/* * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access * * This file is based on: * * Marvel / EV7 System Programmer's Manual * Revision 1.00 * 14 May 2001 */ #ifndef __ALPHA_MARVEL__H__ #define __ALPHA_MARVEL__H__ #include <linux/types.h> #include <linux/pci.h> #include <linux/spinlock.h> #include <asm/compiler.h> #define MARVEL_MAX_PIDS 32 /* as long as we rely on 43-bit superpage */ #define MARVEL_IRQ_VEC_PE_SHIFT (10) #define MARVEL_IRQ_VEC_IRQ_MASK ((1 << MARVEL_IRQ_VEC_PE_SHIFT) - 1) #define MARVEL_NR_IRQS \ (16 + (MARVEL_MAX_PIDS * (1 << MARVEL_IRQ_VEC_PE_SHIFT))) /* * EV7 RBOX Registers */ typedef struct { volatile unsigned long csr __attribute__((aligned(16))); } ev7_csr; typedef struct { ev7_csr RBOX_CFG; /* 0x0000 */ ev7_csr RBOX_NSVC; ev7_csr RBOX_EWVC; ev7_csr RBOX_WHAMI; ev7_csr RBOX_TCTL; /* 0x0040 */ ev7_csr RBOX_INT; ev7_csr RBOX_IMASK; ev7_csr RBOX_IREQ; ev7_csr RBOX_INTQ; /* 0x0080 */ ev7_csr RBOX_INTA; ev7_csr RBOX_IT; ev7_csr RBOX_SCRATCH1; ev7_csr RBOX_SCRATCH2; /* 0x00c0 */ ev7_csr RBOX_L_ERR; } ev7_csrs; /* * EV7 CSR addressing macros */ #define EV7_MASK40(addr) ((addr) & ((1UL << 41) - 1)) #define EV7_KERN_ADDR(addr) ((void *)(IDENT_ADDR | EV7_MASK40(addr))) #define EV7_PE_MASK 0x1ffUL /* 9 bits ( 256 + mem/io ) */ #define EV7_IPE(pe) ((~((long)(pe)) & EV7_PE_MASK) << 35) #define EV7_CSR_PHYS(pe, off) (EV7_IPE(pe) | (0x7FFCUL << 20) | (off)) #define EV7_CSRS_PHYS(pe) (EV7_CSR_PHYS(pe, 0UL)) #define EV7_CSR_KERN(pe, off) (EV7_KERN_ADDR(EV7_CSR_PHYS(pe, off))) #define EV7_CSRS_KERN(pe) (EV7_KERN_ADDR(EV7_CSRS_PHYS(pe))) #define EV7_CSR_OFFSET(name) ((unsigned long)&((ev7_csrs *)NULL)->name.csr) /* * IO7 registers */ typedef struct { volatile unsigned long csr __attribute__((aligned(64))); } io7_csr; typedef struct { /* I/O Port Control Registers */ io7_csr POx_CTRL; /* 0x0000 */ io7_csr POx_CACHE_CTL; io7_csr POx_TIMER; io7_csr POx_IO_ADR_EXT; io7_csr POx_MEM_ADR_EXT; /* 0x0100 */ io7_csr POx_XCAL_CTRL; io7_csr rsvd1[2]; /* ?? spec doesn't show 0x180 */ io7_csr POx_DM_SOURCE; /* 0x0200 */ io7_csr POx_DM_DEST; io7_csr POx_DM_SIZE; io7_csr POx_DM_CTRL; io7_csr rsvd2[4]; /* 0x0300 */ /* AGP Control Registers -- port 3 only */ io7_csr AGP_CAP_ID; /* 0x0400 */ io7_csr AGP_STAT; io7_csr AGP_CMD; io7_csr rsvd3; /* I/O Port Monitor Registers */ io7_csr POx_MONCTL; /* 0x0500 */ io7_csr POx_CTRA; io7_csr POx_CTRB; io7_csr POx_CTR56; io7_csr POx_SCRATCH; /* 0x0600 */ io7_csr POx_XTRA_A; io7_csr POx_XTRA_TS; io7_csr POx_XTRA_Z; io7_csr rsvd4; /* 0x0700 */ io7_csr POx_THRESHA; io7_csr POx_THRESHB; io7_csr rsvd5[33]; /* System Address Space Window Control Registers */ io7_csr POx_WBASE[4]; /* 0x1000 */ io7_csr POx_WMASK[4]; io7_csr POx_TBASE[4]; io7_csr POx_SG_TBIA; io7_csr POx_MSI_WBASE; io7_csr rsvd6[50]; /* I/O Port Error Registers */ io7_csr POx_ERR_SUM; io7_csr POx_FIRST_ERR; io7_csr POx_MSK_HEI; io7_csr POx_TLB_ERR; io7_csr POx_SPL_COMPLT; io7_csr POx_TRANS_SUM; io7_csr POx_FRC_PCI_ERR; io7_csr