update sources, add links

2 files changed, 26 insertions, 22 deletions

diff --git a/README.md b/README.md
index 179c650..84365da 100644
--- a/README.md
+++ b/README.md
@@ -1375,14 +1375,16 @@ In case on any bugs or questions, the authors can be contacted at kwojtus@proton
 
 # Sources of Information<a id="sec-15" name="sec-15"></a>
 
--   wiki.osdev
--   ARM Architecture Reference Manual® ARMv7-A and ARMv7-R edition (probably the most useful document of all)
--   dwelch67
--   <http://www.simtec.co.uk/products/SWLINUX/files/booting\_article.html> - very good description of atags
--   BCM2835-ARM-Peripherals.pdf and <https://elinux.org/BCM2835\_datasheet\_errata>
--   <https://buildmedia.readthedocs.org/media/pdf/devicetree-specification/latest/devicetree-specification.pdf>
--   online ARM Compiler toolchain Assembler Reference
--   Christina Brook's rpi-open-firmware
--   <http://infocenter.arm.com/help/topic/com.arm.doc.ddi0183g/DDI0183G\_uart\_pl011\_r1p5\_trm.pdf>
--   GNU make documentation
--   description of linker scripts: <https://access.redhat.com/documentation/en-US/Red\_Hat\_Enterprise\_Linux/4/html/Using\_ld\_the\_GNU\_Linker/sections.html#OUTPUT-SECTION-DESCRIPTION>
\ No newline at end of file
+-   wiki.osdev.org
+-   ARM GCC Inline Assembler Cookbook - <http://www.ethernut.de/en/documents/arm-inline-asm.html>
+-   ARM Architecture Reference Manual® ARMv7-A and ARMv7-R edition - <https://static.docs.arm.com/ddi0406/c/DDI0406C_C_arm_architecture_reference_manual.pdf> (probably the most useful document of all)
+-   dwelch67 repository - <https://github.com/dwelch67/raspberrypi>
+-   Booting ARM Linux - <http://www.simtec.co.uk/products/SWLINUX/files/booting_article.html> - very good description of atags
+-   BCM2835 ARM Peripherals - <https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf>
+    -   BCM2835 datasheet errata -  <https://elinux.org/BCM2835_datasheet_errata>
+-   Device Tree Specification - <https://buildmedia.readthedocs.org/media/pdf/devicetree-specification/latest/devicetree-specification.pdf>
+-   online ARM Compiler toolchain Assembler Reference - <http://infocenter.arm.com/help/topic/com.arm.doc.dui0489c/index.html> - useful for it's descriptions of arm instructions, often shows high in search results
+-   Christina Brook's rpi-open-firmware - <https://github.com/christinaa/rpi-open-firmware>
+-   PrimeCell UART (PL011) Technical Reference Manual - <http://infocenter.arm.com/help/topic/com.arm.doc.ddi0183g/DDI0183G_uart_pl011_r1p5_trm.pdf>
+-   GNU Make Manual - <https://www.gnu.org/software/make/manual/>
+-   Red Hat Enterprise Linux 4: Using ld, the Gnu Linker - <https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Using_ld_the_GNU_Linker/sections.html>
\ No newline at end of file
diff --git a/README.org b/README.org
index 4f6f7d8..9005e20 100644
--- a/README.org
+++ b/README.org
@@ -1308,14 +1308,16 @@ colleagues who happen to be work with the codebase.
 In case on any bugs or questions, the authors can be contacted at kwojtus@protonmail.com.
 
 * Sources of Information 
- * wiki.osdev
- * ARM Architecture Reference Manual® ARMv7-A and ARMv7-R edition (probably the most useful document of all)
- * dwelch67
- * http://www.simtec.co.uk/products/SWLINUX/files/booting\_article.html - very good description of atags
- * BCM2835-ARM-Peripherals.pdf and https://elinux.org/BCM2835\_datasheet\_errata
- * https://buildmedia.readthedocs.org/media/pdf/devicetree-specification/latest/devicetree-specification.pdf
- * online ARM Compiler toolchain Assembler Reference 
- * Christina Brook's rpi-open-firmware 
- * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0183g/DDI0183G\_uart\_pl011\_r1p5\_trm.pdf
- * GNU make documentation 
- * description of linker scripts: https://access.redhat.com/documentation/en-US/Red\_Hat\_Enterprise\_Linux/4/html/Using\_ld\_the\_GNU\_Linker/sections.html#OUTPUT-SECTION-DESCRIPTION
+ * wiki.osdev.org
+ * ARM GCC Inline Assembler Cookbook - [[http://www.ethernut.de/en/documents/arm-inline-asm.html]]
+ * ARM Architecture Reference Manual® ARMv7-A and ARMv7-R edition - [[https://static.docs.arm.com/ddi0406/c/DDI0406C_C_arm_architecture_reference_manual.pdf]] (probably the most useful document of all)
+ * dwelch67 repository - [[https://github.com/dwelch67/raspberrypi]]
+ * Booting ARM Linux - [[http://www.simtec.co.uk/products/SWLINUX/files/booting_article.html]] - very good description of atags
+ * BCM2835 ARM Peripherals - [[https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf]]
+   * BCM2835 datasheet errata -  [[https://elinux.org/BCM2835_datasheet_errata]]
+ * Device Tree Specification - [[https://buildmedia.readthedocs.org/media/pdf/devicetree-specification/latest/devicetree-specification.pdf]]
+ * online ARM Compiler toolchain Assembler Reference - [[http://infocenter.arm.com/help/topic/com.arm.doc.dui0489c/index.html]] - useful for it's descriptions of arm instructions, often shows high in search results
+ * Christina Brook's rpi-open-firmware - [[https://github.com/christinaa/rpi-open-firmware]]
+ * PrimeCell UART (PL011) Technical Reference Manual - [[http://infocenter.arm.com/help/topic/com.arm.doc.ddi0183g/DDI0183G_uart_pl011_r1p5_trm.pdf]]
+ * GNU Make Manual - [[https://www.gnu.org/software/make/manual/]]
+ * Red Hat Enterprise Linux 4: Using ld, the Gnu Linker - [[https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Using_ld_the_GNU_Linker/sections.html]]