driver/ddr/altera: Add the sdram calibration portion
This patch adds the DDR calibration portion of the Altera SDRAM driver.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
diff --git a/drivers/ddr/altera/sequencer.h b/drivers/ddr/altera/sequencer.h
new file mode 100644
index 0000000..ed2bae2
--- /dev/null
+++ b/drivers/ddr/altera/sequencer.h
@@ -0,0 +1,322 @@
+/*
+ * Copyright Altera Corporation (C) 2012-2015
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _SEQUENCER_H_
+#define _SEQUENCER_H_
+
+#define RW_MGR_NUM_DM_PER_WRITE_GROUP (RW_MGR_MEM_DATA_MASK_WIDTH \
+ / RW_MGR_MEM_IF_WRITE_DQS_WIDTH)
+#define RW_MGR_NUM_TRUE_DM_PER_WRITE_GROUP (RW_MGR_TRUE_MEM_DATA_MASK_WIDTH \
+ / RW_MGR_MEM_IF_WRITE_DQS_WIDTH)
+
+#define RW_MGR_NUM_DQS_PER_WRITE_GROUP (RW_MGR_MEM_IF_READ_DQS_WIDTH \
+ / RW_MGR_MEM_IF_WRITE_DQS_WIDTH)
+#define NUM_RANKS_PER_SHADOW_REG (RW_MGR_MEM_NUMBER_OF_RANKS / NUM_SHADOW_REGS)
+
+#define RW_MGR_RUN_SINGLE_GROUP (BASE_RW_MGR)
+#define RW_MGR_RUN_ALL_GROUPS (BASE_RW_MGR + 0x0400)
+
+#define RW_MGR_DI_BASE (BASE_RW_MGR + 0x0020)
+
+#define RW_MGR_MEM_NUMBER_OF_RANKS 1
+#define NUM_SHADOW_REGS 1
+
+#define RW_MGR_RESET_READ_DATAPATH (BASE_RW_MGR + 0x1000)
+#define RW_MGR_SET_CS_AND_ODT_MASK (BASE_RW_MGR + 0x1400)
+
+#define RW_MGR_RANK_NONE 0xFF
+#define RW_MGR_RANK_ALL 0x00
+
+#define RW_MGR_ODT_MODE_OFF 0
+#define RW_MGR_ODT_MODE_READ_WRITE 1
+
+#define NUM_CALIB_REPEAT 1
+
+#define NUM_READ_TESTS 7
+#define NUM_READ_PB_TESTS 7
+#define NUM_WRITE_TESTS 15
+#define NUM_WRITE_PB_TESTS 31
+
+#define PASS_ALL_BITS 1
+#define PASS_ONE_BIT 0
+
+/* calibration stages */
+#define CAL_STAGE_NIL 0
+#define CAL_STAGE_VFIFO 1
+#define CAL_STAGE_WLEVEL 2
+#define CAL_STAGE_LFIFO 3
+#define CAL_STAGE_WRITES 4
+#define CAL_STAGE_FULLTEST 5
+#define CAL_STAGE_REFRESH 6
+#define CAL_STAGE_CAL_SKIPPED 7
+#define CAL_STAGE_CAL_ABORTED 8
+#define CAL_STAGE_VFIFO_AFTER_WRITES 9
+
+/* calibration substages */
+#define CAL_SUBSTAGE_NIL 0
+#define CAL_SUBSTAGE_GUARANTEED_READ 1
+#define CAL_SUBSTAGE_DQS_EN_PHASE 2
+#define CAL_SUBSTAGE_VFIFO_CENTER 3
+#define CAL_SUBSTAGE_WORKING_DELAY 1
+#define CAL_SUBSTAGE_LAST_WORKING_DELAY 2
+#define CAL_SUBSTAGE_WLEVEL_COPY 3
+#define CAL_SUBSTAGE_WRITES_CENTER 1
+#define CAL_SUBSTAGE_READ_LATENCY 1
+#define CAL_SUBSTAGE_REFRESH 1
+
+#define MAX_RANKS (RW_MGR_MEM_NUMBER_OF_RANKS)
+#define MAX_DQS (RW_MGR_MEM_IF_WRITE_DQS_WIDTH > \
+ RW_MGR_MEM_IF_READ_DQS_WIDTH ? \
+ RW_MGR_MEM_IF_WRITE_DQS_WIDTH : \
+ RW_MGR_MEM_IF_READ_DQS_WIDTH)
+#define MAX_DQ (RW_MGR_MEM_DATA_WIDTH)
+#define MAX_DM (RW_MGR_MEM_DATA_MASK_WIDTH)
+
+/* length of VFIFO, from SW_MACROS */
+#define VFIFO_SIZE (READ_VALID_FIFO_SIZE)
+
+/* MarkW: how should these base addresses be done for A-V? */
+#define BASE_PTR_MGR 0x00040000
+#define BASE_SCC_MGR 0x00058000
+#define BASE_REG_FILE 0x00070000
+#define BASE_TIMER 0x00078000
+#define BASE_PHY_MGR 0x00088000
+#define BASE_RW_MGR 0x00090000
+#define BASE_DATA_MGR 0x00098000
