[U-Boot] [PATCH v2 12/14] ddr: altera: stratix10: Add DDR support for Stratix10 SoC
chin.liang.see at intel.com
chin.liang.see at intel.com
Thu Oct 5 13:07:29 UTC 2017
From: Chin Liang See <chin.liang.see at intel.com>
Add DDR support for Stratix SoC
Signed-off-by: Chin Liang See <chin.liang.see at intel.com>
---
arch/arm/mach-socfpga/include/mach/sdram_s10.h | 333 +++++++++++++++++++++
drivers/ddr/altera/Makefile | 1 +
drivers/ddr/altera/sdram_s10.c | 382 +++++++++++++++++++++++++
3 files changed, 716 insertions(+)
create mode 100644 arch/arm/mach-socfpga/include/mach/sdram_s10.h
create mode 100644 drivers/ddr/altera/sdram_s10.c
diff --git a/arch/arm/mach-socfpga/include/mach/sdram_s10.h b/arch/arm/mach-socfpga/include/mach/sdram_s10.h
new file mode 100644
index 0000000..d0fd958
--- /dev/null
+++ b/arch/arm/mach-socfpga/include/mach/sdram_s10.h
@@ -0,0 +1,333 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _SDRAM_S10_H_
+#define _SDRAM_S10_H_
+
+unsigned long sdram_calculate_size(void);
+int sdram_mmr_init_full(unsigned int sdr_phy_reg);
+int sdram_calibration_full(void);
+
+#define DDR_TWR 15
+#define DDR_READ_LATENCY_DELAY 40
+#define DDR_ACTIVATE_FAWBANK 0x1
+
+
+struct socfpga_ecc_hmc {
+ uint32_t ip_rev_id;
+ uint32_t _pad_0x4_0x7;
+ uint32_t ddrioctrl;
+ uint32_t ddrcalstat;
+ uint32_t mpr_0beat1;
+ uint32_t mpr_1beat1;
+ uint32_t mpr_2beat1;
+ uint32_t mpr_3beat1;
+ uint32_t mpr_4beat1;
+ uint32_t mpr_5beat1;
+ uint32_t mpr_6beat1;
+ uint32_t mpr_7beat1;
+ uint32_t mpr_8beat1;
+ uint32_t mpr_0beat2;
+ uint32_t mpr_1beat2;
+ uint32_t mpr_2beat2;
+ uint32_t mpr_3beat2;
+ uint32_t mpr_4beat2;
+ uint32_t mpr_5beat2;
+ uint32_t mpr_6beat2;
+ uint32_t mpr_7beat2;
+ uint32_t mpr_8beat2;
+ uint32_t _pad_0x58_0x5f[2];
+ uint32_t auto_precharge;
+ uint32_t _pad_0x64_0xdf[31];
+ uint32_t dramaddrwidth;
+ uint32_t _pad_0xe4_0xff[7];
+ uint32_t eccctrl;
+ uint32_t eccctrl2;
+ uint32_t _pad_0x108_0x10f[2];
+ uint32_t errinten;
+ uint32_t errintens;
+ uint32_t errintenr;
+ uint32_t intmode;
+ uint32_t intstat;
+ uint32_t diaginttest;
+ uint32_t modstat;
+ uint32_t derraddra;
+ uint32_t serraddra;
+ uint32_t _pad_0x134_0x137;
+ uint32_t autowb_corraddr;
+ uint32_t serrcntreg;
+ uint32_t autowb_drop_cntreg;
+ uint32_t ecc_reg2wreccdatabus;
+ uint32_t ecc_rdeccdata2regbus;
+ uint32_t ecc_reg2rdeccdatabus;
+ uint32_t ecc_diagon;
+ uint32_t ecc_decstat;
+ uint32_t _pad_0x158_0x15f[2];
+ uint32_t ecc_errgenaddr_0;
+ uint32_t ecc_errgenaddr_1;
+ uint32_t ecc_errgenaddr_2;
+ uint32_t ecc_errgenaddr_3;
+ uint32_t ecc_ref2rddatabus_beat0;
+ uint32_t ecc_ref2rddatabus_beat1;
+ uint32_t ecc_ref2rddatabus_beat2;
