[PATCH 1/2] ARM: mvebu: Add support to get the ID and the revision of a SoC

[Gregory CLEMENT]

Hi Ben,

On 12/01/2014 04:57, Ben Hutchings wrote:
> On Thu, 2014-01-02 at 17:01 +0100, Gregory CLEMENT wrote:
>> All the mvebu SoCs have information related to their variant and
>> revision that can be read from the PCI control register.
>>
>> This patch adds support for Armada XP and Armada 370. This reading of
>> the revision and the ID are done before the PCI initialization to
>> avoid any conflicts. Once these data are retrieved, the resources are
>> freed to let the PCI subsystem use it.
> [...]
>> --- /dev/null
>> +++ b/include/linux/mvebu-soc-id.h
>> @@ -0,0 +1,32 @@
>> +/*
>> + * Marvell EBU SoC ID and revision definitions.
>> + *
>> + * Copyright (C) 2014 Marvell Semiconductor
>> + *
>> + * This file is licensed under the terms of the GNU General Public
>> + * License version 2.  This program is licensed "as is" without any
>> + * warranty of any kind, whether express or implied.
>> + */
>> +
>> +#ifndef __LINUX_MVEBU_SOC_ID_H
>> +#define __LINUX_MVEBU_SOC_ID_H
>> +
>> +/* Armada XP ID */
>> +#define MV78230_DEV_ID	    0x7823
>> +#define MV78260_DEV_ID	    0x7826
>> +#define MV78460_DEV_ID	    0x7846
>> +
>> +/* Armada XP Revision */
>> +#define MV78XX0_A0_REV	    0x1
>> +#define MV78XX0_B0_REV	    0x2
>> +
>> +#ifdef CONFIG_ARCH_MVEBU
>> +int mvebu_get_soc_id(u32 *dev, u32 *rev);
>> +#else
>> +int mvebu_get_soc_id(u32 *dev, u32 *rev)
> 
> This definition needs to be static inline, assuming anything will
> actually include this header when !defined(CONFIG_ARCH_MVEBU).
> 

Your review is appreciate, however there was 4 more version sent
since this one. And this issue was already pointed and then fixed
in the 3rd version.


Thanks,

Gregory



> Ben.
> 
>> +{
>> +	return -1;
>> +}
>> +#endif
>> +
>> +#endif /* __LINUX_MVEBU_SOC_ID_H */
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com