summaryrefslogtreecommitdiff
path: root/arch/riscv/cpu/ax25
Commit message (Collapse)AuthorAgeFilesLines
* riscv: Rename Andes cpu and board namesLeo Yu-Chi Liang2023-02-175-230/+0
| | | | | | | | | | The current ae350-related defconfigs could also support newer Andes CPU IP, so modify the names of CPU from ax25 to andesv5, and board name from ax25-ae350 to ae350. Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* configs: ae350: Enable v5l2 cache for AE350 platforms in SPLYu Chien Peter Lin2023-02-171-0/+1
| | | | | | | | | | | | To reduce the code size, CONFIG_V5L2_CACHE was disabled since commit: ca06444aac2c643db3a3f2eb37afc60fae15177e Turing on does not significantly increase the size of u-boot-spl.bin, so we enable it by default to improve performance. Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: ax25: cache.c: Cleanups to L1/L2 cache function used in SPLYu Chien Peter Lin2023-02-171-30/+68
| | | | | | | | | This patch refines L1 cache enable/disable and v5l2-cache enable functions. Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: cpu: ax25: Simplify cache enabling logic in harts_early_init()Yu Chien Peter Lin2023-02-171-37/+12
| | | | | | | | | | | | | As the OpenSBI v1.2 does not enable the cache [0], we enable the i/d-cache in harts_early_init() and do not disable in cleanup_before_linux(). This patch also simplifies the logic and moves the CSR encoding to include/asm/arch-andes/csr.h. [0] https://github.com/riscv-software-src/opensbi/commit/bd7ef4139829da5c30fa980f7498d385124408fa Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: Remove redundant Kconfig "RISCV_NDS_CACHE"Leo Yu-Chi Liang2023-02-172-92/+2
| | | | | | | | There is no need for RISCV_NDS_CACHE config to control cache switches. Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: ax25: bypass malloc when spl fit boots from ramRick Chen2023-02-012-0/+28
| | | | | | | | | | | | | | | | | When fit image boots from ram, the payload will be prepared in the address of SPL_LOAD_FIT_ADDRESS. In spl fit generic flow, it will malloc another memory address and copy whole fit image to this malloc address. But it is un-necessary for booting from RAM. This patch improves this flow by declare the board_spl_fit_buffer_addr() to replace the original one. The larger image size (eq: Kernel Image 10~20MB), it can save more booting time. Signed-off-by: Rick Chen <rick@andestech.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
* riscv: ae350: Enable CCTL_SUENRick Chen2023-02-011-7/+11
| | | | | | | | | | CCTL operations are available to Supervisor/User-mode software under the control of the mcache_ctl.CCTL_SUEN control bit. Enable it to support Supervisor(and User) CCTL operations. Signed-off-by: Rick Chen <rick@andestech.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
* riscv: Rename Andes PLIC to PLICSWYu Chien Peter Lin2022-11-031-1/+1
| | | | | | | | | | As PLICSW is used to trigger the software interrupt, we should rename Andes PLIC configuration and file name to reflect the usage. This patch also updates PLMT and PLICSW compatible strings to be consistent with OpenSBI fdt driver. Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: ae350: enable Coherence Manager for ae350Leo Yu-Chi Liang2021-10-071-0/+42
| | | | | | | | | | If Coherence Manager were not set in the beginning, u-boot-spl would sometimes fail to boot to u-boot proper. Enable CM and I/D cache at the same time in harts_early_init Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Rick Chen <rick@andestech.com>
* cpu: Rename SPL_CPU_SUPPORT to SPL_CPUSimon Glass2021-03-271-1/+1
| | | | | | | | | The _SUPPORT suffix is from an earlier time and interferes with use of the CONFIG_IS_ENABLED() macro. Rename the option to drop the suffix. Tidy up the TODO that prompted this. Signed-off-by: Simon Glass <sjg@chromium.org>
* timer: Add _TIMER suffix to Andes PLMT KconfigSean Anderson2020-10-261-1/+1
| | | | | | | | This matches the naming scheme of other timer drivers. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: Rework riscv timer driver to only support S-modeSean Anderson2020-09-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The riscv-timer driver currently serves as a shim for several riscv timer drivers. This is not too desirable because it bypasses the usual timer selection via the driver model. There is no easy way to specify an alternate timing driver, or have the tick rate depend on the cpu's configured frequency. The timer drivers also do not have device structs, and so have to rely on storing parameters in gd_t. Lastly, there is no initialization call, so driver init is done in the same function which reads the time. This can result in confusing error messages. To a user, it looks like the driver failed when trying to read the time, whereas it may have failed while initializing. This patch removes the shim functionality from the riscv-timer driver, and has it instead implement the former rdtime.c timer driver. This is because existing u-boot users who pass in a device tree (e.g. qemu) do not create a timer device for S-mode u-boot. The existing behavior of creating the riscv-timer device in the riscv cpu driver must be kept. The actual reading of the CSRs has been redone in the style of Linux's get_cycles64. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
