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Message-ID: <CAK00qKCvOxKxenxcY386xYViBLps+CH3F8h=_itt_GUTi+1pMQ@mail.gmail.com>
Date: Fri, 21 Jul 2023 18:11:24 +0800
From: Victor Shih <victorshihgli@...il.com>
To: Adrian Hunter <adrian.hunter@...el.com>
Cc: ulf.hansson@...aro.org, linux-mmc@...r.kernel.org,
linux-kernel@...r.kernel.org, benchuanggli@...il.com,
HL.Liu@...esyslogic.com.tw, Greg.tu@...esyslogic.com.tw,
takahiro.akashi@...aro.org, dlunev@...omium.org,
Ben Chuang <ben.chuang@...esyslogic.com.tw>,
Victor Shih <victor.shih@...esyslogic.com.tw>
Subject: Re: [PATCH V8 07/23] mmc: sdhci: add UHS-II related definitions in headers
On Tue, Jul 11, 2023 at 12:01 AM Adrian Hunter <adrian.hunter@...el.com> wrote:
>
> On 21/06/23 13:01, Victor Shih wrote:
> > From: Victor Shih <victor.shih@...esyslogic.com.tw>
> >
> > Add UHS-II related definitions in shdci.h and sdhci-uhs2.h.
>
> shdci -> sdhci
>
Hi, Adrian
I will fix it in the V9 version.
Thanks, Victor Shih
> >
> > Updates in V8:
> > - Use tabs instead of spaces.
> >
> > Updates in V7:
> > - Reorder values and positions of definitions.
> >
> > Updates in V6:
> > - Rename definitions.
> > - Use BIT() GENMASK() instead of bitwise operations
> >
> > Signed-off-by: Ben Chuang <ben.chuang@...esyslogic.com.tw>
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>
> > Signed-off-by: Victor Shih <victor.shih@...esyslogic.com.tw>
> > ---
> > drivers/mmc/host/sdhci-uhs2.h | 177 ++++++++++++++++++++++++++++++++++
> > drivers/mmc/host/sdhci.h | 54 ++++++++++-
> > 2 files changed, 230 insertions(+), 1 deletion(-)
> > create mode 100644 drivers/mmc/host/sdhci-uhs2.h
> >
> > diff --git a/drivers/mmc/host/sdhci-uhs2.h b/drivers/mmc/host/sdhci-uhs2.h
> > new file mode 100644
> > index 000000000000..e993f41ffb7f
> > --- /dev/null
> > +++ b/drivers/mmc/host/sdhci-uhs2.h
> > @@ -0,0 +1,177 @@
> > +/* SPDX-License-Identifier: GPL-2.0-or-later */
> > +/*
> > + * linux/drivers/mmc/host/sdhci-uhs2.h - Secure Digital Host Controller Interface driver
> > + *
> > + * Header file for Host Controller UHS2 related registers.
> > + *
> > + * Copyright (C) 2014 Intel Corp, All Rights Reserved.
