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authorShawn Guo <shawn.guo@linaro.org>2012-09-16 20:50:45 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-10-15 10:05:42 +0800
commit6dde5ac5220b3b9c28f82f291b64eca3e5ebe80d (patch)
treecdd1a0b89e2532a71c7270cb4c062b2f1e8ccead
parente69dc9a91eeb0387e08d8e1d0e576c88b28902fc (diff)
ARM: imx: move debug macros to include/debug
Move imx debug-macro.S over to common debug macro directory. It removes the inclusion to hardware.h by hard-coding the physical address of uart port and copying IMX_IO_P2V from hardware.h. Since we will need a common solution, which might use a fixed virtual address for uart port across platforms, we make a copy of IMX_IO_P2V here as a temporary solution to enable low-level debug for imx multi-platform build. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--arch/arm/Kconfig.debug8
-rw-r--r--arch/arm/include/debug/imx.S (renamed from arch/arm/mach-imx/include/mach/debug-macro.S)33
2 files changed, 30 insertions, 11 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index b0f3857b3a4..5566520686a 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -412,6 +412,14 @@ endchoice
config DEBUG_LL_INCLUDE
string
default "debug/icedcc.S" if DEBUG_ICEDCC
+ default "debug/imx.S" if DEBUG_IMX1_UART || \
+ DEBUG_IMX25_UART || \
+ DEBUG_IMX21_IMX27_UART || \
+ DEBUG_IMX31_IMX35_UART || \
+ DEBUG_IMX51_UART || \
+ DEBUG_IMX50_IMX53_UART ||\
+ DEBUG_IMX6Q_UART2 || \
+ DEBUG_IMX6Q_UART4
default "debug/highbank.S" if DEBUG_HIGHBANK_UART
default "debug/mvebu.S" if DEBUG_MVEBU_UART
default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
diff --git a/arch/arm/mach-imx/include/mach/debug-macro.S b/arch/arm/include/debug/imx.S
index 761e45f9456..0b65d792f66 100644
--- a/arch/arm/mach-imx/include/mach/debug-macro.S
+++ b/arch/arm/include/debug/imx.S
@@ -10,27 +10,38 @@
* published by the Free Software Foundation.
*
*/
-#include <mach/hardware.h>
-
#ifdef CONFIG_DEBUG_IMX1_UART
-#define UART_PADDR MX1_UART1_BASE_ADDR
+#define UART_PADDR 0x00206000
#elif defined (CONFIG_DEBUG_IMX25_UART)
-#define UART_PADDR MX25_UART1_BASE_ADDR
+#define UART_PADDR 0x43f90000
#elif defined (CONFIG_DEBUG_IMX21_IMX27_UART)
-#define UART_PADDR MX2x_UART1_BASE_ADDR
+#define UART_PADDR 0x1000a000
#elif defined (CONFIG_DEBUG_IMX31_IMX35_UART)
-#define UART_PADDR MX3x_UART1_BASE_ADDR
+#define UART_PADDR 0x43f90000
#elif defined (CONFIG_DEBUG_IMX51_UART)
-#define UART_PADDR MX51_UART1_BASE_ADDR
+#define UART_PADDR 0x73fbc000
#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
-#define UART_PADDR MX53_UART1_BASE_ADDR
+#define UART_PADDR 0x53fbc000
#elif defined (CONFIG_DEBUG_IMX6Q_UART2)
-#define UART_PADDR MX6Q_UART2_BASE_ADDR
+#define UART_PADDR 0x021e8000
#elif defined (CONFIG_DEBUG_IMX6Q_UART4)
-#define UART_PADDR MX6Q_UART4_BASE_ADDR
+#define UART_PADDR 0x021f0000
#endif
-#define UART_VADDR IMX_IO_ADDRESS(UART_PADDR)
+/*
+ * FIXME: This is a copy of IMX_IO_P2V in hardware.h, and needs to
+ * stay sync with that. It's hard to maintain, and should be fixed
+ * globally for multi-platform build to use a fixed virtual address
+ * for low-level debug uart port across platforms.
+ */
+#define IMX_IO_P2V(x) ( \
+ (((x) & 0x80000000) >> 7) | \
+ (0xf4000000 + \
+ (((x) & 0x50000000) >> 6) + \
+ (((x) & 0x0b000000) >> 4) + \
+ (((x) & 0x000fffff))))
+
+#define UART_VADDR IMX_IO_P2V(UART_PADDR)
.macro addruart, rp, rv, tmp
ldr \rp, =UART_PADDR @ physical