[PATCH] arm64: versal-net: Add support for SPP production version

[Michal Simek]

Production version restarting platform version field from 0 that's why add
new calculation to be able to use different DT for these platforms.
Requested DT names for production silicons for IPP/SPP and EMU platform are
versal-net-ipp-rev2.0.dts and versal-net-emu-rev2.0.dts.
If platform version increase numbers revision can be even higher.
As of today platform version is 2 that's why expected is rev2.2.

Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 .../mach-versal-net/include/mach/hardware.h   |  1 +
 board/xilinx/versal-net/board.c               | 35 +++++++++++++------
 2 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-versal-net/include/mach/hardware.h b/arch/arm/mach-versal-net/include/mach/hardware.h
index c5e4e22040e2..3de9d439bc5c 100644
--- a/arch/arm/mach-versal-net/include/mach/hardware.h
+++ b/arch/arm/mach-versal-net/include/mach/hardware.h
@@ -44,6 +44,7 @@ struct iou_scntrs_regs {
 #define PMC_TAP_VERSION		(PMC_TAP + 0x4)
 # define PMC_VERSION_MASK	GENMASK(7, 0)
 # define PS_VERSION_MASK	GENMASK(15, 8)
+# define PS_VERSION_PRODUCTION	0x20
 # define RTL_VERSION_MASK	GENMASK(23, 16)
 # define PLATFORM_MASK		GENMASK(27, 24)
 # define PLATFORM_VERSION_MASK	GENMASK(31, 28)
diff --git a/board/xilinx/versal-net/board.c b/board/xilinx/versal-net/board.c
index 6724c7290f8e..0e1321734f32 100644
--- a/board/xilinx/versal-net/board.c
+++ b/board/xilinx/versal-net/board.c
@@ -74,32 +74,45 @@ char *soc_name_decode(void)
 
 bool soc_detection(void)
 {
-	u32 version;
+	u32 version, ps_version;
 
 	version = readl(PMC_TAP_VERSION);
 	platform_id = FIELD_GET(PLATFORM_MASK, version);
+	ps_version = FIELD_GET(PS_VERSION_MASK, version);
 
 	debug("idcode %x, version %x, usercode %x\n",
 	      readl(PMC_TAP_IDCODE), version,
 	      readl(PMC_TAP_USERCODE));
 
-	debug("pmc_ver %lx, ps version %lx, rtl version %lx\n",
+	debug("pmc_ver %lx, ps version %x, rtl version %lx\n",
 	      FIELD_GET(PMC_VERSION_MASK, version),
-	      FIELD_GET(PS_VERSION_MASK, version),
+	      ps_version,
 	      FIELD_GET(RTL_VERSION_MASK, version));
 
 	platform_version = FIELD_GET(PLATFORM_VERSION_MASK, version);
 
 	if (platform_id == VERSAL_NET_SPP ||
 	    platform_id == VERSAL_NET_EMU) {
-		/*
-		 * 9 is diff for
-		 * 0 means 0.9 version
-		 * 1 means 1.0 version
-		 * 2 means 1.1 version
-		 * etc,
-		 */
-		platform_version += 9;
+		if (ps_version == PS_VERSION_PRODUCTION) {
+			/*
+			 * ES1 version ends at 1.9 version where there was +9
+			 * used because of IPP/SPP conversion. Production
+			 * version have platform_version started from 0 again
+			 * that's why adding +20 to continue with the same line.
+			 * It means the last ES1 version ends at 1.9 version and
+			 * new PRODUCTION line starts at 2.0.
+			 */
+			platform_version += 20;
+		} else {
+			/*
+			 * 9 is diff for
+			 * 0 means 0.9 version
+			 * 1 means 1.0 version
+			 * 2 means 1.1 version
+			 * etc,
+			 */
+			platform_version += 9;
+		}
 	}
 
 	debug("Platform id: %d version: %d.%d\n", platform_id,
-- 
2.36.1