highbank: add custom ahci_link_up function
The Calxeda highbank SOC needs a custom sequence to bring up SATA links,
so override ahci_link_up with custom function to handle combophy setup.
Signed-off-by: Mark Langsdorf <mark.langsdorf@gmail.com>
Signed-off-by: Richard Gibbs
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andre Przywara <osp@andrep.de>
diff --git a/board/highbank/highbank.c b/board/highbank/highbank.c
index e8132b8..469ee8e 100644
--- a/board/highbank/highbank.c
+++ b/board/highbank/highbank.c
@@ -35,6 +35,8 @@
DECLARE_GLOBAL_DATA_PTR;
+void cphy_disable_overrides(void);
+
/*
* Miscellaneous platform dependent initialisations
*/
@@ -62,6 +64,7 @@
{
u32 reg = readl(HB_SREG_A9_PWRDOM_STAT);
+ cphy_disable_overrides();
if (reg & PWRDOM_STAT_SATA) {
ahci_init((void __iomem *)HB_AHCI_BASE);
scsi_scan(1);
@@ -136,3 +139,12 @@
wfi();
}
+
+/*
+ * turn off the override before transferring control to Linux, since Linux
+ * may not support spread spectrum.
+ */
+void arch_preboot_os(void)
+{
+ cphy_disable_overrides();
+}