2019-06-04 11:11:33 +03:00
|
|
|
// SPDX-License-Identifier: GPL-2.0-only
|
2010-02-05 19:31:48 +03:00
|
|
|
/*
|
|
|
|
* linux/arch/arm/mach-pxa/icontrol.c
|
|
|
|
*
|
|
|
|
* Support for the iControl and SafeTcam platforms from TMT Services
|
|
|
|
* using the Embedian MXM-8x10 Computer on Module
|
|
|
|
*
|
|
|
|
* Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
|
|
|
|
*
|
|
|
|
* 2010-01-21 Hennie van der Merve <hvdmerwe@tmtservies.co.za>
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/irq.h>
|
|
|
|
#include <linux/platform_device.h>
|
2019-10-08 19:20:39 +03:00
|
|
|
#include <linux/property.h>
|
2010-02-05 19:31:48 +03:00
|
|
|
#include <linux/gpio.h>
|
|
|
|
|
|
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
|
|
|
2015-01-30 12:45:33 +03:00
|
|
|
#include "pxa320.h"
|
|
|
|
#include "mxm8x10.h"
|
2010-02-05 19:31:48 +03:00
|
|
|
|
|
|
|
#include <linux/spi/spi.h>
|
2010-11-23 04:12:15 +03:00
|
|
|
#include <linux/spi/pxa2xx_spi.h>
|
2015-07-11 22:33:06 +03:00
|
|
|
#include <linux/regulator/machine.h>
|
2010-02-05 19:31:48 +03:00
|
|
|
|
|
|
|
#include "generic.h"
|
|
|
|
|
|
|
|
#define ICONTROL_MCP251x_nCS1 (15)
|
|
|
|
#define ICONTROL_MCP251x_nCS2 (16)
|
|
|
|
#define ICONTROL_MCP251x_nCS3 (17)
|
|
|
|
#define ICONTROL_MCP251x_nCS4 (24)
|
|
|
|
|
|
|
|
#define ICONTROL_MCP251x_nIRQ1 (74)
|
|
|
|
#define ICONTROL_MCP251x_nIRQ2 (75)
|
|
|
|
#define ICONTROL_MCP251x_nIRQ3 (76)
|
|
|
|
#define ICONTROL_MCP251x_nIRQ4 (77)
|
|
|
|
|
|
|
|
static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
|
|
|
|
.tx_threshold = 8,
|
|
|
|
.rx_threshold = 128,
|
|
|
|
.dma_burst_size = 8,
|
|
|
|
.timeout = 235,
|
|
|
|
.gpio_cs = ICONTROL_MCP251x_nCS1
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
|
|
|
|
.tx_threshold = 8,
|
|
|
|
.rx_threshold = 128,
|
|
|
|
.dma_burst_size = 8,
|
|
|
|
.timeout = 235,
|
|
|
|
.gpio_cs = ICONTROL_MCP251x_nCS2
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
|
|
|
|
.tx_threshold = 8,
|
|
|
|
.rx_threshold = 128,
|
|
|
|
.dma_burst_size = 8,
|
|
|
|
.timeout = 235,
|
|
|
|
.gpio_cs = ICONTROL_MCP251x_nCS3
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
|
|
|
|
.tx_threshold = 8,
|
|
|
|
.rx_threshold = 128,
|
|
|
|
.dma_burst_size = 8,
|
|
|
|
.timeout = 235,
|
|
|
|
.gpio_cs = ICONTROL_MCP251x_nCS4
|
|
|
|
};
|
|
|
|
|
2019-10-08 19:20:39 +03:00
|
|
|
static const struct property_entry mcp251x_properties[] = {
|
|
|
|
PROPERTY_ENTRY_U32("clock-frequency", 16000000),
|
|
|
|
{}
|
2010-02-05 19:31:48 +03:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct spi_board_info mcp251x_board_info[] = {
|
|
|
|
{
|
2010-03-29 12:57:56 +04:00
|
|
|
.modalias = "mcp2515",
|
2010-02-05 19:31:48 +03:00
|
|
|
.max_speed_hz = 6500000,
|
|
|
|
.bus_num = 3,
|
|
|
|
.chip_select = 0,
|
2019-10-08 19:20:39 +03:00
|
|
|
.properties = mcp251x_properties,
|
2010-02-05 19:31:48 +03:00
|
|
|
.controller_data = &mcp251x_chip_info1,
|
2011-10-10 12:03:51 +04:00
|
|
|
.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
|
2010-02-05 19:31:48 +03:00
|
|
|
},
|
|
|
|
{
|
2010-03-29 12:57:56 +04:00
|
|
|
.modalias = "mcp2515",
|
2010-02-05 19:31:48 +03:00
|
|
|
.max_speed_hz = 6500000,
|
|
|
|
.bus_num = 3,
|
|
|
|
.chip_select = 1,
|
2019-12-03 13:41:17 +03:00
|
|
|
.properties = mcp251x_properties,
|
2010-02-05 19:31:48 +03:00
|
|
|
.controller_data = &mcp251x_chip_info2,
|
2011-10-10 12:03:51 +04:00
|
|
|
.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
|
2010-02-05 19:31:48 +03:00
|
|
|
},
|
|
|
|
{
|
2010-03-29 12:57:56 +04:00
|
|
