arch/mips/include/asm/octeon/octeon.h - kernel/quantenna - Git at Google

 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
  * Copyright (C) 2004-2008 Cavium Networks
  */
 #ifndef __ASM_OCTEON_OCTEON_H
 #define __ASM_OCTEON_OCTEON_H

 #include <asm/octeon/cvmx.h>
 #include <asm/bitfield.h>

 extern uint64_t octeon_bootmem_alloc_range_phys(uint64_t size,
 						uint64_t alignment,
 						uint64_t min_addr,
 						uint64_t max_addr,
 						int do_locking);
 extern void *octeon_bootmem_alloc(uint64_t size, uint64_t alignment,
 				  int do_locking);
 extern void *octeon_bootmem_alloc_range(uint64_t size, uint64_t alignment,
 					uint64_t min_addr, uint64_t max_addr,
 					int do_locking);
 extern void *octeon_bootmem_alloc_named(uint64_t size, uint64_t alignment,
 					char *name);
 extern void *octeon_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
 					      uint64_t max_addr, uint64_t align,
 					      char *name);
 extern void *octeon_bootmem_alloc_named_address(uint64_t size, uint64_t address,
 						char *name);
 extern int octeon_bootmem_free_named(char *name);
 extern void octeon_bootmem_lock(void);
 extern void octeon_bootmem_unlock(void);

 extern int octeon_is_simulation(void);
 extern int octeon_is_pci_host(void);
 extern int octeon_usb_is_ref_clk(void);
 extern uint64_t octeon_get_clock_rate(void);
 extern u64 octeon_get_io_clock_rate(void);
 extern const char *octeon_board_type_string(void);
 extern const char *octeon_get_pci_interrupts(void);
 extern int octeon_get_southbridge_interrupt(void);
 extern int octeon_get_boot_coremask(void);
 extern int octeon_get_boot_num_arguments(void);
 extern const char *octeon_get_boot_argument(int arg);
 extern void octeon_hal_setup_reserved32(void);
 extern void octeon_user_io_init(void);

 extern void octeon_init_cvmcount(void);
 extern void octeon_setup_delays(void);
 extern void octeon_io_clk_delay(unsigned long);

 #define OCTEON_ARGV_MAX_ARGS	64
 #define OCTOEN_SERIAL_LEN	20

 struct octeon_boot_descriptor {
 #ifdef __BIG_ENDIAN_BITFIELD
 	/* Start of block referenced by assembly code - do not change! */
 	uint32_t desc_version;
 	uint32_t desc_size;
 	uint64_t stack_top;
 	uint64_t heap_base;
 	uint64_t heap_end;
 	/* Only used by bootloader */
 	uint64_t entry_point;
 	uint64_t desc_vaddr;
 	/* End of This block referenced by assembly code - do not change! */
 	uint32_t exception_base_addr;
 	uint32_t stack_size;
 	uint32_t heap_size;
 	/* Argc count for application. */
 	uint32_t argc;
 	uint32_t argv[OCTEON_ARGV_MAX_ARGS];

 #define	 BOOT_FLAG_INIT_CORE		(1 << 0)
 #define	 OCTEON_BL_FLAG_DEBUG		(1 << 1)
 #define	 OCTEON_BL_FLAG_NO_MAGIC	(1 << 2)
 	/* If set, use uart1 for console */
 #define	 OCTEON_BL_FLAG_CONSOLE_UART1	(1 << 3)
 	/* If set, use PCI console */
 #define	 OCTEON_BL_FLAG_CONSOLE_PCI	(1 << 4)
 	/* Call exit on break on serial port */
 #define	 OCTEON_BL_FLAG_BREAK		(1 << 5)

