[U-Boot] [PATCH v2 0/4] mmc: sdhci: Add support for frequency constrained peripheral interfaces

Stefan Herbrechtsmeier stefan.herbrechtsmeier at weidmueller.de
Fri Nov 25 14:59:50 CET 2016


The sdhci controller assumes that the base clock frequency is fully
supported by the peripheral and doesn't support hardware limitations.
Distinguish between base clock of the host controller and maximal
supported peripheral clock frequency of the peripheral interface.
This is needed for the zynq platform to support two sdhci ports with
different IO routings.

Changes in v2:
- Remove unused index from get uart clock function
- Remove unused index from get sdio clock function
- Introduce common get clock function

Stefan Herbrechtsmeier (4):
  mmc: sdhci: Distinguish between base clock and maximum peripheral
    frequency
  serial: zynq: Remove unused index from get uart clock function
  mmc: zynq: Determine base clock frequency via clock framework
  mmc: zynq: Add fdt max-frequency support

 arch/arm/mach-zynq/clk.c              | 51 +++++++++++++++++++++++++++--------
 arch/arm/mach-zynq/include/mach/clk.h |  3 ++-
 drivers/mmc/atmel_sdhci.c             |  7 +++--
 drivers/mmc/bcm2835_sdhci.c           |  3 ++-
 drivers/mmc/ftsdc021_sdhci.c          |  3 ++-
 drivers/mmc/kona_sdhci.c              |  3 ++-
 drivers/mmc/msm_sdhci.c               |  2 ++
 drivers/mmc/mv_sdhci.c                |  3 ++-
 drivers/mmc/pci_mmc.c                 |  1 +
 drivers/mmc/pic32_sdhci.c             |  4 ++-
 drivers/mmc/rockchip_sdhci.c          |  4 +--
 drivers/mmc/s5p_sdhci.c               |  5 ++--
 drivers/mmc/sdhci.c                   | 28 ++++++++++---------
 drivers/mmc/spear_sdhci.c             |  3 ++-
 drivers/mmc/zynq_sdhci.c              | 40 ++++++++++++++++++++++++++-
 drivers/serial/serial_zynq.c          |  2 +-
 include/sdhci.h                       | 13 ++++-----
 17 files changed, 130 insertions(+), 45 deletions(-)

-- 
2.7.4



Kommanditgesellschaft - Sitz: Detmold - Amtsgericht Lemgo HRA 2790 - 
Komplementärin: Weidmüller Interface Führungsgesellschaft mbH - 
Sitz: Detmold - Amtsgericht Lemgo HRB 3924; 
Geschäftsführer: José Carlos Álvarez Tobar, Elke Eckstein, Dr. Peter Köhler, Jörg Timmermann;
USt-ID-Nr. DE124599660


More information about the U-Boot mailing list