diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5fad794481..64c824f717 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -266,6 +266,67 @@ config ENABLE_MRC_CACHE to be used for speeding up boot time on future reboots and/or power cycles. +config HAVE_MRC + bool "Add a System Agent binary" + depends on !HAVE_FSP + help + Select this option to add a System Agent binary to + the resulting U-Boot image. MRC stands for Memory Reference Code. + It is a binary blob which U-Boot uses to set up SDRAM. + + Note: Without this binary U-Boot will not be able to set up its + SDRAM so will not boot. + +config CACHE_MRC_BIN + bool + depends on HAVE_MRC + default n + help + Enable caching for the memory reference code binary. This uses an + MTRR (memory type range register) to turn on caching for the section + of SPI flash that contains the memory reference code. This makes + SDRAM init run faster. + +config CACHE_MRC_SIZE_KB + int + depends on HAVE_MRC + default 512 + help + Sets the size of the cached area for the memory reference code. + This ends at the end of SPI flash (address 0xffffffff) and is + measured in KB. Typically this is set to 512, providing for 0.5MB + of cached space. + +config DCACHE_RAM_BASE + hex + depends on HAVE_MRC + help + Sets the base of the data cache area in memory space. This is the + start address of the cache-as-RAM (CAR) area and the address varies + depending on the CPU. Once CAR is set up, read/write memory becomes + available at this address and can be used temporarily until SDRAM + is working. + +config DCACHE_RAM_SIZE + hex + depends on HAVE_MRC + default 0x40000 + help + Sets the total size of the data cache area in memory space. This + sets the size of the cache-as-RAM (CAR) area. Note that much of the + CAR space is required by the MRC. The CAR space available to U-Boot + is normally at the start and typically extends to 1/4 or 1/2 of the + available size. + +config DCACHE_RAM_MRC_VAR_SIZE + hex + depends on HAVE_MRC + help + This is the amount of CAR (Cache as RAM) reserved for use by the + memory reference code. This depends on the implementation of the + memory reference code and must be set correctly or the board will + not boot. + config SMP bool "Enable Symmetric Multiprocessing" default n |