--- /dev/null
+/*
+ * 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>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/pxa320.h>
+#include <mach/mxm8x10.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/can/platform/mcp251x.h>
+
+#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
+};
+
+static struct mcp251x_platform_data mcp251x_info = {
+ .oscillator_frequency = 16E6,
+};
+
+static struct spi_board_info mcp251x_board_info[] = {
+ {
+ .modalias = "mcp2515",
+ .max_speed_hz = 6500000,
+ .bus_num = 3,
+ .chip_select = 0,
+ .platform_data = &mcp251x_info,
+ .controller_data = &mcp251x_chip_info1,
+ .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
+ },
+ {
+ .modalias = "mcp2515",
+ .max_speed_hz = 6500000,
+ .bus_num = 3,
+ .chip_select = 1,
+ .platform_data = &mcp251x_info,
+ .controller_data = &mcp251x_chip_info2,
+ .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
+ },
+ {
+ .modalias = "mcp2515",
+ .max_speed_hz = 6500000,
+ .bus_num = 4,
+ .chip_select = 0,
+ .platform_data = &mcp251x_info,
+ .controller_data = &mcp251x_chip_info3,
+ .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
+ },
+ {
+ .modalias = "mcp2515",
+ .max_speed_hz = 6500000,
+ .bus_num = 4,
+ .chip_select = 1,
+ .platform_data = &mcp251x_info,
+ .controller_data = &mcp251x_chip_info4,
+ .irq = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
+ }
+};
+
+static struct pxa2xx_spi_master pxa_ssp3_spi_master_info = {
+ .clock_enable = CKEN_SSP3,
+ .num_chipselect = 2,
+ .enable_dma = 1
+};
+
+static struct pxa2xx_spi_master pxa_ssp4_spi_master_info = {
+ .clock_enable = CKEN_SSP4,
+ .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();
+}
+
+MACHINE_START(ICONTROL, "iControl/SafeTcam boards using Embedian MXM-8x10 CoM")
+ .atag_offset = 0x100,
+ .map_io = pxa3xx_map_io,
+ .nr_irqs = PXA_NR_IRQS,
+ .init_irq = pxa3xx_init_irq,
+ .handle_irq = pxa3xx_handle_irq,
+ .init_time = pxa_timer_init,
+ .init_machine = icontrol_init,
+ .restart = pxa_restart,
+MACHINE_END
Code Review / kvmfornfv.git / blobdiff