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Index: sys/dev/uart/uart_bus_pci.c
===================================================================
--- sys/dev/uart/uart_bus_pci.c
+++ sys/dev/uart/uart_bus_pci.c
@@ -43,6 +43,7 @@
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
+#include <dev/uart/uart_cpu.h>
#define DEFAULT_RCLK 1843200
@@ -190,10 +191,13 @@
return ((id->vendor == vendor && id->device == device) ? id : NULL);
}
+extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
+
static int
uart_pci_probe(device_t dev)
{
struct uart_softc *sc;
+ struct uart_devinfo *sysdev;
const struct pci_id *id;
int result;
@@ -208,6 +212,16 @@
return (ENXIO);
match:
+ SLIST_FOREACH(sysdev, &uart_sysdevs, next) {
+ if (sysdev->pci_info.vendor == pci_get_vendor(dev)
+ && sysdev->pci_info.device == pci_get_device(dev)
+ && sysdev->pci_info.bus == pci_get_bus(dev)
+ && sysdev->pci_info.slot == pci_get_slot(dev)) {
+ sc->sc_sysdev = sysdev;
+ sysdev->bas.rclk = sc->sc_bas.rclk;
+ }
+ }
+
result = uart_bus_probe(dev, id->regshft, 0, id->rclk, id->rid, 0, 0);
/* Bail out on error. */
if (result > 0)
Index: sys/dev/uart/uart_cpu.h
===================================================================
--- sys/dev/uart/uart_cpu.h
+++ sys/dev/uart/uart_cpu.h
@@ -52,6 +52,16 @@
extern bus_space_tag_t uart_bus_space_io;
extern bus_space_tag_t uart_bus_space_mem;
+/*
+ * PCI bus address from the ACPI SPCR table.
+ */
+struct uart_pci_info {
+ uint16_t vendor;
+ uint16_t device;
+ uint8_t bus;
+ uint8_t slot;
+};
+
/*
* Console and debug port device info.
*/
@@ -72,6 +82,7 @@
void *cookie; /* Type dependent use. */
struct mtx *hwmtx;
struct uart_softc *sc; /* valid only from start of attach */
+ struct uart_pci_info pci_info;
};
int uart_cpu_eqres(struct uart_bas *, struct uart_bas *);
Index: sys/dev/uart/uart_cpu_arm64.c
===================================================================
--- sys/dev/uart/uart_cpu_arm64.c
+++ sys/dev/uart/uart_cpu_arm64.c
@@ -109,7 +109,7 @@
static int
uart_cpu_acpi_probe(struct uart_class **classp, bus_space_tag_t *bst,
bus_space_handle_t *bsh, int *baud, u_int *rclk, u_int *shiftp,
- u_int *iowidthp)
+ u_int *iowidthp, struct uart_pci_info *pcip)
{
struct acpi_uart_compat_data *cd;
ACPI_TABLE_SPCR *spcr;
@@ -153,6 +153,21 @@
*shiftp = spcr->SerialPort.AccessWidth - 1;
*iowidthp = spcr->SerialPort.BitWidth / 8;
+ if (spcr->InterfaceType == ACPI_DBG2_ARM_SBSA_32BIT ||
+ (spcr->InterfaceType == ACPI_DBG2_ARM_PL011 &&
+ spcr->SerialPort.BitWidth == 32 &&
+ spcr->SerialPort.AccessWidth == 1)) {
+ /* PL011 on SBSA platforms uses 32-bit access, but on e.g.
+ * the Lenovo HR330A (Ampere eMAG), SPCR reports
+ * 32-bit width and 8-bit access */
+ *shiftp = 2;
+ }
+
+ pcip->vendor = spcr->PciVendorId;
+ pcip->device = spcr->PciDeviceId;
+ pcip->bus = spcr->PciBus;
+ pcip->slot = spcr->PciDevice;
+
out:
acpi_unmap_table(spcr);
return (err);
@@ -180,7 +195,7 @@
err = ENXIO;
#ifdef DEV_ACPI
err = uart_cpu_acpi_probe(&class, &bst, &bsh, &br, &rclk, &shift,
- &iowidth);
+ &iowidth, &di->pci_info);
#endif
#ifdef FDT
if (err != 0) {

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