Driver/DDR: Moving Freescale DDR driver to a common driver

Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.

Signed-off-by: York Sun <yorksun@freescale.com>

1 files changed, 377 insertions, 0 deletions

diff --git a/include/fsl_ddr_sdram.h b/include/fsl_ddr_sdram.h
new file mode 100644
index 0000000..16cccc7
--- /dev/null
+++ b/include/fsl_ddr_sdram.h
@@ -0,0 +1,377 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef FSL_DDR_MEMCTL_H
+#define FSL_DDR_MEMCTL_H
+
+/*
+ * Pick a basic DDR Technology.
+ */
+#include <ddr_spd.h>
+
+#define SDRAM_TYPE_DDR1    2
+#define SDRAM_TYPE_DDR2    3
+#define SDRAM_TYPE_LPDDR1  6
+#define SDRAM_TYPE_DDR3    7
+
+#define DDR_BL4		4	/* burst length 4 */
+#define DDR_BC4		DDR_BL4	/* burst chop for ddr3 */
+#define DDR_OTF		6	/* on-the-fly BC4 and BL8 */
+#define DDR_BL8		8	/* burst length 8 */
+
+#define DDR3_RTT_OFF		0
+#define DDR3_RTT_60_OHM		1 /* RTT_Nom = RZQ/4 */
+#define DDR3_RTT_120_OHM	2 /* RTT_Nom = RZQ/2 */
+#define DDR3_RTT_40_OHM		3 /* RTT_Nom = RZQ/6 */
+#define DDR3_RTT_20_OHM		4 /* RTT_Nom = RZQ/12 */
+#define DDR3_RTT_30_OHM		5 /* RTT_Nom = RZQ/8 */
+
+#define DDR2_RTT_OFF		0
+#define DDR2_RTT_75_OHM		1
+#define DDR2_RTT_150_OHM	2
+#define DDR2_RTT_50_OHM		3
+
+#if defined(CONFIG_SYS_FSL_DDR1)
+#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR	(1)
+typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
+#ifndef CONFIG_FSL_SDRAM_TYPE
+#define CONFIG_FSL_SDRAM_TYPE	SDRAM_TYPE_DDR1
+#endif
+#elif defined(CONFIG_SYS_FSL_DDR2)
+#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR	(3)
+typedef ddr2_spd_eeprom_t generic_spd_eeprom_t;
+#ifndef CONFIG_FSL_SDRAM_TYPE
+#define CONFIG_FSL_SDRAM_TYPE	SDRAM_TYPE_DDR2
+#endif
+#elif defined(CONFIG_SYS_FSL_DDR3)
+#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR	(3)	/* FIXME */
+typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
+#ifndef CONFIG_FSL_SDRAM_TYPE
+#define CONFIG_FSL_SDRAM_TYPE	SDRAM_TYPE_DDR3
+#endif
+#endif	/* #if defined(CONFIG_SYS_FSL_DDR1) */
+
+#define FSL_DDR_ODT_NEVER		0x0
+#define FSL_DDR_ODT_CS			0x1
+#define FSL_DDR_ODT_ALL_OTHER_CS	0x2
+#define FSL_DDR_ODT_OTHER_DIMM		0x3
+#define FSL_DDR_ODT_ALL			0x4
+#define FSL_DDR_ODT_SAME_DIMM		0x5
+#define FSL_DDR_ODT_CS_AND_OTHER_DIMM	0x6
+#define FSL_DDR_ODT_OTHER_CS_ONSAMEDIMM	0x7
+
+/* define bank(chip select) interleaving mode */
+#define FSL_DDR_CS0_CS1			0x40
+#define FSL_DDR_CS2_CS3			0x20
+#define FSL_DDR_CS0_CS1_AND_CS2_CS3	(FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3)
+#define FSL_DDR_CS0_CS1_CS2_CS3		(FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04)
+
+/* define memory controller interleaving mode */
+#define FSL_DDR_CACHE_LINE_INTERLEAVING	0x0
+#define FSL_DDR_PAGE_INTERLEAVING	0x1
+#define FSL_DDR_BANK_INTERLEAVING	0x2
+#define FSL_DDR_SUPERBANK_INTERLEAVING	0x3
+#define FSL_DDR_3WAY_1KB_INTERLEAVING	0xA
+#define FSL_DDR_3WAY_4KB_INTERLEAVING	0xC
+#define FSL_DDR_3WAY_8KB_INTERLEAVING	0xD
+/* placeholder for 4-way interleaving */
