From a67c7d503a9847c336f83e362fa3b573113a82f7 Mon Sep 17 00:00:00 2001
From: Michael Coracin <mcoracin@semtech.com>
Date: Wed, 8 Jun 2016 15:59:50 +0200
Subject: [PATCH] v4.0.1

* HAL: SX1301AP2: Only FPGA v27 is supported, removed (v18,v19) from the list
        of supported FPGA images.

WARNING: If you are using a Semtech SX1301AP2 ref design (GW1.5), the FPGA must
be reprogrammed with one of the images provided with this release (fpga/ dir).
---
 libloragw/src/loragw_reg.c | 6 +++---
 readme.md                  | 8 ++++++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/libloragw/src/loragw_reg.c b/libloragw/src/loragw_reg.c
index 3f3c7e26..7fe0f67f 100644
--- a/libloragw/src/loragw_reg.c
+++ b/libloragw/src/loragw_reg.c
@@ -48,7 +48,7 @@ Maintainer: Sylvain Miermont
 #define PAGE_ADDR        0x00
 #define PAGE_MASK        0x03
 
-const uint8_t FPGA_VERSION[] = { 18, 19, 27 }; /* several versions supported */
+const uint8_t FPGA_VERSION[] = { 27 }; /* several versions could be supported */
 
 /*
 auto generated register mapping for C code : 11-Jul-2013 13:20:40
@@ -521,7 +521,7 @@ int lgw_connect(void) {
     }
     if (check_fpga_version(u) != true) {
         /* We failed to read expected FPGA version, so let's assume there is no FPGA */
-        DEBUG_MSG("INFO: no FPGA detected\n");
+        DEBUG_PRINTF("INFO: no FPGA detected or version not supported (v%u)\n", u);
         lgw_spi_mux_mode = LGW_SPI_MUX_MODE0;
     } else {
         DEBUG_PRINTF("INFO: detected FPGA with SPI mux header (v%u)\n", u);
@@ -536,7 +536,7 @@ int lgw_connect(void) {
     /* check SX1301 version */
     spi_stat |= lgw_spi_r(lgw_spi_target, lgw_spi_mux_mode, LGW_SPI_MUX_TARGET_SX1301, loregs[LGW_VERSION].addr, &u);
     if (u != loregs[LGW_VERSION].dflt) {
-        DEBUG_MSG("ERROR: NOT EXPECTED CHIP VERSION\n");
+        DEBUG_PRINTF("ERROR: NOT EXPECTED CHIP VERSION (v%u)\n", u);
         return LGW_REG_ERROR;
     }
 
diff --git a/readme.md b/readme.md
index 68b9ddab..22d60b6d 100644
--- a/readme.md
+++ b/readme.md
@@ -70,6 +70,14 @@ chip through GPIO, before starting any application using the concentrator.
 4. Changelog
 -------------
 
+### v4.0.1 ###
+
+* HAL: SX1301AP2: Only FPGA v27 is supported, removed (v18,v19) from the list
+        of supported FPGA images.
+
+WARNING: If you are using a Semtech SX1301AP2 ref design (GW1.5), the FPGA must
+be reprogrammed with one of the images provided with this release (fpga/ dir).
+
 ### v4.0.0 ###
 
 * HAL: Added "Listen-Before-Talk" support for Semtech SX1301AP2 Ref Design.