diff options
Diffstat (limited to 'arch/sh/boards/cqreek/setup.c')
-rw-r--r-- | arch/sh/boards/cqreek/setup.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/arch/sh/boards/cqreek/setup.c b/arch/sh/boards/cqreek/setup.c new file mode 100644 index 000000000000..29b537cd6546 --- /dev/null +++ b/arch/sh/boards/cqreek/setup.c @@ -0,0 +1,101 @@ +/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $ + * + * arch/sh/kernel/setup_cqreek.c + * + * Copyright (C) 2000 Niibe Yutaka + * + * CqREEK IDE/ISA Bridge Support. + * + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/irq.h> + +#include <asm/mach/cqreek.h> +#include <asm/machvec.h> +#include <asm/io.h> +#include <asm/io_generic.h> +#include <asm/irq.h> +#include <asm/rtc.h> + +#define IDE_OFFSET 0xA4000000UL +#define ISA_OFFSET 0xA4A00000UL + +const char *get_system_type(void) +{ + return "CqREEK"; +} + +static unsigned long cqreek_port2addr(unsigned long port) +{ + if (0x0000<=port && port<=0x0040) + return IDE_OFFSET + port; + if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6) + return IDE_OFFSET + port; + + return ISA_OFFSET + port; +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_cqreek __initmv = { +#if defined(CONFIG_CPU_SH4) + .mv_nr_irqs = 48, +#elif defined(CONFIG_CPU_SUBTYPE_SH7708) + .mv_nr_irqs = 32, +#elif defined(CONFIG_CPU_SUBTYPE_SH7709) + .mv_nr_irqs = 61, +#endif + + .mv_init_irq = init_cqreek_IRQ, + + .mv_isa_port2addr = cqreek_port2addr, +}; +ALIAS_MV(cqreek) + +/* + * Initialize the board + */ +void __init platform_setup(void) +{ + int i; +/* udelay is not available at setup time yet... */ +#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0) + + if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */ + outw_p(0, BRIDGE_IDE_INTR_LVL); + outw_p(0, BRIDGE_IDE_INTR_MASK); + + outw_p(0, BRIDGE_IDE_CTRL); + DELAY(); + + outw_p(0x8000, BRIDGE_IDE_CTRL); + DELAY(); + + outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */ + outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */ + outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */ + cqreek_has_ide=1; + } + + if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */ + outw_p(0, BRIDGE_ISA_INTR_LVL); + outw_p(0, BRIDGE_ISA_INTR_MASK); + + outw_p(0, BRIDGE_ISA_CTRL); + DELAY(); + outw_p(0x8000, BRIDGE_ISA_CTRL); + DELAY(); + + outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */ + outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */ + outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */ + cqreek_has_isa=1; + } + + printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa); +} + |