From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/x86/include/asm/serial.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 arch/x86/include/asm/serial.h (limited to 'arch/x86/include/asm/serial.h') diff --git a/arch/x86/include/asm/serial.h b/arch/x86/include/asm/serial.h new file mode 100644 index 000000000..ece8299d2 --- /dev/null +++ b/arch/x86/include/asm/serial.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_SERIAL_H +#define _ASM_X86_SERIAL_H + +/* + * This assumes you have a 1.8432 MHz clock for your UART. + * + * It'd be nice if someone built a serial card with a 24.576 MHz + * clock, since the 16550A is capable of handling a top speed of 1.5 + * megabits/second; but this requires a faster clock. + */ +#define BASE_BAUD (1843200/16) + +/* Standard COM flags (except for COM4, because of the 8514 problem) */ +#ifdef CONFIG_SERIAL_8250_DETECT_IRQ +# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ) +# define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | UPF_AUTO_IRQ) +#else +# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | 0 ) +# define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | 0 ) +#endif + +#define SERIAL_PORT_DFNS \ + /* UART CLK PORT IRQ FLAGS */ \ + { .uart = 0, BASE_BAUD, 0x3F8, 4, STD_COMX_FLAGS }, /* ttyS0 */ \ + { .uart = 0, BASE_BAUD, 0x2F8, 3, STD_COMX_FLAGS }, /* ttyS1 */ \ + { .uart = 0, BASE_BAUD, 0x3E8, 4, STD_COMX_FLAGS }, /* ttyS2 */ \ + { .uart = 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */ + +#endif /* _ASM_X86_SERIAL_H */ -- cgit v1.2.3