#ifndef __ALPHA_CIA__H__ #define __ALPHA_CIA__H__ #include #include /* * CIA is the internal name for the 2117x chipset which provides * memory controller and PCI access for the 21164 chip based systems. * * This file is based on: * * DECchip 21171 Core Logic Chipset * Technical Reference Manual * * EC-QE18B-TE * * david.rusling@reo.mts.dec.com Initial Version. * */ /*------------------------------------------------------------------------** ** ** ** EB164 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 ** ** ** **------------------------------------------------------------------------*/ /* CIA ADDRESS BIT DEFINITIONS * * 3 3 3 3|3 3 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 * 9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |1| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |0|0|0| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | \_/ \_/ * | | | * +-- IO space, not cached. Byte Enable --+ | * Transfer Length --+ * * * * 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 BYTE_ENABLE_SHIFT 5 #define TRANSFER_LENGTH_SHIFT 3 #define MEM_SP1_MASK 0x1fffffff /* Mem sparse space 1 mask is 29 bits */ #define CIA_DMA_WIN_BASE (1024UL*1024UL*1024UL) #define CIA_DMA_WIN_SIZE (1024*1024*1024) /* * 21171-CA Control and Status Registers (p4-1) */ #define CIA_IOC_CIA_REV (IDENT_ADDR + 0x8740000080UL) #define CIA_IOC_PCI_LAT (IDENT_ADDR + 0x87400000C0UL) #define CIA_IOC_CIA_CTRL (IDENT_ADDR + 0x8740000100UL) #define CIA_IOC_HAE_MEM (IDENT_ADDR + 0x8740000400UL) #define CIA_IOC_HAE_IO (IDENT_ADDR + 0x8740000440UL) #define CIA_IOC_CFG (IDENT_ADDR + 0x8740000480UL) #define CIA_IOC_CACK_EN (IDENT_ADDR + 0x8740000600UL) /* * 21171-CA Diagnostic Registers (p4-2) */ #define CIA_IOC_CIA_DIAG (IDENT_ADDR + 0x8740002000UL) #define CIA_IOC_DIAG_CHECK (IDENT_ADDR + 0x8740003000UL) /* * 21171-CA Performance Monitor registers (p4-3) */ #define CIA_IOC_PERF_MONITOR (IDENT_ADDR + 0x8740004000UL) #define CIA_IOC_PERF_CONTROL (IDENT_ADDR + 0x8740004040UL) /* * 21171-CA Error registers (p4-3) */ #define CIA_IOC_CPU_ERR0 (IDENT_ADDR + 0x8740008000UL) #define CIA_IOC_CPU_ERR1 (IDENT_ADDR + 0x8740008040UL) #define CIA_IOC_CIA_ERR (IDENT_ADDR + 0x8740008200UL) #define CIA_IOC_CIA_STAT (IDENT_ADDR + 0x8740008240UL) #define CIA_IOC_ERR_MASK (IDENT_ADDR + 0x8740008280UL) #define CIA_IOC_CIA_SYN (IDENT_ADDR + 0x8740008300UL) #define CIA_IOC_MEM_ERR0 (IDENT_ADDR + 0x8740008400UL) #define CIA_IOC_MEM_ERR1 (IDENT_ADDR + 0x8740008440UL) #define CIA_IOC_PCI_ERR0 (IDENT_ADDR + 0x8740008800UL) #define CIA_IOC_PCI_ERR1 (IDENT_ADDR + 0x8740008840UL) #define CIA_IOC_PCI_ERR3 (IDENT_ADDR + 0x8740008880UL) /* * 2117A-CA PCI Address Translation Registers. I've only defined * the first window fully as that's the only one that we're currently using. * The other window bases are needed to disable the windows. */ #define CIA_IOC_PCI_TBIA (IDENT_ADDR + 0x8760000100UL) #define CIA_IOC_PCI_W0_BASE (IDENT_ADDR + 0x8760000400UL) #define CIA_IOC_PCI_W0_MASK (IDENT_ADDR + 0x8760000440UL) #define CIA_IOC_PCI_T0_BASE (IDENT_ADDR + 0x8760000480UL) #define CIA_IOC_PCI_W1_BASE (IDENT_ADDR + 0x8760000500UL) #define CIA_IOC_PCI_W2_BASE (IDENT_ADDR + 0x8760000600UL) #define CIA_IOC_PCI_W3_BASE (IDENT_ADDR + 0x8760000700UL) /* * 21171-CA System configuration registers (p4-3) */ #define CIA_IOC_MCR (IDENT_ADDR + 0x8750000000UL) #define CIA_IOC_MBA0 (IDENT_ADDR + 0x8750000600UL) #define CIA_IOC_MBA2 (IDENT_ADDR + 0x8750000680UL) #define CIA_IOC_MBA4 (IDENT_ADDR + 0x8750000700UL) #define CIA_IOC_MBA6 (IDENT_ADDR + 