+ uint32_t ecc_ref2rddatabus_beat3;
+ uint32_t ecc_errgenhaddr_0;
+ uint32_t ecc_errgenhaddr_1;
+ uint32_t ecc_errgenhaddr_2;
+ uint32_t ecc_errgenhaddr_3;
+ uint32_t ecc_rdeccdata2regbus_beat0;
+ uint32_t ecc_rdeccdata2regbus_beat1;
+ uint32_t ecc_rdeccdata2regbus_beat2;
+ uint32_t ecc_rdeccdata2regbus_beat3;
+ uint32_t _pad_0x1a0_0x1af[4];
+ uint32_t derrhaddr;
+ uint32_t serrhaddr;
+ uint32_t _pad_0x1b8_0x1bb;
+ uint32_t autowb_corrhaddr;
+ uint32_t _pad_0x1c0_0x20f[20];
+ uint32_t hpsintfcsel;
+ uint32_t rsthandshakectrl;
+ uint32_t rsthandshakestat;
+};
+
+struct socfpga_noc_ddr_scheduler {
+ uint32_t main_scheduler_id_coreid;
+ uint32_t main_scheduler_id_revisionid;
+ uint32_t main_scheduler_ddrconf;
+ uint32_t main_scheduler_ddrtiming;
+ uint32_t main_scheduler_ddrmode;
+ uint32_t main_scheduler_readlatency;
+ uint32_t _pad_0x18_0x37[8];
+ uint32_t main_scheduler_activate;
+ uint32_t main_scheduler_devtodev;
+ uint32_t main_scheduler_ddr4timing;
+};
+
+struct socfpga_io48_mmr {
+ uint32_t dbgcfg0;
+ uint32_t dbgcfg1;
+ uint32_t dbgcfg2;
+ uint32_t dbgcfg3;
+ uint32_t dbgcfg4;
+ uint32_t dbgcfg5;
+ uint32_t dbgcfg6;
+ uint32_t reserve0;
+ uint32_t reserve1;
+ uint32_t reserve2;
+ uint32_t ctrlcfg0;
+ uint32_t ctrlcfg1;
+ uint32_t ctrlcfg2;
+ uint32_t ctrlcfg3;
+ uint32_t ctrlcfg4;
+ uint32_t ctrlcfg5;
+ uint32_t ctrlcfg6;
+ uint32_t ctrlcfg7;
+ uint32_t ctrlcfg8;
+ uint32_t ctrlcfg9;
+ uint32_t dramtiming0;
+ uint32_t dramodt0;
+ uint32_t dramodt1;
+ uint32_t sbcfg0;
+ uint32_t sbcfg1;
+ uint32_t sbcfg2;
+ uint32_t sbcfg3;
+ uint32_t sbcfg4;
+ uint32_t sbcfg5;
+ uint32_t sbcfg6;
+ uint32_t sbcfg7;
+ uint32_t caltiming0;
+ uint32_t caltiming1;
+ uint32_t caltiming2;
+ uint32_t caltiming3;
+ uint32_t caltiming4;
+ uint32_t caltiming5;
+ uint32_t caltiming6;
+ uint32_t caltiming7;
+ uint32_t caltiming8;
+ uint32_t caltiming9;
+ uint32_t caltiming10;
+ uint32_t dramaddrw;
+ uint32_t sideband0;
+ uint32_t sideband1;
+ uint32_t sideband2;
+ uint32_t sideband3;
+ uint32_t sideband4;
+ uint32_t sideband5;
+ uint32_t sideband6;
+ uint32_t sideband7;
+ uint32_t sideband8;
+ uint32_t sideband9;
+ uint32_t sideband10;
+ uint32_t sideband11;
+ uint32_t sideband12;
+ uint32_t sideband13;
+ uint32_t sideband14;
+ uint32_t sideband15;
+ uint32_t dramsts;
+ uint32_t dbgdone;
+ uint32_t dbgsignals;
+ uint32_t dbgreset;
+ uint32_t dbgmatch;
+ uint32_t counter0mask;
+ uint32_t counter1mask;
+ uint32_t counter0match;
+ uint32_t counter1match;
+ uint32_t niosreserve0;
+ uint32_t niosreserve1;
+ uint32_t niosreserve2;
+};
+
+union dramaddrw_reg {
+ struct {
+ u32 cfg_col_addr_width:5;
+ u32 cfg_row_addr_width:5;
+ u32 cfg_bank_addr_width:4;
