[ARM] pxa: add support for Embedian MXM-8x10

Signed-off-by: Edwin Peer <epeer@tmtservices.co.za>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 202 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c
new file mode 100644
index 0000000..771137f
--- /dev/null
+++ b/arch/arm/mach-pxa/icontrol.c
@@ -0,0 +1,202 @@
+/*
+ * 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 <mach/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,
+	.model                = CAN_MCP251X_MCP2515,
+	.board_specific_setup = NULL,
+	.power_enable         = NULL,
+	.transceiver_enable   = NULL
+};
+
+static struct spi_board_info mcp251x_board_info[] = {
+	{
+		.modalias        = "mcp251x",
+		.max_speed_hz    = 6500000,
+		.bus_num         = 3,
+		.chip_select     = 0,
+		.platform_data   = &mcp251x_info,
+		.controller_data = &mcp251x_chip_info1,
+		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ1)
+	},
+	{
+		.modalias        = "mcp251x",
+		.max_speed_hz    = 6500000,
+		.bus_num         = 3,
+		.chip_select     = 1,
+		.platform_data   = &mcp251x_info,
+		.controller_data = &mcp251x_chip_info2,
+		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ2)
+	},
+	{
+		.modalias        = "mcp251x",
+		.max_speed_hz    = 6500000,
+		.bus_num         = 4,
+		.chip_select     = 0,
+		.platform_data   = &mcp251x_info,
+		.controller_data = &mcp251x_chip_info3,
+		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ3)
+	},
+	{
+		.modalias        = "mcp251x",
+		.max_speed_hz    = 6500000,
+		.bus_num         = 4,
+		.chip_select     = 1,
+		.platform_data   = &mcp251x_info,
+		.controller_data = &mcp251x_chip_info4,
+		.irq             = 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")
+	.phys_io	= 0x40000000,
+	.boot_params	= 0xa0000100,
+	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
+	.map_io		= pxa_map_io,
+	.init_irq	= pxa3xx_init_irq,
+	.timer		= &pxa_timer,
+	.init_machine	= icontrol_init
+MACHINE_END