implement mainboard_get_spi_config wip

Signed-off-by: Filip Lewiński <[email protected]>

src/mainboard/intel/minnowmax/Makefile.mk

@@ -2,6 +2,7 @@
 
 ramstage-y += gpio.c
 ramstage-y += irqroute.c
+ramstage-y += w25q64.c
 
 #SPD_SOURCES  = micron_1GiB_1066MHz_dimm_MT41K256M16HA-125 # 0b0000
 #SPD_SOURCES += micron_2GiB_1066MHz_dimm_MT41K256M16HA-125 # 0b0001

src/mainboard/intel/minnowmax/w25q64.c

@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <string.h>
+#include <soc/spi.h>
+
+/*
+ * SPI lockdown configuration W25Q64FW.
+ */
+#define SPI_OPMENU_0 0x01 /* WRSR: Write Status Register */
+#define SPI_OPTYPE_0 0x01 /* Write, no address */
+
+#define SPI_OPMENU_1 0x02 /* BYPR: Byte Program */
+#define SPI_OPTYPE_1 0x03 /* Write, address required */
+
+#define SPI_OPMENU_2 0x03 /* READ: Read Data */
+#define SPI_OPTYPE_2 0x02 /* Read, address required */
+
+#define SPI_OPMENU_3 0x05 /* RDSR: Read Status Register */
+#define SPI_OPTYPE_3 0x00 /* Read, no address */
+
+#define SPI_OPMENU_4 0x20 /* SE20: Sector Erase 0x20 */
+#define SPI_OPTYPE_4 0x03 /* Write, address required */
+
+#define SPI_OPMENU_5 0x9f /* RDID: Read ID */
+#define SPI_OPTYPE_5 0x00 /* Read, no address */
+
+#define SPI_OPMENU_6 0xd8 /* BED8: Block Erase 0xd8 */
+#define SPI_OPTYPE_6 0x03 /* Write, address required */
+
+#define SPI_OPMENU_7 0x0b /* FAST: Fast Read */
+#define SPI_OPTYPE_7 0x02 /* Read, address required */
+
+#define SPI_OPPREFIX ((0x50 << 8) | 0x06) /* EWSR and WREN */
+#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 = SPI_OPPREFIX,
+	.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;
+}