* common: Drop net.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | | | | | | 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>
* riscv: ax25: cache: Remove SPL_RISCV_MMODE config checkPragnesh Patel2020-04-231-8/+8
| | | | | | | | CONFIG_IS_ENABLED(FOO) will check FOO config option for U-Boot, SPL and TPL, so remove unnecessary CONFIG_IS_ENABLED() Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* riscv: ax25: cache: Add SPL_RISCV_MMODE for SPLRick Chen2019-12-101-14/+46
| | | | | | | | | | The mcache_ctl csr only can be manipulated in M mode. Add SPL_RISCV_MMODE for U-Boot SPL to control cache operation. Signed-off-by: Rick Chen <rick@andestech.com> Cc: KC Lin <kclin@andestech.com> Cc: Alan Kao <alankao@andestech.com>
* riscv: ax25: add SPL supportRick Chen2019-12-101-1/+3
| | | | | | | | | | | | | | The U-Boot SPL will boot in M mode and load the FIT image which include OpenSBI and U-Boot proper images. After loading progress, it will jump to OpenSBI first and then U-Boot proper which will run in S mode. Also remove V5L2_CACHE due to U-Boot SPL code size consideration. Without this concern, it can be enable manually for performance. Signed-off-by: Rick Chen <rick@andestech.com> Cc: KC Lin <kclin@andestech.com> Cc: Alan Kao <alankao@andestech.com>
* common: Move ARM cache operations out of common.hSimon Glass2019-12-021-0/+1
| | | | | | | | | 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>
* common: Move some cache and MMU functions out of common.hSimon Glass2019-12-022-0/+2
| | | | | | | | | | | | These functions belong in cpu_func.h. Another option would be cache.h but that code uses driver model and we have not moved these cache functions to use driver model. Since they are CPU-related it seems reasonable to put them here. Move them over. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
* riscv: cache: use CCTL to flush d-cacheRick Chen2019-09-031-9/+13
| | | | | | | | | Use CCTL command to do d-cache write back and invalidate instead of fence. Signed-off-by: Rick Chen <rick@andestech.com> Cc: KC Lin <kclin@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* riscv: cache: Flush L2 cache before jump to linuxRick Chen2019-09-031-0/+17
| | | | | | | | | | | | | Flush and disable L2 cache in dcache_disable() which will be called in cleanup_before_linux() before jump to linux. The sequence will be preferred as below: L1 flush -> L1 disable -> L2 flush -> L2 disable Signed-off-by: Rick Chen <rick@andestech.com> Cc: KC Lin <kclin@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* riscv: ax25: add imply v5l2 cache controllerRick Chen2019-09-031-0/+1
| | | | | | | | Select the v5l2 UCLASS_CACHE driver for ax25. Signed-off-by: Rick Chen <rick@andestech.com> Cc: KC Lin <kclin@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* riscv: add run mode configuration for SPLLukas Auer2019-08-261-3/+3
| | | | | | | | | | | | | | | | U-Boot SPL can be run in a different privilege mode from U-Boot proper. Add new configuration entries for SPL to allow the run mode to be configured independently of U-Boot proper. Extend all uses of the CONFIG_RISCV_SMODE and CONFIG_RISCV_MMODE configuration symbols to also cover the SPL equivalents. Ensure that files compatible with only one privilege mode are not included in builds targeting an incompatible privilege mode. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
* CONFIG_SPL_SYS_[DI]CACHE_OFF: addTrevor Woerner2019-05-181-4/+4
| | | | | | | | | | | | | While converting CONFIG_SYS_[DI]CACHE_OFF to Kconfig, there are instances where these configuration items are conditional on SPL. This commit adds SPL variants of these configuration items, uses CONFIG_IS_ENABLED(), and updates the configurations as required. Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Trevor Woerner <trevor@toganlabs.com> [trini: Make the default depend on the setting for full U-Boot, update more zynq hardware] Signed-off-by: Tom Rini <trini@konsulko.com>
* riscv: ax25: Andes specific cache shall only support in M-modeRick Chen2019-04-081-0/+1
| | | | | | | | | | Limit the cache configuration only can be supported in M mode. It can not be manipulated in S mode. Signed-off-by: Rick Chen <rick@andestech.com> Cc: Greentime Hu <greentime@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
* riscv: ax25: Add platform-specific Kconfig optionsRick Chen2019-04-081-0/+6
