Index: linux-2.6.19/drivers/net/ixp4xx/Kconfig
===================================================================
--- linux-2.6.19.orig/drivers/net/ixp4xx/Kconfig
+++ linux-2.6.19/drivers/net/ixp4xx/Kconfig
@@ -11,6 +11,7 @@ config IXP4XX_NPE
tristate "IXP4xx NPE support"
depends on ARCH_IXP4XX
depends on NET_ETHERNET
+ select CRC16
help
The IXP4XX NPE driver supports the 3 CPU co-processors called
"Network Processing Engines" (NPE). It adds support fo downloading
@@ -18,7 +19,7 @@ config IXP4XX_NPE
More about this at: Documentation/networking/ixp4xx/README.
You can either use this OR the Intel Access Library (IAL)
-config IXP4XX_FW_LOAD
+config IXP4XX_NPE_FW_LOAD
bool "Use Firmware hotplug for Microcode download"
depends on IXP4XX_NPE
select HOTPLUG
@@ -28,6 +29,13 @@ config IXP4XX_FW_LOAD
/usr/lib/hotplug/firmware/NPE-[ABC]
see Documentation/firmware_class/hotplug-script
+config IXP4XX_NPE_FW_MTD
+ bool "Load firmware from an mtd partition"
+ depends on IXP4XX_NPE && MTD_IXP4XX
+ help
+ With this option, the driver will search for
+ the firmware into an MTD partition.
+
config IXP4XX_MAC
tristate "IXP4xx MAC support"
depends on IXP4XX_NPE
Index: linux-2.6.19/drivers/net/ixp4xx/Makefile
===================================================================
--- linux-2.6.19.orig/drivers/net/ixp4xx/Makefile
+++ linux-2.6.19/drivers/net/ixp4xx/Makefile
@@ -1,6 +1,7 @@
obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
obj-$(CONFIG_IXP4XX_NPE) += ixp4xx_npe.o
obj-$(CONFIG_IXP4XX_MAC) += ixp4xx_mac.o
+obj-$(CONFIG_IXP4XX_NPE_FW_MTD) += npe_ucode.o
ixp4xx_npe-objs := ucode_dl.o npe_mh.o
ixp4xx_mac-objs := mac_driver.o qmgr_eth.o phy.o
Index: linux-2.6.19/drivers/net/ixp4xx/npe_ucode.c
===================================================================
--- /dev/null
+++ linux-2.6.19/drivers/net/ixp4xx/npe_ucode.c
@@ -0,0 +1,185 @@
+/*
+ * Provide an NPE platform device for microcode handling
+ *
+ * Copyright (C) 2006 Christian Hohnstaedt <chohnstaedt@innominate.com>
+ *
+ * This file is released under the GPLv2
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/firmware.h>
+#include <linux/mtd/mtd.h>
+
+#include <linux/ixp_npe.h>
+
+#define DL_MAGIC 0xfeedf00d
+#define DL_MAGIC_SWAP 0x0df0edfe
+
+#define IMG_SIZE(image) (((image)->size * sizeof(u32)) + \
+ sizeof(struct dl_image))
+
+#define IMG_REV_MAJOR(id) (((id) >> 8) & 0x0f)
+#define IMG_REV_MINOR(id) ((id) & 0x0f)
+#define IMG_FUNC(id) (((id) >> 16) & 0xff)
+#define IMG_NPE(id) (((id) >> 24) & 0x0f)
+#define IMG_IXP(id) (((id) >> 28) & 0x0f)
+
+static struct platform_driver ixp4xx_npe_ucode_driver;
+static unsigned char *partition_name = NULL;
+
+static void print_image_info(u32 id, u32 offset, u32 size)
+{
+ unsigned char idx;
+ const char *names[] = { "IXP425", "IXP465", "unknown" };
+
+ idx = IMG_IXP(id) < 2 ? IMG_IXP(id) : 2;
+
+ printk(KERN_INFO "npe: found at 0x%x, %s/NPE-%c func: %02x, rev: %x.%x, "
+ "size: %5d, id: %08x\n", offset, names[idx], IMG_NPE(id) + 'A',
+ IMG_FUNC(id), IMG_REV_MAJOR(id), IMG_REV_MINOR(id), size, id);
+}
+
+void npe_swap_image(struct dl_image *image)
+{
+ unsigned int i;
+
+ image->magic = swab32(image->magic);
+ image->id = swab32(image->id);
+ image->size = swab32(image->size);
+
+ for (i = 0; i < image->size; i++)
+ image->u.data[i] = swab32(image->u.data[i]);
+}
+
+static void npe_find_microcode(struct mtd_info *mtd)
+{
+ u32 buf;
+ u32 magic = htonl(DL_MAGIC);
+ u32 id, size;
+ size_t retlen;
+ int err;
+ unsigned int offset = 0;
+
+ printk("npe: searching for firmware...\n");
+
+ while (offset < mtd->size) {
+
+ err = mtd->read(mtd, offset, 4, &retlen, (u_char *) &buf);
+ offset += retlen;
+
+ if (buf != magic)
+ continue;
+
