diff options
| -rw-r--r-- | src/arch/x86/Kconfig | 7 | ||||
| -rw-r--r-- | src/arch/x86/memlayout.ld | 18 | ||||
| -rw-r--r-- | src/include/rules.h | 2 | ||||
| -rw-r--r-- | src/include/symbols.h | 2 |
4 files changed, 21 insertions, 8 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 2ace7f753d..a7d10fb502 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -81,6 +81,13 @@ config AP_IN_SIPI_WAIT default n depends on ARCH_X86 && SMP +config RESET_VECTOR_IN_RAM + bool + depends on ARCH_X86 + help + Select this option if the x86 soc implements custom code to handle the + reset vector in RAM instead of the traditional 0xfffffff0 location. + # Aligns 16bit entry code in bootblock so that hyper-threading CPUs # can boot AP CPUs to enable their shared caches. config SIPI_VECTOR_IN_ROM diff --git a/src/arch/x86/memlayout.ld b/src/arch/x86/memlayout.ld index cc72552254..1e4ec0df81 100644 --- a/src/arch/x86/memlayout.ld +++ b/src/arch/x86/memlayout.ld @@ -16,6 +16,15 @@ #include <memlayout.h> #include <arch/header.ld> +/* Pull in the either CAR or early DRAM rules. */ +#if ENV_ROMSTAGE_OR_BEFORE +#if ENV_CACHE_AS_RAM +#define EARLY_MEMLAYOUT "car.ld" +#else +#error "Early DRAM environment for x86 is work-in-progress. */ +#endif +#endif + SECTIONS { /* @@ -34,23 +43,20 @@ SECTIONS * Link at 32MiB address and rely on cbfstool to relocate to XIP. */ ROMSTAGE(CONFIG_ROMSTAGE_ADDR, 1M) - /* Pull in the cache-as-ram rules. */ - #include "car.ld" + #include EARLY_MEMLAYOUT #elif ENV_VERSTAGE /* The 1M size is not allocated. It's just for basic size checking. * Link at 32MiB address and rely on cbfstool to relocate to XIP. */ VERSTAGE(CONFIG_VERSTAGE_ADDR, 1M) - /* Pull in the cache-as-ram rules. */ - #include "car.ld" + #include EARLY_MEMLAYOUT #elif ENV_BOOTBLOCK /* This is for C_ENVIRONMENT_BOOTBLOCK. arch/x86/bootblock.ld contains * the logic for the romcc linking. */ BOOTBLOCK(0xffffffff - CONFIG_C_ENV_BOOTBLOCK_SIZE + 1, CONFIG_C_ENV_BOOTBLOCK_SIZE) - /* Pull in the cache-as-ram rules. */ - #include "car.ld" + #include EARLY_MEMLAYOUT #elif ENV_POSTCAR POSTCAR(32M, 1M) diff --git a/src/include/rules.h b/src/include/rules.h index 9fd7dc32da..dc4210a06f 100644 --- a/src/include/rules.h +++ b/src/include/rules.h @@ -271,7 +271,7 @@ #if CONFIG(ARCH_X86) /* Indicates memory layout is determined with arch/x86/car.ld. */ -#define ENV_CACHE_AS_RAM ENV_ROMSTAGE_OR_BEFORE +#define ENV_CACHE_AS_RAM (ENV_ROMSTAGE_OR_BEFORE && !CONFIG(RESET_VECTOR_IN_RAM)) /* No .data sections with execute-in-place from ROM. */ #define ENV_STAGE_HAS_DATA_SECTION !ENV_CACHE_AS_RAM /* No .bss sections for stage with CAR teardown. */ diff --git a/src/include/symbols.h b/src/include/symbols.h index 76c93202d0..56df8d5734 100644 --- a/src/include/symbols.h +++ b/src/include/symbols.h @@ -72,7 +72,7 @@ DECLARE_REGION(bl31) * (Does not necessarily mean that the memory is accessible.) */ static inline int preram_symbols_available(void) { - return !CONFIG(ARCH_X86) || ENV_CACHE_AS_RAM; + return !CONFIG(ARCH_X86) || ENV_ROMSTAGE_OR_BEFORE; } #endif /* __SYMBOLS_H */ |