[PATCH v1 1/2] ARM: i.MX6 MMDC: Add register offset comments to struct

[Sascha Hauer]

On Thu, Sep 28, 2023 at 02:11:05PM +0200, Oleksij Rempel wrote:
> From: Sascha Hauer <s.hauer at pengutronix.de>
> 
> Lying structs over registers is a U-Boot paradigm I'll never understand.
> The only thing it does is to successfully prevent a reader from
> knowing/verifying the register offset without counting struct members. I
> am currently not in the mood of rewriting this, but at least add some
> comments with the register offsets as a debugging aid.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  include/mach/imx/imx6-mmdc.h | 100 +++++++++++++++++------------------
>  1 file changed, 50 insertions(+), 50 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/include/mach/imx/imx6-mmdc.h b/include/mach/imx/imx6-mmdc.h
> index bf8d41fe58..1df87bf6bd 100644
> --- a/include/mach/imx/imx6-mmdc.h
> +++ b/include/mach/imx/imx6-mmdc.h
> @@ -145,60 +145,60 @@ struct mx6sx_iomux_grp_regs {
>   */
>  #define MX6DQ_IOM_DDR_BASE      0x020e0500
>  struct mx6dq_iomux_ddr_regs {
> -	u32 res1[3];
> -	u32 dram_sdqs5;
> -	u32 dram_dqm5;
> -	u32 dram_dqm4;
> -	u32 dram_sdqs4;
> -	u32 dram_sdqs3;
> -	u32 dram_dqm3;
> -	u32 dram_sdqs2;
> -	u32 dram_dqm2;
> -	u32 res2[16];
> -	u32 dram_cas;
> -	u32 res3[2];
> -	u32 dram_ras;
> -	u32 dram_reset;
> -	u32 res4[2];
> -	u32 dram_sdclk_0;
> -	u32 dram_sdba2;
> -	u32 dram_sdcke0;
> -	u32 dram_sdclk_1;
> -	u32 dram_sdcke1;
> -	u32 dram_sdodt0;
> -	u32 dram_sdodt1;
> -	u32 res5;
> -	u32 dram_sdqs0;
> -	u32 dram_dqm0;
> -	u32 dram_sdqs1;
> -	u32 dram_dqm1;
> -	u32 dram_sdqs6;
> -	u32 dram_dqm6;
> -	u32 dram_sdqs7;
> -	u32 dram_dqm7;
> +	u32 res1[3];		/* 0x020e0500 */
> +	u32 dram_sdqs5;		/* 0x020e050c */
> +	u32 dram_dqm5;		/* 0x020e0510 */
> +	u32 dram_dqm4;		/* 0x020e0514 */
> +	u32 dram_sdqs4;		/* 0x020e0518 */
> +	u32 dram_sdqs3;		/* 0x020e051c */
> +	u32 dram_dqm3;		/* 0x020e0520 */
> +	u32 dram_sdqs2;		/* 0x020e0524 */
> +	u32 dram_dqm2;		/* 0x020e0528 */
> +	u32 res2[16];		/* 0x020e052c */
> +	u32 dram_cas;		/* 0x020e056c */
> +	u32 res3[2];		/* 0x020e0570 */
> +	u32 dram_ras;		/* 0x020e0578 */
> +	u32 dram_reset;		/* 0x020e057c */
> +	u32 res4[2];		/* 0x020e0580 */
> +	u32 dram_sdclk_0;	/* 0x020e0588 */
> +	u32 dram_sdba2;		/* 0x020e058c */
> +	u32 dram_sdcke0;	/* 0x020e0590 */
> +	u32 dram_sdclk_1;	/* 0x020e0594 */
> +	u32 dram_sdcke1;	/* 0x020e0598 */
> +	u32 dram_sdodt0;	/* 0x020e059c */
> +	u32 dram_sdodt1;	/* 0x020e05a0 */
> +	u32 res5;		/* 0x020e05a4 */
> +	u32 dram_sdqs0;		/* 0x020e05a8 */
> +	u32 dram_dqm0;		/* 0x020e05ac */
> +	u32 dram_sdqs1;		/* 0x020e05b0 */
> +	u32 dram_dqm1;		/* 0x020e05b4 */
> +	u32 dram_sdqs6;		/* 0x020e05b8 */
> +	u32 dram_dqm6;		/* 0x020e05bc */
> +	u32 dram_sdqs7;		/* 0x020e05c0 */
> +	u32 dram_dqm7;		/* 0x020e05c4 */
>  };
>  
>  #define MX6DQ_IOM_GRP_BASE      0x020e0700
>  struct mx6dq_iomux_grp_regs {
> -	u32 res1[18];
> -	u32 grp_b7ds;
> -	u32 grp_addds;
> -	u32 grp_ddrmode_ctl;
> -	u32 res2;
> -	u32 grp_ddrpke;
> -	u32 res3[6];
> -	u32 grp_ddrmode;
> -	u32 res4[3];
> -	u32 grp_b0ds;
> -	u32 grp_b1ds;
> -	u32 grp_ctlds;
> -	u32 res5;
> -	u32 grp_b2ds;
> -	u32 grp_ddr_type;
> -	u32 grp_b3ds;
> -	u32 grp_b4ds;
> -	u32 grp_b5ds;
> -	u32 grp_b6ds;
> +	u32 res1[18];		/* 0x020e0700 */
> +	u32 grp_b7ds;		/* 0x020e0748 */
> +	u32 grp_addds;		/* 0x020e074c */
> +	u32 grp_ddrmode_ctl;	/* 0x020e0750 */
> +	u32 res2;		/* 0x020e0754 */
> +	u32 grp_ddrpke;		/* 0x020e0758 */
> +	u32 res3[6];		/* 0x020e075c */
> +	u32 grp_ddrmode;	/* 0x020e0774 */
> +	u32 res4[3];		/* 0x020e0778 */
> +	u32 grp_b0ds;		/* 0x020e0784 */
> +	u32 grp_b1ds;		/* 0x020e0788 */
> +	u32 grp_ctlds;		/* 0x020e078c */
> +	u32 res5;		/* 0x020e0790 */
> +	u32 grp_b2ds;		/* 0x020e0794 */
> +	u32 grp_ddr_type;	/* 0x020e0798 */
> +	u32 grp_b3ds;		/* 0x020e079c */
> +	u32 grp_b4ds;		/* 0x020e07a0 */
> +	u32 grp_b5ds;		/* 0x020e07a4 */
> +	u32 grp_b6ds;		/* 0x020e07a8 */
>  };
>  
>  #define MX6SDL_IOM_DDR_BASE     0x020e0400
> -- 
> 2.39.2
> 
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |