Add Auto-MDIX support for INCA-IP

diff --git a/CHANGELOG b/CHANGELOG
index ad36ab5..4c285c3 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,8 @@
 Changes for U-Boot 1.0.2:
 ======================================================================
 
+* Add Auto-MDIX support for INCA-IP
+
 * Some code cleanup
 
 * Patch by Josef Baumgartner, 10 Feb 2004:

diff --git a/board/incaip/memsetup.S b/board/incaip/memsetup.S
index 10c4e84..3f883c1 100644 (file)
--- a/board/incaip/memsetup.S
+++ b/board/incaip/memsetup.S
@@ -185,8 +185,10 @@ sdram_init:
 
        li      t1, MC_MODUL_BASE
 
+#if 0
        /* Disable memory controller before changing any of its registers */
        sw      zero, MC_CTRLENA(t1)
+#endif
 
        li      t2, 100000000
        beq     a0, t2, 1f

diff --git a/drivers/inca-ip_sw.c b/drivers/inca-ip_sw.c
index f5009d4..42edca8 100644 (file)
--- a/drivers/inca-ip_sw.c
+++ b/drivers/inca-ip_sw.c
@@ -67,6 +67,16 @@
 #define INCA_DMA_RX_SOP 0x40000000
 #define INCA_DMA_RX_EOP 0x20000000
 
+/************************ Auto MDIX settings ************************/
+#define INCA_IP_AUTO_MDIX_LAN_PORTS_DIR      INCA_IP_Ports_P1_DIR
+#define INCA_IP_AUTO_MDIX_LAN_PORTS_ALTSEL   INCA_IP_Ports_P1_ALTSEL  
+#define INCA_IP_AUTO_MDIX_LAN_PORTS_OUT      INCA_IP_Ports_P1_OUT
+#define INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX  16
+
+#define WAIT_SIGNAL_RETRIES                  100
+#define WAIT_LINK_RETRIES                    100
+#define LINK_RETRY_DELAY                     300  /* ms */
+/********************************************************************/
 
 typedef struct
 {
@@ -143,6 +153,7 @@ static int inca_switch_recv(struct eth_device *dev);
 static void inca_switch_halt(struct eth_device *dev);
 static void inca_init_switch_chip(void);
 static void inca_dma_init(void);
+static int inca_amdix(void);
 
 
 int inca_switch_initialize(bd_t * bis)
@@ -162,6 +173,8 @@ int inca_switch_initialize(bd_t * bis)
        inca_dma_init();
 
        inca_init_switch_chip();
+       
+       inca_amdix();
 
        sprintf(dev->name, "INCA-IP Switch");
        dev->init = inca_switch_init;
@@ -610,4 +623,88 @@ static void inca_dma_init(void)
        DMA_WRITE_REG(INCA_IP_DMA_DMA_RXISR, 0xFFFFFFFF);
 }
 
+static int inca_amdix(void)
+{
+       u32 regValue = 0;
+       int mdi_flag;
+       int retries;
+
+       /* Setup GPIO pins.
+        */
+       *INCA_IP_AUTO_MDIX_LAN_PORTS_DIR    |= (1 << INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX);
+       *INCA_IP_AUTO_MDIX_LAN_PORTS_ALTSEL |= (1 << INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX);
+
+       /* Wait for signal.
+        */
+       retries = WAIT_SIGNAL_RETRIES;
+       while (--retries)
+       {
+               SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC,
+                               (0x1 << 31) |   /* RA           */
+                               (0x0 << 30) |   /* Read         */
+                               (0x6 << 21) |   /* LAN          */
+                               (17  << 16));   /* PHY_MCSR     */
+               do
+               {
+                       SW_READ_REG(INCA_IP_Switch_MDIO_ACC, regValue);
+               }
+               while (regValue & (1 << 31));
+
+               if (regValue & (1 << 1))
+               {
+                       /* Signal detected */
+                       break;
+               }
+       }
+
+       if (!retries)
+               return -1;
+
+       /* Set MDI mode.
+        */
+       *INCA_IP_AUTO_MDIX_LAN_PORTS_OUT &= ~(1 << INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX);
+       mdi_flag = 1;
+
+       /* Wait for link.
+        */
+       retries = WAIT_LINK_RETRIES;
+       while (--retries)
+       {
+               udelay(LINK_RETRY_DELAY * 1000);
+               SW_WRITE_REG(INCA_IP_Switch_MDIO_ACC,
+                               (0x1 << 31) |   /* RA           */
+                               (0x0 << 30) |   /* Read         */
+                               (0x6 << 21) |   /* LAN          */
+                               (1   << 16));   /* PHY_BSR      */
+               do
+               {
+                       SW_READ_REG(INCA_IP_Switch_MDIO_ACC, regValue);
+               }
+               while (regValue & (1 << 31));
+
+               if (regValue & (1 << 2))
+               {
+                       /* Link is up */
+                       break;
+               }
+               else if (mdi_flag)
+               {
+                       /* Set MDIX mode */
+                       *INCA_IP_AUTO_MDIX_LAN_PORTS_OUT |= (1 << INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX);
+                       mdi_flag = 0;
+               }
+               else
+               {
+                       /* Set MDI mode */
+                       *INCA_IP_AUTO_MDIX_LAN_PORTS_OUT &= ~(1 << INCA_IP_AUTO_MDIX_LAN_GPIO_PIN_RXTX);
+                       mdi_flag = 1;
+               }
+       }
+
+       if (!retries)
+               return -1;
+
+       return 0;
+}
+
 #endif

diff --git a/post/ether.c b/post/ether.c
index b041a43..47aa352 100644 (file)
--- a/post/ether.c
+++ b/post/ether.c
@@ -358,10 +358,10 @@ CPM_CR_CH_SCC4 };
         */
 
        immr->im_cpm.cp_scc[scc_index].scc_gsmrl = (SCC_GSMRL_TCI |
-                                                                                               SCC_GSMRL_TPL_48 |
-                                                                                               SCC_GSMRL_TPP_10 |
-                                                                                               SCC_GSMRL_DIAG_LOOP |
-                                                                                               SCC_GSMRL_MODE_ENET);
+                                                   SCC_GSMRL_TPL_48 |
+                                                   SCC_GSMRL_TPP_10 |
+                                                   SCC_GSMRL_DIAG_LOOP |
+                                                   SCC_GSMRL_MODE_ENET);
 
        /*
         * Initialize the DSR -- see section 13.14.4 (pg. 513) v0.4