From 565e39c57769a45a5eaed5e4c86357e817cf64e1 Mon Sep 17 00:00:00 2001 From: Liu Hui-R64343 Date: Thu, 18 Nov 2010 23:45:55 +0000 Subject: [PATCH] imx: Get fec mac address from fuse The patch is to support getting FEC MAC address from fuse bank. Signed-off-by: Jason Liu Tested-by: Stefano Babic --- arch/arm/cpu/arm926ejs/mx25/generic.c | 12 ++++++++ arch/arm/cpu/arm926ejs/mx27/generic.c | 12 ++++++++ arch/arm/cpu/armv7/mx5/soc.c | 14 ++++++++++ arch/arm/include/asm/arch-mx25/imx-regs.h | 19 +++++++------ arch/arm/include/asm/arch-mx27/imx-regs.h | 20 ++++++++----- arch/arm/include/asm/arch-mx5/imx-regs.h | 34 +++++++++++++++++++++++ drivers/net/fec_mxc.c | 17 ++---------- 7 files changed, 98 insertions(+), 30 deletions(-) diff --git a/arch/arm/cpu/arm926ejs/mx25/generic.c b/arch/arm/cpu/arm926ejs/mx25/generic.c index b80a389ed9..c6e114634a 100644 --- a/arch/arm/cpu/arm926ejs/mx25/generic.c +++ b/arch/arm/cpu/arm926ejs/mx25/generic.c @@ -260,4 +260,16 @@ void mx25_fec_init_pins (void) writel (outpadctl, &padctl->pad_fec_tdata1); } + +void imx_get_mac_from_fuse(unsigned char *mac) +{ + int i; + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[0]; + struct fuse_bank0_regs *fuse = + (struct fuse_bank0_regs *)bank->fuse_regs; + + for (i = 0; i < 6; i++) + mac[i] = readl(&fuse->mac_addr[i]) & 0xff; +} #endif /* CONFIG_FEC_MXC */ diff --git a/arch/arm/cpu/arm926ejs/mx27/generic.c b/arch/arm/cpu/arm926ejs/mx27/generic.c index ae2ce5841c..27642bfe7d 100644 --- a/arch/arm/cpu/arm926ejs/mx27/generic.c +++ b/arch/arm/cpu/arm926ejs/mx27/generic.c @@ -313,6 +313,18 @@ void mx27_fec_init_pins(void) for (i = 0; i < ARRAY_SIZE(mode); i++) imx_gpio_mode(mode[i]); } + +void imx_get_mac_from_fuse(unsigned char *mac) +{ + int i; + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[0]; + struct fuse_bank0_regs *fuse = + (struct fuse_bank0_regs *)bank->fuse_regs; + + for (i = 0; i < 6; i++) + mac[6 - 1 - i] = readl(&fuse->mac_addr[i]) & 0xff; +} #endif /* CONFIG_FEC_MXC */ #ifdef CONFIG_MXC_MMC diff --git a/arch/arm/cpu/armv7/mx5/soc.c b/arch/arm/cpu/armv7/mx5/soc.c index 7c7a565665..290011923e 100644 --- a/arch/arm/cpu/armv7/mx5/soc.c +++ b/arch/arm/cpu/armv7/mx5/soc.c @@ -100,6 +100,20 @@ int cpu_eth_init(bd_t *bis) return rc; } +#if defined(CONFIG_FEC_MXC) +void imx_get_mac_from_fuse(unsigned char *mac) +{ + int i; + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[1]; + struct fuse_bank1_regs *fuse = + (struct fuse_bank1_regs *)bank->fuse_regs; + + for (i = 0; i < 6; i++) + mac[i] = readl(&fuse->mac_addr[i]) & 0xff; +} +#endif + /* * Initializes on-chip MMC controllers. * to override, implement board_mmc_init() diff --git a/arch/arm/include/asm/arch-mx25/imx-regs.h b/arch/arm/include/asm/arch-mx25/imx-regs.h index f5a2929e22..55ad115a76 100644 --- a/arch/arm/include/asm/arch-mx25/imx-regs.h +++ b/arch/arm/include/asm/arch-mx25/imx-regs.h @@ -36,6 +36,7 @@ #ifndef __ASSEMBLY__ #ifdef CONFIG_FEC_MXC extern void mx25_fec_init_pins(void); +extern void imx_get_mac_from_fuse(unsigned char *mac); #endif /* Clock Control Module (CCM) registers */ @@ -129,12 +130,17 @@ struct iim_regs { u32 iim_srev; u32 iim_prog_p; u32 res1[0x1f5]; - u32 iim_bank_area0[0x20]; - u32 res2[0xe0]; - u32 iim_bank_area1[0x20]; - u32 res3[0xe0]; - u32 iim_bank_area2[0x20]; + struct fuse_bank { + u32 fuse_regs[0x20]; + u32 fuse_rsvd[0xe0]; + } bank[3]; }; + +struct