ARM: add lolevel debug support for asm9260 (d5bd4e8d) · Commits · 戴 / test

arch/arm/Kconfig.debug

+26 −2

Original line number	Diff line number	Diff line
		@@ -93,6 +93,27 @@ choice
		prompt "Kernel low-level debugging port"
		depends on DEBUG_LL

		config DEBUG_ASM9260_UART
		bool "Kernel low-level debugging via asm9260 UART"
		depends on MACH_ASM9260
		help
		Say Y here if you want the debug print routines to direct
		their output to an UART or USART port on asm9260 based
		machines.

		DEBUG_UART_PHYS \| DEBUG_UART_VIRT

		0x80000000 \| 0xf0000000 \| UART0
		0x80004000 \| 0xf0004000 \| UART1
		0x80008000 \| 0xf0008000 \| UART2
		0x8000c000 \| 0xf000c000 \| UART3
		0x80010000 \| 0xf0010000 \| UART4
		0x80014000 \| 0xf0014000 \| UART5
		0x80018000 \| 0xf0018000 \| UART6
		0x8001c000 \| 0xf001c000 \| UART7
		0x80020000 \| 0xf0020000 \| UART8
		0x80024000 \| 0xf0024000 \| UART9

		config AT91_DEBUG_LL_DBGU0
		bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
		depends on HAVE_AT91_DBGU0
		@@ -1144,6 +1165,7 @@ config DEBUG_LL_INCLUDE
		string
		default "debug/sa1100.S" if DEBUG_SA1100
		default "debug/8250.S" if DEBUG_LL_UART_8250 \|\| DEBUG_UART_8250
		default "debug/asm9260.S" if DEBUG_ASM9260_UART
		default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 \|\| DEBUG_CLPS711X_UART2
		default "debug/meson.S" if DEBUG_MESON_UARTAO
		default "debug/pl01x.S" if DEBUG_LL_UART_PL01X \|\| DEBUG_UART_PL01X
		@@ -1248,6 +1270,7 @@ config DEBUG_UART_PHYS
		default 0x78000000 if DEBUG_CNS3XXX
		default 0x7c0003f8 if FOOTBRIDGE
		default 0x78000000 if DEBUG_CNS3XXX
		default 0x80010000 if DEBUG_ASM9260_UART
		default 0x80070000 if DEBUG_IMX23_UART
		default 0x80074000 if DEBUG_IMX28_UART
		default 0x80230000 if DEBUG_PICOXCELL_UART
		@@ -1297,13 +1320,14 @@ config DEBUG_UART_PHYS
		DEBUG_RCAR_GEN2_SCIF0 \|\| DEBUG_RCAR_GEN2_SCIF2 \|\| \
		DEBUG_RMOBILE_SCIFA0 \|\| DEBUG_RMOBILE_SCIFA1 \|\| \
		DEBUG_RMOBILE_SCIFA4 \|\| DEBUG_S3C24XX_UART \|\| \
		DEBUG_UART_BCM63XX
		DEBUG_UART_BCM63XX \|\| DEBUG_ASM9260_UART

		config DEBUG_UART_VIRT
		hex "Virtual base address of debug UART"
		default 0xe0010fe0 if ARCH_RPC
		default 0xe1000000 if DEBUG_MSM_UART
		default 0xf0000be0 if ARCH_EBSA110
		default 0xf0010000 if DEBUG_ASM9260_UART
		default 0xf01fb000 if DEBUG_NOMADIK_UART
		default 0xf0201000 if DEBUG_BCM2835
		default 0xf1000300 if DEBUG_BCM_5301X
		@@ -1374,7 +1398,7 @@ config DEBUG_UART_VIRT
		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_UART_BCM63XX
		DEBUG_UART_BCM63XX \|\| DEBUG_ASM9260_UART

		config DEBUG_UART_8250_SHIFT
		int "Register offset shift for the 8250 debug UART"

arch/arm/include/debug/asm9260.S

0 → 100644

+29 −0

Original line number	Diff line number	Diff line
		/* Debugging macro include header
		*
		* Copyright (C) 1994-1999 Russell King
		* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
		* Modified for ASM9260 by Oleksij Remepl <linux@rempel-privat.de>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*
		*/

		.macro addruart, rp, rv, tmp
		ldr \rp, = CONFIG_DEBUG_UART_PHYS
		ldr \rv, = CONFIG_DEBUG_UART_VIRT
		.endm

		.macro waituart,rd,rx
		.endm

		.macro senduart,rd,rx
		str \rd, [\rx, #0x50] @ TXDATA
		.endm

		.macro busyuart,rd,rx
		1002: ldr \rd, [\rx, #0x60] @ STAT
		tst \rd, #1 << 27 @ TXEMPTY
		beq 1002b @ wait until transmit done
		.endm

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