On 04/10/2015 11:40 AM, Peter Griffin wrote:
Hi, This series adds sd/emmc support to the sdhci-st.c driver for stih407 family silicon. The changes mainly involve configuring some extra glue registers in the flashSS which configure the Arasan controller. This series also adds support for UHS modes for eMMC. To allow UHS HS200/SD104 modes to function correctly, due to the tight timing constriants, support for delay management is also added. Two types of delay management are supported, static delay management and dynamic delay management, this delay management is only available on eMMC pads on stih410 and later silicon. This series has been tested with stih410-b2120 revd on eMMC and sd, at various clock speeds. As part of this testing a bug was also found in the upstream flexgen clock set_rate implementation (now fixed upstream). max-frequency = 200Mhz /dev/mmcblk0p1: Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/secmax-frequency = 100Mhzroot@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 210 MB in 3.00 seconds = 70.00 MB/secmax-frequency = 50Mhzroot@debian-armhf:~# hdparm -t /dev/mmcblk0p1 /dev/mmcblk0p1: Timing buffered disk reads: 118 MB in 3.00 seconds = 39.28 MB/sec It has also been tested on stih416-b2020 to ensure we have caused no regressions. Finally the dt documentation has been updated to reflect the changes in the driver code. Intrestingly it seems we are the first upstream platform to be using some of the uhs bindings such as sd-uhs-sdr104. Changes since v4: - Fixup typo (Pete) Changes since v3: - Rebased on Ulf's mmc next branch (rc5 based) (Ulf) Changes since v2: - Some whitespace fixups (Max) - if (!ioaddr) suggestion (Max) - Add stih418-b2199 suport (Max) - Stih410 to STiH410 fixes (Max) - rebased on v4.0-rc6 (Pete) Changes since v1: - Partition the changes into smaller patches to aid review process (Ulf) Peter Griffin (9): mmc: sdhci-st: Add macros for register offsets and bitfields for mmcss glue regs mmc: sdhci-st: Add support for de-asserting reset signal and top regs resource mmc: sdhci-st: Add delay management functions for top registers (eMMC). mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue registers. mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function. mmc: sdhci-st: Update the quirks for this controller. mmc: sdhci-st: Update ST SDHCI binding documentation. ARM: STi: DT: STiH407: Add dt nodes for sdhci and emmc. ARM: STi: DT: STiH418: Add dt nodes for sdhci and emmc. Documentation/devicetree/bindings/mmc/sdhci-st.txt | 100 +++++- arch/arm/boot/dts/stih407-family.dtsi | 30 ++ arch/arm/boot/dts/stih410-b2120.dts | 10 + arch/arm/boot/dts/stih418-b2199.dts | 12 + arch/arm/boot/dts/stihxxx-b2120.dtsi | 8 + drivers/mmc/host/sdhci-st.c | 354 ++++++++++++++++++++- 6 files changed, 500 insertions(+), 14 deletions(-)
Patches 8 & 9 applied to STi DT branch. Thanks, Maxime -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
