[U-Boot] [PATCH v3 4/4] qe: assgin pins to qe-hdlc

[Mingkai Hu]

> -----Original Message-----
> From: Zhao Qiang [mailto:qiang.zhao at nxp.com]
> Sent: Friday, January 29, 2016 10:51 AM
> To: Mingkai Hu
> Cc: trini at konsulko.com; york sun; u-boot at lists.denx.de; Qiang Zhao
> Subject: [PATCH v3 4/4] qe: assgin pins to qe-hdlc
> 
> qe-hdlc and usb multi-use the pins, when set hwconfig=qe-hdlc, assign the
> pins to qe-hdlc, if not, assgin it to usb
> 
> Signed-off-by: Zhao Qiang <qiang.zhao at nxp.com>
> ---
>  board/freescale/ls1043ardb/ls1043ardb.c | 51 ++++++++++++++++++++++++++-
> ------
>  1 file changed, 41 insertions(+), 10 deletions(-)
> 
> diff --git a/board/freescale/ls1043ardb/ls1043ardb.c
> b/board/freescale/ls1043ardb/ls1043ardb.c
> index c2d4887..a97a09a 100644
> --- a/board/freescale/ls1043ardb/ls1043ardb.c
> +++ b/board/freescale/ls1043ardb/ls1043ardb.c
> @@ -114,18 +114,24 @@ int config_board_mux(void)
>  	struct ccsr_scfg *scfg = (struct ccsr_scfg
> *)CONFIG_SYS_FSL_SCFG_ADDR;
>  	u32 usb_pwrfault;
> 
> +	if (hwconfig("qe-hdlc")) {
> +		out_be32(&scfg->rcwpmuxcr0,
> +			 (in_be32(&scfg->rcwpmuxcr0) & ~0xff00) | 0x6600);
> +		printf("Assign to qe-hdlc clk, rcwpmuxcr0=%x\n",
> +		       in_be32(&scfg->rcwpmuxcr0));
> +	} else {
>  #ifdef CONFIG_HAS_FSL_XHCI_USB
> -	out_be32(&scfg->rcwpmuxcr0, 0x3333);
> -	out_be32(&scfg->usbdrvvbus_selcr, SCFG_USBDRVVBUS_SELCR_USB1);
> -	usb_pwrfault = (SCFG_USBPWRFAULT_DEDICATED <<
> -			SCFG_USBPWRFAULT_USB3_SHIFT) |
> -			(SCFG_USBPWRFAULT_DEDICATED <<
> -			SCFG_USBPWRFAULT_USB2_SHIFT) |
> -			(SCFG_USBPWRFAULT_SHARED <<
> -			 SCFG_USBPWRFAULT_USB1_SHIFT);
> -	out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault);
> +		out_be32(&scfg->rcwpmuxcr0, 0x3333);
> +		out_be32(&scfg->usbdrvvbus_selcr, SCFG_USBDRVVBUS_SELCR_USB1);
> +		usb_pwrfault = (SCFG_USBPWRFAULT_DEDICATED <<
> +				SCFG_USBPWRFAULT_USB3_SHIFT) |
> +				(SCFG_USBPWRFAULT_DEDICATED <<
> +				SCFG_USBPWRFAULT_USB2_SHIFT) |
> +				(SCFG_USBPWRFAULT_SHARED <<
> +				 SCFG_USBPWRFAULT_USB1_SHIFT);
> +		out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault);
>  #endif
> -
> +	}
>  	return 0;
>  }
> 
> @@ -152,6 +158,16 @@ int misc_init_r(void)  }  #endif
> 
> +void fdt_del_qe(void *blob)
> +{
> +	int nodeoff = 0;
> +
> +	while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
> +				"fsl,qe")) >= 0) {
> +		fdt_del_node(blob, nodeoff);
> +	}
> +}
> +
>  int ft_board_setup(void *blob, bd_t *bd)  {
>  	u64 base[CONFIG_NR_DRAM_BANKS];
> @@ -169,6 +185,21 @@ int ft_board_setup(void *blob, bd_t *bd)  #ifdef
> CONFIG_SYS_DPAA_FMAN
>  	fdt_fixup_fman_ethernet(blob);
>  #endif
> +
> +	/* qe-hdlc and usb multi-use the pins,
> +	 * when set hwconfig to qe-hdlc, delete usb node.
> +	 */

Use multiple lines comments.
/*
 *
 */

> +	if (hwconfig("qe-hdlc"))
> +#ifdef CONFIG_HAS_FSL_XHCI_USB
> +		fdt_del_node_and_alias(blob, "usb1"); #endif
> +	/* qe just support qe-uart and qe-hdlc,
> +	 * if qe-uart and qe-hdlc are not set in hwconfig,
> +	 * delete qe node.
> +	 */

Ditto.

> +	if (!hwconfig("qe-uart") && !hwconfig("qe-hdlc"))
> +		fdt_del_qe(blob);
> +
>  	return 0;
>  }
> 
> --
> 2.1.0.27.g96db324