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

lib: sbi: Improve system reset platform operations

2020-12-01T11:40:31Z

To implement the SBI SRST extension, we need two platform operations for system reset: 1) system_reset_check() - This operation will check whether given reset type and reason are supported by the platform 2) system_reset() - This operation will do the actual platform system reset and it will not return if reset type and reason are supported by the platform This patch updates system reset related code everywhere as-per above. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

platform: Update Nuclei ux600 platform support

2020-06-17T15:36:40Z

Changes are made to support our FPGA evaluation board, it has DDR memory(0xA0000000-0xB0000000). * Adapt the config.mk to match FPGA evaluation board DDR memory address * Since the RISC-V CPU core frequency of FPGA might change, so we use the fixed TIMER frequency to measure the real CPU core frequency. * And the UART baudrate has to set to 57600bps for Nuclei FPGA evaluation board when CPU core frequency is about 8MHz, otherwise the UART input will not work correctly. Signed-off-by: Huaqi Fang <578567190@qq.com> Reviewed-by: Anup Patel

lib: utils: Allow CLINT functions to be used for multiple CLINTs

2020-05-23T05:06:43Z

We extend CLINT cold init function to have a "struct clint_data *" parameter pointing to CLINT details. This allows platforms to use CLINT functions for multiple CLINT instances. When multiple CLINTs are present, the platform can also provide one of the CLINT as reference CLINT for other CLINTs. This will help CLINTs to sync their time value with reference CLINT using a time_delta computed in warm init function. Signed-off-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

platform: Add Nuclei UX600 platform

2020-04-29T09:36:36Z

* Nuclei UX600 is a 64-bit RISC-V core developed by Nuclei System Technology, see https://nucleisys.com/product.php * The ISA is configurable in hardware on your demand Signed-off-by: Huaqi Fang <578567190@qq.com> Reviewed-by: Anup Patel Reviewed-by: Bin Meng