1menu "CPU errata selection" 2 3config ERRATA_ANDES 4 bool "Andes AX45MP errata" 5 depends on RISCV_ALTERNATIVE && RISCV_SBI 6 help 7 All Andes errata Kconfig depend on this Kconfig. Disabling 8 this Kconfig will disable all Andes errata. Please say "Y" 9 here if your platform uses Andes CPU cores. 10 11 Otherwise, please say "N" here to avoid unnecessary overhead. 12 13config ERRATA_ANDES_CMO 14 bool "Apply Andes cache management errata" 15 depends on ERRATA_ANDES && ARCH_R9A07G043 16 select RISCV_DMA_NONCOHERENT 17 default y 18 help 19 This will apply the cache management errata to handle the 20 non-standard handling on non-coherent operations on Andes cores. 21 22 If you don't know what to do here, say "Y". 23 24config ERRATA_SIFIVE 25 bool "SiFive errata" 26 depends on RISCV_ALTERNATIVE 27 help 28 All SiFive errata Kconfig depend on this Kconfig. Disabling 29 this Kconfig will disable all SiFive errata. Please say "Y" 30 here if your platform uses SiFive CPU cores. 31 32 Otherwise, please say "N" here to avoid unnecessary overhead. 33 34config ERRATA_SIFIVE_CIP_453 35 bool "Apply SiFive errata CIP-453" 36 depends on ERRATA_SIFIVE && 64BIT 37 default y 38 help 39 This will apply the SiFive CIP-453 errata to add sign extension 40 to the $badaddr when exception type is instruction page fault 41 and instruction access fault. 42 43 If you don't know what to do here, say "Y". 44 45config ERRATA_SIFIVE_CIP_1200 46 bool "Apply SiFive errata CIP-1200" 47 depends on ERRATA_SIFIVE && 64BIT 48 default y 49 help 50 This will apply the SiFive CIP-1200 errata to repalce all 51 "sfence.vma addr" with "sfence.vma" to ensure that the addr 52 has been flushed from TLB. 53 54 If you don't know what to do here, say "Y". 55 56config ERRATA_THEAD 57 bool "T-HEAD errata" 58 depends on RISCV_ALTERNATIVE 59 help 60 All T-HEAD errata Kconfig depend on this Kconfig. Disabling 61 this Kconfig will disable all T-HEAD errata. Please say "Y" 62 here if your platform uses T-HEAD CPU cores. 63 64 Otherwise, please say "N" here to avoid unnecessary overhead. 65 66config ERRATA_THEAD_PBMT 67 bool "Apply T-Head memory type errata" 68 depends on ERRATA_THEAD && 64BIT && MMU 69 select RISCV_ALTERNATIVE_EARLY 70 default y 71 help 72 This will apply the memory type errata to handle the non-standard 73 memory type bits in page-table-entries on T-Head SoCs. 74 75 If you don't know what to do here, say "Y". 76 77config ERRATA_THEAD_CMO 78 bool "Apply T-Head cache management errata" 79 depends on ERRATA_THEAD && MMU 80 select DMA_DIRECT_REMAP 81 select RISCV_DMA_NONCOHERENT 82 default y 83 help 84 This will apply the cache management errata to handle the 85 non-standard handling on non-coherent operations on T-Head SoCs. 86 87 If you don't know what to do here, say "Y". 88 89config ERRATA_THEAD_PMU 90 bool "Apply T-Head PMU errata" 91 depends on ERRATA_THEAD && RISCV_PMU_SBI 92 default y 93 help 94 The T-Head C9xx cores implement a PMU overflow extension very 95 similar to the core SSCOFPMF extension. 96 97 This will apply the overflow errata to handle the non-standard 98 behaviour via the regular SBI PMU driver and interface. 99 100 If you don't know what to do here, say "Y". 101 102endmenu # "CPU errata selection" 103