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Add FDT attachment. Flag lost functionality with FDT_HACKS so we can

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find it later.
This commit is contained in:
Warner Losh 2014-02-09 20:59:46 +00:00
parent bc259c9157
commit 22a484c9d5
1 changed files with 26 additions and 1 deletions
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27
sys/arm/at91/at91_rst.c
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@ -23,6 +23,8 @@
* SUCH DAMAGE.
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@ -39,10 +41,19 @@ __FBSDID("$FreeBSD$");
#include <arm/at91/at91_rstreg.h>
#include <arm/at91/at91board.h>
#ifdef FDT
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#define FDT_HACKS 1
#endif
#define RST_TIMEOUT (5) /* Seconds to hold NRST for hard reset */
#define RST_TICK (20) /* sample NRST at hz/RST_TICK intervals */
#ifndef FDT
static int at91_rst_intr(void *arg);
#endif
static struct at91_rst_softc {
struct resource *mem_res; /* Memory resource */
@ -93,6 +104,10 @@ at91_rst_cpu_reset(void)
static int
at91_rst_probe(device_t dev)
{
#ifdef FDT
if (!ofw_bus_is_compatible(dev, "atmel,at91sam9260-rstc"))
return (ENXIO);
#endif
device_set_desc(dev, "AT91SAM9 Reset Controller");
return (0);
@ -103,7 +118,7 @@ at91_rst_attach(device_t dev)
{
struct at91_rst_softc *sc;
const char *cause;
int rid, err;
int rid, err = 0;
at91_rst_sc = sc = device_get_softc(dev);
sc->sc_dev = dev;
@ -118,6 +133,8 @@ at91_rst_attach(device_t dev)
err = ENOMEM;
goto out;
}
#ifndef FDT_HACKS
rid = 0;
sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE | RF_SHAREABLE);
@ -132,6 +149,7 @@ at91_rst_attach(device_t dev)
at91_rst_intr, NULL, sc, &sc->intrhand);
if (err)
device_printf(dev, "could not establish interrupt handler.\n");
#endif
WR4(at91_rst_sc, RST_MR, RST_MR_ERSTL(0xd) | RST_MR_URSIEN | RST_MR_KEY);
@ -161,6 +179,7 @@ at91_rst_attach(device_t dev)
return (err);
}
#ifndef FDT_HACKS
static void
at91_rst_tick(void *argp)
{
@ -191,6 +210,7 @@ at91_rst_intr(void *argp)
}
return (FILTER_STRAY);
}
#endif
static device_method_t at91_rst_methods[] = {
DEVMETHOD(device_probe, at91_rst_probe),
@ -206,5 +226,10 @@ static driver_t at91_rst_driver = {
static devclass_t at91_rst_devclass;
#ifdef FDT
DRIVER_MODULE(at91_rst, simplebus, at91_rst_driver, at91_rst_devclass, NULL,
NULL);
#else
DRIVER_MODULE(at91_rst, atmelarm, at91_rst_driver, at91_rst_devclass, NULL,
NULL);
#endif