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/*
* Copyright (C) 2009 Applied Micro Circuits Corporation.
*
* Author: Tirumala Marri <tmarri@amcc.com>
* Feng Kan <fkan@amcc.com>
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2 of the
* License.
*/
#ifndef __PPC4XX_MSI_H__
#define __PPC4XX_MSI_H__
#include <asm/msi_bitmap.h>
#define PEIH_TERMADH 0x00
#define PEIH_TERMADL 0x08
#define PEIH_MSIED 0x10
#define PEIH_MSIMK 0x18
#define PEIH_MSIASS 0x20
#define PEIH_FLUSH0 0x30
#define PEIH_FLUSH1 0x38
#define PEIH_CNTRST 0x48
#define PE_IHS1_OFF 0x00
#define PE_IHS2_OFF 0x01
/* Adjust pattern for PCIE MSI*/
#define MSI_DATA_PATTERN 0x00004440
#define MSI_MASK_PATTERN 0x0000ffe0
#define PE_IHS2_BREV_EN 0x02
#define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL))
#define U64_TO_U32_HIGH(val) ((u32)((val) >> 32))
#ifdef CONFIG_PHYS_64BIT
#define RES_TO_U32_LOW(val) U64_TO_U32_LOW(val)
#define RES_TO_U32_HIGH(val) U64_TO_U32_HIGH(val)
#else
#define RES_TO_U32_LOW(val) (val)
#define RES_TO_U32_HIGH(val) (0)
#endif
struct ppc4xx_msi {
struct irq_host *irqhost;
unsigned long cascade_irq;
u32 msi_addr_lo;
u32 msi_addr_hi;
void __iomem *msi_regs;
u32 feature;
struct msi_bitmap bitmap;
u32 sdr_base;
};
#ifdef CONFIG_405EX
#define NR_MSI_IRQS 14
#elif defined(CONFIG_460EX) || defined (CONFIG_460SX)
#define NR_MSI_IRQS 4
#elif defined (CONFIG_APM82181)
#define NR_MSI_IRQS 8
#endif
#endif /* __PPC4XX_MSI_H__ */
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