Re: [PATCH V8 07/23] mmc: sdhci: add UHS-II related definitions in headers

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On Tue, Jul 11, 2023 at 12:01 AM Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> On 21/06/23 13:01, Victor Shih wrote:
> > From: Victor Shih <victor.shih@xxxxxxxxxxxxxxxxxxx>
> >
> > 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@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
> > Signed-off-by: Victor Shih <victor.shih@xxxxxxxxxxxxxxxxxxx>
> > ---
> >  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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