arm: socfpga: Add sdram header file for Arria 10

Add sdram header file for Arria 10. Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2024-11-10 23:24:38 +00:00 · 2017-04-26 02:44:41 +08:00 · 2017-04-26 02:44:41 +08:00 · c887d48017
commit c887d48017
parent 86f032e630
1 changed files with 380 additions and 0 deletions
--- a/arch/arm/mach-socfpga/include/mach/sdram_arria10.h
+++ b/arch/arm/mach-socfpga/include/mach/sdram_arria10.h
@ -0,0 +1,380 @@
+/*
+ * Copyright (C) 2015-2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _SOCFPGA_SDRAM_ARRIA10_H_
+#define _SOCFPGA_SDRAM_ARRIA10_H_
+
+#ifndef __ASSEMBLY__
+
+struct socfpga_ecc_hmc {
+	u32 ip_rev_id;
+	u32 _pad_0x4_0x7;
+	u32 ddrioctrl;
+	u32 ddrcalstat;
+	u32 mpr_0beat1;
+	u32 mpr_1beat1;
+	u32 mpr_2beat1;
+	u32 mpr_3beat1;
+	u32 mpr_4beat1;
+	u32 mpr_5beat1;
+	u32 mpr_6beat1;
+	u32 mpr_7beat1;
+	u32 mpr_8beat1;
+	u32 mpr_0beat2;
+	u32 mpr_1beat2;
+	u32 mpr_2beat2;
+	u32 mpr_3beat2;
+	u32 mpr_4beat2;
+	u32 mpr_5beat2;
+	u32 mpr_6beat2;
+	u32 mpr_7beat2;
+	u32 mpr_8beat2;
+	u32 _pad_0x58_0x5f[2];
+	u32 auto_precharge;
+	u32 _pad_0x64_0xff[39];
+	u32 eccctrl;
+	u32 eccctrl2;
+	u32 _pad_0x108_0x10f[2];
+	u32 errinten;
+	u32 errintens;
+	u32 errintenr;
+	u32 intmode;
+	u32 intstat;
+	u32 diaginttest;
+	u32 modstat;
+	u32 derraddra;
+	u32 serraddra;
+	u32 _pad_0x134_0x137;
+	u32 autowb_corraddr;
+	u32 serrcntreg;
+	u32 autowb_drop_cntreg;
+	u32 _pad_0x144_0x147;
+	u32 ecc_reg2wreccdatabus;
+	u32 ecc_rdeccdata2regbus;
+	u32 ecc_reg2rdeccdatabus;
+	u32 _pad_0x154_0x15f[3];
+	u32 ecc_diagon;
+	u32 ecc_decstat;
+	u32 _pad_0x168_0x16f[2];
+	u32 ecc_errgenaddr_0;
+	u32 ecc_errgenaddr_1;
+	u32 ecc_errgenaddr_2;
+	u32 ecc_errgenaddr_3;
+};
+
+struct socfpga_noc_ddr_scheduler {
+	u32 ddr_t_main_scheduler_id_coreid;
+	u32 ddr_t_main_scheduler_id_revisionid;
+	u32 ddr_t_main_scheduler_ddrconf;
+	u32 ddr_t_main_scheduler_ddrtiming;
+	u32 ddr_t_main_scheduler_ddrmode;
+	u32 ddr_t_main_scheduler_readlatency;
+	u32 _pad_0x20_0x34[8];
+	u32 ddr_t_main_scheduler_activate;
+	u32 ddr_t_main_scheduler_devtodev;
+};
+
+/*
+ * OCRAM firewall
+ */
+struct socfpga_noc_fw_ocram {
+	u32 enable;
+	u32 enable_set;
+	u32 enable_clear;
+	u32 region0;
+	u32 region1;
+	u32 region2;
+	u32 region3;
+	u32 region4;
+	u32 region5;
+};
+
+/* for master such as MPU and FPGA */
+struct socfpga_noc_fw_ddr_mpu_fpga2sdram {
+	u32 enable;
+	u32 enable_set;
+	u32 enable_clear;
+	u32 _pad_0xc_0xf;
+	u32 mpuregion0addr;
+	u32 mpuregion1addr;
+	u32 mpuregion2addr;
+	u32 mpuregion3addr;
+	u32 fpga2sdram0region0addr;
+	u32 fpga2sdram0region1addr;
+	u32 fpga2sdram0region2addr;
+	u32 fpga2sdram0region3addr;
+	u32 fpga2sdram1region0addr;
+	u32 fpga2sdram1region1addr;
+	u32 fpga2sdram1region2addr;
+	u32 fpga2sdram1region3addr;
+	u32 fpga2sdram2region0addr;
+	u32 fpga2sdram2region1addr;