> > + */
> > +#ifndef __SDHCI_UHS2_H
> > +#define __SDHCI_UHS2_H
> > +
> > +#include <linux/bits.h>
> > +
> > +/* SDHCI Category C registers : UHS2 usage */
> > +
> > +#define SDHCI_UHS2_CM_TRAN_RESP 0x10
> > +#define SDHCI_UHS2_SD_TRAN_RESP 0x18
> > +#define SDHCI_UHS2_SD_TRAN_RESP_1 0x1C
> > +
> > +/* SDHCI Category B registers : UHS2 only */
> > +
> > +#define SDHCI_UHS2_BLOCK_SIZE 0x80
> > +#define SDHCI_UHS2_MAKE_BLKSZ(dma, blksz) ((((dma) & 0x7) << 12) | ((blksz) & 0xFFF))
> > +
> > +#define SDHCI_UHS2_BLOCK_COUNT 0x84
> > +
> > +#define SDHCI_UHS2_CMD_PACKET 0x88
> > +#define SDHCI_UHS2_CMD_PACK_MAX_LEN 20
> > +
> > +#define SDHCI_UHS2_TRANS_MODE 0x9C
> > +#define SDHCI_UHS2_TRNS_DMA BIT(0)
> > +#define SDHCI_UHS2_TRNS_BLK_CNT_EN BIT(1)
> > +#define SDHCI_UHS2_TRNS_DATA_TRNS_WRT BIT(4)
> > +#define SDHCI_UHS2_TRNS_BLK_BYTE_MODE BIT(5)
> > +#define SDHCI_UHS2_TRNS_RES_R5 BIT(6)
> > +#define SDHCI_UHS2_TRNS_RES_ERR_CHECK_EN BIT(7)
> > +#define SDHCI_UHS2_TRNS_RES_INT_DIS BIT(8)
> > +#define SDHCI_UHS2_TRNS_WAIT_EBSY BIT(14)
> > +#define SDHCI_UHS2_TRNS_2L_HD BIT(15)
> > +
> > +#define SDHCI_UHS2_CMD 0x9E
> > +#define SDHCI_UHS2_CMD_SUB_CMD BIT(2)
> > +#define SDHCI_UHS2_CMD_DATA BIT(5)
> > +#define SDHCI_UHS2_CMD_TRNS_ABORT BIT(6)
> > +#define SDHCI_UHS2_CMD_CMD12 BIT(7)
> > +#define SDHCI_UHS2_CMD_DORMANT GENMASK(7, 6)
> > +#define SDHCI_UHS2_CMD_PACK_LEN_MASK GENMASK(12, 8)
> > +
> > +#define SDHCI_UHS2_RESPONSE 0xA0
> > +#define SDHCI_UHS2_RESPONSE_MAX_LEN 20
> > +
> > +#define SDHCI_UHS2_MSG_SELECT 0xB4
> > +#define SDHCI_UHS2_MSG_SELECT_CURR 0x0
> > +#define SDHCI_UHS2_MSG_SELECT_ONE 0x1
> > +#define SDHCI_UHS2_MSG_SELECT_TWO 0x2
> > +#define SDHCI_UHS2_MSG_SELECT_THREE 0x3
> > +
> > +#define SDHCI_UHS2_MSG 0xB8
> > +
> > +#define SDHCI_UHS2_DEV_INT_STATUS 0xBC
> > +
> > +#define SDHCI_UHS2_DEV_SELECT 0xBE
> > +#define SDHCI_UHS2_DEV_SEL_MASK GENMASK(3, 0)
> > +#define SDHCI_UHS2_DEV_SEL_INT_MSG_EN BIT(7)
> > +
> > +#define SDHCI_UHS2_DEV_INT_CODE 0xBF
> > +
> > +#define SDHCI_UHS2_SW_RESET 0xC0
> > +#define SDHCI_UHS2_SW_RESET_FULL BIT(0)
> > +#define SDHCI_UHS2_SW_RESET_SD BIT(1)
> > +
> > +#define SDHCI_UHS2_TIMER_CTRL 0xC2
> > +#define SDHCI_UHS2_TIMER_CTRL_DEADLOCK_MASK GENMASK(7, 4)
> > +
> > +#define SDHCI_UHS2_INT_STATUS 0xC4
> > +#define SDHCI_UHS2_INT_STATUS_ENABLE 0xC8
> > +#define SDHCI_UHS2_INT_SIGNAL_ENABLE 0xCC
> > +#define SDHCI_UHS2_INT_HEADER_ERR BIT(0)
> > +#define SDHCI_UHS2_INT_RES_ERR BIT(1)
> > +#define SDHCI_UHS2_INT_RETRY_EXP BIT(2)
