nxp: ddr driver enablement for nxp layerscape soc
DDR driver for NXP layerscape SoC(s):
- lx2160aqds
- lx2162aqds
- lx2160ardb
- Other Board with SoC(s) like ls1046a, ls1043a etc;
-- These other boards are not verified yet.
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: York Sun <york.sun@nxp.com>
Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: Ic84a63cb30eba054f432d479862cd4d1097cbbaf
diff --git a/drivers/nxp/ddr/fsl-mmdc/ddr.mk b/drivers/nxp/ddr/fsl-mmdc/ddr.mk
new file mode 100644
index 0000000..e6cc7c1
--- /dev/null
+++ b/drivers/nxp/ddr/fsl-mmdc/ddr.mk
@@ -0,0 +1,19 @@
+#
+# Copyright 2021 NXP
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-----------------------------------------------------------------------------
+
+# MMDC ddr cntlr driver files
+
+DDR_DRIVERS_PATH := drivers/nxp/ddr
+
+DDR_CNTLR_SOURCES := ${DDR_DRIVERS_PATH}/fsl-mmdc/fsl_mmdc.c \
+ ${DDR_DRIVERS_PATH}/nxp-ddr/utility.c \
+ ${DDR_DRIVERS_PATH}/nxp-ddr/ddr.c \
+ ${DDR_DRIVERS_PATH}/nxp-ddr/ddrc.c
+
+PLAT_INCLUDES += -I$(DDR_DRIVERS_PATH)/include \
+ -I$(DDR_DRIVERS_PATH)/fsl-mmdc
+#------------------------------------------------
diff --git a/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.c b/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.c
new file mode 100644
index 0000000..7e6504e
--- /dev/null
+++ b/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+/*
+ * Generic driver for Freescale MMDC(Multi Mode DDR Controller).
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include "ddr_io.h"
+#include <drivers/delay_timer.h>
+#include <fsl_mmdc.h>
+
+static void set_wait_for_bits_clear(void *ptr, unsigned int value,
+ unsigned int bits)
+{
+ int timeout = 1000;
+
+ ddr_out32(ptr, value);
+
+ while ((ddr_in32(ptr) & bits) != 0) {
+ udelay(100);
+ timeout--;
+ }
+ if (timeout <= 0) {
+ INFO("Error: %llx", (unsigned long long)ptr);
+ INFO(" wait for clear timeout.\n");
+ }
+}
+
+void mmdc_init(const struct fsl_mmdc_info *priv, uintptr_t nxp_ddr_addr)
+{
+ struct mmdc_regs *mmdc = (struct mmdc_regs *)nxp_ddr_addr;
+ unsigned int tmp;
+
+ /* 1. set configuration request */
+ ddr_out32(&mmdc->mdscr, MDSCR_ENABLE_CON_REQ);
+
+ /* 2. configure the desired timing parameters */
+ ddr_out32(&mmdc->mdotc, priv->mdotc);
+ ddr_out32(&mmdc->mdcfg0, priv->mdcfg0);
+ ddr_out32(&mmdc->mdcfg1, priv->mdcfg1);
+ ddr_out32(&mmdc->mdcfg2, priv->mdcfg2);
+
+ /* 3. configure DDR type and other miscellaneous parameters */
+ ddr_out32(&mmdc->mdmisc, priv->mdmisc);
+ ddr_out32(&mmdc->mpmur0, MMDC_MPMUR0_FRC_MSR);
+ ddr_out32(&mmdc->mdrwd, priv->mdrwd);
+ ddr_out32(&mmdc->mpodtctrl, priv->mpodtctrl);
+
+ /* 4. configure the required delay while leaving reset */
+ ddr_out32(&mmdc->mdor, priv->mdor);
+
+ /* 5. configure DDR physical parameters */
+ /* set row/column address width, burst length, data bus width */
