Author: ian
Date: Sun Feb 24 23:16:33 2019
New Revision: 344506
URL: https://svnweb.freebsd.org/changeset/base/344506
Log:
Add support for probing/attaching on FDT-based systems.
Modified:
head/sys/dev/flash/at45d.c
Modified: head/sys/dev/flash/at45d.c
==============================================================================
--- head/sys/dev/flash/at45d.c Sun Feb 24 23:08:53 2019 (r344505)
+++ head/sys/dev/flash/at45d.c Sun Feb 24 23:16:33 2019 (r344506)
@@ -47,6 +47,21 @@ __FBSDID("$FreeBSD$");
#include <dev/spibus/spi.h>
#include "spibus_if.h"
+#include "opt_platform.h"
+
+#ifdef FDT
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#include <dev/ofw/openfirm.h>
+
+static struct ofw_compat_data compat_data[] = {
+ { "atmel,at45", 1 },
+ { "atmel,dataflash", 1 },
+ { NULL, 0 },
+};
+SPIBUS_PNP_INFO(compat_data);
+#endif
+
struct at45d_flash_ident
{
const char *name;
@@ -187,9 +202,22 @@ at45d_wait_ready(device_t dev, uint8_t *status)
static int
at45d_probe(device_t dev)
{
+ int rv;
+#ifdef FDT
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
+ return (ENXIO);
+
+ rv = BUS_PROBE_DEFAULT;
+#else
+ rv = BUS_PROBE_NOWILDCARD;
+#endif
+
device_set_desc(dev, "AT45D Flash Family");
- return (0);
+ return (rv);
}
static int
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