opensbi.git/lib/utils, branch v0.5

lib: Fix timer for 32 bit

2019-08-31T07:43:12Z

To read 64bit time in 32 bit we have to read lower & upper half separately and 'or' them together. However, upper half time may have changed by the time we read lower half. Thus, the resultant 64 bit time may not be accurate. Consider lower half time value only if upper half time value has not changed. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

platform: Remove the ipi_sync method from all platforms.

2019-08-16T03:12:58Z

OpenSBI manages outstanding TLB flush requests by queueing them in a fifo synchronously. An ipi sync which uses an atomic operation on MMIO address is no longer required. Remove the ipi sync method from platform header and all usage. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Use correct type for return value

2019-08-12T03:53:28Z

The error check 'plic_off < 0' does nothing, since plic_off is stored as a u32. Fix this by changing it to an int, which matches the return type of fdt_node_offset_by_compatible(). Signed-off-by: Jacob Garber Reviewed-by: Bin Meng Reviewed-by: Atish Patra

utils: Use cpu_to_fdt32() when writing to fdt

2019-07-25T03:29:50Z

Although it does not make a functional difference, both cpu_to_fdt32() and fdt32_to_cpu() pass on to CPU_TO_FDT32, we should use cpu_to_fdt32() to be semantically correct. Signed-off-by: Georg Kotheimer Reviewed-by: Atish Patra Acked-by: Anup Patel

Changed plic_set_thresh() and plic_set_ie() to public

2019-06-29T11:34:06Z

Signed-off-by: Panagiotis Peristerakis

utils: Remove tinyfdt.c

2019-06-19T04:25:13Z

tinyfdt.c was originally added to provide a minimal implementation of fdt parsing. However, we have already included libfdt in OpenSBI for more complicated operations. Remove tinfdt and replace its functiolity using libfdt. Signed-off-by: Atish Patra Acked-by: Anup Patel

platform: Enable all drivers by default.

2019-06-19T04:19:05Z

The drivers and libfdt are built as libsbiutils.a instead of libplatsbi.a. libsbiutils.a are not built per platform specific. Thus, enable all drivers by default. Signed-off-by: Atish Patra Acked-by: Anup Patel

lib: Rename string.x to sbi_string.x

2019-06-19T04:18:59Z

All string functions are part of libsbi. It makes more sense to rename them to sbi_string.x as the libsbi can be linked with external libraries that can have similar implementation. Signed-off-by: Atish Patra Acked-by: Anup Patel

platform: Move platform common to lib/utils.

2019-06-19T04:18:56Z

Currently, platform/common contains platform/non-platform specific common minimal drivers and libraries. This is helpful is all platforms are built within opensbi framework. Move them to lib/utils so that any external platform code also can reuse the minimalistic drivers or other common libraries. This patch doesn't introduce any functional changes. Signed-off-by: Atish Patra Acked-by: Anup Patel