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MIPS: Disable MIPS16/microMIPS crap for platforms not supporting these ASEs. 

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2014-04-29 01:49:24 +02:00
parent e0cc3a42eb
commit 377cb1b6c1
3 changed files with 26 additions and 1 deletions
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17
arch/mips/Kconfig
View File

@ -83,6 +83,7 @@ config AR7
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_ZBOOT_UART16550
select ARCH_REQUIRE_GPIOLIB
select VLYNQ
@ -106,6 +107,7 @@ config ATH79
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
help
Support for the Atheros AR71XX/AR724X/AR913X SoCs.
@ -122,6 +124,7 @@ config BCM47XX
select NO_EXCEPT_FILL
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS16
select SYS_HAS_EARLY_PRINTK
select USE_GENERIC_EARLY_PRINTK_8250
help
@ -248,6 +251,7 @@ config LANTIQ
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_MULTITHREADING
select SYS_HAS_EARLY_PRINTK
select ARCH_REQUIRE_GPIOLIB
@ -330,6 +334,7 @@ config MIPS_MALTA
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS_CMP
select SYS_SUPPORTS_MIPS_CPS
select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_MULTITHREADING
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_ZBOOT
@ -361,6 +366,7 @@ config MIPS_SEAD3
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_MICROMIPS
select SYS_SUPPORTS_MIPS16
select USB_EHCI_BIG_ENDIAN_DESC
select USB_EHCI_BIG_ENDIAN_MMIO
select USE_OF
@ -380,6 +386,7 @@ config MACH_VR41XX
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_VR41XX
select SYS_SUPPORTS_MIPS16
select ARCH_REQUIRE_GPIOLIB
config NXP_STB220
@ -407,6 +414,7 @@ config PMC_MSP
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
select IRQ_CPU
select SERIAL_8250
select SERIAL_8250_CONSOLE
@ -430,6 +438,7 @@ config RALINK
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MIPS16
select SYS_HAS_EARLY_PRINTK
select HAVE_MACH_CLKDEV
select CLKDEV_LOOKUP
@ -1059,6 +1068,7 @@ config SOC_PNX833X
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
select CPU_MIPSR2_IRQ_VI
config SOC_PNX8335
@ -2199,6 +2209,13 @@ config SYS_SUPPORTS_SMARTMIPS
config SYS_SUPPORTS_MICROMIPS
bool
config SYS_SUPPORTS_MIPS16
bool
help
This option must be set if a kernel might be executed on a MIPS16-
enabled CPU even if MIPS16 is not actually being used. In other
words, it makes the kernel MIPS16-tolerant.
config CPU_SUPPORTS_MSA
bool

9
arch/mips/include/asm/mipsregs.h
View File

@ -709,11 +709,18 @@
#ifndef __ASSEMBLY__
/*
* Macros for handling the ISA mode bit for microMIPS.
* Macros for handling the ISA mode bit for MIPS16 and microMIPS.
*/
#if defined(CONFIG_SYS_SUPPORTS_MIPS16) || \
defined(CONFIG_SYS_SUPPORTS_MICROMIPS)
#define get_isa16_mode(x) ((x) & 0x1)
#define msk_isa16_mode(x) ((x) & ~0x1)
#define set_isa16_mode(x) do { (x) |= 0x1; } while(0)
#else
#define get_isa16_mode(x) 0
#define msk_isa16_mode(x) (x)
#define set_isa16_mode(x) do { } while(0)
#endif
/*
* microMIPS instructions can be 16-bit or 32-bit in length. This

1
arch/mips/loongson1/Kconfig
View File

@ -14,6 +14,7 @@ config LOONGSON1_LS1B
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_MIPS16
select SYS_HAS_EARLY_PRINTK
select COMMON_CLK