Gabriel Somlo 173117ad4b Add 'volatile' qualifier to new CSR accessors ... Through their use of the MMPTR() macro, the "classic" csr_[read|write]simple() accsessors identify the MMIO subregister with the 'volatile' qualifier. Adjust the new, csr_[rd|wr]_uint[8|16|32|64]() accessors to also utilize the 'volatile' qualifier. Since accesses are implicit (a[i], where a is an 'unsigned long *'), change 'a' to be a 'volatile unsigned long *' instead. No difference was noticed in opcodes generated using the gcc9 risc-v cross-compiler on x86_64 with standard LiteX cflags (vexriscv and rocket were tested), but since reports exist that 'volatile' matters on some combinations of compilers and targets, add the 'volatile' qualifier just to be on the safe side. Signed-off-by: Gabriel Somlo <gsomlo@gmail.com		2020-02-21 14:10:13 -05:00
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boards	targets/nexys4ddr: add optional sdcard support	2020-02-19 20:16:13 -05:00
build	build/sim: add Verilator FST tracing support.	2020-02-20 13:53:31 +01:00
gen	gen/fhdl/verilog: fix signed init values	2020-01-12 22:06:35 +01:00
soc	Add 'volatile' qualifier to new CSR accessors	2020-02-21 14:10:13 -05:00
tools	build/sim: add Verilator FST tracing support.	2020-02-20 13:53:31 +01:00
__init__.py	soc/interconnect: rename stream_packet to packet & cleanup (with retro-compat)	2019-09-30 23:41:07 +02:00