imx: refactor imx_get_mac_from_fuse

Move imx_get_mac_from_fuse to a new mac.c for i.MX6/7.
Since fuse regs structure are different for i.MX6/7, use mac
address offset in code and define a new local struture
imx_mac_fuse.

Also sort the config order.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>

arch/arm/mach-imx/Makefile

@@ -25,12 +25,13 @@ obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
 endif
 ifeq ($(SOC),$(filter $(SOC),mx6 mx7))
 obj-y 	+= cache.o init.o
-obj-$(CONFIG_SATA) += sata.o
+obj-$(CONFIG_FEC_MXC) += mac.o
 obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o
 obj-$(CONFIG_IMX_RDC) += rdc-sema.o
 ifneq ($(CONFIG_SPL_BUILD),y)
 obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
 endif
+obj-$(CONFIG_SATA) += sata.o
 obj-$(CONFIG_SECURE_BOOT)    += hab.o
 obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o
 endif

arch/arm/mach-imx/mac.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * Peng Fan <peng.fan@nxp.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <errno.h>
+
+struct imx_mac_fuse {
+	u32 mac_addr0;
+	u32 rsvd0[3];
+	u32 mac_addr1;
+	u32 rsvd1[3];
+	u32 mac_addr2;
+	u32 rsvd2[7];
+};
+
+#define MAC_FUSE_MX6_OFFSET	0x620
+#define MAC_FUSE_MX7_OFFSET	0x640
+
+void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
+{
+	struct imx_mac_fuse *fuse;
+	u32 offset;
+	bool has_second_mac;
+
+	offset = is_mx6() ? MAC_FUSE_MX6_OFFSET : MAC_FUSE_MX7_OFFSET;
+	fuse = (struct imx_mac_fuse *)(ulong)(OCOTP_BASE_ADDR + offset);
+	has_second_mac = is_mx7() || is_mx6sx() || is_mx6ul() || is_mx6ull();
+
+	if (has_second_mac && dev_id == 1) {
+		u32 value = readl(&fuse->mac_addr2);
+
+		mac[0] = value >> 24;
+		mac[1] = value >> 16;
+		mac[2] = value >> 8;
+		mac[3] = value;
+
+		value = readl(&fuse->mac_addr1);
+		mac[4] = value >> 24;
+		mac[5] = value >> 16;
+
+	} else {
+		u32 value = readl(&fuse->mac_addr1);
+
+		mac[0] = value >> 8;
+		mac[1] = value;
+
+		value = readl(&fuse->mac_addr0);
+		mac[2] = value >> 24;
+		mac[3] = value >> 16;
+		mac[4] = value >> 8;
+		mac[5] = value;
+	}
+}

arch/arm/mach-imx/mx6/soc.c

@@ -518,40 +518,6 @@ int board_postclk_init(void)
 	return 0;
 }
 
-#if defined(CONFIG_FEC_MXC)
-void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
-{
-	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
-	struct fuse_bank *bank = &ocotp->bank[4];
-	struct fuse_bank4_regs *fuse =
-			(struct fuse_bank4_regs *)bank->fuse_regs;
-
-	if ((is_mx6sx() || is_mx6ul() || is_mx6ull()) && dev_id == 1) {
-		u32 value = readl(&fuse->mac_addr2);
-		mac[0] = value >> 24 ;
-		mac[1] = value >> 16 ;
-		mac[2] = value >> 8 ;
-		mac[3] = value ;
-
-		value = readl(&fuse->mac_addr1);
-		mac[4] = value >> 24 ;
-		mac[5] = value >> 16 ;
-		
-	} else {
-		u32 value = readl(&fuse->mac_addr1);
-		mac[0] = (value >> 8);
-		mac[1] = value ;
-
-		value = readl(&fuse->mac_addr0);
-		mac[2] = value >> 24 ;
-		mac[3] = value >> 16 ;
-		mac[4] = value >> 8 ;
-		mac[5] = value ;
-	}
-
-}
-#endif
-
 #ifndef CONFIG_SPL_BUILD
 /*
  * cfg_val will be used for

arch/arm/mach-imx/mx7/soc.c

@@ -208,38 +208,6 @@ void get_board_serial(struct tag_serialnr *serialnr)
 }
 #endif
 
-#if defined(CONFIG_FEC_MXC)
-void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
-{
-	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
-	struct fuse_bank *bank = &ocotp->bank[9];
-	struct fuse_bank9_regs *fuse =
-		(struct fuse_bank9_regs *)bank->fuse_regs;
-
-	if (0 == dev_id) {
-		u32 value = readl(&fuse->mac_addr1);
-		mac[0] = (value >> 8);
-		mac[1] = value;
-
-		value = readl(&fuse->mac_addr0);
-		mac[2] = value >> 24;
-		mac[3] = value >> 16;
-		mac[4] = value >> 8;
-		mac[5] = value;
-	} else {
-		u32 value = readl(&fuse->mac_addr2);
-		mac[0] = value >> 24;
-		mac[1] = value >> 16;
-		mac[2] = value >> 8;
-		mac[3] = value;
-
-		value = readl(&fuse->mac_addr1);
-		mac[4] = value >> 24;
-		mac[5] = value >> 16;
-	}
-}
-#endif
-
 #ifdef CONFIG_IMX_BOOTAUX
 int arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
 {