diff options
Diffstat (limited to 'arch/sh/boards/cat68701/setup.c')
-rw-r--r-- | arch/sh/boards/cat68701/setup.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/sh/boards/cat68701/setup.c b/arch/sh/boards/cat68701/setup.c new file mode 100644 index 000000000000..ae8a350ade53 --- /dev/null +++ b/arch/sh/boards/cat68701/setup.c @@ -0,0 +1,86 @@ +/* + * linux/arch/sh/boards/cat68701/setup.c + * + * Copyright (C) 2000 Niibe Yutaka + * 2001 Yutaro Ebihara + * + * Setup routines for A-ONE Corp CAT-68701 SH7708 Board + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ + +#include <asm/io.h> +#include <asm/machvec.h> +#include <asm/mach/io.h> +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/sched.h> + +const char *get_system_type(void) +{ + return "CAT-68701"; +} + +#ifdef CONFIG_HEARTBEAT +void heartbeat_cat68701() +{ + static unsigned int cnt = 0, period = 0 , bit = 0; + cnt += 1; + if (cnt < period) { + return; + } + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 + */ + period = 110 - ( (300<<FSHIFT)/ + ((avenrun[0]/5) + (3<<FSHIFT)) ); + + if(bit){ bit=0; }else{ bit=1; } + outw(bit<<15,0x3fe); +} +#endif /* CONFIG_HEARTBEAT */ + +unsigned long cat68701_isa_port2addr(unsigned long offset) +{ + /* CompactFlash (IDE) */ + if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset==0x3f6)) + return 0xba000000 + offset; + + /* INPUT PORT */ + if ((offset >= 0x3fc) && (offset <= 0x3fd)) + return 0xb4007000 + offset; + + /* OUTPUT PORT */ + if ((offset >= 0x3fe) && (offset <= 0x3ff)) + return 0xb4007400 + offset; + + return offset + 0xb4000000; /* other I/O (EREA 5)*/ +} + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_cat68701 __initmv = { + .mv_nr_irqs = 32, + .mv_isa_port2addr = cat68701_isa_port2addr, + .mv_irq_demux = cat68701_irq_demux, + + .mv_init_irq = init_cat68701_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_cat68701, +#endif +}; +ALIAS_MV(cat68701) + +int __init platform_setup(void) +{ + /* dummy read erea5 (CS8900A) */ +} + |