From: Tien Fong Chee tien.fong.chee@intel.com
Add DDR driver support for Arria 10.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com --- arch/arm/mach-socfpga/include/mach/sdram.h | 2 + arch/arm/mach-socfpga/include/mach/sdram_arria10.h | 2 + drivers/ddr/altera/Makefile | 1 + drivers/ddr/altera/sdram_arria10.c | 737 +++++++++++++++++++++ 4 files changed, 742 insertions(+) create mode 100644 drivers/ddr/altera/sdram_arria10.c
diff --git a/arch/arm/mach-socfpga/include/mach/sdram.h b/arch/arm/mach-socfpga/include/mach/sdram.h index 137e073..33f830b 100644 --- a/arch/arm/mach-socfpga/include/mach/sdram.h +++ b/arch/arm/mach-socfpga/include/mach/sdram.h @@ -10,6 +10,8 @@
#if defined(CONFIG_TARGET_SOCFPGA_GEN5) #include <asm/arch/sdram_gen5.h> +#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10) +#include <asm/arch/sdram_arria10.h> #endif
#endif diff --git a/arch/arm/mach-socfpga/include/mach/sdram_arria10.h b/arch/arm/mach-socfpga/include/mach/sdram_arria10.h index 1d7b7c1..e7a2503 100644 --- a/arch/arm/mach-socfpga/include/mach/sdram_arria10.h +++ b/arch/arm/mach-socfpga/include/mach/sdram_arria10.h @@ -8,6 +8,7 @@ #define _SOCFPGA_SDRAM_ARRIA10_H_
#ifndef __ASSEMBLY__ +int ddr_calibration_sequence(void);
struct socfpga_ecc_hmc { u32 ip_rev_id; @@ -204,6 +205,7 @@ struct socfpga_io48_mmr { u32 niosreserve1; u32 niosreserve2; }; + #endif /*__ASSEMBLY__*/
#define IO48_MMR_CTRLCFG0_DB2_BURST_LENGTH_MASK 0x1F000000 diff --git a/drivers/ddr/altera/Makefile b/drivers/ddr/altera/Makefile index ac4ab85..02f8b7c 100644 --- a/drivers/ddr/altera/Makefile +++ b/drivers/ddr/altera/Makefile @@ -10,4 +10,5 @@
ifdef CONFIG_ALTERA_SDRAM obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += sdram_gen5.o sequencer.o +obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += sdram_arria10.o endif diff --git a/drivers/ddr/altera/sdram_arria10.c b/drivers/ddr/altera/sdram_arria10.c new file mode 100644 index 0000000..e60a724 --- /dev/null +++ b/drivers/ddr/altera/sdram_arria10.c @@ -0,0 +1,737 @@ +/* + * Copyright (C) 2017 Intel Corporation <www.intel.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <errno.h> +#include <fdtdec.h> +#include <malloc.h> +#include <wait_bit.h> +#include <watchdog.h> +#include <asm/io.h> +#include <asm/arch/fpga_manager.h> +#include <asm/arch/misc.h> +#include <asm/arch/reset_manager.h> +#include <asm/arch/sdram.h> +#include <linux/kernel.h> + +DECLARE_GLOBAL_DATA_PTR; + +static void sdram_mmr_init(void); +static u64 sdram_size_calc(void); + +/* FAWBANK - Number of Bank of a given device involved in the FAW period. */ +#define ARRIA10_SDR_ACTIVATE_FAWBANK (0x1) + +#define ARRIA_DDR_CONFIG(A, B, C, R) \ + (((A) << 24) | ((B) << 16) | ((C) << 8) | (R)) +#define DDR_CONFIG_ELEMENTS ARRAY_SIZE(ddr_config) +#define DDR_REG_SEQ2CORE 0xFFD0507C +#define DDR_REG_CORE2SEQ 0xFFD05078 +#define DDR_READ_LATENCY_DELAY 40 +#define DDR_SIZE_2GB_HEX 0x80000000 +#define DDR_MAX_TRIES 0x00100000 + +#define IO48_MMR_DRAMSTS 0xFFCFA0EC +#define IO48_MMR_NIOS2_RESERVE0 0xFFCFA110 +#define IO48_MMR_NIOS2_RESERVE1 0xFFCFA114 +#define IO48_MMR_NIOS2_RESERVE2 0xFFCFA118 + +#define SEQ2CORE_MASK 0xF +#define CORE2SEQ_INT_REQ 0xF +#define SEQ2CORE_INT_RESP_BIT 3 + +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_noc_fw_ddr_mpu_fpga2sdram + *socfpga_noc_fw_ddr_mpu_fpga2sdram_base = + (void *)SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS; +static const struct socfpga_noc_fw_ddr_l3 *socfpga_noc_fw_ddr_l3_base = + (void *)SOCFPGA_SDR_FIREWALL_L3_ADDRESS; +static const struct socfpga_io48_mmr *socfpga_io48_mmr_base = + (void *)SOCFPGA_HMC_MMR_IO48_ADDRESS; + +/* The following are the supported configurations */ +static