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authorDaniel Thompson <daniel.thompson@linaro.org>2015-01-09 18:34:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2015-01-21 15:49:40 +0000
commit4d31e66412955b20081d6966c271a71d4abcefd7 (patch)
treef8cf99b71d85fe9e21a5ab1452996d9e908ef078 /arch/arm
parentc26b999353339c235b9e166739926d0199eeecbf (diff)
downloadlinux-4d31e66412955b20081d6966c271a71d4abcefd7.tar.bz2
ARM: 8272/1: netx: Migrate DEBUG_LL macros to shared directory
As part of the migration we introduce DEBUG_UART_PHYS/DEBUG_UART_VIRT which default to UART1 but allow a user to configure UART2 or UART3. We also introduce symbolic names for the registers and flags. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Arnd Bergmann <arnd.bergmann@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig.debug16
-rw-r--r--arch/arm/include/debug/netx.S (renamed from arch/arm/mach-netx/include/mach/debug-macro.S)22
2 files changed, 25 insertions, 13 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index ec25d746b4dd..ff43ea38fe1f 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -503,6 +503,13 @@ choice
Say Y here if you want kernel low-level debugging support
on Vybrid based platforms.
+ config DEBUG_NETX_UART
+ bool "Kernel low-level debugging messages via NetX UART"
+ depends on ARCH_NETX
+ help
+ Say Y here if you want kernel low-level debugging support
+ on Hilscher NetX based platforms.
+
config DEBUG_NOMADIK_UART
bool "Kernel low-level debugging messages via NOMADIK UART"
depends on ARCH_NOMADIK
@@ -1231,6 +1238,7 @@ config DEBUG_LL_INCLUDE
DEBUG_IMX6SX_UART
default "debug/ks8695.S" if DEBUG_KS8695_UART
default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
+ default "debug/netx.S" if DEBUG_NETX_UART
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2
default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0
@@ -1276,6 +1284,7 @@ config DEBUG_UART_BCM63XX
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
+ default 0x00100a00 if DEBUG_NETX_UART
default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
default 0x01c28000 if DEBUG_SUNXI_UART0
default 0x01c28400 if DEBUG_SUNXI_UART1
@@ -1364,7 +1373,8 @@ config DEBUG_UART_PHYS
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_LL_UART_EFM32 || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
- DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
+ DEBUG_MSM_UART || DEBUG_NETX_UART || \
+ DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \
DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \
DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
@@ -1373,6 +1383,7 @@ config DEBUG_UART_PHYS
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
+ default 0xe0000a00 if DEBUG_NETX_UART
default 0xe0010fe0 if ARCH_RPC
default 0xe1000000 if DEBUG_MSM_UART
default 0xf0000be0 if ARCH_EBSA110
@@ -1449,7 +1460,8 @@ config DEBUG_UART_VIRT
default DEBUG_UART_PHYS if !MMU
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
- DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
+ DEBUG_MSM_UART || DEBUG_NETX_UART || \
+ DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
config DEBUG_UART_8250_SHIFT
diff --git a/arch/arm/mach-netx/include/mach/debug-macro.S b/arch/arm/include/debug/netx.S
index 247781e096e2..81e1b2af70f7 100644
--- a/arch/arm/mach-netx/include/mach/debug-macro.S
+++ b/arch/arm/include/debug/netx.S
@@ -1,5 +1,4 @@
-/* arch/arm/mach-netx/include/mach/debug-macro.S
- *
+/*
* Debugging macro include header
*
* Copyright (C) 1994-1999 Russell King
@@ -11,26 +10,27 @@
*
*/
-#include "hardware.h"
+#define UART_DATA 0
+#define UART_FLAG 0x18
+#define UART_FLAG_BUSY (1 << 3)
.macro addruart, rp, rv, tmp
- mov \rp, #0x00000a00
- orr \rv, \rp, #io_p2v(0x00100000) @ virtual
- orr \rp, \rp, #0x00100000 @ physical
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT
.endm
.macro senduart,rd,rx
- str \rd, [\rx, #0]
+ str \rd, [\rx, #UART_DATA]
.endm
.macro busyuart,rd,rx
-1002: ldr \rd, [\rx, #0x18]
- tst \rd, #(1 << 3)
+1002: ldr \rd, [\rx, #UART_FLAG]
+ tst \rd, #UART_FLAG_BUSY
bne 1002b
.endm
.macro waituart,rd,rx
-1001: ldr \rd, [\rx, #0x18]
- tst \rd, #(1 << 3)
+1001: ldr \rd, [\rx, #UART_FLAG]
+ tst \rd, #UART_FLAG_BUSY
bne 1001b
.endm