u-boot.git/drivers/mmc, branch v2025.04

mmc: Fix size calculation for sector addressed MMC version 4

2025-02-24T20:16:28Z

For eMMC v4 and newer that is smaller than 2 GiB, the JEDEC JESD84-B51 section 6.2.4 Configure partitions indicates that EXT_CSD SEC_COUNT should not be used to determine device size, and instead device size should be calculated from C_SIZE and C_SIZE_MULT. This is not exactly accurate, the 2 GiB limit is not a hard line, there are eMMC devices which are smaller than 2 GiB and still require device size to be determined from EXT_CSD SEC_COUNT. The hard line is instead OCR HCS bit, which indicates whether the device is byte or sector addressed, the former applies to most devices below 2 GiB, and the later applies mostly to devices above 2 GiB. However, there are a couple of devices which are smaller than 2 GiB and still set the OCR HCS bit to indicate they are sector addressed, and therefore the size calculation for those devices should also use EXT_CSD SEC_COUNT . Use mmc->high_capacity flag to discern the devices instead of arbitrary 2 GiB limit. The mmc->high_capacity flag reflects the OCR HCS bit state. Fixes: 639b7827d1ca ("mmc: fix the condition for MMC version 4") Signed-off-by: Marek Vasut

mmc: Allow controlling DM_MMC for VPL builds

2025-02-03T22:00:42Z

VPL may want to use driver model for MMC even if TPL does not. Update the rule in this driver to support that. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

mmc: mediatek: add support for MediaTek MT7987 SoCs

2025-01-30T20:35:14Z

This patch adds eMMC/SD support for MT7987 SoC Signed-off-by: Weijie Gao

blk: Make block subsystems select BLK

2025-01-21T01:26:54Z

The BLK symbol has a few meanings, one of which is that it controls the driver model portion of a "block device". Rather than having this hidden symbol be "default y if ..." it should be select'd by the various block subsystems. Symbols such as PVBLOCK which already select'd BLK are unchanged". Reviewed-by: Peter Robinson Reviewed-by: Quentin Schulz Signed-off-by: Tom Rini

drivers/mmc/Kconfig: Make DM_MMC a hidden symbol

2025-01-21T01:26:25Z

At this point in time, DM is always enabled. So if MMC is enabled, it should select DM_MMC. No drivers need to depend on DM_MMC being enabled now, so remove that from dependency lists. This now means that a number of platforms which select'd DM_MMC need to select MMC instead. This also fixes a migration problem with espresso7420 in that MMC is built again with the platform. Reviewed-by: Peter Robinson Signed-off-by: Tom Rini

drivers/mmc/Kconfig: Remove extraneous BLK dependencies

2025-01-21T01:19:43Z

At this point in time, we know that with the MMC symbol enabled we will always also have the BLK symbol enabled, so we do not need to list that as a dependency for MMC drivers. Reviewed-by: Jaehoon Chung Reviewed-by: Quentin Schulz Signed-off-by: Tom Rini

Merge tag 'v2025.01-rc5' into next

2024-12-26T04:31:04Z

Prepare v2025.01-rc5

mmc: snps_sdhci: Add sdhci driver support for TH1520 SoC

2024-12-18T05:19:16Z

Add support for DesignWare SDHCI host controller on Alibaba TH1520 SoC Signed-off-by: Maksim Kiselev Tested-by: Heinrich Schuchardt

mmc: dw_mmc: Add "starfive, jh7110-mmc" compatible to match upstream DT

2024-12-18T05:19:15Z

Make the U-Boot JH7110 MMC driver compatible with upstream DT. Reviewed-by: Jaehoon Chung Signed-off-by: Hal Feng

mmc: Fix potential timer value truncation

2024-12-16T02:24:42Z

On 64bit systems the timer value might be truncated to a 32bit value causing malfunctions. For example on ARM the timer might start from 0 again only after a cold reset. The 32bit overflow occurs after a bit more than 49 days (1000 Hz counter) so booting after that time may lead to a surprise because the board might become stuck requiring a cold reset. Signed-off-by: Ronald Wahl Cc: Peng Fan Cc: Jaehoon Chung Reviewed-by: Jaehoon Chung