u32 ddr_config[] = { + /* Chip - Row - Bank - Column Style */ + /* All Types */ + ARRIA_DDR_CONFIG(0, 3, 10, 12), + ARRIA_DDR_CONFIG(0, 3, 10, 13), + ARRIA_DDR_CONFIG(0, 3, 10, 14), + ARRIA_DDR_CONFIG(0, 3, 10, 15), + ARRIA_DDR_CONFIG(0, 3, 10, 16), + ARRIA_DDR_CONFIG(0, 3, 10, 17), + /* LPDDR x16 */ + ARRIA_DDR_CONFIG(0, 3, 11, 14), + ARRIA_DDR_CONFIG(0, 3, 11, 15), + ARRIA_DDR_CONFIG(0, 3, 11, 16), + ARRIA_DDR_CONFIG(0, 3, 12, 15), + /* DDR4 Only */ + ARRIA_DDR_CONFIG(0, 4, 10, 14), + ARRIA_DDR_CONFIG(0, 4, 10, 15), + ARRIA_DDR_CONFIG(0, 4, 10, 16), + ARRIA_DDR_CONFIG(0, 4, 10, 17), /* 14 */ + /* Chip - Bank - Row - Column Style */ + ARRIA_DDR_CONFIG(1, 3, 10, 12), + ARRIA_DDR_CONFIG(1, 3, 10, 13), + ARRIA_DDR_CONFIG(1, 3, 10, 14), + ARRIA_DDR_CONFIG(1, 3, 10, 15), + ARRIA_DDR_CONFIG(1, 3, 10, 16), + ARRIA_DDR_CONFIG(1, 3, 10, 17), + ARRIA_DDR_CONFIG(1, 3, 11, 14), + ARRIA_DDR_CONFIG(1, 3, 11, 15), + ARRIA_DDR_CONFIG(1, 3, 11, 16), + ARRIA_DDR_CONFIG(1, 3, 12, 15), + /* DDR4 Only */ + ARRIA_DDR_CONFIG(1, 4, 10, 14), + ARRIA_DDR_CONFIG(1, 4, 10, 15), + ARRIA_DDR_CONFIG(1, 4, 10, 16), + ARRIA_DDR_CONFIG(1, 4, 10, 17), +}; + +static 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; +} + +/* Check whether SDRAM is successfully Calibrated */ +static int is_sdram_cal_success(void) +{ + return readl(&socfpga_ecc_hmc_base->ddrcalstat); +} + +static unsigned char ddr_get_bit(u32 ereg, unsigned char bit) +{ + u32 reg = readl(ereg); + + return (reg & BIT(bit)) ? 1 : 0; +} + +static unsigned char ddr_wait_bit(u32 ereg, u32 bit, + u32 expected, u32 timeout_usec) +{ + u32 tmr; + + for (tmr = 0; tmr < timeout_usec; tmr += 100) { + udelay(100); + WATCHDOG_RESET(); + if (ddr_get_bit(ereg, bit) == expected) + return 0; + } + + return 1; +} + +static int emif_clear(void) +{ + u32 i = DDR_MAX_TRIES; + u8 ret = 0; + + writel(0, DDR_REG_CORE2SEQ); + + do { + ret = !wait_for_bit(__func__, (u32 *)DDR_REG_SEQ2CORE, + SEQ2CORE_MASK, 1, 50, 0); + } while (ret && (--i > 0)); + + return !i; +} + +static int emif_reset(void) +{ + u32 c2s, s2c; + + c2s = readl(DDR_REG_CORE2SEQ); + s2c = readl(DDR_REG_SEQ2CORE); + + debug("c2s=%08x s2c=%08x nr0=%08x nr1=%08x nr2=%08x dst=%08x\n", + c2s, s2c, readl(IO48_MMR_NIOS2_RESERVE0), + readl(IO48_MMR_NIOS2_RESERVE1), + readl(IO48_MMR_NIOS2_RESERVE2), + readl(IO48_MMR_DRAMSTS)); + + if ((s2c & SEQ2CORE_MASK) && emif_clear()) { + debug("failed emif_clear()\n"); + return -EPERM; + } + + writel(CORE2SEQ_INT_REQ, DDR_REG_CORE2SEQ); + + if (ddr_wait_bit(DDR_REG_SEQ2CORE, SEQ2CORE_INT_RESP_BIT, 0, 1000000)) { + debug("emif_reset failed to see interrupt acknowledge\n"); + return -EPERM; + } else { + debug("emif_reset interrupt acknowledged\n"); + } + + if (emif_clear()) { + debug("emif_clear() failed\n"); + return -EPERM; + } + + debug("emif_reset interrupt cleared\n"); + + debug("nr0=%08x nr1=%08x nr2=%08x\n", + readl(IO48_MMR_NIOS2_RESERVE0), + readl(IO48_MMR_NIOS2_RESERVE1), + readl(IO48_MMR_NIOS2_RESERVE2)); + + return 0; +} + +static int ddr_setup(void) +{ + int i, j, ddr_setup_complete = 0; + + /* Try 3 times to do a calibration */ + for (i = 0; (i < 3) && !ddr_setup_complete; i++) { + WATCHDOG_RESET(); + + /* A delay to wait for calibration bit to set */ + for (j = 0; (j < 10) && !ddr_setup_complete; j++) { + mdelay(500); + ddr_setup_complete = is_sdram_cal_success(); + } + + if (!ddr_setup_complete) + if (emif_reset()) + puts("Error: Failed to reset EMIF\n"); + } + + /* After 3 times trying calibration */ + if (!ddr_setup_complete) { + puts("Error: Could Not Calibrate SDRAM\n"); + return -EPERM; + } + + return 0; +} + +/* Function to startup the SDRAM*/ +static int sdram_startup(void) +{ + /* Release NOC ddr