aboutsummaryrefslogtreecommitdiff
path: root/src/mainboard/facebook/fbg1701/w25q64.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mainboard/facebook/fbg1701/w25q64.c')
-rw-r--r--src/mainboard/facebook/fbg1701/w25q64.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/mainboard/facebook/fbg1701/w25q64.c b/src/mainboard/facebook/fbg1701/w25q64.c
new file mode 100644
index 0000000000..bc908f04b3
--- /dev/null
+++ b/src/mainboard/facebook/fbg1701/w25q64.c
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corp.
+ * Copyright (C) 2018 Eltan B.V.
+ *
+ * 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.
+ */
+
+#include <soc/spi.h>
+#include <string.h>
+#include <drivers/spi/spi_winbond.h>
+
+/*
+ * SPI lockdown configuration
+ */
+#define SPI_OPMENU_0 CMD_W25_WRSR /* Write Status Register */
+#define SPI_OPTYPE_0 SPI_OPTYPE_WR_NOADDR /* Write, no address */
+
+#define SPI_OPMENU_1 CMD_W25_PP /* BYPR: Byte Program */
+#define SPI_OPTYPE_1 SPI_OPTYPE_WR_ADDR /* Write, address required */
+
+#define SPI_OPMENU_2 CMD_W25_READ /* Read Data */
+#define SPI_OPTYPE_2 SPI_OPTYPE_RD_ADDR /* Read, address required */
+
+#define SPI_OPMENU_3 CMD_W25_RDSR /* Read Status Register */
+#define SPI_OPTYPE_3 SPI_OPTYPE_RD_NOADDR /* Read, no address */
+
+#define SPI_OPMENU_4 CMD_W25_SE /* Sector Erase */
+#define SPI_OPTYPE_4 SPI_OPTYPE_WR_ADDR /* Write, address required */
+
+#define SPI_OPMENU_5 CMD_W25_RDID /* Read ID */
+#define SPI_OPTYPE_5 SPI_OPTYPE_RD_NOADDR /* Read, no address */
+
+#define SPI_OPMENU_6 CMD_W25_BE /* BE: Block Erase */
+#define SPI_OPTYPE_6 SPI_OPTYPE_WR_ADDR /* Write, address required */
+
+#define SPI_OPMENU_7 CMD_W25_FAST_READ /* FAST: Fast Read */
+#define SPI_OPTYPE_7 SPI_OPTYPE_RD_ADDR /* Read, address required */
+
+#define SPI_OPPREFIX CMD_W25_WREN /* WREN only to be inline */
+ /* with flashrom */
+
+#define SPI_OPTYPE ((SPI_OPTYPE_7 << 14) | (SPI_OPTYPE_6 << 12) | \
+ (SPI_OPTYPE_5 << 10) | (SPI_OPTYPE_4 << 8) | \
+ (SPI_OPTYPE_3 << 6) | (SPI_OPTYPE_2 << 4) | \
+ (SPI_OPTYPE_1 << 2) | (SPI_OPTYPE_0 << 0))
+
+#define SPI_OPMENU_UPPER ((SPI_OPMENU_7 << 24) | (SPI_OPMENU_6 << 16) | \
+ (SPI_OPMENU_5 << 8) | (SPI_OPMENU_4 << 0))
+
+#define SPI_OPMENU_LOWER ((SPI_OPMENU_3 << 24) | (SPI_OPMENU_2 << 16) | \
+ (SPI_OPMENU_1 << 8) | (SPI_OPMENU_0 << 0))
+
+#define SPI_VSCC (WG_64_BYTE | EO(0x20) | BES_4_KB)
+
+static const struct spi_config spi_config = {
+ .preop = CMD_W25_WREN,
+ .optype = SPI_OPTYPE,
+ .opmenu = { SPI_OPMENU_LOWER, SPI_OPMENU_UPPER },
+ .lvscc = SPI_VSCC,
+ .uvscc = SPI_VSCC,
+};
+
+int mainboard_get_spi_config(struct spi_config *cfg)
+{
+ memcpy(cfg, &spi_config, sizeof(*cfg));
+
+ return 0;
+}