301 строка
7.4 KiB
C
301 строка
7.4 KiB
C
/*
|
|
* KZM-ARM11-01 support
|
|
* Copyright (C) 2009 Yoichi Yuasa <yuasa@linux-mips.org>
|
|
*
|
|
* based on code for MX31ADS,
|
|
* Copyright (C) 2000 Deep Blue Solutions Ltd
|
|
* Copyright (C) 2002 Shane Nay (shane@minirl.com)
|
|
* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/serial_8250.h>
|
|
#include <linux/smsc911x.h>
|
|
#include <linux/types.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/fixed.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/memory.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/time.h>
|
|
|
|
#include "common.h"
|
|
#include "devices-imx31.h"
|
|
#include "hardware.h"
|
|
#include "iomux-mx3.h"
|
|
|
|
#define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \
|
|
IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \
|
|
IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \
|
|
MX31_IO_ADDRESS(x))
|
|
|
|
/*
|
|
* KZM-ARM11-01 Board Control Registers on FPGA
|
|
*/
|
|
#define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000)
|
|
#define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001)
|
|
#define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002)
|
|
#define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004)
|
|
#define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008)
|
|
#define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010)
|
|
#define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020)
|
|
#define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003)
|
|
|
|
/*
|
|
* External UART for touch panel on FPGA
|
|
*/
|
|
#define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050)
|
|
|
|
#if IS_ENABLED(CONFIG_SERIAL_8250)
|
|
/*
|
|
* KZM-ARM11-01 has an external UART on FPGA
|
|
*/
|
|
static struct plat_serial8250_port serial_platform_data[] = {
|
|
{
|
|
.membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550),
|
|
.mapbase = KZM_ARM11_16550,
|
|
/* irq number is run-time assigned */
|
|
.irqflags = IRQ_TYPE_EDGE_RISING,
|
|
.uartclk = 14745600,
|
|
.regshift = 0,
|
|
.iotype = UPIO_MEM,
|
|
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
|
|
UPF_BUGGY_UART,
|
|
},
|
|
{},
|
|
};
|
|
|
|
static struct resource serial8250_resources[] = {
|
|
{
|
|
.start = KZM_ARM11_16550,
|
|
.end = KZM_ARM11_16550 + 0x10,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
/* irq number is run-time assigned */
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device serial_device = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = serial_platform_data,
|
|
},
|
|
.num_resources = ARRAY_SIZE(serial8250_resources),
|
|
.resource = serial8250_resources,
|
|
};
|
|
|
|
static int __init kzm_init_ext_uart(void)
|
|
{
|
|
u8 tmp;
|
|
|
|
/*
|
|
* GPIO 1-1: external UART interrupt line
|
|
*/
|
|
mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO));
|
|
gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int");
|
|
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
|
|
|
|
/*
|
|
* Unmask UART interrupt
|
|
*/
|
|
tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
|
|
tmp |= 0x2;
|
|
__raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
|
|
|
|
serial_platform_data[0].irq =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
|
|
serial8250_resources[1].start =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
|
|
serial8250_resources[1].end =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
|
|
|
|
return platform_device_register(&serial_device);
|
|
}
|
|
#else
|
|
static inline int kzm_init_ext_uart(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* SMSC LAN9118
|
|
*/
|
|
#if IS_ENABLED(CONFIG_SMSC911X)
|
|
static struct smsc911x_platform_config kzm_smsc9118_config = {
|
|
.phy_interface = PHY_INTERFACE_MODE_MII,
|
|
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
|
|
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
|
|
