Initial commit; kernel source import

arch/cris/include/uapi/arch-v10/arch/Kbuild

@@ -0,0 +1,5 @@
+# UAPI Header export list
+header-y += sv_addr.agh
+header-y += sv_addr_ag.h
+header-y += svinto.h
+header-y += user.h

arch/cris/include/uapi/arch-v10/arch/sv_addr_ag.h

@@ -0,0 +1,139 @@
+/*!**************************************************************************
+*!                                                            
+*! MACROS:
+*!   IO_MASK(reg,field)
+*!   IO_STATE(reg,field,state)
+*!   IO_EXTRACT(reg,field,val)
+*!   IO_STATE_VALUE(reg,field,state)
+*!   IO_BITNR(reg,field)
+*!   IO_WIDTH(reg,field)
+*!   IO_FIELD(reg,field,val)
+*!   IO_RD(reg)
+*!   All moderegister addresses and fields of these.
+*!
+*!**************************************************************************/
+
+#ifndef __sv_addr_ag_h__
+#define __sv_addr_ag_h__
+
+
+#define __test_sv_addr__ 0
+
+/*------------------------------------------------------------
+!* General macros to manipulate moderegisters.
+!*-----------------------------------------------------------*/
+
+/* IO_MASK returns a mask for a specified bitfield in a register.
+   Note that this macro doesn't work when field width is 32 bits. */
+#define IO_MASK(reg, field) IO_MASK_ (reg##_, field##_)
+#define IO_MASK_(reg_, field_) \
+    ( ( ( 1 << reg_##_##field_##_WIDTH ) - 1 ) << reg_##_##field_##_BITNR )
+
+/* IO_STATE returns a constant corresponding to a one of the symbolic
+   states that the bitfield can have. (Shifted to correct position)  */
+#define IO_STATE(reg, field, state) IO_STATE_ (reg##_, field##_, _##state)
+#define IO_STATE_(reg_, field_, _state) \
+    ( reg_##_##field_##_state << reg_##_##field_##_BITNR )
+
+/* IO_EXTRACT returns the masked and shifted value corresponding to the
+   bitfield can have. */
+#define IO_EXTRACT(reg, field, val) IO_EXTRACT_ (reg##_, field##_, val)
+#define IO_EXTRACT_(reg_, field_, val) ( (( ( ( 1 << reg_##_##field_##_WIDTH ) \
+     - 1 ) << reg_##_##field_##_BITNR ) & (val)) >> reg_##_##field_##_BITNR )
+
+/* IO_STATE_VALUE returns a constant corresponding to a one of the symbolic
+   states that the bitfield can have. (Not shifted)  */
+#define IO_STATE_VALUE(reg, field, state) \
+    IO_STATE_VALUE_ (reg##_, field##_, _##state)
+#define IO_STATE_VALUE_(reg_, field_, _state) ( reg_##_##field_##_state )
+
+/* IO_FIELD shifts the val parameter to be aligned with the bitfield
+   specified. */
+#define IO_FIELD(reg, field, val) IO_FIELD_ (reg##_, field##_, val)
+#define IO_FIELD_(reg_, field_, val) ((val) << reg_##_##field_##_BITNR)
+
+/* IO_BITNR returns the starting bitnumber of a bitfield. Bit 0 is
+   LSB and the returned bitnumber is LSB of the field. */
+#define IO_BITNR(reg, field) IO_BITNR_ (reg##_, field##_)
+#define IO_BITNR_(reg_, field_) (reg_##_##field_##_BITNR)
+
+/* IO_WIDTH returns the width, in bits, of a bitfield. */
+#define IO_WIDTH(reg, field) IO_WIDTH_ (reg##_, field##_)
+#define IO_WIDTH_(reg_, field_) (reg_##_##field_##_WIDTH)
+
+/*--- Obsolete. Kept for backw compatibility. ---*/
+/* Reads (or writes) a byte/uword/udword from the specified mode
+   register. */
+#define IO_RD(reg) (*(volatile u32*)(reg))
+#define IO_RD_B(reg) (*(volatile u8*)(reg))
+#define IO_RD_W(reg) (*(volatile u16*)(reg))
+#define IO_RD_D(reg) (*(volatile u32*)(reg))
+
+/*------------------------------------------------------------
+!* Start addresses of the different memory areas.
+!*-----------------------------------------------------------*/
+
+#define MEM_CSE0_START (0x00000000)
+#define MEM_CSE0_SIZE (0x04000000)
+#define MEM_CSE1_START (0x04000000)
+#define MEM_CSE1_SIZE (0x04000000)
+#define MEM_CSR0_START (0x08000000)
+#define MEM_CSR1_START (0x0c000000)
+#define MEM_CSP0_START (0x10000000)
+#define MEM_CSP1_START (0x14000000)
+#define MEM_CSP2_START (0x18000000)
+#define MEM_CSP3_START (0x1c000000)
+#define MEM_CSP4_START (0x20000000)
+#define MEM_CSP5_START (0x24000000)
+#define MEM_CSP6_START (0x28000000)
+#define MEM_CSP7_START (0x2c000000)
+#define MEM_DRAM_START (0x40000000)
+
+#define MEM_NON_CACHEABLE (0x80000000)
+
+/*------------------------------------------------------------
+!* Type casts used in mode register macros, making pointer
+!* dereferencing possible. Empty in assembler.
+!*-----------------------------------------------------------*/
+
+#ifndef __ASSEMBLER__
+# define  IO_TYPECAST_UDWORD  (volatile u32*)
+# define  IO_TYPECAST_RO_UDWORD  (const volatile u32*)
+# define  IO_TYPECAST_UWORD  (volatile u16*)
+# define  IO_TYPECAST_RO_UWORD  (const volatile u16*)
+# define  IO_TYPECAST_BYTE  (volatile u8*)
+# define  IO_TYPECAST_RO_BYTE  (const volatile u8*)
+#else
+# define  IO_TYPECAST_UDWORD
+# define  IO_TYPECAST_RO_UDWORD
+# define  IO_TYPECAST_UWORD
+# define  IO_TYPECAST_RO_UWORD
+# define  IO_TYPECAST_BYTE
+# define  IO_TYPECAST_RO_BYTE
+#endif
+
+/*------------------------------------------------------------*/
+
+#include <arch/sv_addr.agh>
+
+#if __test_sv_addr__
+/* IO_MASK( R_BUS_CONFIG , CE ) */
+IO_MASK( R_WAITSTATES , SRAM_WS )
+IO_MASK( R_TEST , W32 )
+
+IO_STATE( R_BUS_CONFIG, CE, DISABLE )
+IO_STATE( R_BUS_CONFIG, CE, ENABLE )
+
+IO_STATE( R_DRAM_TIMING, REF, IVAL2 )
+
+IO_MASK( R_DRAM_TIMING, REF )
+
+IO_MASK( R_EXT_DMA_0_STAT, TFR_COUNT ) >> IO_BITNR( R_EXT_DMA_0_STAT, TFR_COUNT )
+
+IO_RD(R_EXT_DMA_0_STAT) & IO_MASK( R_EXT_DMA_0_STAT, S ) 
+   == IO_STATE( R_EXT_DMA_0_STAT, S, STARTED )
+#endif
+
+
+#endif  /* ifndef __sv_addr_ag_h__ */
+

