| #ifndef __ALPHA_MCPCIA__H__ |
| #define __ALPHA_MCPCIA__H__ |
| |
| /* Define to experiment with fitting everything into one 128MB HAE window. |
| One window per bus, that is. */ |
| #define MCPCIA_ONE_HAE_WINDOW 1 |
| |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <asm/compiler.h> |
| |
| /* |
| * MCPCIA is the internal name for a core logic chipset which provides |
| * PCI access for the RAWHIDE family of systems. |
| * |
| * This file is based on: |
| * |
| * RAWHIDE System Programmer's Manual |
| * 16-May-96 |
| * Rev. 1.4 |
| * |
| */ |
| |
| /*------------------------------------------------------------------------** |
| ** ** |
| ** I/O procedures ** |
| ** ** |
| ** inport[b|w|t|l], outport[b|w|t|l] 8:16:24:32 IO xfers ** |
| ** inportbxt: 8 bits only ** |
| ** inport: alias of inportw ** |
| ** outport: alias of outportw ** |
| ** ** |
| ** inmem[b|w|t|l], outmem[b|w|t|l] 8:16:24:32 ISA memory xfers ** |
| ** inmembxt: 8 bits only ** |
| ** inmem: alias of inmemw ** |
| ** outmem: alias of outmemw ** |
| ** ** |
| **------------------------------------------------------------------------*/ |
| |
| |
| /* MCPCIA ADDRESS BIT DEFINITIONS |
| * |
| * 3333 3333 3322 2222 2222 1111 1111 11 |
| * 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210 |
| * ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- |
| * 1 000 |
| * ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- |
| * | |\| |
| * | Byte Enable --+ | |
| * | Transfer Length --+ |
| * +-- IO space, not cached |
| * |
| * Byte Transfer |
| * Enable Length Transfer Byte Address |
| * adr<6:5> adr<4:3> Length Enable Adder |
| * --------------------------------------------- |
| * 00 00 Byte 1110 0x000 |
| * 01 00 Byte 1101 0x020 |
| * 10 00 Byte 1011 0x040 |
| * 11 00 Byte 0111 0x060 |
| * |
| * 00 01 Word 1100 0x008 |
| * 01 01 Word 1001 0x028 <= Not supported in this code. |
| * 10 01 Word 0011 0x048 |
| * |
| * 00 10 Tribyte 1000 0x010 |
| * 01 10 Tribyte 0001 0x030 |
| * |
| * 10 11 Longword 0000 0x058 |
| * |
| * Note that byte enables are asserted low. |
| * |
| */ |
| |
| #define MCPCIA_MID(m) ((unsigned long)(m) << 33) |
| |
| /* Dodge has PCI0 and PCI1 at MID 4 and 5 respectively. |
| Durango adds PCI2 and PCI3 at MID 6 and 7 respectively. */ |
| #define MCPCIA_HOSE2MID(h) ((h) + 4) |
| |
| #define MCPCIA_MEM_MASK 0x07ffffff /* SPARSE Mem region mask is 27 bits */ |
| |
| /* |
| * Memory spaces: |
| */ |
| #define MCPCIA_SPARSE(m) (IDENT_ADDR + 0xf000000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_DENSE(m) (IDENT_ADDR + 0xf100000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_IO(m) (IDENT_ADDR + 0xf180000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_CONF(m) (IDENT_ADDR + 0xf1c0000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_CSR(m) (IDENT_ADDR + 0xf1e0000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_IO_IACK(m) (IDENT_ADDR + 0xf1f0000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_DENSE_IO(m) (IDENT_ADDR + 0xe1fc000000UL + MCPCIA_MID(m)) |
