omap3: cm-t3517: add Ethernet support
Add both EMAC and SMC911x support.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/board/compulab/cm_t3517/cm_t3517.c b/board/compulab/cm_t3517/cm_t3517.c
index 6abecc2..cac1ad9 100644
--- a/board/compulab/cm_t3517/cm_t3517.c
+++ b/board/compulab/cm_t3517/cm_t3517.c
@@ -8,6 +8,8 @@
#include <common.h>
#include <status_led.h>
+#include <net.h>
+#include <netdev.h>
#include <usb.h>
#include <mmc.h>
#include <linux/compiler.h>
@@ -23,6 +25,7 @@
#include <asm/ehci-omap.h>
#include "../common/common.h"
+#include "../common/eeprom.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -113,6 +116,92 @@
}
#endif
+#ifdef CONFIG_DRIVER_TI_EMAC
+#define CONTROL_EFUSE_EMAC_LSB 0x48002380
+#define CONTROL_EFUSE_EMAC_MSB 0x48002384
+
+static int am3517_get_efuse_enetaddr(u8 *enetaddr)
+{
+ u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
+ u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
+
+ enetaddr[0] = (u8)((msb >> 16) & 0xff);
+ enetaddr[1] = (u8)((msb >> 8) & 0xff);
+ enetaddr[2] = (u8)(msb & 0xff);
+ enetaddr[3] = (u8)((lsb >> 16) & 0xff);
+ enetaddr[4] = (u8)((lsb >> 8) & 0xff);
+ enetaddr[5] = (u8)(lsb & 0xff);
+
+ return is_valid_ether_addr(enetaddr);
+}
+
+static inline int cm_t3517_init_emac(bd_t *bis)
+{
+ int ret = cpu_eth_init(bis);
+
+ if (ret > 0)
+ return ret;
+
+ printf("Failed initializing EMAC! ");
+ return 0;
+}
+#else /* !CONFIG_DRIVER_TI_EMAC */
+static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
+static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
+/*
+ * Routine: handle_mac_address
+ * Description: prepare MAC address for on-board Ethernet.
+ */
+static int cm_t3517_handle_mac_address(void)
+{
+ unsigned char enetaddr[6];
+ int ret;
+
+ ret = eth_getenv_enetaddr("ethaddr", enetaddr);
+ if (ret)
+ return 0;
+
+ ret = cl_eeprom_read_mac_addr(enetaddr);
+ if (ret) {
+ ret = am3517_get_efuse_enetaddr(enetaddr);
+ if (ret)
+ return ret;
+ }
+
+ if (!is_valid_ether_addr(enetaddr))
+ return -1;
+
+ return eth_setenv_enetaddr("ethaddr", enetaddr);
+}
+
+#define SB_T35_ETH_RST_GPIO 164
+
+/*
+ * Routine: board_eth_init
+ * Description: initialize module and base-board Ethernet chips
+ */
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0, rc1 = 0;
+
+ rc1 = cm_t3517_handle_mac_address();
+ if (rc1)
+ printf("No MAC address found! ");
+
+ rc1 = cm_t3517_init_emac(bis);
+ if (rc1 > 0)
+ rc++;
+
+ rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
+ NULL, SB_T35_ETH_RST_GPIO);
+ if (rc1 > 0)
+ rc++;
+
+ return rc;
+}
+
#ifdef CONFIG_USB_EHCI_OMAP
static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,