+#define FSL_DDR_4WAY_1KB_INTERLEAVING	0x1A
+#define FSL_DDR_4WAY_4KB_INTERLEAVING	0x1C
+#define FSL_DDR_4WAY_8KB_INTERLEAVING	0x1D
+
+#define SDRAM_CS_CONFIG_EN		0x80000000
+
+/* DDR_SDRAM_CFG - DDR SDRAM Control Configuration
+ */
+#define SDRAM_CFG_MEM_EN		0x80000000
+#define SDRAM_CFG_SREN			0x40000000
+#define SDRAM_CFG_ECC_EN		0x20000000
+#define SDRAM_CFG_RD_EN			0x10000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR1	0x02000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR2	0x03000000
+#define SDRAM_CFG_SDRAM_TYPE_MASK	0x07000000
+#define SDRAM_CFG_SDRAM_TYPE_SHIFT	24
+#define SDRAM_CFG_DYN_PWR		0x00200000
+#define SDRAM_CFG_DBW_MASK		0x00180000
+#define SDRAM_CFG_DBW_SHIFT		19
+#define SDRAM_CFG_32_BE			0x00080000
+#define SDRAM_CFG_16_BE			0x00100000
+#define SDRAM_CFG_8_BE			0x00040000
+#define SDRAM_CFG_NCAP			0x00020000
+#define SDRAM_CFG_2T_EN			0x00008000
+#define SDRAM_CFG_BI			0x00000001
+
+#define SDRAM_CFG2_D_INIT		0x00000010
+#define SDRAM_CFG2_ODT_CFG_MASK		0x00600000
+#define SDRAM_CFG2_ODT_NEVER		0
+#define SDRAM_CFG2_ODT_ONLY_WRITE	1
+#define SDRAM_CFG2_ODT_ONLY_READ	2
+#define SDRAM_CFG2_ODT_ALWAYS		3
+
+#define TIMING_CFG_2_CPO_MASK	0x0F800000
+
+#if defined(CONFIG_P4080)
+#define RD_TO_PRE_MASK		0xf
+#define RD_TO_PRE_SHIFT		13
+#define WR_DATA_DELAY_MASK	0xf
+#define WR_DATA_DELAY_SHIFT	9
+#else
+#define RD_TO_PRE_MASK		0x7
+#define RD_TO_PRE_SHIFT		13
+#define WR_DATA_DELAY_MASK	0x7
+#define WR_DATA_DELAY_SHIFT	10
+#endif
+
+/* DDR_MD_CNTL */
+#define MD_CNTL_MD_EN		0x80000000
+#define MD_CNTL_CS_SEL_CS0	0x00000000
+#define MD_CNTL_CS_SEL_CS1	0x10000000
+#define MD_CNTL_CS_SEL_CS2	0x20000000
+#define MD_CNTL_CS_SEL_CS3	0x30000000
+#define MD_CNTL_CS_SEL_CS0_CS1	0x40000000
+#define MD_CNTL_CS_SEL_CS2_CS3	0x50000000
+#define MD_CNTL_MD_SEL_MR	0x00000000
+#define MD_CNTL_MD_SEL_EMR	0x01000000
+#define MD_CNTL_MD_SEL_EMR2	0x02000000
+#define MD_CNTL_MD_SEL_EMR3	0x03000000
+#define MD_CNTL_SET_REF		0x00800000
+#define MD_CNTL_SET_PRE		0x00400000
+#define MD_CNTL_CKE_CNTL_LOW	0x00100000
+#define MD_CNTL_CKE_CNTL_HIGH	0x00200000
+#define MD_CNTL_WRCW		0x00080000
+#define MD_CNTL_MD_VALUE(x)	(x & 0x0000FFFF)
+
+/* DDR_CDR1 */
+#define DDR_CDR1_DHC_EN	0x80000000
+#define DDR_CDR1_ODT_SHIFT	17
+#define DDR_CDR1_ODT_MASK	0x6
+#define DDR_CDR2_ODT_MASK	0x1
+#define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
+#define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
+
+#if (defined(CONFIG_SYS_FSL_DDR_VER) && \
+	(CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))
+#define DDR_CDR_ODT_OFF		0x0
+#define DDR_CDR_ODT_120ohm	0x1
+#define DDR_CDR_ODT_180ohm	0x2
+#define DDR_CDR_ODT_75ohm	0x3
+#define DDR_CDR_ODT_110ohm	0x4
+#define DDR_CDR_ODT_60hm	0x5
+#define DDR_CDR_ODT_70ohm	0x6
+#define DDR_CDR_ODT_47ohm	0x7
+#else
+#define DDR_CDR_ODT_75ohm	0x0
+#define DDR_CDR_ODT_55ohm	0x1
+#define DDR_CDR_ODT_60ohm	0x2
+#define DDR_CDR_ODT_50ohm	0x3
+#define DDR_CDR_ODT_150ohm	0x4
+#define DDR_CDR_ODT_43ohm	0x5