> > +#define SDHCI_UHS2_INT_CRC BIT(3)
> > +#define SDHCI_UHS2_INT_FRAME_ERR BIT(4)
> > +#define SDHCI_UHS2_INT_TID_ERR BIT(5)
> > +#define SDHCI_UHS2_INT_UNRECOVER BIT(7)
> > +#define SDHCI_UHS2_INT_EBUSY_ERR BIT(8)
> > +#define SDHCI_UHS2_INT_ADMA_ERROR BIT(15)
> > +#define SDHCI_UHS2_INT_CMD_TIMEOUT BIT(16)
> > +#define SDHCI_UHS2_INT_DEADLOCK_TIMEOUT BIT(17)
> > +#define SDHCI_UHS2_INT_VENDOR_ERR BIT(27)
> > +#define SDHCI_UHS2_INT_ERROR_MASK ( \
> > + SDHCI_UHS2_INT_HEADER_ERR | \
> > + SDHCI_UHS2_INT_RES_ERR | \
> > + SDHCI_UHS2_INT_RETRY_EXP | \
> > + SDHCI_UHS2_INT_CRC | \
> > + SDHCI_UHS2_INT_FRAME_ERR | \
> > + SDHCI_UHS2_INT_TID_ERR | \
> > + SDHCI_UHS2_INT_UNRECOVER | \
> > + SDHCI_UHS2_INT_EBUSY_ERR | \
> > + SDHCI_UHS2_INT_ADMA_ERROR | \
> > + SDHCI_UHS2_INT_CMD_TIMEOUT | \
> > + SDHCI_UHS2_INT_DEADLOCK_TIMEOUT)
> > +#define SDHCI_UHS2_INT_CMD_ERR_MASK ( \
> > + SDHCI_UHS2_INT_HEADER_ERR | \
> > + SDHCI_UHS2_INT_RES_ERR | \
> > + SDHCI_UHS2_INT_FRAME_ERR | \
> > + SDHCI_UHS2_INT_TID_ERR | \
> > + SDHCI_UHS2_INT_CMD_TIMEOUT)
> > +/* CRC Error occurs during a packet receiving */
> > +#define SDHCI_UHS2_INT_DATA_ERR_MASK ( \
> > + SDHCI_UHS2_INT_RETRY_EXP | \
> > + SDHCI_UHS2_INT_CRC | \
> > + SDHCI_UHS2_INT_UNRECOVER | \
> > + SDHCI_UHS2_INT_EBUSY_ERR | \
> > + SDHCI_UHS2_INT_ADMA_ERROR | \
> > + SDHCI_UHS2_INT_DEADLOCK_TIMEOUT)
> > +
> > +#define SDHCI_UHS2_SETTINGS_PTR 0xE0
> > +#define SDHCI_UHS2_GEN_SETTINGS_POWER_LOW BIT(0)
> > +#define SDHCI_UHS2_GEN_SETTINGS_N_LANES_MASK GENMASK(11, 8)
> > +#define SDHCI_UHS2_FD_OR_2L_HD 0x0 /* 2 lanes */
> > +#define SDHCI_UHS2_2D1U_FD 0x2 /* 3 lanes, 2 down, 1 up, full duplex */
> > +#define SDHCI_UHS2_1D2U_FD 0x3 /* 3 lanes, 1 down, 2 up, full duplex */
> > +#define SDHCI_UHS2_2D2U_FD 0x4 /* 4 lanes, 2 down, 2 up, full duplex */
> > +
> > +#define SDHCI_UHS2_PHY_SET_SPEED_B BIT(6)
> > +#define SDHCI_UHS2_PHY_HIBERNATE_EN BIT(12)
> > +#define SDHCI_UHS2_PHY_N_LSS_SYN_MASK GENMASK(19, 16)
> > +#define SDHCI_UHS2_PHY_N_LSS_DIR_MASK GENMASK(23, 20)
> > +
> > +#define SDHCI_UHS2_TRAN_N_FCU_MASK GENMASK(15, 8)
> > +#define SDHCI_UHS2_TRAN_RETRY_CNT_MASK GENMASK(17, 16)
> > +#define SDHCI_UHS2_TRAN_1_N_DAT_GAP_MASK GENMASK(7, 0)
> > +
> > +#define SDHCI_UHS2_CAPS_PTR 0xE2
> > +#define SDHCI_UHS2_CAPS_OFFSET 0
> > +#define SDHCI_UHS2_CAPS_DAP_MASK GENMASK(3, 0)
> > +#define SDHCI_UHS2_CAPS_GAP_MASK GENMASK(7, 4)
> > +#define SDHCI_UHS2_CAPS_GAP(gap) ((gap) * 360)
> > +#define SDHCI_UHS2_CAPS_LANE_MASK GENMASK(13, 8)
