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Move eSDHC adapter card identification to board files 

The eSDHC adapter card identification and multiplexing configuration
through FPGA had been implemented in both common mmc driver and
fsl_esdhc driver. However it is proper to move these code to board
files and do it during board initialization. The FPGA registers are
also board specific.

This patch is to move eSDHC adapter card identification and
multiplexing configuration from mmc driver to specific board files.
And the option CONFIG_FSL_ESDHC_ADAPTER_IDENT is no longer needed.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
[Rebased, Removed T1040QDS change as board does not exist]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Yangbo Lu 2020-06-17 18:08:58 +08:00 committed by Priyanka Jain
parent 4f73897b99
commit 39913acedd
11 changed files with 33 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
board/freescale/common/qixis.h
View File

@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2011 Freescale Semiconductor
* Copyright 2020 NXP
* Author: Shengzhou Liu <Shengzhou.Liu@freescale.com>
*
* This file provides support for the QIXIS of some Freescale reference boards.
@ -115,7 +116,6 @@ void qixis_write_i2c(unsigned int reg, u8 value);
#endif
/* Use for SDHC adapter card type identification and operation */
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
#define QIXIS_SDID_MASK 0x07
#define QIXIS_ESDHC_ADAPTER_TYPE_EMMC45 0x1 /* eMMC Card Rev4.5 */
#define QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY 0x2 /* SD/MMC Legacy Card */
@ -131,6 +131,5 @@ void qixis_write_i2c(unsigned int reg, u8 value);
#define QIXIS_DAT4 0X01
#define QIXIS_EVDD_BY_SDHC_VS 0x0c
#endif
#endif

29
board/freescale/t208xqds/t208xqds.c
View File

@ -345,6 +345,33 @@ int brd_mux_lane_to_slot(void)
return 0;
}
static void esdhc_adapter_card_ident(void)
{
u8 card_id, value;
card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
switch (card_id) {
case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
value = QIXIS_READ(brdcfg[5]);
value |= (QIXIS_DAT4 | QIXIS_DAT5_6_7);
QIXIS_WRITE(brdcfg[5], value);
break;
case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
value = QIXIS_READ(pwr_ctl[1]);
value |= QIXIS_EVDD_BY_SDHC_VS;
QIXIS_WRITE(pwr_ctl[1], value);
break;
case QIXIS_ESDHC_ADAPTER_TYPE_EMMC44:
value = QIXIS_READ(brdcfg[5]);
value |= (QIXIS_SDCLKIN | QIXIS_SDCLKOUT);
QIXIS_WRITE(brdcfg[5], value);
break;
default:
break;
}
}
int board_early_init_r(void)
{
const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
@ -384,7 +411,7 @@ int board_early_init_r(void)
brd_mux_lane_to_slot();
select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT, 0);
esdhc_adapter_card_ident();
return 0;
}

14
doc/README.fsl-esdhc
View File

@ -1,19 +1,5 @@
Freescale esdhc-specific options
- CONFIG_FSL_ESDHC_ADAPTER_IDENT
Support Freescale adapter card type identification. This is implemented by
operating Qixis FPGA relevant registers. The STAT_PRES1 register has SDHC
Card ID[0:2] bits showing the type of card installed in the SDHC Adapter Slot.
SDHC Card ID[0:2] Adapter Card Type
0b000 reserved
0b001 eMMC Card Rev4.5
0b010 SD/MMC Legacy Card
0b011 eMMC Card Rev4.4
0b100 reserved
0b101 MMC Card
0b110 SD Card Rev2.0/3.0
0b111 No card is present
- CONFIG_SYS_FSL_ESDHC_LE
ESDHC IP is in little-endian mode. Accessing ESDHC registers can be
determined by ESDHC IP's endian mode or processor's endian mode.

