[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 000000000000..771137fc1a82
--- /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