+	u32 fpga2sdram2region2addr;
+	u32 fpga2sdram2region3addr;
+};
+
+/* for L3 master */
+struct socfpga_noc_fw_ddr_l3 {
+	u32 enable;
+	u32 enable_set;
+	u32 enable_clear;
+	u32 hpsregion0addr;
+	u32 hpsregion1addr;
+	u32 hpsregion2addr;
+	u32 hpsregion3addr;
+	u32 hpsregion4addr;
+	u32 hpsregion5addr;
+	u32 hpsregion6addr;
+	u32 hpsregion7addr;
+};
+
+struct socfpga_io48_mmr {
+	u32 dbgcfg0;
+	u32 dbgcfg1;
+	u32 dbgcfg2;
+	u32 dbgcfg3;
+	u32 dbgcfg4;
+	u32 dbgcfg5;
+	u32 dbgcfg6;
+	u32 reserve0;
+	u32 reserve1;
+	u32 reserve2;
+	u32 ctrlcfg0;
+	u32 ctrlcfg1;
+	u32 ctrlcfg2;
+	u32 ctrlcfg3;
+	u32 ctrlcfg4;
+	u32 ctrlcfg5;
+	u32 ctrlcfg6;
+	u32 ctrlcfg7;
+	u32 ctrlcfg8;
+	u32 ctrlcfg9;
+	u32 dramtiming0;
+	u32 dramodt0;
+	u32 dramodt1;
+	u32 sbcfg0;
+	u32 sbcfg1;
+	u32 sbcfg2;
+	u32 sbcfg3;
+	u32 sbcfg4;
+	u32 sbcfg5;
+	u32 sbcfg6;
+	u32 sbcfg7;
+	u32 caltiming0;
+	u32 caltiming1;
+	u32 caltiming2;
+	u32 caltiming3;
+	u32 caltiming4;
+	u32 caltiming5;
+	u32 caltiming6;
+	u32 caltiming7;
+	u32 caltiming8;
+	u32 caltiming9;
+	u32 caltiming10;
+	u32 dramaddrw;
+	u32 sideband0;
+	u32 sideband1;
+	u32 sideband2;
+	u32 sideband3;
+	u32 sideband4;
+	u32 sideband5;
+	u32 sideband6;
+	u32 sideband7;
+	u32 sideband8;
+	u32 sideband9;
+	u32 sideband10;
+	u32 sideband11;
+	u32 sideband12;
+	u32 sideband13;
+	u32 sideband14;
+	u32 sideband15;
+	u32 dramsts;
+	u32 dbgdone;
+	u32 dbgsignals;
+	u32 dbgreset;
+	u32 dbgmatch;
+	u32 counter0mask;
+	u32 counter1mask;
+	u32 counter0match;
+	u32 counter1match;
+	u32 niosreserve0;
+	u32 niosreserve1;
+	u32 niosreserve2;
+};
+#endif /*__ASSEMBLY__*/
+
+#define IO48_MMR_CTRLCFG0_DB2_BURST_LENGTH_MASK		0x1F000000
+#define IO48_MMR_CTRLCFG0_DB2_BURST_LENGTH_SHIFT	24
+#define IO48_MMR_CTRLCFG0_DB1_BURST_LENGTH_MASK		0x00F80000
+#define IO48_MMR_CTRLCFG0_DB1_BURST_LENGTH_SHIFT	19
+#define IO48_MMR_CTRLCFG0_DB0_BURST_LENGTH_MASK		0x0007C000
+#define IO48_MMR_CTRLCFG0_DB0_BURST_LENGTH_SHIFT	14
+#define IO48_MMR_CTRLCFG0_CTRL_BURST_LENGTH_MASK	0x00003E00
+#define IO48_MMR_CTRLCFG0_CTRL_BURST_LENGTH_SHIFT	9
+#define IO48_MMR_CTRLCFG0_AC_POS_MASK			0x00000180
+#define IO48_MMR_CTRLCFG0_AC_POS_SHIFT			7
+#define IO48_MMR_CTRLCFG0_DIMM_TYPE_MASK		0x00000070
+#define IO48_MMR_CTRLCFG0_DIM_TYPE_SHIFT		4
+#define IO48_MMR_CTRLCFG0_MEM_TYPE_MASK			0x0000000F
+#define IO48_MMR_CTRLCFG0_MEM_TYPE_SHIFT		0
+
+#define IO48_MMR_CTRLCFG1_DBC3_ENABLE_DM		BIT(30)
+#define IO48_MMR_CTRLCFG1_DBC2_ENABLE_DM		BIT(29)
+#define IO48_MMR_CTRLCFG1_DBC1_ENABLE_DM		BIT(28)
+#define IO48_MMR_CTRLCFG1_DBC0_ENABLE_DM		BIT(27)
+#define IO48_MMR_CTRLCFG1_CTRL_ENABLE_DM		BIT(26)
+#define IO48_MMR_CTRLCFG1_DQSTRK_EN			BIT(25)
+#define IO48_MMR_CTRLCFG1_STARVE_LIMIT_MASK		0x01F80000
+#define IO48_MMR_CTRLCFG1_STARVE_LIMIT_SHIFT		19
+#define IO48_MMR_CTRLCFG1_REORDER_READ			BIT(18)
+#define IO48_MMR_CTRLCFG1_DBC3_REORDER_RDATA		BIT(17)
