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From: Helmut Raiger <helmut.raiger@hale.at>
To: u-boot@lists.denx.de
Subject: [U-Boot] [Resend PATCH V2 (forgot generic.c)] mx31: provide readable WEIM CS accessor
Date: Thu, 29 Sep 2011 16:01:50 +0200	[thread overview]
Message-ID: <4E847A4E.5000602@hale.at> (raw)
In-Reply-To: <4E8470D8.1030702@denx.de>

On 09/29/2011 03:21 PM, Stefano Babic wrote:
>
>>
>>   static u32 mx31_decode_pll(u32 reg, u32 infreq)
>>   {
>> @@ -126,6 +128,13 @@ void mx31_set_pad(enum iomux_pins pin, u32 config)
>>
>>   }
>>
>> +void mxc_setup_weimcs(int cs, const struct mxc_weimcs *weimcs)
>> +{
>> +	writel(weimcs->upper, WEIM_CSCR_U(cs));
>> +	writel(weimcs->lower, WEIM_CSCR_L(cs));
>> +	writel(weimcs->additional, WEIM_CSCR_A(cs));
>> +}
> Even if more hidden, the access is always made with base + offset,
> instead of defining a structure.
>

Do you really thing this is more readable:

------------ in imx_regs.h -----------

struct mx31_weim_cscr {
     u32 upper;
     u32 lower;
     u32 additional;
     u32 reserved;
};

struct mx31_weim {
     struct mx31_weim_cscr cscr[6];
};

-------------- in generic.c --------------

void mxc_setup_weimcs(int cs, const struct mxc_weimcs *weimcs)
{
     struct mx31_weim *weim = (struct mx31_weim *) WEIM_BASE;
     struct mx31_weim_cscr *cscr = &weim->cscr[cs];

     writel(weimcs->upper, &cscr->upper);
     writel(weimcs->lower, &cscr->lower);
     writel(weimcs->additional, &cscr->additional);
}


It seems pretty clumsy to me, but for sure a matter of taste.
Helmut



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  reply	other threads:[~2011-09-29 14:01 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-22 12:12 [U-Boot] mx31: Add board support for HALE TT-01 Helmut Raiger
2011-09-22 12:12 ` [U-Boot] [PATCH 1/2] mx31: define pins and init for UART2 and CSPI3 Helmut Raiger
2011-09-22 12:12 ` [U-Boot] [PATCH 2/2] TT-01: add basic board support for HALE TT-01 Helmut Raiger
2011-09-22 13:36   ` Fabio Estevam
2011-09-22 13:51   ` Stefano Babic
2011-10-06 13:07     ` Helmut Raiger
2011-10-06 13:27       ` Stefano Babic
2011-09-22 14:08   ` Wolfgang Denk
2011-09-28 12:48     ` [U-Boot] mx31: Approach for WEIM CS accessors Helmut Raiger
2011-09-28 12:48       ` [U-Boot] [PATCH] mx31: provide readable WEIM CS accessor Helmut Raiger
2011-09-28 15:14         ` Stefano Babic
2011-09-29  6:32           ` Helmut Raiger
2011-09-29  6:59             ` Stefano Babic
2011-09-29  7:30           ` Helmut Raiger
2011-09-29  9:17             ` Stefano Babic
2011-09-29 12:19         ` [U-Boot] [PATCH V2] " Helmut Raiger
2011-09-29 12:25         ` [U-Boot] [Resend PATCH V2 (forgot generic.c)] " Helmut Raiger
2011-09-29 13:21           ` Stefano Babic
2011-09-29 14:01             ` Helmut Raiger [this message]
2011-09-29 14:16               ` Stefano Babic
2011-09-29 14:55                 ` [U-Boot] [PATCH V3] " Helmut Raiger
2011-09-29 15:11                   ` Helmut Raiger
2011-09-29 15:19                     ` Stefano Babic
2011-09-29 15:45                 ` [U-Boot] [Resend PATCH " Helmut Raiger
2011-09-30  7:32                   ` Stefano Babic
2011-10-05 11:51                   ` Stefano Babic
2011-09-29 17:32               ` [U-Boot] [Resend PATCH V2 (forgot generic.c)] " Wolfgang Denk
2011-10-14  8:05 ` [U-Boot] [PATCH V2 1/3] mx31: define pins and init for UART2 and CSPI3 Helmut Raiger
2011-10-14  8:05   ` [U-Boot] [PATCH V2 2/3] mx31: add ESD control registers Helmut Raiger
2011-10-14 13:29     ` Stefano Babic
2011-10-14  8:05   ` [U-Boot] [PATCH V2 3/3] mx31: Add board support for HALE TT-01 Helmut Raiger
2011-10-14 11:04     ` Stefano Babic
2011-10-14 21:14       ` Wolfgang Denk
2011-10-15  5:40         ` stefano babic
2011-10-15  8:52           ` Wolfgang Denk
2011-10-15 11:11             ` Stefano Babic
2011-10-14 10:04   ` [U-Boot] [PATCH V2 1/3] mx31: define pins and init for UART2 and CSPI3 Stefano Babic
2011-10-27 11:31 ` [U-Boot] [PATCH V3 " Helmut Raiger
2011-10-27 11:31   ` [U-Boot] [PATCH V3 2/3] mx31: add ESD control registers Helmut Raiger
2011-10-27 12:49     ` Stefano Babic
2011-10-28  8:28     ` Stefano Babic
2011-10-27 11:31   ` [U-Boot] [PATCH V3 3/3] mx31: Add board support for HALE TT-01 Helmut Raiger
2011-10-27 12:59     ` Stefano Babic
2011-10-27 12:49   ` [U-Boot] [PATCH V3 1/3] mx31: define pins and init for UART2 and CSPI3 Stefano Babic
2011-10-28  8:28   ` Stefano Babic

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