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Diffstat (limited to 'drivers/at91rm9200_ether.c')
-rw-r--r--drivers/at91rm9200_ether.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/drivers/at91rm9200_ether.c b/drivers/at91rm9200_ether.c
deleted file mode 100644
index f92008e..0000000
--- a/drivers/at91rm9200_ether.c
+++ /dev/null
@@ -1,251 +0,0 @@
-
-#include <common.h>
-#include <command.h>
-#include <asm/io.h>
-#include <net.h>
-
-/* ----- Ethernet Buffer definitions ----- */
-
-typedef struct {
- unsigned long addr,size;
-} rbf_t;
-
-#define RBF_ADDR 0xfffffffc
-#define RBF_OWNER (1<<0)
-#define RBF_WRAP (1<<1)
-#define RBF_BROADCAST (1<<31)
-#define RBF_MULTICAST (1<<30)
-#define RBF_UNICAST (1<<29)
-#define RBF_EXTERNAL (1<<28)
-#define RBF_UNKOWN (1<<27)
-#define RBF_SIZE 0x07ff
-#define RBF_LOCAL4 (1<<26)
-#define RBF_LOCAL3 (1<<25)
-#define RBF_LOCAL2 (1<<24)
-#define RBF_LOCAL1 (1<<23)
-
-#define RBF_FRAMEMAX 10
-#define RBF_FRAMEMEM 0x200000
-#define RBF_FRAMELEN 0x600
-
-#define RBF_FRAMEBTD RBF_FRAMEMEM
-#define RBF_FRAMEBUF (RBF_FRAMEMEM + RBF_FRAMEMAX*sizeof(rbf_t))
-
-/* stolen from mii.h */
-/* Generic MII registers. */
-
-#define MII_BMCR 0x00 /* Basic mode control register */
-#define MII_BMSR 0x01 /* Basic mode status register */
-#define BMSR_JCD 0x0002 /* Jabber detected */
-#define BMSR_LSTATUS 0x0004 /* Link status */
-#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
-#define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */
-#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
-#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
-
-#define MII_STS2_REG 17 /* Davicom specific */
-#define MII_MDINTR_REG 21 /* Davicom specific */
-
-#ifdef CONFIG_DRIVER_ETHER
-
-#if (CONFIG_COMMANDS & CFG_CMD_NET)
-
-AT91PS_EMAC p_mac;
-
-int MII_ReadPhy(unsigned char addr, unsigned short *ret)
- {
-
- p_mac->EMAC_MAN = 0x60020000 | (addr << 18);
- udelay(10000);
- *ret = (unsigned short)p_mac->EMAC_MAN;
- return 1;
- }
-
-
-int MII_GetLinkSpeed(void)
- {
- unsigned short stat1, stat2;
- int ret;
-
- if (!(ret = MII_ReadPhy(MII_BMSR, &stat1)))
- return 0;
-
- if (stat1 & BMSR_JCD)
- {
-#ifdef DEBUG
- printf("MII: jabber condition detected\n");
-#endif /*jabber detected re-read the register*/
- }
- if (!(ret = MII_ReadPhy(MII_BMSR, &stat1)))
- return 0;
- if (!(stat1 & BMSR_LSTATUS)) /* link status up? */
- {
- printf("MII: no Link\n");
- return 0;
- }
-
- if (!(ret = MII_ReadPhy(MII_STS2_REG, &stat2)))
- return 0;
-
- if ((stat1 & BMSR_100FULL) && (stat2 & 0x8000) )
- {
- /* set MII for 100BaseTX and Full Duplex */
- p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
-#ifdef DEBUG
- printf("MII: 100BaseTX and Full Duplex detected\n");
-#endif
- return 1;
- }
-
- else
- if ((stat1 & BMSR_10FULL) && (stat2 & 0x2000))
- {
- /* set MII for 10BaseT and Full Duplex */
- p_mac->EMAC_CFG = (p_mac->EMAC_CFG & ~(AT91C_EMAC_SPD | AT91C_EMAC_FD));
-#ifdef DEBUG
- printf("MII: 10BaseT and Full Duplex detected\n");
-#endif
- return 1;
- }
- else
- if ((stat1 & BMSR_100HALF) && (stat2 & 0x4000))
- {
- /* set MII for 100BaseTX and Half Duplex */
- p_mac->EMAC_CFG = (p_mac->EMAC_CFG & ~(AT91C_EMAC_SPD | AT91C_EMAC_FD));
-#ifdef DEBUG
- printf("MII: 100BaseTX and Hall Duplex detected\n");
-#endif
- return 1;
- }
- else
- if ((stat1 & BMSR_10HALF) && (stat2 & 0x1000))
- {
- /*set MII for 10BaseT and Half Duplex */
- p_mac->EMAC_CFG &= ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
-#ifdef DEBUG
- printf("MII: 10BaseT and Hall Duplex detected\n");
-#endif
- return 1;
- }
-
- return 0;
- }
-
-
-int MDIO_StartupPhy(void)
- {
- int ret;
-
- if(p_mac->EMAC_SR & AT91C_EMAC_LINK)
- {
- printf("MDIO_StartupPhy: no link\n");
- return 0;
- };
-
- p_mac->EMAC_CTL |= AT91C_EMAC_MPE;
-
- ret = MII_GetLinkSpeed();
- if (ret == 0)
- {
- printf("MDIO_StartupPhy: MII_GetLinkSpeed failed\n");
- ret = 0;
- }
- else
- {
- ret = 1;
- }
-
- p_mac->EMAC_CTL &= ~AT91C_EMAC_MPE;
- return ret;
-
- }
-
-
-rbf_t* rbfdt;
-rbf_t* rbfp;
-
-int eth_init( bd_t *bd )
- {
- int ret;
- int i;
- p_mac = AT91C_BASE_EMAC;
-
- *AT91C_PIOA_PDR = AT91C_PA16_EMDIO |
- AT91C_PA15_EMDC | AT91C_PA14_ERXER | AT91C_PA13_ERX1 | AT91C_PA12_ERX0 |
- AT91C_PA11_ECRS_ECRSDV | AT91C_PA10_ETX1 | AT91C_PA9_ETX0 | AT91C_PA8_ETXEN |
- AT91C_PA7_ETXCK_EREFCK; /* PIO Disable Register */
-
- *AT91C_PIOB_PDR = AT91C_PB25_EF100 |
- AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV | AT91C_PB16_ERX3 |
- AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3 | AT91C_PB12_ETX2;
-
- *AT91C_PIOB_BSR = AT91C_PB25_EF100 |
- AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV | AT91C_PB16_ERX3 |
- AT91C_PB15_ERX2 | AT91C_PB14_ETXER | AT91C_PB13_ETX3 | AT91C_PB12_ETX2; /* Select B Register */
- *AT91C_PMC_PCER = 1 << AT91C_ID_EMAC; /* Peripheral Clock Enable Register */
- p_mac->EMAC_CFG |= AT91C_EMAC_CSR; /* Clear statistics */
-
- rbfdt=(rbf_t *)RBF_FRAMEBTD;
- for(i = 0; i < RBF_FRAMEMAX; i++)
- {
- rbfdt[i].addr=RBF_FRAMEBUF+RBF_FRAMELEN*i;
- rbfdt[i].size=0;
- }
- rbfdt[RBF_FRAMEMAX-1].addr|=RBF_WRAP;
- rbfp=&rbfdt[0];
-
- if (!(ret = MDIO_StartupPhy()))
- {
- printf("MAC: error during MII initialization\n");
- return 0;
- }
-
- p_mac->EMAC_SA2L = (bd->bi_enetaddr[3] << 24) | (bd->bi_enetaddr[2] << 16)
- | (bd->bi_enetaddr[1] << 8) | (bd->bi_enetaddr[0]);
- p_mac->EMAC_SA2H = (bd->bi_enetaddr[5] << 8) | (bd->bi_enetaddr[4]);
-
- p_mac->EMAC_RBQP = (long)(&rbfdt[0]);
- p_mac->EMAC_RSR &= ~(AT91C_EMAC_RSR_OVR | AT91C_EMAC_REC | AT91C_EMAC_BNA);
- p_mac->EMAC_CFG = (p_mac->EMAC_CFG | AT91C_EMAC_CAF | AT91C_EMAC_NBC | AT91C_EMAC_RMII) & ~AT91C_EMAC_CLK;
- p_mac->EMAC_CTL |= AT91C_EMAC_TE | AT91C_EMAC_RE ;
-
- return 0;
- }
-
-int eth_send(volatile void *packet, int length)
- {
- while(!(p_mac->EMAC_TSR & AT91C_EMAC_BNQ))
- ;
- p_mac->EMAC_TAR = (long)packet;
- p_mac->EMAC_TCR = length;
- while(p_mac->EMAC_TCR & 0x7ff)
- ;
- p_mac->EMAC_TSR |= AT91C_EMAC_COMP;
- return 0;
- }
-
-int eth_rx(void)
- {
- int size;
-
- if(!(rbfp->addr & RBF_OWNER))
- return 0;
-
- size=rbfp->size & RBF_SIZE;
- NetReceive((volatile uchar *) (rbfp->addr & RBF_ADDR), size);
-
- rbfp->addr &= ~RBF_OWNER;
- if(rbfp->addr & RBF_WRAP)
- rbfp = &rbfdt[0];
- else
- rbfp++;
-
- p_mac->EMAC_RSR |= AT91C_EMAC_REC;
-
- return size;
- }
-
-void eth_halt( void )
- {};
-#endif
-#endif
generated by cgit v1.1 at 2024-11-24 17:01:40 +0000