+#define IO48_MMR_CTRLCFG1_DBC2_REORDER_RDATA		BIT(16)
+#define IO48_MMR_CTRLCFG1_DBC1_REORDER_RDATA		BIT(15)
+#define IO48_MMR_CTRLCFG1_DBC0_REORDER_RDATA		BIT(14)
+#define IO48_MMR_CTRLCFG1_CTRL_REORDER_RDATA		BIT(13)
+#define IO48_MMR_CTRLCFG1_REORDER_DATA			BIT(12)
+#define IO48_MMR_CTRLCFG1_DBC3_ENABLE_ECC		BIT(11)
+#define IO48_MMR_CTRLCFG1_DBC2_ENABLE_ECC		BIT(10)
+#define IO48_MMR_CTRLCFG1_DBC1_ENABLE_ECC		BIT(9)
+#define IO48_MMR_CTRLCFG1_DBC0_ENABLE_ECC		BIT(8)
+#define IO48_MMR_CTRLCFG1_CTRL_ENABLE_ECC		BIT(7)
+#define IO48_MMR_CTRLCFG1_ADDR_ORDER_MASK		0x00000060
+#define IO48_MMR_CTRLCFG1_ADDR_ORDER_SHIFT		5
+#define IO48_MMR_CTRLCFG1_DBC3_BURST_LENGTH_MASK	0x0000001F
+#define IO48_MMR_CTRLCFG1_DBC3_BURST_LENGTH_SHIFT	0
+
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BG_MASK		0x3F000000
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BG_SHIFT	24
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BANK_MASK	0x00FC0000
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_DIFF_BANK_SHIFT	18
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_MASK			0x0003F000
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_ACT_SHIFT		12
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_PCH_MASK			0x00000FC0
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_PCH_SHIFT		6
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_RDWR_MASK		0x0000003F
+#define IO48_MMR_CALTIMING0_CFG_ACT_TO_RDWR_SHIFT		0
+
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_WR_DIFF_CHIP_MASK		0x3F000000
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_WR_DIFF_CHIP_SHIFT	24
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_WR_MASK			0x00FC0000
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_WR_SHIFT			18
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DB_MASK		0x0003F000
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DB_SHIFT		12
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DC_MASK		0x00000FC0
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_DC_SHIFT		6
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_MASK			0x0000003F
+#define IO48_MMR_CALTIMING1_CFG_RD_TO_RD_SHIFT			0
+
+#define IO48_MMR_CALTIMING2_CFG_WR_TO_WR_DIFF_CHIP_MASK		0x3F000000
+#define IO48_MMR_CALTIMING2_CFG_WR_TO_WR_DIFF_CHIP_SHIFT	24
+#define IO48_MMR_CALTIMING2_CFG_WR_TO_WR_MASK			0x00FC0000
+#define IO48_MMR_CALTIMING2_CFG_WR_TO_WR_SHIFT			18
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_AP_VALID_MASK		0x0003F000
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_AP_VALID_SHIFT		12
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_PCH_MASK			0x00000FC0
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_PCH_SHIFT			6
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_WR_DIFF_BG_MASK		0x0000003F
+#define IO48_MMR_CALTIMING2_CFG_RD_TO_WR_DIFF_BG_SHIFT		0