| #define MCPCIA_DENSE_CONF(m) (IDENT_ADDR + 0xe1fe000000UL + MCPCIA_MID(m)) |
| |
| /* |
| * General Registers |
| */ |
| #define MCPCIA_REV(m) (MCPCIA_CSR(m) + 0x000) |
| #define MCPCIA_WHOAMI(m) (MCPCIA_CSR(m) + 0x040) |
| #define MCPCIA_PCI_LAT(m) (MCPCIA_CSR(m) + 0x080) |
| #define MCPCIA_CAP_CTRL(m) (MCPCIA_CSR(m) + 0x100) |
| #define MCPCIA_HAE_MEM(m) (MCPCIA_CSR(m) + 0x400) |
| #define MCPCIA_HAE_IO(m) (MCPCIA_CSR(m) + 0x440) |
| #define _MCPCIA_IACK_SC(m) (MCPCIA_CSR(m) + 0x480) |
| #define MCPCIA_HAE_DENSE(m) (MCPCIA_CSR(m) + 0x4C0) |
| |
| /* |
| * Interrupt Control registers |
| */ |
| #define MCPCIA_INT_CTL(m) (MCPCIA_CSR(m) + 0x500) |
| #define MCPCIA_INT_REQ(m) (MCPCIA_CSR(m) + 0x540) |
| #define MCPCIA_INT_TARG(m) (MCPCIA_CSR(m) + 0x580) |
| #define MCPCIA_INT_ADR(m) (MCPCIA_CSR(m) + 0x5C0) |
| #define MCPCIA_INT_ADR_EXT(m) (MCPCIA_CSR(m) + 0x600) |
| #define MCPCIA_INT_MASK0(m) (MCPCIA_CSR(m) + 0x640) |
| #define MCPCIA_INT_MASK1(m) (MCPCIA_CSR(m) + 0x680) |
| #define MCPCIA_INT_ACK0(m) (MCPCIA_CSR(m) + 0x10003f00) |
| #define MCPCIA_INT_ACK1(m) (MCPCIA_CSR(m) + 0x10003f40) |
| |
| /* |
| * Performance Monitor registers |
| */ |
| #define MCPCIA_PERF_MON(m) (MCPCIA_CSR(m) + 0x300) |
| #define MCPCIA_PERF_CONT(m) (MCPCIA_CSR(m) + 0x340) |
| |
| /* |
| * Diagnostic Registers |
| */ |
| #define MCPCIA_CAP_DIAG(m) (MCPCIA_CSR(m) + 0x700) |
| #define MCPCIA_TOP_OF_MEM(m) (MCPCIA_CSR(m) + 0x7C0) |
| |
| /* |
| * Error registers |
| */ |
| #define MCPCIA_MC_ERR0(m) (MCPCIA_CSR(m) + 0x800) |
| #define MCPCIA_MC_ERR1(m) (MCPCIA_CSR(m) + 0x840) |
| #define MCPCIA_CAP_ERR(m) (MCPCIA_CSR(m) + 0x880) |
| #define MCPCIA_PCI_ERR1(m) (MCPCIA_CSR(m) + 0x1040) |
| #define MCPCIA_MDPA_STAT(m) (MCPCIA_CSR(m) + 0x4000) |
| #define MCPCIA_MDPA_SYN(m) (MCPCIA_CSR(m) + 0x4040) |
| #define MCPCIA_MDPA_DIAG(m) (MCPCIA_CSR(m) + 0x4080) |
| #define MCPCIA_MDPB_STAT(m) (MCPCIA_CSR(m) + 0x8000) |
| #define MCPCIA_MDPB_SYN(m) (MCPCIA_CSR(m) + 0x8040) |
| #define MCPCIA_MDPB_DIAG(m) (MCPCIA_CSR(m) + 0x8080) |
| |
| /* |
| * PCI Address Translation Registers. |
| */ |
| #define MCPCIA_SG_TBIA(m) (MCPCIA_CSR(m) + 0x1300) |
| #define MCPCIA_HBASE(m) (MCPCIA_CSR(m) + 0x1340) |
| |
| #define MCPCIA_W0_BASE(m) (MCPCIA_CSR(m) + 0x1400) |
| #define MCPCIA_W0_MASK(m) (MCPCIA_CSR(m) + 0x1440) |
| #define MCPCIA_T0_BASE(m) (MCPCIA_CSR(m) + 0x1480) |
| |
| #define MCPCIA_W1_BASE(m) (MCPCIA_CSR(m) + 0x1500) |
| #define MCPCIA_W1_MASK(m) (MCPCIA_CSR(m) + 0x1540) |
| #define MCPCIA_T1_BASE(m) (MCPCIA_CSR(m) + 0x1580) |
| |
| #define MCPCIA_W2_BASE(m) (MCPCIA_CSR(m) + 0x1600) |
| #define MCPCIA_W2_MASK(m) (MCPCIA_CSR(m) + 0x1640) |
| #define MCPCIA_T2_BASE(m) (MCPCIA_CSR(m) + 0x1680) |
| |
| #define MCPCIA_W3_BASE(m) (MCPCIA_CSR(m) + 0x1700) |
| #define MCPCIA_W3_MASK(m) (MCPCIA_CSR(m) + 0x1740) |
