Patrice Chotard d67c721ec5 spi: stm32-qspi: Optimize FIFO accesses using u16 or u32 ...

FIFO accesses uses u8 only for read/write.
In order to optimize throughput, add u16 or u32 read/write
accesses when possible.
Set FIFO threshold level value accordingly.

Test performed by writing and reading 64MB on sNOR on
stm32mp157c-ev1 board:

          before      after    ratio
Write :  428 KB/s   719 KB/s    +68%
Read  :  520 KB/s  3200 KB/s   +615%

Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>

2026-01-29 10:47:57 +01:00

..

adi_spi3.c

spi: Add support for ADI SC5XX-family processor SPI peripherals

2025-03-12 10:24:58 -06:00

airoha_snfi_spi.c

spi: airoha: en7523: workaround flash damaging if UART_TXD was short to GND

2025-11-18 20:07:41 +01:00

altera_spi.c

spi: altera_spi: Add missing <time.h> to altera_spi.c

2025-10-28 12:53:58 -06:00

apple_spi.c

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

2024-05-20 13:35:03 -06:00

atcspi200_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

ath79_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

atmel_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

atmel-quadspi.c

spi: atmel_qspi: fix race condition in transfer completion check

2025-08-13 12:59:02 +03:00

bcm63xx_hsspi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

bcm63xx_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

bcmbca_hsspi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

bcmstb_spi.c

common: Drop asm/global_data.h from common header

2021-02-02 15:33:42 -05:00

ca_sflash.c

Merge patch series "spi: Various Kconfig fixes"

2024-10-09 14:52:44 -06:00

cadence_ospi_versal.c

xilinx: versal: Get rid of xlnx-versal-power.h from bindings

2025-12-19 08:25:27 +01:00

cadence_qspi_apb.c

spi: cadence_qspi: Off by 1 in test for timeout

2025-10-28 10:27:40 -06:00

cadence_qspi.c

xilinx: versal: Get rid of xlnx-versal-power.h from bindings

2025-12-19 08:25:27 +01:00

cadence_qspi.h

spi: cadence: Remove cdns,is-dma DT property

2025-12-19 08:25:27 +01:00

cadence_xspi.c

spi: cadence: Add driver for xSPI

2025-12-01 13:57:32 +08:00

cadence_xspi.h

spi: cadence: Add driver for xSPI

2025-12-01 13:57:32 +08:00

cf_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

cv1800b_spif.c

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

2024-05-02 00:01:18 +08:00

davinci_spi.c

Merge patch series "spi-nor: Add parallel and stacked memories support"

2024-10-09 09:02:22 -06:00

designware_spi.c

drivers: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

2024-10-11 11:44:48 -06:00

exynos_spi.c

spi: exynos: Remove extra term from test

2025-09-03 19:32:38 +09:00

fsl_dspi.c

fsl_dspi: set scaler values for CS-SCK and SCK-CS delays

2025-08-27 15:53:25 +08:00

fsl_espi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

fsl_qspi.c

spi: fsl_qspi: Move AHB read buffer config after LUT

2025-04-25 08:52:59 -03:00

gxp_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

ich.c

spi: ich: Do not use uninitialised value

2025-10-28 10:33:00 -06:00

ich.h

x86: spl: Move priv/plat structs to headers

2021-01-05 12:24:41 -07:00

iproc_qspi.c

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

2024-05-20 13:35:03 -06:00

Kconfig

Merge patch series "Enable / require DEVRES for devm_.alloc usage outside xPL"