scheduler from reset */ + socfpga_reset_deassert_noc_ddr_scheduler(); + + /* Bringup the DDR (calibration and configuration) */ + return ddr_setup(); +} + +static u64 sdram_size_calc(void) +{ + u32 dramaddrw = readl(&socfpga_io48_mmr_base->dramaddrw); + + u64 size = BIT(((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_CS_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_CS_ADDR_WIDTH_SHIFT) + + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_SHIFT) + + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_SHIFT) + + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_SHIFT) + + (dramaddrw & IO48_MMR_DRAMADDRW_CFG_COL_ADDR_WIDTH_MASK)); + + size *= (2 << (readl(&socfpga_ecc_hmc_base->ddrioctrl) & + ALT_ECC_HMC_OCP_DDRIOCTRL_IO_SIZE_MSK)); + + debug("SDRAM size=%llu", size); + + return size; +} + +/* Function to initialize SDRAM MMR and NOC DDR scheduler*/ +static void sdram_mmr_init(void) +{ + u32 update_value, io48_value; + u32 ctrlcfg0 = readl(&socfpga_io48_mmr_base->ctrlcfg0); + u32 ctrlcfg1 = readl(&socfpga_io48_mmr_base->ctrlcfg1); + u32 dramaddrw = readl(&socfpga_io48_mmr_base->dramaddrw); + u32 caltim0 = readl(&socfpga_io48_mmr_base->caltiming0); + u32 caltim1 = readl(&socfpga_io48_mmr_base->caltiming1); + u32 caltim2 = readl(&socfpga_io48_mmr_base->caltiming2); + u32 caltim3 = readl(&socfpga_io48_mmr_base->caltiming3); + u32 caltim4 = readl(&socfpga_io48_mmr_base->caltiming4); + u32 caltim9 = readl(&socfpga_io48_mmr_base->caltiming9); + u32 ddrioctl; + + /* + * Configure the DDR IO size [0xFFCFB008] + * niosreserve0: Used to indicate DDR width & + * bit[7:0] = Number of data bits (0x20 for 32bit) + * 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 # + */ + if ((socfpga_io48_mmr_base->niosreserve1 >> 6) & 0x1FF) { + 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); + + /* Set the DDR Configuration [0xFFD12400] */ + io48_value = ARRIA_DDR_CONFIG( + ((ctrlcfg1 & + IO48_MMR_CTRLCFG1_ADDR_ORDER_MASK) >> + IO48_MMR_CTRLCFG1_ADDR_ORDER_SHIFT), + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_SHIFT) + + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_SHIFT), + (dramaddrw & + IO48_MMR_DRAMADDRW_CFG_COL_ADDR_WIDTH_MASK), + ((dramaddrw & + IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_MASK) >> + IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_SHIFT)); + + update_value = match_ddr_conf(io48_value); + if (update_value) + writel(update_value, + &socfpga_noc_ddr_scheduler_base->ddr_t_main_scheduler_ddrconf); + + /* + * Configure DDR timing [0xFFD1240C] + * 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 + */ + u32 ctrlcfg0_cfg_ctrl_burst_len = + (ctrlcfg0 & IO48_MMR_CTRLCFG0_CTRL_BURST_LENGTH_MASK) >> + IO48_MMR_CTRLCFG0_CTRL_BURST_LENGTH_SHIFT; + + u32 caltim0_cfg_act_to_rdwr = caltim0 & + IO48_MMR_CALTIMING0_CFG_ACT_TO_RDWR_MASK; + + u32 caltim0_cfg_act_to_act = + (caltim0 & IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_MASK) >> + IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_SHIFT; + + u32 caltim0_cfg_act_to_act_db = + (caltim0 & + IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BANK_MASK) >> + IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BANK_SHIFT; + + u32 caltim1_cfg_rd_to_wr = + (caltim1 & IO48_MMR_CALTIMING1_CFG_RD_TO_WR_MASK) >> + IO48_MMR_CALTIMING1_CFG_RD_TO_WR_SHIFT; + + u32 caltim1_cfg_rd_to_rd_dc = + (caltim1 & IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DC_MASK) >> + IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DC_SHIFT; + + u32 caltim1_cfg_rd_to_wr_dc = + (caltim1 & IO48_MMR_CALTIMING1_CFG_RD_TO_WR_DIFF_CHIP_MASK) >> + IO48_MMR_CALTIMING1_CFG_RD_TO_WR_DIFF_CHIP_SHIFT; + + u32 caltim2_cfg_rd_to_pch = + (caltim2 & IO48_MMR_CALTIMING2_CFG_RD_TO_PCH_MASK) >> + IO48_MMR_CALTIMING2_CFG_RD_TO_PCH_SHIFT; + + u32 caltim3_cfg_wr_to_rd = + (caltim3 & IO48_MMR_CALTIMING3_CFG_WR_TO_RD_MASK) >> + IO48_MMR_CALTIMING3_CFG_WR_TO_RD_SHIFT; + + u32 caltim3_cfg_wr_to_rd_dc = + (caltim3 & IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_CHIP_MASK) >> + IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_CHIP_SHIFT; + + u32 caltim4_cfg_pch_to_valid = + (caltim4 & IO48_MMR_CALTIMING4_CFG_PCH_TO_VALID_MASK) >> + IO48_MMR_CALTIMING4_CFG_PCH_TO_VALID_SHIFT; + + u32 caltim9_cfg_4_act_to_act = caltim9 & + IO48_MMR_CALTIMING9_CFG_WR_4_ACT_TO_ACT_MASK; + + 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 = ((((socfpga_io48_mmr_base->dramtiming0 & + ALT_IO48_DRAMTIME_MEM_READ_LATENCY_MASK) + 2 + 15 + + (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 << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_ACTTOACT_LSB) | + (update_value << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_RDTOMISS_LSB) | + (io48_value << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_WRTOMISS_LSB) | + ((ctrlcfg0_cfg_ctrl_burst_len >> 2) << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_BURSTLEN_LSB) | + (caltim1_cfg_rd_to_wr << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_RDTOWR_LSB) | + (caltim3_cfg_wr_to_rd << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_WRTORD_LSB) | + (((ddrioctl == 1) ? 1 : 0) << + ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_BWRATIO_LSB)), + &socfpga_noc_ddr_scheduler_base-> + ddr_t_main_scheduler_ddrtiming); + + /* Configure DDR mode [0xFFD12410] [precharge = 0] */ + writel(((ddrioctl ? 0 : 1) << + ALT_NOC_MPU_DDR_T_SCHED_DDRMOD_BWRATIOEXTENDED_LSB), + &socfpga_noc_ddr_scheduler_base->ddr_t_main_scheduler_ddrmode); + + /* Configure the read latency [0xFFD12414] */ + writel(((socfpga_io48_mmr_base->dramtiming0 & + ALT_IO48_DRAMTIME_MEM_READ_LATENCY_MASK) >> 1) + + DDR_READ_LATENCY_DELAY, + &socfpga_noc_ddr_scheduler_base-> + ddr_t_main_scheduler_readlatency); + + /* + * Configuring timing values concerning activate commands + * [0xFFD12438] [FAWBANK alway 1 because always 4 bank DDR] + */ + writel(((caltim0_cfg_act_to_act_db << + ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_RRD_LSB) | + (caltim9_cfg_4_act_to_act << + ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_FAW_LSB) | + (ARRIA10_SDR_ACTIVATE_FAWBANK << + ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_FAWBANK_LSB)), + &socfpga_noc_ddr_scheduler_base->ddr_t_main_scheduler_activate); + + /* + * Configuring timing values concerning device to device data bus + * ownership change [0xFFD1243C] + */ + writel(((caltim1_cfg_rd_to_rd_dc << + ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSRDTORD_LSB) | + (caltim1_cfg_rd_to_wr_dc << + ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSRDTOWR_LSB) | + (caltim3_cfg_wr_to_rd_dc << + ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSWRTORD_LSB)), + &socfpga_noc_ddr_scheduler_base->ddr_t_main_scheduler_devtodev); + + /* Enable or disable the SDRAM ECC */ + if (ctrlcfg1 & IO48_MMR_CTRLCFG1_CTRL_ENABLE_ECC) { + setbits_le32(&socfpga_ecc_hmc_base->eccctrl, + (ALT_ECC_HMC_OCP_ECCCTL_AWB_CNT_RST_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL_CNT_RST_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL_ECC_EN_SET_MSK)); + clrbits_le32(&socfpga_ecc_hmc_base->eccctrl, + (ALT_ECC_HMC_OCP_ECCCTL_AWB_CNT_RST_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL_CNT_RST_SET_MSK)); + setbits_le32(&socfpga_ecc_hmc_base->eccctrl2, + (ALT_ECC_HMC_OCP_ECCCTL2_RMW_EN_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL2_AWB_EN_SET_MSK)); + } else { + clrbits_le32(&socfpga_ecc_hmc_base->eccctrl, + (ALT_ECC_HMC_OCP_ECCCTL_AWB_CNT_RST_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL_CNT_RST_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL_ECC_EN_SET_MSK)); + clrbits_le32(&socfpga_ecc_hmc_base->eccctrl2, + (ALT_ECC_HMC_OCP_ECCCTL2_RMW_EN_SET_MSK | + ALT_ECC_HMC_OCP_ECCCTL2_AWB_EN_SET_MSK)); + } +} + +struct firewall_entry { + const char *prop_name; + const u32 cfg_addr; + const u32 en_addr; + const u32 en_bit; +}; +#define FW_MPU_FPGA_ADDRESS \ + ((const struct socfpga_noc_fw_ddr_mpu_fpga2sdram *)\ + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS) + +#define SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(ADDR) \ + (SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS + \ + offsetof(struct socfpga_noc_fw_ddr_mpu_fpga2sdram, ADDR)) + +#define SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(ADDR) \ + (SOCFPGA_SDR_FIREWALL_L3_ADDRESS + \ + offsetof(struct socfpga_noc_fw_ddr_l3, ADDR)) + +const struct firewall_entry firewall_table[] = { + { + "altr,mpu0", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(mpuregion0addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_MPUREG0EN_SET_MSK + }, + { + "altr,mpu1", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS + + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(mpuregion1addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_MPUREG1EN_SET_MSK + }, + { + "altr,mpu2", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(mpuregion2addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_MPUREG2EN_SET_MSK + }, + { + "altr,mpu3", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(mpuregion3addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_MPUREG3EN_SET_MSK + }, + { + "altr,l3-0", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion0addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG0EN_SET_MSK + }, + { + "altr,l3-1", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion1addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG1EN_SET_MSK + }, + { + "altr,l3-2", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion2addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG2EN_SET_MSK + }, + { + "altr,l3-3", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion3addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG3EN_SET_MSK + }, + { + "altr,l3-4", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion4addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG4EN_SET_MSK + }, + { + "altr,l3-5", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion5addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG5EN_SET_MSK + }, + { + "altr,l3-6", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion6addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG6EN_SET_MSK + }, + { + "altr,l3-7", + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(hpsregion7addr), + SOCFPGA_SDR_FIREWALL_L3_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_HPSREG7EN_SET_MSK + }, + { + "altr,fpga2sdram0-0", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram0region0addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG0EN_SET_MSK + }, + { + "altr,fpga2sdram0-1", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram0region1addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG1EN_SET_MSK + }, + { + "altr,fpga2sdram0-2", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram0region2addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG2EN_SET_MSK + }, + { + "altr,fpga2sdram0-3", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram0region3addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG3EN_SET_MSK + }, + { + "altr,fpga2sdram1-0", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram1region0addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG0EN_SET_MSK + }, + { + "altr,fpga2sdram1-1", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram1region1addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG1EN_SET_MSK + }, + { + "altr,fpga2sdram1-2", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram1region2addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG2EN_SET_MSK + }, + { + "altr,fpga2sdram1-3", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram1region3addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG3EN_SET_MSK + }, + { + "altr,fpga2sdram2-0", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram2region0addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG0EN_SET_MSK + }, + { + "altr,fpga2sdram2-1", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram2region1addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG1EN_SET_MSK + }, + { + "altr,fpga2sdram2-2", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram2region2addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG2EN_SET_MSK + }, + { + "altr,fpga2sdram2-3", + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET + (fpga2sdram2region3addr), + SOCFPGA_SDR_FIREWALL_MPU_FPGA_ADDRESS_OFFSET(enable), + ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG3EN_SET_MSK + }, + +}; + +static int of_sdram_firewall_setup(const void *blob) +{ + int child, i, node; + u32 start_end[2]; + + node = fdtdec_next_compatible(blob, 0, COMPAT_ALTERA_SOCFPGA_NOC); + if (node < 0) + return -ENXIO; + + child = fdt_first_subnode(blob, node); + if (child < 0) + return -ENXIO; + + /* set to default state */ + writel(0, &socfpga_noc_fw_ddr_mpu_fpga2sdram_base->enable); + writel(0, &socfpga_noc_fw_ddr_l3_base->enable); + + for (i = 0; i < ARRAY_SIZE(firewall_table); i++) { + if (!fdtdec_get_int_array(blob, child, + firewall_table[i].prop_name, + start_end, 2)) { + writel((start_end[0] & ALT_NOC_FW_DDR_ADDR_MASK) | + (start_end[1] << ALT_NOC_FW_DDR_END_ADDR_LSB), + firewall_table[i].cfg_addr); + setbits_le32(firewall_table[i].en_addr, + firewall_table[i].en_bit); + } + } + + return 0; +} + +int ddr_calibration_sequence(void) +{ + WATCHDOG_RESET(); + + /* Check to see if SDRAM cal was success */ + if (sdram_startup()) { + puts("DDRCAL: Failed\n"); + return -EPERM; + } + + puts("DDRCAL: Success\n"); + + WATCHDOG_RESET(); + + /* initialize the MMR register */ + sdram_mmr_init(); + + /* assigning the SDRAM size */ + u64 size = sdram_size_calc(); + + /* + * If size is less than zero, this is invalid/weird value from + * calculation, use default Config size. + * Up to 2GB is supported, 2GB would be used if more than that. + */ + if (size <= 0) { + gd->ram_size = PHYS_SDRAM_1_SIZE; + } + else if (DDR_SIZE_2GB_HEX <= size) { + gd->ram_size = DDR_SIZE_2GB_HEX; + } + else { + gd->ram_size = (u32)size; + } + + /* setup the dram info within bd */ + dram_init_banksize(); + + if (of_sdram_firewall_setup(gd->fdt_blob)) + puts("FW: Error Configuring Firewall\n"); + + return 0; +} + +void dram_bank_mmu_setup(int bank) +{ + bd_t *bd = gd->bd; + int i; + + debug("%s: bank: %d\n", __func__, bank); + for (i = bd->bi_dram[bank].start >> 20; + i < (bd->bi_dram[bank].start + bd->bi_dram[bank].size) >> 20; + i++) { +#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH) + set_section_dcache(i, DCACHE_WRITETHROUGH); +#else + set_section_dcache(i, DCACHE_WRITEBACK); +#endif + } + + /* same as above but just that we would want cacheable for ocram too */ + i = CONFIG_SYS_INIT_RAM_ADDR >> 20; +#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH) + set_section_dcache(i, DCACHE_WRITETHROUGH); +#else + set_section_dcache(i, DCACHE_WRITEBACK); +#endif +}