| #define MCPCIA_T3_BASE(m) (MCPCIA_CSR(m) + 0x1780) |
| |
| /* Hack! Only words for bus 0. */ |
| |
| #ifndef MCPCIA_ONE_HAE_WINDOW |
| #define MCPCIA_HAE_ADDRESS MCPCIA_HAE_MEM(4) |
| #endif |
| #define MCPCIA_IACK_SC _MCPCIA_IACK_SC(4) |
| |
| /* |
| * The canonical non-remaped I/O and MEM addresses have these values |
| * subtracted out. This is arranged so that folks manipulating ISA |
| * devices can use their familiar numbers and have them map to bus 0. |
| */ |
| |
| #define MCPCIA_IO_BIAS MCPCIA_IO(4) |
| #define MCPCIA_MEM_BIAS MCPCIA_DENSE(4) |
| |
| /* Offset between ram physical addresses and pci64 DAC bus addresses. */ |
| #define MCPCIA_DAC_OFFSET (1UL << 40) |
| |
| /* |
| * Data structure for handling MCPCIA machine checks: |
| */ |
| struct el_MCPCIA_uncorrected_frame_mcheck { |
| struct el_common header; |
| struct el_common_EV5_uncorrectable_mcheck procdata; |
| }; |
| |
| |
| #ifdef __KERNEL__ |
| |
| #ifndef __EXTERN_INLINE |
| #define __EXTERN_INLINE extern inline |
| #define __IO_EXTERN_INLINE |
| #endif |
| |
| /* |
| * I/O functions: |
| * |
| * MCPCIA, the RAWHIDE family PCI/memory support chipset for the EV5 (21164) |
| * and EV56 (21164a) processors, can use either a sparse address mapping |
| * scheme, or the so-called byte-word PCI address space, to get at PCI memory |
| * and I/O. |
| * |
| * Unfortunately, we can't use BWIO with EV5, so for now, we always use SPARSE. |
| */ |
| |
| /* |
| * Memory functions. 64-bit and 32-bit accesses are done through |
| * dense memory space, everything else through sparse space. |
| * |
| * For reading and writing 8 and 16 bit quantities we need to |
| * go through one of the three sparse address mapping regions |
| * and use the HAE_MEM CSR to provide some bits of the address. |
| * The following few routines use only sparse address region 1 |
| * which gives 1Gbyte of accessible space which relates exactly |
| * to the amount of PCI memory mapping *into* system address space. |
| * See p 6-17 of the specification but it looks something like this: |
| * |
| * 21164 Address: |
| * |
| * 3 2 1 |
| * 9876543210987654321098765432109876543210 |
| * 1ZZZZ0.PCI.QW.Address............BBLL |
| * |
| * ZZ = SBZ |
| * BB = Byte offset |
| * LL = Transfer length |
| * |
| * PCI Address: |
| * |
| * 3 2 1 |
| * 10987654321098765432109876543210 |
| * HHH....PCI.QW.Address........ 00 |
| * |
| * HHH = 31:29 HAE_MEM CSR |
| * |
| */ |
| |
| #define vip volatile int __force * |
| #define vuip volatile unsigned int __force * |
| |
| #ifdef MCPCIA_ONE_HAE_WINDOW |
| #define MCPCIA_FROB_MMIO \ |
| if (__mcpcia_is_mmio(hose)) { \ |
| set_hae(hose & 0xffffffff); \ |
| hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4); \ |
| } |
| #else |
| #define MCPCIA_FROB_MMIO \ |
| if (__mcpcia_is_mmio(hose)) { \ |
| hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4); \ |
| } |
| #endif |
