patch-1.3.70 linux/include/asm-alpha/alcor.h

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diff -u --recursive --new-file v1.3.69/linux/include/asm-alpha/alcor.h linux/include/asm-alpha/alcor.h
@@ -0,0 +1,407 @@
+#ifndef __ALPHA_ALCOR__H__
+#define __ALPHA_ALCOR__H__
+
+#include <linux/types.h>
+
+/*
+ * ALCOR 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                                        **
+**                                                                        **
+**------------------------------------------------------------------------*/
+
+
+/* ALCOR 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 ALCOR_DMA_WIN_BASE	(1024UL*1024UL*1024UL)
+#define ALCOR_DMA_WIN_SIZE	(1024*1024*1024)
+
+/*
+ * 21171-CA Control and Status Registers (p4-1)
+ */
+#define ALCOR_IOC_CIA_REV               (IDENT_ADDR + 0x8740000080UL)
+#define ALCOR_IOC_PCI_LAT               (IDENT_ADDR + 0x87400000C0UL)
+#define ALCOR_IOC_CIA_CTRL              (IDENT_ADDR + 0x8740000100UL)
+#define ALCOR_IOC_HAE_MEM               (IDENT_ADDR + 0x8740000400UL)
+#define ALCOR_IOC_HAE_IO                (IDENT_ADDR + 0x8740000440UL)
+#define ALCOR_IOC_CFG                   (IDENT_ADDR + 0x8740000480UL)
+#define ALCOR_IOC_CACK_EN               (IDENT_ADDR + 0x8740000600UL)
+
+/*
+ * 21171-CA Diagnostic Registers (p4-2)
+ */
+#define ALCOR_IOC_CIA_DIAG              (IDENT_ADDR + 0x8740002000UL)
+#define ALCOR_IOC_DIAG_CHECK            (IDENT_ADDR + 0x8740003000UL)
+
+/*
+ * 21171-CA Performance Monitor registers (p4-3)
+ */
+#define ALCOR_IOC_PERF_MONITOR          (IDENT_ADDR + 0x8740004000UL)
+#define ALCOR_IOC_PERF_CONTROL          (IDENT_ADDR + 0x8740004040UL)
+
+/*
+ * 21171-CA Error registers (p4-3)
+ */
+#define ALCOR_IOC_CPU_ERR0              (IDENT_ADDR + 0x8740008000UL)
+#define ALCOR_IOC_CPU_ERR1              (IDENT_ADDR + 0x8740008040UL)
+#define ALCOR_IOC_CIA_ERR               (IDENT_ADDR + 0x8740008200UL)
+#define ALCOR_IOC_CIA_STAT              (IDENT_ADDR + 0x8740008240UL)
+#define ALCOR_IOC_ERR_MASK              (IDENT_ADDR + 0x8740008280UL)
+#define ALCOR_IOC_CIA_SYN               (IDENT_ADDR + 0x8740008300UL)
+#define ALCOR_IOC_MEM_ERR0              (IDENT_ADDR + 0x8740008400UL)
+#define ALCOR_IOC_MEM_ERR1              (IDENT_ADDR + 0x8740008440UL)
+#define ALCOR_IOC_PCI_ERR0              (IDENT_ADDR + 0x8740008800UL)
+#define ALCOR_IOC_PCI_ERR1              (IDENT_ADDR + 0x8740008840UL)
+#define ALCOR_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 ALCOR_IOC_PCI_TBIA              (IDENT_ADDR + 0x8760000100UL)
+#define ALCOR_IOC_PCI_W0_BASE           (IDENT_ADDR + 0x8760000400UL)
+#define ALCOR_IOC_PCI_W0_MASK           (IDENT_ADDR + 0x8760000440UL)
+#define ALCOR_IOC_PCI_T0_BASE           (IDENT_ADDR + 0x8760000480UL)
+
+#define ALCOR_IOC_PCI_W1_BASE           (IDENT_ADDR + 0x8760000500UL)
+#define ALCOR_IOC_PCI_W2_BASE           (IDENT_ADDR + 0x8760000600UL)
+#define ALCOR_IOC_PCI_W3_BASE           (IDENT_ADDR + 0x8760000700UL)
+
+/*
+ * 21171-CA System configuration registers (p4-3)
+ */
+#define ALCOR_IOC_MCR                   (IDENT_ADDR + 0x8750000000UL)
+#define ALCOR_IOC_MBA0                  (IDENT_ADDR + 0x8750000600UL)
+#define ALCOR_IOC_MBA2                  (IDENT_ADDR + 0x8750000680UL)
+#define ALCOR_IOC_MBA4                  (IDENT_ADDR + 0x8750000700UL)
+#define ALCOR_IOC_MBA6                  (IDENT_ADDR + 0x8750000780UL)
+#define ALCOR_IOC_MBA8                  (IDENT_ADDR + 0x8750000800UL)
+#define ALCOR_IOC_MBAA                  (IDENT_ADDR + 0x8750000880UL)
+#define ALCOR_IOC_MBAC                  (IDENT_ADDR + 0x8750000900UL)
+#define ALCOR_IOC_MBAE                  (IDENT_ADDR + 0x8750000980UL)
+#define ALCOR_IOC_TMG0                  (IDENT_ADDR + 0x8750000B00UL)
+#define ALCOR_IOC_TMG1                  (IDENT_ADDR + 0x8750000B40UL)
+#define ALCOR_IOC_TMG2                  (IDENT_ADDR + 0x8750000B80UL)
+
+/*
+ * Memory spaces:
+ */
+#define ALCOR_IACK_SC		        (IDENT_ADDR + 0x8720000000UL)
+#define ALCOR_CONF		        (IDENT_ADDR + 0x8700000000UL)
+#define ALCOR_IO			(IDENT_ADDR + 0x8580000000UL)
+#define ALCOR_SPARSE_MEM		(IDENT_ADDR + 0x8000000000UL)
+#define ALCOR_DENSE_MEM		        (IDENT_ADDR + 0x8600000000UL)
