lib: Remove samd21/samd51 customizations that are no longer necessary

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

lib/README

@@ -30,15 +30,15 @@ The samd21 directory contains code from the
 Atmel.SAMD21_DFP.1.3.304.atpack zip file found at:
   http://packs.download.atmel.com/
 version 1.3.304 (extracted on 20180725). It has been modified to
-compile with gcc's LTO feature and to work with chips that have a
+compile with gcc's LTO feature. See samd21.patch for the
-bootloader. See samd21.patch for the modifications.
+modifications.
 
 The samd51 directory contains code from the
 Atmel.SAMD51_DFP.1.1.96.atpack zip file found at:
   http://packs.download.atmel.com/
 version 1.1.96 (extracted on 20190110). It has been modified to
-compile with gcc's LTO feature and to work with chips that have a
+compile with gcc's LTO feature. See samd51.patch for the
-bootloader. See samd51.patch for the modifications.
+modifications.
 
 The lpc176x directory contains code from the mbed project:
   https://github.com/ARMmbed/mbed-os

lib/samd21/samd21.patch

@@ -1,16 +1,3 @@
-diff --git a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld
-index c6f289e7..34dfb6ba 100644
---- a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld
-+++ b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld
-@@ -35,7 +35,7 @@ SEARCH_DIR(.)
- /* Memory Spaces Definitions */
- MEMORY
- {
--  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
-+  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START , LENGTH = 0x00040000 - FLASH_START
-   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
- }
- 
 diff --git a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c b/lib/samd21/samd21a/gcc/gcc/startup_samd21.c
 index 3dce0edd..a480077f 100644
 --- a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c

lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START , LENGTH = 0x00040000 - FLASH_START
+  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00040000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
 }
 

lib/samd51/samd51.patch

@@ -1,58 +1,3 @@
-diff --git a/lib/samd51/samd51.patch b/lib/samd51/samd51.patch
-new file mode 100644
-index 00000000..e69de29b
-diff --git a/lib/samd51/samd51a/gcc/gcc/samd51g19a_flash.ld b/lib/samd51/samd51a/gcc/gcc/samd51g19a_flash.ld
-index bee9c68d..551597dc 100644
---- a/lib/samd51/samd51a/gcc/gcc/samd51g19a_flash.ld
-+++ b/lib/samd51/samd51a/gcc/gcc/samd51g19a_flash.ld
-@@ -35,7 +35,7 @@ SEARCH_DIR(.)
- /* Memory Spaces Definitions */
- MEMORY
- {
--  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
-+  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
-   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
-   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
-   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000
-diff --git a/lib/samd51/samd51a/gcc/gcc/samd51j19a_flash.ld b/lib/samd51/samd51a/gcc/gcc/samd51j19a_flash.ld
-index 3dfbe0d4..07ee9864 100644
---- a/lib/samd51/samd51a/gcc/gcc/samd51j19a_flash.ld
-+++ b/lib/samd51/samd51a/gcc/gcc/samd51j19a_flash.ld
-@@ -35,7 +35,7 @@ SEARCH_DIR(.)
- /* Memory Spaces Definitions */
- MEMORY
- {
--  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
-+  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
-   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
-   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
-   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000
-diff --git a/lib/samd51/samd51a/gcc/gcc/samd51n19a_flash.ld b/lib/samd51/samd51a/gcc/gcc/samd51n19a_flash.ld
-index ae77ba71..1c595648 100644
---- a/lib/samd51/samd51a/gcc/gcc/samd51n19a_flash.ld
-+++ b/lib/samd51/samd51a/gcc/gcc/samd51n19a_flash.ld
-@@ -35,7 +35,7 @@ SEARCH_DIR(.)
- /* Memory Spaces Definitions */
- MEMORY
- {
--  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
-+  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
-   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
-   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
-   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000
-diff --git a/lib/samd51/samd51a/gcc/gcc/samd51p20a_flash.ld b/lib/samd51/samd51a/gcc/gcc/samd51p20a_flash.ld
-index 60f73b47..4d8ad695 100644
---- a/lib/samd51/samd51a/gcc/gcc/samd51p20a_flash.ld
-+++ b/lib/samd51/samd51a/gcc/gcc/samd51p20a_flash.ld
-@@ -35,7 +35,7 @@ SEARCH_DIR(.)
- /* Memory Spaces Definitions */
- MEMORY
- {
--  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00100000
-+  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00100000 - FLASH_START
-   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040000
-   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
-   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000
 diff --git a/lib/samd51/samd51a/gcc/gcc/startup_samd51.c b/lib/samd51/samd51a/gcc/gcc/startup_samd51.c
 index d00bd7a2..42575901 100644
 --- a/lib/samd51/samd51a/gcc/gcc/startup_samd51.c

lib/samd51/samd51a/gcc/gcc/samd51g19a_flash.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
+  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000

lib/samd51/samd51a/gcc/gcc/samd51j19a_flash.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
+  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000

lib/samd51/samd51a/gcc/gcc/samd51n19a_flash.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00080000 - FLASH_START
+  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00080000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00030000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000

lib/samd51/samd51a/gcc/gcc/samd51p20a_flash.ld

@@ -35,7 +35,7 @@ SEARCH_DIR(.)
 /* Memory Spaces Definitions */
 MEMORY
 {
-  rom      (rx)  : ORIGIN = 0x00000000 + FLASH_START, LENGTH = 0x00100000 - FLASH_START
+  rom      (rx)  : ORIGIN = 0x00000000, LENGTH = 0x00100000
   ram      (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00040000
   bkupram  (rwx) : ORIGIN = 0x47000000, LENGTH = 0x00002000
   qspi     (rwx) : ORIGIN = 0x04000000, LENGTH = 0x01000000