mirror of
https://github.com/edk2-porting/linux-next.git
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b78d8e59a6
The patch makes necessary changes on gpio-mxc as below to turn it into an upstanding gpio driver. * Add a list to save all mx2 ports references, so that mx2_gpio_irq_handler can walk through all interrupt status registers * Use readl/writel to replace mach-specific accessors __raw_readl/__raw_writel * Change mxc_gpio_init into mxc_gpio_probe function * Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to be public at all, and also make some other cleanup on plat-mxc/include/mach/gpio.h at the same time And the patch then migrates mach-imx and mach-mx5 to the updated driver by adding corresponding platform devices. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
173 lines
4.7 KiB
C
173 lines
4.7 KiB
C
/*
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* Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
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* Copyright 2010 Eric Bénard - Eukréa Electromatique, <eric@eukrea.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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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/delay.h>
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#include <linux/clk.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <mach/eukrea-baseboards.h>
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#include <mach/hardware.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/memory.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <mach/mx25.h>
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#include <mach/iomux-mx25.h>
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#include "devices-imx25.h"
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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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static iomux_v3_cfg_t eukrea_cpuimx25_pads[] = {
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/* FEC - RMII */
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MX25_PAD_FEC_MDC__FEC_MDC,
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MX25_PAD_FEC_MDIO__FEC_MDIO,
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MX25_PAD_FEC_TDATA0__FEC_TDATA0,
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MX25_PAD_FEC_TDATA1__FEC_TDATA1,
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MX25_PAD_FEC_TX_EN__FEC_TX_EN,
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MX25_PAD_FEC_RDATA0__FEC_RDATA0,
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MX25_PAD_FEC_RDATA1__FEC_RDATA1,
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MX25_PAD_FEC_RX_DV__FEC_RX_DV,
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MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
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/* I2C1 */
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MX25_PAD_I2C1_CLK__I2C1_CLK,
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MX25_PAD_I2C1_DAT__I2C1_DAT,
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};
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static const struct fec_platform_data mx25_fec_pdata __initconst = {
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.phy = PHY_INTERFACE_MODE_RMII,
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};
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static const struct mxc_nand_platform_data
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eukrea_cpuimx25_nand_board_info __initconst = {
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.width = 1,
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.hw_ecc = 1,
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.flash_bbt = 1,
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};
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static const struct imxi2c_platform_data
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eukrea_cpuimx25_i2c0_data __initconst = {
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.bitrate = 100000,
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};
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static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
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{
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I2C_BOARD_INFO("pcf8563", 0x51),
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},
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};
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static int eukrea_cpuimx25_otg_init(struct platform_device *pdev)
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{
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return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
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}
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static const struct mxc_usbh_platform_data otg_pdata __initconst = {
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.init = eukrea_cpuimx25_otg_init,
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.portsc = MXC_EHCI_MODE_UTMI,
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};
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static int eukrea_cpuimx25_usbh2_init(struct platform_device *pdev)
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{
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return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
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MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
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}
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static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
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.init = eukrea_cpuimx25_usbh2_init,
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.portsc = MXC_EHCI_MODE_SERIAL,
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};
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static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_UTMI,
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};
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static int otg_mode_host;
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static int __init eukrea_cpuimx25_otg_mode(char *options)
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{
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if (!strcmp(options, "host"))
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otg_mode_host = 1;
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else if (!strcmp(options, "device"))
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otg_mode_host = 0;
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else
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pr_info("otg_mode neither \"host\" nor \"device\". "
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"Defaulting to device\n");
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return 0;
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}
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__setup("otg_mode=", eukrea_cpuimx25_otg_mode);
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static void __init eukrea_cpuimx25_init(void)
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{
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imx25_soc_init();
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if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
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ARRAY_SIZE(eukrea_cpuimx25_pads)))
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printk(KERN_ERR "error setting cpuimx25 pads !\n");
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imx25_add_imx_uart0(&uart_pdata);
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imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
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imx25_add_imxdi_rtc(NULL);
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imx25_add_fec(&mx25_fec_pdata);
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i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
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ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
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imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
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if (otg_mode_host)
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imx25_add_mxc_ehci_otg(&otg_pdata);
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else
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imx25_add_fsl_usb2_udc(&otg_device_pdata);
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imx25_add_mxc_ehci_hs(&usbh2_pdata);
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#ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
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eukrea_mbimxsd25_baseboard_init();
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#endif
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}
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static void __init eukrea_cpuimx25_timer_init(void)
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{
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mx25_clocks_init();
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}
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static struct sys_timer eukrea_cpuimx25_timer = {
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.init = eukrea_cpuimx25_timer_init,
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};
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MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
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/* Maintainer: Eukrea Electromatique */
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.boot_params = MX25_PHYS_OFFSET + 0x100,
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.map_io = mx25_map_io,
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.init_early = imx25_init_early,
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.init_irq = mx25_init_irq,
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.timer = &eukrea_cpuimx25_timer,
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.init_machine = eukrea_cpuimx25_init,
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MACHINE_END
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