 	uint32_t flags;
 	uint32_t core_mask;
 	/* DRAM size in megabyes. */
 	uint32_t dram_size;
 	/* physical address of free memory descriptor block. */
 	uint32_t phy_mem_desc_addr;
 	/* used to pass flags from app to debugger. */
 	uint32_t debugger_flags_base_addr;
 	/* CPU clock speed, in hz. */
 	uint32_t eclock_hz;
 	/* DRAM clock speed, in hz. */
 	uint32_t dclock_hz;
 	/* SPI4 clock in hz. */
 	uint32_t spi_clock_hz;
 	uint16_t board_type;
 	uint8_t board_rev_major;
 	uint8_t board_rev_minor;
 	uint16_t chip_type;
 	uint8_t chip_rev_major;
 	uint8_t chip_rev_minor;
 	char board_serial_number[OCTOEN_SERIAL_LEN];
 	uint8_t mac_addr_base[6];
 	uint8_t mac_addr_count;
 	uint64_t cvmx_desc_vaddr;
 #else
 	uint32_t desc_size;
 	uint32_t desc_version;
 	uint64_t stack_top;
 	uint64_t heap_base;
 	uint64_t heap_end;
 	/* Only used by bootloader */
 	uint64_t entry_point;
 	uint64_t desc_vaddr;
 	/* End of This block referenced by assembly code - do not change! */
 	uint32_t stack_size;
 	uint32_t exception_base_addr;
 	uint32_t argc;
 	uint32_t heap_size;
 	/*
 	 * Argc count for application.
 	 * Warning low bit scrambled in little-endian.
 	 */
 	uint32_t argv[OCTEON_ARGV_MAX_ARGS];

 #define  BOOT_FLAG_INIT_CORE		(1 << 0)
 #define  OCTEON_BL_FLAG_DEBUG		(1 << 1)
 #define  OCTEON_BL_FLAG_NO_MAGIC	(1 << 2)
 	/* If set, use uart1 for console */
 #define  OCTEON_BL_FLAG_CONSOLE_UART1	(1 << 3)
 	/* If set, use PCI console */
 #define  OCTEON_BL_FLAG_CONSOLE_PCI	(1 << 4)
 	/* Call exit on break on serial port */
 #define  OCTEON_BL_FLAG_BREAK		(1 << 5)

 	uint32_t core_mask;
 	uint32_t flags;
 	/* physical address of free memory descriptor block. */
 	uint32_t phy_mem_desc_addr;
 	/* DRAM size in megabyes. */
 	uint32_t dram_size;
 	/* CPU clock speed, in hz. */
 	uint32_t eclock_hz;
 	/* used to pass flags from app to debugger. */
 	uint32_t debugger_flags_base_addr;
 	/* SPI4 clock in hz. */
 	uint32_t spi_clock_hz;
 	/* DRAM clock speed, in hz. */
 	uint32_t dclock_hz;
 	uint8_t chip_rev_minor;
 	uint8_t chip_rev_major;
 	uint16_t chip_type;
 	uint8_t board_rev_minor;
 	uint8_t board_rev_major;
 	uint16_t board_type;

 	uint64_t unused1[4]; /* Not even filled in by bootloader. */

 	uint64_t cvmx_desc_vaddr;
 #endif
 };

