blob: 86d207620ab9425fb00da7e960edae148a5ee4ce [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
#if CONFIG(ACPI_CONSOLE)
#include <soc/iomap.h>
Name (UFLG, CONFIG(CONSOLE_SERIAL))
Method (LURT, 1, Serialized)
{
If (Arg0 == 0) { /* 0 = 0x3f8 */
Local0 = 0x3f8
} ElseIf (Arg0 == 1) { /* 1 = 0x2f8 */
Local0 = 0x2f8
} ElseIf (Arg0 == 2) { /* 2 = 0x3e8 */
Local0 = 0x3e8
} ElseIf (Arg0 == 3) { /* 3 = 0x2e8 */
Local0 = 0x2e8
}
Return (Local0)
}
Method (APRT, 1, Serialized)
{
Name(OPDT, 0)
Name(INDX, 0)
Name(LENG, 0)
Name(ADBG, Buffer(256) {0})
If (ObjectType(Arg0) == 1) { /* Integer */
ToHexString(Arg0, Local0)
ADBG = Local0
} ElseIf (ObjectType(Arg0) == 2) { /* String */
ADBG = Arg0
} ElseIf (ObjectType(Arg0) == 3) { /* Buffer */
ToHexString(Arg0, ADBG)
} Else {
ADBG = "This type of object is not supported"
}
While (DeRefOf(ADBG[INDX]) != 0)
{
INDX++
}
LENG = INDX /* Length of the String */
#if CONFIG(DRIVERS_UART_8250MEM_32)
OperationRegion (UBAR, SystemMemory,
CONFIG_CONSOLE_UART_BASE_ADDRESS, 24)
Field (UBAR, AnyAcc, NoLock, Preserve)
{
TDR, 8, /* Transmit Data Register BAR + 0x000 */
, 24,
IER, 8, /* Interrupt Enable Register BAR + 0x004 */
, 24,
IIR, 8, /* Interrupt Identification Register BAR + 0x008 */
, 24,
LCR, 8, /* Line Control Register BAR + 0x00C */
, 24,
MCR, 8, /* Modem Control Register BAR + 0x010 */
, 24,
LSR, 8, /* Line Status Register BAR + 0x014 */
, 24
}
#else
OperationRegion (UBAR, SystemIO, LURT (CONFIG_UART_FOR_CONSOLE), 6)
Field (UBAR, ByteAcc, NoLock, Preserve)
{
TDR, 8, /* Transmit Data Register IO Port + 0x0 */
IER, 8, /* Interrupt Enable Register IO Port + 0x1 */
IIR, 8, /* Interrupt Identification Register IO Port + 0x2 */
LCR, 8, /* Line Control Register IO Port + 0x3 */
MCR, 8, /* Modem Control Register IO Port + 0x4 */
LSR, 8 /* Line Status Register IO Port + 0x5 */
}
#endif
If (UFLG == 0) {
/* Enable Baud Rate Divisor Latch, Set Word length to 8 bit*/
LCR = 0x83
IIR = 0x01
MCR = 0x03
/* Configure baud rate to 115200 */
TDR = 0x01
IER = 0x00
LCR = 0x03 /* Disable Baud Rate Divisor Latch */
UFLG++
}
INDX = 0x00
While (INDX < LENG)
{
/* Wait for the transmitter t to be ready */
While (1)
{
OPDT = LSR & 0x20
If (OPDT != 0)
{
Break
}
}
TDR = DeRefOf (ADBG[INDX])
INDX++
}
} /* End of APRT */
#endif