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Subject[PATCH 2/2] ax88796: Add method to take MAC from platform data
Date
Implement a way to provide the MAC address for ax88796 devices from
their platform data. Boards might decide to set the address
programmatically, taken from boot tags or other sources.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: David Miller <davem@davemloft.net>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Matthias Meier <matthias.j.meier@gmx.net>
---
drivers/net/ax88796.c | 17 ++++++++++++-----
include/net/ax88796.h | 13 ++++++++-----
2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ax88796.c b/drivers/net/ax88796.c
index e7c9748..62d9c9c 100644
--- a/drivers/net/ax88796.c
+++ b/drivers/net/ax88796.c
@@ -733,12 +733,19 @@ static int ax_init_dev(struct net_device *dev, int first_init)
/* load the mac-address from the device if this is the
* first time we've initialised */

- if (first_init && ax->plat->flags & AXFLG_MAC_FROMDEV) {
- ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
- ei_local->mem + E8390_CMD); /* 0x61 */
+ if (first_init) {
+ if (ax->plat->flags & AXFLG_MAC_FROMDEV) {
+ ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP,
+ ei_local->mem + E8390_CMD); /* 0x61 */
+ for (i = 0; i < ETHER_ADDR_LEN; i++)
+ dev->dev_addr[i] =
+ ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+ }

- for (i = 0 ; i < ETHER_ADDR_LEN ; i++)
- dev->dev_addr[i] = ei_inb(ioaddr + EN1_PHYS_SHIFT(i));
+ if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) &&
+ ax->plat->mac_addr)
+ memcpy(dev->dev_addr, ax->plat->mac_addr,
+ ETHER_ADDR_LEN);
}

ax_reset_8390(dev);
diff --git a/include/net/ax88796.h b/include/net/ax88796.h
index 51329da..b9a3bec 100644
--- a/include/net/ax88796.h
+++ b/include/net/ax88796.h
@@ -15,14 +15,17 @@
#define AXFLG_HAS_EEPROM (1<<0)
#define AXFLG_MAC_FROMDEV (1<<1) /* device already has MAC */
#define AXFLG_HAS_93CX6 (1<<2) /* use eeprom_93cx6 driver */
+#define AXFLG_MAC_FROMPLATFORM (1<<3) /* MAC given by platform data */

struct ax_plat_data {
unsigned int flags;
- unsigned char wordlength; /* 1 or 2 */
- unsigned char dcr_val; /* default value for DCR */
- unsigned char rcr_val; /* default value for RCR */
- unsigned char gpoc_val; /* default value for GPOC */
- u32 *reg_offsets; /* register offsets */
+ unsigned char wordlength; /* 1 or 2 */
+ unsigned char dcr_val; /* default value for DCR */
+ unsigned char rcr_val; /* default value for RCR */
+ unsigned char gpoc_val; /* default value for GPOC */
+ u32 *reg_offsets; /* register offsets */
+ u8 *mac_addr; /* MAC addr (only used when
+ AXFLG_MAC_FROMPLATFORM is used */
};

#endif /* __NET_AX88796_PLAT_H */
--
1.6.2


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