Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-03 19:55:31 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
b1258105f9
linux-stable/drivers/spi
History
Alexander Usyskin b1258105f9
spi: intel: Add protected and locked attributes 
The manufacturing access to the PCH/SoC SPI device is traditionally
performed via userspace driver accessing registers via /dev/mem but due
to security concerns /dev/mem access is being much restricted, hence the
reason for utilizing dedicated Intel PCH/SoC SPI controller driver,
which is already implemented in the Linux kernel.

Intel PCH/SoC SPI controller protects the flash storage via two
mechanisms one is the via region protection registers and second via
BIOS lock. The BIOS locks only the BIOS regions usually 0 and/or 6.

The device always boots with BIOS lock set, but during manufacturing the
BIOS lock has to be lifted in order to enable the write access. This can
be done by passing "writeable=1" in the command line when the driver is
loaded. This "locked" state is exposed through new sysfs attributes
(intel_spi_locked, intel_spi_bios_locked).

Second, also the region protection status is exposed via sysfs attribute
(intel_spi_protected) as the manufacturing will need the both files in
order to validate that the device is properly sealed.

Includes code written by Tamar Mashiah.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Co-developed-by: Tomas Winkler <tomasw@gmail.com>
Signed-off-by: Tomas Winkler <tomasw@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://patch.msgid.link/20241009062244.2436793-1-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-10-09 14:41:00 +01:00
..
atmel-quadspi.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
internals.h spi: Rework per message DMA mapped flag to be per transfer 2024-06-10 12:49:03 +01:00
Kconfig spi: cadence: Add 64BIT Kconfig dependency 2024-07-30 14:23:14 +01:00
Makefile spi: add ch341a usb2spi driver 2024-07-08 17:01:10 +01:00
spi-airoha-snfi.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-altera-core.c spi: add missing MODULE_DESCRIPTION() macros 2024-06-10 12:49:05 +01:00
spi-altera-dfl.c spi: spi-altera-dfl: switch to use modern name 2022-12-29 13:22:04 +00:00
spi-altera-platform.c spi: altera: Drop unneeded MODULE_ALIAS 2024-04-15 10:17:25 +09:00
spi-amd.c spi: spi_amd: Add HIDDMA basic read support 2024-09-30 01:11:56 +02:00
spi-amlogic-spifc-a1.c spi: amlogic-spifc-a1: switch to use devm_spi_alloc_host() 2023-08-14 13:10:48 +01:00
spi-ar934x.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-armada-3700.c spi: armada-3700: use 'time_left' variable with wait_for_completion_timeout() 2024-04-30 23:57:26 +09:00
spi-aspeed-smc.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-at91-usart.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-ath79.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-atmel.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-au1550.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-axi-spi-engine.c Add support for AD4000 series of ADCs 2024-07-29 16:48:44 +01:00
spi-bcm63xx-hsspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-bcm63xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-bcm2835.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-bcm2835aux.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-bcm-qspi.c spi: bcm-qspi: fix SFDP BFPT read by usig mspi read 2024-01-23 13:28:03 +00:00
spi-bcm-qspi.h spi: bcm-qspi: Make bcm_qspi_remove() return void 2022-10-18 19:16:53 +01:00
spi-bcmbca-hsspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-bitbang-txrx.h spi: Get rid of old SPI_MASTER_NO_TX & SPI_MASTER_NO_RX 2023-07-11 13:41:20 +01:00
spi-bitbang.c spi: bitbang: Implement support for MOSI idle state configuration 2024-07-29 01:19:52 +01:00
spi-brcmstb-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-butterfly.c parport: Remove parport_driver.devmodel 2024-07-03 16:44:22 +02:00
spi-cadence-quadspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-cadence-xspi.c spi: cadence: Make cdns_mrvl_xspi_clk_div_list static 2024-08-19 13:11:18 +01:00
spi-cadence.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-cavium-octeon.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-cavium-thunderx.c spi: spi-cavium-thunderx: Use helper function devm_clk_get_enabled() 2023-09-11 01:31:59 +01:00
spi-cavium.c spi: cavium: Follow renaming of SPI "master" to "controller" 2024-02-08 11:54:50 +00:00
spi-cavium.h spi: cavium: Follow renaming of SPI "master" to "controller" 2024-02-08 11:54:50 +00:00
spi-ch341.c spi: ch341: switch to use devm_spi_alloc_host() 2024-09-30 01:12:04 +02:00