> > +#define SDHCI_UHS2_CAPS_2L_HD_FD 1
> > +#define SDHCI_UHS2_CAPS_2D1U_FD 2
> > +#define SDHCI_UHS2_CAPS_1D2U_FD 4
> > +#define SDHCI_UHS2_CAPS_2D2U_FD 8
> > +#define SDHCI_UHS2_CAPS_ADDR_64 BIT(14)
> > +#define SDHCI_UHS2_CAPS_BOOT BIT(15)
> > +#define SDHCI_UHS2_CAPS_DEV_TYPE_MASK GENMASK(17, 16)
> > +#define SDHCI_UHS2_CAPS_DEV_TYPE_RMV 0
> > +#define SDHCI_UHS2_CAPS_DEV_TYPE_EMB 1
> > +#define SDHCI_UHS2_CAPS_DEV_TYPE_EMB_RMV 2
> > +#define SDHCI_UHS2_CAPS_NUM_DEV_MASK GENMASK(21, 18)
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_MASK GENMASK(23, 22)
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_SHIFT 22
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_P2P 0
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_RING 1
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_HUB 2
> > +#define SDHCI_UHS2_CAPS_BUS_TOPO_HUB_RING 3
> > +
> > +#define SDHCI_UHS2_CAPS_PHY_OFFSET 4
> > +#define SDHCI_UHS2_CAPS_PHY_REV_MASK GENMASK(5, 0)
> > +#define SDHCI_UHS2_CAPS_PHY_RANGE_MASK GENMASK(7, 6)
> > +#define SDHCI_UHS2_CAPS_PHY_RANGE_A 0
> > +#define SDHCI_UHS2_CAPS_PHY_RANGE_B 1
> > +#define SDHCI_UHS2_CAPS_PHY_N_LSS_SYN_MASK GENMASK(19, 16)
> > +#define SDHCI_UHS2_CAPS_PHY_N_LSS_DIR_MASK GENMASK(23, 20)
> > +#define SDHCI_UHS2_CAPS_TRAN_OFFSET 8
> > +#define SDHCI_UHS2_CAPS_TRAN_LINK_REV_MASK GENMASK(5, 0)
> > +#define SDHCI_UHS2_CAPS_TRAN_N_FCU_MASK GENMASK(15, 8)
> > +#define SDHCI_UHS2_CAPS_TRAN_HOST_TYPE_MASK GENMASK(18, 16)
> > +#define SDHCI_UHS2_CAPS_TRAN_BLK_LEN_MASK GENMASK(31, 20)
> > +
> > +#define SDHCI_UHS2_CAPS_TRAN_1_OFFSET 12
> > +#define SDHCI_UHS2_CAPS_TRAN_1_N_DATA_GAP_MASK GENMASK(7, 0)
> > +
> > +#define SDHCI_UHS2_EMBED_CTRL_PTR 0xE6
> > +#define SDHCI_UHS2_VENDOR_PTR 0xE8
> > +
> > +#endif /* __SDHCI_UHS2_H */
> > diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> > index f219bdea8f28..4f23d54a7557 100644
> > --- a/drivers/mmc/host/sdhci.h
> > +++ b/drivers/mmc/host/sdhci.h
> > @@ -43,8 +43,23 @@
> > #define SDHCI_TRNS_READ 0x10
> > #define SDHCI_TRNS_MULTI 0x20
> >
> > +/*
> > + * Defined in Host Version 4.0.
> > + */
> > +#define SDHCI_TRNS_RES_TYPE 0x40
> > +#define SDHCI_TRNS_RES_ERR_CHECK 0x80
> > +#define SDHCI_TRNS_RES_INT_DIS 0x0100
> > +
> > #define SDHCI_COMMAND 0x0E
> > #define SDHCI_CMD_RESP_MASK 0x03
> > +
> > +/*
> > + * Host Version 4.10 adds this bit to distinguish a main command or
> > + * sub command.
> > + * For example with SDIO, CMD52 (sub command) issued during CMD53 (main command).
