ram: renesas: dbsc5: Make struct renesas_dbsc5_board_config public
Make struct renesas_dbsc5_board_config {} definition public via
include/dbsc5.h, so this structure can be defined in board files
and passed into the DBSC5 DRAM driver by overriding weak function
dbsc5_get_board_data() on board level.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/include/dbsc5.h b/include/dbsc5.h
new file mode 100644
index 0000000..cec937d
--- /dev/null
+++ b/include/dbsc5.h
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2024-2025 Renesas Electronics Corp.
+ */
+
+#ifndef __INCLUDE_DBSC5_H__
+#define __INCLUDE_DBSC5_H__
+
+/* The number of channels V4H has */
+#define DRAM_CH_CNT 4
+/* The number of slices V4H has */
+#define SLICE_CNT 2
+/* The number of chip select V4H has */
+#define CS_CNT 2
+
+struct renesas_dbsc5_board_config {
+ /* Channels in use */
+ u8 bdcfg_phyvalid;
+ /* Read vref (SoC) training range */
+ u32 bdcfg_vref_r;
+ /* Write vref (MR14, MR15) training range */
+ u16 bdcfg_vref_w;
+ /* CA vref (MR12) training range */
+ u16 bdcfg_vref_ca;
+ /* RFM required check */
+ bool bdcfg_rfm_chk;
+
+ /* Board parameter about channels */
+ struct {
+ /*
+ * 0x00: 4Gb dual channel die / 2Gb single channel die
+ * 0x01: 6Gb dual channel die / 3Gb single channel die
+ * 0x02: 8Gb dual channel die / 4Gb single channel die
+ * 0x03: 12Gb dual channel die / 6Gb single channel die
+ * 0x04: 16Gb dual channel die / 8Gb single channel die
+ * 0x05: 24Gb dual channel die / 12Gb single channel die
+ * 0x06: 32Gb dual channel die / 16Gb single channel die
+ * 0x07: 24Gb single channel die
+ * 0x08: 32Gb single channel die
+ * 0xFF: NO_MEMORY
+ */
+ u8 bdcfg_ddr_density[CS_CNT];
+ /* SoC caX([6][5][4][3][2][1][0]) -> MEM caY: */
+ u32 bdcfg_ca_swap;
+ /* SoC dqsX([1][0]) -> MEM dqsY: */
+ u8 bdcfg_dqs_swap;
+ /* SoC dq([7][6][5][4][3][2][1][0]) -> MEM dqY/dm: (8 means DM) */
+ u32 bdcfg_dq_swap[SLICE_CNT];
+ /* SoC dm -> MEM dqY/dm: (8 means DM) */
+ u8 bdcfg_dm_swap[SLICE_CNT];
+ /* SoC ckeX([1][0]) -> MEM csY */
+ u8 bdcfg_cs_swap;
+ } ch[4];
+};
+
+#endif /* __INCLUDE_DBSC5_H__ */