 union octeon_cvmemctl {
 	uint64_t u64;
 	struct {
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t tlbbist:1,
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t l1cbist:1,
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t l1dbist:1,
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t dcmbist:1,
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t ptgbist:1,
 		/* RO 1 = BIST fail, 0 = BIST pass */
 		__BITFIELD_FIELD(uint64_t wbfbist:1,
 		/* Reserved */
 		__BITFIELD_FIELD(uint64_t reserved:17,
 		/* OCTEON II - TLB replacement policy: 0 = bitmask LRU; 1 = NLU.
 		 * This field selects between the TLB replacement policies:
 		 * bitmask LRU or NLU. Bitmask LRU maintains a mask of
 		 * recently used TLB entries and avoids them as new entries
 		 * are allocated. NLU simply guarantees that the next
 		 * allocation is not the last used TLB entry. */
 		__BITFIELD_FIELD(uint64_t tlbnlu:1,
 		/* OCTEON II - Selects the bit in the counter used for
 		 * releasing a PAUSE. This counter trips every 2(8+PAUSETIME)
 		 * cycles. If not already released, the cnMIPS II core will
 		 * always release a given PAUSE instruction within
 		 * 2(8+PAUSETIME). If the counter trip happens to line up,
 		 * the cnMIPS II core may release the PAUSE instantly. */
 		__BITFIELD_FIELD(uint64_t pausetime:3,
 		/* OCTEON II - This field is an extension of
 		 * CvmMemCtl[DIDTTO] */
 		__BITFIELD_FIELD(uint64_t didtto2:1,
 		/* R/W If set, marked write-buffer entries time out
 		 * the same as as other entries; if clear, marked
 		 * write-buffer entries use the maximum timeout. */
 		__BITFIELD_FIELD(uint64_t dismarkwblongto:1,
 		/* R/W If set, a merged store does not clear the
 		 * write-buffer entry timeout state. */
 		__BITFIELD_FIELD(uint64_t dismrgclrwbto:1,
 		/* R/W Two bits that are the MSBs of the resultant
 		 * CVMSEG LM word location for an IOBDMA. The other 8
 		 * bits come from the SCRADDR field of the IOBDMA. */
 		__BITFIELD_FIELD(uint64_t iobdmascrmsb:2,
 		/* R/W If set, SYNCWS and SYNCS only order marked
 		 * stores; if clear, SYNCWS and SYNCS only order
 		 * unmarked stores. SYNCWSMARKED has no effect when
 		 * DISSYNCWS is set. */
 		__BITFIELD_FIELD(uint64_t syncwsmarked:1,
 		/* R/W If set, SYNCWS acts as SYNCW and SYNCS acts as
 		 * SYNC. */
 		__BITFIELD_FIELD(uint64_t dissyncws:1,
 		/* R/W If set, no stall happens on write buffer
 		 * full. */
 		__BITFIELD_FIELD(uint64_t diswbfst:1,
 		/* R/W If set (and SX set), supervisor-level
 		 * loads/stores can use XKPHYS addresses with
 		 * VA<48>==0 */
 		__BITFIELD_FIELD(uint64_t xkmemenas:1,
 		/* R/W If set (and UX set), user-level loads/stores
 		 * can use XKPHYS addresses with VA<48>==0 */
 		__BITFIELD_FIELD(uint64_t xkmemenau:1,
 		/* R/W If set (and SX set), supervisor-level
 		 * loads/stores can use XKPHYS addresses with
 		 * VA<48>==1 */
 		__BITFIELD_FIELD(uint64_t xkioenas:1,
 		/* R/W If set (and UX set), user-level loads/stores
 		 * can use XKPHYS addresses with VA<48>==1 */
 		__BITFIELD_FIELD(uint64_t xkioenau:1,
 		/* R/W If set, all stores act as SYNCW (NOMERGE must
 		 * be set when this is set) RW, reset to 0. */
 		__BITFIELD_FIELD(uint64_t allsyncw:1,
 		/* R/W If set, no stores merge, and all stores reach
 		 * the coherent bus in order. */
 		__BITFIELD_FIELD(uint64_t nomerge:1,
 		/* R/W Selects the bit in the counter used for DID
 		 * time-outs 0 = 231, 1 = 230, 2 = 229, 3 =
 		 * 214. Actual time-out is between 1x and 2x this
 		 * interval. For example, with DIDTTO=3, expiration
 		 * interval is between 16K and 32K. */
 		__BITFIELD_FIELD(uint64_t didtto:2,
 		/* R/W If set, the (mem) CSR clock never turns off. */
 		__BITFIELD_FIELD(uint64_t csrckalwys:1,
 		/* R/W If set, mclk never turns off. */
 		__BITFIELD_FIELD(uint64_t mclkalwys:1,
 		/* R/W Selects the bit in the counter used for write
 		 * buffer flush time-outs (WBFLT+11) is the bit
 		 * position in an internal counter used to determine
 		 * expiration. The write buffer expires between 1x and
 		 * 2x this interval. For example, with WBFLT = 0, a
 		 * write buffer expires between 2K and 4K cycles after
 		 * the write buffer entry is allocated. */
 		__BITFIELD_FIELD(uint64_t wbfltime:3,
 		/* R/W If set, do not put Istream in the L2 cache. */
 		__BITFIELD_FIELD(uint64_t istrnol2:1,
 		/* R/W The write buffer threshold. */
 		__BITFIELD_FIELD(uint64_t wbthresh:4,
 		/* Reserved */
 		__BITFIELD_FIELD(uint64_t reserved2:2,
 		/* R/W If set, CVMSEG is available for loads/stores in
 		 * kernel/debug mode. */
 		__BITFIELD_FIELD(uint64_t cvmsegenak:1,
 		/* R/W If set, CVMSEG is available for loads/stores in
 		 * supervisor mode. */
 		__BITFIELD_FIELD(uint64_t cvmsegenas:1,
 		/* R/W If set, CVMSEG is available for loads/stores in
 		 * user mode. */
 		__BITFIELD_FIELD(uint64_t cvmsegenau:1,
 		/* R/W Size of local memory in cache blocks, 54 (6912
 		 * bytes) is max legal value. */
 		__BITFIELD_FIELD(uint64_t lmemsz:6,
 		;)))))))))))))))))))))))))))))))))
 	} s;
 };

