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From: "Łukasz Dałek" <luk0104@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/6] h2200: Add support for iPAQ h2200
Date: Sat, 22 Sep 2012 20:34:08 +0200	[thread overview]
Message-ID: <505E04A0.8020100@gmail.com> (raw)
In-Reply-To: <201209222021.55703.marex@denx.de>

On 22.09.2012 20:21, Marek Vasut wrote:
>>>>>>>> +{
>>>>>>>> +	writel(val, addr);
>>>>>>>> +	asm volatile("" : : : "memory");
>>>>>>>> +	readl(addr);
>>>>>>>> +	asm volatile("" : : : "memory");
>>>>>>>> +}
>>>>>>>> +
>>>>>>>> +static void h2200_pxa2xx_dram_init(void)
>>>>>>> Why do you duplicate it ?!
>>>>>>>
>>>>>>> [...]
>>>>>> Because code in pxa2xx.c disable and then re-enable memory.
>>>>>> And u-boot is executed from memory (1st stage bootloder
>>>>>> copied it there).
>>>>> So don't reinit the memory at all, just skip this whole part.
>>>> 1st stage loader doesn't init everything (for example MSC).
>>> So I checked ... every board calls the dram init on it's own in
>>> dram_init() ... so just don't do that.
>> Do what? Don't call modified pxa2xx_dram_init?
> What exactly do you need to do ? What registers do you need to set ? How come
> the bootloader kick dram in, but won't configure MSC ?
>
> Split out the MSC config and memory config maybe ?

Ok, I will rewrite that.

?ukasz Da?ek

  reply	other threads:[~2012-09-22 18:34 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-19 19:38 [U-Boot] [PATCH 0/6] iPAQ h2200 support Łukasz Dałek
2012-09-19 19:38 ` [U-Boot] [PATCH 1/6] h2200: Add support for iPAQ h2200 Łukasz Dałek
2012-09-19 21:02   ` Marek Vasut
     [not found]     ` <505A3B2B.6080907@gmail.com>
2012-09-19 21:43       ` Marek Vasut
2012-09-19 21:54         ` Łukasz Dałek
2012-09-19 22:01           ` Marek Vasut
2012-09-19 22:16             ` Łukasz Dałek
2012-09-19 22:42               ` Marek Vasut
2012-09-19 22:51                 ` Łukasz Dałek
2012-09-19 22:56                   ` Marek Vasut
2012-09-19 23:07                     ` Łukasz Dałek
2012-09-19 23:09                       ` Marek Vasut
2012-09-19 23:20                         ` Łukasz Dałek
2012-09-19 23:25                           ` Marek Vasut
2012-09-19 23:36                             ` Łukasz Dałek
2012-09-19 23:43                               ` Marek Vasut
2012-09-19 23:51                                 ` Łukasz Dałek
2012-09-20  0:06                                   ` Marek Vasut
2012-09-20  5:49     ` Joe Hershberger
2012-09-20 12:14       ` Marek Vasut
2012-09-22 17:02     ` Łukasz Dałek
2012-09-22 17:04       ` Marek Vasut
2012-09-22 17:16         ` Łukasz Dałek
2012-09-22 18:00           ` Marek Vasut
2012-09-22 18:07             ` Łukasz Dałek
2012-09-22 18:21               ` Marek Vasut
2012-09-22 18:34                 ` Łukasz Dałek [this message]
2012-09-22 18:37                   ` Marek Vasut
2012-09-22 18:47                     ` Łukasz Dałek
2012-09-19 19:38 ` [U-Boot] [PATCH 2/6] pxa25x: Add USB Ethernet driver Łukasz Dałek
2012-09-19 21:03   ` Marek Vasut
     [not found]     ` <505A386D.7080302@gmail.com>
2012-09-19 21:39       ` Marek Vasut
2012-09-19 19:38 ` [U-Boot] [PATCH 3/6] pxa: Add some stuff to examine cpu model and rev Łukasz Dałek
2012-09-19 21:04   ` Marek Vasut
2012-09-19 19:38 ` [U-Boot] [PATCH 4/6] usbether: Fixed bug when using with PXA25X chips Łukasz Dałek
2012-09-19 19:38 ` [U-Boot] [PATCH 5/6] usbether: Define CONFIG_USB_ETH_{CDC,SUBSET} Łukasz Dałek
2012-09-19 19:38 ` [U-Boot] [PATCH 6/6] usbether: Removed DEV_CONFIG_{CDC,SUBSET} Łukasz Dałek
2012-09-19 23:10 ` [U-Boot] [PATCH 0/6] iPAQ h2200 support Marek Vasut
2012-09-20  6:36 ` Andreas Bießmann

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