armv8/ls2085a: Add workaround for USB erratum A-008751
Without this "USB may not work" according to the erratum text, though I
did not notice a problem without it.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/soc.c b/arch/arm/cpu/armv8/fsl-lsch3/soc.c
index 242a865..17700ef 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/soc.c
+++ b/arch/arm/cpu/armv8/fsl-lsch3/soc.c
@@ -7,8 +7,19 @@
#include <common.h>
#include <fsl_ifc.h>
#include <asm/arch-fsl-lsch3/soc.h>
+#include <asm/io.h>
+
+static void erratum_a008751(void)
+{
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008751
+ u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
+
+ writel(0x27672b2a, scfg + SCFG_USB3PRM1CR / 4);
+#endif
+}
void fsl_lsch3_early_init_f(void)
{
+ erratum_a008751();
init_early_memctl_regs(); /* tighten IFC timing */
}