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Add support for probing/attaching on FDT-based systems.

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This commit is contained in:
Ian Lepore 2019-02-24 23:16:33 +00:00
parent 4b06839fbf
commit b9f8045598
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=344506
1 changed files with 29 additions and 1 deletions
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30
sys/dev/flash/at45d.c
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@ -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