diff options
Diffstat (limited to 'arch/sh/boards/se/7300/irq.c')
| -rw-r--r-- | arch/sh/boards/se/7300/irq.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/sh/boards/se/7300/irq.c b/arch/sh/boards/se/7300/irq.c new file mode 100644 index 000000000000..96c8c23d6c93 --- /dev/null +++ b/arch/sh/boards/se/7300/irq.c @@ -0,0 +1,37 @@ +/* + * linux/arch/sh/boards/se/7300/irq.c + * + * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp> + * + * SH-Mobile SolutionEngine 7300 Support. + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/mach/se7300.h> + +/* + * Initialize IRQ setting + */ +void __init +init_7300se_IRQ(void) +{ + ctrl_outw(0x0028, PA_EPLD_MODESET); /* mode set IRQ0,1 active low. */ + ctrl_outw(0xa000, INTC_ICR1); /* IRQ mode; IRQ0,1 enable. */ + ctrl_outw(0x0000, PORT_PFCR); /* use F for IRQ[3:0] and SIU. */ + + /* PC_IRQ[0-3] -> IRQ0 (32) */ + make_ipr_irq(IRQ0_IRQ, IRQ0_IPR_ADDR, IRQ0_IPR_POS, 0x0f - IRQ0_IRQ); + /* A_IRQ[0-3] -> IRQ1 (33) */ + make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, 0x0f - IRQ1_IRQ); + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(VIO_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + + ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ +} |