scripts: some more Core version fixes

Remove 2.3.0 code for ldscripts
Update

code/platformio.ini

@@ -52,19 +52,19 @@ platform_latest = espressif8266@2.6.3
 
 # 487 KB sketch,  4 KB eeprom, 16 KB reserved, no space for ota
 board_512k = esp01
-ldscript_512k = eagle.flash.512k0m1s.ld
+ldscript_512k = eagle.flash.512k.ld
 
 # 999 KB sketch,  4 KB eeprom, 16 KB reserved
 board_1m = esp01_1m
-ldscript_1m = eagle.flash.1m0m1s.ld
+ldscript_1m = eagle.flash.1m.ld
 
 # 1019 KB sketch, 16 KB eeprom,  992 KB fs, 16 KB reserved
 board_2m = esp_wroom_02
-ldscript_2m = eagle.flash.2m1m4s.ld
+ldscript_2m = eagle.flash.2m1m.ld
 
 # 1019 KB sketch, 16 KB eeprom,  992 KB fs, 16 KB reserved, 2048 KB empty/ota
 board_4m = esp12e
-ldscript_4m = eagle.flash.4m1m4s.ld
+ldscript_4m = eagle.flash.4m1m.ld
 
 # OPTIONAL:
 # 1019 KB sketch, 16 KB eeprom, 3040 KB fs, 16 KB reserved

code/scripts/espurna_utils/ldscripts.py

@@ -5,18 +5,4 @@ def ldscripts_inject_libpath(env):
     framework_dir = platform.get_package_dir("framework-arduinoespressif8266")
 
     libpath_base = os.path.join("$PROJECT_DIR", "..", "dist", "ld")
-
-    # we depend on different ldscript formats for old Core version
-    # TODO: 1.5.0 needs to be removed next release
-    # TODO: ldscript can be kept in the root of the repo
-    #       (as this was done originally, during 2.3.0...2.4.2 times)
-
-    if platform.version == "1.5.0":
-        libpath_sdk = os.path.join(framework_dir, "tools", "sdk", "ld")
-        env.Append(LIBPATH=[libpath_sdk])
-        env.Prepend(LIBPATH=[os.path.join(libpath_base, "pre_2.5.0")])
-    else:
-        local_ld = env.subst(
-            os.path.join("$BUILD_DIR", "ld", "local.eagle.app.v6.common.ld")
-        )
-        env.Prepend(LIBPATH=[os.path.join(libpath_base, "latest")])
+    env.Prepend(LIBPATH=[libpath_base])

dist/arduino_ide/README.md

@@ -13,8 +13,7 @@ Place boards.local.txt into Arduino hardware directory, in the same directory as
 - macOS (boards manager): `~/Library/Arduino15/packages/esp2866/hardware/esp8266/<version>`
 - macOS (git): `<application-directory>/Arduino.app/Contents/Java/hardware/esp8266com/esp8266`
 
-Use `2.3.0/boards.local.txt` for Core version 2.3.0  
-Use `latest/boards.local.txt` for all the others
+Use `latest/boards.local.txt` for Cores 2.7.4+
 
 
 ### Arduino documentation

dist/ld/README.md

@@ -1,8 +1,11 @@
-# ESP8266 linker scripts with additional EEPROM sectors
+# ESP8266 linker scripts override
 
-### Installation
+### PlatformIO
 
-Depending on ESP8266 version, use files from either `Pre 2.5.0` or `latest`  
-Reference [../arduino_ide/README.md](../arduino_ide/README.md) about ESP8266 package location
+Detected automatically, no extra steps required.
+
+### Arduino IDE
+
+Reference [../arduino\_ide/README.md](../arduino_ide/README.md) about ESP8266 package location
 
 Copy all \*.ld files into the `<esp8266-package>/tools/sdk/ld` directory