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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>
This commit is contained in:
Daniel Thompson 2015-01-09 18:34:03 +01:00 committed by Russell King
parent c26b999353
commit 4d31e66412
2 changed files with 25 additions and 13 deletions
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16
arch/arm/Kconfig.debug
View File

@ -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

22
arch/arm/mach-netx/include/mach/debug-macro.S → arch/arm/include/debug/netx.S
View File

@ -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