From 6ce8b10b873e2c9812e2a82ca534396b9ae4f08b Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Wed, 10 Jan 2018 13:20:31 +0800 Subject: 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 Cc: Stefano Babic Cc: Fabio Estevam Reviewed-by: Stefano Babic --- arch/arm/mach-imx/mac.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 arch/arm/mach-imx/mac.c (limited to 'arch/arm/mach-imx/mac.c') diff --git a/arch/arm/mach-imx/mac.c b/arch/arm/mach-imx/mac.c new file mode 100644 index 00000000000..dd7fd92d313 --- /dev/null +++ b/arch/arm/mach-imx/mac.c @@ -0,0 +1,61 @@ +/* + * Copyright 2017 NXP + * + * Peng Fan + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +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; + } +} -- cgit v1.2.3