 extern void octeon_write_lcd(const char *s);
 extern void octeon_check_cpu_bist(void);
 extern int octeon_get_boot_uart(void);

 struct uart_port;
 extern unsigned int octeon_serial_in(struct uart_port *, int);
 extern void octeon_serial_out(struct uart_port *, int, int);

 /**
  * Write a 32bit value to the Octeon NPI register space
  *
  * @address: Address to write to
  * @val:     Value to write
  */
 static inline void octeon_npi_write32(uint64_t address, uint32_t val)
 {
 	cvmx_write64_uint32(address ^ 4, val);
 	cvmx_read64_uint32(address ^ 4);
 }

 #ifdef CONFIG_SMP
 void octeon_setup_smp(void);
 #else
 static inline void octeon_setup_smp(void) {}
 #endif

 struct irq_domain;
 struct device_node;
 struct irq_data;
 struct irq_chip;
 void octeon_ciu3_mbox_send(int cpu, unsigned int mbox);
 int octeon_irq_ciu3_xlat(struct irq_domain *d,
 			 struct device_node *node,
 			 const u32 *intspec,
 			 unsigned int intsize,
 			 unsigned long *out_hwirq,
 			 unsigned int *out_type);
 void octeon_irq_ciu3_enable(struct irq_data *data);
 void octeon_irq_ciu3_disable(struct irq_data *data);
 void octeon_irq_ciu3_ack(struct irq_data *data);
 void octeon_irq_ciu3_mask(struct irq_data *data);
 void octeon_irq_ciu3_mask_ack(struct irq_data *data);
 int octeon_irq_ciu3_mapx(struct irq_domain *d, unsigned int virq,
 			 irq_hw_number_t hw, struct irq_chip *chip);

 /* Octeon multiplier save/restore routines from octeon_switch.S */
 void octeon_mult_save(void);
 void octeon_mult_restore(void);
 void octeon_mult_save_end(void);
 void octeon_mult_restore_end(void);
 void octeon_mult_save3(void);
 void octeon_mult_save3_end(void);
 void octeon_mult_save2(void);
 void octeon_mult_save2_end(void);
 void octeon_mult_restore3(void);
 void octeon_mult_restore3_end(void);
 void octeon_mult_restore2(void);
 void octeon_mult_restore2_end(void);

 /**
  * Read a 32bit value from the Octeon NPI register space
  *
  * @address: Address to read
  * Returns The result
  */
 static inline uint32_t octeon_npi_read32(uint64_t address)
 {
 	return cvmx_read64_uint32(address ^ 4);
 }

 extern struct cvmx_bootinfo *octeon_bootinfo;

 extern uint64_t octeon_bootloader_entry_addr;

 extern void (*octeon_irq_setup_secondary)(void);

 typedef void (*octeon_irq_ip4_handler_t)(void);
 void octeon_irq_set_ip4_handler(octeon_irq_ip4_handler_t);

 extern void octeon_fixup_irqs(void);

 extern struct semaphore octeon_bootbus_sem;

 #endif /* __ASM_OCTEON_OCTEON_H */
	/*
	* This file is subject to the terms and conditions of the GNU General Public
	* License. See the file "COPYING" in the main directory of this archive
	* for more details.
	*
	* Copyright (C) 2004-2008 Cavium Networks
	*/
	#ifndef __ASM_OCTEON_OCTEON_H
	#define __ASM_OCTEON_OCTEON_H

	#include <asm/octeon/cvmx.h>
	#include <asm/bitfield.h>

	extern uint64_t octeon_bootmem_alloc_range_phys(uint64_t size,
	uint64_t alignment,
	uint64_t min_addr,
	uint64_t max_addr,
	int do_locking);
	extern void *octeon_bootmem_alloc(uint64_t size, uint64_t alignment,
	int do_locking);
	extern void *octeon_bootmem_alloc_range(uint64_t size, uint64_t alignment,
	uint64_t min_addr, uint64_t max_addr,
	int do_locking);
	extern void *octeon_bootmem_alloc_named(uint64_t size, uint64_t alignment,
	char *name);
	extern void *octeon_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
	uint64_t max_addr, uint64_t align,
	char *name);
	extern void *octeon_bootmem_alloc_named_address(uint64_t size, uint64_t address,
	char *name);
	extern int octeon_bootmem_free_named(char *name);
	extern void octeon_bootmem_lock(void);
	extern void octeon_bootmem_unlock(void);

	extern int octeon_is_simulation(void);
	extern int octeon_is_pci_host(void);
	extern int octeon_usb_is_ref_clk(void);
	extern uint64_t octeon_get_clock_rate(void);
	extern u64 octeon_get_io_clock_rate(void);
	extern const char *octeon_board_type_string(void);
	extern const char *octeon_get_pci_interrupts(void);
	extern int octeon_get_southbridge_interrupt(void);
	extern int octeon_get_boot_coremask(void);
	extern int octeon_get_boot_num_arguments(void);
	extern const char *octeon_get_boot_argument(int arg);
	extern void octeon_hal_setup_reserved32(void);
	extern void octeon_user_io_init(void);

	extern void octeon_init_cvmcount(void);
	extern void octeon_setup_delays(void);
	extern void octeon_io_clk_delay(unsigned long);

	#define OCTEON_ARGV_MAX_ARGS 64
	#define OCTOEN_SERIAL_LEN 20

	struct octeon_boot_descriptor {
	#ifdef __BIG_ENDIAN_BITFIELD
	/* Start of block referenced by assembly code - do not change! */
	uint32_t desc_version;
	uint32_t desc_size;
	uint64_t stack_top;
	uint64_t heap_base;
	uint64_t heap_end;
	/* Only used by bootloader */
	uint64_t entry_point;
	uint64_t desc_vaddr;
	/* End of This block referenced by assembly code - do not change! */
	uint32_t exception_base_addr;
	uint32_t stack_size;
	uint32_t heap_size;
	/* Argc count for application. */
	uint32_t argc;
	uint32_t argv[OCTEON_ARGV_MAX_ARGS];

	#define BOOT_FLAG_INIT_CORE (1 << 0)
	#define OCTEON_BL_FLAG_DEBUG (1 << 1)
	#define OCTEON_BL_FLAG_NO_MAGIC (1 << 2)
	/* If set, use uart1 for console */
	#define OCTEON_BL_FLAG_CONSOLE_UART1 (1 << 3)
	/* If set, use PCI console */
	#define OCTEON_BL_FLAG_CONSOLE_PCI (1 << 4)
	/* Call exit on break on serial port */
	#define OCTEON_BL_FLAG_BREAK (1 << 5)

