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Diffstat (limited to '')
| -rw-r--r-- | arch/mips/include/asm/octeon/octeon.h | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h new file mode 100644 index 000000000..08d48f37c --- /dev/null +++ b/arch/mips/include/asm/octeon/octeon.h @@ -0,0 +1,366 @@ +/* + * 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 OCTEON_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[OCTEON_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 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_check_cpu_bist(void); + +int octeon_prune_device_tree(void); +extern const char __appended_dtb; +extern const char __dtb_octeon_3xxx_begin; +extern const char __dtb_octeon_68xx_begin; + +/** + * 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; + +struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block); + +#endif /* __ASM_OCTEON_OCTEON_H */ |