opensbi.git/lib/utils, branch v0.9

lib: utils: Fix shakti uart implementation

2021-01-07T04:48:23Z

Fix uart_putc implementation. Due to a bug in the IP, this went unnoticed. Use macros instead of magic numbers to make the code more readable. Signed-off-by: Vijai Kumar K Reviewed-by: Anup Patel

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

lib: utils: Allow FDT domain iteration functions to fail

2020-12-16T04:40:19Z

We extend fdt_iterate_each_domain() and fdt_iterate_each_memregion() functions to allow underlying iteration function to fail. This will help us catch more domain misconfiguration issues at boot time. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

lib: utils/libfdt: Upgrade to v1.6.0 release

2020-12-13T04:22:25Z

Sync with libfdt v1.6.0 release source codes. Signed-off-by: Dimitri John Ledkov Reviewed-by: Anup Patel

lib: utils: Add helper routines to populate domains from FDT

2020-12-04T15:40:44Z

We add various helper routines to populate domains, iterate domains, iterate domain memregions, and parse HART to domain assignment from the FDT. These helper routines can be used by platform support code and FDT fixup code. 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

include: sbi: Remove opensbi specific reset type defines

2020-12-01T11:35:12Z

We can now use the standard SBI SRST extension reset types instead of the opensbi specific (SBI_PLATFORM_RESET_xyz) reset types hence remove related opensbi specific defines. The "platform_" prefix of the reset type parameter of sbi_system_reset() function should also be removed. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

lib: utils: Implement "ranges" property parsing

2020-10-23T11:49:21Z

The "reg" property in a device node may not be the correct address always. If a parent node defines a "ranges" property, the child address need to be translated with respect to parents address. If the ranges property is not present, it will just use 1:1 translation. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: utils: Update fdt_cpu_fixup() to use current domain

2020-10-20T08:34:51Z

The fdt_cpu_fixup() should disable a HART in DT if the HART is not assigned to the current HART domain. This patch updates fdt_cpu_fixup() accordingly. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Update fdt_reserved_memory_fixup() to use current domain

2020-10-20T08:34:43Z

Now that each HART is mapped to a domain having a set of memory regions, we update fdt_reserved_memory_fixup() to use domain memory regions for adding reserved memory nodes in device tree. We also change reserved memory node name prefix from "mmode_pmp" to "mmode_resv" because domain memory regions can impact other hardware configurations (such as IOPMP, etc) along with PMP. Signed-off-by: Anup Patel Reviewed-by: Atish Patra