From 534c158ea64b8977c7971a0a609018ab48c5c055 Mon Sep 17 00:00:00 2001 From: David Daney Date: Fri, 20 Mar 2015 19:11:56 +0300 Subject: [PATCH] MIPS: Octeon: Handle bootloader structures in little-endian mode. Compensate for the differences in the layout of in-memory bootloader information as seen from little-endian mode. Signed-off-by: David Daney Signed-off-by: Aleksey Makarov Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9590/ Signed-off-by: Ralf Baechle --- arch/mips/cavium-octeon/octeon_boot.h | 23 ++++++++ arch/mips/include/asm/octeon/cvmx-bootinfo.h | 55 ++++++++++++++++++++ 2 files changed, 78 insertions(+) diff --git a/arch/mips/cavium-octeon/octeon_boot.h b/arch/mips/cavium-octeon/octeon_boot.h index 7b066bbca86d..a6ce7c43e0ae 100644 --- a/arch/mips/cavium-octeon/octeon_boot.h +++ b/arch/mips/cavium-octeon/octeon_boot.h @@ -37,11 +37,13 @@ struct boot_init_vector { /* similar to bootloader's linux_app_boot_info but without global data */ struct linux_app_boot_info { +#ifdef __BIG_ENDIAN_BITFIELD uint32_t labi_signature; uint32_t start_core0_addr; uint32_t avail_coremask; uint32_t pci_console_active; uint32_t icache_prefetch_disable; + uint32_t padding; uint64_t InitTLBStart_addr; uint32_t start_app_addr; uint32_t cur_exception_base; @@ -49,6 +51,27 @@ struct linux_app_boot_info { uint32_t compact_flash_common_base_addr; uint32_t compact_flash_attribute_base_addr; uint32_t led_display_base_addr; +#else + uint32_t start_core0_addr; + uint32_t labi_signature; + + uint32_t pci_console_active; + uint32_t avail_coremask; + + uint32_t padding; + uint32_t icache_prefetch_disable; + + uint64_t InitTLBStart_addr; + + uint32_t cur_exception_base; + uint32_t start_app_addr; + + uint32_t compact_flash_common_base_addr; + uint32_t no_mark_private_data; + + uint32_t led_display_base_addr; + uint32_t compact_flash_attribute_base_addr; +#endif }; /* If not to copy a lot of bootloader's structures diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h index 2298199a287e..c373d95b5e2c 100644 --- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h +++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h @@ -53,6 +53,7 @@ * to 0. */ struct cvmx_bootinfo { +#ifdef __BIG_ENDIAN_BITFIELD uint32_t major_version; uint32_t minor_version; @@ -123,6 +124,60 @@ struct cvmx_bootinfo { */ uint64_t fdt_addr; #endif +#else /* __BIG_ENDIAN */ + /* + * Little-Endian: When the CPU mode is switched to + * little-endian, the view of the structure has some of the + * fields swapped. + */ + uint32_t minor_version; + uint32_t major_version; + + uint64_t stack_top; + uint64_t heap_base; + uint64_t heap_end; + uint64_t desc_vaddr; + + uint32_t stack_size; + uint32_t exception_base_addr; + + uint32_t core_mask; + uint32_t flags; + + uint32_t phy_mem_desc_addr; + uint32_t dram_size; + + uint32_t eclock_hz; + uint32_t debugger_flags_base_addr; + + uint32_t reserved0; + uint32_t dclock_hz; + + uint8_t reserved3; + uint8_t reserved2; + uint16_t reserved1; + uint8_t board_rev_minor; + uint8_t board_rev_major; + uint16_t board_type; + + char board_serial_number[CVMX_BOOTINFO_OCTEON_SERIAL_LEN]; + uint8_t mac_addr_base[6]; + uint8_t mac_addr_count; + uint8_t pad[5]; + +#if (CVMX_BOOTINFO_MIN_VER >= 1) + uint64_t compact_flash_common_base_addr; + uint64_t compact_flash_attribute_base_addr; + uint64_t led_display_base_addr; +#endif +#if (CVMX_BOOTINFO_MIN_VER >= 2) + uint32_t config_flags; + uint32_t dfa_ref_clock_hz; +#endif +#if (CVMX_BOOTINFO_MIN_VER >= 3) + uint64_t fdt_addr; +#endif +#endif }; #define CVMX_BOOTINFO_CFG_FLAG_PCI_HOST (1ull << 0) -- 2.20.1