+#define BASE_MMR 0x000C0000
+#define BASE_TRK_MGR 0x000D0000
+
+#define SCC_MGR_GROUP_COUNTER (BASE_SCC_MGR + 0x0000)
+#define SCC_MGR_DQS_IN_DELAY (BASE_SCC_MGR + 0x0100)
+#define SCC_MGR_DQS_EN_PHASE (BASE_SCC_MGR + 0x0200)
+#define SCC_MGR_DQS_EN_DELAY (BASE_SCC_MGR + 0x0300)
+#define SCC_MGR_DQDQS_OUT_PHASE (BASE_SCC_MGR + 0x0400)
+#define SCC_MGR_OCT_OUT1_DELAY (BASE_SCC_MGR + 0x0500)
+#define SCC_MGR_IO_OUT1_DELAY (BASE_SCC_MGR + 0x0700)
+#define SCC_MGR_IO_IN_DELAY (BASE_SCC_MGR + 0x0900)
+
+/* HHP-HPS-specific versions of some commands */
+#define SCC_MGR_DQS_EN_DELAY_GATE (BASE_SCC_MGR + 0x0600)
+#define SCC_MGR_IO_OE_DELAY (BASE_SCC_MGR + 0x0800)
+#define SCC_MGR_HHP_GLOBALS (BASE_SCC_MGR + 0x0A00)
+#define SCC_MGR_HHP_RFILE (BASE_SCC_MGR + 0x0B00)
+#define SCC_MGR_AFI_CAL_INIT (BASE_SCC_MGR + 0x0D00)
+
+#define SDR_PHYGRP_SCCGRP_ADDRESS 0x0
+#define SDR_PHYGRP_PHYMGRGRP_ADDRESS 0x1000
+#define SDR_PHYGRP_RWMGRGRP_ADDRESS 0x2000
+#define SDR_PHYGRP_DATAMGRGRP_ADDRESS 0x4000
+#define SDR_PHYGRP_REGFILEGRP_ADDRESS 0x4800
+
+#define SDR_CTRLGRP_PHYCTRL_PHYCTRL_0_OFFSET 0x150
+#define SDR_CTRLGRP_PHYCTRL_PHYCTRL_1_OFFSET 0x154
+#define SDR_CTRLGRP_PHYCTRL_PHYCTRL_2_OFFSET 0x158
+
+#define PHY_MGR_CAL_RESET (0)
+#define PHY_MGR_CAL_SUCCESS (1)
+#define PHY_MGR_CAL_FAIL (2)
+
+#define CALIB_SKIP_DELAY_LOOPS (1 << 0)
+#define CALIB_SKIP_ALL_BITS_CHK (1 << 1)
+#define CALIB_SKIP_DELAY_SWEEPS (1 << 2)
+#define CALIB_SKIP_VFIFO (1 << 3)
+#define CALIB_SKIP_LFIFO (1 << 4)
+#define CALIB_SKIP_WLEVEL (1 << 5)
+#define CALIB_SKIP_WRITES (1 << 6)
+#define CALIB_SKIP_FULL_TEST (1 << 7)
+#define CALIB_SKIP_ALL (CALIB_SKIP_VFIFO | \
+ CALIB_SKIP_LFIFO | CALIB_SKIP_WLEVEL | \
+ CALIB_SKIP_WRITES | CALIB_SKIP_FULL_TEST)
+#define CALIB_IN_RTL_SIM (1 << 8)
+
+/* Scan chain manager command addresses */
+#define READ_SCC_OCT_OUT2_DELAY 0
+#define READ_SCC_DQ_OUT2_DELAY 0
+#define READ_SCC_DQS_IO_OUT2_DELAY 0
+#define READ_SCC_DM_IO_OUT2_DELAY 0
+
+/* HHP-HPS-specific values */
+#define SCC_MGR_HHP_EXTRAS_OFFSET 0
+#define SCC_MGR_HHP_DQSE_MAP_OFFSET 1
+
+/* PHY Debug mode flag constants */
+#define PHY_DEBUG_IN_DEBUG_MODE 0x00000001
+#define PHY_DEBUG_ENABLE_CAL_RPT 0x00000002
+#define PHY_DEBUG_ENABLE_MARGIN_RPT 0x00000004
+#define PHY_DEBUG_SWEEP_ALL_GROUPS 0x00000008
+#define PHY_DEBUG_DISABLE_GUARANTEED_READ 0x00000010
+#define PHY_DEBUG_ENABLE_NON_DESTRUCTIVE_CALIBRATION 0x00000020
+
+/* Init and Reset delay constants - Only use if defined by sequencer_defines.h,
+ * otherwise, revert to defaults
+ * Default for Tinit = (0+1) * ((202+1) * (2 * 131 + 1) + 1) = 53532 =
+ * 200.75us @ 266MHz
+ */
+#ifdef TINIT_CNTR0_VAL
+#define SEQ_TINIT_CNTR0_VAL TINIT_CNTR0_VAL
+#else
+#define SEQ_TINIT_CNTR0_VAL 0
+#endif
+
+#ifdef TINIT_CNTR1_VAL
+#define SEQ_TINIT_CNTR1_VAL TINIT_CNTR1_VAL
+#else
+#define SEQ_TINIT_CNTR1_VAL 202
+#endif
+
+#ifdef TINIT_CNTR2_VAL
+#define SEQ_TINIT_CNTR2_VAL TINIT_CNTR2_VAL
+#else