+
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_PCH_MASK			0x3F000000
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_PCH_SHIFT			24
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_BG_MASK		0x00FC0000
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_BG_SHIFT		18
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_CHIP_MASK		0x0003F000
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_DIFF_CHIP_SHIFT	12
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_MASK			0x00000FC0
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_RD_SHIFT			6
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_WR_DIFF_BG_MASK		0x0000003F
+#define IO48_MMR_CALTIMING3_CFG_WR_TO_WR_DIFF_BG_SHIFT		0
+
+#define IO48_MMR_CALTIMING4_CFG_PDN_TO_VALID_MASK		0xFC000000
+#define IO48_MMR_CALTIMING4_CFG_PDN_TO_VALID_SHIFT		26
+#define IO48_MMR_CALTIMING4_CFG_ARF_TO_VALID_MASK		0x03FC0000
+#define IO48_MMR_CALTIMING4_CFG_ARF_TO_VALID_SHIFT		18
+#define IO48_MMR_CALTIMING4_CFG_PCH_ALL_TO_VALID_MASK		0x0003F000
+#define IO48_MMR_CALTIMING4_CFG_PCH_ALL_TO_VALID_SHIFT		12
+#define IO48_MMR_CALTIMING4_CFG_PCH_TO_VALID_MASK		0x00000FC0
+#define IO48_MMR_CALTIMING4_CFG_PCH_TO_VALID_SHIFT		6
+#define IO48_MMR_CALTIMING4_CFG_WR_AP_TO_VALID_MASK		0x0000003F
+#define IO48_MMR_CALTIMING4_CFG_WR_AP_TO_VALID_SHIFT		0
+
+#define IO48_MMR_CALTIMING9_CFG_WR_4_ACT_TO_ACT_MASK		0x000000FF
+#define IO48_MMR_CALTIMING9_CFG_WR_4_ACT_TO_ACT_SHIFT		0
+
+#define IO48_MMR_DRAMADDRW_CFG_CS_ADDR_WIDTH_MASK		0x00070000
+#define IO48_MMR_DRAMADDRW_CFG_CS_ADDR_WIDTH_SHIFT		16
+#define IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_MASK	0x0000C000
+#define IO48_MMR_DRAMADDRW_CFG_BANK_GROUP_ADDR_WIDTH_SHIFT	14
+#define IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_MASK		0x00003C00
+#define IO48_MMR_DRAMADDRW_CFG_BANK_ADDR_WIDTH_SHIFT		10
+#define IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_MASK		0x000003E0
+#define IO48_MMR_DRAMADDRW_CFG_ROW_ADDR_WIDTH_SHIFT		5
+#define IO48_MMR_DRAMADDRW_CFG_COL_ADDR_WIDTH_MASK		0x0000001F
+#define IO48_MMR_DRAMADDRW_CFG_COL_ADDR_WIDTH_SHIFT		0
+
+#define ALT_ECC_HMC_OCP_DDRIOCTRL_IO_SIZE_MSK		0x00000003
+
+#define ALT_ECC_HMC_OCP_INTSTAT_SERRPENA_SET_MSK	BIT(0)
+#define ALT_ECC_HMC_OCP_INTSTAT_DERRPENA_SET_MSK	BIT(1)
+#define ALT_ECC_HMC_OCP_ERRINTEN_SERRINTEN_SET_MSK	BIT(0)
+#define ALT_ECC_HMC_OCP_ERRINTEN_DERRINTEN_SET_MSK	BIT(1)
+#define ALT_ECC_HMC_OCP_INTMOD_INTONCMP_SET_MSK		BIT(16)
+#define ALT_ECC_HMC_OCP_ECCCTL_AWB_CNT_RST_SET_MSK	BIT(16)
+#define ALT_ECC_HMC_OCP_ECCCTL_CNT_RST_SET_MSK		BIT(8)
+#define ALT_ECC_HMC_OCP_ECCCTL_ECC_EN_SET_MSK		BIT(0)
+#define ALT_ECC_HMC_OCP_ECCCTL2_RMW_EN_SET_MSK		BIT(8)
+#define ALT_ECC_HMC_OCP_ECCCTL2_AWB_EN_SET_MSK		BIT(0)
+
+#define ALT_ECC_HMC_OCP_SERRCNTREG_VALUE		8
+
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_ACTTOACT_LSB	0
