Message ID | 20231018213328.40131-1-amit.kumar-mahapatra@amd.com |
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Wed, 18 Oct 2023 16:33:30 -0500 From: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> To: <broonie@kernel.org>, <tudor.ambarus@linaro.org>, <pratyush@kernel.org>, <miquel.raynal@bootlin.com>, <richard@nod.at>, <vigneshr@ti.com> CC: <linux-spi@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <michael@walle.cc>, <linux-mtd@lists.infradead.org>, <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <claudiu.beznea@tuxon.dev>, <michal.simek@amd.com>, <linux-arm-kernel@lists.infradead.org>, <git@amd.com>, <amitrkcian2002@gmail.com>, <akumarma@amd.com>, Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> Subject: [PATCH v9 0/8] spi: Add support for stacked/parallel memories Date: Thu, 19 Oct 2023 03:03:20 +0530 Message-ID: <20231018213328.40131-1-amit.kumar-mahapatra@amd.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A0FB:EE_|PH0PR12MB7863:EE_ X-MS-Office365-Filtering-Correlation-Id: ec7b64d6-4a11-4834-0901-08dbd021e2ed X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Series |
spi: Add support for stacked/parallel memories
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Message
Mahapatra, Amit Kumar
Oct. 18, 2023, 9:33 p.m. UTC
This patch is in the continuation to the discussions which happened on 'commit f89504300e94 ("spi: Stacked/parallel memories bindings")' for adding dt-binding support for stacked/parallel memories. This patch series updated the spi-nor, spi core and the AMD-Xilinx GQSPI driver to add stacked and parallel memories support. The first nine patches https://lore.kernel.org/all/20230119185342.2093323-1-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-2-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-3-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-4-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-5-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-6-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-7-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-8-amit.kumar-mahapatra@amd.com/ https://lore.kernel.org/all/20230310173217.3429788-9-amit.kumar-mahapatra@amd.com/ of the previous series got applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next But the rest of the patches in the series did not get applied as failure was reported for spi driver with GPIO CS, so send the remaining patches in the series after rebasing it on top of for-next branch and fixing the issue. CS GPIO is not tested due to unavailability of necessary hardware setup. --- BRANCH: for-next Changes in v9: - Updated 1/8 patch description to add an high-level overview of parallel(multi-cs) & stacked design. - Initialized all unused CS to 0xFF. - Moved CS check from spi_add_device() to __spi_add_device(). - Updated __spi_add_device() to check to make sure that multiple logical CS don't map to the same physical CS and same physical CS doesn't map to different logical CS. - Updated 1/8, 5/8 & 7/8 to support arbitrary number of flash devices connected in parallel or stacked mode. - Updated documentation for chip_select. - Added a new spi-nor structure member nor->num_flash to keep track of the number of flashes connected. - Added a new patch in the series 4/8 to move write_enable call just before spi_mem ops call in SPI-NOR. - Added comments in SPI core & SPI-NOR. - Rebased the patch series on top of the latest for-next branch. Changes in v8: - Updated __spi_add_device() and spi_set_cs() to fix spi driver failure with GPIO CS. - Rebased the patch series on top of latest for-next branch and fixed merge conflicts. - Updated cover letter description to add information regarding GPIO CS testing and request Stefan to provide his Tested-by tag for 1/7 patch. - Updated 1/7 patch description. Changes in v7: - Updated spi_dev_check() to avoid failures for spi driver GPIO CS and moved the error message from __spi_add_device() to spi_dev_check(). - Resolved code indentation issue in spi_set_cs(). - In spi_set_cs() call spi_delay_exec( ) once if the controller supports multi cs with both the CS backed by GPIO. - Updated __spi_validate()to add checks for both the GPIO CS. - Replaced cs_index_mask bit mask with SPI_CS_CNT_MAX. - Updated struct spi_controller to represent multi CS capability of the spi controller through a flag bit SPI_CONTROLLER_MULTI_CS instead of a boolen structure member "multi_cs_cap". - Updated 1/7 patch description . Changes in v6: - Rebased on top of latest v6.3-rc1 and fixed merge conflicts in spi-mpc512x-psc.c, sfdp.c, spansion.c files and removed spi-omap-100k.c. - Updated spi_dev_check( ) to reject new devices if any one of the chipselect is used by another device. Changes in v5: - Rebased the patches on top of v6.3-rc1 and fixed the merge conflicts. - Fixed compilation warnings in spi-sh-msiof.c with shmobile_defconfig Changes in v4: - Fixed build error in spi-pl022.c file - reported by Mark. - Fixed build error in spi-sn-f-ospi.c file. - Added Reviewed-by: Serge Semin <fancer.lancer@gmail.com> tag. - Added two more patches to replace spi->chip_select with API calls in mpc832x_rdb.c & cs35l41_hda_spi.c files. Changes in v3: - Rebased the patches on top of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next - Added a patch to convert spi_nor_otp_region_len(nor) & spi_nor_otp_n_regions(nor) macros into inline functions - Added Reviewed-by & Acked-by tags Changes in v2: - Rebased the patches on top of v6.2-rc1 - Created separate patch to add get & set APIs for spi->chip_select & spi->cs_gpiod, and replaced all spi->chip_select and spi->cs_gpiod references with the API calls. - Created separate patch to add get & set APIs for nor->params. --- Amit Kumar Mahapatra (8): spi: Add multi-cs memories support in SPI core mtd: spi-nor: Convert macros with inline functions mtd: spi-nor: Add APIs to set/get nor->params mtd: spi-nor: Move write enable inside specific write & erase APIs mtd: spi-nor: Add stacked memories support in spi-nor spi: spi-zynqmp-gqspi: Add stacked memories support in GQSPI driver mtd: spi-nor: Add parallel memories support in spi-nor spi: spi-zynqmp-gqspi: Add parallel memories support in GQSPI driver drivers/mtd/spi-nor/atmel.c | 17 +- drivers/mtd/spi-nor/core.c | 685 +++++++++++++++++++++++++------ drivers/mtd/spi-nor/core.h | 8 + drivers/mtd/spi-nor/debugfs.c | 4 +- drivers/mtd/spi-nor/gigadevice.c | 4 +- drivers/mtd/spi-nor/issi.c | 11 +- drivers/mtd/spi-nor/macronix.c | 10 +- drivers/mtd/spi-nor/micron-st.c | 35 +- drivers/mtd/spi-nor/otp.c | 48 ++- drivers/mtd/spi-nor/sfdp.c | 33 +- drivers/mtd/spi-nor/spansion.c | 57 +-- drivers/mtd/spi-nor/sst.c | 7 +- drivers/mtd/spi-nor/swp.c | 22 +- drivers/mtd/spi-nor/winbond.c | 2 +- drivers/mtd/spi-nor/xilinx.c | 18 +- drivers/spi/spi-zynqmp-gqspi.c | 58 ++- drivers/spi/spi.c | 183 +++++++-- include/linux/mtd/spi-nor.h | 21 +- include/linux/spi/spi.h | 51 ++- 19 files changed, 1012 insertions(+), 262 deletions(-)
Comments
On Thu, Oct 19, 2023 at 03:03:20AM +0530, Amit Kumar Mahapatra wrote: > This patch is in the continuation to the discussions which happened on > 'commit f89504300e94 ("spi: Stacked/parallel memories bindings")' for > adding dt-binding support for stacked/parallel memories. This missed the last release since I'd been hoping for some testing by others with relevant hardware - from a code point of view the SPI bits look fine. Could you resend based on v6.7-rc1 please, it doesn't apply any more?
On Thu, 19 Oct 2023 03:03:20 +0530, Amit Kumar Mahapatra wrote: > This patch is in the continuation to the discussions which happened on > 'commit f89504300e94 ("spi: Stacked/parallel memories bindings")' for > adding dt-binding support for stacked/parallel memories. > > This patch series updated the spi-nor, spi core and the AMD-Xilinx GQSPI > driver to add stacked and parallel memories support. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/8] spi: Add multi-cs memories support in SPI core commit: 4d8ff6b0991d5e86b17b235fc46ec62e9195cb9b [6/8] spi: spi-zynqmp-gqspi: Add stacked memories support in GQSPI driver (no commit info) [8/8] spi: spi-zynqmp-gqspi: Add parallel memories support in GQSPI driver (no commit info) All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark