opensbi.git/include/sbi_utils/serial/uart8250.h, branch master

lib: utils/serial: Support multiple UART8250 devices

2025-12-21T15:32:44Z

Previously we assume only 1 UART8250 instance can be used. Now we support multiple instances by introducing counterpart functions to putc/getc/init which take an extra *dev parameter, and name them as uart8250_device_xyz() The original functions without the *dev parameter will operate on the default instance exactly the same as before, so no changes on the caller is required. Note: uart8250_device_init only does device initialization without the console registration logic. Signed-off-by: Bo Gan Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20251218104243.562667-7-ganboing@gmail.com Signed-off-by: Anup Patel

lib: utils/serial: Add PXA UARTs support

2025-03-27T14:50:05Z

The PXA variant of the uart8250 adds the UART Unit Enable bit (UUE) that needs to be set to enable the XScale PXA UART. And it is required for some RISC-V SoCs like the Spacemit K1 that implement the PXA UART. This introduces the "intel,xscale-uart" compatible to handle setting the UUE bit. Signed-off-by: Junhui Liu Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250327-pxa-uart-support-v2-1-c4400c1fcd0b@pigmoral.tech Signed-off-by: Anup Patel

lib: utils/serial: support 'reg-offset' property

2022-04-17T08:27:48Z

reg-offset property is used for offset to apply to the mapbase from the start of the registers in 8250 UART. In Linux kernel, it has been handled in 8250 UART driver. dt-bindings: /Documentation/devicetree/bindings/serial/8250.yaml Signed-off-by: Zong Li Reviewed-by: Anup Patel

lib: sbi: Simplify console platform operations

2021-04-28T11:28:23Z

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

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