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/*
* 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 <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 <mach/clock.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include "devices-imx31.h"
#include "devices.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 defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
/*
* 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 = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1),
.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,
},
{
.start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1),
.end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1),
.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));
return platform_device_register(&serial_device);
}
#else
static inline int kzm_init_ext_uart(void)
{
return 0;
}
#endif
/*
* SMSC LAN9118
*/
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
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,
},
{
.start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2),
.end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2),
.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 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));
return platform_device_register(&kzm_smsc9118_device);
}
#else
static inline int kzm_init_smsc9118(void)
{
return 0;
}
#endif
#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
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)
{
mxc_iomux_setup_multiple_pins(kzm_pins,
ARRAY_SIZE(kzm_pins), "kzm");
kzm_init_ext_uart();
kzm_init_smsc9118();
kzm_init_imx_uart();
pr_info("Clock input source is 26MHz\n");
}
/*
* This structure defines static mappings for the kzm-arm11-01 board.
*/
static struct map_desc kzm_io_desc[] __initdata = {
{
.virtual = MX31_CS4_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
.length = MX31_CS4_SIZE,
.type = MT_DEVICE
},
{
.virtual = 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);
}
static struct sys_timer kzm_timer = {
.init = kzm_timer_init,
};
/*
* The following uses standard kernel macros define in arch.h in order to
* initialize __mach_desc_KZM_ARM11_01 data structure.
*/
MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
.boot_params = MX3x_PHYS_OFFSET + 0x100,
.map_io = kzm_map_io,
.init_irq = mx31_init_irq,
.init_machine = kzm_board_init,
.timer = &kzm_timer,
MACHINE_END
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