|
.modalias = "mcp2515",
|
2010-02-05 19:31:48 +03:00
|
|
|
.max_speed_hz = 6500000,
|
|
|
|
.bus_num = 4,
|
|
|
|
.chip_select = 0,
|
2019-12-03 13:41:17 +03:00
|
|
|
.properties = mcp251x_properties,
|
2010-02-05 19:31:48 +03:00
|
|
|
.controller_data = &mcp251x_chip_info3,
|
2011-10-10 12:03:51 +04:00
|
|
|
.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
|
2010-02-05 19:31:48 +03:00
|
|
|
},
|
|
|
|
{
|
2010-03-29 12:57:56 +04:00
|
|
|
.modalias = "mcp2515",
|
2010-02-05 19:31:48 +03:00
|
|
|
.max_speed_hz = 6500000,
|
|
|
|
.bus_num = 4,
|
|
|
|
.chip_select = 1,
|
2019-12-03 13:41:17 +03:00
|
|
|
.properties = mcp251x_properties,
|
2010-02-05 19:31:48 +03:00
|
|
|
.controller_data = &mcp251x_chip_info4,
|
2011-10-10 12:03:51 +04:00
|
|
|
.irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
|
2010-02-05 19:31:48 +03:00
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2019-01-16 18:13:31 +03:00
|
|
|
static struct pxa2xx_spi_controller pxa_ssp3_spi_master_info = {
|
2010-02-05 19:31:48 +03:00
|
|
|
.num_chipselect = 2,
|
|
|
|
.enable_dma = 1
|
|
|
|
};
|
|
|
|
|
2019-01-16 18:13:31 +03:00
|
|
|
static struct pxa2xx_spi_controller pxa_ssp4_spi_master_info = {
|
2010-02-05 19:31:48 +03:00
|
|
|
.num_chipselect = 2,
|
|
|
|
.enable_dma = 1
|
|
|
|
};
|
|
|
|
|
|
|
|
struct platform_device pxa_spi_ssp3 = {
|
|
|
|
.name = "pxa2xx-spi",
|
|
|
|
.id = 3,
|
|
|
|
.dev = {
|
|
|
|
.platform_data = &pxa_ssp3_spi_master_info,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
struct platform_device pxa_spi_ssp4 = {
|
|
|
|
.name = "pxa2xx-spi",
|
|
|
|
.id = 4,
|
|
|
|
.dev = {
|
|
|
|
.platform_data = &pxa_ssp4_spi_master_info,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct platform_device *icontrol_spi_devices[] __initdata = {
|
|
|
|
&pxa_spi_ssp3,
|
|
|
|
&pxa_spi_ssp4,
|
|
|
|
};
|
|
|
|
|
|
|
|
static mfp_cfg_t mfp_can_cfg[] __initdata = {
|
|
|
|
/* CAN CS lines */
|
|
|
|
GPIO15_GPIO,
|
|
|
|
GPIO16_GPIO,
|
|
|
|
GPIO17_GPIO,
|
|
|
|
GPIO24_GPIO,
|
|
|
|
|
|
|
|
/* SPI (SSP3) lines */
|
|
|
|
GPIO89_SSP3_SCLK,
|
|
|
|
GPIO91_SSP3_TXD,
|
|
|
|
GPIO92_SSP3_RXD,
|
|
|
|
|
|
|
|
/* SPI (SSP4) lines */
|
|
|
|
GPIO93_SSP4_SCLK,
|
|
|
|
GPIO95_SSP4_TXD,
|
|
|
|
GPIO96_SSP4_RXD,
|
|
|
|
|
|
|
|
/* CAN nIRQ lines */
|
|
|
|
GPIO74_GPIO | MFP_LPM_EDGE_RISE,
|
|
|
|
GPIO75_GPIO | MFP_LPM_EDGE_RISE,
|
|
|
|
GPIO76_GPIO | MFP_LPM_EDGE_RISE,
|
|
|
|
GPIO77_GPIO | MFP_LPM_EDGE_RISE
|
|
|
|
};
|
|
|
|
|
|
|
|
static void __init icontrol_can_init(void)
|
|
|
|
{
|
|
|
|
pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
|
|
|
|
platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
|
|
|
|
spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __init icontrol_init(void)
|
|
|
|
{
|
|
|
|
mxm_8x10_barebones_init();
|
|
|
|
mxm_8x10_usb_host_init();
|
|
|
|
mxm_8x10_mmc_init();
|
|
|
|
|
|
|
|
icontrol_can_init();
|
2015-07-11 22:33:06 +03:00
|
|
|
|
|
|
|
regulator_has_full_constraints();
|
2010-02-05 19:31:48 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
|
2011-07-06 06:38:15 +04:00
|
|
|
.atag_offset = 0x100,
|
2010-10-11 04:20:19 +04:00
|
|
|
.map_io = pxa3xx_map_io,
|
2012-01-04 02:53:48 +04:00
|
|
|
.nr_irqs = PXA_NR_IRQS,
|
2010-02-05 19:31:48 +03:00
|
|
|
.init_irq = pxa3xx_init_irq,
|
2011-05-18 17:30:04 +04:00
|
|
|
.handle_irq = pxa3xx_handle_irq,
|
2012-11-08 23:40:59 +04:00
|
|
|
.init_time = pxa_timer_init,
|
2011-11-04 18:15:53 +04:00
|
|
|
.init_machine = icontrol_init,
|
|
|
|
.restart = pxa_restart,
|
2010-02-05 19:31:48 +03:00
|
|
|
MACHINE_END
|