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define ALCOR_IOC_STAT0_CMD		0xf
+#define ALCOR_IOC_STAT0_ERR		(1<<4)
+#define ALCOR_IOC_STAT0_LOST		(1<<5)
+#define ALCOR_IOC_STAT0_THIT		(1<<6)
+#define ALCOR_IOC_STAT0_TREF		(1<<7)
+#define ALCOR_IOC_STAT0_CODE_SHIFT	8
+#define ALCOR_IOC_STAT0_CODE_MASK	0x7
+#define ALCOR_IOC_STAT0_P_NBR_SHIFT	13
+#define ALCOR_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define HAE_ADDRESS	                ALCOR_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) + ALCOR_DMA_WIN_BASE;
+}
+
+extern inline void * bus_to_virt(unsigned long address)
+{
+	return phys_to_virt(address - ALCOR_DMA_WIN_BASE);
+}
+
+/*
+ * I/O functions:
+ *
+ * Alcor (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) + ALCOR_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) + ALCOR_IO + 0x00) = w;
+	mb();
+}
+
+extern inline unsigned int __inw(unsigned long addr)
+{
+	long result = *(vuip) ((addr << 5) + ALCOR_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) + ALCOR_IO + 0x08) = w;
+	mb();
+}
+
+extern inline unsigned int __inl(unsigned long addr)
+{
+	return *(vuip) ((addr << 5) + ALCOR_IO + 0x18);
+}
+
+extern inline void __outl(unsigned int b, unsigned long addr)
+{
+	*(vuip) ((addr << 5) + ALCOR_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) + ALCOR_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) + ALCOR_SPARSE_MEM + 0x08);
+	result >>= shift;
+	return 0xffffUL & result;
+}
+
+extern inline unsigned long __readl(unsigned long addr)
+{
+	return *(vuip) (addr + ALCOR_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) + ALCOR_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) + ALCOR_SPARSE_MEM + 0x08) = b * 0x00010001;
+}
+
+extern inline void __writel(unsigned int b, unsigned long addr)
+{
+	*(vuip) (addr + ALCOR_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 alcor_init (unsigned long mem_start,
+				 unsigned long mem_end);
+
+#endif /* __KERNEL__ */
+
+/*
+ * Data structure for handling ALCOR machine checks:
+ */
+struct el_ALCOR_sysdata_mcheck {
+    u_long      coma_gcr;                       
+    u_long      coma_edsr;                      
+    u_long      coma_ter;                       
+    u_long      coma_elar;                      
+    u_long      coma_ehar;                      
+    u_long      coma_ldlr;                      
+    u_long      coma_ldhr;                      
+    u_long      coma_base0;                     
+    u_long      coma_base1;                     
+    u_long      coma_base2;                     
+    u_long      coma_cnfg0;                     
+    u_long      coma_cnfg1;                     
+    u_long      coma_cnfg2;                     
+    u_long      epic_dcsr;                      
+    u_long      epic_pear;                      
+    u_long      epic_sear;                      
+    u_long      epic_tbr1;                      
+    u_long      epic_tbr2;                      
+    u_long      epic_pbr1;                      
+    u_long      epic_pbr2;                      
+    u_long      epic_pmr1;                      
+    u_long      epic_pmr2;                      
+    u_long      epic_harx1;                     
+    u_long      epic_harx2;                     
+    u_long      epic_pmlt;                      
+    u_long      epic_tag0;                      
+    u_long      epic_tag1;                      
+    u_long      epic_tag2;                      
+    u_long      epic_tag3;                      
+    u_long      epic_tag4;                      
+    u_long      epic_tag5;                      
+    u_long      epic_tag6;                      
+    u_long      epic_tag7;                      
+    u_long      epic_data0;                     
+    u_long      epic_data1;                     
+    u_long      epic_data2;                     
+    u_long      epic_data3;                     
+    u_long      epic_data4;                     
+    u_long      epic_data5;                     
+    u_long      epic_data6;                     
+    u_long      epic_data7;                     
+};
+
+#define RTC_PORT(x)	(0x70 + (x))
+#define RTC_ADDR(x)	(0x80 | (x))
+#define RTC_ALWAYS_BCD	0
+
+#endif /* __ALPHA_ALCOR__H__ */

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