	uint32_t flags;
	uint32_t core_mask;
	/* DRAM size in megabyes. */
	uint32_t dram_size;
	/* physical address of free memory descriptor block. */
	uint32_t phy_mem_desc_addr;
	/* used to pass flags from app to debugger. */
	uint32_t debugger_flags_base_addr;
	/* CPU clock speed, in hz. */
	uint32_t eclock_hz;
	/* DRAM clock speed, in hz. */
	uint32_t dclock_hz;
	/* SPI4 clock in hz. */
	uint32_t spi_clock_hz;
	uint16_t board_type;
	uint8_t board_rev_major;
	uint8_t board_rev_minor;
	uint16_t chip_type;
	uint8_t chip_rev_major;
	uint8_t chip_rev_minor;
	char board_serial_number[OCTOEN_SERIAL_LEN];
	uint8_t mac_addr_base[6];
	uint8_t mac_addr_count;
	uint64_t cvmx_desc_vaddr;
	#else
	uint32_t desc_size;
	uint32_t desc_version;
	uint64_t stack_top;
	uint64_t heap_base;
	uint64_t heap_end;
	/* Only used by bootloader */
	uint64_t entry_point;
	uint64_t desc_vaddr;
	/* End of This block referenced by assembly code - do not change! */
	uint32_t stack_size;
	uint32_t exception_base_addr;
	uint32_t argc;
	uint32_t heap_size;
	/*
	* Argc count for application.
	* Warning low bit scrambled in little-endian.
	*/
	uint32_t argv[OCTEON_ARGV_MAX_ARGS];

	#define BOOT_FLAG_INIT_CORE (1 << 0)
	#define OCTEON_BL_FLAG_DEBUG (1 << 1)
	#define OCTEON_BL_FLAG_NO_MAGIC (1 << 2)
	/* If set, use uart1 for console */
	#define OCTEON_BL_FLAG_CONSOLE_UART1 (1 << 3)
	/* If set, use PCI console */
	#define OCTEON_BL_FLAG_CONSOLE_PCI (1 << 4)
	/* Call exit on break on serial port */
	#define OCTEON_BL_FLAG_BREAK (1 << 5)

	uint32_t core_mask;
	uint32_t flags;
	/* physical address of free memory descriptor block. */
	uint32_t phy_mem_desc_addr;
	/* DRAM size in megabyes. */
	uint32_t dram_size;
	/* CPU clock speed, in hz. */
	uint32_t eclock_hz;
	/* used to pass flags from app to debugger. */
	uint32_t debugger_flags_base_addr;
	/* SPI4 clock in hz. */
	uint32_t spi_clock_hz;
	/* DRAM clock speed, in hz. */
	uint32_t dclock_hz;
	uint8_t chip_rev_minor;
	uint8_t chip_rev_major;
	uint16_t chip_type;
	uint8_t board_rev_minor;
	uint8_t board_rev_major;
	uint16_t board_type;

	uint64_t unused1[4]; /* Not even filled in by bootloader. */

	uint64_t cvmx_desc_vaddr;
	#endif
	};