spi-clps711x.c spi: clps711x: switch to use modern name 2023-08-07 14:38:28 +01:00
spi-coldfire-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-cs42l43.c spi: cs42l43: Add speaker id support to the bridge configuration 2024-06-20 21:10:15 +01:00
spi-davinci.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-dln2.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-dw-bt1.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-dw-core.c spi: dw: Use new spi_xfer_is_dma_mapped() helper 2024-06-10 12:48:58 +01:00
spi-dw-dma.c spi: dw: remove redundant assignment to variable len 2024-02-15 14:17:19 +00:00
spi-dw-mmio.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-dw-pci.c
spi-dw.h spi: dw: Convert dw_spi::num_cs to u32 2024-05-03 11:09:24 +09:00
spi-ep93xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-falcon.c spi: falcon: switch to use modern name 2023-08-14 13:10:51 +01:00
spi-fsi.c spi: fsi: switch to use spi_alloc_host() 2023-08-14 13:10:52 +01:00
spi-fsl-cpm.c spi: add missing MODULE_DESCRIPTION() macros 2024-06-10 12:49:05 +01:00
spi-fsl-cpm.h spi: fsl: remove is_dma_mapped checks 2024-03-28 21:09:46 +00:00
spi-fsl-dspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-fsl-espi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-fsl-lib.c spi: add missing MODULE_DESCRIPTION() macros 2024-06-10 12:49:05 +01:00
spi-fsl-lib.h spi: fsl: Remove unused extern declarations 2023-07-25 17:40:28 +01:00
spi-fsl-lpspi.c spi: spi-fsl-lpspi: Some calculation improvements 2024-10-01 12:16:13 +01:00
spi-fsl-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-fsl-spi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-fsl-spi.h
spi-geni-qcom.c spi: geni-qcom: Use devm functions to simplify code 2024-09-12 12:39:04 +01:00
spi-gpio.c spi: spi-gpio: Add support for MOSI idle state configuration 2024-07-29 01:19:53 +01:00
spi-gxp.c spi: spi-gxp: BUG: Correct spi write return value 2023-09-27 17:06:36 +02:00
spi-hisi-kunpeng.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-hisi-sfc-v3xx.c spi: fix typo in the comment 2024-09-30 01:12:21 +02:00
spi-img-spfi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-imx.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-ingenic.c spi: ingenic: Use new spi_xfer_is_dma_mapped() helper 2024-06-10 12:48:59 +01:00
spi-intel-pci.c spi: intel: Add protected and locked attributes 2024-10-09 14:41:00 +01:00
spi-intel-platform.c spi: intel: Add protected and locked attributes 2024-10-09 14:41:00 +01:00
spi-intel.c spi: intel: Add protected and locked attributes 2024-10-09 14:41:00 +01:00
spi-intel.h spi: intel: Add protected and locked attributes 2024-10-09 14:41:00 +01:00
spi-iproc-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-jcore.c spi: jcore: switch to use modern name 2023-08-14 13:11:05 +01:00
spi-lantiq-ssc.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-ljca.c spi: ljca: switch to use devm_spi_alloc_host() 2023-12-11 12:55:16 +00:00
spi-lm70llp.c parport: Remove parport_driver.devmodel 2024-07-03 16:44:22 +02:00
spi-loongson-core.c spi: loongson: add bus driver for the loongson spi controller 2023-07-31 15:57:09 +01:00
spi-loongson-pci.c spi: loongson: add bus driver for the loongson spi controller 2023-07-31 15:57:09 +01:00
spi-loongson-plat.c spi: loongson: add bus driver for the loongson spi controller 2023-07-31 15:57:09 +01:00
spi-loongson.h spi: loongson: add bus driver for the loongson spi controller 2023-07-31 15:57:09 +01:00
spi-loopback-test.c spi: loopback-test: drop driver owner assignment 2024-03-28 13:58:40 +00:00
spi-lp8841-rtc.c spi: lp-8841: switch to use modern name 2023-09-11 01:31:31 +01:00
spi-mem.c spi: Fix error code checking in spi_mem_exec_op() 2024-03-14 14:14:20 +00:00
spi-meson-spicc.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-meson-spifc.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-microchip-core-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-microchip-core.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mpc52xx-psc.c spi: fix typo in the comment 2024-09-30 01:12:21 +02:00
spi-mpc52xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mpc512x-psc.c spi: mpc512x-psc: switch to use modern name 2023-09-11 01:31:35 +01:00
spi-mt65xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mt7621.c spi: mt7621: allow GPIO chip select lines 2024-03-25 15:03:02 +00:00
spi-mtk-nor.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mtk-snfi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mux.c spi: mux: set ctlr->bits_per_word_mask 2024-07-09 17:42:33 +01:00
