From de705fa1f470683b9ea4ad91c1a9ae5a98942612 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 19 Apr 2017 19:27:28 -0700 Subject: drivers/spi: Re-factor spi_crop_chunk spi_crop_chunk is a property of the SPI controller since it depends upon the maximum transfer size that is supported by the controller. Also, it is possible to implement this within spi-generic layer by obtaining following parameters from the controller: 1. max_xfer_size: Maximum transfer size supported by the controller (Size of 0 indicates invalid size, and unlimited transfer size is indicated by UINT32_MAX.) 2. deduct_cmd_len: Whether cmd_len needs to be deducted from the max_xfer_size to determine max data size that can be transferred. (This is used by the amd boards.) Change-Id: I81c199413f879c664682088e93bfa3f91c6a46e5 Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/19386 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) Tested-by: coreboot org --- src/soc/intel/common/block/fast_spi/fast_spi_flash.c | 1 + src/soc/intel/common/block/gspi/gspi.c | 1 + 2 files changed, 2 insertions(+) (limited to 'src/soc/intel/common/block') diff --git a/src/soc/intel/common/block/fast_spi/fast_spi_flash.c b/src/soc/intel/common/block/fast_spi/fast_spi_flash.c index 27a4bb7886..d56b33fa15 100644 --- a/src/soc/intel/common/block/fast_spi/fast_spi_flash.c +++ b/src/soc/intel/common/block/fast_spi/fast_spi_flash.c @@ -364,4 +364,5 @@ static int fast_spi_flash_ctrlr_setup(const struct spi_slave *dev) const struct spi_ctrlr fast_spi_flash_ctrlr = { .setup = fast_spi_flash_ctrlr_setup, + .max_xfer_size = SPI_CTRLR_DEFAULT_MAX_XFER_SIZE, }; diff --git a/src/soc/intel/common/block/gspi/gspi.c b/src/soc/intel/common/block/gspi/gspi.c index 51e8ef54e1..8e527ed0b1 100644 --- a/src/soc/intel/common/block/gspi/gspi.c +++ b/src/soc/intel/common/block/gspi/gspi.c @@ -611,4 +611,5 @@ const struct spi_ctrlr gspi_ctrlr = { .release_bus = gspi_cs_deassert, .setup = gspi_ctrlr_setup, .xfer = gspi_ctrlr_xfer, + .max_xfer_size = SPI_CTRLR_DEFAULT_MAX_XFER_SIZE, }; -- cgit v1.2.3