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[v1] davinci: EMAC support for Omapl138-Hawkboard

Message ID 1285616467-31955-1-git-send-email-vm.rod25@gmail.com (mailing list archive)
State Changes Requested
Headers show

Commit Message

Victor Rodriguez Sept. 27, 2010, 7:41 p.m. UTC
None
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Patch

diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index c472dd8..fd1f458 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -19,6 +19,55 @@ 
 
 #include <mach/cp_intc.h>
 #include <mach/da8xx.h>
+#include <mach/mux.h>
+
+#define DA850_EVM_PHY_ID		"0:07"
+
+static const short hawk_mii_pins[] = {
+	DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
+	DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
+	DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
+	DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
+	DA850_MDIO_D,
+	-1
+};
+
+static int __init omapl138_hawk_config_emac(void)
+{
+	void __iomem *cfg_chip3_base;
+	int ret;
+	u32 val;
+	struct davinci_soc_info *soc_info = &davinci_soc_info;
+
+	if (!machine_is_omapl138_hawkboard())
+		return 0;
+
+	cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
+
+	val = __raw_readl(cfg_chip3_base);
+
+	val &= ~BIT(8);
+	ret = davinci_cfg_reg_list(hawk_mii_pins);
+	pr_info("EMAC: MII PHY configured, RMII PHY will not be"
+						" functional\n");
+
+	if (ret)
+		pr_warning("hawk_init: cpgmac/rmii mux setup failed: %d\n",
+				ret);
+
+	/* configure the CFGCHIP3 register for MII */
+	__raw_writel(val, cfg_chip3_base);
+
+	/* Enable/Disable MII MDIO clock */
+	soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;
+
+	ret = da8xx_register_emac();
+	if (ret)
+		pr_warning("hawk_init: emac registration failed: %d\n",
+				ret);
+	return 0;
+}
+device_initcall(omapl138_hawk_config_emac);
 
 static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
 	.enabled_uarts = 0x7,