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path: root/drivers/mtd/nand/raw/omap_gpmc.c
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2024-10-11drivers: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILDSimon Glass
Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass <sjg@chromium.org>
2024-08-27mtd: nand: raw: omap_gpmc: Check return value of gpmc_nand_initVignesh Raghavendra
If the function is called with no NAND device attached, then this function can return error value, proceeding further ignoring the same can cause system crash. This is seen when "mtd list" is run with no NAND addon cards connected. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Acked-by: Roger Quadros <rogerq@kernel.org>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
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 <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-07mtd: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Reviewed-by: William Zhang <william.zhang@broadcom.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-01-15mtd: rawnand: omap_gpmc: fix OF based partition parsing for NANDRoger Quadros
Set NAND chip ofnode and device so OF based partition parsing can work. Signed-off-by: Roger Quadros <rogerq@kernel.org> Link: https://www.mail-archive.com/u-boot@lists.denx.de/msg499178.html Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2024-01-15mtd: rawnand: omap_gpmc: Use DT provided IO addressRoger Quadros
For DM case we can get the NAND chip's IO address from DT so we don't need to rely on CFG_SYS_NAND_BASE. Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Link: https://www.mail-archive.com/u-boot@lists.denx.de/msg499177.html Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2024-01-15mtd: nand: omap_gpmc: Fix NAND in SPL for AM335xRoger Quadros
AM335x uses a special driver "am335x_spl_bch.c" as SPL NAND loader. This driver expects 1 sector at a time ECC and doesn't work well with multi-sector ECC that was implemented in commit 04fcd2587321 ("mtd: rawnand: omap_gpmc: Fix BCH6/16 HW based correction") Additionally, the omap_elm driver does not support multi sector ECC and will need more work and tests to get multi sector working correctly on all platforms. Switch back to 1 sector at a time read/ECC. Fixes: 04fcd2587321 ("mtd: rawnand: omap_gpmc: Fix BCH6/16 HW based correction") Signed-off-by: Roger Quadros <rogerq@kernel.org> Tested-by: Enrico Leto <enrico.leto@siemens.com> Tested-by: Heiko Schocher <hs@denx.de> Link: https://lore.kernel.org/all/20231211114600.4414-2-rogerq@kernel.org/ Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2023-11-16nand: Calculate SYS_NAND_BLOCK_PAGES (neeĢ SYS_NAND_PAGE_COUNT) automaticallySean Anderson
Contrary to what the help message says, this is the number of pages per block. Calculate it automatically based on SYS_NAND_BLOCK_SIZE and SYS_NAND_PAGE_SIZE. To better reflect its semantics, rename it to SYS_NAND_BLOCK_PAGES. Signed-off-by: Sean Anderson <seanga2@gmail.com>
2023-01-08mtd: rawnand: omap_elm: u-boot driver model supportRoger Quadros
Support u-boot driver model. We still retain support legacy way of doing things if ELM_BASE is defined in <asm/arch/hardware.h> We could completely get rid of that if all platforms defining ELM_BASE get rid of that definition and enable CONFIG_SYS_NAND_SELF_INIT and are verified to work. Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Reviewed-by: Tom Rini <trini@konsulko.com> Link: https://lore.kernel.org/all/20221220102203.52398-9-rogerq@kernel.org Link: https://lore.kernel.org/all/CABGWkvrvKiVA_yaDnHJcHEKwc+pEuLdz=i6HQEY0oJQvohCUsw@mail.gmail.com
2023-01-08mtd: rawnand: omap_gpmc: Add SPL NAND supportRoger Quadros
Enables SPL NAND support for ARCH_K3 by enabling SPL_NAND_INIT and SPL_SYS_NAND_SELF_INIT. Legacy OMAP2plus platforms still rely on SPL_NAND_AM33XX_BCH instead. Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Link: https://lore.kernel.org/all/20221220102203.52398-6-rogerq@kernel.org
2023-01-08mtd: rawnand: omap_gpmc: support u-boot driver modelRoger Quadros
Adds driver model support. We need to be able to self initialize the NAND controller/chip at probe and so enable CONFIG_SYS_NAND_SELF_INIT. Doing so requires nand_register() API which is provided by nand.c and needs to be enabled during SPL build via CONFIG_SPL_NAND_INIT. But nand.c also provides nand_init() so we need to get rid of nand_init() in omap_gpmc driver if CONFIG_SPL_NAND_INIT is set. Signed-off-by: Roger Quadros <rogerq@kernel.org> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Link: https://lore.kernel.org/all/20221220102203.52398-5-rogerq@kernel.org