2026-01-09 10:19:57 -06:00

kirkwood_spi.c

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

2024-05-20 13:35:03 -06:00

Makefile

spi: designware: Allow disabling designware driver in SPL

2025-12-17 18:50:31 +08:00

meson_spifc_a1.c

treewide: Remove clk_free

2024-01-29 22:35:02 -05:00

meson_spifc.c

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

2024-05-20 13:35:03 -06:00

microchip_coreqspi.c

spi: coreqspi: add xfer function for PolarFire SoC

2025-07-17 14:37:36 +08:00

mpc8xx_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

mpc8xxx_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

mscc_bb_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

mt7620_spi.c

spi: add spi controller support for MediaTek MT7620 SoC

2021-01-24 21:39:26 +01:00

mt7621_spi.c

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

2024-05-20 13:35:03 -06:00

mtk_snfi_spi.c

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

2024-05-20 13:35:03 -06:00

mtk_snor.c

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

2024-05-20 13:35:03 -06:00

mtk_spim.c

spi: mtk_spim: check slave device mode in spi-mem's supports_op

2025-01-23 12:11:49 -06:00

mvebu_a3700_spi.c

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

2024-05-20 13:35:03 -06:00

mxc_spi.c

spi: mxc_spi: use proper clock for SPI bus

2024-12-23 08:08:34 -03:00

mxs_spi.c

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

2024-05-20 13:35:03 -06:00

npcm_fiu_spi.c

spi: npcm-fiu: Remove repeated test

2025-10-28 10:33:00 -06:00

npcm_pspi.c

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

2024-05-20 13:35:03 -06:00

nxp_fspi.c

spi: fspi: Logical or used instead of logical and

2025-10-28 10:33:00 -06:00

octeon_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

omap3_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

pic32_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

pl022_spi.c

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

2024-05-20 13:35:03 -06:00

renesas_rpc_spi.c

spi: renesas: Fix R-Car spelling

2024-12-11 08:36:24 +01:00

rk_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

rk_spi.h

…

rockchip_sfc.c

spi: rockchip_sfc: Support sclk_x2 version

2025-11-02 12:14:09 -06:00

sandbox_spi.c

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

2024-05-20 13:35:03 -06:00

sh_qspi.c

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

2024-05-20 13:35:03 -06:00

soft_spi.c

spi: soft_spi: Add support for SPI_3WIRE

2025-02-14 17:12:49 -06:00

spi-aspeed-smc.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-emul-uclass.c

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

2024-05-20 13:35:03 -06:00

spi-mem-nodm.c

Prepare v2024.01-rc3

2023-11-20 09:19:50 -05:00

spi-mem.c

spi: spi-mem: fix coverity report CID 537478

2025-11-18 20:07:41 +01:00

spi-mxic.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-qup.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-sifive.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-sn-f-ospi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-sunxi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-synquacer.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

spi-uclass.c

spi: spi-uclass: Use unwind goto

2025-10-28 10:33:00 -06:00

spi.c

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

2024-05-20 13:35:03 -06:00

stm32_ospi.c

spi: stm32-ospi: Increase read throughput in indirect mode

2026-01-29 10:47:57 +01:00

stm32_qspi.c

spi: stm32-qspi: Optimize FIFO accesses using u16 or u32

2026-01-29 10:47:57 +01:00

stm32_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

tegra20_sflash.c

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

2024-05-20 13:35:03 -06:00

tegra20_slink.c

spi: tegra20_slink: fix CS polarity setup

2025-04-12 09:42:35 +03:00

tegra114_spi.c

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

2024-05-20 13:35:03 -06:00

tegra210_qspi.c

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

2024-05-20 13:35:03 -06:00

tegra_spi.h

dm: treewide: Rename ..._platdata variables to just ..._plat

2020-12-13 16:51:09 -07:00

ti_qspi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

uniphier_spi.c

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

2024-05-20 13:35:03 -06:00

xilinx_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

zynq_qspi.c

mtd: spi-nor: Fix integer overflow in stacked memories support

2024-11-10 20:21:07 -06:00

zynq_spi.c

spi: spi-uclass: Read chipselect and restrict capabilities

2024-10-09 09:01:54 -06:00

zynqmp_gqspi.c

zynqmp_gqspi: update to log_debug

2025-01-14 08:33:31 +01:00