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sunxi: Add support for using MII phy-s with the GMAC nic

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Many A20 boards (ie Cubieboard2, A20-OLinuXino_MICRO) use an 100 Mbit MII
phy together with the GMAC nic found in the A20 SoC, add support for this
(this will get used when we add these boards in a later patch).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Chen-Yu Tsai 2014-06-09 11:37:01 +02:00 committed by Ian Campbell
parent c26fb9db0e
commit ef7e723ba1
1 changed files with 11 additions and 0 deletions
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11
board/sunxi/gmac.c
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@ -16,17 +16,28 @@ int sunxi_gmac_initialize(bd_t *bis)
setbits_le32(&ccm->ahb_gate1, 0x1 << AHB_GATE_OFFSET_GMAC);
/* Set MII clock */
#ifdef CONFIG_RGMII
setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII |
CCM_GMAC_CTRL_GPIT_RGMII);
#else
setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_MII |
CCM_GMAC_CTRL_GPIT_MII);
#endif
/* Configure pin mux settings for GMAC */
for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) {
#ifdef CONFIG_RGMII
/* skip unused pins in RGMII mode */
if (pin == SUNXI_GPA(9) || pin == SUNXI_GPA(14))
continue;
#endif
sunxi_gpio_set_cfgpin(pin, SUN7I_GPA0_GMAC);
sunxi_gpio_set_drv(pin, 3);
}
#ifdef CONFIG_RGMII
return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_RGMII);
#else
return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_MII);
#endif
}