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https://github.com/edk2-porting/linux-next.git
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b9f0f1bb2b
This converts ipic code to Benh's IRQ mods. For the IPIC, IRQ sense values in the device tree equal those in include/linux/irq.h; that's 8 for low assertion (most internal IRQs on mpc83xx), and 2 for high-to-low change. spinlocks added to [un]mask, ack operations; default handler and type now set in host_map; and redundant condition check eliminated. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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* IPIC private definitions and structure.
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*
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* Maintainer: Kumar Gala <galak@kernel.crashing.org>
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*
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* Copyright 2005 Freescale Semiconductor, Inc
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __IPIC_H__
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#define __IPIC_H__
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#include <asm/ipic.h>
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#define NR_IPIC_INTS 128
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/* External IRQS */
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#define IPIC_IRQ_EXT0 48
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#define IPIC_IRQ_EXT1 17
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#define IPIC_IRQ_EXT7 23
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/* Default Priority Registers */
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#define IPIC_SIPRR_A_DEFAULT 0x05309770
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#define IPIC_SIPRR_D_DEFAULT 0x05309770
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#define IPIC_SMPRR_A_DEFAULT 0x05309770
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#define IPIC_SMPRR_B_DEFAULT 0x05309770
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/* System Global Interrupt Configuration Register */
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#define SICFR_IPSA 0x00010000
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#define SICFR_IPSD 0x00080000
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#define SICFR_MPSA 0x00200000
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#define SICFR_MPSB 0x00400000
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/* System External Interrupt Mask Register */
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#define SEMSR_SIRQ0 0x00008000
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/* System Error Control Register */
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#define SERCR_MCPR 0x00000001
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struct ipic {
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volatile u32 __iomem *regs;
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/* The remapper for this IPIC */
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struct irq_host *irqhost;
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/* The "linux" controller struct */
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struct irq_chip hc_irq;
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/* The device node of the interrupt controller */
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struct device_node *of_node;
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};
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struct ipic_info {
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u8 pend; /* pending register offset from base */
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u8 mask; /* mask register offset from base */
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u8 prio; /* priority register offset from base */
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u8 force; /* force register offset from base */
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u8 bit; /* register bit position (as per doc)
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bit mask = 1 << (31 - bit) */
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u8 prio_mask; /* priority mask value */
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};
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#endif /* __IPIC_H__ */
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