speclib: explain meaning of BAR0 BAR4

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

speclib: explain meaning of BAR0 BAR4
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
6c9eec38 · Federico Vaga · 57339bf2 · 6c9eec38
Commit 6c9eec38 authored Jul 22, 2014 by Federico Vaga
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speclib.c tools/speclib.c +2 -0

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--- a/tools/speclib.c
+++ b/tools/speclib.c
@@ -20,7 +20,9 @@
 #include "wb_uart.h"

 struct spec_private {
+	/* BAR0 maps the local bus (i.e. we can access FGPA register) */
 	void *bar0;
+	/* BAR4 maps the local GN412x register */
 	void *bar4;
 	uint32_t vuart_base;
 };