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Diffstat (limited to 'arch/sh/boards/ec3104/setup.c')
-rw-r--r-- | arch/sh/boards/ec3104/setup.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/sh/boards/ec3104/setup.c b/arch/sh/boards/ec3104/setup.c new file mode 100644 index 000000000000..5130ba2b6ff1 --- /dev/null +++ b/arch/sh/boards/ec3104/setup.c @@ -0,0 +1,78 @@ +/* + * linux/arch/sh/boards/ec3104/setup.c + * EC3104 companion chip support + * + * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> + * + */ +/* EC3104 note: + * This code was written without any documentation about the EC3104 chip. While + * I hope I got most of the basic functionality right, the register names I use + * are most likely completely different from those in the chip documentation. + * + * If you have any further information about the EC3104, please tell me + * (prumpf@tux.org). + */ + +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/types.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/machvec.h> +#include <asm/mach/ec3104.h> + +const char *get_system_type(void) +{ + return "EC3104"; +} + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_ec3104 __initmv = { + .mv_nr_irqs = 96, + + .mv_inb = ec3104_inb, + .mv_inw = ec3104_inw, + .mv_inl = ec3104_inl, + .mv_outb = ec3104_outb, + .mv_outw = ec3104_outw, + .mv_outl = ec3104_outl, + + .mv_irq_demux = ec3104_irq_demux, +}; + +ALIAS_MV(ec3104) + +int __init platform_setup(void) +{ + char str[8]; + int i; + + if (0) + return 0; + + for (i=0; i<8; i++) + str[i] = ctrl_readb(EC3104_BASE + i); + + for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++) + irq_desc[i].handler = &ec3104_int; + + printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n", + str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE); + + + /* mask all interrupts. this should have been done by the boot + * loader for us but we want to be sure ... */ + ctrl_writel(0xffffffff, EC3104_IMR); + + return 0; +} + |