opensbi.git/lib/utils/ipi, branch v1.0

include: sbi_utils: Introduce an helper to get fdt base address

2021-11-02T05:53:16Z

This simply adds an helper to get fdt address which is more explicit than sbi_scratch_thishart_arg1_ptr. Signed-off-by: Alexandre Ghiti Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils/fdt: Extend fdt_parse_aclint_node() function

2021-08-14T03:32:39Z

The fdt_parse_aclint_node() is used to parse DT node for SiFive CLINT, ACLINT MTIMER, and ACLINT MSWI devices. The ACLINT MTIMER has undergone following changes: 1) MTIMER DT node now requires separate addresses in for MTIME register and MTIMECMPx registers in the reg DT property. 2) MTIMER DT node might have no interrupts-extended DT property when the MTIMER device has no associated HARTs (i.e. the MTIMER device has no MTIMECMPx registers) This patch extends fdt_parse_aclint_node() to handle above mentioned changes in ACLINT MTIMER DT bindings. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/ipi: Add FDT based ACLINT MSWI IPI driver

2021-06-24T04:09:51Z

We add a new FDT based ACLINT MSWI IPI driver which works for both CLINT device and standalone ACLINT MSWI device. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W

lib: utils: Add FDT parsing API common for both ACLINT and CLINT

2021-06-24T04:09:48Z

We add fdt_parse_aclint_node() which can parse both ACLINT and CLINT DT nodes. This means fdt_parse_clint_node() is not required anymore so we remove it as well. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W

lib: utils/ipi: Add ACLINT MSWI library

2021-06-24T04:09:44Z

We add common ACLINT MSWI library similar to the CLINT library so that OpenSBI platforms can use it. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W

lib: utils: Try other FDT drivers when we see SBI_ENODEV

2021-05-24T10:19:21Z

We should try other FDT drivers when we see SBI_ENODEV returned by cold_init() of FDT driver. Signed-off-by: Anup Patel Reviewed-by: Atish Patra Reviewed-by: Xiang W

lib: sbi: Simplify ipi platform operations

2021-04-28T11:33:31Z

Instead of having ipi_send() and ipi_clear() callbacks in platform operations, it will be much simpler for ipi driver to directly register these operations as a device to sbi_ipi implementation. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis

lib/utils: Support the official clint DT bindings

2021-04-01T04:56:41Z

Linux kernel commit a2770b57d083 ("dt-bindings: timer: Add CLINT bindings") adds the official DT bindings for CLINT, which uses "sifive,clint0" as the compatible string. "riscv,clint0" is now legacy and has to be kept for backward compatibility of legacy systems. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils/ipi: Initialize all matching ipi DT nodes

2020-05-23T05:06:49Z

We can have multiple matching DT nodes of the same FDT ipi driver so in this case we should call cold_init() for all matching DT nodes instead of just first matching DT node. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Add fdt_parse_clint_node() function

2020-05-23T05:06:46Z

We add fdt_parse_clint_node() function which will be used by fdt_ipi_clint and fdt_timer_clint drivers to parse CLINT details from DT node. Signed-off-by: Anup Patel Reviewed-by: Atish Patra