armv8: LS2080A: Consolidate LS2080A and LS2085A

LS2080A is the primary SoC, and LS2085A is a personality with AIOP
and DPAA DDR. The RDB and QDS boards support both personality. By
detecting the SVR at runtime, a single image per board can support
both SoCs. It gives users flexibility to swtich SoC without the need
to reprogram the board.

Signed-off-by: York Sun <york.sun@nxp.com>
CC: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>

1 files changed, 25 insertions, 1 deletions

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index a76447ec27..0cb010012e 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -18,7 +18,31 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
+bool soc_has_dp_ddr(void)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 svr = gur_in32(&gur->svr);
+
+	/* LS2085A has DP_DDR */
+	if (SVR_SOC_VER(svr) == SVR_LS2085)
+		return true;
+
+	return false;
+}
+
+bool soc_has_aiop(void)
+{
+	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+	u32 svr = gur_in32(&gur->svr);
+
+	/* LS2085A has AIOP */
+	if (SVR_SOC_VER(svr) == SVR_LS2085)
+		return true;
+
+	return false;
+}
+
+#ifdef CONFIG_LS2080A
 /*
  * This erratum requires setting a value to eddrtqcr1 to
  * optimal the DDR performance.