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path: root/drivers/spi/ti_qspi.c
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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>
2024-05-07spi: 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: Cédric Le Goater <clg@kaod.org> Reviewed-by: William Zhang <william.zhang@broadcom.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2022-01-16Fix wrong QSPI clock calculation for AM4372Stefan Mätje
On AM4372 the SPI_GCLK input gets its clock from the PRCM module which divides the PER_CLKOUTM2 frequency (192MHz) by a fixed factor of 4. See AM437x Reference Manual in section 27 QSPI >> 27.2 Integration. The QSPI_FCLK therefore needs to take this factor into account and becomes (192000000 / 4). Signed-off-by: Stefan Mätje <stefan.maetje@esd.eu>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-12spi: ti_qspi: Fix "spi-max-frequency" error path in ti_qspi_ofdata_to_platdataOvidiu Panait
struct ti_qspi_priv->max_hz is declared as unsigned int, so the following error path check will always be false, even when "spi-max-frequency" property is invalid/missing: priv->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", -1); if (priv->max_hz < 0) { ... } Replace the fdtdec call with dev_read_u32_default() and use 0 as the default value. Error out if max_hz is zero. Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-25treewide: convert devfdt_get_addr() to dev_read_addr()Masahiro Yamada
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To generate this commit, I used coccinelle excluding drivers/core/, include/dm/, and test/ The semantic patch that makes this change is as follows: <smpl> @@ expression dev; @@ -devfdt_get_addr(dev) +dev_read_addr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-07-24Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"Tom Rini
This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing changes made to 56d37f1c564107e27d873181d838571b7d7860e7. Unfortunately this is causing CI failures: https://travis-ci.org/github/trini/u-boot/jobs/711313649 Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-20treewide: convert devfdt_get_addr() to dev_read_addr()Masahiro Yamada
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To generate this commit, I used coccinelle excluding drivers/core/, include/dm/, and test/ The semantic patch that makes this change is as follows: <smpl> @@ expression dev; @@ -devfdt_get_addr(dev) +dev_read_addr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-05-18common: Drop linux/bitops.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
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>
2020-05-18common: Drop net.h from common headerSimon Glass
Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-01-27spi: ti_qspi: Add support for CS other than CS0Vignesh Raghavendra
Make sure corresponding setup registers are updated depending on CS. This ensures that driver can support QSPI flashes on ChipSelects other than on CS0 Reported-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-12-02common: Move ARM cache operations out of common.hSimon Glass
These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-04-17spi: ti_qspi: Convert to spi-mem opsVignesh Raghavendra
Convert driver to use spi-mem ops in order to support accelerated MMIO flash interface in generic way and for better performance. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-04-17spi: ti_qspi: Drop non DM codeVignesh Raghavendra
Now that all boards using TI QSPI have moved to DM and DT, drop non DM code completely. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> [jagan: update MIGRATION.txt, rebase config_whitelist.txt] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-01dm: core: Replace of_offset with accessor (part 2)Simon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01dm: Rename dev_addr..() functionsSimon Glass
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-03-22drivers: ti_qspi: use syscon to get the address ctrl_mod_mmap registerJean-Jacques Hiblot
We used to get the address of the optionnal ctrl_mod_mmap register as the third memory range of the "reg" property. the linux driver moved to use a syscon instead. In order to keep the DTS as close as possible to that of linux, we move to using a syscon as well. If SYSCON is not supported, the driver reverts to the old way of getting the address from the 3rd memory range Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-03ARM: DRA7x/AM57xx: Get rid of CONFIG_AM57XXNishanth Menon
CONFIG_AM57XX is just an unnecessary macro that is redundant given So, remove the same instead of spreading through out the u-boot source code and getting in the way to maintain common code for DRA7x family. Acked-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-11-13spi: ti_qspi: Fix baudrate divider calculationVignesh R
Fix the divider calculation logic to choose a value so that the resulting baudrate is either equal to or closest possible baudrate less than the requested value. While at that, cleanup ti_spi_set_speed(). Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-09-22spi: Use mode for rx mode flagsJagan Teki
Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
2016-09-22spi: ti_qspi: Remove unnecessary udelay for AM437xVignesh R
This udelay() was added as an HACK and is no longer required. All read/write/erase operations work fine even without this delay. Hence, remove the udelay() call. Tested read/write/erase operation on AM437x SK. Also tested QSPI Boot. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-09-22spi: ti_qspi: use 128 bit transfer mode when writing to flashVignesh R
