From: Vipin Kumar <vipin.kumar@st.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH resend] spi/arm-pl022: Add support for ARM PL022 spi controller
Date: Wed, 12 Dec 2012 16:45:02 +0530 [thread overview]
Message-ID: <50C86736.5010206@st.com> (raw)
In-Reply-To: <50C8660E.4060800@st.com>
On 12/12/2012 4:40 PM, Armando VISCONTI wrote:
>>>> +
>>>> +/* SSP registers mapping */
>>>> +#define SSP_CR0 0x000
>>>> +#define SSP_CR1 0x004
>>>> +#define SSP_DR 0x008
>>>> +#define SSP_SR 0x00C
>>>> +#define SSP_CPSR 0x010
>>>> +#define SSP_IMSC 0x014
>>>> +#define SSP_RIS 0x018
>>>> +#define SSP_MIS 0x01C
>>>> +#define SSP_ICR 0x020
>>>> +#define SSP_DMACR 0x024
>>>> +#define SSP_ITCR 0x080
>>>> +#define SSP_ITIP 0x084
>>>> +#define SSP_ITOP 0x088
>>>> +#define SSP_TDR 0x08C
>>>
>>> Please use C-structs instead to access the registers.
>>>
>>
>> May be this patch is a ripped version from linux. That's why
>> Thanks. I will do this in v2
>>
>
> Yes,
> I took this part from the linux pl022 driver.
>
> Never understood which way (C-struct or defines) is preferable
> and why...
>
U-boot uses the structure way(I do not exactly understand why) and the
kernel code uses both ways
I would change it to use the structure
> Rgds,
> Arm
>
>
Vipin
next prev parent reply other threads:[~2012-12-12 11:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 6:56 [U-Boot] [PATCH resend] spi/arm-pl022: Add support for ARM PL022 spi controller Vipin Kumar
2012-12-06 8:05 ` Stefan Roese
2012-12-12 10:00 ` Vipin Kumar
2012-12-12 10:18 ` Stefan Roese
2012-12-12 10:32 ` Vipin Kumar
2012-12-12 11:10 ` Armando Visconti
2012-12-12 11:15 ` Vipin Kumar [this message]
2012-12-12 11:29 ` Stefan Roese
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