Index: linux-2.6.23.17/arch/mips/Kconfig =================================================================== --- linux-2.6.23.17.orig/arch/mips/Kconfig +++ linux-2.6.23.17/arch/mips/Kconfig @@ -15,6 +15,22 @@ choice prompt "System type" default SGI_IP22 +config AR7 + bool "Texas Instruments AR7" + select BOOT_ELF32 + select DMA_NONCOHERENT + select IRQ_CPU + select NO_EXCEPT_FILL + select SWAP_IO_SPACE + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_EARLY_PRINTK + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_KGDB + select SYS_SUPPORTS_LITTLE_ENDIAN + select SYS_SUPPORTS_BIG_ENDIAN + select GENERIC_GPIO + select GENERIC_HARDIRQS_NO__DO_IRQ + config MACH_ALCHEMY bool "Alchemy processor based machines" Index: linux-2.6.23.17/arch/mips/kernel/traps.c =================================================================== --- linux-2.6.23.17.orig/arch/mips/kernel/traps.c +++ linux-2.6.23.17/arch/mips/kernel/traps.c @@ -1075,10 +1075,23 @@ void *set_except_vector(int n, void *add exception_handlers[n] = handler; if (n == 0 && cpu_has_divec) { - *(volatile u32 *)(ebase + 0x200) = 0x08000000 | - (0x03ffffff & (handler >> 2)); - flush_icache_range(ebase + 0x200, ebase + 0x204); - } + if ((handler ^ (ebase + 4)) & 0xfc000000) { + /* lui k0, 0x0000 */ + *(u32 *)(ebase + 0x200) = 0x3c1a0000 | (handler >> 16); + /* ori k0, 0x0000 */ + *(u32 *)(ebase + 0x204) = + 0x375a0000 | (handler & 0xffff); + /* jr k0 */ + *(u32 *)(ebase + 0x208) = 0x03400008; + /* nop */ + *(u32 *)(ebase + 0x20C) = 0x00000000; + flush_icache_range(ebase + 0x200, ebase + 0x210); + } else { + *(volatile u32 *)(ebase + 0x200) = + 0x08000000 | (0x03ffffff & (handler >> 2)); + flush_icache_range(ebase + 0x200, ebase + 0x204); + } + } return (void *)old_handler; } Index: linux-2.6.23.17/arch/mips/Makefile =================================================================== --- linux-2.6.23.17.orig/arch/mips/Makefile +++ linux-2.6.23.17/arch/mips/Makefile @@ -161,6 +161,13 @@ libs-$(CONFIG_SIBYTE_CFE) += arch/mips/s # # +# Texas Instruments AR7 +# +core-$(CONFIG_AR7) += arch/mips/ar7/ +cflags-$(CONFIG_AR7) += -Iinclude/asm-mips/ar7 +load-$(CONFIG_AR7) += 0xffffffff94100000 + +# # Acer PICA 61, Mips Magnum 4000 and Olivetti M700. # core-$(CONFIG_MACH_JAZZ) += arch/mips/jazz/ Index: linux-2.6.23.17/include/asm-mips/page.h =================================================================== --- linux-2.6.23.17.orig/include/asm-mips/page.h +++ linux-2.6.23.17/include/asm-mips/page.h @@ -184,8 +184,10 @@ typedef struct { unsigned long pgprot; } #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) -#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET) +#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE + \ + PHYS_OFFSET) +#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET - \ + PHYS_OFFSET) #include #include