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MIPS: pci: Add MT7620a PCIE driver

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The "a" version of the MT7620 has single port PCIE bus. The driver is
straightforward without any special magic required. The driver works on
MT7620 and MT7628. There are a few magic values that get written to the
pcie phy and a register of which we only know the name. I marked these
places as vodoo in the comments above the code.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11996/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
John Crispin
2016-01-04 20:24:01 +01:00
committed by Ralf Baechle
parent 3b2e7c7c83
commit 7e5873d375
3 changed files with 428 additions and 0 deletions
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arch/mips/ralink/Kconfig
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@@ -38,6 +38,7 @@ choice
config SOC_MT7620
bool "MT7620/8"
select HW_HAS_PCI
config SOC_MT7621
bool "MT7621"