arch/cris/include/uapi/arch-v10/arch/svinto.h

@@ -0,0 +1,64 @@
+#ifndef _ASM_CRIS_SVINTO_H
+#define _ASM_CRIS_SVINTO_H
+
+#include <arch/sv_addr_ag.h>
+
+extern unsigned int genconfig_shadow; /* defined and set in head.S */
+
+/* dma stuff */
+
+enum {                          /* Available in:  */
+	d_eol      = (1 << 0),  /* flags          */
+	d_eop      = (1 << 1),  /* flags & status */
+	d_wait     = (1 << 2),  /* flags          */
+	d_int      = (1 << 3),  /* flags          */
+	d_txerr    = (1 << 4),  /* flags          */
+	d_stop     = (1 << 4),  /*         status */
+	d_ecp      = (1 << 4),  /* flags & status */
+	d_pri      = (1 << 5),  /* flags & status */
+	d_alignerr = (1 << 6),  /*         status */
+	d_crcerr   = (1 << 7)   /*         status */
+};
+
+/* Do remember that DMA does not go through the MMU and needs
+ * a real physical address, not an address virtually mapped or
+ * paged. Therefore the buf/next ptrs below are unsigned long instead
+ * of void * to give a warning if you try to put a pointer directly
+ * to them instead of going through virt_to_phys/phys_to_virt.
+ */
+
+typedef struct etrax_dma_descr {
+	unsigned short sw_len;                /* 0-1 */
+	unsigned short ctrl;                  /* 2-3 */
+	unsigned long  next;                  /* 4-7 */
+	unsigned long  buf;                   /* 8-11 */
+	unsigned short hw_len;                /* 12-13 */
+	unsigned char  status;                /* 14 */
+	unsigned char  fifo_len;              /* 15 */
+} etrax_dma_descr;
+
+
+/* Use this for constant numbers only */
+#define RESET_DMA_NUM( n ) \
+  *R_DMA_CH##n##_CMD = IO_STATE( R_DMA_CH0_CMD, cmd, reset )
+
+/* Use this for constant numbers or symbols, 
+ * having two macros makes it possible to use constant expressions. 
+ */
+#define RESET_DMA( n ) RESET_DMA_NUM( n )
+
+
+/* Use this for constant numbers only */
+#define WAIT_DMA_NUM( n ) \
+  while( (*R_DMA_CH##n##_CMD & IO_MASK( R_DMA_CH0_CMD, cmd )) != \
+         IO_STATE( R_DMA_CH0_CMD, cmd, hold ) )
+
+/* Use this for constant numbers or symbols 
+ * having two macros makes it possible to use constant expressions. 
+ */
+#define WAIT_DMA( n ) WAIT_DMA_NUM( n )
+
+extern void prepare_rx_descriptor(struct etrax_dma_descr *desc);
+extern void flush_etrax_cache(void);
+
+#endif

arch/cris/include/uapi/arch-v10/arch/user.h

@@ -0,0 +1,46 @@
+#ifndef __ASM_CRIS_ARCH_USER_H
+#define __ASM_CRIS_ARCH_USER_H
+
+/* User mode registers, used for core dumps. In order to keep ELF_NGREG
+   sensible we let all registers be 32 bits. The csr registers are included
+   for future use. */
+struct user_regs_struct {
+        unsigned long r0;       /* General registers. */
+        unsigned long r1;
+        unsigned long r2;
+        unsigned long r3;
+        unsigned long r4;
+        unsigned long r5;
+        unsigned long r6;
+        unsigned long r7;
+        unsigned long r8;
+        unsigned long r9;
+        unsigned long r10;
+        unsigned long r11;
+        unsigned long r12;
+        unsigned long r13;
+        unsigned long sp;       /* Stack pointer. */
+        unsigned long pc;       /* Program counter. */
+        unsigned long p0;       /* Constant zero (only 8 bits). */
+        unsigned long vr;       /* Version register (only 8 bits). */
+        unsigned long p2;       /* Reserved. */
+        unsigned long p3;       /* Reserved. */
+        unsigned long p4;       /* Constant zero (only 16 bits). */
+        unsigned long ccr;      /* Condition code register (only 16 bits). */
+        unsigned long p6;       /* Reserved. */
+        unsigned long mof;      /* Multiply overflow register. */
+        unsigned long p8;       /* Constant zero. */
+        unsigned long ibr;      /* Not accessible. */
+        unsigned long irp;      /* Not accessible. */
+        unsigned long srp;      /* Subroutine return pointer. */
+        unsigned long bar;      /* Not accessible. */
+        unsigned long dccr;     /* Dword condition code register. */
+        unsigned long brp;      /* Not accessible. */
+        unsigned long usp;      /* User-mode stack pointer. Same as sp when 
+                                   in user mode. */
+        unsigned long csrinstr; /* Internal status registers. */
+        unsigned long csraddr;
+        unsigned long csrdata;
+};
+
+#endif