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Commit 6f112a08 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Nicolas Ferre
Browse files

ARM: at91: debug: use DEBUG_UART_PHYS 



Instead of having to add a new configuration option each time support for
new SoC is added, use CONFIG_DEBUG_UART_PHYS. For now,
CONFIG_DEBUG_UART_VIRT is automatically computed.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
parent d6157e4f

arch/arm/Kconfig.debug

+16 −25
Original line number Diff line number Diff line
@@ -123,29 +123,23 @@ choice 
		    0x80020000      | 0xf0020000     | UART8

		    0x80024000      | 0xf0024000     | UART9



	config AT91_DEBUG_LL_DBGU0

		bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12"

		select DEBUG_AT91_UART

		depends on ARCH_AT91

		depends on SOC_AT91RM9200 || SOC_AT91SAM9



	config AT91_DEBUG_LL_DBGU1

		bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"

		select DEBUG_AT91_UART

	config DEBUG_AT91_UART

		bool "Kernel low-level debugging on Atmel SoCs"

		depends on ARCH_AT91

		depends on SOC_AT91SAM9 || SOC_SAMA5

		help

		  Say Y here if you want the debug print routines to direct

		  their output to the serial port on atmel devices.



	config AT91_DEBUG_LL_DBGU2

		bool "Kernel low-level debugging on sama5d4"

		select DEBUG_AT91_UART

		depends on ARCH_AT91

		depends on SOC_SAMA5

		  SOC                  DEBUG_UART_PHYS   DEBUG_UART_VIRT  PORT

		  rm9200, 9260/9g20,   0xfffff200        0xfefff200       DBGU

		  9261/9g10, 9rl

		  9263, 9g45, sama5d3  0xffffee00        0xfeffee00       DBGU

		  sama5d4              0xfc00c000        0xfb00c000       USART3

		  sama5d4              0xfc069000        0xfb069000       DBGU

		  sama5d2              0xf8020000        0xf7020000       UART1



	config AT91_DEBUG_LL_DBGU3

		bool "Kernel low-level debugging on sama5d2"

		select DEBUG_AT91_UART

		depends on ARCH_AT91

		depends on SOC_SAMA5

		  Please adjust DEBUG_UART_PHYS configuration options based on

		  your needs.



	config DEBUG_BCM2835

		bool "Kernel low-level debugging on BCM2835 PL011 UART"
@@ -1249,10 +1243,6 @@ choice 


endchoice



config DEBUG_AT91_UART

	bool

	depends on ARCH_AT91



config DEBUG_EXYNOS_UART

	bool
@@ -1485,7 +1475,8 @@ config DEBUG_UART_PHYS 
		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \

		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \

		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \

		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0

		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \

		DEBUG_AT91_UART



config DEBUG_UART_VIRT

	hex "Virtual base address of debug UART"

arch/arm/include/debug/at91.S

+4 −14
Original line number Diff line number Diff line
@@ -9,32 +9,22 @@ 
 *

*/



#if defined(CONFIG_AT91_DEBUG_LL_DBGU0)

#define AT91_DBGU 0xfffff200 /* AT91_BASE_DBGU0 */

#elif defined(CONFIG_AT91_DEBUG_LL_DBGU1)

#define AT91_DBGU 0xffffee00 /* AT91_BASE_DBGU1 */

#elif defined(CONFIG_AT91_DEBUG_LL_DBGU2)

/* On sama5d4, use USART3 as low level serial console */

#define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */

#else

/* On sama5d2, use UART1 as low level serial console */

#define AT91_DBGU 0xf8020000

#endif



#ifdef CONFIG_MMU

#define AT91_IO_P2V(x) ((x) - 0x01000000)

#else

#define AT91_IO_P2V(x) (x)

#endif



#define CONFIG_DEBUG_UART_VIRT AT91_IO_P2V(CONFIG_DEBUG_UART_PHYS)



#define AT91_DBGU_SR		(0x14)	/* Status Register */

#define AT91_DBGU_THR		(0x1c)	/* Transmitter Holding Register */

#define AT91_DBGU_TXRDY		(1 << 1)	/* Transmitter Ready */

#define AT91_DBGU_TXEMPTY	(1 << 9)	/* Transmitter Empty */



	.macro	addruart, rp, rv, tmp

	ldr	\rp, =AT91_DBGU				@ System peripherals (phys address)

	ldr	\rv, =AT91_IO_P2V(AT91_DBGU)		@ System peripherals (virt address)

	ldr	\rp, =CONFIG_DEBUG_UART_PHYS		@ System peripherals (phys address)

	ldr	\rv, =CONFIG_DEBUG_UART_VIRT		@ System peripherals (virt address)

	.endm



	.macro	senduart,rd,rx