+ u32 cfg_bank_group_addr_width:2;
+ u32 cfg_cs_addr_width:3;
+ u32 reserved:13;
+ };
+ u32 word;
+};
+
+union ctrlcfg0_reg {
+ struct {
+ u32 cfg_mem_type:4;
+ u32 cfg_dimm_type:3;
+ u32 cfg_ac_pos:2;
+ u32 cfg_ctrl_burst_len:5;
+ u32 reserved:18; /* Other fields unused */
+ };
+ u32 word;
+};
+
+union ctrlcfg1_reg {
+ struct {
+ u32 cfg_dbc3_burst_len:5;
+ u32 cfg_addr_order:2;
+ u32 cfg_ctrl_enable_ecc:1;
+ u32 reserved:24; /* Other fields unused */
+ };
+ u32 word;
+};
+
+union dramtiming0_reg {
+ struct {
+ u32 cfg_tcl:6;
+ u32 reserved:8; /* Other fields unused */
+ };
+ u32 word;
+};
+
+union caltiming0_reg {
+ struct {
+ u32 cfg_act_to_rdwr:6;
+ u32 cfg_act_to_pch:6;
+ u32 cfg_act_to_act:6;
+ u32 cfg_act_to_act_db:6;
+ u32 reserved:8; /* Other fields unused */
+ };
+ u32 word;
+};
+
+union caltiming1_reg {
+ struct {
+ u32 cfg_rd_to_rd:6;
+ u32 cfg_rd_to_rd_dc:6;
+ u32 cfg_rd_to_rd_db:6;
+ u32 cfg_rd_to_wr:6;
+ u32 cfg_rd_to_wr_dc:6;
+ u32 reserved:2;
+ };
+ u32 word;
+};
+
+union caltiming2_reg {
+ struct {
+ u32 cfg_rd_to_wr_db:6;
+ u32 cfg_rd_to_pch:6;
+ u32 cfg_rd_ap_to_valid:6;
+ u32 cfg_wr_to_wr:6;
+ u32 cfg_wr_to_wr_dc:6;
+ u32 reserved:2;
+ };
+ u32 word;
+};
+
+union caltiming3_reg {
+ struct {
+ u32 cfg_wr_to_wr_db:6;
+ u32 cfg_wr_to_rd:6;
+ u32 cfg_wr_to_rd_dc:6;
+ u32 cfg_wr_to_rd_db:6;
+ u32 cfg_wr_to_pch:6;
+ u32 reserved:2;
+ };
+ u32 word;
+};
+
+union caltiming4_reg {
+ struct {
+ u32 cfg_wr_ap_to_valid:6;
+ u32 cfg_pch_to_valid:6;
+ u32 cfg_pch_all_to_valid:6;
+ u32 cfg_arf_to_valid:8;
+ u32 cfg_pdn_to_valid:6;
+ };
+ u32 word;
+};
+
+union caltiming9_reg {
+ struct {
+ u32 cfg_4_act_to_act:8;
+ u32 reserved:24;
+ };
+ u32 word;
+};
+
+#define DDR_SCHED_DDRTIMING_ACTTOACT_OFFSET 0
+#define DDR_SCHED_DDRTIMING_RDTOMISS_OFFSET 6
+#define DDR_SCHED_DDRTIMING_WRTOMISS_OFFSET 12
+#define DDR_SCHED_DDRTIMING_BURSTLEN_OFFSET 18
+#define DDR_SCHED_DDRTIMING_RDTOWR_OFFSET 21
+#define DDR_SCHED_DDRTIMING_WRTORD_OFFSET 26
+#define DDR_SCHED_DDRTIMING_BWRATIO_OFFSET 31
+#define DDR_SCHED_DDRMOD_BWRATIOEXTENDED_OFFSET 1
+#define DDR_SCHED_ACTIVATE_RRD_OFFSET 0
+#define DDR_SCHED_ACTIVATE_FAW_OFFSET 4
+#define DDR_SCHED_ACTIVATE_FAWBANK_OFFSET 10
+#define DDR_SCHED_DEVTODEV_BUSRDTORD_OFFSET 0
+#define DDR_SCHED_DEVTODEV_BUSRDTOWR_OFFSET 2
+#define DDR_SCHED_DEVTODEV_BUSWRTORD_OFFSET 4
+#define DDR_HMC_DDRIOCTRL_IOSIZE_MSK 0x00000003
+#define DDR_HMC_DDRCALSTAT_CAL_MSK 0x00000001
+#define DDR_HMC_ECCCTL_AWB_CNT_RST_SET_MSK 0x00010000
+#define DDR_HMC_ECCCTL_CNT_RST_SET_MSK 0x00000100
+#define DDR_HMC_ECCCTL_ECC_EN_SET_MSK 0x00000001
+#define DDR_HMC_ECCCTL2_RMW_EN_SET_MSK 0x00000100
