[U-Boot] [PATCH 1/4] ARM: mx6: ddr: Make debug prints work with tiny printf

[Eric Nelson]

Hi Marek,

On 11/26/19 1:34 AM, Marek Vasut wrote:
> The %08X format returns just zeroes with tiny printf, which is
> horribly confusing, especially when debugging DRAM calibration
> problems. Change the format to %08x (with lowercase x), which
> behaves correctly with either implementation of printf in SPL.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Eric Nelson <eric at nelint.com>
> Cc: Fabio Estevam <fabio.estevam at nxp.com>
> Cc: Stefano Babic <sbabic at denx.de>
> ---
>   arch/arm/mach-imx/mx6/ddr.c | 24 ++++++++++++------------
>   1 file changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/mx6/ddr.c b/arch/arm/mach-imx/mx6/ddr.c
> index 84b9236249..e6f69e904f 100644
> --- a/arch/arm/mach-imx/mx6/ddr.c
> +++ b/arch/arm/mach-imx/mx6/ddr.c
> @@ -214,14 +214,14 @@ int mmdc_do_write_level_calibration(struct mx6_ddr_sysinfo const *sysinfo)
>   	writel(esdmisc_val, &mmdc0->mdref);
>   	writel(zq_val, &mmdc0->mpzqhwctrl);
>   
> -	debug("\tMMDC_MPWLDECTRL0 after write level cal: 0x%08X\n",
> +	debug("\tMMDC_MPWLDECTRL0 after write level cal: 0x%08x\n",
>   	      readl(&mmdc0->mpwldectrl0));
> -	debug("\tMMDC_MPWLDECTRL1 after write level cal: 0x%08X\n",
> +	debug("\tMMDC_MPWLDECTRL1 after write level cal: 0x%08x\n",
>   	      readl(&mmdc0->mpwldectrl1));
>   	if (sysinfo->dsize == 2) {
> -		debug("\tMMDC_MPWLDECTRL0 after write level cal: 0x%08X\n",
> +		debug("\tMMDC_MPWLDECTRL0 after write level cal: 0x%08x\n",
>   		      readl(&mmdc1->mpwldectrl0));
> -		debug("\tMMDC_MPWLDECTRL1 after write level cal: 0x%08X\n",
> +		debug("\tMMDC_MPWLDECTRL1 after write level cal: 0x%08x\n",
>   		      readl(&mmdc1->mpwldectrl1));
>   	}
>   
> @@ -557,20 +557,20 @@ int mmdc_do_dqs_calibration(struct mx6_ddr_sysinfo const *sysinfo)
>   	 */
>   	debug("MMDC registers updated from calibration\n");
>   	debug("Read DQS gating calibration:\n");
> -	debug("\tMPDGCTRL0 PHY0 = 0x%08X\n", readl(&mmdc0->mpdgctrl0));
> -	debug("\tMPDGCTRL1 PHY0 = 0x%08X\n", readl(&mmdc0->mpdgctrl1));
> +	debug("\tMPDGCTRL0 PHY0 = 0x%08x\n", readl(&mmdc0->mpdgctrl0));
> +	debug("\tMPDGCTRL1 PHY0 = 0x%08x\n", readl(&mmdc0->mpdgctrl1));
>   	if (sysinfo->dsize == 2) {
> -		debug("\tMPDGCTRL0 PHY1 = 0x%08X\n", readl(&mmdc1->mpdgctrl0));
> -		debug("\tMPDGCTRL1 PHY1 = 0x%08X\n", readl(&mmdc1->mpdgctrl1));
> +		debug("\tMPDGCTRL0 PHY1 = 0x%08x\n", readl(&mmdc1->mpdgctrl0));
> +		debug("\tMPDGCTRL1 PHY1 = 0x%08x\n", readl(&mmdc1->mpdgctrl1));
>   	}
>   	debug("Read calibration:\n");
> -	debug("\tMPRDDLCTL PHY0 = 0x%08X\n", readl(&mmdc0->mprddlctl));
> +	debug("\tMPRDDLCTL PHY0 = 0x%08x\n", readl(&mmdc0->mprddlctl));
>   	if (sysinfo->dsize == 2)
> -		debug("\tMPRDDLCTL PHY1 = 0x%08X\n", readl(&mmdc1->mprddlctl));
> +		debug("\tMPRDDLCTL PHY1 = 0x%08x\n", readl(&mmdc1->mprddlctl));
>   	debug("Write calibration:\n");
> -	debug("\tMPWRDLCTL PHY0 = 0x%08X\n", readl(&mmdc0->mpwrdlctl));
> +	debug("\tMPWRDLCTL PHY0 = 0x%08x\n", readl(&mmdc0->mpwrdlctl));
>   	if (sysinfo->dsize == 2)
> -		debug("\tMPWRDLCTL PHY1 = 0x%08X\n", readl(&mmdc1->mpwrdlctl));
> +		debug("\tMPWRDLCTL PHY1 = 0x%08x\n", readl(&mmdc1->mpwrdlctl));
>   
>   	/*
>   	 * Registers below are for debugging purposes.  These print out
> 

Reviewed-by: Eric Nelson <eric at nelint.com>