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authorArnd Bergmann <arnd@arndb.de>2006-01-12 17:16:42 -0500
committerJeff Garzik <jgarzik@pobox.com>2006-01-17 07:25:00 -0500
commit030d6753f8b6251927330431a7e5f0ac86bc6da9 (patch)
tree12cab3e13f51b63ced212d2ac909c42ca8c10857 /drivers
parent0d3ea1666f1894a874681fe33e2cb7fee41a0c73 (diff)
downloadop-kernel-dev-030d6753f8b6251927330431a7e5f0ac86bc6da9.zip
op-kernel-dev-030d6753f8b6251927330431a7e5f0ac86bc6da9.tar.gz
[PATCH] spidernet: read firmware from the OF device tree
request_firmware() is sometimes problematic, especially in initramfs, reading the firmware from Open Firmware is much preferrable. We still try to get the firmware from the file system first, in order to support old SLOF releases and to allow updates of the spidernet firmware without reflashing the system. From: Jens Osterkamp <Jens.Osterkamp@de.ibm.com> Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/spider_net.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 2154469..94e238f 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -1895,16 +1895,27 @@ spider_net_download_firmware(struct spider_net_card *card,
static int
spider_net_init_firmware(struct spider_net_card *card)
{
- const struct firmware *firmware;
+ struct firmware *firmware;
+ struct device_node *dn;
+ u8 *fw_prop;
int err = -EIO;
- if (request_firmware(&firmware,
+ if (request_firmware((const struct firmware **)&firmware,
SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) < 0) {
if (netif_msg_probe(card))
pr_err("Couldn't read in sequencer data file %s.\n",
SPIDER_NET_FIRMWARE_NAME);
- firmware = NULL;
- goto out;
+
+ dn = pci_device_to_OF_node(card->pdev);
+ if (!dn)
+ goto out;
+
+ fw_prop = (u8 *)get_property(dn, "firmware", NULL);
+ if (!fw_prop)
+ goto out;
+
+ memcpy(firmware->data, fw_prop, 6 * SPIDER_NET_FIRMWARE_LEN * sizeof(u32));
+ firmware->size = 6 * SPIDER_NET_FIRMWARE_LEN * sizeof(u32);
}
if (firmware->size != 6 * SPIDER_NET_FIRMWARE_LEN * sizeof(u32)) {
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