diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/Kconfig | 35 | ||||
| -rw-r--r-- | arch/mips/Makefile | 11 | ||||
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 20 | ||||
| -rw-r--r-- | arch/mips/kernel/head.S | 5 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 6 | ||||
| -rw-r--r-- | arch/mips/pmc-sierra/Kconfig | 46 |
6 files changed, 121 insertions, 2 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 3994f611ec2..2076d472ea9 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -250,6 +250,7 @@ config MIPS_SIM select DMA_NONCOHERENT select SYS_HAS_EARLY_PRINTK select IRQ_CPU + select BOOT_RAW select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_EARLY_PRINTK @@ -333,6 +334,27 @@ config MACH_VR41XX select SYS_HAS_CPU_VR41XX select GENERIC_HARDIRQS_NO__DO_IRQ +config PMC_MSP + bool "PMC-Sierra MSP chipsets" + depends on EXPERIMENTAL + select DMA_NONCOHERENT + select SWAP_IO_SPACE + select NO_EXCEPT_FILL + select BOOT_RAW + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_KGDB + select IRQ_CPU + select SERIAL_8250 + select SERIAL_8250_CONSOLE + help + This adds support for the PMC-Sierra family of Multi-Service + Processor System-On-A-Chips. These parts include a number + of integrated peripherals, interfaces and DSPs in addition to + a variety of MIPS cores. + config PMC_YOSEMITE bool "PMC-Sierra Yosemite eval board" select DMA_COHERENT @@ -706,6 +728,9 @@ config ARC config ARCH_MAY_HAVE_PC_FDC bool +config BOOT_RAW + bool + config DMA_COHERENT bool @@ -812,6 +837,12 @@ config IRQ_CPU_RM7K config IRQ_CPU_RM9K bool +config IRQ_MSP_SLP + bool + +config IRQ_MSP_CIC + bool + config IRQ_MV64340 bool @@ -825,6 +856,9 @@ config MIPS_BOARDS_GEN config PCI_GT64XXX_PCI0 bool +config NO_EXCEPT_FILL + bool + config MIPS_TX3927 bool select HAS_TXX9_SERIAL @@ -886,6 +920,7 @@ config MIPS_L1_CACHE_SHIFT int default "4" if MACH_DECSTATION || SNI_RM default "7" if SGI_IP27 + default "4" if PMC_MSP4200_EVAL default "5" config HAVE_STD_PC_SERIAL_PORT diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 6642ee5fdc4..2b9af2fd550 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -343,6 +343,14 @@ cflags-$(CONFIG_MOMENCO_OCELOT) += -Iinclude/asm-mips/mach-ocelot load-$(CONFIG_MOMENCO_OCELOT) += 0xffffffff80100000 # +# PMC-Sierra MSP SOCs +# +core-$(CONFIG_PMC_MSP) += arch/mips/pmc-sierra/msp71xx/ +cflags-$(CONFIG_PMC_MSP) += -Iinclude/asm-mips/pmc-sierra/msp71xx \ + -mno-branch-likely +load-$(CONFIG_PMC_MSP) += 0xffffffff80100000 + +# # PMC-Sierra Yosemite # core-$(CONFIG_PMC_YOSEMITE) += arch/mips/pmc-sierra/yosemite/ @@ -595,7 +603,8 @@ JIFFIES = jiffies_64 endif AFLAGS += $(cflags-y) -CFLAGS += $(cflags-y) +CFLAGS += $(cflags-y) \ + -D"VMLINUX_LOAD_ADDRESS=$(load-y)" LDFLAGS += -m $(ld-emul) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 23d8a3b7dd7..c6b8b074a81 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -186,9 +186,29 @@ static inline void check_wait(void) } } +static inline void check_errata(void) +{ + struct cpuinfo_mips *c = ¤t_cpu_data; + + switch (c->cputype) { + case CPU_34K: + /* + * Erratum "RPS May Cause Incorrect Instruction Execution" + * This code only handles VPE0, any SMP/SMTC/RTOS code + * making use of VPE1 will be responsable for that VPE. + */ + if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_34K_V1_0_2) + write_c0_config7(read_c0_config7() | MIPS_CONF7_RPS); + break; + default: + break; + } +} + void __init check_bugs32(void) { check_wait(); + check_errata(); } /* diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 1f096aa35bc..f78538eceef 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/threads.h> +#include <asm/addrspace.h> #include <asm/asm.h> #include <asm/asmmacro.h> #include <asm/irqflags.h> @@ -129,16 +130,18 @@ #endif .endm +#ifndef CONFIG_NO_EXCEPT_FILL /* * Reserved space for exception handlers. * Necessary for machines which link their kernels at KSEG0. */ .fill 0x400 +#endif EXPORT(stext) # used for profiling EXPORT(_stext) -#ifndef CONFIG_MIPS_SIM +#ifdef CONFIG_BOOT_RAW /* * Give us a fighting chance of running if execution beings at the * kernel load address. This is needed because this platform does diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 9b19a84d11e..80ea4fa95bd 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -69,6 +69,7 @@ extern asmlinkage void handle_reserved(void); extern int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, int has_fpu); +void (*board_watchpoint_handler)(struct pt_regs *regs); void (*board_be_init)(void); int (*board_be_handler)(struct pt_regs *regs, int is_fixup); void (*board_nmi_handler_setup)(void); @@ -833,6 +834,11 @@ asmlinkage void do_mdmx(struct pt_regs *regs) asmlinkage void do_watch(struct pt_regs *regs) { + if (board_watchpoint_handler) { + (*board_watchpoint_handler)(regs); + return; + } + /* * We use the watch exception where available to detect stack * overflows. diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig index 24d514c9dff..abbd0bbfabd 100644 --- a/arch/mips/pmc-sierra/Kconfig +++ b/arch/mips/pmc-sierra/Kconfig @@ -1,3 +1,49 @@ +choice + prompt "PMC-Sierra MSP SOC type" + depends on PMC_MSP + +config PMC_MSP4200_EVAL + bool "PMC-Sierra MSP4200 Eval Board" + select IRQ_MSP_SLP + select HW_HAS_PCI + +config PMC_MSP4200_GW + bool "PMC-Sierra MSP4200 VoIP Gateway" + select IRQ_MSP_SLP + select HW_HAS_PCI + +config PMC_MSP7120_EVAL + bool "PMC-Sierra MSP7120 Eval Board" + select SYS_SUPPORTS_MULTITHREADING + select IRQ_MSP_CIC + select HW_HAS_PCI + +config PMC_MSP7120_GW + bool "PMC-Sierra MSP7120 Residential Gateway" + select SYS_SUPPORTS_MULTITHREADING + select IRQ_MSP_CIC + select HW_HAS_PCI + +config PMC_MSP7120_FPGA + bool "PMC-Sierra MSP7120 FPGA" + select SYS_SUPPORTS_MULTITHREADING + select IRQ_MSP_CIC + select HW_HAS_PCI + +endchoice + +menu "Options for PMC-Sierra MSP chipsets" + depends on PMC_MSP + +config PMC_MSP_EMBEDDED_ROOTFS + bool "Root filesystem embedded in kernel image" + select MTD + select MTD_BLOCK + select MTD_PMC_MSP_RAMROOT + select MTD_RAM + +endmenu + config HYPERTRANSPORT bool "Hypertransport Support for PMC-Sierra Yosemite" depends on PMC_YOSEMITE |