	union octeon_cvmemctl {
	uint64_t u64;
	struct {
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t tlbbist:1,
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t l1cbist:1,
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t l1dbist:1,
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t dcmbist:1,
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t ptgbist:1,
	/* RO 1 = BIST fail, 0 = BIST pass */
	__BITFIELD_FIELD(uint64_t wbfbist:1,
	/* Reserved */
	__BITFIELD_FIELD(uint64_t reserved:17,
	/* OCTEON II - TLB replacement policy: 0 = bitmask LRU; 1 = NLU.
	* This field selects between the TLB replacement policies:
	* bitmask LRU or NLU. Bitmask LRU maintains a mask of
	* recently used TLB entries and avoids them as new entries
	* are allocated. NLU simply guarantees that the next
	* allocation is not the last used TLB entry. */
	__BITFIELD_FIELD(uint64_t tlbnlu:1,
	/* OCTEON II - Selects the bit in the counter used for
	* releasing a PAUSE. This counter trips every 2(8+PAUSETIME)
	* cycles. If not already released, the cnMIPS II core will
	* always release a given PAUSE instruction within
	* 2(8+PAUSETIME). If the counter trip happens to line up,
	* the cnMIPS II core may release the PAUSE instantly. */
	__BITFIELD_FIELD(uint64_t pausetime:3,
	/* OCTEON II - This field is an extension of
	* CvmMemCtl[DIDTTO] */
	__BITFIELD_FIELD(uint64_t didtto2:1,
	/* R/W If set, marked write-buffer entries time out
	* the same as as other entries; if clear, marked
	* write-buffer entries use the maximum timeout. */
	__BITFIELD_FIELD(uint64_t dismarkwblongto:1,
	/* R/W If set, a merged store does not clear the
	* write-buffer entry timeout state. */
	__BITFIELD_FIELD(uint64_t dismrgclrwbto:1,
	/* R/W Two bits that are the MSBs of the resultant
	* CVMSEG LM word location for an IOBDMA. The other 8
	* bits come from the SCRADDR field of the IOBDMA. */
	__BITFIELD_FIELD(uint64_t iobdmascrmsb:2,
	/* R/W If set, SYNCWS and SYNCS only order marked
	* stores; if clear, SYNCWS and SYNCS only order
	* unmarked stores. SYNCWSMARKED has no effect when
	* DISSYNCWS is set. */
	__BITFIELD_FIELD(uint64_t syncwsmarked:1,
	/* R/W If set, SYNCWS acts as SYNCW and SYNCS acts as
	* SYNC. */
	__BITFIELD_FIELD(uint64_t dissyncws:1,
	/* R/W If set, no stall happens on write buffer
	* full. */
	__BITFIELD_FIELD(uint64_t diswbfst:1,
	/* R/W If set (and SX set), supervisor-level
	* loads/stores can use XKPHYS addresses with
	* VA<48>==0 */
	__BITFIELD_FIELD(uint64_t xkmemenas:1,
	/* R/W If set (and UX set), user-level loads/stores
	* can use XKPHYS addresses with VA<48>==0 */
	__BITFIELD_FIELD(uint64_t xkmemenau:1,
	/* R/W If set (and SX set), supervisor-level
	* loads/stores can use XKPHYS addresses with
	* VA<48>==1 */
	__BITFIELD_FIELD(uint64_t xkioenas:1,
	/* R/W If set (and UX set), user-level loads/stores
	* can use XKPHYS addresses with VA<48>==1 */
	__BITFIELD_FIELD(uint64_t xkioenau:1,
	/* R/W If set, all stores act as SYNCW (NOMERGE must
	* be set when this is set) RW, reset to 0. */
	__BITFIELD_FIELD(uint64_t allsyncw:1,
	/* R/W If set, no stores merge, and all stores reach
	* the coherent bus in order. */
	__BITFIELD_FIELD(uint64_t nomerge:1,
	/* R/W Selects the bit in the counter used for DID
	* time-outs 0 = 231, 1 = 230, 2 = 229, 3 =
	* 214. Actual time-out is between 1x and 2x this
	* interval. For example, with DIDTTO=3, expiration
	* interval is between 16K and 32K. */
	__BITFIELD_FIELD(uint64_t didtto:2,
	/* R/W If set, the (mem) CSR clock never turns off. */
	__BITFIELD_FIELD(uint64_t csrckalwys:1,
	/* R/W If set, mclk never turns off. */
	__BITFIELD_FIELD(uint64_t mclkalwys:1,
	/* R/W Selects the bit in the counter used for write
	* buffer flush time-outs (WBFLT+11) is the bit
	* position in an internal counter used to determine
	* expiration. The write buffer expires between 1x and
	* 2x this interval. For example, with WBFLT = 0, a
	* write buffer expires between 2K and 4K cycles after
	* the write buffer entry is allocated. */
	__BITFIELD_FIELD(uint64_t wbfltime:3,
	/* R/W If set, do not put Istream in the L2 cache. */
	__BITFIELD_FIELD(uint64_t istrnol2:1,
	/* R/W The write buffer threshold. */
	__BITFIELD_FIELD(uint64_t wbthresh:4,
	/* Reserved */
	__BITFIELD_FIELD(uint64_t reserved2:2,
	/* R/W If set, CVMSEG is available for loads/stores in
	* kernel/debug mode. */
	__BITFIELD_FIELD(uint64_t cvmsegenak:1,
	/* R/W If set, CVMSEG is available for loads/stores in
	* supervisor mode. */
	__BITFIELD_FIELD(uint64_t cvmsegenas:1,
	/* R/W If set, CVMSEG is available for loads/stores in
	* user mode. */
	__BITFIELD_FIELD(uint64_t cvmsegenau:1,
	/* R/W Size of local memory in cache blocks, 54 (6912
	* bytes) is max legal value. */
	__BITFIELD_FIELD(uint64_t lmemsz:6,
	;)))))))))))))))))))))))))))))))))
	} s;
	};

