u-boot.git/drivers/mmc, branch v2021.10

sunxi: mmc: A20: Fix MMC optimisation

2021-09-13T23:02:10Z

Some SoCs (as seen on A20) seem to misreport the MMC FIFO level if the FIFO is completely full: the level size reads as zero, but the FIFO_FULL bit is set. We won't do a single iteration of the read loop in this case, so will be stuck forever. Check for this situation and use a safe minimal FIFO size instead when we hit this case. This fixes MMC boot on A20 devices after the MMC FIFO optimisation (9faae5457f52). Signed-off-by: Andre Przywara Reviewed-by: Jaehoon Chung

mmc: fsl_esdhc: remove 1ms sleep in esdhc_send_cmd_common()

2021-09-13T03:46:50Z

Since the beginning of this driver which was initially for the MPC8379 and MPC8536 SoCs, there is this spurious 1ms delay. According to the comment it should actually be only 8 clock cycles. Esp. during EFI block transfers, this 1ms add up to a significant delay and slows down EFI boot. I couldn't find any mention in the MPC8536 that there should be a delay of 8 clock cycles between commands. The SD card specification mentions that the clock has to be left enabled for 8 cycles after a command or response. But I don't see how this delay will help with this. Go ahead and just remove it. If there will ever be any regression we can introduce a compile time flag, but for now I'd like to keep it simple. In the split off imx driver this delay was also removed in commit 9098682200e6 ("mmc: fsl_esdhc_imx: remove the 1ms delay before sending command"). Signed-off-by: Michael Walle

mmc: fix device_remove when HS400_ES is enabled

2021-09-10T10:17:49Z

HS400_ES is missed when down grade to HS mode during device_remove the mmc device Signed-off-by: Ye Li Reviewed-by: Jaehoon Chung

mmc: fix switch issue with send_status disabled

2021-09-10T10:17:41Z

When send_status is false or wait_dat0 is not supported, the switch function should not send CMD13 but directly return. Signed-off-by: Ye Li Reviewed-by: Jaehoon Chung

mmc: Add support for enumerating MMC card in a given mode using mmc command

2021-09-10T10:17:04Z

Add support for enumerating MMC card in a given mode using mmc rescan and mmc dev commands. The speed mode is provided as the last argument in these commands and is indicated using the index from enum bus_mode in include/mmc.h. A speed mode can be set only if it has already been enabled in the device tree. Signed-off-by: Aswath Govindraju Reviewed-by: Jaehoon Chung Tested-by: Jaehoon Chung

Revert "mmc: sdhci: set to INT_DATA_END when there are data"

2021-09-10T10:13:34Z

This reverts commit 17ea3c862865c0d704646f67dbf8412f9ff54f59. In eMMC specification, for the response-with-busy(R1b, R5b) command, the DAT0 will driven to LOW as BUSY status, and in sdhci specification, the transfer complete bit should be wait for BUSY status de-assert. All response-with-busy commands don't contain data, the data judgement is no need. Signed-off-by: Yuezhang.Mo Reviewed-by: Andy Wu Reviewed-by: Jaehoon Chung

Merge tag 'xilinx-for-v2021.10-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze

2021-08-27T12:33:02Z

Xilinx changes for v2021.10-rc3 xilinx: - Disable CONFIG_ARCH_FIXUP_FDT_MEMORY - Print information about cpu via soc drivers and enable DISPLAY_CPUINFO - Wire infrastructure for DTB_RESELECT and MULTI_DTB_FIT zynq: - Wire single QSPI - Use power-source instead of io-standard properties - Enable nor on zc770-xm012 zynqmp: - Change handling around multi_boot() - Setup offset for u-boot.itb in spi - Generate run time dfu_alt_info for capsule update - Use explicit values for enums (zynqmp_firmware.h) - Enable RTC/SHA1/BUTTON/BUTTON_GPIO command - Disable WDT driver by default - Bind usb/scsi via preboot because of EFI - DT updates/fixes - Add soc driver - Fix SPL SPI boot mode versal: - Add soc driver sdhci: - Update tap delay programming for zynq_sdhci driver cmd: - Fix RTC uclass handling in date command - Update pwm help message - Update reset help message watchdog: - Fix wwdt compilation rtc: - Deal with seq alias in rtc uclass - Add zynqmp RTC driver fdt: - Add kernel-doc for fdt_fixup_memory_banks()

mmc: zynq_sdhci: Use set_control_reg from sdhci.c

2021-08-26T06:08:11Z

Since set_control_reg is available in sdhci.c, use it and remove arasan_sdhci_set_control_reg(). Signed-off-by: Ashok Reddy Soma Reviewed-by: Jaehoon Chung Signed-off-by: Michal Simek

mmc: zynq_sdhci: Wait till sd card detect state is stable

2021-08-26T06:08:11Z

As per SD spec when SD host controller is reset, it takes 1000msec to detect the card state. In case, if we enable the sd bus voltage & card detect state is not stable, then host controller will disable the sd bus voltage. In case of warm/subsystem reboot, due to unstable card detect state host controller is disabling the sd bus voltage to sd card causing sd card timeout error. So we wait for a maximum of 1000msec to get the card detect state stable before we enable the sd bus voltage. This current fix is workaround for now, this needs to be analysed further. Zynqmp platform should behave the same as Versal, but we did not encounter this issue as of now. So we are fixing it for Versal only. Signed-off-by: T Karthik Reddy Signed-off-by: Ashok Reddy Soma Reviewed-by: Jaehoon Chung Signed-off-by: Michal Simek

mmc: zynq_sdhci: Move setting tapdelay code to driver

2021-08-26T06:08:01Z

Move tapdelay function calls to zynq_sdhci.c and make them static inline. zynqmp_tap_delay.h has function prototypes for the functions defined in tap_delays.c, which will not be needed anymore. Remove tap_delays.c and zynqmp_tap_delay.h files. Signed-off-by: Ashok Reddy Soma Signed-off-by: Michal Simek Reviewed-by: Jaehoon Chung