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b6480faeee
include/linux/i2c is not for client devices. Move the header file to a more appropriate location. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
647 lines
16 KiB
C
647 lines
16 KiB
C
/*
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* TI DA830/OMAP L137 EVM board
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*
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* Author: Mark A. Greer <mgreer@mvista.com>
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* Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
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*
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* 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/platform_data/pcf857x.h>
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#include <linux/platform_data/at24.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/flash.h>
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#include <linux/platform_data/gpio-davinci.h>
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#include <linux/platform_data/mtd-davinci.h>
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#include <linux/platform_data/mtd-davinci-aemif.h>
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#include <linux/platform_data/spi-davinci.h>
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#include <linux/platform_data/usb-davinci.h>
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#include <linux/regulator/machine.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/common.h>
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#include "cp_intc.h"
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#include <mach/mux.h>
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#include <mach/da8xx.h>
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#define DA830_EVM_PHY_ID ""
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/*
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* USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
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*/
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#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
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#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
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static const short da830_evm_usb11_pins[] = {
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DA830_GPIO1_15, DA830_GPIO2_4,
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-1
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};
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static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
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static int da830_evm_usb_set_power(unsigned port, int on)
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{
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gpio_set_value(ON_BD_USB_DRV, on);
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return 0;
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}
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static int da830_evm_usb_get_power(unsigned port)
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{
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return gpio_get_value(ON_BD_USB_DRV);
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}
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static int da830_evm_usb_get_oci(unsigned port)
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{
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return !gpio_get_value(ON_BD_USB_OVC);
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}
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static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
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static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
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{
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int irq = gpio_to_irq(ON_BD_USB_OVC);
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int error = 0;
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if (handler != NULL) {
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da830_evm_usb_ocic_handler = handler;
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error = request_irq(irq, da830_evm_usb_ocic_irq,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"OHCI over-current indicator", NULL);
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if (error)
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pr_err("%s: could not request IRQ to watch over-current indicator changes\n",
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__func__);
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} else
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free_irq(irq, NULL);
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return error;
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}
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static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
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.set_power = da830_evm_usb_set_power,
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.get_power = da830_evm_usb_get_power,
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.get_oci = da830_evm_usb_get_oci,
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.ocic_notify = da830_evm_usb_ocic_notify,
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/* TPS2065 switch @ 5V */
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.potpgt = (3 + 1) / 2, /* 3 ms max */
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};
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static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
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{
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da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
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return IRQ_HANDLED;
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}
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static __init void da830_evm_usb_init(void)
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{
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int ret;
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/* USB_REFCLKIN is not used. */
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ret = da8xx_register_usb20_phy_clk(false);
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if (ret)
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pr_warn("%s: USB 2.0 PHY CLK registration failed: %d\n",
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__func__, ret);
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ret = da8xx_register_usb11_phy_clk(false);
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if (ret)
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pr_warn("%s: USB 1.1 PHY CLK registration failed: %d\n",
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__func__, ret);
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ret = da8xx_register_usb_phy();
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if (ret)
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pr_warn("%s: USB PHY registration failed: %d\n",
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__func__, ret);
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ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
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if (ret)
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pr_warn("%s: USB 2.0 PinMux setup failed: %d\n", __func__, ret);
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else {
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/*
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* TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
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* with the power on to power good time of 3 ms.
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*/
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ret = da8xx_register_usb20(1000, 3);
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if (ret)
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pr_warn("%s: USB 2.0 registration failed: %d\n",
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__func__, ret);
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}
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ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
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if (ret) {
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pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
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return;
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}
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ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
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if (ret) {
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pr_err("%s: failed to request GPIO for USB 1.1 port power control: %d\n",
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__func__, ret);
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return;
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}
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gpio_direction_output(ON_BD_USB_DRV, 0);
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ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
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if (ret) {
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pr_err("%s: failed to request GPIO for USB 1.1 port over-current indicator: %d\n",
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__func__, ret);
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return;
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}
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gpio_direction_input(ON_BD_USB_OVC);
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ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
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if (ret)
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pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
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}
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static const short da830_evm_mcasp1_pins[] = {
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DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
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DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
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DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
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DA830_AXR1_11,
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-1
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};
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static u8 da830_iis_serializer_direction[] = {
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RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
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INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
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};
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static struct snd_platform_data da830_evm_snd_data = {
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.tx_dma_offset = 0x2000,
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.rx_dma_offset = 0x2000,
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.op_mode = DAVINCI_MCASP_IIS_MODE,
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.num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
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.tdm_slots = 2,
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.serial_dir = da830_iis_serializer_direction,
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.asp_chan_q = EVENTQ_0,
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.version = MCASP_VERSION_2,
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.txnumevt = 1,
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.rxnumevt = 1,
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};
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/*
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* GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
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*/
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static const short da830_evm_mmc_sd_pins[] = {
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DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
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DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
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DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
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DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
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-1
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};
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static struct gpiod_lookup_table mmc_gpios_table = {
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.dev_id = "da830-mmc.0",
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.table = {
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/* gpio chip 1 contains gpio range 32-63 */
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GPIO_LOOKUP("davinci_gpio.1", 2, "cd", GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("davinci_gpio.1", 1, "wp", GPIO_ACTIVE_LOW),
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},
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};
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static struct davinci_mmc_config da830_evm_mmc_config = {
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.wires = 8,
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.max_freq = 50000000,
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.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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};
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static inline void da830_evm_init_mmc(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins);
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if (ret) {
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pr_warn("%s: mmc/sd mux setup failed: %d\n", __func__, ret);
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return;
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}
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gpiod_add_lookup_table(&mmc_gpios_table);
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ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
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if (ret) {
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pr_warn("%s: mmc/sd registration failed: %d\n", __func__, ret);
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gpiod_remove_lookup_table(&mmc_gpios_table);
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}
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}
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/*
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* UI board NAND/NOR flashes only use 8-bit data bus.
