u-boot.git/drivers/spi, branch v2024.07

Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""

2024-05-19T14:16:36Z

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman Signed-off-by: Tom Rini

spi: Remove and add needed includes

2024-05-07T14:00:56Z

Remove from this driver directory and when needed add missing include files directly. Reviewed-by: Cédric Le Goater Reviewed-by: William Zhang Signed-off-by: Tom Rini

spi: npcm_pspi: Reset HW in driver probe

2024-05-03T18:22:58Z

Reset HW to clear old status and use default data mode(8-bit). Signed-off-by: Jim Liu

spi: cv1800b: Add spi nor flash controller driver for cv1800b SoC

2024-05-01T16:01:18Z

Add spi nor flash controller driver for cv1800b SoC Signed-off-by: Kongyang Liu Reviewed-by: Leo Yu-Chi Liang

spi: mpc8xx: Set up speed as requested

2024-04-18T13:47:46Z

Set the speed requested through mpc8xx_spi_set_speed() instead of hardcoding a fixed speed. Signed-off-by: Christophe Leroy

spi: mpc8xx: Use 16 bit mode for large transfers with even size

2024-04-18T13:47:46Z

On CPM, the RISC core is a lot more efficiant when doing transfers in 16-bits chunks than in 8-bits chunks, but unfortunately the words need to be byte swapped. So, for large tranfers with an even size, allocate a temporary buffer and byte-swap data before and after transfer. This change allows setting higher speed for transfer. For instance on an MPC 8xx (CPM1 comms RISC processor), the documentation tells that transfer in byte mode at 1 kbit/s uses 0.200% of CPM load at 25 MHz while a word transfer at the same speed uses 0.032% of CPM load. This means the speed can be 6 times higher in word mode for the same CPM load. For small transfers, the load reduction is not worth the CPU load required to allocate the temporary buffer, so do it only when data size is over 64 bytes. Signed-off-by: Christophe Leroy

spi: mpc8xx: Allow transfer of more than MAX_BUFFER len

2024-04-18T13:47:46Z

Perform multiple transfer of size MAX_BUFFER when the data to be transferred is longer than MAX_BUFFER. Signed-off-by: Christophe Leroy

powerpc: 8xx: Set SDMA configuration register correcly

2024-04-18T13:47:46Z

SDMA configuration register needs to be set up only once and doesn't belong to drivers. Also, the value to be used is different on mpc885. So do the init in cpu_init_f() with 0x40 for mpc885 and 0x1 for others. Signed-off-by: Christophe Leroy

spi: mpc8xx: Fix transfert when input or output buffer is NULL

2024-04-18T13:47:46Z

xfer ops can be passed a NULL input or output buffer. At the time being the driver ignores it and overwrites memory at 0. Define a dummy buffer and use it when either input or output buffer is NULL. Bail out when both are NULL as it shouldn't. Also increase MAX_BUFFER len to 32k as the current is pretty low. Signed-off-by: Christophe Leroy

spi: mpc8xx: Add GPIO dependency

2024-04-18T13:47:46Z

Since commit 773ad4ebb1d6 ("spi, mpc8xx: Add support for chipselect via GPIO and fixups"), DM_GPIO is required for 8xx SPI. Add the missing dependency to avoid build failures. Fixes: 773ad4ebb1d6 ("spi, mpc8xx: Add support for chipselect via GPIO and fixups") Signed-off-by: Christophe Leroy