POx_MULT_ERR; io7_csr rsvd7[8]; /* I/O Port End of Interrupt Registers */ io7_csr EOI_DAT; io7_csr rsvd8[7]; io7_csr POx_IACK_SPECIAL; io7_csr rsvd9[103]; } io7_ioport_csrs; typedef struct { io7_csr IO_ASIC_REV; /* 0x30.0000 */ io7_csr IO_SYS_REV; io7_csr SER_CHAIN3; io7_csr PO7_RST1; io7_csr PO7_RST2; /* 0x30.0100 */ io7_csr POx_RST[4]; io7_csr IO7_DWNH; io7_csr IO7_MAF; io7_csr IO7_MAF_TO; io7_csr IO7_ACC_CLUMP; /* 0x30.0300 */ io7_csr IO7_PMASK; io7_csr IO7_IOMASK; io7_csr IO7_UPH; io7_csr IO7_UPH_TO; /* 0x30.0400 */ io7_csr RBX_IREQ_OFF; io7_csr RBX_INTA_OFF; io7_csr INT_RTY; io7_csr PO7_MONCTL; /* 0x30.0500 */ io7_csr PO7_CTRA; io7_csr PO7_CTRB; io7_csr PO7_CTR56; io7_csr PO7_SCRATCH; /* 0x30.0600 */ io7_csr PO7_XTRA_A; io7_csr PO7_XTRA_TS; io7_csr PO7_XTRA_Z; io7_csr PO7_PMASK; /* 0x30.0700 */ io7_csr PO7_THRESHA; io7_csr PO7_THRESHB; io7_csr rsvd1[97]; io7_csr PO7_ERROR_SUM; /* 0x30.2000 */ io7_csr PO7_BHOLE_MASK; io7_csr PO7_HEI_MSK; io7_csr PO7_CRD_MSK; io7_csr PO7_UNCRR_SYM; /* 0x30.2100 */ io7_csr PO7_CRRCT_SYM; io7_csr PO7_ERR_PKT[2]; io7_csr PO7_UGBGE_SYM; /* 0x30.2200 */ io7_csr rsbv2[887]; io7_csr PO7_LSI_CTL[128]; /* 0x31.0000 */ io7_csr rsvd3[123]; io7_csr HLT_CTL; /* 0x31.3ec0 */ io7_csr HPI_CTL; /* 0x31.3f00 */ io7_csr CRD_CTL; io7_csr STV_CTL; io7_csr HEI_CTL; io7_csr PO7_MSI_CTL[16]; /* 0x31.4000 */ io7_csr rsvd4[240]; /* * Interrupt Diagnostic / Test */ struct { io7_csr INT_PND; io7_csr INT_CLR; io7_csr INT_EOI; io7_csr rsvd[29]; } INT_DIAG[4]; io7_csr rsvd5[125]; /* 0x31.a000 */ io7_csr MISC_PND; /* 0x31.b800 */ io7_csr rsvd6[31]; io7_csr MSI_PND[16]; /* 0x31.c000 */ io7_csr rsvd7[16]; io7_csr MSI_CLR[16]; /* 0x31.c800 */ } io7_port7_csrs; /* * IO7 DMA Window Base register (POx_WBASEx) */ #define wbase_m_ena 0x1 #define wbase_m_sg 0x2 #define wbase_m_dac 0x4 #define wbase_m_addr 0xFFF00000 union IO7_POx_WBASE { struct { unsigned ena : 1; /* <0> */ unsigned sg : 1; /* <1> */ unsigned dac : 1; /* <2> -- window 3 only */ unsigned rsvd1 : 17; unsigned addr : 12; /* <31:20> */ unsigned rsvd2 : 32; } bits; unsigned as_long[2]; unsigned as_quad; }; /* * IO7 IID (Interrupt IDentifier) format * * For level-sensative interrupts, int_num is encoded as: * * bus/port slot/device INTx * <7:5> <4:2> <1:0> */ union IO7_IID { struct { unsigned int_num : 9; /* <8:0> */ unsigned tpu_mask : 4; /* <12:9> rsvd */ unsigned msi : 1; /* 13 */ unsigned ipe : 10; /* <23:14> */ unsigned long rsvd : 40; } bits; unsigned int as_long[2]; unsigned long as_quad; }; /* * IO7 addressing macros */ #define IO7_KERN_ADDR(addr) (EV7_KERN_ADDR(addr)) #define IO7_PORT_MASK 0x07UL /* 3 bits of port */ #define IO7_IPE(pe) (EV7_IPE(pe)) #define IO7_IPORT(port) ((~((long)(port)) & IO7_PORT_MASK) << 32) #define IO7_HOSE(pe, port) (IO7_IPE(pe) | IO7_IPORT(port)) #define IO7_MEM_PHYS(pe, port) (IO7_HOSE(pe, port) | 0x00000000UL) #define IO7_CONF_PHYS(pe, port) (IO7_HOSE(pe, port) | 0xFE000000UL) #define IO7_IO_PHYS(pe, port) (IO7_HOSE(pe, port) | 