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/********************************************************************************
* File Name : linux/arch/arm/plat-aspeed/dev-uart.c
* Author : Ryan chen
*
* Copyright (C) 2012-2020 ASPEED Technology Inc.
* 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
* History :
* 1. 2012/09/15 ryan chen create this file
*
********************************************************************************/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#if defined(CONFIG_COLDFIRE)
#include <asm/sizes.h>
#include <asm/arch/devs.h>
#include <asm/arch/platform.h>
#include <asm/arch/irqs.h>
#else
#include <mach/irqs.h>
#include <mach/platform.h>
#include <mach/hardware.h>
#include <plat/ast-scu.h>
#include <plat/devs.h>
#endif
/* --------------------------------------------------------------------
* UART
* -------------------------------------------------------------------- */
#ifdef CONFIG_SERIAL_8250
static struct plat_serial8250_port ast_uart_data[] = {
{
.mapbase = AST_UART0_BASE,
.irq = IRQ_UART0,
.uartclk = (24*1000000L),
.regshift = 2,
#if defined(CONFIG_COLDFIRE)
.iotype = UPIO_MEM32,
#else
.iotype = UPIO_MEM,
#endif
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#if defined(CONFIG_ARCH_AST1010)
{
.mapbase = AST_UART1_BASE,
.irq = IRQ_UART1,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM32,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
{
.mapbase = AST_UART2_BASE,
.irq = IRQ_UART2,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM32,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#else
//BMC UART 1 ,2 default to LPC
#ifdef CONFIG_ARCH_AST1070
#ifdef AST_UART1_BASE
{
.mapbase = AST_UART1_BASE,
.irq = IRQ_UART1,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#endif
#ifdef AST_UART2_BASE
{
.mapbase = AST_UART2_BASE,
.irq = IRQ_UART2,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#endif
#endif
#ifdef AST_UART1_BASE
{
.mapbase = AST_UART1_BASE,
.membase = (char*)(IO_ADDRESS(AST_UART1_BASE)),
.irq = IRQ_UART1,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#endif
#ifdef AST_UART3_BASE
{
.mapbase = AST_UART3_BASE,
.irq = IRQ_UART3,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#endif
#ifdef AST_UART4_BASE
{
.mapbase = AST_UART4_BASE,
.irq = IRQ_UART4,
.uartclk = (24*1000000L),
.regshift = 2,
.iotype = UPIO_MEM,
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
#endif
#endif
{ },
};
struct platform_device ast_uart_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = ast_uart_data,
},
};
void __init ast_add_device_uart(void)
{
#if defined(CONFIG_ARCH_AST1010)
#else
ast_scu_multi_func_uart(1);
ast_scu_multi_func_uart(3);
ast_scu_multi_func_uart(4);
#endif
platform_device_register(&ast_uart_device);
}
#else
void __init ast_add_device_uart(void) {}
#endif
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