| | | | | | | | | | | Add ax25 RISC-V platform-specific Kconfig options, to include CPU and timer drivers. Also disable ATCPIT100 SoC timer and replace by PLMT. Signed-off-by: Rick Chen <rick@andestech.com> Cc: Greentime Hu <greentime@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
* riscv: move the AX25-specific implementation of flush_dcache_allLukas Auer2019-01-151-0/+22
| | | | | | | | | | | | | | | | | The fence instruction is used to enforce device I/O and memory ordering constraints in RISC-V. It can not be relied on to directly affect the data cache on every CPU. Andes' AX25 does not have a coherence agent. Its fence instruction flushes the data cache and is used to keep data in the system coherent. The implementation of flush_dcache_all in lib/cache.c is therefore specific to the AX25. Move it into the AX25-specific cache.c in cpu/ax25/. This also adds a missing new line between flush_dcache_all and flush_dcache_range in lib/cache.c. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* riscv: ax25: Hide the ax25-specific Kconfig optionBin Meng2018-12-182-11/+18
| | | | | | | | | | There is no need to expose RISCV_NDS to the Kconfig menu as it is an ax25-specific option. Introduce a dedicated Kconfig option for the cache ops of ax25 platform and use that to guard the cache ops. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Rick Chen <rick@andestech.com>
* riscv: cache: Implement i/dcache [status, enable, disable]Rick Chen2018-11-264-0/+107
| | | | | | | | | | | | | | | | AndeStar RISC-V(V5) provide mcache_ctl register which can configure I/D cache as enabled or disabled. This CSR will be encapsulated by CONFIG_RISCV_NDS. If you want to configure cache on AndeStar V5 AE350 platform. YOu can enable [*] AndeStar V5 ISA support by make menuconfig. This approach also provide the expansion when the vender specific features are going to join in. Signed-off-by: Rick Chen <rick@andestech.com> Cc: Greentime Hu <greentime@andestech.com>
* riscv: Move do_reset() to a common placeBin Meng2018-10-031-9/+0
| | | | | | | | | | | We don't have a reset method on any RISC-V board yet. Instead of adding the same 'unsupported' message for each CPU variant it might make more sense to add a generic do_reset function for all CPU variants to lib/, similar to the one for ARM (arch/arm/lib/reset.c). Suggested-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
* riscv: Make start.S available for all targetsBin Meng2018-10-032-294/+0
| | | | | | | | Currently start.S is inside arch/riscv/cpu/ax25/, but it can be common for all RISC-V targets. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
* riscv: Move the linker script to the CPU root directoryBin Meng2018-10-031-90/+0
| | | | | | | | The linker script can be shared by all RISC-V targets. Move it to a common place. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
* riscv: Include bss subsections in linker scriptAlexander Graf2018-08-201-1/+1
| | | | | | | | | When we build with -fdata-sections we may end up with bss subsections. Our linker script explicitly lists only a single consecutive bss section though. Adapt the statement to also include subsections. Signed-off-by: Alexander Graf <agraf@suse.de>
* efi_loader: Rename sections to allow for implicit dataAlexander Graf2018-07-251-10/+16
| | | | | | | | | | | | | | | | | | | | | | | Some times gcc may generate data that is then used within code that may be part of an efi runtime section. That data could be jump tables, constants or strings. In order to make sure we catch these, we need to ensure that gcc emits them into a section that we can relocate together with all the other efi runtime bits. This only works if the -ffunction-sections and -fdata-sections flags are passed and the efi runtime functions are in a section that starts with ".text". Up to now we had all efi runtime bits in sections that did not interfere with the normal section naming scheme, but this forces us to do so. Hence we need to move the efi_loader text/data/rodata sections before the global *(.text*) catch-all section. With this patch in place, we should hopefully have an easier time to extend the efi runtime functionality in the future. Signed-off-by: Alexander Graf <agraf@suse.de> [agraf: Fix x86_64 breakage]
* riscv: cpu: nx25: Rename as ax25Rick Chen2018-05-294-0/+416
Andes has rearranged the product combinations. nx25 and ax25 both are RISC-V architecture cpu core. But ax25 has MMU unit inside, and nx25 is not. Cpu nx25 and platform ae250 are arranged in pairs. Cpu ax25 and platform ae350 are arranged in pairs. This patch will rename nx25 as ax25 ae250 as ae350 nx25-ae250 as ax25-ae350 including filename, variable, string and definition. Then u-boot can boot linux kernel in ae350 platform reasonably. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Cc: Greentime Hu <green.hu@gmail.com>
View Lorry Controller Status