+ err = mtd->read(mtd, offset, 4, &retlen, (u_char *) &id);
+ offset += retlen;
+
+ if (id == magic)
+ break;
+
+ id = ntohl(id);
+
+ err = mtd->read(mtd, offset, 4, &retlen, (u_char *) &size);
+ offset += retlen;
+
+ size = (ntohl(size) * 4) + 12;
+
+ print_image_info(id, offset - 12, size);
+
+ if (size < 24000 && ( IMG_FUNC(id) == 0x01 || IMG_FUNC(id) == 0x00) ) { // XXX fix size/detection
+
+ struct dl_image *image = kmalloc(size, GFP_KERNEL);
+
+ /* we are going to load it, rewind offset */
+ offset -= 12;
+
+ if (image) {
+ err = mtd->read(mtd, offset, size, &retlen, (u_char *) image);
+
+ if (err == 0 && retlen == size) {
+ if (image->magic == DL_MAGIC_SWAP)
+ npe_swap_image(image);
+
+ store_npe_image(image, NULL);
+ } else {
+ printk(KERN_ERR "unable to read firmware\n");
+ }
+
+ kfree(image);
+ }
+
+ offset += size;
+ }
+ }
+}
+
+static void npe_flash_add(struct mtd_info *mtd)
+{
+ if (partition_name == NULL)
+ return;
+
+ if (strcmp(mtd->name, partition_name) == 0) {
+ npe_find_microcode(mtd);
+ }
+}
+
+static void npe_flash_remove(struct mtd_info *mtd) {
+}
+
+static struct mtd_notifier npe_flash_notifier = {
+ .add = npe_flash_add,
+ .remove = npe_flash_remove,
+};
+
+static int npe_ucode_probe(struct platform_device *pdev)
+{
+ struct npe_ucode_platform_data *data = pdev->dev.platform_data;
+
+ if (partition_name)
+ return -EEXIST;
+
+ if (data && data->mtd_partition) {
+ partition_name = data->mtd_partition;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int npe_ucode_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver ixp4xx_npe_ucode_driver = {
+ .driver = {
+ .name = "ixp4xx_npe_ucode",
+ .owner = THIS_MODULE,
+ },
+ .probe = npe_ucode_probe,
+ .remove = npe_ucode_remove,
+};
+
+static int __init npe_ucode_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&ixp4xx_npe_ucode_driver);
+ register_mtd_user(&npe_flash_notifier);
+
+ return ret;
+}
+
+static void __exit npe_ucode_exit(void)
+{
+ unregister_mtd_user(&npe_flash_notifier);
+ platform_driver_unregister(&ixp4xx_npe_ucode_driver);
+}
+
+module_init(npe_ucode_init);
+module_exit(npe_ucode_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
Index: linux-2.6.19/drivers/net/ixp4xx/ucode_dl.c
===================================================================
--- linux-2.6.19.orig/drivers/net/ixp4xx/ucode_dl.c
+++ linux-2.6.19/drivers/net/ixp4xx/ucode_dl.c
@@ -16,6 +16,7 @@
#include <linux/firmware.h>
#include <linux/dma-mapping.h>
#include <linux/byteorder/swab.h>
+#include <linux/crc16.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -30,6 +31,12 @@
#define IMG_SIZE(image) (((image)->size * sizeof(u32)) + \
sizeof(struct dl_image))
+#define IMG_REV_MAJOR(id) (((id) >> 8) & 0x0f)
+#define IMG_REV_MINOR(id) ((id) & 0x0f)
+#define IMG_FUNC(id) (((id) >> 16) & 0xff)
+#define IMG_NPE(id) (((id) >> 24) & 0x0f)
+#define IMG_IXP(id) (((id) >> 28) & 0x0f)
+
#define BT_INSTR 0
#define BT_DATA 1
@@ -38,21 +45,6 @@ enum blk_type {
data,
};
-struct dl_block {
- u32 type;
- u32 offset;
-};
-
-struct dl_image {
- u32 magic;
- u32 id;
- u32 size;
- union {
- u32 data[0];
- struct dl_block block[0];
- } u;
-};
-
struct dl_codeblock {
u32 npe_addr;
u32 size;
@@ -134,23 +126,41 @@ struct device *get_npe_by_id(int id)
&id, match_by_npeid);
}
-static int store_npe_image(struct dl_image *image, struct device *dev)
+int store_npe_image(struct dl_image *image, struct device *dev)
{
struct dl_block *blk;
struct dl_codeblock *cb;
struct npe_info *npe;
- int ret=0;
+ int ret = 0;
+ u16 crc;
if (!dev) {
- dev = get_npe_by_id( (image->id >> 24) & 0xf);
- put_device(dev);
+ dev = get_npe_by_id(IMG_NPE(image->id));
+ if (dev)
+ put_device(dev);
+ // XXX shouldn't this put_device be outside if(!dev) ?