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*/
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static const short da830_evm_emif25_pins[] = {
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DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3,
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DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7,
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DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3,
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DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7,
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DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11,
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DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE,
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DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0,
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-1
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};
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#define HAS_MMC IS_ENABLED(CONFIG_MMC_DAVINCI)
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#ifdef CONFIG_DA830_UI_NAND
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static struct mtd_partition da830_evm_nand_partitions[] = {
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/* bootloader (U-Boot, etc) in first sector */
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[0] = {
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.name = "bootloader",
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.offset = 0,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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/* bootloader params in the next sector */
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[1] = {
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.name = "params",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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/* kernel */
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[2] = {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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.mask_flags = 0,
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},
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/* file system */
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[3] = {
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.name = "filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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}
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};
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/* flash bbt decriptors */
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static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' };
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static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' };
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static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = {
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.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
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NAND_BBT_WRITE | NAND_BBT_2BIT |
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NAND_BBT_VERSION | NAND_BBT_PERCHIP,
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.offs = 2,
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.len = 4,
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.veroffs = 16,
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.maxblocks = 4,
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.pattern = da830_evm_nand_bbt_pattern
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};
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static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = {
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.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE |
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NAND_BBT_WRITE | NAND_BBT_2BIT |
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NAND_BBT_VERSION | NAND_BBT_PERCHIP,
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.offs = 2,
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.len = 4,
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.veroffs = 16,
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.maxblocks = 4,
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.pattern = da830_evm_nand_mirror_pattern
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};
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static struct davinci_aemif_timing da830_evm_nandflash_timing = {
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.wsetup = 24,
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.wstrobe = 21,
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.whold = 14,
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.rsetup = 19,
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.rstrobe = 50,
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.rhold = 0,
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.ta = 20,
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};
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static struct davinci_nand_pdata da830_evm_nand_pdata = {
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.parts = da830_evm_nand_partitions,
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.nr_parts = ARRAY_SIZE(da830_evm_nand_partitions),
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.ecc_mode = NAND_ECC_HW,
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.ecc_bits = 4,
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.bbt_options = NAND_BBT_USE_FLASH,
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.bbt_td = &da830_evm_nand_bbt_main_descr,
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.bbt_md = &da830_evm_nand_bbt_mirror_descr,
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.timing = &da830_evm_nandflash_timing,
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};
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static struct resource da830_evm_nand_resources[] = {