+#define DDR_HMC_ECCCTL2_AWB_EN_SET_MSK 0x00000001
+#define DDR_HMC_RSTHANDSHAKE_MASK 0x000000ff
+#define DDR_HMC_CORE2SEQ_INT_REQ 0xF
+#define DDR_HMC_SEQ2CORE_INT_RESP_MASK 0x8
+#define DDR_HMC_HPSINTFCSEL_ENABLE_MASK 0x001f1f1f
+
+#define CCU_CPU0_MPRT_ADBASE_DDRREG_ADDR 0xf7004400
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE0_ADDR 0xf70045c0
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE1A_ADDR 0xf70045e0
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE1B_ADDR 0xf7004600
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE1C_ADDR 0xf7004620
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE1D_ADDR 0xf7004640
+#define CCU_CPU0_MPRT_ADBASE_MEMSPACE1E_ADDR 0xf7004660
+
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE0_ADDR 0xf7018560
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE1A_ADDR 0xf7018580
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE1B_ADDR 0xf70185a0
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE1C_ADDR 0xf70185c0
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE1D_ADDR 0xf70185e0
+#define CCU_IOM_MPRT_ADBASE_MEMSPACE1E_ADDR 0xf7018600
+
+#define CCU_ADBASE_DI_MASK 0x00000010
+
+#endif /* _SDRAM_S10_H_ */
diff --git a/drivers/ddr/altera/Makefile b/drivers/ddr/altera/Makefile
index bdd2872..943b6cd 100644
--- a/drivers/ddr/altera/Makefile
+++ b/drivers/ddr/altera/Makefile
@@ -10,4 +10,5 @@
ifdef CONFIG_ALTERA_SDRAM
obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += sdram.o sequencer.o
+obj-$(CONFIG_TARGET_SOCFPGA_STRATIX10) += sdram_s10.o
endif
diff --git a/drivers/ddr/altera/sdram_s10.c b/drivers/ddr/altera/sdram_s10.c
new file mode 100644
index 0000000..c488caf
--- /dev/null
+++ b/drivers/ddr/altera/sdram_s10.c
@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <div64.h>
+#include <asm/io.h>
+#include <watchdog.h>
+#include <asm/arch/sdram_s10.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/reset_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_ecc_hmc *socfpga_ecc_hmc_base =
+ (void *)SOCFPGA_SDR_ADDRESS;
+static const struct socfpga_noc_ddr_scheduler *socfpga_noc_ddr_scheduler_base =
+ (void *)SOCFPGA_SDR_SCHEDULER_ADDRESS;
+static const struct socfpga_io48_mmr *socfpga_io48_mmr_base =
+ (void *)SOCFPGA_HMC_MMR_IO48_ADDRESS;
+static const struct socfpga_system_manager *sysmgr_regs =
+ (void *)SOCFPGA_SYSMGR_ADDRESS;
+
+#define DDR_CONFIG(A, B, C, R) ((A<<24)|(B<<16)|(C<<8)|R)
+
+/* The followring are the supported configurations */
+u32 ddr_config[] = {
+ /* DDR_CONFIG(Address order,Bank,Column,Row) */
+ /* List for DDR3 or LPDDR3 (pinout order > chip, row, bank, column) */
+ DDR_CONFIG(0, 3, 10, 12),
+ DDR_CONFIG(0, 3, 9, 13),