+#define DDR_CDR_ODT_120ohm	0x6
+#endif
+
+/* Record of register values computed */
+typedef struct fsl_ddr_cfg_regs_s {
+	struct {
+		unsigned int bnds;
+		unsigned int config;
+		unsigned int config_2;
+	} cs[CONFIG_CHIP_SELECTS_PER_CTRL];
+	unsigned int timing_cfg_3;
+	unsigned int timing_cfg_0;
+	unsigned int timing_cfg_1;
+	unsigned int timing_cfg_2;
+	unsigned int ddr_sdram_cfg;
+	unsigned int ddr_sdram_cfg_2;
+	unsigned int ddr_sdram_mode;
+	unsigned int ddr_sdram_mode_2;
+	unsigned int ddr_sdram_mode_3;
+	unsigned int ddr_sdram_mode_4;
+	unsigned int ddr_sdram_mode_5;
+	unsigned int ddr_sdram_mode_6;
+	unsigned int ddr_sdram_mode_7;
+	unsigned int ddr_sdram_mode_8;
+	unsigned int ddr_sdram_md_cntl;
+	unsigned int ddr_sdram_interval;
+	unsigned int ddr_data_init;
+	unsigned int ddr_sdram_clk_cntl;
+	unsigned int ddr_init_addr;
+	unsigned int ddr_init_ext_addr;
+	unsigned int timing_cfg_4;
+	unsigned int timing_cfg_5;
+	unsigned int ddr_zq_cntl;
+	unsigned int ddr_wrlvl_cntl;
+	unsigned int ddr_wrlvl_cntl_2;
+	unsigned int ddr_wrlvl_cntl_3;
+	unsigned int ddr_sr_cntr;
+	unsigned int ddr_sdram_rcw_1;
+	unsigned int ddr_sdram_rcw_2;
+	unsigned int ddr_eor;
+	unsigned int ddr_cdr1;
+	unsigned int ddr_cdr2;
+	unsigned int err_disable;
+	unsigned int err_int_en;
+	unsigned int debug[32];
+} fsl_ddr_cfg_regs_t;
+
+typedef struct memctl_options_partial_s {
+	unsigned int all_dimms_ecc_capable;
+	unsigned int all_dimms_tckmax_ps;
+	unsigned int all_dimms_burst_lengths_bitmask;
+	unsigned int all_dimms_registered;
+	unsigned int all_dimms_unbuffered;
+	/*	unsigned int lowest_common_SPD_caslat; */
+	unsigned int all_dimms_minimum_trcd_ps;
+} memctl_options_partial_t;
+
+#define DDR_DATA_BUS_WIDTH_64 0
+#define DDR_DATA_BUS_WIDTH_32 1
+#define DDR_DATA_BUS_WIDTH_16 2
+/*
+ * Generalized parameters for memory controller configuration,
+ * might be a little specific to the FSL memory controller
+ */
+typedef struct memctl_options_s {
+	/*
+	 * Memory organization parameters
+	 *
+	 * if DIMM is present in the system
+	 * where DIMMs are with respect to chip select
+	 * where chip selects are with respect to memory boundaries
+	 */
+	unsigned int registered_dimm_en;    /* use registered DIMM support */
+
+	/* Options local to a Chip Select */
+	struct cs_local_opts_s {
+		unsigned int auto_precharge;
+		unsigned int odt_rd_cfg;
+		unsigned int odt_wr_cfg;
+		unsigned int odt_rtt_norm;
+		unsigned int odt_rtt_wr;
+	} cs_local_opts[CONFIG_CHIP_SELECTS_PER_CTRL];
+
+	/* Special configurations for chip select */
+	unsigned int memctl_interleaving;
+	unsigned int memctl_interleaving_mode;
+	unsigned int ba_intlv_ctl;
+	unsigned int addr_hash;
+
+	/* Operational mode parameters */
+	unsigned int ecc_mode;	 /* Use ECC? */
+	/* Initialize ECC using memory controller? */
+	unsigned int ecc_init_using_memctl;
+	unsigned int dqs_config;	/* Use DQS? maybe only with DDR2? */
+	/* SREN - self-refresh during sleep */
+	unsigned int self_refresh_in_sleep;