	extern void octeon_write_lcd(const char *s);
	extern void octeon_check_cpu_bist(void);
	extern int octeon_get_boot_uart(void);

	struct uart_port;
	extern unsigned int octeon_serial_in(struct uart_port *, int);
	extern void octeon_serial_out(struct uart_port *, int, int);

	/**
	* Write a 32bit value to the Octeon NPI register space
	*
	* @address: Address to write to
	* @val: Value to write
	*/
	static inline void octeon_npi_write32(uint64_t address, uint32_t val)
	{
	cvmx_write64_uint32(address ^ 4, val);
	cvmx_read64_uint32(address ^ 4);
	}

	#ifdef CONFIG_SMP
	void octeon_setup_smp(void);
	#else
	static inline void octeon_setup_smp(void) {}
	#endif

	struct irq_domain;
	struct device_node;
	struct irq_data;
	struct irq_chip;
	void octeon_ciu3_mbox_send(int cpu, unsigned int mbox);
	int octeon_irq_ciu3_xlat(struct irq_domain *d,
	struct device_node *node,
	const u32 *intspec,
	unsigned int intsize,
	unsigned long *out_hwirq,
	unsigned int *out_type);
	void octeon_irq_ciu3_enable(struct irq_data *data);
	void octeon_irq_ciu3_disable(struct irq_data *data);
	void octeon_irq_ciu3_ack(struct irq_data *data);
	void octeon_irq_ciu3_mask(struct irq_data *data);
	void octeon_irq_ciu3_mask_ack(struct irq_data *data);
	int octeon_irq_ciu3_mapx(struct irq_domain *d, unsigned int virq,
	irq_hw_number_t hw, struct irq_chip *chip);

	/* Octeon multiplier save/restore routines from octeon_switch.S */
	void octeon_mult_save(void);
	void octeon_mult_restore(void);
	void octeon_mult_save_end(void);
	void octeon_mult_restore_end(void);
	void octeon_mult_save3(void);
	void octeon_mult_save3_end(void);
	void octeon_mult_save2(void);
	void octeon_mult_save2_end(void);
	void octeon_mult_restore3(void);
	void octeon_mult_restore3_end(void);
	void octeon_mult_restore2(void);
	void octeon_mult_restore2_end(void);

	/**
	* Read a 32bit value from the Octeon NPI register space
	*
	* @address: Address to read
	* Returns The result
	*/
	static inline uint32_t octeon_npi_read32(uint64_t address)
	{
	return cvmx_read64_uint32(address ^ 4);
	}

	extern struct cvmx_bootinfo *octeon_bootinfo;

	extern uint64_t octeon_bootloader_entry_addr;

	extern void (*octeon_irq_setup_secondary)(void);

	typedef void (*octeon_irq_ip4_handler_t)(void);
	void octeon_irq_set_ip4_handler(octeon_irq_ip4_handler_t);

	extern void octeon_fixup_irqs(void);

	extern struct semaphore octeon_bootbus_sem;

	#endif /* __ASM_OCTEON_OCTEON_H */