+ DDR_CONFIG(0, 3, 10, 13),
+ DDR_CONFIG(0, 3, 9, 14),
+ DDR_CONFIG(0, 3, 10, 14),
+ DDR_CONFIG(0, 3, 10, 15),
+ DDR_CONFIG(0, 3, 11, 14),
+ DDR_CONFIG(0, 3, 11, 15),
+ DDR_CONFIG(0, 3, 10, 16),
+ DDR_CONFIG(0, 3, 11, 16),
+ DDR_CONFIG(0, 3, 12, 15), /* 0xa */
+ /* List for DDR4 only (pinout order > chip, bank, row, column) */
+ DDR_CONFIG(1, 3, 10, 14),
+ DDR_CONFIG(1, 4, 10, 14),
+ DDR_CONFIG(1, 3, 10, 15),
+ DDR_CONFIG(1, 4, 10, 15),
+ DDR_CONFIG(1, 3, 10, 16),
+ DDR_CONFIG(1, 4, 10, 16),
+ DDR_CONFIG(1, 3, 10, 17),
+ DDR_CONFIG(1, 4, 10, 17),
+};
+
+#define DDR_CONFIG_ELEMENTS (sizeof(ddr_config)/sizeof(u32))
+
+int match_ddr_conf(u32 ddr_conf)
+{
+ int i;
+ for (i = 0; i < DDR_CONFIG_ELEMENTS; i++) {
+ if (ddr_conf == ddr_config[i])
+ return i;
+ }
+ return 0;
+}
+
+static int emif_clear(void)
+{
+ u32 s2c, i;
+
+ writel(0, &socfpga_ecc_hmc_base->rsthandshakectrl);
+ s2c = readl(&socfpga_ecc_hmc_base->rsthandshakestat) &
+ DDR_HMC_RSTHANDSHAKE_MASK;
+
+ for (i = 1000; (i > 0) && s2c; i--) {
+ WATCHDOG_RESET();
+ mdelay(1);
+ s2c = readl(&socfpga_ecc_hmc_base->rsthandshakestat) &
+ DDR_HMC_RSTHANDSHAKE_MASK;
+ }
+ return !s2c;
+}
+
+static int emif_reset(void)
+{
+ u32 c2s, s2c, i;
+
+ c2s = readl(&socfpga_ecc_hmc_base->rsthandshakectrl) &
+ DDR_HMC_RSTHANDSHAKE_MASK;
+ s2c = readl(&socfpga_ecc_hmc_base->rsthandshakestat) &
+ DDR_HMC_RSTHANDSHAKE_MASK;
+
+ debug("DDR: c2s=%08x s2c=%08x nr0=%08x nr1=%08x nr2=%08x dst=%08x\n",
+ c2s, s2c, readl(&socfpga_io48_mmr_base->niosreserve0),
+ readl(&socfpga_io48_mmr_base->niosreserve1),
+ readl(&socfpga_io48_mmr_base->niosreserve2),
+ readl(&socfpga_io48_mmr_base->dramsts));
+
+ if (s2c && emif_clear()) {
+ printf("DDR: emif_clear() failed\n");
+ return -1;
+ }
+
+ puts("DDR: Triggerring emif_reset\n");
+ writel(DDR_HMC_CORE2SEQ_INT_REQ,
+ &socfpga_ecc_hmc_base->rsthandshakectrl);
+
+ for (i = 1000; i > 0; i--) {
+ /* if seq2core[3] = 0, we are good */
+ if (!(readl(&socfpga_ecc_hmc_base->rsthandshakestat) &
+ DDR_HMC_SEQ2CORE_INT_RESP_MASK))
+ break;
+ WATCHDOG_RESET();
+ mdelay(1);
+ }
+
+ if (!i) {
+ printf("DDR: failed to get ack from EMIF\n");
+ return -2;
+ }
+
+ if (emif_clear()) {
+ printf("DDR: emif_clear() failed\n");
+ return -3;
+ }
+
+ printf("DDR: emif_reset triggered successly\n");
+ return 0;
+}
+
+static int poll_hmc_clock_status(void)
+{
+ u32 status, i;
+
+ for (i = 1000; i > 0; i--) {
+ status = readl(&sysmgr_regs->hmc_clk) &
+ SYSMGR_HMC_CLK_STATUS_MSK;
+ udelay(1);
+ if (status)
+ break;
+ WATCHDOG_RESET();
+ }
+ return status;
+}
+
+/**
+ * sdram_mmr_init_full() - Function to initialize SDRAM MMR
+ *
+ * Initialize the SDRAM MMR.