fuse_bank0_regs { + u32 fuse0_25[0x1a]; + u32 mac_addr[6]; +}; + #endif /* AIPS 1 */ @@ -312,7 +318,4 @@ struct iim_regs { #define WSR_UNLOCK1 0x5555 #define WSR_UNLOCK2 0xAAAA -/* FUSE bank offsets */ -#define IIM0_MAC 0x1a - #endif /* _IMX_REGS_H */ diff --git a/arch/arm/include/asm/arch-mx27/imx-regs.h b/arch/arm/include/asm/arch-mx27/imx-regs.h index 6ecddaae85..8f40aa728c 100644 --- a/arch/arm/include/asm/arch-mx27/imx-regs.h +++ b/arch/arm/include/asm/arch-mx27/imx-regs.h @@ -34,6 +34,7 @@ extern void mx27_uart_init_pins(void); #ifdef CONFIG_FEC_MXC extern void mx27_fec_init_pins(void); +extern void imx_get_mac_from_fuse(unsigned char *mac); #endif /* CONFIG_FEC_MXC */ #ifdef CONFIG_MXC_MMC @@ -202,9 +203,19 @@ struct iim_regs { u32 iim_scs1; u32 iim_scs2; u32 iim_scs3; - u32 res[0x1F0]; - u32 iim_bank_area0[0x100]; + u32 res[0x1f1]; + struct fuse_bank { + u32 fuse_regs[0x20]; + u32 fuse_rsvd[0xe0]; + } bank[1]; }; + +struct fuse_bank0_regs { + u32 fuse0_3[5]; + u32 mac_addr[6]; + u32 fuse10_31[0x16]; +}; + #endif #define IMX_IO_BASE 0x10000000 @@ -512,9 +523,4 @@ struct iim_regs { #define IIM_ERR_SNSE (1 << 2) #define IIM_ERR_PARITYE (1 << 1) -/* Definitions for i.MX27 TO2 */ -#define IIM0_MAC 5 -#define IIM0_SCC_KEY 11 -#define IIM1_SUID 1 - #endif /* _IMX_REGS_H */ diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h index 0b6249a9b8..b45026d175 100644 --- a/arch/arm/include/asm/arch-mx5/imx-regs.h +++ b/arch/arm/include/asm/arch-mx5/imx-regs.h @@ -205,9 +205,13 @@ #define BOARD_REV_1_0 0x0 #define BOARD_REV_2_0 0x1 +#define IMX_IIM_BASE (IIM_BASE_ADDR) + #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) #include +extern void imx_get_mac_from_fuse(unsigned char *mac); + #define __REG(x) (*((volatile u32 *)(x))) #define __REG16(x) (*((volatile u16 *)(x))) #define __REG8(x) (*((volatile u8 *)(x))) @@ -275,6 +279,36 @@ struct src { u32 sisr; u32 simr; }; + +struct iim_regs { + u32 stat; + u32 statm; + u32 err; + u32 emask; + u32 fctl; + u32 ua; + u32 la; + u32 sdat; + u32 prev; + u32 srev; + u32 preg_p; + u32 scs0; + u32 scs1; + u32 scs2; + u32 scs3; + u32 res0[0x1f1]; + struct fuse_bank { + u32 fuse_regs[0x20]; + u32 fuse_rsvd[0xe0]; + } bank[4]; +}; + +struct fuse_bank1_regs { + u32 fuse0_8[9]; + u32 mac_addr[6]; + u32 fuse15_31[0x11]; +}; + #endif /* __ASSEMBLER__*/ #endif /* __ASM_ARCH_MXC_MX51_H__ */ diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index c17f9379bf..0d0f392d1e 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -312,21 +312,8 @@ static void fec_rbd_clean(int last, struct fec_bd *pRbd) static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac) { -/* - * The MX27 can store the mac address in internal eeprom - * This mechanism is not supported now by MX51 or MX25 - */ -#if defined(CONFIG_MX51) || defined(CONFIG_MX25) - return -1; -#else - struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; - int i; - - for (i = 0; i < 6; i++) - mac[6-1-i] = readl(&iim->iim_bank_area0[IIM0_MAC + i]); - + imx_get_mac_from_fuse(mac); return !is_valid_ether_addr(mac); -#endif } static int fec_set_hwaddr(struct eth_device *dev) @@ -754,7 +741,7 @@ static int fec_probe(bd_t *bd) eth_register(edev); if (fec_get_hwaddr(edev, ethaddr) == 0) { - printf("got MAC address from EEPROM: %pM\n", ethaddr); + printf("got MAC address from fuse: %pM\n", ethaddr); memcpy(edev->enetaddr, ethaddr, 6); } -- 2.25.1