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https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
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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>
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/*
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* arch/sh/boards/titan/setup.c - Setup for Titan
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*
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* Copyright (C) 2006 Jamie Lenehan
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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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 <asm/titan.h>
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#include <asm/io.h>
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static struct ipr_data ipr_irq_table[] = {
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/* IRQ, IPR idx, shift, prio */
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{ TITAN_IRQ_WAN, 3, 12, 8 }, /* eth0 (WAN) */
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{ TITAN_IRQ_LAN, 3, 8, 8 }, /* eth1 (LAN) */
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{ TITAN_IRQ_MPCIA, 3, 4, 8 }, /* mPCI A (top) */
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{ TITAN_IRQ_USB, 3, 0, 8 }, /* mPCI B (bottom), USB */
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};
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static unsigned long ipr_offsets[] = { /* stolen from setup-sh7750.c */
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0xffd00004UL, /* 0: IPRA */
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0xffd00008UL, /* 1: IPRB */
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0xffd0000cUL, /* 2: IPRC */
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0xffd00010UL, /* 3: 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-titan",
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},
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};
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static void __init init_titan_irq(void)
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{
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/* enable individual interrupt mode for externals */
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ipr_irq_enable_irlm();
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/* register ipr irqs */
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register_ipr_controller(&ipr_irq_desc);
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}
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static struct sh_machine_vector mv_titan __initmv = {
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.mv_name = "Titan",
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.mv_inb = titan_inb,
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.mv_inw = titan_inw,
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.mv_inl = titan_inl,
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.mv_outb = titan_outb,
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.mv_outw = titan_outw,
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.mv_outl = titan_outl,
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.mv_inb_p = titan_inb_p,
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.mv_inw_p = titan_inw,
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.mv_inl_p = titan_inl,
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.mv_outb_p = titan_outb_p,
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.mv_outw_p = titan_outw,
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.mv_outl_p = titan_outl,
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.mv_insl = titan_insl,
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.mv_outsl = titan_outsl,
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.mv_ioport_map = titan_ioport_map,
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.mv_init_irq = init_titan_irq,
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};
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