+ */
+int sdram_mmr_init_full(unsigned int unused)
+{
+ u32 update_value, io48_value, ddrioctl;
+ u32 i, j, cal_success;
+
+ /* Enable access to DDR from CPU master */
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_DDRREG_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE0_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE1A_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE1B_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE1C_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE1D_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_CPU0_MPRT_ADBASE_MEMSPACE1E_ADDR, CCU_ADBASE_DI_MASK);
+
+ /* Enable access to DDR from IO master */
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE0_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE1A_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE1B_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE1C_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE1D_ADDR, CCU_ADBASE_DI_MASK);
+ clrbits_le32(CCU_IOM_MPRT_ADBASE_MEMSPACE1E_ADDR, CCU_ADBASE_DI_MASK);
+
+ /* this enables nonsecure access to DDR */
+ /* mpuregion0addr_limit */
+ writel(0xFFFF0000, 0xF8020118);
+ writel(0x1F, 0xF802011c);
+
+ /* nonmpuregion0addr_limit */
+ writel(0xFFFF0000, 0xF8020198);
+ writel(0x1F, 0xF802019C);
+
+ /* Enable mpuregion0enable and nonmpuregion0enable */
+ writel(BIT(0) | BIT(8), 0xF8020100);
+
+ /* Ensure HMC clock is running */
+ if (!poll_hmc_clock_status()) {
+ puts("DDR: Error as HMC clock not running\n");
+ return -1;
+ }
+
+ /* release DDR scheduler from reset */
+ socfpga_per_reset(SOCFPGA_RESET(SDR), 0);
+
+ /* Try 3 times to do a calibration */
+ for (i = 0; i < 3; i++) {
+ cal_success = readl(&socfpga_ecc_hmc_base->ddrcalstat) &
+ DDR_HMC_DDRCALSTAT_CAL_MSK;
+ /* A delay to wait for calibration bit to set */
+ for (j = 0; (j < 1000) && !cal_success; j++) {
+ WATCHDOG_RESET();
+ mdelay(1);
+ cal_success = readl(&socfpga_ecc_hmc_base->ddrcalstat)
+ & DDR_HMC_DDRCALSTAT_CAL_MSK;
+ }
+
+ if (cal_success)
+ break;
+ else
+ emif_reset();
+ }
+
+ if (!cal_success) {
+ puts("DDR: Error as SDRAM calibration failed\n");
+ return -1;
+ }
+ puts("DDR: Calibration success\n");
+
+ union ctrlcfg0_reg ctrlcfg0 = (union ctrlcfg0_reg)
+ readl(&socfpga_io48_mmr_base->ctrlcfg0);
+ union ctrlcfg1_reg ctrlcfg1 = (union ctrlcfg1_reg)
+ readl(&socfpga_io48_mmr_base->ctrlcfg1);
+ union dramaddrw_reg dramaddrw = (union dramaddrw_reg)
+ readl(&socfpga_io48_mmr_base->dramaddrw);
+ union dramtiming0_reg dramtim0 = (union dramtiming0_reg)
+ readl(&socfpga_io48_mmr_base->dramtiming0);
+ union caltiming0_reg caltim0 = (union caltiming0_reg)
+ readl(&socfpga_io48_mmr_base->caltiming0);
+ union caltiming1_reg caltim1 = (union caltiming1_reg)
+ readl(&socfpga_io48_mmr_base->caltiming1);
+ union caltiming2_reg caltim2 = (union caltiming2_reg)
