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>

1 files changed, 322 insertions, 0 deletions

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_ */