TI QSPI has four 32 bit data registers which can be used to transfer 16 bytes of data at once. The register group QSPI_SPI_DATA_REG_3, QSPI_SPI_DATA_REG_2, QSPI_SPI_DATA_REG_1 and QSPI_SPI_DATA_REG is treated as a single 128-bit word for shifting data in and out. The bit at QSPI_SPI_DATA_REG_3[31] position is the first bit to be shifted out in case of 128 bit transfer mode. Therefore the first byte to be written to flash should be at QSPI_SPI_DATA_REG_3[31-25] position. Instead of writing 1 byte at a time when interacting with SPI NOR flash, make use of all the four registers so that 16 bytes can be transferred in one go. With this patch, the flash write speed increases from ~250KBs/ to ~650KB/s on DRA74 EVM. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-07-30spi: ti_qspi: dra7xx: Add support to use 76.8MHz clockVignesh R
According to AM572x DM SPRS953A, QSPI bus speed can be 76.8MHz, update the driver to use the same. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-07-30spi: ti_qspi: Remove delay in read path for dra7xxVignesh R
As per commit b545a98f5dc563 ("spi: ti_qspi: Add delay for successful bulk erase) says its added to meet bulk erase timing constraints. But bulk erase is a cmd to flash and delay in read path does not make sense. Morever, testing on DRA74/DRA72 evm has shown that this delay is no longer required. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-07-30spi: ti_qspi: Fix compiler warning when DEBUG macro is setVignesh R
clk_div is uninitialized at the beginning of ti_spi_set_speed(), move debug() print after clk_div calculation to avoid compiler warning and to have proper value of clk_div printed during debugging. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-07-30spi: ti_qspi: Fix failure on multiple READ_ID cmdVignesh R
Populating QSPI_RD_SNGL bit(0x1) in priv->cmd means that value QSPI_INVAL (0x4) is not written to CMD field of QSPI_SPI_CMD_REG in ti_qspi_cs_deactivate(). Therefore CS is never deactivated between successive READ ID which results in sf probe to fail. Fix this by not populating priv->cmd with QSPI_RD_SNGL and OR it wih priv->cmd as required (similar to the convention followed in the driver). Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-07-01driver: qspi: correct QSPI disable CS reset valuePraneeth Bajjuri
Correcting QSPI disable/unselect CS reset value. CTRL_CORE_CONTROL_IO_2: QSPI_MEMMAPPED_CS[10:8] This is not causing any issue, but its better to untouch the reserved bits. Praneeth Bajjuri <praneeth@ti.com> Signed-off-by: Ravi Babu <ravibabu@ti.com>
2016-03-12dm: ti_qspi: Fix conversion of address to a pointerLokesh Vutla
TI QSPI driver directly typecasts fdt_addr_t to a pointer. This is not strictly correct, as it gives a build warning when fdt_addr_t is u64. So, use map_physmem for a proper typecasts. This is inspired by commit 167efe01bc5a9 ("dm: ns16550: Use an address instead of a pointer for the uart base") Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-02-23spi: ti_qspi: compile out spi_flash_copy_mmap when CONFIG_DMA is definedMugunthan V N
When CONFIG_DMA is defined the default spi_flash_copy_mmap() can handle dma memory copy, so compile out spi_flash_copy_mmap() from ti_qspi driver when CONFIG_DMA config is defined. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-01-20spi: ti_qspi: Use 4-byte opcode for mmap readVignesh R
ti-qspi driver currently uses 3-byte addressing mode(and opcodes) for memory-mapped read. This restricts maximum addressable flash size to 16MB. Enable the 4-byte addressing(and use 4-byte opcode) for memory-mapped read to allow access to addresses above 16MB. Signed-off-by: Ravi Babu <ravibabu@ti.com> [vigneshr@ti.com: Re-word commit description] Signed-off-by: Vignesh R <vigneshr@ti.com>
2016-01-13drivers: spi: ti_qspi: convert driver to adopt device driver modelMugunthan V N
adopt ti_qspi driver to device driver model Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-01-13drivers: spi: ti_qspi: prepare driver for DM conversionMugunthan V N
Prepare driver for DM conversion. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-01-13drivers: spi:ti_qspi: change ti_qspi_slave to ti_qspi_priv for driver model ↵Mugunthan V N
conversion Changing the ti_qspi_priv structure and its instance names from to priv for driver mode conversion. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-01-13drivers: spi: ti_qspi: do not hard code chip select for memory map configurationMugunthan V N
To enable memory map in dra7xx, specific chip select must be written to control module register. But this hard coded to chip select 1, fixing it by writing the specific chip select value to control module register. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-01-13spi: Rename op_mode_rx to mode_rxJagan Teki
Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
2016-01-13spi: Rename SPI_OPM_RX_* to SPI_RX_*Jagan Teki
SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-12-11spi: ti_qspi: Fix SPI_3WIRE checking using modeJagan Teki
SPI_3WIRE is spi mode not spi flags, so this patch fixed the spi-3wire checking throgh mode instead of flags. Cc: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-11-17spi: ti_qspi: Add dummy readl for bus syncVignesh R
Add dummy readl after invalidating cmd field of QSPI_CMD_REG to ensure bus sync. Without this device's CS is not deactivated reliably leading to failure to enumerate flash or failure to set quad enable bit on Macronix flash present on am437x-sk and am437x-idk evms. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-10-27spi: ti_qspi: Use BIT macroJagan Teki
Replace numerical bit shift with BIT macro in ti_qspi :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Reviewed-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-08-17spi: ti_qspi: Use DMA to read from qspi flashVignesh R
ti_qspi uses memory map mode for faster read. Enabling DMA will increase read speed by 3x @48MHz on DRA74 EVM. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-08-17ti: qspi: set flash quad bit based on quad support flagvishalm@ti.com
Update op_mode_rx flag based on CONFIG_QSPI_QUAD_SUPPORT flag, instead of platform. Signed-off-by: Vishal Mahaveer <vishalm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>