+ readl(&socfpga_io48_mmr_base->caltiming2);
+ union caltiming3_reg caltim3 = (union caltiming3_reg)
+ readl(&socfpga_io48_mmr_base->caltiming3);
+ union caltiming4_reg caltim4 = (union caltiming4_reg)
+ readl(&socfpga_io48_mmr_base->caltiming4);
+ union caltiming9_reg caltim9 = (union caltiming9_reg)
+ readl(&socfpga_io48_mmr_base->caltiming9);
+
+ /*
+ * Configure the DDR IO size [0xFFCFB008]
+ * niosreserve0: Used to indicate DDR width &
+ * bit[7:0] = Number of data bits (bit[6:5] 0x01=32bit, 0x10=64bit)
+ * bit[8] = 1 if user-mode OCT is present
+ * bit[9] = 1 if warm reset compiled into EMIF Cal Code
+ * bit[10] = 1 if warm reset is on during generation in EMIF Cal
+ * niosreserve1: IP ADCDS version encoded as 16 bit value
+ * bit[2:0] = Variant (0=not special,1=FAE beta, 2=Customer beta,
+ * 3=EAP, 4-6 are reserved)
+ * bit[5:3] = Service Pack # (e.g. 1)
+ * bit[9:6] = Minor Release #
+ * bit[14:10] = Major Release #
+ */
+ update_value = readl(&socfpga_io48_mmr_base->niosreserve0);
+ writel(((update_value & 0xFF) >> 5), &socfpga_ecc_hmc_base->ddrioctrl);
+ ddrioctl = readl(&socfpga_ecc_hmc_base->ddrioctrl);
+
+ /* enable HPS interface to HMC */
+ writel(DDR_HMC_HPSINTFCSEL_ENABLE_MASK,
+ &socfpga_ecc_hmc_base->hpsintfcsel);
+
+ /* Set the DDR Configuration */
+ io48_value = DDR_CONFIG(ctrlcfg1.cfg_addr_order,
+ (dramaddrw.cfg_bank_addr_width +
+ dramaddrw.cfg_bank_group_addr_width),
+ dramaddrw.cfg_col_addr_width,
+ dramaddrw.cfg_row_addr_width);
+
+ update_value = match_ddr_conf(io48_value);
+ if (update_value)
+ writel(update_value,
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_ddrconf);
+
+ /* Configure HMC dramaddrw */
+ writel(readl(&socfpga_io48_mmr_base->dramaddrw),
+ &socfpga_ecc_hmc_base->dramaddrwidth);
+
+ /*
+ * Configure DDR timing
+ * RDTOMISS = tRTP + tRP + tRCD - BL/2
+ * WRTOMISS = WL + tWR + tRP + tRCD and
+ * WL = RL + BL/2 + 2 - rd-to-wr ; tWR = 15ns so...
+ * First part of equation is in memory clock units so divide by 2
+ * for HMC clock units. 1066MHz is close to 1ns so use 15 directly.
+ * WRTOMISS = ((RL + BL/2 + 2 + tWR) >> 1)- rd-to-wr + tRP + tRCD
+ */
+ update_value = caltim2.cfg_rd_to_pch + caltim4.cfg_pch_to_valid +
+ caltim0.cfg_act_to_rdwr -
+ (ctrlcfg0.cfg_ctrl_burst_len >> 2);
+ io48_value = (((dramtim0.cfg_tcl + 2 + DDR_TWR +
+ (ctrlcfg0.cfg_ctrl_burst_len >> 1)) >> 1) -
+ /* Up to here was in memory cycles so divide by 2 */
+ caltim1.cfg_rd_to_wr + caltim0.cfg_act_to_rdwr +
+ caltim4.cfg_pch_to_valid);
+
+ writel(((caltim0.cfg_act_to_act << DDR_SCHED_DDRTIMING_ACTTOACT_OFFSET) |
+ (update_value << DDR_SCHED_DDRTIMING_RDTOMISS_OFFSET) |
+ (io48_value << DDR_SCHED_DDRTIMING_WRTOMISS_OFFSET) |
+ ((ctrlcfg0.cfg_ctrl_burst_len >> 2) <<
+ DDR_SCHED_DDRTIMING_BURSTLEN_OFFSET) |
+ (caltim1.cfg_rd_to_wr << DDR_SCHED_DDRTIMING_RDTOWR_OFFSET) |
