diff options
Diffstat (limited to 'drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c')
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr3_hws_hw_training.c | 148 |
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 00000000000..560da7ee80b --- /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; +} |