+ else
+ printk(KERN_ERR "npe: cannot find npe for image %x\n", IMG_NPE(image->id));
}
+
if (!dev)
return -ENODEV;
+ if (image->size > 24000) { // XXX fix max size
+ printk(KERN_ERR "npe: firmware too large\n");
+ return -EFBIG;
+ }
+
+ if (IMG_REV_MAJOR(image->id) != 2) {
+ printk(KERN_ERR "npe: only revision 2 is supported at this time\n");
+ return -EINVAL;
+ }
+
+ crc = crc16(0, (u8 *) image, IMG_SIZE(image));
+
npe = dev_get_drvdata(dev);
- if ( npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
+ if (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN) {
printk(KERN_INFO "Cowardly refusing to reload an Image "
"into the running %s\n", npe->plat->name);
return 0; /* indicate success anyway... */
@@ -173,9 +183,9 @@ static int store_npe_image(struct dl_ima
*(u32*)npe->img_info = cpu_to_be32(image->id);
npe_start(npe);
- printk(KERN_INFO "Image loaded to %s Func:%x, Rel: %x:%x, Status: %x\n",
+ printk(KERN_INFO "npe: firmware loaded to %s, func: %02x, rev: %x.%x, status: %x, crc: %x\n",
npe->plat->name, npe->img_info[1], npe->img_info[2],
- npe->img_info[3], npe_status(npe));
+ npe->img_info[3], npe_status(npe), crc);
return 0;
}
@@ -265,8 +275,7 @@ static ssize_t ucode_write(struct file *
static void npe_firmware_probe(struct device *dev)
{
-#if (defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)) \
- && defined(MODULE)
+#ifdef CONFIG_IXP4XX_NPE_FW_LOADER
const struct firmware *fw_entry;
struct npe_info *npe = dev_get_drvdata(dev);
struct dl_image *image;
@@ -388,7 +397,7 @@ static int npe_probe(struct platform_dev
npe->plat = plat;
disable_npe_irq(npe);
- if (! (npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN))
+ if (!(npe_status(npe) & IX_NPEDL_EXCTL_STATUS_RUN))
npe_firmware_probe(&pdev->dev);
return 0;
@@ -464,3 +473,4 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Christian Hohnstaedt <chohnstaedt@innominate.com>");
EXPORT_SYMBOL(get_npe_by_id);
+EXPORT_SYMBOL(store_npe_image);
Index: linux-2.6.19/include/asm-arm/arch-ixp4xx/platform.h
===================================================================
--- linux-2.6.19.orig/include/asm-arm/arch-ixp4xx/platform.h
+++ linux-2.6.19/include/asm-arm/arch-ixp4xx/platform.h
@@ -86,6 +86,20 @@ struct ixp4xx_i2c_pins {
unsigned long scl_pin;
};
+struct dl_block {
+ u32 type;
+ u32 offset;
+};
+
+struct dl_image {
+ u32 magic;
+ u32 id;
+ u32 size;
+ union {
+ u32 data[0];
+ struct dl_block block[0];
+ } u;
+};
struct npe_plat_data {
const char *name;
int data_size;
@@ -103,6 +117,9 @@ struct mac_plat_info {
unsigned char hwaddr[6]; /* Desired hardware address */
};
+struct npe_ucode_platform_data {
+ unsigned char *mtd_partition;
+};
struct sys_timer;
Index: linux-2.6.19/include/linux/ixp_npe.h
===================================================================
--- linux-2.6.19.orig/include/linux/ixp_npe.h
+++ linux-2.6.19/include/linux/ixp_npe.h
@@ -71,6 +71,7 @@ static inline u32 npe_read_ecs_reg(struc
}
extern struct device *get_npe_by_id(int id);
+extern int store_npe_image(struct dl_image *image, struct device *dev);
/* NPE Messages */
extern int