starfive-tech/opensbi.git/lib/utils/serial, branch SDK_v2.1.0

lib: utils/serial: Round UART8250 baud rate divisor to nearest integer

2022-02-04T05:46:29+00:00

Previously, it was rounded down and that gives suboptimal results when non-standard clock sources or baud rates are used. Signed-off-by: Jakub Luzny Reviewed-by: Anup Patel

lib: fix pointer of type 'void *' used in arithmetic

2022-01-21T16:28:12+00:00

Using "void *" in arithmetic causes errors with strict compiler settings: "error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith]" Avoid these by calculating on "char *" where 1-byte data size is assumed. Signed-off-by: Jukka Laitinen Reviewed-by: Dong Du Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils/sys: Extend HTIF library to allow custom base address

2022-01-11T12:47:49+00:00

Some of RISC-V emulators provide HTIF at fixed base address so for such emulators users have to hard-code HTIF base address in the linker script. To address this problem, we let users optionally provide fixed HTIF base address via platform support (or device tree). Signed-off-by: Anup Patel Reviewed-by: Dong Du Reviewed-by: Atish Patra

lib: utils: Add LiteX UART support

2021-11-18T07:52:02+00:00

Add support for the UART provided by the LiteX SoC framework (https://github.com/enjoy-digital/litex), based on its FDT info (described in the Linux tree at Documentation/devicetree/bindings/serial/litex,liteuart.yaml). Signed-off-by: Gabriel Somlo Reviewed-by: Xiang W Reviewed-by: Anup Patel

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

2021-11-02T05:53:16+00:00

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: consider ':' in stdout-path

2021-06-02T11:36:17+00:00

The value of the /chosen/stdout-path devicetree property is used to determine the UART used by openSBI. According to the devicetree specification the value may contain a hyphen, e.g. chosen { stdout-path = "/serial@f00:115200"; }; If the character ':' is present, it terminates the path of the device. Signed-off-by: Heinrich Schuchardt Reviewed-by: Atish Patra

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

2021-05-24T10:19:21+00:00

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: utils/serial: Support Synopsys DesignWare APB UART

2021-05-19T07:33:19+00:00

Synopsys DesignWare APB UART is seen on the StarFive JH7100 SoC. Its programming interface is compatible with the existing 8250 UART driver. Simply add its compatible string to the driver makes it work with the StarFive JH7100 SoC on a BeagleV board. With this patch, the generic platform firmware can be used out of the box on the BeagleV board. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils/serial: Add support for Gaisler APBUART

2021-05-06T08:51:07+00:00

This patch adds support for the UART used by the NOEL-V processor. Cobham Gaisler's NOEL-V RISC-V processor IP is available under GPL and commercial license and is described in more detail at https://www.gaisler.com/noelv. Signed-off-by: Daniel Cederman Reviewed-by: Anup Patel Reviewed-by: Bin Meng

lib: sbi: Simplify console platform operations

2021-04-28T11:28:23+00:00

Instead of having console_putc() and console_getc() callbacks in platform operations, it will be much simpler for console driver to directly register these operations as device to the sbi_console implementation. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Xiang W