/*
* Driver for the built-in ethernet switch of the Atheros AR7240 SoC
* Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (c) 2010 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (c) 2010 Felix Fietkau <nbd@nbd.name>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
#define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26)
#define AR7240_REG_GLOBAL_CTRL 0x30
-#define AR7240_GLOBAL_CTRL_MTU_M BITM(12)
+#define AR7240_GLOBAL_CTRL_MTU_M BITM(11)
+#define AR9340_GLOBAL_CTRL_MTU_M BITM(14)
#define AR7240_REG_VTU 0x0040
#define AR7240_VTU_OP BITM(3)
if ((t & mask) == val)
return 0;
- msleep(1);
+ usleep_range(1000, 2000);
}
return -ETIMEDOUT;
AR934X_FLOOD_MASK_BC_DP(0) |
AR934X_FLOOD_MASK_MC_DP(0));
+ /* setup MTU */
+ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+ AR9340_GLOBAL_CTRL_MTU_M,
+ AR9340_GLOBAL_CTRL_MTU_M);
+
/* Enable MIB counters */
ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0,
AR934X_MIB_ENABLE);
/* Enable Broadcast frames transmitted to the CPU */
ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
AR7240_FLOOD_MASK_BROAD_TO_CPU);
- }
- /* setup MTU */
- ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
- 1536);
+ /* setup MTU */
+ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+ AR7240_GLOBAL_CTRL_MTU_M,
+ AR7240_GLOBAL_CTRL_MTU_M);
+ }
/* setup Service TAG */
ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
}
+/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
+static int
+ar7240sw_phy_poll_reset(struct mii_bus *bus)
+{
+ const unsigned int sleep_msecs = 20;
+ int ret, elapsed, i;
+
+ for (elapsed = sleep_msecs; elapsed <= 600;
+ elapsed += sleep_msecs) {
+ msleep(sleep_msecs);
+ for (i = 0; i < AR7240_NUM_PHYS; i++) {
+ ret = ar7240sw_phy_read(bus, i, MII_BMCR);
+ if (ret < 0)
+ return ret;
+ if (ret & BMCR_RESET)
+ break;
+ if (i == AR7240_NUM_PHYS - 1) {
+ usleep_range(1000, 2000);
+ return 0;
+ }
+ }
+ }
+ return -ETIMEDOUT;
+}
+
static int ar7240sw_reset(struct ar7240sw *as)
{
struct mii_bus *mii = as->mii_bus;
ar7240sw_disable_port(as, i);
/* Wait for transmit queues to drain. */
- msleep(2);
+ usleep_range(2000, 3000);
/* Reset the switch. */
ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
ar7240sw_phy_write(mii, i, MII_BMCR,
BMCR_RESET | BMCR_ANENABLE);
}
- msleep(1000);
+ ret = ar7240sw_phy_poll_reset(mii);
+ if (ret)
+ return ret;
ar7240sw_setup(as);
return ret;