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_RDTOMISS_LSB	6
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_WRTOMISS_LSB	12
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_BURSTLEN_LSB	18
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_RDTOWR_LSB	21
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_WRTORD_LSB	26
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRTIMING_BWRATIO_LSB	31
+
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRMOD_AUTOPRECHARGE_LSB	0
+#define ALT_NOC_MPU_DDR_T_SCHED_DDRMOD_BWRATIOEXTENDED_LSB	1
+
+#define ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_RRD_LSB	0
+#define ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_FAW_LSB	4
+#define ALT_NOC_MPU_DDR_T_SCHED_ACTIVATE_FAWBANK_LSB	10
+
+#define ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSRDTORD_LSB	0
+#define ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSRDTOWR_LSB	2
+#define ALT_NOC_MPU_DDR_T_SCHED_DEVTODEV_BUSWRTORD_LSB	4
+
+#define ALT_NOC_FW_DDR_END_ADDR_LSB	16
+#define ALT_NOC_FW_DDR_ADDR_MASK	0xFFFF
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG0EN_SET_MSK		BIT(0)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG1EN_SET_MSK		BIT(1)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG2EN_SET_MSK		BIT(2)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG3EN_SET_MSK		BIT(3)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG4EN_SET_MSK		BIT(4)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG5EN_SET_MSK		BIT(5)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG6EN_SET_MSK		BIT(6)
+#define ALT_NOC_FW_DDR_SCR_EN_HPSREG7EN_SET_MSK		BIT(7)
+#define ALT_NOC_FW_DDR_SCR_EN_MPUREG0EN_SET_MSK		BIT(0)
+#define ALT_NOC_FW_DDR_SCR_EN_MPUREG1EN_SET_MSK		BIT(1)
+#define ALT_NOC_FW_DDR_SCR_EN_MPUREG2EN_SET_MSK		BIT(2)
+#define ALT_NOC_FW_DDR_SCR_EN_MPUREG3EN_SET_MSK		BIT(3)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG0EN_SET_MSK	BIT(4)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG1EN_SET_MSK	BIT(5)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG2EN_SET_MSK	BIT(6)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR0REG3EN_SET_MSK	BIT(7)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG0EN_SET_MSK	BIT(8)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG1EN_SET_MSK	BIT(9)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG2EN_SET_MSK	BIT(10)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR1REG3EN_SET_MSK	BIT(11)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG0EN_SET_MSK	BIT(12)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG1EN_SET_MSK	BIT(13)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG2EN_SET_MSK	BIT(14)
+#define ALT_NOC_FW_DDR_SCR_EN_F2SDR2REG3EN_SET_MSK	BIT(15)
+
+#define ALT_IO48_DRAMTIME_MEM_READ_LATENCY_MASK		0x0000003F
+#endif /* _SOCFPGA_SDRAM_ARRIA10_H_ */