9865853851
Add QUICC Engine (QE) configuration, header files, and QE management and library code that are used by QE devices drivers. Includes Leo's modifications up to, and including, the platform_device to of_device adaptation: "The series of patches add generic QE infrastructure called qe_lib, and MPC8360EMDS board support. Qe_lib is used by QE device drivers such as ucc_geth driver. This version updates QE interrupt controller to use new irq mapping mechanism, addresses all the comments received with last submission and includes some style fixes. v2: Change to use device tree for BCSR and MURAM; Remove I/O port interrupt handling code as it is not generic enough. v3: Address comments from Kumar; Update definition of several device tree nodes; Copyright style change." In addition, the following changes have been made: o removed typedefs o uint -> u32 conversions o removed following defines: QE_SIZEOF_BD, BD_BUFFER_ARG, BD_BUFFER_CLEAR, BD_BUFFER, BD_STATUS_AND_LENGTH_SET, BD_STATUS_AND_LENGTH, and BD_BUFFER_SET because they hid sizeof/in_be32/out_be32 operations from the reader. o fixed qe_snums_init() serial num assignment to use a const array o made CONFIG_UCC_FAST select UCC_SLOW o reduced NR_QE_IC_INTS from 128 to 64 o remove _IO_BASE, etc. defines (not used) o removed irrelevant comments, added others to resemble removed BD_ defines o realigned struct definitions in headers o various other style fixes including things like pinMask -> pin_mask o fixed a ton of whitespace issues o marked ioregs as __be32/__be16 o removed platform_device code and redundant get_qe_base() o removed redundant comments o added cpu_relax() to qe_reset o uncasted all get_property() assignments o eliminated unneeded casts o eliminated immrbar_phys_to_virt (not used) Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Shlomi Gridish <gridish@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/*
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* arch/powerpc/sysdev/qe_lib/qe_ic.h
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*
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* QUICC ENGINE Interrupt Controller Header
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*
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* Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
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*
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* Author: Li Yang <leoli@freescale.com>
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* Based on code from Shlomi Gridish <gridish@freescale.com>
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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 _POWERPC_SYSDEV_QE_IC_H
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#define _POWERPC_SYSDEV_QE_IC_H
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#include <asm/qe_ic.h>
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#define NR_QE_IC_INTS 64
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/* QE IC registers offset */
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#define QEIC_CICR 0x00
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#define QEIC_CIVEC 0x04
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#define QEIC_CRIPNR 0x08
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#define QEIC_CIPNR 0x0c
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#define QEIC_CIPXCC 0x10
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#define QEIC_CIPYCC 0x14
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#define QEIC_CIPWCC 0x18
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#define QEIC_CIPZCC 0x1c
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#define QEIC_CIMR 0x20
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#define QEIC_CRIMR 0x24
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#define QEIC_CICNR 0x28
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#define QEIC_CIPRTA 0x30
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#define QEIC_CIPRTB 0x34
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#define QEIC_CRICR 0x3c
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#define QEIC_CHIVEC 0x60
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/* Interrupt priority registers */
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#define CIPCC_SHIFT_PRI0 29
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#define CIPCC_SHIFT_PRI1 26
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#define CIPCC_SHIFT_PRI2 23
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#define CIPCC_SHIFT_PRI3 20
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#define CIPCC_SHIFT_PRI4 13
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#define CIPCC_SHIFT_PRI5 10
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#define CIPCC_SHIFT_PRI6 7
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#define CIPCC_SHIFT_PRI7 4
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/* CICR priority modes */
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#define CICR_GWCC 0x00040000
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#define CICR_GXCC 0x00020000
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#define CICR_GYCC 0x00010000
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#define CICR_GZCC 0x00080000
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#define CICR_GRTA 0x00200000
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#define CICR_GRTB 0x00400000
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#define CICR_HPIT_SHIFT 8
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#define CICR_HPIT_MASK 0x00000300
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#define CICR_HP_SHIFT 24
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#define CICR_HP_MASK 0x3f000000
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/* CICNR */
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#define CICNR_WCC1T_SHIFT 20
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#define CICNR_ZCC1T_SHIFT 28
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#define CICNR_YCC1T_SHIFT 12
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#define CICNR_XCC1T_SHIFT 4
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/* CRICR */
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#define CRICR_RTA1T_SHIFT 20
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#define CRICR_RTB1T_SHIFT 28
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/* Signal indicator */
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#define SIGNAL_MASK 3
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#define SIGNAL_HIGH 2
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#define SIGNAL_LOW 0
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struct qe_ic {
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/* Control registers offset */
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volatile u32 __iomem *regs;
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/* The remapper for this QEIC */
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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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/* VIRQ numbers of QE high/low irqs */
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unsigned int virq_high;
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unsigned int virq_low;
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};
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/*
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* QE interrupt controller internal structure
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*/
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struct qe_ic_info {
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u32 mask; /* location of this source at the QIMR register. */
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u32 mask_reg; /* Mask register offset */
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u8 pri_code; /* for grouped interrupts sources - the interrupt
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code as appears at the group priority register */
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u32 pri_reg; /* Group priority register offset */
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};
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#endif /* _POWERPC_SYSDEV_QE_IC_H */
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