1 /*- 2 * Copyright (c) 2018 Rubicon Communications, LLC (Netgate) 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 /* 27 * Marvel Xenon SDHCI driver defines. 28 */ 29 30 #ifndef _SDHCI_XENON_H_ 31 #define _SDHCI_XENON_H_ 32 33 #define XENON_LOWEST_SDCLK_FREQ 100000 34 #define XENON_MMC_MAX_CLK 400000000 35 36 #define XENON_SYS_OP_CTRL 0x0108 37 #define XENON_AUTO_CLKGATE_DISABLE (1 << 20) 38 #define XENON_SDCLK_IDLEOFF_ENABLE_SHIFT 8 39 40 #define XENON_SYS_EXT_OP_CTRL 0x010C 41 #define XENON_MASK_CMD_CONFLICT_ERR (1 << 8) 42 43 #define XENON_SLOT_EMMC_CTRL 0x0130 44 #define XENON_ENABLE_DATA_STROBE (1 << 24) 45 #define XENON_ENABLE_RESP_STROBE (1 << 25) 46 47 /* Custom HS200 / HS400 Mode Select values in SDHCI_HOST_CONTROL2 register. */ 48 #define XENON_CTRL2_MMC_HS200 0x5 49 #define XENON_CTRL2_MMC_HS400 0x6 50 51 /* eMMC PHY */ 52 #define XENON_EMMC_PHY_REG_BASE 0x170 53 54 #define XENON_EMMC_PHY_TIMING_ADJUST XENON_EMMC_PHY_REG_BASE 55 #define XENON_SAMPL_INV_QSP_PHASE_SELECT (1 << 18) 56 #define XENON_TIMING_ADJUST_SDIO_MODE (1 << 28) 57 #define XENON_TIMING_ADJUST_SLOW_MODE (1 << 29) 58 #define XENON_PHY_INITIALIZATION (1U << 31) 59 #define XENON_WAIT_CYCLE_BEFORE_USING_MASK 0xF 60 #define XENON_WAIT_CYCLE_BEFORE_USING_SHIFT 12 61 #define XENON_FC_SYNC_EN_DURATION_MASK 0xF 62 #define XENON_FC_SYNC_EN_DURATION_SHIFT 8 63 #define XENON_FC_SYNC_RST_EN_DURATION_MASK 0xF 64 #define XENON_FC_SYNC_RST_EN_DURATION_SHIFT 4 65 #define XENON_FC_SYNC_RST_DURATION_MASK 0xF 66 #define XENON_FC_SYNC_RST_DURATION_SHIFT 0 67 68 #define XENON_EMMC_PHY_FUNC_CONTROL (XENON_EMMC_PHY_REG_BASE + 0x4) 69 #define XENON_DQ_ASYNC_MODE (1 << 4) 70 #define XENON_CMD_DDR_MODE (1 << 16) 71 #define XENON_DQ_DDR_MODE_SHIFT 8 72 #define XENON_DQ_DDR_MODE_MASK 0xFF 73 #define XENON_ASYNC_DDRMODE_MASK (1 << 23) 74 #define XENON_ASYNC_DDRMODE_SHIFT 23 75 76 #define XENON_EMMC_PHY_PAD_CONTROL (XENON_EMMC_PHY_REG_BASE + 0x8) 77 #define XENON_FC_DQ_RECEN (1 << 24) 78 #define XENON_FC_CMD_RECEN (1 << 25) 79 #define XENON_FC_QSP_RECEN (1 << 26) 80 #define XENON_FC_QSN_RECEN (1 << 27) 81 #define XENON_OEN_QSN (1 << 28) 82 #define XENON_FC_ALL_CMOS_RECEIVER 0xF000 83 84 #define XENON_EMMC_PHY_PAD_CONTROL1 (XENON_EMMC_PHY_REG_BASE + 0xC) 85 #define XENON_EMMC_FC_CMD_PD (1 << 8) 86 #define XENON_EMMC_FC_QSP_PD (1 << 9) 87 #define XENON_EMMC_FC_CMD_PU (1 << 24) 88 #define XENON_EMMC_FC_QSP_PU (1 << 25) 89 #define XENON_EMMC_FC_DQ_PD 0xFF 90 #define XENON_EMMC_FC_DQ_PU (0xFF << 16) 91 92 #define XENON_EMMC_PHY_PAD_CONTROL2 (XENON_EMMC_PHY_REG_BASE + 0x10) 93 #define XENON_ZNR_MASK 0x1F 94 #define XENON_ZNR_SHIFT 8 95 #define XENON_ZPR_MASK 0x1F 96 #define XENON_ZNR_DEF_VALUE 0xF 97 #define XENON_ZPR_DEF_VALUE 0xF 98 99 #define XENON_EMMC_PHY_LOGIC_TIMING_ADJUST (XENON_EMMC_PHY_REG_BASE + 0x18) 100 #define XENON_LOGIC_TIMING_VALUE 0x00AA8977 101 102 DECLARE_CLASS(sdhci_xenon_driver); 103 104 struct sdhci_xenon_softc { 105 device_t dev; /* Controller device */ 106 int slot_id; /* Controller ID */ 107 108 struct resource *mem_res; /* Memory resource */ 109 struct resource *irq_res; /* IRQ resource */ 110 void *intrhand; /* Interrupt handle */ 111 112 struct sdhci_slot *slot; /* SDHCI internal data */ 113 114 uint8_t znr; /* PHY ZNR */ 115 uint8_t zpr; /* PHY ZPR */ 116 bool slow_mode; /* PHY slow mode */ 117 bool wp_inverted; 118 bool skip_regulators; /* Don't switch regulators */ 119 120 regulator_t vmmc_supply; 121 regulator_t vqmmc_supply; 122 123 #ifdef FDT 124 struct sdhci_fdt_gpio *gpio; /* GPIO pins for CD detection. */ 125 #endif 126 }; 127 128 device_attach_t sdhci_xenon_attach; 129 device_detach_t sdhci_xenon_detach; 130 131 #endif /* _SDHCI_XENON_H_ */ 132