Author: cperciva
Date: Fri Mar 22 06:21:03 2019
New Revision: 345405
URL: https://svnweb.freebsd.org/changeset/base/345405
Log:
Obey SPCR AccessWidth parameter.
The "access width" value was hard-coded as 2, indicating 32-bit accesses;
instead, use the value specified in the SPCR table.
This unbreaks the console on EC2 "A1" family instances.
Submitted by: Greg V
Modified:
head/sys/dev/uart/uart_cpu_arm64.c
Modified: head/sys/dev/uart/uart_cpu_arm64.c
==============================================================================
--- head/sys/dev/uart/uart_cpu_arm64.c Fri Mar 22 06:02:06 2019
(r345404)
+++ head/sys/dev/uart/uart_cpu_arm64.c Fri Mar 22 06:21:03 2019
(r345405)
@@ -149,7 +149,7 @@ uart_cpu_acpi_probe(struct uart_class **classp, bus_sp
*classp = cd->cd_class;
*rclk = 0;
- *shiftp = 2;
+ *shiftp = spcr->SerialPort.AccessWidth - 1;
*iowidthp = spcr->SerialPort.BitWidth / 8;
out:
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