> > + */
> > +#define SDHCI_CMD_SUB_CMD 0x04
> > +
> > #define SDHCI_CMD_CRC 0x08
> > #define SDHCI_CMD_INDEX 0x10
> > #define SDHCI_CMD_DATA 0x20
> > @@ -65,6 +80,9 @@
> > #define SDHCI_PRESENT_STATE 0x24
> > #define SDHCI_CMD_INHIBIT 0x00000001
> > #define SDHCI_DATA_INHIBIT 0x00000002
> > +
> > +#define SDHCI_DAT_4_TO_7_LVL_MASK 0x000000F0
> > +
> > #define SDHCI_DOING_WRITE 0x00000100
> > #define SDHCI_DOING_READ 0x00000200
> > #define SDHCI_SPACE_AVAILABLE 0x00000400
> > @@ -80,6 +98,15 @@
> > #define SDHCI_DATA_0_LVL_MASK 0x00100000
> > #define SDHCI_CMD_LVL 0x01000000
> >
> > +/* Host Version 4.10 */
> > +
> > +#define SDHCI_HOST_REGULATOR_STABLE 0x02000000
> > +#define SDHCI_CMD_NOT_ISSUED_ERR 0x08000000
> > +#define SDHCI_SUB_CMD_STATUS 0x10000000
> > +#define SDHCI_UHS2_IN_DORMANT_STATE 0x20000000
> > +#define SDHCI_UHS2_LANE_SYNC 0x40000000
> > +#define SDHCI_UHS2_IF_DETECT 0x80000000
> > +
> > #define SDHCI_HOST_CONTROL 0x28
> > #define SDHCI_CTRL_LED 0x01
> > #define SDHCI_CTRL_4BITBUS 0x02
> > @@ -117,7 +144,7 @@
> > #define SDHCI_CLOCK_CONTROL 0x2C
> > #define SDHCI_DIVIDER_SHIFT 8
> > #define SDHCI_DIVIDER_HI_SHIFT 6
> > -#define SDHCI_DIV_MASK 0xFF
> > +#define SDHCI_DIV_MASK 0xFF
> > #define SDHCI_DIV_MASK_LEN 8
> > #define SDHCI_DIV_HI_MASK 0x300
> > #define SDHCI_PROG_CLOCK_MODE 0x0020
> > @@ -146,6 +173,10 @@
> > #define SDHCI_INT_CARD_REMOVE 0x00000080
> > #define SDHCI_INT_CARD_INT 0x00000100
> > #define SDHCI_INT_RETUNE 0x00001000
> > +
> > +/* Host Version 4.10 */
> > +#define SDHCI_INT_FX_EVENT 0x00002000
> > +
> > #define SDHCI_INT_CQE 0x00004000
> > #define SDHCI_INT_ERROR 0x00008000
> > #define SDHCI_INT_TIMEOUT 0x00010000
> > @@ -159,6 +190,9 @@
> > #define SDHCI_INT_AUTO_CMD_ERR 0x01000000
> > #define SDHCI_INT_ADMA_ERROR 0x02000000
> >
> > +/* Host Version 4.0 */
> > +#define SDHCI_INT_RESP_ERR 0x08000000
> > +
> > #define SDHCI_INT_NORMAL_MASK 0x00007FFF
> > #define SDHCI_INT_ERROR_MASK 0xFFFF8000
> >
> > @@ -185,6 +219,9 @@
> > #define SDHCI_AUTO_CMD_END_BIT 0x00000008
> > #define SDHCI_AUTO_CMD_INDEX 0x00000010
> >
> > +/* Host Version 4.10 */
> > +#define SDHCI_AUTO_CMD_RESP_ERR 0x0020
> > +
> > #define SDHCI_HOST_CONTROL2 0x3E
> > #define SDHCI_CTRL_UHS_MASK 0x0007
> > #define SDHCI_CTRL_UHS_SDR12 0x0000
> > @@ -193,6 +230,7 @@
> > #define SDHCI_CTRL_UHS_SDR104 0x0003
> > #define SDHCI_CTRL_UHS_DDR50 0x0004
> > #define SDHCI_CTRL_HS400 0x0005 /* Non-standard */
> > +#define SDHCI_CTRL_UHS2 0x0007
> > #define SDHCI_CTRL_VDD_180 0x0008
