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yaml
---
r: 300510
b: refs/heads/master
c: 18f05d6
h: refs/heads/master
v: v3
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Giuseppe CAVALLARO authored and David S. Miller committed Apr 4, 2012
1 parent b75dfaa commit e1b68bf
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Showing 3 changed files with 20 additions and 19 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ba1377ffe90a04d9a1d526067909d24e3cf7a3f7
refs/heads/master: 18f05d64ec36e27892cc0f55be707762aae053a1
4 changes: 2 additions & 2 deletions trunk/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,7 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
int data;
u16 regValue = (((phyaddr << 11) & (0x0000F800)) |
((phyreg << 6) & (0x000007C0)));
regValue |= MII_BUSY | ((priv->plat->clk_csr & 7) << 2);
regValue |= MII_BUSY | ((priv->plat->clk_csr & 0xF) << 2);

if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
return -EBUSY;
Expand Down Expand Up @@ -106,7 +106,7 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
(((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0)))
| MII_WRITE;

value |= MII_BUSY | ((priv->plat->clk_csr & 7) << 2);
value |= MII_BUSY | ((priv->plat->clk_csr & 0xF) << 2);

/* Wait until any existing MII operation is complete */
if (stmmac_mdio_busy_wait(priv->ioaddr, mii_address))
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33 changes: 17 additions & 16 deletions trunk/include/linux/stmmac.h
Original file line number Diff line number Diff line change
Expand Up @@ -37,28 +37,29 @@
* This could also be configured at run time using CPU freq framework. */

/* MDC Clock Selection define*/
#define STMMAC_CSR_60_100M 0 /* MDC = clk_scr_i/42 */
#define STMMAC_CSR_100_150M 1 /* MDC = clk_scr_i/62 */
#define STMMAC_CSR_20_35M 2 /* MDC = clk_scr_i/16 */
#define STMMAC_CSR_35_60M 3 /* MDC = clk_scr_i/26 */
#define STMMAC_CSR_150_250M 4 /* MDC = clk_scr_i/102 */
#define STMMAC_CSR_250_300M 5 /* MDC = clk_scr_i/122 */

/* FIXME: The MDC clock could be set higher than the IEEE 802.3
#define STMMAC_CSR_60_100M 0x0 /* MDC = clk_scr_i/42 */
#define STMMAC_CSR_100_150M 0x1 /* MDC = clk_scr_i/62 */
#define STMMAC_CSR_20_35M 0x2 /* MDC = clk_scr_i/16 */
#define STMMAC_CSR_35_60M 0x3 /* MDC = clk_scr_i/26 */
#define STMMAC_CSR_150_250M 0x4 /* MDC = clk_scr_i/102 */
#define STMMAC_CSR_250_300M 0x5 /* MDC = clk_scr_i/122 */

/* The MDC clock could be set higher than the IEEE 802.3
* specified frequency limit 0f 2.5 MHz, by programming a clock divider
* of value different than the above defined values. The resultant MDIO
* clock frequency of 12.5 MHz is applicable for the interfacing chips
* supporting higher MDC clocks.
* The MDC clock selection macros need to be defined for MDC clock rate
* of 12.5 MHz, corresponding to the following selection.
* 1000 clk_csr_i/4
* 1001 clk_csr_i/6
* 1010 clk_csr_i/8
* 1011 clk_csr_i/10
* 1100 clk_csr_i/12
* 1101 clk_csr_i/14
* 1110 clk_csr_i/16
* 1111 clk_csr_i/18 */
*/
#define STMMAC_CSR_I_4 0x8 /* clk_csr_i/4 */
#define STMMAC_CSR_I_6 0x9 /* clk_csr_i/6 */
#define STMMAC_CSR_I_8 0xA /* clk_csr_i/8 */
#define STMMAC_CSR_I_10 0xB /* clk_csr_i/10 */
#define STMMAC_CSR_I_12 0xC /* clk_csr_i/12 */
#define STMMAC_CSR_I_14 0xD /* clk_csr_i/14 */
#define STMMAC_CSR_I_16 0xE /* clk_csr_i/16 */
#define STMMAC_CSR_I_18 0xF /* clk_csr_i/18 */

/* AXI DMA Burst length suported */
#define DMA_AXI_BLEN_4 (1 << 1)
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