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c942fddf87
Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
292 lines
6.9 KiB
C
292 lines
6.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* KZM-ARM11-01 support
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* Copyright (C) 2009 Yoichi Yuasa <yuasa@linux-mips.org>
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*
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* based on code for MX31ADS,
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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*/
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/serial_8250.h>
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#include <linux/smsc911x.h>
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#include <linux/types.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/irq.h>
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#include <asm/mach-types.h>
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#include <asm/memory.h>
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#include <asm/setup.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/irq.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include "common.h"
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#include "devices-imx31.h"
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#include "hardware.h"
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#include "iomux-mx3.h"
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#define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \
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IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \
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IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \
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MX31_IO_ADDRESS(x))
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/*
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* KZM-ARM11-01 Board Control Registers on FPGA
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*/
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#define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000)
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#define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001)
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#define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002)
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#define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004)
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#define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008)
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#define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010)
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#define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020)
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#define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003)
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/*
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* External UART for touch panel on FPGA
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*/
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#define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050)
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#if IS_ENABLED(CONFIG_SERIAL_8250)
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/*
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* KZM-ARM11-01 has an external UART on FPGA
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*/
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static struct plat_serial8250_port serial_platform_data[] = {
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{
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.membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550),
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.mapbase = KZM_ARM11_16550,
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/* irq number is run-time assigned */
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.irqflags = IRQ_TYPE_EDGE_RISING,
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.uartclk = 14745600,
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.regshift = 0,
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.iotype = UPIO_MEM,
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
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UPF_BUGGY_UART,
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},
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{},
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};
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static struct resource serial8250_resources[] = {
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{
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.start = KZM_ARM11_16550,
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.end = KZM_ARM11_16550 + 0x10,
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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,
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},
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};
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static struct platform_device serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = serial_platform_data,
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},
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.num_resources = ARRAY_SIZE(serial8250_resources),
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.resource = serial8250_resources,
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};
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static int __init kzm_init_ext_uart(void)
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{
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u8 tmp;
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/*
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* GPIO 1-1: external UART interrupt line
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*/
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mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO));
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gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int");
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gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
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/*
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* Unmask UART interrupt
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*/
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tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
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tmp |= 0x2;
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__raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
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serial_platform_data[0].irq =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
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serial8250_resources[1].start =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
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serial8250_resources[1].end =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
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return platform_device_register(&serial_device);
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}
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#else
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static inline int kzm_init_ext_uart(void)
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{
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return 0;
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}
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#endif
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/*
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* SMSC LAN9118
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*/
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#if IS_ENABLED(CONFIG_SMSC911X)
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static struct smsc911x_platform_config kzm_smsc9118_config = {
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.phy_interface = PHY_INTERFACE_MODE_MII,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
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};
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static struct resource kzm_smsc9118_resources[] = {
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{
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.start = MX31_CS5_BASE_ADDR,
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.end = MX31_CS5_BASE_ADDR + SZ_128K - 1,
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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 | IORESOURCE_IRQ_HIGHEDGE,
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},
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};
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static struct platform_device kzm_smsc9118_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(kzm_smsc9118_resources),
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.resource = kzm_smsc9118_resources,
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.dev = {
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.platform_data = &kzm_smsc9118_config,
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},
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};
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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 int __init kzm_init_smsc9118(void)
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{
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/*
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* GPIO 1-2: SMSC9118 interrupt line
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*/
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mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO));
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gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int");
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gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
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regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
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kzm_smsc9118_resources[1].start =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
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kzm_smsc9118_resources[1].end =
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gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
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return platform_device_register(&kzm_smsc9118_device);
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}
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#else
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static inline int kzm_init_smsc9118(void)
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{
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return 0;
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}
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#endif
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#if IS_ENABLED(CONFIG_SERIAL_IMX)
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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 void __init kzm_init_imx_uart(void)
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{
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imx31_add_imx_uart0(&uart_pdata);
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imx31_add_imx_uart1(&uart_pdata);
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}
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#else
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static inline void kzm_init_imx_uart(void)
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{
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}
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#endif
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static int kzm_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_DCD_DCE1__DCD_DCE1,
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MX31_PIN_RI_DCE1__RI_DCE1,
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MX31_PIN_DSR_DCE1__DSR_DCE1,
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MX31_PIN_DTR_DCE1__DTR_DCE1,
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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_DCD_DTE1__DCD_DTE2,
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MX31_PIN_RI_DTE1__RI_DTE2,
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MX31_PIN_DSR_DTE1__DSR_DTE2,
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MX31_PIN_DTR_DTE1__DTR_DTE2,
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};
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/*
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* Board specific initialization.
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*/
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static void __init kzm_board_init(void)
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{
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imx31_soc_init();
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mxc_iomux_setup_multiple_pins(kzm_pins,
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ARRAY_SIZE(kzm_pins), "kzm");
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kzm_init_imx_uart();
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pr_info("Clock input source is 26MHz\n");
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}
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static void __init kzm_late_init(void)
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{
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kzm_init_ext_uart();
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kzm_init_smsc9118();
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}
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/*
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* This structure defines static mappings for the kzm-arm11-01 board.
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*/
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static struct map_desc kzm_io_desc[] __initdata = {
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{
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.virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
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.length = MX31_CS4_SIZE,
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.type = MT_DEVICE
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},
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{
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.virtual = (unsigned long)MX31_CS5_BASE_ADDR_VIRT,
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.pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR),
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.length = MX31_CS5_SIZE,
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.type = MT_DEVICE
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},
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};
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/*
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* Set up static virtual mappings.
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*/
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static void __init kzm_map_io(void)
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{
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mx31_map_io();
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iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc));
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}
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static void __init kzm_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(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
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.atag_offset = 0x100,
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.map_io = kzm_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 = kzm_timer_init,
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.init_machine = kzm_board_init,
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.init_late = kzm_late_init,
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.restart = mxc_restart,
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MACHINE_END
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