2023-01-08mtd: rawnand: omap_gpmc: Fix BCH6/16 HW based correctionRoger Quadros
The BCH detection hardware can generate ECC bytes for multiple sectors in one go. Use that feature. correct() only corrects one sector at a time so we need to call it repeatedly for each sector. Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Link: https://lore.kernel.org/all/20221220102203.52398-2-rogerq@kernel.org
2022-12-21Merge tag 'v2023.01-rc4' into nextTom Rini
Prepare v2023.01-rc4 Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-10mtd: rawnand: omap_gpmc: Reduce .bss usageRoger Quadros
Allocate omap_ecclayout on the heap as we have limited .bss space on AM64 R5 SPL configuration. Reduces .bss usage by 2984 bytes. Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-By: Michael Trimarchi <michael@amarulasolutions.com> Link: https://lore.kernel.org/all/20221011115012.6181-9-rogerq@kernel.org Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-12-10mtd: rawnand: omap_gpmc: Optimize NAND readsRoger Quadros
Rename omap_nand_read() to omap_nand_read_buf() to reflect actual behaviour. Use FIFO read address instead of raw read address for reads. The GPMC automatically converts 32-bit/16-bit reads to NAND device specific reads (8/16 bit). Use the largest possible read granularity size for more efficient reads. Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com> Link: https://lore.kernel.org/all/20221011115012.6181-5-rogerq@kernel.org Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-12-10mtd: rawnand: omap_gpmc: Fix build warning on 64-bit platformsRoger Quadros
Pointer size cannot be assumed to be 32-bit, so use use uintptr_t instead of uint32_t. Fixes the below build warning on 64-bit builds. drivers/mtd/nand/raw/omap_gpmc.c:439:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] head = ((uint32_t) buf) % 4; Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com> Link: https://lore.kernel.org/all/20221011115012.6181-4-rogerq@kernel.org Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-12-10mtd: rawnand: omap_gpmc: Deprecate asm/arch/mem.hRoger Quadros
We want to get rid of <asm/arch/mem.h> so don't enforce it for new platforms. This also means GPMC_MAX CS doesn't have to be defined by platform code. Define it locally here for now. Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com> Link: https://lore.kernel.org/all/20221011115012.6181-2-rogerq@kernel.org Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-12-05global: Move remaining CONFIG_SYS_NAND_* to CFG_SYS_NAND_*Tom Rini
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NAND namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-01-19doc: replace @return by Return:Heinrich Schuchardt
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-16nand: gpmc: Handle bitflips in erased pages when using BCH ECC engineDavid Rivshin
In the case of an erased (sub)page both the data and ECC are all 0xFF bytes. This fails the normal ECC verification, as the computed ECC of all-0xFF is not also 0xFF. The GPMC NAND driver attempted to detect erased pages by checking that the ECC bytes are all-0xFF, but this had two problems: 1) bitflips in the data were not corrected, so the data looked not-erased 2) bitflips in the ECC bytes were reported as uncorrectable ECC errors The equivalent Linux driver [1] correctly handles this by counting the number of 0-bits in the combination of data and ECC bytes. If the number of 0-bits is less than the amount of bits correctable by the selected ECC algorithm, then it is treated as an erased page with correctable bitflips. Implement similar, though simplified, logic in omap_correct_data_bch(). [1] see omap_elm_correct_data() in omap2.c Signed-off-by: David Rivshin <drivshin@allworx.com>
2021-10-06nand.h: Cleanup linux/mtd/rawnand.h usageTom Rini
We only include <linux/mtd/rawnand.h> in <nand.h> for the forward declaration of struct nand_chip, so do that directly. Then, include <linux/mtd/rawnand.h> where required directly. Signed-off-by: Tom Rini <trini@konsulko.com>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-09-20mtd: move NAND files into a raw/ subdirectoryMiquel Raynal
NAND flavors, like serial and parallel, have a lot in common and would benefit to share code. Let's move raw (parallel) NAND specific code in a raw/ subdirectory, to ease the addition of a core file in nand/ and the introduction of a spi/ subdirectory specific to SPI NANDs. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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