0x8750000780UL) #define CIA_IOC_MBA8 (IDENT_ADDR + 0x8750000800UL) #define CIA_IOC_MBAA (IDENT_ADDR + 0x8750000880UL) #define CIA_IOC_MBAC (IDENT_ADDR + 0x8750000900UL) #define CIA_IOC_MBAE (IDENT_ADDR + 0x8750000980UL) #define CIA_IOC_TMG0 (IDENT_ADDR + 0x8750000B00UL) #define CIA_IOC_TMG1 (IDENT_ADDR + 0x8750000B40UL) #define CIA_IOC_TMG2 (IDENT_ADDR + 0x8750000B80UL) /* * Memory spaces: */ #define CIA_IACK_SC (IDENT_ADDR + 0x8720000000UL) #define CIA_CONF (IDENT_ADDR + 0x8700000000UL) #define CIA_IO (IDENT_ADDR + 0x8580000000UL) #define CIA_SPARSE_MEM (IDENT_ADDR + 0x8000000000UL) #define CIA_DENSE_MEM (IDENT_ADDR + 0x8600000000UL) /* * ALCOR's GRU ASIC registers */ #define GRU_INT_REQ (IDENT_ADDR + 0x8780000000UL) #define GRU_INT_MASK (IDENT_ADDR + 0x8780000040UL) #define GRU_INT_EDGE (IDENT_ADDR + 0x8780000080UL) #define GRU_INT_HILO (IDENT_ADDR + 0x87800000C0UL) #define GRU_INT_CLEAR (IDENT_ADDR + 0x8780000100UL) #define GRU_CACHE_CNFG (IDENT_ADDR + 0x8780000200UL) #define GRU_SCR (IDENT_ADDR + 0x8780000300UL) #define GRU_LED (IDENT_ADDR + 0x8780000800UL) #define GRU_RESET (IDENT_ADDR + 0x8780000900UL) #if defined(CONFIG_ALPHA_ALCOR) #define GRU_INT_REQ_BITS 0x800fffffUL #elif defined(CONFIG_ALPHA_XLT) #define GRU_INT_REQ_BITS 0x80003fffUL #else #define GRU_INT_REQ_BITS 0xffffffffUL #endif /* * Bit definitions for I/O Controller status register 0: */ #define CIA_IOC_STAT0_CMD 0xf #define CIA_IOC_STAT0_ERR (1<<4) #define CIA_IOC_STAT0_LOST (1<<5) #define CIA_IOC_STAT0_THIT (1<<6) #define CIA_IOC_STAT0_TREF (1<<7) #define CIA_IOC_STAT0_CODE_SHIFT 8 #define CIA_IOC_STAT0_CODE_MASK 0x7 #define CIA_IOC_STAT0_P_NBR_SHIFT 13 #define CIA_IOC_STAT0_P_NBR_MASK 0x7ffff #define HAE_ADDRESS CIA_IOC_HAE_MEM #ifdef __KERNEL__ /* * Translate physical memory address as seen on (PCI) bus into * a kernel virtual address and vv. */ extern inline unsigned long virt_to_bus(void * address) { return virt_to_phys(address) + CIA_DMA_WIN_BASE; } extern inline void * bus_to_virt(unsigned long address) { return phys_to_virt(address - CIA_DMA_WIN_BASE); } /* * I/O functions: * * CIA (the 2117x PCI/memory support chipset for the EV5 (21164) * series of processors uses a sparse address mapping scheme to * get at PCI memory and I/O. */ #define vuip volatile unsigned int * extern inline unsigned int __inb(unsigned long addr) { long result = *(vuip) ((addr << 5) + CIA_IO + 0x00); result >>= (addr & 3) * 8; return 0xffUL & result; } extern inline void __outb(unsigned char b, unsigned long addr) { unsigned int w; asm ("insbl %2,%1,%0" : "r="(w) : "ri"(addr & 0x3), "r"(b)); *(vuip) ((addr << 5) + CIA_IO + 0x00) = w; mb(); } extern inline unsigned int __inw(unsigned long addr) { long result = *(vuip) ((addr << 5) + CIA_IO + 0x08); result >>= (addr & 3) * 8; return 0xffffUL & result; } extern inline void __outw(unsigned short b, unsigned long addr) { unsigned int w; asm ("inswl %2,%1,%0" : "r="(w) : "ri"(addr & 0x3), "r"(b)); *(vuip) ((addr << 5) + CIA_IO + 0x08) = w; mb(); } extern inline unsigned int __inl(unsigned long addr) { return *(vuip) ((addr << 5) + CIA_IO + 0x18); } extern inline void __outl(unsigned int b, unsigned long addr) { *(vuip) ((addr << 5) + CIA_IO + 0x18) = b; mb(); } /* * 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 * */ extern inline unsigned long __readb(unsigned long addr) { unsigned long result, shift, msb; shift = (addr & 0x3) * 8 ; msb = addr & 0xE0000000 ; addr &= MEM_SP1_MASK ; if (msb != hae.cache) { set_hae(msb); } result = *(vuip) ((addr << 5) + CIA_SPARSE_MEM + 0x00) ; result >>= shift; return 0xffUL & result; } extern inline unsigned long __readw(unsigned long addr) { unsigned long result, shift, msb; shift = (addr & 0x3) * 8; msb = addr & 0xE0000000 ; addr &= MEM_SP1_MASK ; if (msb != hae.cache) { set_hae(msb); } result = *(vuip) ((addr << 5) + CIA_SPARSE_MEM + 0x08); result >>= shift; return 0xffffUL & result; } extern inline unsigned long __readl(unsigned long addr) { return *(vuip) (addr + CIA_DENSE_MEM); } extern inline void __writeb(unsigned char b, unsigned long addr) { unsigned long msb ; msb = addr & 0xE0000000 ; addr &= MEM_SP1_MASK ; if (msb != hae.cache) { set_hae(msb); } *(vuip) ((addr << 5) + CIA_SPARSE_MEM + 0x00) = b * 0x01010101; } extern inline void __writew(unsigned short b, unsigned long addr) { unsigned long msb ; msb = addr & 0xE0000000 ; addr &= MEM_SP1_MASK ; if (msb != hae.cache) { set_hae(msb); } *(vuip) ((addr << 5) + CIA_SPARSE_MEM + 0x08) = b * 0x00010001; } extern inline void __writel(unsigned int b, unsigned long addr) { *(vuip) (addr + CIA_DENSE_MEM) = b; } #define inb(port) \ (__builtin_constant_p((port))?__inb(port):_inb(port)) #define outb(x, port) \ (__builtin_constant_p((port))?__outb((x),(port)):_outb((x),(port))) #define readl(a) __readl((unsigned long)(a)) #define writel(v,a) __writel((v),(unsigned long)(a)) #undef vuip extern unsigned long cia_init (unsigned long mem_start, unsigned long mem_end); #endif /* __KERNEL__ */ /* * Data structure for handling CIA machine checks: */ /* ev5-specific info: */ struct el_procdata { unsigned long shadow[8]; /* PALmode shadow registers */ unsigned long paltemp[24]; /* PAL temporary registers */ /* EV5-specific fields */ unsigned long exc_addr; /* Address of excepting instruction. */ unsigned long exc_sum; /* Summary of arithmetic traps. */ unsigned long exc_mask; /* Exception mask (from exc_sum). */ unsigned long exc_base; /* PALbase at time of exception. */ unsigned long isr; /* Interrupt summary register. */ unsigned long icsr; /* Ibox control register. */ unsigned long ic_perr_stat; unsigned long dc_perr_stat; unsigned long va; /* Effective VA of fault or miss. */ unsigned long mm_stat; unsigned long sc_addr; unsigned long sc_stat; unsigned long bc_tag_addr; unsigned long ei_addr; unsigned long fill_syn; unsigned long ei_stat; unsigned long ld_lock; }; /* system-specific info: */ struct el_CIA_sysdata_mcheck { unsigned long coma_gcr; unsigned long coma_edsr; unsigned long coma_ter; unsigned long coma_elar; unsigned long coma_ehar; unsigned long coma_ldlr; unsigned long coma_ldhr; unsigned long coma_base0; unsigned long coma_base1; unsigned long coma_base2; unsigned long coma_cnfg0; unsigned long coma_cnfg1; unsigned long coma_cnfg2; unsigned long epic_dcsr; unsigned long epic_pear; unsigned long epic_sear; unsigned long epic_tbr1; unsigned long epic_tbr2; unsigned long epic_pbr1; unsigned long epic_pbr2; unsigned long epic_pmr1; unsigned long epic_pmr2; unsigned long epic_harx1; unsigned long epic_harx2; unsigned long epic_pmlt; unsigned long epic_tag0; unsigned long epic_tag1; unsigned long epic_tag2; unsigned long epic_tag3; unsigned long epic_tag4; unsigned long epic_tag5; unsigned long epic_tag6; unsigned long epic_tag7; unsigned long epic_data0; unsigned long epic_data1; unsigned long epic_data2; unsigned long epic_data3; unsigned long epic_data4; unsigned long epic_data5; unsigned long epic_data6; unsigned long epic_data7; }; #define RTC_PORT(x) (0x70 + (x)) #define RTC_ADDR(x) (0x80 | (x)) #define RTC_ALWAYS_BCD 0 #endif /* __ALPHA_CIA__H__ */