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Add support for dynamic flash partitions

This commit is contained in:
jmcneill 2017-11-13 17:36:39 +00:00
parent 40b9d3ee01
commit 10a1f0e4b0
2 changed files with 18 additions and 3 deletions
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18
sys/dev/nand/nand.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: nand.c,v 1.26 2017/11/09 21:50:15 jmcneill Exp $ */
/* $NetBSD: nand.c,v 1.27 2017/11/13 17:36:39 jmcneill Exp $ */
/*-
* Copyright (c) 2010 Department of Software Engineering,
@ -34,7 +34,7 @@
/* Common driver for NAND chips implementing the ONFI 2.2 specification */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nand.c,v 1.26 2017/11/09 21:50:15 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: nand.c,v 1.27 2017/11/13 17:36:39 jmcneill Exp $");
#include "locators.h"
@ -188,8 +188,12 @@ nand_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
struct nand_chip *chip = &sc->sc_chip;
struct flash_attach_args faa;
if (cf->cf_loc[FLASHBUSCF_DYNAMIC] != 0)
return 0;
faa.flash_if = &nand_flash_if;
faa.partinfo.part_name = NULL;
faa.partinfo.part_offset = cf->cf_loc[FLASHBUSCF_OFFSET];
if (cf->cf_loc[FLASHBUSCF_SIZE] == 0) {
@ -215,6 +219,16 @@ nand_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
return 1;
}
void
nand_attach_mtdparts(device_t parent, const char *mtd_id, const char *cmdline)
{
struct nand_softc *sc = device_private(parent);
struct nand_chip *chip = &sc->sc_chip;
flash_attach_mtdparts(&nand_flash_if, parent, chip->nc_size,
mtd_id, cmdline);
}
int
nand_detach(device_t self, int flags)
{

3
sys/dev/nand/nand.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: nand.h,v 1.17 2017/11/09 21:50:15 jmcneill Exp $ */
/* $NetBSD: nand.h,v 1.18 2017/11/13 17:36:39 jmcneill Exp $ */
/*-
* Copyright (c) 2010 Department of Software Engineering,
@ -468,6 +468,7 @@ int nand_read_oob(device_t, size_t, uint8_t *);
device_t nand_attach_mi(struct nand_interface *, device_t);
void nand_init_interface(struct nand_interface *);
void nand_attach_mtdparts(device_t, const char *, const char *);
/* controller drivers may use these functions to get info about the chip */
void nand_read_id(device_t, uint8_t *, uint8_t *);