diff options
Diffstat (limited to 'target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c')
| -rw-r--r-- | target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c new file mode 100644 index 0000000..3f12e2e --- /dev/null +++ b/target/linux/xburst/files-2.6.32/arch/mips/jz4740/setup.c @@ -0,0 +1,108 @@ +/* + * linux/arch/mips/jz4740/common/setup.c + * + * JZ4740 common setup routines. + * + * Copyright (C) 2006 Ingenic Semiconductor Inc. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope 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/init.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/serial_8250.h> + +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/mipsregs.h> +#include <asm/reboot.h> +#include <asm/pgtable.h> +#include <asm/time.h> +#include <asm/mach-jz4740/jz4740.h> +#include <asm/mach-jz4740/regs.h> +#include <asm/mach-jz4740/clock.h> +#include <asm/mach-jz4740/serial.h> + +extern char *__init prom_getcmdline(void); +extern void __init jz_board_setup(void); +extern void jz_restart(char *); +extern void jz_halt(void); +extern void jz_power_off(void); +extern void jz_time_init(void); + +static void __init soc_cpm_setup(void) +{ + /* Enable CKO to external memory */ + __cpm_enable_cko(); + + /* CPU enters IDLE mode when executing 'wait' instruction */ + __cpm_idle_mode(); +} + + +static void __init jz_serial_setup(void) +{ +#ifdef CONFIG_SERIAL_8250 + struct uart_port s; + REG8(UART0_FCR) |= UARTFCR_UUE; /* enable UART module */ + memset(&s, 0, sizeof(s)); + s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; + s.iotype = SERIAL_IO_MEM; + s.regshift = 2; + s.uartclk = JZ_EXTAL; + + s.line = 0; + s.membase = (u8 *)UART0_BASE; + s.irq = JZ_IRQ_UART0; + if (early_serial_setup(&s) != 0) { + printk(KERN_ERR "Serial ttyS0 setup failed!\n"); + } + + s.line = 1; + s.membase = (u8 *)UART1_BASE; + s.irq = JZ_IRQ_UART1; + if (early_serial_setup(&s) != 0) { + printk(KERN_ERR "Serial ttyS1 setup failed!\n"); + } +#endif +} + +void __init plat_mem_setup(void) +{ + char *argptr; + + argptr = prom_getcmdline(); + + /* IO/MEM resources. Which will be the addtion value in `inX' and + * `outX' macros defined in asm/io.h */ + set_io_port_base(0); + ioport_resource.start = 0x00000000; + ioport_resource.end = 0xffffffff; + iomem_resource.start = 0x00000000; + iomem_resource.end = 0xffffffff; + + _machine_restart = jz_restart; + _machine_halt = jz_halt; + pm_power_off = jz_power_off; + soc_cpm_setup(); + jz_serial_setup(); +} + |