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Add fdt binding for nand for Atmel parts. This does little more than

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match the device. Pinctrl will need to be added before this will work,
in addition to migrating the current board_foo.c method of configuring
these pins to something else. Non-FDT systems won't be affected, yet.
This commit is contained in:
imp 2014-02-28 02:38:04 +00:00
parent a7aada62d5
commit d25562aaf7
1 changed files with 17 additions and 2 deletions
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19
sys/dev/nand/nfc_at91.c
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@ -32,6 +32,8 @@
* is on the board.
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@ -57,6 +59,12 @@ __FBSDID("$FreeBSD$");
#include <dev/nand/nfc_at91.h>
#include <arm/at91/at91_smc.h>
#ifdef FDT
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#endif
/*
* Data cycles are triggered by access to any address within the EBI CS3 region
* that has A21 and A22 clear. Command cycles are any access with bit A21
@ -108,7 +116,10 @@ dev_write_1(struct at91_nand_softc *sc, bus_size_t offset, u_int8_t value)
static int
at91_nand_probe(device_t dev)
{
#ifdef FDT
if (!ofw_bus_is_compatible(dev, "atmel,at91rm9200-nand"))
return (ENXIO);
#endif
device_set_desc(dev, "AT91 Integrated NAND controller");
return (BUS_PROBE_DEFAULT);
}
@ -274,5 +285,9 @@ static driver_t at91_nand_driver = {
};
static devclass_t at91_nand_devclass;
DRIVER_MODULE(at91_nand, atmelarm, at91_nand_driver, at91_nand_devclass, 0, 0);
#ifdef FDT
DRIVER_MODULE(at91_nand, simplebus, at91_nand_driver, at91_nand_devclass, 0, 0);
#else
DRIVER_MODULE(at91_nand, atmelarm, at91_nand_driver, at91_nand_devclass, 0, 0);
#endif