opensbi.git/lib/utils/serial, branch v1.2

lib: utils: serial: Add FDT driver for Renesas SCIF

2022-12-12T13:20:35Z

Add FDT driver for Renesas SCIF. dts example: soc: soc { .... scif0: serial@1004b800 { compatible = "renesas,scif-r9a07g043", "renesas,scif-r9a07g044"; reg = <0 0x1004b800 0 0x400>; interrupts = <412 IRQ_TYPE_LEVEL_HIGH>, <414 IRQ_TYPE_LEVEL_HIGH>, <415 IRQ_TYPE_LEVEL_HIGH>, <413 IRQ_TYPE_LEVEL_HIGH>, <416 IRQ_TYPE_LEVEL_HIGH>, <416 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "eri", "rxi", "txi", "bri", "dri", "tei"; clocks = <&cpg CPG_MOD R9A07G043_SCIF0_CLK_PCK>; clock-names = "fck"; power-domains = <&cpg>; resets = <&cpg R9A07G043_SCIF0_RST_SYSTEM_N>; status = "disabled"; }; .... }; Signed-off-by: Lad Prabhakar Reviewed-by: Anup Patel

lib: utils: serial: Add Renesas SCIF driver

2022-12-12T13:20:26Z

Add Renesas SCIF driver. Based on a patch in the BSP by Takeki Hamada Link: https://github.com/renesas-rz/rz_opensbi/commits/work/OpenSBI-PMA Signed-off-by: Lad Prabhakar Reviewed-by: Anup Patel

lib: utils/serial: Fix semihosting compile error using LLVM

2022-11-15T11:08:41Z

We fix the following semihosting compile error observed using LLVM: lib/utils/serial/semihosting.c:158:12: error: result of comparison of constant -1 with expression of type 'char' is always true [-Werror,-Wtautological-constant-out-of-range-compare] ret = ch > -1 ? ch : -1; ~~ ^ ~~ Fixes: 7f09fba86e43 ("lib: utils/serial: add semihosting support") Signed-off-by: Anup Patel Reviewed-by: Xiang W Reviewed-by: Bin Meng

lib: utils/serial: add semihosting support

2022-09-13T12:54:42Z

We add RISC-V semihosting based serial console for JTAG based early debugging. The RISC-V semihosting specification is available at: https://github.com/riscv/riscv-semihosting-spec/blob/main/riscv-semihosting-spec.adoc Signed-off-by: Anup Patel Signed-off-by: Kautuk Consul Reviewed-by: Anup Patel

lib: utils: serial: Add Cadence UART driver

2022-08-23T03:10:17Z

Add Cadence UART driver Signed-off-by: Jun Liang Tan Signed-off-by: Wei Liang Lim Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: utils/fdt: Use kconfig for enabling/disabling

2022-08-08T04:04:08Z

We update FDT support makefile to use kconfig for enabling/disabling. To avoid compilation errors, we also enable FDT for each platform. Signed-off-by: Anup Patel Tested-by: Andrew Jones Acked-by: Atish Patra Tested-by: Atish Patra

lib: utils/sys: Use kconfig for enabling/disabling drivers

2022-08-08T04:03:31Z

We update system drivers makefile to use kconfig for enabling/disabling drivers. To avoid compile errors, we also enable appropriate system drivers for each platform. Signed-off-by: Anup Patel Tested-by: Andrew Jones Acked-by: Atish Patra Tested-by: Atish Patra

lib: utils/serial: Use kconfig for enabling/disabling drivers

2022-08-08T04:03:21Z

We update serial drivers makefile to use kconfig for enabling/disabling drivers. To avoid compile errors, we also enable appropriate serial drivers for each platform. Signed-off-by: Anup Patel Tested-by: Andrew Jones Acked-by: Atish Patra Tested-by: Atish Patra

lib: utils/serial: Ensure baudrate is non-zero before using

2022-07-30T06:09:42Z

RISC-V doesn't generate exceptions on divide-by-zero, but the result, all bits set, is not likely what people expect either. In all cases where we divide by baudrate there's a chance it's zero (when the DT it came from is "bad"). To avoid difficult to debug situations, leave baudrate dependent registers alone when baudrate is zero, as, also in all cases, it appears we can skip initialization of those registers and still [hopefully] have a functioning UART. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

lib: serial: Clean up coding style in sifive-uart.c

2022-07-30T06:09:19Z

Signed-off-by: Andrew Jones Reviewed-by: Xiang W Reviewed-by: Anup Patel