68abdbbb03
This patch reworks the ipr code by grouping the offset array together with the ipr_data structure in a new data structure called ipr_desc. This new structure also contains the name of the controller in struct irq_chip. The idea behind putting struct irq_chip in there is that we can use offsetof() to locate the base addresses in the irq_chip callbacks. This strategy has much in common with the recently merged intc2 code. One logic change has been made - the original ipr code enabled the interrupts by default but with this patch they are all disabled by default. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/*
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* linux/arch/sh/boards/sh03/setup.c
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*
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* Copyright (C) 2004 Interface Co.,Ltd. Saito.K
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*
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/pci.h>
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#include <linux/platform_device.h>
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#include <asm/io.h>
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#include <asm/rtc.h>
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#include <asm/sh03/io.h>
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#include <asm/sh03/sh03.h>
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#include <asm/addrspace.h>
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static struct ipr_data ipr_irq_table[] = {
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{ IRL0_IRQ, 0, IRL0_IPR_POS, IRL0_PRIORITY },
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{ IRL1_IRQ, 0, IRL1_IPR_POS, IRL1_PRIORITY },
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{ IRL2_IRQ, 0, IRL2_IPR_POS, IRL2_PRIORITY },
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{ IRL3_IRQ, 0, IRL3_IPR_POS, IRL3_PRIORITY },
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};
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static unsigned long ipr_offsets[] = {
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INTC_IPRD,
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};
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static struct ipr_desc ipr_irq_desc = {
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.ipr_offsets = ipr_offsets,
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.nr_offsets = ARRAY_SIZE(ipr_offsets),
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.ipr_data = ipr_irq_table,
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.nr_irqs = ARRAY_SIZE(ipr_irq_table),
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.chip = {
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.name = "IPR-sh03",
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},
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};
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static void __init init_sh03_IRQ(void)
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{
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ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
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register_ipr_controller(&ipr_irq_desc);
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}
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extern void *cf_io_base;
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static void __iomem *sh03_ioport_map(unsigned long port, unsigned int size)
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{
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if (PXSEG(port))
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return (void __iomem *)port;
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/* CompactFlash (IDE) */
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if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6))
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return (void __iomem *)((unsigned long)cf_io_base + port);
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return (void __iomem *)(port + PCI_IO_BASE);
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}
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/* arch/sh/boards/sh03/rtc.c */
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void sh03_time_init(void);
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static void __init sh03_setup(char **cmdline_p)
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{
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board_time_init = sh03_time_init;
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}
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static struct resource heartbeat_resources[] = {
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[0] = {
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.start = 0xa0800000,
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.end = 0xa0800000 + 8 - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device heartbeat_device = {
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.name = "heartbeat",
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.id = -1,
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.num_resources = ARRAY_SIZE(heartbeat_resources),
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.resource = heartbeat_resources,
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};
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static struct platform_device *sh03_devices[] __initdata = {
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&heartbeat_device,
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};
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static int __init sh03_devices_setup(void)
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{
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return platform_add_devices(sh03_devices, ARRAY_SIZE(sh03_devices));
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}
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__initcall(sh03_devices_setup);
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static struct sh_machine_vector mv_sh03 __initmv = {
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.mv_name = "Interface (CTP/PCI-SH03)",
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.mv_setup = sh03_setup,
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.mv_nr_irqs = 48,
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.mv_ioport_map = sh03_ioport_map,
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.mv_init_irq = init_sh03_IRQ,
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};
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