+ (caltim3.cfg_wr_to_rd << DDR_SCHED_DDRTIMING_WRTORD_OFFSET) |
+ (((ddrioctl == 1) ? 1 : 0) <<
+ DDR_SCHED_DDRTIMING_BWRATIO_OFFSET)),
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_ddrtiming);
+
+ /* Configure DDR mode [precharge = 0] */
+ writel(((ddrioctl ? 0 : 1) << DDR_SCHED_DDRMOD_BWRATIOEXTENDED_OFFSET),
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_ddrmode);
+
+ /* Configure the read latency */
+ writel((dramtim0.cfg_tcl >> 1) + DDR_READ_LATENCY_DELAY,
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_readlatency);
+
+ /*
+ * Configuring timing values concerning activate commands
+ * [FAWBANK alway 1 because always 4 bank DDR]
+ */
+ writel(((caltim0.cfg_act_to_act_db << DDR_SCHED_ACTIVATE_RRD_OFFSET) |
+ (caltim9.cfg_4_act_to_act << DDR_SCHED_ACTIVATE_FAW_OFFSET) |
+ (DDR_ACTIVATE_FAWBANK << DDR_SCHED_ACTIVATE_FAWBANK_OFFSET)),
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_activate);
+
+ /*
+ * Configuring timing values concerning device to device data bus
+ * ownership change
+ */
+ writel(((caltim1.cfg_rd_to_rd_dc <<
+ DDR_SCHED_DEVTODEV_BUSRDTORD_OFFSET) |
+ (caltim1.cfg_rd_to_wr_dc <<
+ DDR_SCHED_DEVTODEV_BUSRDTOWR_OFFSET) |
+ (caltim3.cfg_wr_to_rd_dc <<
+ DDR_SCHED_DEVTODEV_BUSWRTORD_OFFSET)),
+ &socfpga_noc_ddr_scheduler_base->main_scheduler_devtodev);
+
+ /* Enable or disable the SDRAM ECC */
+ if (ctrlcfg1.cfg_ctrl_enable_ecc) {
+ setbits_le32(&socfpga_ecc_hmc_base->eccctrl,
+ (DDR_HMC_ECCCTL_AWB_CNT_RST_SET_MSK |
+ DDR_HMC_ECCCTL_CNT_RST_SET_MSK |
+ DDR_HMC_ECCCTL_ECC_EN_SET_MSK));
+ clrbits_le32(&socfpga_ecc_hmc_base->eccctrl,
+ (DDR_HMC_ECCCTL_AWB_CNT_RST_SET_MSK |
+ DDR_HMC_ECCCTL_CNT_RST_SET_MSK));
+ setbits_le32(&socfpga_ecc_hmc_base->eccctrl2,
+ (DDR_HMC_ECCCTL2_RMW_EN_SET_MSK |
+ DDR_HMC_ECCCTL2_AWB_EN_SET_MSK));
+ } else {
+ clrbits_le32(&socfpga_ecc_hmc_base->eccctrl,
+ (DDR_HMC_ECCCTL_AWB_CNT_RST_SET_MSK |
+ DDR_HMC_ECCCTL_CNT_RST_SET_MSK |
+ DDR_HMC_ECCCTL_ECC_EN_SET_MSK));
+ clrbits_le32(&socfpga_ecc_hmc_base->eccctrl2,
+ (DDR_HMC_ECCCTL2_RMW_EN_SET_MSK |
+ DDR_HMC_ECCCTL2_AWB_EN_SET_MSK));
+ }
+
+ puts("DDR: HMC init success\n");
+ return 0;
+}
+
+/**
+ * sdram_calculate_size() - Calculate SDRAM size
+ *
+ * Calculate SDRAM device size based on SDRAM controller parameters.
+ * Size is specified in bytes.
+ */
+unsigned long sdram_calculate_size(void)
+{
+ union dramaddrw_reg dramaddrw =
+ (union dramaddrw_reg)readl(&socfpga_io48_mmr_base->dramaddrw);
+
+ u32 size = (1 << (dramaddrw.cfg_cs_addr_width +
+ dramaddrw.cfg_bank_group_addr_width +
+ dramaddrw.cfg_bank_addr_width +
+ dramaddrw.cfg_row_addr_width +
+ dramaddrw.cfg_col_addr_width));
+
+ size *= (2 << (readl(&socfpga_ecc_hmc_base->ddrioctrl) &
+ DDR_HMC_DDRIOCTRL_IOSIZE_MSK));
+
+ return size;
+}
--
2.2.2
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