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-rw-r--r--src/northbridge/amd/agesa/Makefile.inc3
-rw-r--r--src/northbridge/amd/agesa/oem_s3.c83
2 files changed, 86 insertions, 0 deletions
diff --git a/src/northbridge/amd/agesa/Makefile.inc b/src/northbridge/amd/agesa/Makefile.inc
index 05c3c1a705..284b6e2b04 100644
--- a/src/northbridge/amd/agesa/Makefile.inc
+++ b/src/northbridge/amd/agesa/Makefile.inc
@@ -30,4 +30,7 @@ subdirs-$(CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY16_KB) += family16kb
romstage-y += def_callouts.c agesawrapper.c eventlog.c
ramstage-y += def_callouts.c agesawrapper.c eventlog.c
+romstage-y += oem_s3.c
+ramstage-y += oem_s3.c
+
endif
diff --git a/src/northbridge/amd/agesa/oem_s3.c b/src/northbridge/amd/agesa/oem_s3.c
new file mode 100644
index 0000000000..c196be2abd
--- /dev/null
+++ b/src/northbridge/amd/agesa/oem_s3.c
@@ -0,0 +1,83 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include <spi-generic.h>
+#include <spi_flash.h>
+#include <string.h>
+#include <cpu/amd/agesa/s3_resume.h>
+
+/* The size needs to be 4k aligned, which is the sector size of most flashes. */
+#define S3_DATA_VOLATILE_SIZE 0x6000
+#define S3_DATA_MTRR_SIZE 0x1000
+#define S3_DATA_NONVOLATILE_SIZE 0x1000
+
+#if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) && \
+ (S3_DATA_VOLATILE_SIZE + S3_DATA_MTRR_SIZE + S3_DATA_NONVOLATILE_SIZE) > CONFIG_S3_DATA_SIZE
+#error "Please increase the value of S3_DATA_SIZE"
+#endif
+
+void get_s3nv_data(S3_DATA_TYPE S3DataType, u32 *pos, u32 *len)
+{
+ /* FIXME: Find file from CBFS. */
+ u32 s3_data = CONFIG_S3_DATA_POS;
+
+ switch (S3DataType) {
+ case S3DataTypeVolatile:
+ *pos = s3_data;
+ *len = S3_DATA_VOLATILE_SIZE;
+ break;
+ case S3DataTypeMTRR:
+ *pos = s3_data + S3_DATA_VOLATILE_SIZE;
+ *len = S3_DATA_MTRR_SIZE;
+ break;
+ case S3DataTypeNonVolatile:
+ *pos = s3_data + S3_DATA_VOLATILE_SIZE + S3_DATA_MTRR_SIZE;
+ *len = S3_DATA_NONVOLATILE_SIZE;
+ break;
+ default:
+ *pos = 0;
+ *len = 0;
+ break;
+ }
+}
+
+int spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len)
+{
+#if IS_ENABLED(CONFIG_SPI_FLASH)
+ struct spi_flash *flash;
+
+ spi_init();
+ flash = spi_flash_probe(0, 0);
+ if (!flash)
+ return -1;
+
+ flash->spi->rw = SPI_WRITE_FLAG;
+ spi_claim_bus(flash->spi);
+
+ flash->erase(flash, pos, size);
+ flash->write(flash, pos, sizeof(len), &len);
+ flash->write(flash, pos + sizeof(len), len, buf);
+
+ flash->spi->rw = SPI_WRITE_FLAG;
+ spi_release_bus(flash->spi);
+ return 0;
+#else
+ return -1;
+#endif
+}