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54a78cbdbe
u-boot/drivers
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Masahiro Yamada 54a78cbdbe mmc: sdhci-cadence: send tune request twice to work around errata 
Cadence sent out an errata report to their customers of this IP.
This errata is not so severe, but the tune request should be sent
twice to avoid the potential issue.

Quote from the report:

Problem Summary
---------------
The IP6116 SD/eMMC PHY design has a timing issue on receive data path.
This issue may lead to an incorrect values of read/write pointers of
the synchronization FIFO. Such a situation can happen at the SDR104
and HS200 tuning procedure when the PHY is requested to change a phase
of sampling clock when moving to the next tuning iteration.

Workarounds
-----------
The following are valid workarounds to resolve the issue:

1. In eMMC mode, software sends tune request twice instead of once at
   each iteration. This means that the clock phase is not changed on
   the second request so there is no potential for clock instability.
2. In SD mode, software must not use the hardware tuning and instead
   perform an almost identical procedure to eMMC, using the HRS34 Tune
   Force register.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-17 14:55:04 +08:00
..
adc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
ata ata: fsl_sata: Continue probing other sata port when failed current port. 2020-01-08 09:27:44 -05:00
axi dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
bios_emulator bios_emulator: remove stray break 2019-08-09 22:24:02 +08:00
block dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
board drivers: board: Add get_fit_loadable() 2020-01-07 11:13:24 -05:00
bootcount bootcount: add a DM i2c eeprom backing store for bootcount 2020-01-10 10:25:13 -05:00
cache common: Move hang() to the same header as panic() 2020-01-24 23:06:49 +05:30
clk - add DH Electronics DHCOM SoM and PDK2 board 2020-02-14 07:31:47 -05:00
core sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
cpu Move strtomhz() to vsprintf.h 2019-12-02 18:23:09 -05:00
crypto crypto: make mod_exp_sw() static 2020-01-25 12:04:36 -05:00
ddr sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
demo SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
dfu dm: core: Require users of devres to include the header 2020-02-05 19:33:46 -07:00
dma dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
fastboot fastboot: mt85xx: add command to flash/erase emmc hwpart 2020-01-25 12:04:36 -05:00
firmware dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
fpga dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
gpio sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
hwspinlock dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
i2c sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
input input: Move input.o to be built only in some cases 2019-11-19 17:43:04 -05:00
led dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
mailbox dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
memory SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
misc sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
mmc mmc: sdhci-cadence: send tune request twice to work around errata 2020-02-17 14:55:04 +08:00
mtd dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
net sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
nvme dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pch x86: Allow removal of standard PCH drivers 2019-12-15 11:44:16 +08:00
pci dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pci_endpoint pci_ep: Fix Coverity warning 2019-08-07 15:31:04 -04:00
phy dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
pinctrl pinctrl: stmfx: update the result type of dm_i2c_reg_read 2020-02-13 18:47:00 +01:00
power sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
pwm pwm: rk_pwm: Make PWM driver to support all Rockchip Socs 2019-12-06 00:06:23 +08:00
qe crc32: Use the crc.h header for crc functions 2019-12-02 18:23:08 -05:00
ram ram: rockchip: Fix Kconfig dependency for RAM_ROCKCHIP_DEBUG 2020-02-13 10:10:50 -05:00
remoteproc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
reset sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
rng lib: Kconfig dependencies for pseudo-random library 2020-01-25 12:04:36 -05:00
rtc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
scsi scsi: Add dma direction member to command structure 2019-10-23 20:47:12 -04:00
serial sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
smem dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
soc dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
sound dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
spi dm: core: Drop the inclusion of linux/compat.h in dm.h 2020-02-05 21:48:22 -07:00
spmi dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
sysreset dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
tee dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
thermal thermal: ti-bandgap: Fix adc value datatype 2020-01-20 10:10:28 +05:30
timer dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
tpm sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
ufs dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
usb dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
video sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
virtio dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
w1 dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
w1-eeprom dm: core: Create a new header file for 'compat' features 2020-02-05 19:33:46 -07:00
watchdog sandbox conversion to SDL2 2020-02-11 10:58:41 -05:00
Kconfig dm: rng: Add random number generator(rng) uclass 2020-01-07 18:08:21 +01:00
Makefile Kconfig: Rename CONFIG_SPL_DMA_SUPPORT to CONFIG_SPL_DMA 2020-01-15 19:50:27 -05:00