This series aims to address some critical bugs in the cadence qspi driver like the need to Flush the CMDCTRL reg after the execution due to a hardware limitation and also fixes the check conditions for DTR ops.
previously posted: https://lore.kernel.org/u-boot/20230323164408.1043725-1-d-gole@ti.com/
Changelog: * Preserve Apurva's authorship * Split the cmdctrl reg clearing patch into a seperate one * Address few other comments from Pratyush on the previous series
Logs (on AM62x SK EVM):
... U-Boot 2023.04-rc5-00589-g1a9171bfbc66 (Apr 12 2023 - 16:16:19 +0530)
SoC: AM62X SR1.0 HS-FS Model: Texas Instruments AM625 SK DRAM: 2 GiB Core: 50 devices, 20 uclasses, devicetree: separate MMC: mmc@fa10000: 0, mmc@fa00000: 1, mmc@fa20000: 2 Loading Environment from nowhere... OK In: serial@2800000 Out: serial@2800000 Err: serial@2800000 Net: eth0: ethernet@8000000port@1 Hit any key to stop autoboot: 0 => => sf probe SF: Detected s28hs512t with page size 256 Bytes, erase size 256 KiB, total 64 MiB => random $loadaddr 0x200000 2097152 bytes filled with random data => sf update $loadaddr 0x0 0x200000 device 0 offset 0x0, size 0x200000 2097152 bytes written, 0 bytes skipped in 13.365s, speed 160643 B/s => sf read 0x90000000 0x0 0x200000 device 0 offset 0x0, size 0x200000 SF: 2097152 bytes @ 0x0 Read: OK => cmp.b $loadaddr 0x90000000 0x200000 Total of 2097152 byte(s) were the same
local git log: ... 1a9171bfbc66 (HEAD -> next) spi: cadence-quadspi: Reset CMD_CTRL Reg on cmd r/w completion f60c2702c9df spi: cadence-quadspi: Use STIG mode for all ops with small payload f84f1b610f90 spi: cadence-quadspi: Fix check condition for DTR ops a25dcda452bf (origin/next) Revert "disk: Use a helper function to reduce duplication" ...
Apurva Nandan (2): spi: cadence-quadspi: Fix check condition for DTR ops spi: cadence-quadspi: Use STIG mode for all ops with small payload
Dhruva Gole (1): spi: cadence-quadspi: Reset CMD_CTRL Reg on cmd r/w completion
drivers/spi/cadence_qspi.c | 16 +++++++--- drivers/spi/cadence_qspi_apb.c | 56 +++++++++++++++++++++------------- 2 files changed, 46 insertions(+), 26 deletions(-)