[ARM] Kirkwood: add support for newer SoC models

Add support to the Kirkwood port for newer device models and silicon
revisions.  Instead of looking at the DEVICE_ID register, the device
version is now determined by looking at the PCI-Express device ID and
revision registers, as it is done for orion5x, and this information
is used to determine the TCLK frequency, again, as it is done for
orion5x.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 2195fa31f6b7..f6b08f207c89 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -18,6 +18,12 @@
 
 #define PCIE_BASE       ((void __iomem *)PCIE_VIRT_BASE)
 
+void __init kirkwood_pcie_id(u32 *dev, u32 *rev)
+{
+        *dev = orion_pcie_dev_id(PCIE_BASE);
+        *rev = orion_pcie_rev(PCIE_BASE);
+}
+
 static int pcie_valid_config(int bus, int dev)
 {
         /*