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fe1bd78bf1
The docs for the spi_imx platform data still refer to a -32 offset used to specify a native chip select. This was removed in commit602c8f4485("spi: imx: fix use of native chip-selects with devicetree") and no longer works as documented. Update documentation. The macro MXC_SPI_CS() is no longer is needed. If a board uses all native chip selects, then it's not necessary to specify a chip select array at all, as all native is the default (this is how device-tree configured SPI masters work too). Most of the spi-imx platform data users have their chip select arrays removed by this patch. This patch also fixes a bug in mx31moboard introduced in the '602 commit. When that board was updated in commit901f26bce6("ARM: imx: set correct chip_select in platform setup") to reflect the SPI change, only SPI bus 2 was updated and SPI bus 1 was left with non-sequential chip selects. The mc13783 spi device on bus 1 had its chip select updated as if it were on bus 2. CC: Sascha Hauer <kernel@pengutronix.de> CC: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
332 lines
9.2 KiB
C
332 lines
9.2 KiB
C
/*
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* LILLY-1131 module support
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*
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* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
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*
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* based on code for other MX31 boards,
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*
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* Copyright 2005-2007 Freescale Semiconductor
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* Copyright (c) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
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* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/interrupt.h>
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#include <linux/moduleparam.h>
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#include <linux/smsc911x.h>
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#include <linux/mtd/physmap.h>
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#include <linux/spi/spi.h>
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#include <linux/mfd/mc13783.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include "board-mx31lilly.h"
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#include "common.h"
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#include "devices-imx31.h"
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#include "ehci.h"
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#include "hardware.h"
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#include "iomux-mx3.h"
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#include "ulpi.h"
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/*
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* This file contains module-specific initialization routines for LILLY-1131.
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* Initialization of peripherals found on the baseboard is implemented in the
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* appropriate baseboard support code.
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*/
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static unsigned int mx31lilly_pins[] __initdata = {
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MX31_PIN_CTS1__CTS1,
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MX31_PIN_RTS1__RTS1,
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MX31_PIN_TXD1__TXD1,
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MX31_PIN_RXD1__RXD1,
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MX31_PIN_CTS2__CTS2,
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MX31_PIN_RTS2__RTS2,
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MX31_PIN_TXD2__TXD2,
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MX31_PIN_RXD2__RXD2,
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MX31_PIN_CSPI3_MOSI__RXD3,
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MX31_PIN_CSPI3_MISO__TXD3,
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MX31_PIN_CSPI3_SCLK__RTS3,
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MX31_PIN_CSPI3_SPI_RDY__CTS3,
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};
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/* UART */
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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/* SMSC ethernet support */
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static struct resource smsc91x_resources[] = {
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{
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.start = MX31_CS4_BASE_ADDR,
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.end = MX31_CS4_BASE_ADDR + 0xffff,
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.flags = IORESOURCE_MEM,
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},
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{
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/* irq number is run-time assigned */
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
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}
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};
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static struct smsc911x_platform_config smsc911x_config = {
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.phy_interface = PHY_INTERFACE_MODE_MII,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT |
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SMSC911X_SAVE_MAC_ADDRESS |
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SMSC911X_FORCE_INTERNAL_PHY,
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};
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static struct platform_device smsc91x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(smsc91x_resources),
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.resource = smsc91x_resources,
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.dev = {
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.platform_data = &smsc911x_config,
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}
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};
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/* NOR flash */
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static struct physmap_flash_data nor_flash_data = {
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.width = 2,
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};
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static struct resource nor_flash_resource = {
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.start = 0xa0000000,
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.end = 0xa1ffffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device physmap_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &nor_flash_data,
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},
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.resource = &nor_flash_resource,
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.num_resources = 1,
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};
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/* USB */
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#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
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PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
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static int usbh1_init(struct platform_device *pdev)
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{
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int pins[] = {
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MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
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MX31_PIN_CSPI1_MISO__USBH1_RXDP,
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MX31_PIN_CSPI1_SS0__USBH1_TXDM,
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MX31_PIN_CSPI1_SS1__USBH1_TXDP,
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MX31_PIN_CSPI1_SS2__USBH1_RCV,
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MX31_PIN_CSPI1_SCLK__USBH1_OEB,
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MX31_PIN_CSPI1_SPI_RDY__USBH1_FS,
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};
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mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H1");
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mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
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mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
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mdelay(10);
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return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
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MXC_EHCI_INTERFACE_SINGLE_UNI);
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}
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static int usbh2_init(struct platform_device *pdev)
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{
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int pins[] = {
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MX31_PIN_USBH2_DATA0__USBH2_DATA0,
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MX31_PIN_USBH2_DATA1__USBH2_DATA1,