+ tmp = priv->mdctl & ~(MDCTL_SDE0 | MDCTL_SDE1);
+ ddr_out32(&mmdc->mdctl, tmp);
+ /* configure address space partition */
+ ddr_out32(&mmdc->mdasp, priv->mdasp);
+
+ /* 6. perform a ZQ calibration - not needed here, doing in #8b */
+
+ /* 7. enable MMDC with the desired chip select */
+#if (DDRC_NUM_CS == 1)
+ ddr_out32(&mmdc->mdctl, tmp | MDCTL_SDE0);
+#elif (DDRC_NUM_CS == 2)
+ ddr_out32(&mmdc->mdctl, tmp | MDCTL_SDE0 | MDCTL_SDE1);
+#else
+#error "Unsupported DDRC_NUM_CS"
+#endif
+
+ /* 8a. dram init sequence: update MRs for ZQ, ODT, PRE, etc */
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(8) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG |
+ CMD_BANK_ADDR_2);
+
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(0) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG |
+ CMD_BANK_ADDR_3);
+
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(4) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG |
+ CMD_BANK_ADDR_1);
+
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_MSB_MR_OP(0x19) |
+ CMD_ADDR_LSB_MR_ADDR(0x30) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG | CMD_BANK_ADDR_0);
+
+ /* 8b. ZQ calibration */
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_MSB_MR_OP(0x4) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_ZQ_CALIBRATION | CMD_BANK_ADDR_0);
+
+ set_wait_for_bits_clear(&mmdc->mpzqhwctrl, priv->mpzqhwctrl,
+ MPZQHWCTRL_ZQ_HW_FORCE);
+
+ /* 9a. calibrations now, wr lvl */
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(0x84) | MDSCR_WL_EN |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG | CMD_BANK_ADDR_1);
+
+ set_wait_for_bits_clear(&mmdc->mpwlgcr, MPWLGCR_HW_WL_EN,
+ MPWLGCR_HW_WL_EN);
+
+ mdelay(1);
+
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(4) |
+ MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG | CMD_BANK_ADDR_1);
+
+ ddr_out32(&mmdc->mdscr, MDSCR_ENABLE_CON_REQ);
+
+ mdelay(1);
+
+ /* 9b. read DQS gating calibration */
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_MSB_MR_OP(4) | MDSCR_ENABLE_CON_REQ |
+ CMD_PRECHARGE_BANK_OPEN | CMD_BANK_ADDR_0);
+
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(4) | MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG | CMD_BANK_ADDR_3);
+
+ ddr_out32(&mmdc->mppdcmpr2, MPPDCMPR2_MPR_COMPARE_EN);
+
+ /* set absolute read delay offset */
+ if (priv->mprddlctl != 0) {
+ ddr_out32(&mmdc->mprddlctl, priv->mprddlctl);
+ } else {
+ ddr_out32(&mmdc->mprddlctl, MMDC_MPRDDLCTL_DEFAULT_DELAY);
+ }
+
+ set_wait_for_bits_clear(&mmdc->mpdgctrl0,
+ AUTO_RD_DQS_GATING_CALIBRATION_EN,
+ AUTO_RD_DQS_GATING_CALIBRATION_EN);
+
+ ddr_out32(&mmdc->mdscr, MDSCR_ENABLE_CON_REQ | CMD_LOAD_MODE_REG |
+ CMD_BANK_ADDR_3);
+
+ /* 9c. read calibration */
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_MSB_MR_OP(4) | MDSCR_ENABLE_CON_REQ |