> > #define SDHCI_CTRL_DRV_TYPE_MASK 0x0030
> > #define SDHCI_CTRL_DRV_TYPE_B 0x0000
> > @@ -201,9 +239,12 @@
> > #define SDHCI_CTRL_DRV_TYPE_D 0x0030
> > #define SDHCI_CTRL_EXEC_TUNING 0x0040
> > #define SDHCI_CTRL_TUNED_CLK 0x0080
> > +#define SDHCI_CTRL_UHS2_ENABLE 0x0100
> > +#define SDHCI_CTRL_ADMA2_LEN_MODE 0x0400
> > #define SDHCI_CMD23_ENABLE 0x0800
> > #define SDHCI_CTRL_V4_MODE 0x1000
> > #define SDHCI_CTRL_64BIT_ADDR 0x2000
> > +#define SDHCI_CTRL_ASYNC_INT_ENABLE 0x4000
> > #define SDHCI_CTRL_PRESET_VAL_ENABLE 0x8000
> >
> > #define SDHCI_CAPABILITIES 0x40
> > @@ -226,11 +267,13 @@
> > #define SDHCI_CAN_VDD_180 0x04000000
> > #define SDHCI_CAN_64BIT_V4 0x08000000
> > #define SDHCI_CAN_64BIT 0x10000000
> > +#define SDHCI_CAN_ASYNC_INT 0x20000000
> >
> > #define SDHCI_CAPABILITIES_1 0x44
> > #define SDHCI_SUPPORT_SDR50 0x00000001
> > #define SDHCI_SUPPORT_SDR104 0x00000002
> > #define SDHCI_SUPPORT_DDR50 0x00000004
> > +#define SDHCI_SUPPORT_UHS2 0x00000008
> > #define SDHCI_DRIVER_TYPE_A 0x00000010
> > #define SDHCI_DRIVER_TYPE_C 0x00000020
> > #define SDHCI_DRIVER_TYPE_D 0x00000040
> > @@ -239,6 +282,7 @@
> > #define SDHCI_RETUNING_MODE_MASK GENMASK(15, 14)
> > #define SDHCI_CLOCK_MUL_MASK GENMASK(23, 16)
> > #define SDHCI_CAN_DO_ADMA3 0x08000000
> > +#define SDHCI_CAN_VDD2_180 0x10000000 /* UHS-2 1.8V VDD2 */
> > #define SDHCI_SUPPORT_HS400 0x80000000 /* Non-standard */
> >
> > #define SDHCI_MAX_CURRENT 0x48
> > @@ -246,11 +290,14 @@
> > #define SDHCI_MAX_CURRENT_330_MASK GENMASK(7, 0)
> > #define SDHCI_MAX_CURRENT_300_MASK GENMASK(15, 8)
> > #define SDHCI_MAX_CURRENT_180_MASK GENMASK(23, 16)
> > +#define SDHCI_MAX_CURRENT_1 0x4C
> > +#define SDHCI_MAX_CURRENT_VDD2_180_MASK GENMASK(7, 0) /* UHS2 */
> > #define SDHCI_MAX_CURRENT_MULTIPLIER 4
> >
> > /* 4C-4F reserved for more max current */
> >
> > #define SDHCI_SET_ACMD12_ERROR 0x50
> > +/* Host Version 4.10 */
> > #define SDHCI_SET_INT_ERROR 0x52
> >
> > #define SDHCI_ADMA_ERROR 0x54
> > @@ -269,10 +316,15 @@
> > #define SDHCI_PRESET_FOR_SDR104 0x6C
> > #define SDHCI_PRESET_FOR_DDR50 0x6E
> > #define SDHCI_PRESET_FOR_HS400 0x74 /* Non-standard */
> > +
> > +/* UHS2 */
> > +#define SDHCI_PRESET_FOR_UHS2 0x74
> > #define SDHCI_PRESET_DRV_MASK GENMASK(15, 14)
> > #define SDHCI_PRESET_CLKGEN_SEL BIT(10)
> > #define SDHCI_PRESET_SDCLK_FREQ_MASK GENMASK(9, 0)
> >
> > +#define SDHCI_ADMA3_ADDRESS 0x78
> > +
> > #define SDHCI_SLOT_INT_STATUS 0xFC
> >
> > #define SDHCI_HOST_VERSION 0xFE
>
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