+#define SEQ_TINIT_CNTR2_VAL 131
+#endif
+
+
+/* Default for Treset = (2+1) * ((252+1) * (2 * 131 + 1) + 1) = 133563 =
+ * 500.86us @ 266MHz
+ */
+#ifdef TRESET_CNTR0_VAL
+#define SEQ_TRESET_CNTR0_VAL TRESET_CNTR0_VAL
+#else
+#define SEQ_TRESET_CNTR0_VAL 2
+#endif
+
+#ifdef TRESET_CNTR1_VAL
+#define SEQ_TRESET_CNTR1_VAL TRESET_CNTR1_VAL
+#else
+#define SEQ_TRESET_CNTR1_VAL 252
+#endif
+
+#ifdef TRESET_CNTR2_VAL
+#define SEQ_TRESET_CNTR2_VAL TRESET_CNTR2_VAL
+#else
+#define SEQ_TRESET_CNTR2_VAL 131
+#endif
+
+#define RW_MGR_INST_ROM_WRITE BASE_RW_MGR + 0x1800
+#define RW_MGR_AC_ROM_WRITE BASE_RW_MGR + 0x1C00
+
+struct socfpga_sdr_rw_load_manager {
+ u32 load_cntr0;
+ u32 load_cntr1;
+ u32 load_cntr2;
+ u32 load_cntr3;
+};
+
+struct socfpga_sdr_rw_load_jump_manager {
+ u32 load_jump_add0;
+ u32 load_jump_add1;
+ u32 load_jump_add2;
+ u32 load_jump_add3;
+};
+
+struct socfpga_sdr_reg_file {
+ u32 signature;
+ u32 debug_data_addr;
+ u32 cur_stage;
+ u32 fom;
+ u32 failing_stage;
+ u32 debug1;
+ u32 debug2;
+ u32 dtaps_per_ptap;
+ u32 trk_sample_count;
+ u32 trk_longidle;
+ u32 delays;
+ u32 trk_rw_mgr_addr;
+ u32 trk_read_dqs_width;
+ u32 trk_rfsh;
+};
+
+/* parameter variable holder */
+struct param_type {
+ uint32_t dm_correct_mask;
+ uint32_t read_correct_mask;
+ uint32_t read_correct_mask_vg;
+ uint32_t write_correct_mask;
+ uint32_t write_correct_mask_vg;
+
+ /* set a particular entry to 1 if we need to skip a particular rank */
+
+ uint32_t skip_ranks[MAX_RANKS];
+
+ /* set a particular entry to 1 if we need to skip a particular group */
+
+ uint32_t skip_groups;
+
+ /* set a particular entry to 1 if the shadow register
+ (which represents a set of ranks) needs to be skipped */
+
+ uint32_t skip_shadow_regs[NUM_SHADOW_REGS];
+
+};
+
+
+/* global variable holder */
+struct gbl_type {
+ uint32_t phy_debug_mode_flags;
+
+ /* current read latency */
+
+ uint32_t curr_read_lat;
+
+ /* current write latency */
+
+ uint32_t curr_write_lat;
+
+ /* error code */
+
+ uint32_t error_substage;
+ uint32_t error_stage;
+ uint32_t error_group;
+
+ /* figure-of-merit in, figure-of-merit out */
+
+ uint32_t fom_in;
+ uint32_t fom_out;
+
+ /*USER Number of RW Mgr NOP cycles between
+ write command and write data */
+ uint32_t rw_wl_nop_cycles;
+};
+
+struct socfpga_sdr_scc_mgr {
+ u32 dqs_ena;
+ u32 dqs_io_ena;
+ u32 dq_ena;
+ u32 dm_ena;
+ u32 __padding1[4];
+ u32 update;
+ u32 __padding2[7];
+ u32 active_rank;
+};
+
+/* PHY manager configuration registers. */
+struct socfpga_phy_mgr_cfg {
+ u32 phy_rlat;
+ u32 reset_mem_stbl;
+ u32 mux_sel;
+ u32 cal_status;
+ u32 cal_debug_info;
+ u32 vfifo_rd_en_ovrd;
+ u32 afi_wlat;
+ u32 afi_rlat;
+};
+
+/* PHY manager command addresses. */
+struct socfpga_phy_mgr_cmd {
+ u32 inc_vfifo_fr;
+ u32 inc_vfifo_hard_phy;
+ u32 fifo_reset;
+ u32 inc_vfifo_fr_hr;
+ u32 inc_vfifo_qr;
+};
+
+struct socfpga_data_mgr {
+ u32 __padding1;
+ u32 t_wl_add;
+ u32 mem_t_add;
+ u32 t_rl_add;
+};
+#endif /* _SEQUENCER_H_ */