Merge git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion

[cascardo/linux.git] / arch / arm / mach-kirkwood / ts41x-setup.c

diff --git a/arch/arm/mach-kirkwood/ts41x-setup.c b/arch/arm/mach-kirkwood/ts41x-setup.c
index 8be09a0..3587a28 100644 (file)
--- a/arch/arm/mach-kirkwood/ts41x-setup.c
+++ b/arch/arm/mach-kirkwood/ts41x-setup.c
@@ -27,6 +27,10 @@
 #include "mpp.h"
 #include "tsx1x-common.h"
 
+/* for the PCIe reset workaround */
+#include <plat/pcie.h>
+
+
 #define QNAP_TS41X_JUMPER_JP1  45
 
 static struct i2c_board_info __initdata qnap_ts41x_i2c_rtc = {
@@ -140,8 +144,16 @@ static void __init qnap_ts41x_init(void)
 
 static int __init ts41x_pci_init(void)
 {
-       if (machine_is_ts41x())
+       if (machine_is_ts41x()) {
+               /*
+                * Without this explicit reset, the PCIe SATA controller
+                * (Marvell 88sx7042/sata_mv) is known to stop working
+                * after a few minutes.
+                */
+               orion_pcie_reset((void __iomem *)PCIE_VIRT_BASE);
+
                kirkwood_pcie_init(KW_PCIE0);
+       }
 
    return 0;
 }