[PATCH v3] ARM: mvebu: Use system controller to get the soc id when possible
jason at lakedaemon.net
Mon Jun 23 15:03:18 PDT 2014
On Mon, Jun 23, 2014 at 05:42:08PM +0200, Gregory CLEMENT wrote:
> On Armada 38x it is possible to get the SoC Id and the revision
> without using the PCI register. Accessing the PCI registers implies
> enabling its clock and, because of the initialization issue, not
> keeping them enable. So if possible it is better to avoid it.
> Armada 370 and Armada XP provides the SoC ID values from the system
> controller but not the revision.
> Armada 375 provides both but the SoC ID value looks buggy (0x6660
> instead of 0x6720).
> Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
> The main difference with the previous version is the use of
> marvell,aramda380 instead of marvell,aramda38x which have been removed
> in a previous patch.
> v1 -> v2:
> - Fix typo in mvebu_system_controller_get_soc_id.
> - Use -ENODEV as return value instead of -1
> v2 -> v3:
> - Use marvell,aramda380 as compatible string
> - Fix a typo
> - Remove a white space
> arch/arm/mach-mvebu/common.h | 1 +
> arch/arm/mach-mvebu/mvebu-soc-id.c | 19 ++++++++++++++++++-
> arch/arm/mach-mvebu/system-controller.c | 19 +++++++++++++++++++
> 3 files changed, 38 insertions(+), 1 deletion(-)
Applied to mvebu/soc
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