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MX31_PIN_USBH2_CLK__USBH2_CLK,
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MX31_PIN_USBH2_DIR__USBH2_DIR,
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MX31_PIN_USBH2_NXT__USBH2_NXT,
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MX31_PIN_USBH2_STP__USBH2_STP,
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};
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mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
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mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
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mxc_iomux_set_gpr(MUX_PGP_UH2, true);
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/* chip select */
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mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
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"USBH2_CS");
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gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
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gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
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mdelay(10);
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return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
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}
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static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
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.init = usbh1_init,
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.portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
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};
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static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
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.init = usbh2_init,
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.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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};
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static void __init lilly1131_usb_init(void)
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{
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imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
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usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
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ULPI_OTG_DRVVBUS_EXT);
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if (usbh2_pdata.otg)
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imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
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}
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/* SPI */
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static const struct spi_imx_master spi0_pdata __initconst = {
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.num_chipselect = 3,
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};
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static const struct spi_imx_master spi1_pdata __initconst = {
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.num_chipselect = 3,
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};
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static struct mc13xxx_platform_data mc13783_pdata __initdata = {
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.flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
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};
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static struct spi_board_info mc13783_dev __initdata = {
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.modalias = "mc13783",
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.max_speed_hz = 1000000,
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.bus_num = 1,
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.chip_select = 0,
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.platform_data = &mc13783_pdata,
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/* irq number is run-time assigned */
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};
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static struct platform_device *devices[] __initdata = {
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&smsc91x_device,
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&physmap_flash_device,
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};
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static int mx31lilly_baseboard;
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core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
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static struct regulator_consumer_supply dummy_supplies[] = {
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REGULATOR_SUPPLY("vdd33a", "smsc911x"),
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REGULATOR_SUPPLY("vddvario", "smsc911x"),
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};
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static void __init mx31lilly_board_init(void)
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{
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imx31_soc_init();
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mxc_iomux_setup_multiple_pins(mx31lilly_pins,
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ARRAY_SIZE(mx31lilly_pins), "mx31lily");
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imx31_add_imx_uart0(&uart_pdata);
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imx31_add_imx_uart1(&uart_pdata);
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imx31_add_imx_uart2(&uart_pdata);
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mxc_iomux_alloc_pin(MX31_PIN_CS4__CS4, "Ethernet CS");
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/* SPI */
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SCLK__SCLK, "SPI1_CLK");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MOSI__MOSI, "SPI1_TX");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_MISO__MISO, "SPI1_RX");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SPI_RDY__SPI_RDY, "SPI1_RDY");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS0__SS0, "SPI1_SS0");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS1__SS1, "SPI1_SS1");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI1_SS2__SS2, "SPI1_SS2");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SCLK__SCLK, "SPI2_CLK");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MOSI__MOSI, "SPI2_TX");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_MISO__MISO, "SPI2_RX");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, "SPI2_RDY");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS0__SS0, "SPI2_SS0");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
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mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
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imx31_add_spi_imx0(&spi0_pdata);
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imx31_add_spi_imx1(&spi1_pdata);
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regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
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}
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static void __init mx31lilly_late_init(void)
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{
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if (mx31lilly_baseboard == MX31LILLY_DB)
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mx31lilly_db_init();
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mc13783_dev.irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
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spi_register_board_info(&mc13783_dev, 1);
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smsc91x_resources[1].start =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
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smsc91x_resources[1].end =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
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platform_add_devices(devices, ARRAY_SIZE(devices));
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/* USB */
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lilly1131_usb_init();
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}
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static void __init mx31lilly_timer_init(void)
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{
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mx31_clocks_init(26000000);
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}
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MACHINE_START(LILLY1131, "INCO startec LILLY-1131")
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.atag_offset = 0x100,
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.map_io = mx31_map_io,
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.init_early = imx31_init_early,
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.init_irq = mx31_init_irq,
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.init_time = mx31lilly_timer_init,
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.init_machine = mx31lilly_board_init,
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.init_late = mx31lilly_late_init,
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.restart = mxc_restart,
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MACHINE_END
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