diff options
Diffstat (limited to 'include/drivers/cadence/cdns_combo_phy.h')
| -rw-r--r-- | include/drivers/cadence/cdns_combo_phy.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/include/drivers/cadence/cdns_combo_phy.h b/include/drivers/cadence/cdns_combo_phy.h new file mode 100644 index 0000000..f5dabda --- /dev/null +++ b/include/drivers/cadence/cdns_combo_phy.h @@ -0,0 +1,238 @@ +/* + * Copyright (c) 2022-2023, Intel Corporation. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef CDN_COMBOPHY_H +#define CDN_COMBOPHY_H + +/* SRS */ +#define SDMMC_CDN_SRS02 0x8 +#define SDMMC_CDN_SRS03 0xC +#define SDMMC_CDN_SRS04 0x10 +#define SDMMC_CDN_SRS05 0x14 +#define SDMMC_CDN_SRS06 0x18 +#define SDMMC_CDN_SRS07 0x1C +#define SDMMC_CDN_SRS09 0x24 +#define SDMMC_CDN_SRS10 0x28 +#define SDMMC_CDN_SRS11 0x2C +#define SDMMC_CDN_SRS12 0x30 +#define SDMMC_CDN_SRS13 0x34 +#define SDMMC_CDN_SRS14 0x38 + +/* SRS03 */ +/* Response Type Select + * Defines the expected response length. + */ +#define SDMMC_CDN_RTS 16 + +/* Command CRC Check Enable + * When set to 1, the host checks if the CRC field of the response is valid. + * When 0, the CRC check is disabled and the CRC field of the response is ignored. + */ +#define SDMMC_CDN_CRCCE 19 + +/* Command Index + * This field contains a command number (index) of the command to be sent. + */ +#define SDMMC_CDN_CIDX 24 + +/* SRS09 */ +/* Card Inserted + * Indicates if the card is inserted inside the slot. + */ +#define SDMMC_CDN_CI 16 + +/* SRS10 */ +/* Data Transfer Width + * Bit used to configure DAT bus width to 1 or 4. + */ +#define SDMMC_CDN_DTW 1 + +/* Extended Data Transfer Width + * This bit is to enable/disable 8-bit DAT bus width mode. + */ +#define SDMMC_CDN_EDTW 5 + +/* SD Bus Power for VDD1 + * When set to 1, the VDD1 voltage is supplied to card/device. + */ +#define SDMMC_CDN_BP 8 + +/* SD Bus Voltage Select + * This field is used to configure VDD1 voltage level. + */ +#define SDMMC_CDN_BVS 9 + +/* SRS11 */ +/* Internal Clock Enable + * This field is designated to controls (enable/disable) external clock generator. + */ +#define SDMMC_CDN_ICE 0 + +/* Internal Clock Stable + * When 1, indicates that the clock on sdmclk pin of the host is stable. + * When 0, indicates that the clock is not stable . + */ +#define SDMMC_CDN_ICS 1 + +/* SD Clock Enable + * When set, SDCLK clock is enabled. + * When clear, SDCLK clock is stopped. + */ +#define SDMMC_CDN_SDCE 2 + +/* USDCLK Frequency Select + * This is used to calculate frequency of USDCLK clock. + */ +#define SDMMC_CDN_USDCLKFS 6 + +/* SDCLK Frequency Select + * This is used to calculate frequency of SDCLK clock. + */ +#define SDMMC_CDN_SDCLKFS 8 + +/* Data Timeout Counter Value + * This value determines the interval by which DAT line timeouts are detected + */ +#define SDMMC_CDN_DTCV 16 + +/* SRS12 */ +/* Command Complete + * Generated when the end bit of the response is received. + */ +#define SDMMC_CDN_CC 0 + +/* Transfer Complete + * Generated when the transfer which uses the DAT line is complete. + */ +#define SDMMC_CDN_TC 1 + +/* Error Interrupt + * The software can check for an error by reading this single bit first. + */ +#define SDMMC_CDN_EINT 15 + +/* SRS14 */ +/* Command Complete Interrupt Enable */ +#define SDMMC_CDN_CC_IE 0 + +/* Transfer Complete Interrupt Enable */ +#define SDMMC_CDN_TC_IE 1 + +/* DMA Interrupt Enable */ +#define SDMMC_CDN_DMAINT_IE 3 + +/* Combo PHY DLL registers */ +#define CP_DLL_REG_BASE (0x10B92000) +#define CP_DLL_DQ_TIMING_REG (0x00) +#define CP_DLL_DQS_TIMING_REG (0x04) +#define CP_DLL_GATE_LPBK_CTRL_REG (0x08) +#define CP_DLL_MASTER_CTRL_REG (0x0C) +#define CP_DLL_SLAVE_CTRL_REG (0x10) +#define CP_DLL_IE_TIMING_REG (0x14) + +#define CP_DQ_TIMING_REG_SDR (0x00000002) +#define CP_DQS_TIMING_REG_SDR (0x00100004) +#define CP_GATE_LPBK_CTRL_REG_SDR (0x00D80000) +#define CP_DLL_MASTER_CTRL_REG_SDR (0x00800000) +#define CP_DLL_SLAVE_CTRL_REG_SDR (0x00000000) + +#define CP_DLL(_reg) (CP_DLL_REG_BASE \ + + (CP_DLL_##_reg)) + +/* Control Timing Block registers */ +#define CP_CTB_REG_BASE (0x10B92080) +#define CP_CTB_CTRL_REG (0x00) +#define CP_CTB_TSEL_REG (0x04) +#define CP_CTB_GPIO_CTRL0 (0x08) +#define CP_CTB_GPIO_CTRL1 (0x0C) +#define CP_CTB_GPIO_STATUS0 (0x10) +#define CP_CTB_GPIO_STATUS1 (0x14) + +#define CP_CTRL_REG_SDR (0x00004040) +#define CP_TSEL_REG_SDR (0x00000000) + +#define CP_CTB(_reg) (CP_CTB_REG_BASE \ + + (CP_CTB_##_reg)) + +/* Combo PHY */ +#define SDMMC_CDN_REG_BASE 0x10808200 +#define PHY_DQ_TIMING_REG 0x2000 +#define PHY_DQS_TIMING_REG 0x2004 +#define PHY_GATE_LPBK_CTRL_REG 0x2008 +#define PHY_DLL_MASTER_CTRL_REG 0x200C +#define PHY_DLL_SLAVE_CTRL_REG 0x2010 +#define PHY_CTRL_REG 0x2080 +#define PHY_REG_ADDR_MASK 0xFFFF +#define PHY_REG_DATA_MASK 0xFFFFFFFF + +/* PHY_DQS_TIMING_REG */ +#define CP_USE_EXT_LPBK_DQS(x) ((x) << 22) //0x1 +#define CP_USE_LPBK_DQS(x) ((x) << 21) //0x1 +#define CP_USE_PHONY_DQS(x) ((x) << 20) //0x1 +#define CP_USE_PHONY_DQS_CMD(x) ((x) << 19) //0x1 + +/* PHY_GATE_LPBK_CTRL_REG */ +#define CP_SYNC_METHOD(x) ((x) << 31) //0x1 +#define CP_SW_HALF_CYCLE_SHIFT(x) ((x) << 28) //0x1 +#define CP_RD_DEL_SEL(x) ((x) << 19) //0x3f +#define CP_UNDERRUN_SUPPRESS(x) ((x) << 18) //0x1 +#define CP_GATE_CFG_ALWAYS_ON(x) ((x) << 6) //0x1 + +/* PHY_DLL_MASTER_CTRL_REG */ +#define CP_DLL_BYPASS_MODE(x) ((x) << 23) //0x1 +#define CP_DLL_START_POINT(x) ((x) << 0) //0xff + +/* PHY_DLL_SLAVE_CTRL_REG */ +#define CP_READ_DQS_CMD_DELAY(x) ((x) << 24) //0xff +#define CP_CLK_WRDQS_DELAY(x) ((x) << 16) //0xff +#define CP_CLK_WR_DELAY(x) ((x) << 8) //0xff +#define CP_READ_DQS_DELAY(x) ((x) << 0) //0xff + +/* PHY_DQ_TIMING_REG */ +#define CP_IO_MASK_ALWAYS_ON(x) ((x) << 31) //0x1 +#define CP_IO_MASK_END(x) ((x) << 27) //0x7 +#define CP_IO_MASK_START(x) ((x) << 24) //0x7 +#define CP_DATA_SELECT_OE_END(x) ((x) << 0) //0x7 + +/* PHY_CTRL_REG */ +#define CP_PHONY_DQS_TIMING_MASK 0x3F +#define CP_PHONY_DQS_TIMING_SHIFT 4 + +/* Shared Macros */ +#define SDMMC_CDN(_reg) (SDMMC_CDN_REG_BASE + \ + (SDMMC_CDN_##_reg)) + +struct cdns_sdmmc_combo_phy { + uint32_t cp_clk_wr_delay; + uint32_t cp_clk_wrdqs_delay; + uint32_t cp_data_select_oe_end; + uint32_t cp_dll_bypass_mode; + uint32_t cp_dll_locked_mode; + uint32_t cp_dll_start_point; + uint32_t cp_gate_cfg_always_on; + uint32_t cp_io_mask_always_on; + uint32_t cp_io_mask_end; + uint32_t cp_io_mask_start; + uint32_t cp_rd_del_sel; + uint32_t cp_read_dqs_cmd_delay; + uint32_t cp_read_dqs_delay; + uint32_t cp_sw_half_cycle_shift; + uint32_t cp_sync_method; + uint32_t cp_underrun_suppress; + uint32_t cp_use_ext_lpbk_dqs; + uint32_t cp_use_lpbk_dqs; + uint32_t cp_use_phony_dqs; + uint32_t cp_use_phony_dqs_cmd; +}; + +/* Function Prototype */ + +int cdns_sdmmc_write_phy_reg(uint32_t phy_reg_addr, uint32_t phy_reg_addr_value, + uint32_t phy_reg_data, uint32_t phy_reg_data_value); +int cdns_sd_card_detect(void); +int cdns_emmc_card_reset(void); + +#endif |