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/*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/board-mx31ads.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
/*!
* @file mx31ads.c
*
* @brief This file contains the board-specific initialization routines.
*
* @ingroup System
*/
#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
/*!
* The serial port definition structure.
*/
static struct plat_serial8250_port serial_platform_data[] = {
{
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA),
.mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTA),
.irq = EXPIO_INT_XUART_INTA,
.uartclk = 14745600,
.regshift = 0,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
}, {
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB),
.mapbase = (unsigned long)(CS4_BASE_ADDR + PBC_SC16C652_UARTB),
.irq = EXPIO_INT_XUART_INTB,
.uartclk = 14745600,
.regshift = 0,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
},
{},
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = 0,
.dev = {
.platform_data = serial_platform_data,
},
};
static int __init mxc_init_extuart(void)
{
return platform_device_register(&serial_device);
}
#else
static inline int mxc_init_extuart(void)
{
return 0;
}
#endif
#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
static struct imxuart_platform_data uart_pdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
static inline void mxc_init_imx_uart(void)
{
mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
mxc_register_device(&mxc_uart_device0, &uart_pdata);
}
#else /* !SERIAL_IMX */
static inline void mxc_init_imx_uart(void)
{
}
#endif /* !SERIAL_IMX */
/*!
* This structure defines static mappings for the i.MX31ADS board.
*/
static struct map_desc mx31ads_io_desc[] __initdata = {
{
.virtual = AIPS1_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
.length = AIPS1_SIZE,
.type = MT_NONSHARED_DEVICE
}, {
.virtual = SPBA0_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(SPBA0_BASE_ADDR),
.length = SPBA0_SIZE,
.type = MT_NONSHARED_DEVICE
}, {
.virtual = AIPS2_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
.length = AIPS2_SIZE,
.type = MT_NONSHARED_DEVICE
}, {
.virtual = CS4_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(CS4_BASE_ADDR),
.length = CS4_SIZE / 2,
.type = MT_DEVICE
},
};
/*!
* Set up static virtual mappings.
*/
void __init mx31ads_map_io(void)
{
mxc_map_io();
iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc));
}
/*!
* Board specific initialization.
*/
static void __init mxc_board_init(void)
{
mxc_init_extuart();
mxc_init_imx_uart();
}
static void __init mx31ads_timer_init(void)
{
mxc_clocks_init(26000000);
mxc_timer_init("ipg_clk.0");
}
struct sys_timer mx31ads_timer = {
.init = mx31ads_timer_init,
};
/*
* The following uses standard kernel macros defined in arch.h in order to
* initialize __mach_desc_MX31ADS data structure.
*/
MACHINE_START(MX31ADS, "Freescale MX31ADS")
/* Maintainer: Freescale Semiconductor, Inc. */
.phys_io = AIPS1_BASE_ADDR,
.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x100,
.map_io = mx31ads_map_io,
.init_irq = mxc_init_irq,
.init_machine = mxc_board_init,
.timer = &mx31ads_timer,
MACHINE_END
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