+ CMD_PRECHARGE_BANK_OPEN | CMD_BANK_ADDR_0);
+ ddr_out32(&mmdc->mdscr, CMD_ADDR_LSB_MR_ADDR(4) | MDSCR_ENABLE_CON_REQ |
+ CMD_LOAD_MODE_REG | CMD_BANK_ADDR_3);
+ ddr_out32(&mmdc->mppdcmpr2, MPPDCMPR2_MPR_COMPARE_EN);
+ set_wait_for_bits_clear(&mmdc->mprddlhwctl,
+ MPRDDLHWCTL_AUTO_RD_CALIBRATION_EN,
+ MPRDDLHWCTL_AUTO_RD_CALIBRATION_EN);
+
+ ddr_out32(&mmdc->mdscr, MDSCR_ENABLE_CON_REQ | CMD_LOAD_MODE_REG |
+ CMD_BANK_ADDR_3);
+
+ /* 10. configure power-down, self-refresh entry, exit parameters */
+ ddr_out32(&mmdc->mdpdc, priv->mdpdc);
+ ddr_out32(&mmdc->mapsr, MMDC_MAPSR_PWR_SAV_CTRL_STAT);
+
+ /* 11. ZQ config again? do nothing here */
+
+ /* 12. refresh scheme */
+ set_wait_for_bits_clear(&mmdc->mdref, priv->mdref,
+ MDREF_START_REFRESH);
+
+ /* 13. disable CON_REQ */
+ ddr_out32(&mmdc->mdscr, MDSCR_DISABLE_CFG_REQ);
+}
diff --git a/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.h b/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.h
new file mode 100644
index 0000000..31db552
--- /dev/null
+++ b/drivers/nxp/ddr/fsl-mmdc/fsl_mmdc.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef FSL_MMDC_H
+#define FSL_MMDC_H
+
+/* PHY Write Leveling Configuration and Error Status Register (MPWLGCR) */
+#define MPWLGCR_HW_WL_EN (1 << 0)
+
+/* PHY Pre-defined Compare and CA delay-line Configuration (MPPDCMPR2) */
+#define MPPDCMPR2_MPR_COMPARE_EN (1 << 0)
+
+
+/* MMDC PHY Read DQS gating control register 0 (MPDGCTRL0) */
+#define AUTO_RD_DQS_GATING_CALIBRATION_EN (1 << 28)
+
+/* MMDC PHY Read Delay HW Calibration Control Register (MPRDDLHWCTL) */
+#define MPRDDLHWCTL_AUTO_RD_CALIBRATION_EN (1 << 4)
+
+/* MMDC Core Power Saving Control and Status Register (MMDC_MAPSR) */
+#define MMDC_MAPSR_PWR_SAV_CTRL_STAT 0x00001067
+
+/* MMDC Core Refresh Control Register (MMDC_MDREF) */
+#define MDREF_START_REFRESH (1 << 0)
+
+/* MMDC Core Special Command Register (MDSCR) */
+#define CMD_ADDR_MSB_MR_OP(x) (x << 24)
+#define CMD_ADDR_LSB_MR_ADDR(x) (x << 16)
+#define MDSCR_DISABLE_CFG_REQ (0 << 15)
+#define MDSCR_ENABLE_CON_REQ (1 << 15)
+#define MDSCR_CON_ACK (1 << 14)
+#define MDSCR_WL_EN (1 << 9)
+#define CMD_NORMAL (0 << 4)
+#define CMD_PRECHARGE (1 << 4)
+#define CMD_AUTO_REFRESH (2 << 4)
+#define CMD_LOAD_MODE_REG (3 << 4)
+#define CMD_ZQ_CALIBRATION (4 << 4)
+#define CMD_PRECHARGE_BANK_OPEN (5 << 4)
+#define CMD_MRR (6 << 4)
+#define CMD_BANK_ADDR_0 0x0
+#define CMD_BANK_ADDR_1 0x1
+#define CMD_BANK_ADDR_2 0x2
+#define CMD_BANK_ADDR_3 0x3
+#define CMD_BANK_ADDR_4 0x4
+#define CMD_BANK_ADDR_5 0x5
+#define CMD_BANK_ADDR_6 0x6
+#define CMD_BANK_ADDR_7 0x7
+
+/* MMDC Core Control Register (MDCTL) */
+#define MDCTL_SDE0 (U(1) << 31)
+#define MDCTL_SDE1 (1 << 30)
+
+/* MMDC PHY ZQ HW control register (MMDC_MPZQHWCTRL) */
+#define MPZQHWCTRL_ZQ_HW_FORCE (1 << 16)
+
