git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-25 00:52:45 -04:00
Code Issues Packages Projects Releases Wiki Activity

stmmac: share reset function between dwmac100 and dwmac1000

Browse Source 
This patch is to share the same reset procedure between dwmac100 and
dwmac1000 chips.
This will also help on enhancing the driver and support new chips.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Giuseppe Cavallaro
2016-02-29 14:27:27 +01:00
committed by David S. Miller
parent fcb3f55f66
commit 495db27302
8 changed files with 46 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
View File

@@ -26,6 +26,27 @@
#define GMAC_HI_REG_AE 0x80000000
int dwmac_dma_reset(void __iomem *ioaddr)
{
u32 value = readl(ioaddr + DMA_BUS_MODE);
int limit;
/* DMA SW reset */
value |= DMA_BUS_MODE_SFT_RESET;
writel(value, ioaddr + DMA_BUS_MODE);
limit = 10;
while (limit--) {
if (!(readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET))
break;
mdelay(10);
}
if (limit < 0)
return -EBUSY;
return 0;
}
/* CSR1 enables the transmit DMA to check for new descriptor */
void dwmac_enable_dma_transmission(void __iomem *ioaddr)
{