATA_BITS_24
,
67 .rx_lev_trig
= SSP_RX_1_OR_MORE_ELEM
,
68 .tx_lev_trig
= SSP_TX_1_OR_MORE_EMPTY_LOC
,
69 .clk_phase
= SSP_CLK_SECOND_EDGE
,
70 .clk_pol
= SSP_CLK_POL_IDLE_HIGH
,
71 .cs_control
= ab4500_spi_cs_control
,
74 static struct ab8500_platform_data ab8500_platdata
= {
75 .irq_base
= MOP500_AB8500_IRQ_BASE
,
78 static struct spi_board_info u8500_spi_devices
[] = {
81 .controller_data
= &ab4500_chip_info
,
82 .platform_data
= &ab8500_platdata
,
83 .max_speed_hz
= 12000000,
87 .irq
= IRQ_DB8500_AB8500
,
91 static struct pl022_ssp_controller ssp0_platform_data
= {
93 /* pl022 not yet supports dma */
95 /* on this platform, gpio 31,142,144,214 &
96 * 224 are connected as chip selects
101 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
102 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
104 * slave data setup time, which is \
105 * 250 ns,100ns,10ns which is 14,6,2 \
106 * respectively for a 48 Mhz \
110 /* Tx FIFO threshold */ \
112 /* Rx FIFO threshold */ \
114 /* std. mode operation */ \
120 * The board uses 4 i2c controllers, initialize all of
121 * them with slave data setup time of 250 ns,
122 * Tx & Rx FIFO threshold values as 1 and standard
125 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD
);
126 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD
);
127 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD
);
128 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD
);
130 static struct amba_device
*amba_devs
[] __initdata
= {
137 /* add any platform devices here - TODO */
138 static struct platform_device
*platform_devs
[] __initdata
= {
145 static void __init
u8500_init_machine(void)
149 u8500_init_devices();
151 nmk_config_pins(mop500_pins
, ARRAY_SIZE(mop500_pins
));
153 u8500_i2c0_device
.dev
.platform_data
= &u8500_i2c0_data
;
154 ux500_i2c1_device
.dev
.platform_data
= &u8500_i2c1_data
;
155 ux500_i2c2_device
.dev
.platform_data
= &u8500_i2c2_data
;
156 ux500_i2c3_device
.dev
.platform_data
= &u8500_i2c3_data
;
158 u8500_ssp0_device
.dev
.platform_data
= &ssp0_platform_data
;
160 /* Register the active AMBA devices on this board */
161 for (i
= 0; i
< ARRAY_SIZE(amba_devs
); i
++)
162 amba_device_register(amba_devs
[i
], &iomem_resource
);
164 platform_add_devices(platform_devs
, ARRAY_SIZE(platform_devs
));
166 spi_register_board_info(u8500_spi_devices
,
167 ARRAY_SIZE(u8500_spi_devices
));
170 MACHINE_START(U8500
, "ST-Ericsson MOP500 platform")
171 /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
172 .phys_io
= U8500_UART2_BASE
,
173 .io_pg_offst
= (IO_ADDRESS(U8500_UART2_BASE
) >> 18) & 0xfffc,
174 .boot_params
= 0x100,
175 .map_io
= u8500_map_io
,
176 .init_irq
= ux500_init_irq
,
177 /* we re-use nomadik timer here */
178 .timer
= &ux500_timer
,
179 .init_machine
= u8500_init_machine
,