opensbi.git/platform, branch v0.9

platform: template: Fix compile error

2021-01-18T09:19:56Z

This clint driver init functions were incorrectly used in template platform which resulted in compile error. This patch fixes clint driver function usage in template platform. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

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

lib: utils: Remove fdt_domain_get() function

2020-12-16T04:40:25Z

The fdt_domain_get() function is now redundant because the fdt_domains_populate() function can explicitly register new domains using the sbi_domain_register() function. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

platform: generic: Populate domains from FDT

2020-12-04T15:44:25Z

The generic platform should populate domains from FDT using the domain FDT helper routines. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

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: 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: kendryte/k210: Add some padding for FDT fixups

2020-10-18T05:04:37Z

The Kendryte K210 platform has built-in DTB and does not provides FW_PAYLOAD_FDT_ADDR. This means the FDT fixups will be done on the built-in DTB in absence of FW_PAYLOAD_FDT_ADDR. This patch adds some padding in built-in DTB for FDT fixups. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

firmware: Remove FW_PAYLOAD_FDT_PATH compile-time option

2020-10-18T04:59:59Z

The FW_PAYLOAD_FDT_PATH compile-time option is replaced by FW_FDT_PATH compile-time option which is more flexible and common across all OpenSBI firmwares. This patch removes FW_PAYLOAD_FDT_PATH and updates related documentation to use FW_FDT_PATH. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

platform: generic: Don't mark non-MMU HARTs as invalid

2020-09-16T03:35:31Z

Currently, the generic platform fw_platform_init() marks non-MMU HARTs (e.g. E-core on SiFive Unleashed) as invalid. This means such non-MMU HARTs won't be allowed to go ahead by sbi_init(). The sbi_init() now has a check for next stage privilege mode when selecting coldboot HART. This check will force non-MMU HARTS (i.e. HARTs without S-mode) to proceed in warmboot path and wait in the HSM STOPPED state. This means we don't need to mark non-MMU HARTs as invalid in generic platform fw_platform_init(). Signed-off-by: Anup Patel Reviewed-by: Atish Patra

platform: kendryte/k210: fixup FDT

2020-08-20T09:37:52Z

When passing the device tree to the next stage we should apply necessary device tree fix-ups first. These include: * fix up the CPU node in the device tree * fix up the PLIC node in the device tree * fix up the reserved memory node in the device tree Signed-off-by: Heinrich Schuchardt Reviewed-by: Atish Patra