+/* MMDC PHY Measure Unit Register (MMDC_MPMUR0) */
+#define MMDC_MPMUR0_FRC_MSR (1 << 11)
+
+/* MMDC PHY Read delay-lines Configuration Register (MMDC_MPRDDLCTL) */
+/* default 64 for a quarter cycle delay */
+#define MMDC_MPRDDLCTL_DEFAULT_DELAY 0x40404040
+
+/* MMDC Registers */
+struct mmdc_regs {
+ unsigned int mdctl;
+ unsigned int mdpdc;
+ unsigned int mdotc;
+ unsigned int mdcfg0;
+ unsigned int mdcfg1;
+ unsigned int mdcfg2;
+ unsigned int mdmisc;
+ unsigned int mdscr;
+ unsigned int mdref;
+ unsigned int res1[2];
+ unsigned int mdrwd;
+ unsigned int mdor;
+ unsigned int mdmrr;
+ unsigned int mdcfg3lp;
+ unsigned int mdmr4;
+ unsigned int mdasp;
+ unsigned int res2[239];
+ unsigned int maarcr;
+ unsigned int mapsr;
+ unsigned int maexidr0;
+ unsigned int maexidr1;
+ unsigned int madpcr0;
+ unsigned int madpcr1;
+ unsigned int madpsr0;
+ unsigned int madpsr1;
+ unsigned int madpsr2;
+ unsigned int madpsr3;
+ unsigned int madpsr4;
+ unsigned int madpsr5;
+ unsigned int masbs0;
+ unsigned int masbs1;
+ unsigned int res3[2];
+ unsigned int magenp;
+ unsigned int res4[239];
+ unsigned int mpzqhwctrl;
+ unsigned int mpzqswctrl;
+ unsigned int mpwlgcr;
+ unsigned int mpwldectrl0;
+ unsigned int mpwldectrl1;
+ unsigned int mpwldlst;
+ unsigned int mpodtctrl;
+ unsigned int mprddqby0dl;
+ unsigned int mprddqby1dl;
+ unsigned int mprddqby2dl;
+ unsigned int mprddqby3dl;
+ unsigned int mpwrdqby0dl;
+ unsigned int mpwrdqby1dl;
+ unsigned int mpwrdqby2dl;
+ unsigned int mpwrdqby3dl;
+ unsigned int mpdgctrl0;
+ unsigned int mpdgctrl1;
+ unsigned int mpdgdlst0;
+ unsigned int mprddlctl;
+ unsigned int mprddlst;
+ unsigned int mpwrdlctl;
+ unsigned int mpwrdlst;
+ unsigned int mpsdctrl;
+ unsigned int mpzqlp2ctl;
+ unsigned int mprddlhwctl;
+ unsigned int mpwrdlhwctl;
+ unsigned int mprddlhwst0;
+ unsigned int mprddlhwst1;
+ unsigned int mpwrdlhwst0;
+ unsigned int mpwrdlhwst1;
+ unsigned int mpwlhwerr;
+ unsigned int mpdghwst0;
+ unsigned int mpdghwst1;
+ unsigned int mpdghwst2;
+ unsigned int mpdghwst3;
+ unsigned int mppdcmpr1;
+ unsigned int mppdcmpr2;
+ unsigned int mpswdar0;
+ unsigned int mpswdrdr0;
+ unsigned int mpswdrdr1;
+ unsigned int mpswdrdr2;
+ unsigned int mpswdrdr3;
+ unsigned int mpswdrdr4;
+ unsigned int mpswdrdr5;
+ unsigned int mpswdrdr6;
+ unsigned int mpswdrdr7;
+ unsigned int mpmur0;
+ unsigned int mpwrcadl;
+ unsigned int mpdccr;
+};
+
+struct fsl_mmdc_info {
+ unsigned int mdctl;
+ unsigned int mdpdc;
+ unsigned int mdotc;
+ unsigned int mdcfg0;
+ unsigned int mdcfg1;
+ unsigned int mdcfg2;
+ unsigned int mdmisc;
+ unsigned int mdref;
+ unsigned int mdrwd;
+ unsigned int mdor;
+ unsigned int mdasp;
+ unsigned int mpodtctrl;
+ unsigned int mpzqhwctrl;
+ unsigned int mprddlctl;
+};
+
+void mmdc_init(const struct fsl_mmdc_info *priv, uintptr_t nxp_ddr_addr);
+
+#endif /* FSL_MMDC_H */