.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
|
|
};
|
|
|
|
static struct resource kzm_smsc9118_resources[] = {
|
|
{
|
|
.start = MX31_CS5_BASE_ADDR,
|
|
.end = MX31_CS5_BASE_ADDR + SZ_128K - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
/* irq number is run-time assigned */
|
|
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
|
|
},
|
|
};
|
|
|
|
static struct platform_device kzm_smsc9118_device = {
|
|
.name = "smsc911x",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(kzm_smsc9118_resources),
|
|
.resource = kzm_smsc9118_resources,
|
|
.dev = {
|
|
.platform_data = &kzm_smsc9118_config,
|
|
},
|
|
};
|
|
|
|
static struct regulator_consumer_supply dummy_supplies[] = {
|
|
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
|
|
REGULATOR_SUPPLY("vddvario", "smsc911x"),
|
|
};
|
|
|
|
static int __init kzm_init_smsc9118(void)
|
|
{
|
|
/*
|
|
* GPIO 1-2: SMSC9118 interrupt line
|
|
*/
|
|
mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO));
|
|
gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int");
|
|
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
|
|
|
|
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
|
|
|
|
kzm_smsc9118_resources[1].start =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
|
|
kzm_smsc9118_resources[1].end =
|
|
gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
|
|
|
|
return platform_device_register(&kzm_smsc9118_device);
|
|
}
|
|
#else
|
|
static inline int kzm_init_smsc9118(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if IS_ENABLED(CONFIG_SERIAL_IMX)
|
|
static const struct imxuart_platform_data uart_pdata __initconst = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
static void __init kzm_init_imx_uart(void)
|
|
{
|
|
imx31_add_imx_uart0(&uart_pdata);
|
|
imx31_add_imx_uart1(&uart_pdata);
|
|
}
|
|
#else
|
|
static inline void kzm_init_imx_uart(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static int kzm_pins[] __initdata = {
|
|
MX31_PIN_CTS1__CTS1,
|
|
MX31_PIN_RTS1__RTS1,
|
|
MX31_PIN_TXD1__TXD1,
|
|
MX31_PIN_RXD1__RXD1,
|
|
MX31_PIN_DCD_DCE1__DCD_DCE1,
|
|
MX31_PIN_RI_DCE1__RI_DCE1,
|
|
MX31_PIN_DSR_DCE1__DSR_DCE1,
|
|
MX31_PIN_DTR_DCE1__DTR_DCE1,
|
|
MX31_PIN_CTS2__CTS2,
|
|
MX31_PIN_RTS2__RTS2,
|
|
MX31_PIN_TXD2__TXD2,
|
|
MX31_PIN_RXD2__RXD2,
|
|
MX31_PIN_DCD_DTE1__DCD_DTE2,
|
|
MX31_PIN_RI_DTE1__RI_DTE2,
|
|
MX31_PIN_DSR_DTE1__DSR_DTE2,
|
|
MX31_PIN_DTR_DTE1__DTR_DTE2,
|
|
};
|
|
|
|
/*
|
|
* Board specific initialization.
|
|
*/
|
|
static void __init kzm_board_init(void)
|
|
{
|
|
imx31_soc_init();
|
|
|
|
mxc_iomux_setup_multiple_pins(kzm_pins,
|
|
ARRAY_SIZE(kzm_pins), "kzm");
|
|
kzm_init_imx_uart();
|
|
|
|
pr_info("Clock input source is 26MHz\n");
|
|
}
|
|
|
|
static void __init kzm_late_init(void)
|
|
{
|
|
kzm_init_ext_uart();
|
|
kzm_init_smsc9118();
|
|
}
|
|
|
|
/*
|
|
* This structure defines static mappings for the kzm-arm11-01 board.
|
|
*/
|
|
static struct map_desc kzm_io_desc[] __initdata = {
|
|
{
|
|
.virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
|
|
.length = MX31_CS4_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
{
|
|
.virtual = (unsigned long)MX31_CS5_BASE_ADDR_VIRT,
|
|
.pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR),
|
|
.length = MX31_CS5_SIZE,
|
|
.type = MT_DEVICE
|
|
},
|
|
};
|
|
|
|
/*
|
|
* Set up static virtual mappings.
|
|
*/
|
|
static void __init kzm_map_io(void)
|
|
{
|
|
mx31_map_io();
|
|
iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc));
|
|
}
|
|
|
|
static void __init kzm_timer_init(void)
|
|
{
|
|
mx31_clocks_init(26000000);
|
|
}
|
|
|
|
MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
|
|
.atag_offset = 0x100,
|
|
.map_io = kzm_map_io,
|
|
.init_early = imx31_init_early,
|
|
.init_irq = mx31_init_irq,
|
|
.init_time = kzm_timer_init,
|
|
.init_machine = kzm_board_init,
|
|
.init_late = kzm_late_init,
|
|
.restart = mxc_restart,
|
|
MACHINE_END
|