| Message ID | 20190301191236.8028-1-simon.k.r.goldschmidt@gmail.com |
|---|---|
| Headers | show |
| Series | arm: socfpga: implement proper peripheral reset handling | expand |
On 3/1/19 8:12 PM, Simon Goldschmidt wrote: > This series implements peripheral reset handling for socfpga gen5. > > It moves from enabling all peripherals during SPL startup to using the > socfpga reset driver from all peripherals and enabling peripherals when > they are used. > > As Linux cannot even handle this in 4.20, the reset driver implements a > compatibility mode where it takes all peripherals out of reset before > jumping to the OS if an environment variable "socfpga_legacy_reset_compat=1" > is found. This is enabled by default for socfpga gen5 boards, but should > be moved to default off in the near future once a Linux kernel supports > reset handling for all drivers. > > Changes in v4: > - added patch that renames 'membase' to 'modrst_base' > > Changes in v3: > - centralize u-boot,dem-pre-reloc for soc, rst and sdr into one common file > - rename env var to socfpga_legacy_reset_compat > - add env var to CONFIG_EXTRA_ENV_SETTINGS without further ifdefs > - changed the order of patches to keep things bisectable > - fix falcon mode in SPL should work, too > - change env var name "socfpga_permodrst_ungate" to > "socfpga_legacy_reset_compat" > - in compat mode, don't reset peripherals once they are enabled > - add DM_FLAG_OS_PREPARE flag > - add DM_FLAG_OS_PREPARE flag > - keep the call to enable fpga bridges in SPL > > Changes in v2: > - cleanly merged Linux dts (moved change of SDR controller base address > to a separate patch) > - this patch is new in v2 > - moved from Kernel option "OLD_SOCFPGA_KERNEL_COMPAT" to environment > variable "socfpga_permodrst_ungate" > - port DDR driver to DM UCLASS_RAM > - don't change DDR calibration training driver (code got too big) > - use reset.h code instead of socfpga_per_reset() > - fix copy/paste issues > - add .remove callback to release the resets > - add .remove callback to release the resets > - removed Kconfig option OLD_SOCFPGA_KERNEL_COMPAT since compatibility > now uses an environment variable > > Simon Goldschmidt (9): > arm: socfpga: gen5: sync devicetrees to Linux > arm: socfpga: gen5: add reset & sdr node to SPL devicetrees > reset: socfpga: rename membase ptr to modrst_base > arm: socfpga: gen5: deassert peripheral reset by default > reset: socfpga: add reset handling for old kernels > arm: socfpga: move gen5 SDR driver to DM > mtd: rawnand: denali: add reset handling > spi: cadence_qspi: add reset handling > arm: socfpga: implement proper peripheral reset > > arch/arm/Kconfig | 2 + > arch/arm/dts/socfpga-common-u-boot.dtsi | 19 +++ > arch/arm/dts/socfpga.dtsi | 23 ++- > arch/arm/dts/socfpga_arria5_socdk-u-boot.dtsi | 6 +- > arch/arm/dts/socfpga_cyclone5_dbm_soc1.dts | 5 +- > .../socfpga_cyclone5_de0_nano_soc-u-boot.dtsi | 6 +- > arch/arm/dts/socfpga_cyclone5_de10_nano.dts | 5 +- > arch/arm/dts/socfpga_cyclone5_de1_soc.dts | 5 +- > arch/arm/dts/socfpga_cyclone5_is1.dts | 5 +- > .../dts/socfpga_cyclone5_socdk-u-boot.dtsi | 6 +- > .../dts/socfpga_cyclone5_sockit-u-boot.dtsi | 6 +- > .../dts/socfpga_cyclone5_socrates-u-boot.dtsi | 6 +- > arch/arm/dts/socfpga_cyclone5_socrates.dts | 2 - > arch/arm/dts/socfpga_cyclone5_sr1500.dts | 5 +- > .../socfpga_cyclone5_vining_fpga-u-boot.dtsi | 6 +- > .../mach-socfpga/include/mach/sdram_gen5.h | 4 - > arch/arm/mach-socfpga/misc_gen5.c | 10 -- > arch/arm/mach-socfpga/spl_gen5.c | 38 ++--- > drivers/ddr/altera/Kconfig | 1 + > drivers/ddr/altera/sdram_gen5.c | 143 ++++++++++++++++-- > drivers/ddr/altera/sequencer.c | 9 +- > drivers/ddr/altera/sequencer.h | 35 +++++ > drivers/mtd/nand/raw/denali.h | 2 + > drivers/mtd/nand/raw/denali_dt.c | 15 ++ > drivers/reset/reset-socfpga.c | 55 ++++++- > drivers/spi/cadence_qspi.c | 17 +++ > drivers/spi/cadence_qspi.h | 4 + > include/configs/socfpga_common.h | 1 + > 28 files changed, 328 insertions(+), 113 deletions(-) > create mode 100644 arch/arm/dts/socfpga-common-u-boot.dtsi > Applied all to socfpga/next, thanks !