[U-Boot] [PATCH] drivers/net/mvgbe.c: Fix GCC 4.6 warnings

[Anatolij Gustschin]

Fix:
mvgbe.c: In function 'mvgbe_send':
mvgbe.c:555:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]
mvgbe.c: In function 'mvgbe_recv':
mvgbe.c:640:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Anatolij Gustschin <ag...@denx.de>
Cc: Prafulla Wadaskar <prafu...@marvell.com>
---
 drivers/net/mvgbe.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c
index fd13428..de7cdd7 100644
--- a/drivers/net/mvgbe.c
+++ b/drivers/net/mvgbe.c
@@ -531,6 +531,7 @@ static int mvgbe_send(struct eth_device *dev, void *dataptr,
        struct mvgbe_txdesc *p_txdesc = dmvgbe->p_txdesc;
        void *p = (void *)dataptr;
        u32 cmd_sts;
+       u32 txuq0_reg_addr;
 
        /* Copy buffer if it's misaligned */
        if ((u32) dataptr & 0x07) {
@@ -552,7 +553,8 @@ static int mvgbe_send(struct eth_device *dev, void *dataptr,
        p_txdesc->byte_cnt = datasize;
 
        /* Set this tc desc as zeroth TXUQ */
-       MVGBE_REG_WR(regs->tcqdp[TXUQ], (u32) p_txdesc);
+       txuq0_reg_addr = (u32)&regs->tcqdp[TXUQ];
+       writel((u32) p_txdesc, txuq0_reg_addr);
 
        /* ensure tx desc writes above are performed before we start Tx DMA */
        isb();
@@ -583,6 +585,7 @@ static int mvgbe_recv(struct eth_device *dev)
        struct mvgbe_rxdesc *p_rxdesc_curr = dmvgbe->p_rxdesc_curr;
        u32 cmd_sts;
        u32 timeout = 0;
+       u32 rxdesc_curr_addr;
 
        /* wait untill rx packet available or timeout */
        do {
@@ -637,8 +640,8 @@ static int mvgbe_recv(struct eth_device *dev)
        p_rxdesc_curr->buf_size = PKTSIZE_ALIGN;
        p_rxdesc_curr->byte_cnt = 0;
 
-       writel((unsigned)p_rxdesc_curr->nxtdesc_p,
-               (u32) &dmvgbe->p_rxdesc_curr);
+       rxdesc_curr_addr = (u32)&dmvgbe->p_rxdesc_curr;
+       writel((unsigned)p_rxdesc_curr->nxtdesc_p, rxdesc_curr_addr);
 
        return 0;
 }
-- 
1.7.5.4

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