Patchwork [U-Boot,08/31] M28EVK: Enable FEC0 and FEC1

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Submitter Marek Vasut
Date Sept. 8, 2011, 8:42 p.m.
Message ID <1315514579-19215-9-git-send-email-marek.vasut@gmail.com>
Download mbox | patch
Permalink /patch/113959/
State Changes Requested
Headers show

Comments

Marek Vasut - Sept. 8, 2011, 8:42 p.m.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Ben Warren <biggerbadderben@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
---
 board/denx/m28evk/m28evk.c |  109 ++++++++++++++++++++++++++++++++++++++++++++
 include/configs/m28evk.h   |   22 +++++++--
 2 files changed, 127 insertions(+), 4 deletions(-)

Patch

diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c
index d3e6173..fea0227 100644
--- a/board/denx/m28evk/m28evk.c
+++ b/board/denx/m28evk/m28evk.c
@@ -28,10 +28,15 @@ 
 #include <asm/arch/regs-common.h>
 #include <asm/arch/regs-base.h>
 #include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/regs-ocotp.h>
 #include <asm/arch/iomux-mx28.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/mx28.h>
+#include <linux/mii.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -89,3 +94,107 @@  int board_mmc_init(bd_t *bis)
 	return mxsmmc_initialize(bis, 0, m28_mmc_wp);
 }
 #endif
+
+#ifdef	CONFIG_CMD_NET
+
+#define	MII_OPMODE_STRAP_OVERRIDE	0x16
+#define	MII_PHY_CTRL1			0x1e
+#define	MII_PHY_CTRL2			0x1f
+
+int fecmxc_mii_postcall(int phy)
+{
+	miiphy_write("FEC1", phy, MII_BMCR, 0x9000);
+	miiphy_write("FEC1", phy, MII_OPMODE_STRAP_OVERRIDE, 0x0202);
+	if (phy == 3)
+		miiphy_write("FEC1", 3, MII_PHY_CTRL2, 0x8180);
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	struct eth_device *dev;
+	int ret;
+
+	ret = cpu_eth_init(bis);
+
+	clrsetbits_le32(&clkctrl_regs->hw_clkctrl_enet,
+		CLKCTRL_ENET_TIME_SEL_MASK | CLKCTRL_ENET_CLK_OUT_EN,
+		CLKCTRL_ENET_TIME_SEL_RMII_CLK);
+
+	ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE);
+	if (ret) {
+		printf("FEC MXS: Unable to init FEC0\n");
+		return ret;
+	}
+
+	ret = fecmxc_initialize_multi(bis, 1, 3, MXS_ENET1_BASE);
+	if (ret) {
+		printf("FEC MXS: Unable to init FEC1\n");
+		return ret;
+	}
+
+	dev = eth_get_dev_by_name("FEC0");
+	if (!dev) {
+		printf("FEC MXS: Unable to get FEC0 device entry\n");
+		return -EINVAL;
+	}
+
+	ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
+	if (ret) {
+		printf("FEC MXS: Unable to register FEC0 mii postcall\n");
+		return ret;
+	}
+
+	dev = eth_get_dev_by_name("FEC1");
+	if (!dev) {
+		printf("FEC MXS: Unable to get FEC1 device entry\n");
+		return -EINVAL;
+	}
+
+	ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
+	if (ret) {
+		printf("FEC MXS: Unable to register FEC1 mii postcall\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+#ifdef	CONFIG_M28_FEC_MAC_IN_OCOTP
+
+#define	MXS_OCOTP_MAX_TIMEOUT	1000000
+void imx_get_mac_from_fuse(char *mac)
+{
+	struct mx28_ocotp_regs *ocotp_regs =
+		(struct mx28_ocotp_regs *)MXS_OCOTP_BASE;
+	uint32_t data;
+
+	memset(mac, 0, 6);
+
+	writel(OCOTP_CTRL_RD_BANK_OPEN, &ocotp_regs->hw_ocotp_ctrl_set);
+
+	if (mx28_wait_mask_clr(&ocotp_regs->hw_ocotp_ctrl_reg, OCOTP_CTRL_BUSY,
+				MXS_OCOTP_MAX_TIMEOUT)) {
+		printf("MXS FEC: Can't get MAC from OCOTP\n");
+		return;
+	}
+
+	data = readl(&ocotp_regs->hw_ocotp_cust0);
+
+	mac[0] = 0x00;
+	mac[1] = 0x04;
+	mac[2] = (data >> 24) & 0xff;
+	mac[3] = (data >> 16) & 0xff;
+	mac[4] = (data >> 8) & 0xff;
+	mac[5] = data & 0xff;
+}
+#else
+void imx_get_mac_from_fuse(char *mac)
+{
+	memset(mac, 0, 6);
+}
+#endif
+
+#endif
diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
index 1b4db7b..9e0d705 100644
--- a/include/configs/m28evk.h
+++ b/include/configs/m28evk.h
@@ -44,13 +44,14 @@ 
 #define	CONFIG_DOS_PARTITION
 
 #define	CONFIG_CMD_CACHE
+#define	CONFIG_CMD_DHCP
 #define	CONFIG_CMD_EXT2
 #define	CONFIG_CMD_FAT
+#define	CONFIG_CMD_MII
 #define	CONFIG_CMD_MMC
-#undef	CONFIG_CMD_DHCP
-#undef	CONFIG_CMD_NET
-#undef	CONFIG_CMD_NFS
-#undef	CONFIG_CMD_PING
+#define	CONFIG_CMD_NET
+#define	CONFIG_CMD_NFS
+#define	CONFIG_CMD_PING
 #define	CONFIG_CMD_SETEXPR
 
 /*
@@ -106,6 +107,19 @@ 
 #endif
 
 /*
+ * Ethernet on SOC (FEC)
+ */
+#ifdef	CONFIG_CMD_NET
+#define	CONFIG_NET_MULTI
+#define	CONFIG_ETHPRIME			"FEC0"
+#define	CONFIG_FEC_MXC
+#define	CONFIG_FEC_MXC_MULTI
+#define	CONFIG_MII
+#define	CONFIG_DISCOVER_PHY
+#define	CONFIG_FEC_XCV_TYPE		RMII
+#endif
+
+/*
  * Boot Linux
  */
 #define	CONFIG_CMDLINE_TAG