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[0] = { /* First memory resource is NAND I/O window */
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.start = DA8XX_AEMIF_CS3_BASE,
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.end = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = { /* Second memory resource is AEMIF control registers */
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.start = DA8XX_AEMIF_CTL_BASE,
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.end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device da830_evm_nand_device = {
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.name = "davinci_nand",
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.id = 1,
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.dev = {
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.platform_data = &da830_evm_nand_pdata,
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},
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.num_resources = ARRAY_SIZE(da830_evm_nand_resources),
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.resource = da830_evm_nand_resources,
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};
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static inline void da830_evm_init_nand(int mux_mode)
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{
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int ret;
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if (HAS_MMC) {
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pr_warn("WARNING: both MMC/SD and NAND are enabled, but they share AEMIF pins\n"
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"\tDisable MMC/SD for NAND support\n");
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return;
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}
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ret = davinci_cfg_reg_list(da830_evm_emif25_pins);
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if (ret)
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pr_warn("%s: emif25 mux setup failed: %d\n", __func__, ret);
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ret = platform_device_register(&da830_evm_nand_device);
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if (ret)
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pr_warn("%s: NAND device not registered\n", __func__);
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if (davinci_aemif_setup(&da830_evm_nand_device))
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pr_warn("%s: Cannot configure AEMIF\n", __func__);
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gpio_direction_output(mux_mode, 1);
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}
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#else
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static inline void da830_evm_init_nand(int mux_mode) { }
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#endif
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#ifdef CONFIG_DA830_UI_LCD
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static inline void da830_evm_init_lcdc(int mux_mode)
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{
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int ret;
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ret = davinci_cfg_reg_list(da830_lcdcntl_pins);
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if (ret)
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pr_warn("%s: lcdcntl mux setup failed: %d\n", __func__, ret);
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ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
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if (ret)
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pr_warn("%s: lcd setup failed: %d\n", __func__, ret);
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gpio_direction_output(mux_mode, 0);
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}
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#else
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static inline void da830_evm_init_lcdc(int mux_mode) { }
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#endif
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static struct at24_platform_data da830_evm_i2c_eeprom_info = {
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.byte_len = SZ_256K / 8,
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.page_size = 64,
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.flags = AT24_FLAG_ADDR16,
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.setup = davinci_get_mac_addr,
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.context = (void *)0x7f00,
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};
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static int __init da830_evm_ui_expander_setup(struct i2c_client *client,
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int gpio, unsigned ngpio, void *context)
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{
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gpio_request(gpio + 6, "UI MUX_MODE");
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/* Drive mux mode low to match the default without UI card */
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gpio_direction_output(gpio + 6, 0);
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da830_evm_init_lcdc(gpio + 6);
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da830_evm_init_nand(gpio + 6);
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return 0;
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}
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static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
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unsigned ngpio, void *context)
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{
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gpio_free(gpio + 6);
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return 0;
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}
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static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = {
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.gpio_base = DAVINCI_N_GPIO,
