diff options
Diffstat (limited to 'board/rpxsuper/mii_phy.c')
-rw-r--r-- | board/rpxsuper/mii_phy.c | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/board/rpxsuper/mii_phy.c b/board/rpxsuper/mii_phy.c deleted file mode 100644 index 12e23f4..0000000 --- a/board/rpxsuper/mii_phy.c +++ /dev/null @@ -1,107 +0,0 @@ -#include <common.h> -#include <mii_phy.h> -#include "rpxsuper.h" - -#define MII_MDIO 0x01 -#define MII_MDCK 0x02 -#define MII_MDIR 0x04 - -void -mii_discover_phy(void) -{ - int known; - unsigned short phy_reg; - unsigned long phy_id; - - known = 0; - printf("Discovering phy @ 0: "); - phy_id = mii_phy_read(2) << 16; - phy_id |= mii_phy_read(3); - if ((phy_id & 0xFFFFFC00) == 0x00137800) { - printf("Level One "); - if ((phy_id & 0x000003F0) == 0xE0) { - printf("LXT971A Revision %d\n", (int)(phy_id & 0xF)); - known = 1; - } - else printf("unknown type\n"); - } - else printf("unknown OUI = 0x%08lX\n", phy_id); - - phy_reg = mii_phy_read(1); - if (!(phy_reg & 0x0004)) printf("Link is down\n"); - if (!(phy_reg & 0x0020)) printf("Auto-negotiation not complete\n"); - if (phy_reg & 0x0002) printf("Jabber condition detected\n"); - if (phy_reg & 0x0010) printf("Remote fault condition detected \n"); - - if (known) { - phy_reg = mii_phy_read(17); - if (phy_reg & 0x0400) - printf("Phy operating at %d MBit/s in %s-duplex mode\n", - phy_reg & 0x4000 ? 100 : 10, - phy_reg & 0x0200 ? "full" : "half"); - else - printf("bad link!!\n"); -/* -left off: no link, green 100MBit, yellow 10MBit -right off: no activity, green full-duplex, yellow half-duplex -*/ - mii_phy_write(20, 0x0452); - } -} - -unsigned short -mii_phy_read(unsigned short reg) -{ - int i; - unsigned short tmp, val = 0, adr = 0; - t_rpx_regs *regs = (t_rpx_regs*)CONFIG_SYS_REGS_BASE; - - tmp = 0x6002 | (adr << 7) | (reg << 2); - regs->bcsr4 = 0xC3; - for (i = 0; i < 64; i++) { - regs->bcsr4 ^= MII_MDCK; - } - for (i = 0; i < 16; i++) { - regs->bcsr4 &= ~MII_MDCK; - if (tmp & 0x8000) regs->bcsr4 |= MII_MDIO; - else regs->bcsr4 &= ~MII_MDIO; - regs->bcsr4 |= MII_MDCK; - tmp <<= 1; - } - regs->bcsr4 |= MII_MDIR; - for (i = 0; i < 16; i++) { - val <<= 1; - regs->bcsr4 = MII_MDIO | (regs->bcsr4 | MII_MDCK); - if (regs->bcsr4 & MII_MDIO) val |= 1; - regs->bcsr4 = MII_MDIO | (regs->bcsr4 &= ~MII_MDCK); - } - return val; -} - -void -mii_phy_write(unsigned short reg, unsigned short val) -{ - int i; - unsigned short tmp, adr = 0; - t_rpx_regs *regs = (t_rpx_regs*)CONFIG_SYS_REGS_BASE; - - tmp = 0x5002 | (adr << 7) | (reg << 2); - regs->bcsr4 = 0xC3; - for (i = 0; i < 64; i++) { - regs->bcsr4 ^= MII_MDCK; - } - for (i = 0; i < 16; i++) { - regs->bcsr4 &= ~MII_MDCK; - if (tmp & 0x8000) regs->bcsr4 |= MII_MDIO; - else regs->bcsr4 &= ~MII_MDIO; - regs->bcsr4 |= MII_MDCK; - tmp <<= 1; - } - for (i = 0; i < 16; i++) { - regs->bcsr4 &= ~MII_MDCK; - if (val & 0x8000) regs->bcsr4 |= MII_MDIO; - else regs->bcsr4 &= ~MII_MDIO; - regs->bcsr4 |= MII_MDCK; - val <<= 1; - } -} |