arm: mvebu: Add Armada 38x DDR3 training code from Marvell bin_hdr

This patch adds the DDR3 setup and training code taken from the Marvell
U-Boot repository. This code used to be included as a binary (bin_hdr)
into the Armada A38x boot image. Not linked with the main U-Boot. With this
code addition and the serdes/PHY setup code, the Armada A38x support
in mainline U-Boot is finally self-contained. So the complete image
for booting can be built from mainline U-Boot. Without any additional
external inclusion.

Note:
This code has undergone many hours (days!) of coding-style cleanup and
refactoring. It still is not checkpatch clean though, I'm afraid. As the
factoring of the code has so many levels of indentation that many lines
are longer than 80 chars.

Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 54 insertions, 0 deletions

diff --git a/drivers/ddr/marvell/a38x/ddr3_training_ip_bist.h b/drivers/ddr/marvell/a38x/ddr3_training_ip_bist.h
new file mode 100644
index 0000000000..5c9bfe98a0
--- /dev/null
+++ b/drivers/ddr/marvell/a38x/ddr3_training_ip_bist.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) Marvell International Ltd. and its affiliates
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _DDR3_TRAINING_IP_BIST_H_
+#define _DDR3_TRAINING_IP_BIST_H_
+
+#include "ddr3_training_ip.h"
+
+enum hws_bist_operation {
+	BIST_STOP = 0,
+	BIST_START = 1
+};
+
+enum  hws_stress_jump {
+	STRESS_NONE = 0,
+	STRESS_ENABLE = 1
+};
+
+enum hws_pattern_duration {
+	DURATION_SINGLE = 0,
+	DURATION_STOP_AT_FAIL = 1,
+	DURATION_ADDRESS = 2,
+	DURATION_CONT = 4
+};
+
+struct bist_result {
+	u32 bist_error_cnt;
+	u32 bist_fail_low;
+	u32 bist_fail_high;
+	u32 bist_last_fail_addr;
+};
+
+int ddr3_tip_bist_read_result(u32 dev_num, u32 if_id,
+			      struct bist_result *pst_bist_result);
+int ddr3_tip_bist_activate(u32 dev_num, enum hws_pattern pattern,
+			   enum hws_access_type access_type,
+			   u32 if_num, enum hws_dir direction,
+			   enum hws_stress_jump addr_stress_jump,
+			   enum hws_pattern_duration duration,
+			   enum hws_bist_operation oper_type,
+			   u32 offset, u32 cs_num, u32 pattern_addr_length);
+int hws_ddr3_run_bist(u32 dev_num, enum hws_pattern pattern, u32 *result,
+		      u32 cs_num);
+int ddr3_tip_run_sweep_test(int dev_num, u32 repeat_num, u32 direction,
+			    u32 mode);
+int ddr3_tip_print_regs(u32 dev_num);
+int ddr3_tip_reg_dump(u32 dev_num);
+int run_xsb_test(u32 dev_num, u32 mem_addr, u32 write_type, u32 read_type,
+		 u32 burst_length);
+
+#endif /* _DDR3_TRAINING_IP_BIST_H_ */