+	unsigned int dynamic_power;	/* DYN_PWR */
+	/* memory data width to use (16-bit, 32-bit, 64-bit) */
+	unsigned int data_bus_width;
+	unsigned int burst_length;	/* BL4, OTF and BL8 */
+	/* On-The-Fly Burst Chop enable */
+	unsigned int otf_burst_chop_en;
+	/* mirrior DIMMs for DDR3 */
+	unsigned int mirrored_dimm;
+	unsigned int quad_rank_present;
+	unsigned int ap_en;	/* address parity enable for RDIMM */
+	unsigned int x4_en;	/* enable x4 devices */
+
+	/* Global Timing Parameters */
+	unsigned int cas_latency_override;
+	unsigned int cas_latency_override_value;
+	unsigned int use_derated_caslat;
+	unsigned int additive_latency_override;
+	unsigned int additive_latency_override_value;
+
+	unsigned int clk_adjust;		/* */
+	unsigned int cpo_override;
+	unsigned int write_data_delay;		/* DQS adjust */
+
+	unsigned int wrlvl_override;
+	unsigned int wrlvl_sample;		/* Write leveling */
+	unsigned int wrlvl_start;
+	unsigned int wrlvl_ctl_2;
+	unsigned int wrlvl_ctl_3;
+
+	unsigned int half_strength_driver_enable;
+	unsigned int twot_en;
+	unsigned int threet_en;
+	unsigned int bstopre;
+	unsigned int tcke_clock_pulse_width_ps;	/* tCKE */
+	unsigned int tfaw_window_four_activates_ps;	/* tFAW --  FOUR_ACT */
+
+	/* Rtt impedance */
+	unsigned int rtt_override;		/* rtt_override enable */
+	unsigned int rtt_override_value;	/* that is Rtt_Nom for DDR3 */
+	unsigned int rtt_wr_override_value;	/* this is Rtt_WR for DDR3 */
+
+	/* Automatic self refresh */
+	unsigned int auto_self_refresh_en;
+	unsigned int sr_it;
+	/* ZQ calibration */
+	unsigned int zq_en;
+	/* Write leveling */
+	unsigned int wrlvl_en;
+	/* RCW override for RDIMM */
+	unsigned int rcw_override;
+	unsigned int rcw_1;
+	unsigned int rcw_2;
+	/* control register 1 */
+	unsigned int ddr_cdr1;
+	unsigned int ddr_cdr2;
+
+	unsigned int trwt_override;
+	unsigned int trwt;			/* read-to-write turnaround */
+} memctl_options_t;
+
+extern phys_size_t fsl_ddr_sdram(void);
+extern phys_size_t fsl_ddr_sdram_size(void);
+extern int fsl_use_spd(void);
+extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
+					unsigned int ctrl_num, int step);
+u32 fsl_ddr_get_intl3r(void);
+
+static void __board_assert_mem_reset(void)
+{
+}
+
+static void __board_deassert_mem_reset(void)
+{
+}
+
+void board_assert_mem_reset(void)
+	__attribute__((weak, alias("__board_assert_mem_reset")));
+
+void board_deassert_mem_reset(void)
+	__attribute__((weak, alias("__board_deassert_mem_reset")));
+
+static int __board_need_mem_reset(void)
+{
+	return 0;
+}
+
+int board_need_mem_reset(void)
+	__attribute__((weak, alias("__board_need_mem_reset")));
+
+/*
+ * The 85xx boards have a common prototype for fixed_sdram so put the
+ * declaration here.
+ */
+#ifdef CONFIG_MPC85xx
+extern phys_size_t fixed_sdram(void);
+#endif
+
+#if defined(CONFIG_DDR_ECC)
+extern void ddr_enable_ecc(unsigned int dram_size);
+#endif
+
+
+typedef struct fixed_ddr_parm{
+	int min_freq;
+	int max_freq;
+	fsl_ddr_cfg_regs_t *ddr_settings;
+} fixed_ddr_parm_t;
+#endif