myri_sbus: use request_firmware
Firmware blob looks like this...
__be16 lanai4_data_size
unsigned char lanai4_code[]
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c
index 08534c0..9a802ad 100644
--- a/drivers/net/myri_sbus.c
+++ b/drivers/net/myri_sbus.c
@@ -25,6 +25,7 @@
#include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/firmware.h>
#include <net/dst.h>
#include <net/arp.h>
@@ -43,7 +44,6 @@
#include <asm/irq.h>
#include "myri_sbus.h"
-#include "myri_code.h"
/* #define DEBUG_DETECT */
/* #define DEBUG_IRQ */
@@ -81,6 +81,9 @@
#define DHDR(x)
#endif
+/* Firmware name */
+#define FWNAME "myricom/lanai.bin"
+
static void myri_reset_off(void __iomem *lp, void __iomem *cregs)
{
/* Clear IRQ mask. */
@@ -171,10 +174,11 @@
static int __devinit myri_load_lanai(struct myri_eth *mp)
{
+ const struct firmware *fw;
struct net_device *dev = mp->dev;
struct myri_shmem __iomem *shmem = mp->shmem;
void __iomem *rptr;
- int i;
+ int i, lanai4_data_size;
myri_disable_irq(mp->lregs, mp->cregs);
myri_reset_on(mp->cregs);
@@ -186,13 +190,27 @@
if (mp->eeprom.cpuvers >= CPUVERS_3_0)
sbus_writel(mp->eeprom.cval, mp->lregs + LANAI_CVAL);
+ i = request_firmware(&fw, FWNAME, &mp->myri_op->dev);
+ if (i) {
+ printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
+ FWNAME, i);
+ return i;
+ }
+ if (fw->size < 2) {
+ printk(KERN_ERR "Bogus length %zu in image \"%s\"\n",
+ fw->size, FWNAME);
+ release_firmware(fw);
+ return -EINVAL;
+ }
+ lanai4_data_size = fw->data[0] << 8 | fw->data[1];
+
/* Load executable code. */
- for (i = 0; i < sizeof(lanai4_code); i++)
- sbus_writeb(lanai4_code[i], rptr + (lanai4_code_off * 2) + i);
+ for (i = 2; i < fw->size; i++)
+ sbus_writeb(fw->data[i], rptr++);
/* Load data segment. */
- for (i = 0; i < sizeof(lanai4_data); i++)
- sbus_writeb(lanai4_data[i], rptr + (lanai4_data_off * 2) + i);
+ for (i = 0; i < lanai4_data_size; i++)
+ sbus_writeb(0, rptr++);
/* Set device address. */
sbus_writeb(0, &shmem->addr[0]);
@@ -228,6 +246,7 @@
if (mp->eeprom.cpuvers == CPUVERS_4_0)
sbus_writel(0, mp->lregs + LANAI_VERS);
+ release_firmware(fw);
return i;
}
@@ -1078,7 +1097,10 @@
/* Load code onto the LANai. */
DET(("Loading LANAI firmware\n"));
- myri_load_lanai(mp);
+ if (myri_load_lanai(mp)) {
+ printk(KERN_ERR "MyriCOM: Cannot Load LANAI firmware.\n");
+ goto err_free_irq;
+ }
if (register_netdev(dev)) {
printk("MyriCOM: Cannot register device.\n");
@@ -1159,3 +1181,4 @@
module_exit(myri_sbus_exit);
MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FWNAME);