opensbi.git/platform/andes, branch v0.9

lib: sbi: Replace args with trap registers in ecall handler

2021-01-07T04:23:14Z

We had added args pointer in ecall handler to ensure that ecall handler only implements functionality and does not deal with SBI calling convention. This also helped us to keep SBI calling convention related code in one place at sbi_ecall_handler(). The Keystone Enclavce project needs access to the trap regsiters in their ecall handler so that they can context switch enclaves in custom SBI calls. To help the Keystone Enclave project, we replace the args pointer in ecall handler parameter with a const pointer to trap registers. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

platform: Remove dummy system reset functions

2020-12-01T11:38:47Z

Few platforms have dummy system reset functions so let's remove these dummy system reset functions to allow generic code deal with it in the right way. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

platform: Add AE350 cache control SBIs

2020-06-10T03:58:52Z

This patch contains the following AE350 specific SBIs: - get mcache_ctl status - get mmisc_ctl status - set mcache_ctl status - set mmisc_ctl status - I-cache operation - D-cache operation - enable/disable L1-I-cache prefetch - enable/disable L1-D-cache prefetch - enable/disable non-blocking load store - enable/disable write-around Signed-off-by: Nylon Chen Reviewed-by: Anup Patel Reviewed-by: Atish Patra

platform: Add AE350 platform specific SBI handler

2020-06-10T03:57:46Z

We add AE350 platform specific SBI handler to implement AE350 specific SBI calls. Signed-off-by: Nylon Chen Reviewed-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Allow PLIC functions to be used for multiple PLICs

2020-05-23T05:06:29Z

We extend all PLIC functions to have a "struct plic_data *" parameter pointing to PLIC details. This allows platforms to use these functions for multiple PLIC instances. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Remove redundant parameters from PLIC init functions

2020-05-23T05:06:26Z

The "target_hart" and "hart_count" parameters of PLIC cold and warm init functions are only used for sanity checks and not required in PLIC initialization. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi_platform: Combine reboot and shutdown into one callback

2020-04-27T09:05:29Z

We can achieve shutdown, cold reboot, and warm reboot using just one sbi_platform callback so we combine system_reboot() and system_shutdown() callbacks into one system_reset() callback. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: No need to provide default PMP region using platform callbacks

2020-04-27T08:27:27Z

The default (usually last) PMP region provides S-mode access to complete memory range not covered by other PMP regions. Currently, the default PMP region is described as platform specific PMP region which is not appropriate because all platforms need it and default PMP region should be part of generic library. Signed-off-by: Anup Patel Reviewed-by: Atish Patra Reviewed-by: Bin Meng

lib: utils: Move fdt fixup helper routines to a different file

2020-03-24T08:00:32Z

FDT helper file contain both fdt fixup and parsing functions. Split the fixup related functions to a separate file for a better code organization. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

platform: Update to call general DT fix-up helper

2020-03-18T05:39:31Z

Platform andes/ae350, ariane-fpga, qemu/virt and sifive/fu540 codes have been updated to call this general DT fix-up helper. Signed-off-by: Bin Meng Reviewed-by: Anup Patel