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.setup = da830_evm_ui_expander_setup,
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.teardown = da830_evm_ui_expander_teardown,
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};
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static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
|
|
{
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|
I2C_BOARD_INFO("24c256", 0x50),
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|
.platform_data = &da830_evm_i2c_eeprom_info,
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|
},
|
|
{
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|
I2C_BOARD_INFO("tlv320aic3x", 0x18),
|
|
},
|
|
{
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|
I2C_BOARD_INFO("pcf8574", 0x3f),
|
|
.platform_data = &da830_evm_ui_expander_info,
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|
},
|
|
};
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|
|
|
static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
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|
.bus_freq = 100, /* kHz */
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|
.bus_delay = 0, /* usec */
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|
};
|
|
|
|
/*
|
|
* The following EDMA channels/slots are not being used by drivers (for
|
|
* example: Timer, GPIO, UART events etc) on da830/omap-l137 EVM, hence
|
|
* they are being reserved for codecs on the DSP side.
|
|
*/
|
|
static const s16 da830_dma_rsv_chans[][2] = {
|
|
/* (offset, number) */
|
|
{ 8, 2},
|
|
{12, 2},
|
|
{24, 4},
|
|
{30, 2},
|
|
{-1, -1}
|
|
};
|
|
|
|
static const s16 da830_dma_rsv_slots[][2] = {
|
|
/* (offset, number) */
|
|
{ 8, 2},
|
|
{12, 2},
|
|
{24, 4},
|
|
{30, 26},
|
|
{-1, -1}
|
|
};
|
|
|
|
static struct edma_rsv_info da830_edma_rsv[] = {
|
|
{
|
|
.rsv_chans = da830_dma_rsv_chans,
|
|
.rsv_slots = da830_dma_rsv_slots,
|
|
},
|
|
};
|
|
|
|
static struct mtd_partition da830evm_spiflash_part[] = {
|
|
[0] = {
|
|
.name = "DSP-UBL",
|
|
.offset = 0,
|
|
.size = SZ_8K,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
},
|
|
[1] = {
|
|
.name = "ARM-UBL",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = SZ_16K + SZ_8K,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
},
|
|
[2] = {
|
|
.name = "U-Boot",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = SZ_256K - SZ_32K,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
},
|
|
[3] = {
|
|
.name = "U-Boot-Environment",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = SZ_16K,
|
|
.mask_flags = 0,
|
|
},
|
|
[4] = {
|
|
.name = "Kernel",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = MTDPART_SIZ_FULL,
|
|
.mask_flags = 0,
|
|
},
|
|
};
|
|
|
|
static struct flash_platform_data da830evm_spiflash_data = {
|
|
.name = "m25p80",
|
|
.parts = da830evm_spiflash_part,
|
|
.nr_parts = ARRAY_SIZE(da830evm_spiflash_part),
|
|
.type = "w25x32",
|
|
};
|
|
|
|
static struct davinci_spi_config da830evm_spiflash_cfg = {
|
|
.io_type = SPI_IO_TYPE_DMA,
|
|
.c2tdelay = 8,
|
|
.t2cdelay = 8,
|
|
};
|
|
|
|
static struct spi_board_info da830evm_spi_info[] = {
|
|
{
|
|
.modalias = "m25p80",
|
|
.platform_data = &da830evm_spiflash_data,
|
|
.controller_data = &da830evm_spiflash_cfg,
|
|
.mode = SPI_MODE_0,
|
|
.max_speed_hz = 30000000,
|
|
.bus_num = 0,
|
|
.chip_select = 0,
|
|
},
|
|
};
|
|
|
|
static __init void da830_evm_init(void)
|
|
{
|
|
struct davinci_soc_info *soc_info = &davinci_soc_info;
|
|
int ret;
|
|
|
|
ret = da8xx_register_cfgchip();
|
|
if (ret)
|
|
pr_warn("%s: CFGCHIP registration failed: %d\n", __func__, ret);
|
|
|
|
ret = da830_register_gpio();
|
|
if (ret)
|
|
pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
|
|
|
|
ret = da830_register_edma(da830_edma_rsv);
|
|
if (ret)
|
|
pr_warn("%s: edma registration failed: %d\n", __func__, ret);
|
|
|
|
ret = davinci_cfg_reg_list(da830_i2c0_pins);
|
|
if (ret)
|
|
pr_warn("%s: i2c0 mux setup failed: %d\n", __func__, ret);
|
|
|
|
ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
|
|
if (ret)
|
|
pr_warn("%s: i2c0 registration failed: %d\n", __func__, ret);
|
|
|
|
da830_evm_usb_init();
|
|
|
|
soc_info->emac_pdata->rmii_en = 1;
|
|
soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID;
|
|
|
|
ret = davinci_cfg_reg_list(da830_cpgmac_pins);
|
|
if (ret)
|
|
pr_warn("%s: cpgmac mux setup failed: %d\n", __func__, ret);
|
|
|
|
ret = da8xx_register_emac();
|
|
if (ret)
|
|
pr_warn("%s: emac registration failed: %d\n", __func__, ret);
|
|
|
|
ret = da8xx_register_watchdog();
|
|
if (ret)
|
|
pr_warn("%s: watchdog registration failed: %d\n",
|
|
__func__, ret);
|
|
|
|
davinci_serial_init(da8xx_serial_device);
|
|
i2c_register_board_info(1, da830_evm_i2c_devices,
|
|
ARRAY_SIZE(da830_evm_i2c_devices));
|
|
|
|
ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins);
|
|
if (ret)
|
|
pr_warn("%s: mcasp1 mux setup failed: %d\n", __func__, ret);
|
|
|
|
da8xx_register_mcasp(1, &da830_evm_snd_data);
|
|
|
|
da830_evm_init_mmc();
|
|
|
|
ret = da8xx_register_rtc();
|
|
if (ret)
|
|
pr_warn("%s: rtc setup failed: %d\n", __func__, ret);
|
|
|
|
ret = spi_register_board_info(da830evm_spi_info,
|
|
ARRAY_SIZE(da830evm_spi_info));
|
|
if (ret)
|
|
pr_warn("%s: spi info registration failed: %d\n",
|
|
__func__, ret);
|
|
|
|
ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info));
|
|
if (ret)
|
|
pr_warn("%s: spi 0 registration failed: %d\n", __func__, ret);
|
|
|
|
regulator_has_full_constraints();
|
|
}
|
|
|
|
#ifdef CONFIG_SERIAL_8250_CONSOLE
|
|
static int __init da830_evm_console_init(void)
|
|
{
|
|
if (!machine_is_davinci_da830_evm())
|
|
return 0;
|
|
|
|
return add_preferred_console("ttyS", 2, "115200");
|
|
}
|
|
console_initcall(da830_evm_console_init);
|
|
#endif
|
|
|
|
static void __init da830_evm_map_io(void)
|
|
{
|
|
da830_init();
|
|
}
|
|
|
|
MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM")
|
|
.atag_offset = 0x100,
|
|
.map_io = da830_evm_map_io,
|
|
.init_irq = cp_intc_init,
|
|
.init_time = davinci_timer_init,
|
|
.init_machine = da830_evm_init,
|
|
.init_late = davinci_init_late,
|
|
.dma_zone_size = SZ_128M,
|
|
.restart = da8xx_restart,
|
|
MACHINE_END
|