| |
| static inline int __mcpcia_is_mmio(unsigned long addr) |
| { |
| return (addr & 0x80000000UL) == 0; |
| } |
| |
| __EXTERN_INLINE unsigned int mcpcia_ioread8(void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; |
| unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; |
| unsigned long result; |
| |
| MCPCIA_FROB_MMIO; |
| |
| result = *(vip) ((addr << 5) + hose + 0x00); |
| return __kernel_extbl(result, addr & 3); |
| } |
| |
| __EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; |
| unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; |
| unsigned long w; |
| |
| MCPCIA_FROB_MMIO; |
| |
| w = __kernel_insbl(b, addr & 3); |
| *(vuip) ((addr << 5) + hose + 0x00) = w; |
| } |
| |
| __EXTERN_INLINE unsigned int mcpcia_ioread16(void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; |
| unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; |
| unsigned long result; |
| |
| MCPCIA_FROB_MMIO; |
| |
| result = *(vip) ((addr << 5) + hose + 0x08); |
| return __kernel_extwl(result, addr & 3); |
| } |
| |
| __EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; |
| unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; |
| unsigned long w; |
| |
| MCPCIA_FROB_MMIO; |
| |
| w = __kernel_inswl(b, addr & 3); |
| *(vuip) ((addr << 5) + hose + 0x08) = w; |
| } |
| |
| __EXTERN_INLINE unsigned int mcpcia_ioread32(void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr; |
| |
| if (!__mcpcia_is_mmio(addr)) |
| addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18; |
| |
| return *(vuip)addr; |
| } |
| |
| __EXTERN_INLINE void mcpcia_iowrite32(u32 b, void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long)xaddr; |
| |
| if (!__mcpcia_is_mmio(addr)) |
| addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18; |
| |
| *(vuip)addr = b; |
| } |
| |
| |
| __EXTERN_INLINE void __iomem *mcpcia_ioportmap(unsigned long addr) |
| { |
| return (void __iomem *)(addr + MCPCIA_IO_BIAS); |
| } |
| |
| __EXTERN_INLINE void __iomem *mcpcia_ioremap(unsigned long addr, |
| unsigned long size) |
| { |
| return (void __iomem *)(addr + MCPCIA_MEM_BIAS); |
| } |
| |
| __EXTERN_INLINE int mcpcia_is_ioaddr(unsigned long addr) |
| { |
| return addr >= MCPCIA_SPARSE(0); |
| } |
| |
| __EXTERN_INLINE int mcpcia_is_mmio(const volatile void __iomem *xaddr) |
| { |
| unsigned long addr = (unsigned long) xaddr; |
| return __mcpcia_is_mmio(addr); |
| } |
| |
| #undef MCPCIA_FROB_MMIO |
| |
| #undef vip |
| #undef vuip |
| |
| #undef __IO_PREFIX |
| #define __IO_PREFIX mcpcia |
| #define mcpcia_trivial_rw_bw 2 |
| #define mcpcia_trivial_rw_lq 1 |
| #define mcpcia_trivial_io_bw 0 |
| #define mcpcia_trivial_io_lq 0 |
| #define mcpcia_trivial_iounmap 1 |
| #include <asm/io_trivial.h> |
| |
| #ifdef __IO_EXTERN_INLINE |
| #undef __EXTERN_INLINE |
| #undef __IO_EXTERN_INLINE |
| #endif |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ALPHA_MCPCIA__H__ */ |
