From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH 1/6] ARM: introduce debug_ll_pl011.h
Date: Sat, 27 Dec 2014 02:56:24 +0300 [thread overview]
Message-ID: <1419638189-5678-2-git-send-email-antonynpavlov@gmail.com> (raw)
In-Reply-To: <1419638189-5678-1-git-send-email-antonynpavlov@gmail.com>
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/arm/include/asm/debug_ll_pl011.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/arm/include/asm/debug_ll_pl011.h b/arch/arm/include/asm/debug_ll_pl011.h
new file mode 100644
index 0000000..db015a3
--- /dev/null
+++ b/arch/arm/include/asm/debug_ll_pl011.h
@@ -0,0 +1,25 @@
+#ifndef __INCLUDE_ARM_ASM_DEBUG_LL_PL011_H__
+#define __INCLUDE_ARM_ASM_DEBUG_LL_PL011_H__
+
+#ifndef DEBUG_LL_UART_ADDR
+#error DEBUG_LL_UART_ADDR is undefined!
+#endif
+
+#include <io.h>
+#include <linux/amba/serial.h>
+
+static inline void PUTC_LL(char c)
+{
+ /* Wait until there is space in the FIFO */
+ while (readl(DEBUG_LL_UART_ADDR + UART01x_FR) & UART01x_FR_TXFF)
+ ;
+
+ /* Send the character */
+ writel(c, DEBUG_LL_UART_ADDR + UART01x_DR);
+
+ /* Wait to make sure it hits the line, in case we die too soon. */
+ while (readl(DEBUG_LL_UART_ADDR + UART01x_FR) & UART01x_FR_TXFF)
+ ;
+}
+
+#endif /* __INCLUDE_ARM_ASM_DEBUG_LL_PL011_H__ */
--
2.1.3
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next prev parent reply other threads:[~2014-12-26 23:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-26 23:56 [PATCH 0/6] " Antony Pavlov
2014-12-26 23:56 ` Antony Pavlov [this message]
2014-12-26 23:56 ` [PATCH 2/6] ARM: vexpress: debug_ll.h: switch to debug_ll_pl011.h Antony Pavlov
2014-12-26 23:56 ` [PATCH 3/6] ARM: highbank: " Antony Pavlov
2014-12-26 23:56 ` [PATCH 4/6] ARM: versatile: enable missed HAS_DEBUG_LL Antony Pavlov
2014-12-26 23:56 ` [PATCH 5/6] ARM: versatile: debug_ll.h: switch to debug_ll_pl011.h Antony Pavlov
2014-12-26 23:56 ` [PATCH 6/6] ARM: bcm2835: add DEBUG_LL support Antony Pavlov
2015-01-05 11:34 ` [PATCH 0/6] ARM: introduce debug_ll_pl011.h Sascha Hauer
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