38
drivers/mmc/fsl_esdhc.c
View File

@ -671,44 +671,6 @@ static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv,
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
}
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
void mmc_adapter_card_type_ident(void)
{
u8 card_id;
u8 value;
card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
switch (card_id) {
case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
value = QIXIS_READ(brdcfg[5]);
value |= (QIXIS_DAT4 | QIXIS_DAT5_6_7);
QIXIS_WRITE(brdcfg[5], value);
break;
case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
value = QIXIS_READ(pwr_ctl[1]);
value |= QIXIS_EVDD_BY_SDHC_VS;
QIXIS_WRITE(pwr_ctl[1], value);
break;
case QIXIS_ESDHC_ADAPTER_TYPE_EMMC44:
value = QIXIS_READ(brdcfg[5]);
value |= (QIXIS_SDCLKIN | QIXIS_SDCLKOUT);
QIXIS_WRITE(brdcfg[5], value);
break;
case QIXIS_ESDHC_ADAPTER_TYPE_RSV:
break;
case QIXIS_ESDHC_ADAPTER_TYPE_MMC:
break;
case QIXIS_ESDHC_ADAPTER_TYPE_SD:
break;
case QIXIS_ESDHC_NO_ADAPTER:
break;
default:
break;
}
}
#endif
#ifdef CONFIG_OF_LIBFDT
__weak int esdhc_status_fixup(void *blob, const char *compat)
{

4
drivers/mmc/mmc-uclass.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Google, Inc
* Copyright 2020 NXP
* Written by Simon Glass <sjg@chromium.org>
*/
@ -309,9 +310,6 @@ void mmc_do_preinit(void)
if (!m)
continue;
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_set_preinit(m, 1);
#endif
if (m->preinit)
mmc_start_init(m);
}

7
drivers/mmc/mmc.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2008, Freescale Semiconductor, Inc
* Copyright 2020 NXP
* Andy Fleming
*
* Based vaguely on the Linux code
@ -2789,9 +2790,6 @@ int mmc_get_op_cond(struct mmc *mmc)
if (mmc->has_init)
return 0;
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_adapter_card_type_ident();
#endif
err = mmc_power_init(mmc);
if (err)
return err;
@ -3073,9 +3071,6 @@ int mmc_init_device(int num)
m = mmc_get_mmc_dev(dev);
if (!m)
return 0;
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_set_preinit(m, 1);
#endif
if (m->preinit)
mmc_start_init(m);

7
drivers/mmc/mmc_legacy.c
View File

@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016 Google, Inc
* Copyright 2020 NXP
* Written by Simon Glass <sjg@chromium.org>
*/
@ -23,9 +24,6 @@ struct mmc *find_mmc_device(int dev_num)
void mmc_do_preinit(void)
{
struct mmc *m = &mmc_static;
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_set_preinit(m, 1);
#endif
if (m->preinit)
mmc_start_init(m);
}
@ -77,9 +75,6 @@ void mmc_do_preinit(void)
list_for_each(entry, &mmc_devices) {
m = list_entry(entry, struct mmc, link);
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
mmc_set_preinit(m, 1);
#endif
if (m->preinit)
mmc_start_init(m);
}

4
drivers/mmc/mmc_private.h
View File

@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2008,2010 Freescale Semiconductor, Inc
* Copyright 2020 NXP
* Andy Fleming
*
* Based (loosely) on the Linux code
@ -16,9 +17,6 @@ int mmc_send_status(struct mmc *mmc, unsigned int *status);
int mmc_poll_for_busy(struct mmc *mmc, int timeout);
int mmc_set_blocklen(struct mmc *mmc, int len);
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
void mmc_adapter_card_type_ident(void);
#endif
#if CONFIG_IS_ENABLED(BLK)
ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt,

1
include/configs/T208xQDS.h
View File

@ -632,7 +632,6 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_SYS_FSL_ESDHC_ADDR CONFIG_SYS_MPC85xx_ESDHC_ADDR
#define CONFIG_SYS_FSL_ESDHC_BROKEN_TIMEOUT
#define CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
#define CONFIG_FSL_ESDHC_ADAPTER_IDENT
#endif
/*

4
include/fsl_esdhc.h
View File

@ -16,10 +16,6 @@
/* needed for the mmc_cfg definition */
#include <mmc.h>
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
#include "../board/freescale/common/qixis.h"
#endif
/* FSL eSDHC-specific constants */
#define SYSCTL 0x0002e02c
#define SYSCTL_INITA 0x08000000

1
scripts/config_whitelist.txt
View File

@ -549,7 +549,6 @@ CONFIG_FSL_DIU_CH7301
CONFIG_FSL_DIU_FB
CONFIG_FSL_DMA
CONFIG_FSL_DSPI1
CONFIG_FSL_ESDHC_ADAPTER_IDENT
CONFIG_FSL_ESDHC_PIN_MUX
CONFIG_FSL_FIXED_MMC_LOCATION
CONFIG_FSL_FM_10GEC_REGULAR_NOTATION