spi-mxic.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-mxs.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-npcm-fiu.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-npcm-pspi.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-nxp-fspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-oc-tiny.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-omap2-mcspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-omap-uwire.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-orion.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-pci1xxxx.c spi: pci1xxxx: Use new spi_xfer_is_dma_mapped() helper 2024-06-10 12:49:01 +01:00
spi-pic32-sqi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-pic32.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-pl022.c spi: fix typo in the comment 2024-09-30 01:12:21 +02:00
spi-ppc4xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-pxa2xx-dma.c spi: pxa2xx: Remove DMA parameters from struct chip_data 2024-05-03 11:11:36 +09:00
spi-pxa2xx-pci.c spi: Revert "spi: Insert the missing pci_dev_put()before return" 2024-09-03 12:37:20 +01:00
spi-pxa2xx-platform.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-pxa2xx.c spi: pxa2xx: Move PM runtime handling to the glue drivers 2024-08-22 13:34:06 +01:00
spi-pxa2xx.h spi: pxa2xx: Do not override dev->platform_data on probe 2024-08-22 13:34:05 +01:00
spi-qcom-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-qup.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-rb4xx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-realtek-rtl.c spi: realtek-rtl: switch to use devm_spi_alloc_host() 2023-08-21 14:29:28 +01:00
spi-rockchip-sfc.c Improve error handling in Rockchip SPI drivers 2024-09-30 22:44:35 +01:00
spi-rockchip.c Improve error handling in Rockchip SPI drivers 2024-09-30 22:44:35 +01:00
spi-rpc-if.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-rspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-rzv2m-csi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-s3c64xx.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-sc18is602.c spi: sc18is602: switch to use modern name 2023-08-21 14:29:33 +01:00
spi-sh-hspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sh-msiof.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-sh-sci.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sh.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sifive.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-slave-mt27xx.c spi: replace and remove 2024-09-30 22:43:40 +01:00
spi-slave-system-control.c spi: slave-system-control: switch to use spi_target_abort() 2024-09-10 12:41:38 +01:00
spi-slave-time.c spi: slave-time: switch to use spi_target_abort() 2024-09-10 12:41:37 +01:00
spi-sn-f-ospi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sprd-adi.c spi: sprd-adi: switch to use spi_alloc_host() 2023-12-11 12:54:53 +00:00
spi-sprd.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-st-ssc4.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-stm32-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-stm32.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sun4i.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sun6i.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-sunplus-sp7021.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-synquacer.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-tegra20-sflash.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-tegra20-slink.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-tegra114.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-tegra210-quad.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-test.h
spi-ti-qspi.c spi: spi-ti-qspi: remove redundant assignment to variable ret 2024-10-02 19:33:04 +01:00
spi-tle62x0.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
spi-topcliff-pch.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-uniphier.c Linux 6.12-rc2 2024-10-07 14:53:15 +01:00
spi-wpcm-fiu.c spi: wpcm-fiu: Simplify with dev_err_probe() 2024-08-28 22:22:24 +01:00
spi-xcomm.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
spi-xilinx.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-xlp.c spi: xlp: use 'time_left' variable with wait_for_completion_timeout() 2024-04-30 23:57:32 +09:00
spi-xtensa-xtfpga.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-zynq-qspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi-zynqmp-gqspi.c spi: Switch back to struct platform_driver::remove() 2024-09-30 01:12:23 +02:00
spi.c spi: Provide defer reason if getting irq during probe fails 2024-10-04 13:04:05 +01:00
spidev.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00