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path: root/drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c
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Diffstat (limited to 'drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c')
-rw-r--r--drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c b/drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c
new file mode 100644
index 0000000000..560da7ee80
--- /dev/null
+++ b/drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) Marvell International Ltd. and its affiliates
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+
+#include "ddr3_init.h"
+
+#define REG_READ_DATA_SAMPLE_DELAYS_ADDR 0x1538
+#define REG_READ_DATA_SAMPLE_DELAYS_MASK 0x1f
+#define REG_READ_DATA_SAMPLE_DELAYS_OFFS 8
+
+#define REG_READ_DATA_READY_DELAYS_ADDR 0x153c
+#define REG_READ_DATA_READY_DELAYS_MASK 0x1f
+#define REG_READ_DATA_READY_DELAYS_OFFS 8
+
+int ddr3_if_ecc_enabled(void)
+{
+ struct hws_topology_map *tm = ddr3_get_topology_map();
+
+ if (DDR3_IS_ECC_PUP4_MODE(tm->bus_act_mask) ||
+ DDR3_IS_ECC_PUP3_MODE(tm->bus_act_mask))
+ return 1;
+ else
+ return 0;
+}
+
+int ddr3_pre_algo_config(void)
+{
+ struct hws_topology_map *tm = ddr3_get_topology_map();
+
+ /* Set Bus3 ECC training mode */
+ if (DDR3_IS_ECC_PUP3_MODE(tm->bus_act_mask)) {
+ /* Set Bus3 ECC MUX */
+ CHECK_STATUS(ddr3_tip_if_write
+ (0, ACCESS_TYPE_UNICAST, PARAM_NOT_CARE,
+ REG_SDRAM_PINS_MUX, 0x100, 0x100));
+ }
+
+ /* Set regular ECC training mode (bus4 and bus 3) */
+ if ((DDR3_IS_ECC_PUP4_MODE(tm->bus_act_mask)) ||
+ (DDR3_IS_ECC_PUP3_MODE(tm->bus_act_mask))) {
+ /* Enable ECC Write MUX */
+ CHECK_STATUS(ddr3_tip_if_write
+ (0, ACCESS_TYPE_UNICAST, PARAM_NOT_CARE,
+ TRAINING_SW_2_REG, 0x100, 0x100));
+ /* General ECC enable */
+ CHECK_STATUS(ddr3_tip_if_write
+ (0, ACCESS_TYPE_UNICAST, PARAM_NOT_CARE,
+ REG_SDRAM_CONFIG_ADDR, 0x40000, 0x40000));
+ /* Disable Read Data ECC MUX */
+ CHECK_STATUS(ddr3_tip_if_write
+ (0, ACCESS_TYPE_UNICAST, PARAM_NOT_CARE,
+ TRAINING_SW_2_REG, 0x0, 0x2));
+ }
+
+ return MV_OK;
+}
+
+int ddr3_post_algo_config(void)
+{
+ struct hws_topology_map *tm = ddr3_get_topology_map();
+ int status;
+
+ status = ddr3_post_run_alg();
+ if (MV_OK != status) {
+ printf("DDR3 Post Run Alg - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ /* Un_set ECC training mode */
+ if ((DDR3_IS_ECC_PUP4_MODE(tm->bus_act_mask)) ||
+ (DDR3_IS_ECC_PUP3_MODE(tm->bus_act_mask))) {
+ /* Disable ECC Write MUX */
+ CHECK_STATUS(ddr3_tip_if_write
+ (0, ACCESS_TYPE_UNICAST, PARAM_NOT_CARE,
+ TRAINING_SW_2_REG, 0x0, 0x100));
+ /* General ECC and Bus3 ECC MUX remains enabled */
+ }
+
+ return MV_OK;
+}
+
+int ddr3_hws_hw_training(void)
+{
+ enum hws_algo_type algo_mode = ALGO_TYPE_DYNAMIC;
+ int status;
+ struct init_cntr_param init_param;
+
+ status = ddr3_silicon_pre_init();
+ if (MV_OK != status) {
+ printf("DDR3 Pre silicon Config - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ init_param.do_mrs_phy = 1;
+#if defined(CONFIG_ARMADA_38X) || defined(CONFIG_ARMADA_39X)
+ init_param.is_ctrl64_bit = 0;
+#else
+ init_param.is_ctrl64_bit = 1;
+#endif
+#if defined(CONFIG_ALLEYCAT3) || defined(CONFIG_ARMADA_38X) || \
+ defined(CONFIG_ARMADA_39X)
+ init_param.init_phy = 1;
+#else
+ init_param.init_phy = 0;
+#endif
+ init_param.msys_init = 1;
+ status = hws_ddr3_tip_init_controller(0, &init_param);
+ if (MV_OK != status) {
+ printf("DDR3 init controller - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ status = ddr3_silicon_post_init();
+ if (MV_OK != status) {
+ printf("DDR3 Post Init - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ status = ddr3_pre_algo_config();
+ if (MV_OK != status) {
+ printf("DDR3 Pre Algo Config - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ /* run algorithm in order to configure the PHY */
+ status = hws_ddr3_tip_run_alg(0, algo_mode);
+ if (MV_OK != status) {
+ printf("DDR3 run algorithm - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ status = ddr3_post_algo_config();
+ if (MV_OK != status) {
+ printf("DDR3 Post Algo Config - FAILED 0x%x\n", status);
+ return status;
+ }
+
+ return MV_OK;
+}