u-boot.git/drivers/ram/k3-ddrss, branch v2024.07

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

2024-05-19T14:16:36Z

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 Signed-off-by: Tom Rini

ram: Remove and add needed includes

2024-05-07T14:00:56Z

Remove from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini

tree-wide: Replace http:// link with https:// link for ti.com

2023-11-10T16:01:50Z

Replace instances of http://www.ti.com with https://www.ti.com Signed-off-by: Nishanth Menon

treewide: use dev_read_addr_*_ptr() where appropriate

2023-10-13T20:01:42Z

A follow-up to commit 842fb5de424e ("drivers: use devfdt_get_addr_size_index_ptr when cast to pointer") and commit 320a1938b6f7 ("drivers: use devfdt_get_addr_index_ptr when cast to pointer"). In addition to using the *_ptr variants of these functions where the address is cast to a pointer, this also changes devfdt_get_addr_*() to dev_read_addr_*() in a few places. Some variable and field types are changed from fdt_addr_t or phys_addr_t to void* where the cast was happening later. This patch fixes a number of compile warnings when building a 32bit U-Boot with CONFIG_PHYS_64BIT=y. In some places, it also fixes error handling where the return value of dev_read_addr() etc. was checked for NULL instead of FDT_ADDR_T_NONE. Signed-off-by: Matthias Schiffer Reviewed-by: Simon Glass

ram: k3-ddrss: do not touch ctrl regs during training

2023-07-21T19:32:12Z

During LPDDR initialization we will loop through a series of frequency changes in order to train at the various operating frequencies. During this training, accessing the DRAM_CLASS bitfield could happen during a frequency change and cause the read to hang. Store the DRAM type into the main structure to avoid multiple readings while the independent phy is training. Signed-off-by: Bryan Brattlof

ram: k3-ddrss: add am62a controller support

2022-12-09T19:10:28Z

TI's am62a family of SoCs uses a new 32bit DDR controller that shares much of the same functionality with the existing am64 and j721e controllers. Select this controller by default when u-boot is build for the am62a Signed-off-by: Bryan Brattlof Reviewed-by: Tom Rini

ram: k3-ddrss: add auto-generated macros for am62a support

2022-12-09T19:10:28Z

The new 32bit DDR controller for TI's am62a family of SoCs shares much of the same functionality with the existing 16bit (am64) and 32bit (j721e) controllers, so this patch reorganizes the existing auto-generated macros for the 16bit and 32bit controllers to make room for the macros for the am62a's controller This patch consists mostly of header/macro renames and additions with a new Kconfig option (K3_AM62A_DDRSS) allowing us to select these new macros during compilation. Signed-off-by: Bryan Brattlof

ram: k3-ddrss: Allow use of dt provided initial frequency

2022-04-20T15:14:39Z

Allow device tree to provide ti,ddr-freq0 to be used as the initial DDR frequency that is set for lpddr4 before initialization of the controller. Make this optional and continue to use PLL bypass frequency as is done currently if ti,ddr-freq0 is not provided. Signed-off-by: Dave Gerlach

ram: k3-ddrss: Fix register name and explain its usage

2022-04-20T15:14:39Z

The k3-ddrss driver wants to configure the DDRSS_V2A_CTL_REG to reflect the maximum possible SDRAM of 2 GB for AM64x (instead of the register's default that says 8 GB, which the AM64x DDR controller wouldn't support). The offset 0x20 was correct, but the register name DDRSS_V2A_R1_MAT_REG was that of the next register at offset 0x24. Signed-off-by: Dominic Rath

ram: k3-ddrss: Introduce ECC Functionality for full memory space

2022-04-04T23:02:04Z

Introduce ECC Functionality for full memory space as implemented in the DDRSS. The following is done to accomplish this: * Introduce a memory region "ss" to allow dt to provide DDRSS region, which is not the same as "ctl" which is the controller region. * Introduce a "ti,ecc-enable" flag which allows a memorycontroller instance to enable ecc. * Introduce functionality to properly program the DDRSS registers to enable ECC for the full DDR memory space if enabled with above flag. * Expose a k3_ddrss_ddr_fdt_fixup call to allow fixup of fdt blob to account from DDR memory that must be reserved for ECC operation. Signed-off-by: Dave Gerlach