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lib: utils: serial: Initial commit of xlnx-uartlite

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Initial commit of the xlnx-uartlite device and FDT support. This was
tested by running OpenSBI on a modified QEMU virt machine using the
xlnx-uartlite for serial.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Alistair Francis
2022-02-24 15:01:46 +10:00
committed by Anup Patel
parent f3f4604c19
commit 4998a712b2
7 changed files with 144 additions and 1 deletions
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18
lib/utils/fdt/fdt_helper.c
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@@ -467,6 +467,24 @@ int fdt_parse_uart8250(void *fdt, struct platform_uart_data *uart,
return fdt_parse_uart8250_node(fdt, nodeoffset, uart);
}
int fdt_parse_xlnx_uartlite_node(void *fdt, int nodeoffset,
struct platform_uart_data *uart)
{
int rc;
uint64_t reg_addr, reg_size;
if (nodeoffset < 0 || !uart || !fdt)
return SBI_ENODEV;
rc = fdt_get_node_addr_size(fdt, nodeoffset, 0,
&reg_addr, &reg_size);
if (rc < 0 || !reg_addr || !reg_size)
return SBI_ENODEV;
uart->addr = reg_addr;
return 0;
}
int fdt_parse_aplic_node(void *fdt, int nodeoff, struct aplic_data *aplic)
{
bool child_found;