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NOR flash driver for XLP.

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The NOR interface on the SoC appears on the top level PCI bus. Add
a simple driver for this.
This commit is contained in:
Jayachandran C. 2012-03-27 15:16:38 +00:00
parent f19ebc89a3
commit 2652f84c92
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=233556
4 changed files with 93 additions and 0 deletions
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4
sys/mips/conf/std.XLP
View File

@ -106,3 +106,7 @@ device nlmrsa
# Options that use crypto
options IPSEC
options GEOM_ELI
# NOR
device cfi
device cfid

77
sys/mips/nlm/dev/cfi_pci_xlp.c Normal file
View File

@ -0,0 +1,77 @@
/*-
* Copyright (c) 2003-2012 Broadcom Corporation
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/cfi/cfi_var.h>
#include <mips/nlm/hal/haldefs.h>
#include <mips/nlm/hal/iomap.h>
static int cfi_xlp_probe(device_t dev);
static device_method_t cfi_xlp_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, cfi_xlp_probe),
DEVMETHOD(device_attach, cfi_attach),
DEVMETHOD(device_detach, cfi_detach),
DEVMETHOD_END
};
static driver_t cfi_xlp_driver = {
cfi_driver_name,
cfi_xlp_methods,
sizeof(struct cfi_softc),
};
static int
cfi_xlp_probe(device_t dev)
{
if (pci_get_vendor(dev) != PCI_VENDOR_NETLOGIC ||
pci_get_device(dev) != PCI_DEVICE_ID_NLM_NOR)
return (ENXIO);
device_set_desc(dev, "Netlogic XLP NOR Bus");
return (cfi_probe(dev));
}
DRIVER_MODULE(cfi_xlp, pci, cfi_xlp_driver, cfi_devclass, 0, 0);

1
sys/mips/nlm/files.xlp
View File

@ -18,6 +18,7 @@ mips/nlm/usb_init.c optional usb
#
# Simple SoC devices
mips/nlm/dev/uart_pci_xlp.c optional uart
mips/nlm/dev/cfi_pci_xlp.c optional cfi
#
# Network driver and micro-core code
mips/nlm/dev/net/nae.c optional xlpge

11
sys/mips/nlm/xlp_pci.c
View File

@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
#include <mips/nlm/hal/mips-extns.h>
#include <mips/nlm/hal/pic.h>
#include <mips/nlm/hal/bridge.h>
#include <mips/nlm/hal/gbu.h>
#include <mips/nlm/hal/pcibus.h>
#include <mips/nlm/hal/uart.h>
#include <mips/nlm/xlp.h>
@ -479,6 +480,7 @@ assign_soc_resource(device_t child, int type, u_long *startp, u_long *endp,
u_long *countp, struct rman **rm, bus_space_tag_t *bst, vm_offset_t *va)
{
int devid, inst, node, unit;
uint32_t val;
devid = pci_get_device(child);
inst = pci_get_function(child);
@ -506,6 +508,15 @@ assign_soc_resource(device_t child, int type, u_long *startp, u_long *endp,
*rm = &emul_rman;
*bst = uart_bus_space_mem;
break;
case PCI_DEVICE_ID_NLM_NOR:
/* XXXJC: support multiple chip selects */
val = nlm_read_pci_reg(nlm_get_gbu_regbase(node), 0);
*startp = val << 8;
*va = MIPS_PHYS_TO_KSEG1(*startp);
/* XXXJC: count is not correct */
*countp = 0x100;
*rm = &emul_rman;
break;
}
/* calculate end if allocated */
if (*rm)