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98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* linux/arch/mips/jz4740/common/setup.c
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*
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* JZ4740 common setup routines.
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*
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* Copyright (C) 2006 Ingenic Semiconductor Inc.
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*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/ioport.h>
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <linux/serial_8250.h>
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#include <asm/cpu.h>
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#include <asm/bootinfo.h>
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#include <asm/irq.h>
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#include <asm/mipsregs.h>
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#include <asm/reboot.h>
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#include <asm/pgtable.h>
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#include <asm/time.h>
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#include <asm/mach-jz4740/jz4740.h>
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#include <asm/mach-jz4740/regs.h>
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#include <asm/mach-jz4740/clock.h>
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#include <asm/mach-jz4740/serial.h>
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#include "clock.h"
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extern char *__init prom_getcmdline(void);
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extern void jz_restart(char *);
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extern void jz_halt(void);
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extern void jz_power_off(void);
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static void __init jz_serial_setup(void)
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{
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#ifdef CONFIG_SERIAL_8250
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struct uart_port s;
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REG8(UART0_FCR) |= UARTFCR_UUE; /* enable UART module */
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memset(&s, 0, sizeof(s));
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s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
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s.iotype = SERIAL_IO_MEM;
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s.regshift = 2;
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s.uartclk = jz4740_clock_bdata.ext_rate;
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s.line = 0;
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s.membase = (u8 *)UART0_BASE;
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s.irq = JZ_IRQ_UART0;
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if (early_serial_setup(&s) != 0) {
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printk(KERN_ERR "Serial ttyS0 setup failed!\n");
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}
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s.line = 1;
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s.membase = (u8 *)UART1_BASE;
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s.irq = JZ_IRQ_UART1;
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if (early_serial_setup(&s) != 0) {
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printk(KERN_ERR "Serial ttyS1 setup failed!\n");
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}
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#endif
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}
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void __init plat_mem_setup(void)
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{
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char *argptr;
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argptr = prom_getcmdline();
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/* IO/MEM resources. Which will be the addtion value in `inX' and
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* `outX' macros defined in asm/io.h */
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set_io_port_base(0);
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ioport_resource.start = 0x00000000;
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ioport_resource.end = 0xffffffff;
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iomem_resource.start = 0x00000000;
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iomem_resource.end = 0xffffffff;
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_machine_restart = jz_restart;
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_machine_halt = jz_halt;
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pm_power_off = jz_power_off;
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jz_serial_setup();
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}
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