diff options
Diffstat (limited to 'arch/powerpc/sysdev/ppc4xx_msi.h')
| -rwxr-xr-x | arch/powerpc/sysdev/ppc4xx_msi.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_msi.h b/arch/powerpc/sysdev/ppc4xx_msi.h new file mode 100755 index 00000000000..64b2f335068 --- /dev/null +++ b/arch/powerpc/sysdev/ppc4xx_msi.h @@ -0,0 +1,65 @@ +/* + * 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__ */ |