[U-Boot] [PATCH v8 2/4] mx28: Let imx_get_mac_from_fuse be common for mx28

[Marek Vasut <marek.vasut@gmail.com>]

> Let imx_get_mac_from_fuse function be a common function, so that other
> mx28 boards can reuse it.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
> Changes since v7:
> - Use unsigned char instead of char
> Changes since v6:
> - Let mac[5] be set inside mx28_adjust_mac
> Changes since v5:
> - Allow the MAC vendor to be overriden
> Changes since v4:
> - No changes
> Change since v3:
> - Add a note about the first two MAC addresses being from Freescale vendor.
>  arch/arm/cpu/arm926ejs/mx28/mx28.c |   46
> ++++++++++++++++++++++++++++++++++++ board/denx/m28evk/m28evk.c         | 
>  35 --------------------------- 2 files changed, 46 insertions(+), 35
> deletions(-)
> 
> diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> b/arch/arm/cpu/arm926ejs/mx28/mx28.c index 088c019..ee4e337 100644
> --- a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> +++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c
> @@ -214,6 +214,52 @@ int cpu_eth_init(bd_t *bis)
>  }
>  #endif
> 
> +static void __mx28_adjust_mac(int dev_id, unsigned char *mac)
> +{
> +	mac[0] = 0x00;
> +	mac[1] = 0x04; /* Use FSL vendor MAC address by default */
> +
> +	if (dev_id == 1) /* Let MAC1 be MAC0 + 1 by default */
> +		mac[5] += 1;
> +}
> +
> +void mx28_adjust_mac(int dev_id, unsigned char *mac)
> +	__attribute__((weak, alias("__mx28_adjust_mac")));
> +
> +#ifdef	CONFIG_MX28_FEC_MAC_IN_OCOTP
> +
> +#define	MXS_OCOTP_MAX_TIMEOUT	1000000
> +void imx_get_mac_from_fuse(int dev_id, unsigned 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[2] = (data >> 24) & 0xff;
> +	mac[3] = (data >> 16) & 0xff;
> +	mac[4] = (data >> 8) & 0xff;
> +	mac[5] = data & 0xff;
> +	mx28_adjust_mac(dev_id, mac);
> +}
> +#else
> +void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
> +{
> +	memset(mac, 0, 6);
> +}
> +#endif
> +
>  U_BOOT_CMD(
>  	clocks,	CONFIG_SYS_MAXARGS, 1, do_mx28_showclocks,
>  	"display clocks",
> diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c
> index a0fabc0..005446a 100644
> --- a/board/denx/m28evk/m28evk.c
> +++ b/board/denx/m28evk/m28evk.c
> @@ -178,39 +178,4 @@ int board_eth_init(bd_t *bis)
>  	return ret;
>  }
> 
> -#ifdef	CONFIG_M28_FEC_MAC_IN_OCOTP
> -
> -#define	MXS_OCOTP_MAX_TIMEOUT	1000000
> -void imx_get_mac_from_fuse(int dev_id, 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(int dev_id, char *mac)
> -{
> -	memset(mac, 0, 6);
> -}
> -#endif
> -
>  #endif

Acked-by: Marek Vasut <marek.vasut@gmail.com>