diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/common/block/cse/Kconfig | 9 | ||||
| -rw-r--r-- | src/soc/intel/common/block/cse/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/intel/common/block/cse/cse_lite_cmos.c | 52 | ||||
| -rw-r--r-- | src/soc/intel/common/block/cse/cse_lite_cmos.h | 14 |
4 files changed, 77 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/cse/Kconfig b/src/soc/intel/common/block/cse/Kconfig index b6e2ecb6d4..1acad624b6 100644 --- a/src/soc/intel/common/block/cse/Kconfig +++ b/src/soc/intel/common/block/cse/Kconfig @@ -62,6 +62,15 @@ config SOC_INTEL_STORE_CSE_FW_VERSION ensure this feature is platform specific and only enabled for the platform that would like to store the CSE version into the CBMEM. +config SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET + int + default 68 + depends on SOC_INTEL_CSE_LITE_SKU + help + This configuration option stores the starting offset of cse fw partition versions in + CMOS memory. The offset should be byte aligned and must leave enough memory to store + required firmware partition versions. + config SOC_INTEL_STORE_ISH_FW_VERSION bool default n diff --git a/src/soc/intel/common/block/cse/Makefile.inc b/src/soc/intel/common/block/cse/Makefile.inc index ad15dc4f94..6798c684e5 100644 --- a/src/soc/intel/common/block/cse/Makefile.inc +++ b/src/soc/intel/common/block/cse/Makefile.inc @@ -3,6 +3,8 @@ romstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_CSE) += cse.c ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_CSE) += cse.c romstage-$(CONFIG_SOC_INTEL_CSE_LITE_SKU) += cse_lite.c ramstage-$(CONFIG_SOC_INTEL_CSE_LITE_SKU) += cse_lite.c +ramstage-$(CONFIG_SOC_INTEL_CSE_LITE_SKU) += cse_lite_cmos.c +romstage-$(CONFIG_SOC_INTEL_CSE_LITE_SKU) += cse_lite_cmos.c ramstage-$(CONFIG_SOC_INTEL_CSE_HAVE_SPEC_SUPPORT) += cse_spec.c ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_CSE) += disable_heci.c smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_CSE) += disable_heci.c diff --git a/src/soc/intel/common/block/cse/cse_lite_cmos.c b/src/soc/intel/common/block/cse/cse_lite_cmos.c new file mode 100644 index 0000000000..5fc3fb0e42 --- /dev/null +++ b/src/soc/intel/common/block/cse/cse_lite_cmos.c @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <ip_checksum.h> +#include <pc80/mc146818rtc.h> + +#include "cse_lite_cmos.h" + +/* + * We need a region in CMOS to store the firmware versions. + * + * This can either be declared as part of the option + * table or statically defined in the board config. + */ +#if CONFIG(USE_OPTION_TABLE) +# include "option_table.h" + +#ifndef CMOS_VSTART_partition_fw +#error "The `ramtop` CMOS entry is missing, please add it to your cmos.layout." +#endif + +#if CMOS_VSTART_partition_fw % 8 != 0 +#error "The `partition firmware` CMOS entry needs to be byte aligned, check your cmos.layout." +#endif // CMOS_VSTART_partition_fw % 8 != 0 + +#if CMOS_VLEN_partition_fw != (32 * 8) +#error "The partition firmware entry needs to be 32 bytes long, check your cmos.layout." +#endif + +# define PARTITION_FW_CMOS_OFFSET (CMOS_VSTART_partition_fw >> 3) + +#else +# if (CONFIG_SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET != 0) +# define PARTITION_FW_CMOS_OFFSET CONFIG_SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET +# else +# error "Must configure CONFIG_SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET" +# endif +#endif + +/* Helper function to read CSE fpt information from cmos memory. */ +void cmos_read_fw_partition_info(struct cse_specific_info *info) +{ + for (uint8_t *p = (uint8_t *)info, i = 0; i < sizeof(*info); i++, p++) + *p = cmos_read(PARTITION_FW_CMOS_OFFSET + i); +} + +/* Helper function to write CSE fpt information to cmos memory. */ +void cmos_write_fw_partition_info(const struct cse_specific_info *info) +{ + for (uint8_t *p = (uint8_t *)info, i = 0; i < sizeof(*info); i++, p++) + cmos_write(*p, PARTITION_FW_CMOS_OFFSET + i); +} diff --git a/src/soc/intel/common/block/cse/cse_lite_cmos.h b/src/soc/intel/common/block/cse/cse_lite_cmos.h new file mode 100644 index 0000000000..a6dd6ce7f2 --- /dev/null +++ b/src/soc/intel/common/block/cse/cse_lite_cmos.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef SOC_INTEL_COMMON_BLOCK_CSE_LITE_CMOS_H +#define SOC_INTEL_COMMON_BLOCK_CSE_LITE_CMOS_H + +#include <intelblocks/cse.h> + +/* Helper function to read CSE fpt information from cmos memory. */ +void cmos_read_fw_partition_info(struct cse_specific_info *info); + +/* Helper function to write CSE fpt information to cmos memory. */ +void cmos_write_fw_partition_info(const struct cse_specific_info *info); + +#endif /* SOC_INTEL_COMMON_BLOCK_CSE_LITE_CMOS_H */ |