From: michal.simek@xilinx.com (Michal Simek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: zynq: Fix uart0 early console virtual address
Date: Wed, 14 May 2014 16:53:29 +0200 [thread overview]
Message-ID: <c2e5957287cc60655ac4cdd754bb34e874865d2a.1400079202.git.michal.simek@xilinx.com> (raw)
Virtual address have to have the same offset within
a 2MB aligned section of virtual/phycial address space.
Fix uart0 virtual address to be align with physical one.
Also remove UART_SIZE which is completely unused.
Reported-by: Russ Smith <russells@google.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
arch/arm/include/debug/zynq.S | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
index 0b762fafa758..3edfef7b34ae 100644
--- a/arch/arm/include/debug/zynq.S
+++ b/arch/arm/include/debug/zynq.S
@@ -20,18 +20,18 @@
#define UART_SR_TXEMPTY 0x00000008 /* TX FIFO empty */
#define UART0_PHYS 0xE0000000
+#define UART0_VIRT 0xF0000000
#define UART1_PHYS 0xE0001000
-#define UART_SIZE SZ_4K
-#define UART_VIRT 0xF0001000
+#define UART1_VIRT 0xF0001000
#if IS_ENABLED(CONFIG_DEBUG_ZYNQ_UART1)
# define LL_UART_PADDR UART1_PHYS
+# define LL_UART_VADDR UART1_VIRT
#else
# define LL_UART_PADDR UART0_PHYS
+# define LL_UART_VADDR UART0_VIRT
#endif
-#define LL_UART_VADDR UART_VIRT
-
.macro addruart, rp, rv, tmp
ldr \rp, =LL_UART_PADDR @ physical
ldr \rv, =LL_UART_VADDR @ virtual
--
1.8.2.3
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20140514/6dfcd305/attachment-0001.sig>
reply other threads:[~2014-05-14 14:53 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c2e5957287cc60655ac4cdd754bb34e874865d2a.1400079202.git.michal.simek@xilinx.com \
--to=michal.simek@xilinx.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).