diff options
Diffstat (limited to 'arch/xtensa/include/asm')
| -rw-r--r-- | arch/xtensa/include/asm/initialize_mmu.h | 9 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/io.h | 10 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/vectors.h | 8 |
3 files changed, 22 insertions, 5 deletions
diff --git a/arch/xtensa/include/asm/initialize_mmu.h b/arch/xtensa/include/asm/initialize_mmu.h index a2078a2e5476..600781edc8a3 100644 --- a/arch/xtensa/include/asm/initialize_mmu.h +++ b/arch/xtensa/include/asm/initialize_mmu.h @@ -26,6 +26,9 @@ #include <asm/pgtable.h> #include <asm/vectors.h> +#define CA_BYPASS (_PAGE_CA_BYPASS | _PAGE_HW_WRITE | _PAGE_HW_EXEC) +#define CA_WRITEBACK (_PAGE_CA_WB | _PAGE_HW_WRITE | _PAGE_HW_EXEC) + #ifdef __ASSEMBLY__ #define XTENSA_HWVERSION_RC_2009_0 230000 @@ -80,8 +83,6 @@ /* Step 2: map 0x40000000..0x47FFFFFF to paddr containing this code * and jump to the new mapping. */ -#define CA_BYPASS (_PAGE_CA_BYPASS | _PAGE_HW_WRITE | _PAGE_HW_EXEC) -#define CA_WRITEBACK (_PAGE_CA_WB | _PAGE_HW_WRITE | _PAGE_HW_EXEC) srli a3, a0, 27 slli a3, a3, 27 @@ -124,12 +125,12 @@ witlb a4, a5 movi a5, XCHAL_KIO_CACHED_VADDR + 6 - movi a4, XCHAL_KIO_PADDR + CA_WRITEBACK + movi a4, XCHAL_KIO_DEFAULT_PADDR + CA_WRITEBACK wdtlb a4, a5 witlb a4, a5 movi a5, XCHAL_KIO_BYPASS_VADDR + 6 - movi a4, XCHAL_KIO_PADDR + CA_BYPASS + movi a4, XCHAL_KIO_DEFAULT_PADDR + CA_BYPASS wdtlb a4, a5 witlb a4, a5 diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index 1482a3636381..2a042d430c25 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -24,6 +24,16 @@ #define IO_SPACE_LIMIT ~0 #ifdef CONFIG_MMU + +#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && CONFIG_OF +extern unsigned long xtensa_kio_paddr; + +static inline unsigned long xtensa_get_kio_paddr(void) +{ + return xtensa_kio_paddr; +} +#endif + /* * Return the virtual address for the specified bus memory. * Note that we currently don't support any address outside the KIO segment. diff --git a/arch/xtensa/include/asm/vectors.h b/arch/xtensa/include/asm/vectors.h index 221a60d804d5..5791b45d5a5d 100644 --- a/arch/xtensa/include/asm/vectors.h +++ b/arch/xtensa/include/asm/vectors.h @@ -22,9 +22,15 @@ #define XCHAL_KIO_CACHED_VADDR 0xe0000000 #define XCHAL_KIO_BYPASS_VADDR 0xf0000000 -#define XCHAL_KIO_PADDR 0xf0000000 +#define XCHAL_KIO_DEFAULT_PADDR 0xf0000000 #define XCHAL_KIO_SIZE 0x10000000 +#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && CONFIG_OF +#define XCHAL_KIO_PADDR xtensa_get_kio_paddr() +#else +#define XCHAL_KIO_PADDR XCHAL_KIO_DEFAULT_PADDR +#endif + #if defined(CONFIG_MMU) /* Will Become VECBASE */ |