0xFF000000UL) #define IO7_CSR_PHYS(pe, port, off) \ (IO7_HOSE(pe, port) | 0xFF800000UL | (off)) #define IO7_CSRS_PHYS(pe, port) (IO7_CSR_PHYS(pe, port, 0UL)) #define IO7_PORT7_CSRS_PHYS(pe) (IO7_CSR_PHYS(pe, 7, 0x300000UL)) #define IO7_MEM_KERN(pe, port) (IO7_KERN_ADDR(IO7_MEM_PHYS(pe, port))) #define IO7_CONF_KERN(pe, port) (IO7_KERN_ADDR(IO7_CONF_PHYS(pe, port))) #define IO7_IO_KERN(pe, port) (IO7_KERN_ADDR(IO7_IO_PHYS(pe, port))) #define IO7_CSR_KERN(pe, port, off) (IO7_KERN_ADDR(IO7_CSR_PHYS(pe,port,off))) #define IO7_CSRS_KERN(pe, port) (IO7_KERN_ADDR(IO7_CSRS_PHYS(pe, port))) #define IO7_PORT7_CSRS_KERN(pe) (IO7_KERN_ADDR(IO7_PORT7_CSRS_PHYS(pe))) #define IO7_PLL_RNGA(pll) (((pll) >> 3) & 0x7) #define IO7_PLL_RNGB(pll) (((pll) >> 6) & 0x7) #define IO7_MEM_SPACE (2UL * 1024 * 1024 * 1024) /* 2GB MEM */ #define IO7_IO_SPACE (8UL * 1024 * 1024) /* 8MB I/O */ /* * Offset between ram physical addresses and pci64 DAC addresses */ #define IO7_DAC_OFFSET (1UL << 49) /* * This is needed to satisify the IO() macro used in initializing the machvec */ #define MARVEL_IACK_SC \ ((unsigned long) \ (&(((io7_ioport_csrs *)IO7_CSRS_KERN(0, 0))->POx_IACK_SPECIAL))) #ifdef __KERNEL__ /* * IO7 structs */ #define IO7_NUM_PORTS 4 #define IO7_AGP_PORT 3 struct io7_port { struct io7 *io7; struct pci_controller *hose; int enabled; unsigned int port; io7_ioport_csrs *csrs; unsigned long saved_wbase[4]; unsigned long saved_wmask[4]; unsigned long saved_tbase[4]; }; struct io7 { struct io7 *next; unsigned int pe; io7_port7_csrs *csrs; struct io7_port ports[IO7_NUM_PORTS]; spinlock_t irq_lock; }; #ifndef __EXTERN_INLINE # define __EXTERN_INLINE extern inline # define __IO_EXTERN_INLINE #endif /* * I/O functions. All access through linear space. */ /* * Memory functions. All accesses through linear space. */ #define vucp volatile unsigned char __force * #define vusp volatile unsigned short __force * extern unsigned int marvel_ioread8(void __iomem *); extern void marvel_iowrite8(u8 b, void __iomem *); __EXTERN_INLINE unsigned int marvel_ioread16(void __iomem *addr) { return __kernel_ldwu(*(vusp)addr); } __EXTERN_INLINE void marvel_iowrite16(u16 b, void __iomem *addr) { __kernel_stw(b, *(vusp)addr); } extern void __iomem *marvel_ioremap(unsigned long addr, unsigned long size); extern void marvel_iounmap(volatile void __iomem *addr); extern void __iomem *marvel_ioportmap (unsigned long addr); __EXTERN_INLINE int marvel_is_ioaddr(unsigned long addr) { return (addr >> 40) & 1; } extern int marvel_is_mmio(const volatile void __iomem *); #undef vucp #undef vusp #undef __IO_PREFIX #define __IO_PREFIX marvel #define marvel_trivial_rw_bw 1 #define marvel_trivial_rw_lq 1 #define marvel_trivial_io_bw 0 #define marvel_trivial_io_lq 1 #define marvel_trivial_iounmap 0 #include <asm/io_trivial.h> #ifdef __IO_EXTERN_INLINE # undef __EXTERN_INLINE # undef __IO_EXTERN_INLINE #endif #endif /* __KERNEL__ */ #endif /* __ALPHA_MARVEL__H__ */