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Merge tag 'at91-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/soc

Merge "First little batch of SoC changes for 4.4" from Nicolas Ferre:

- a MAINTAINER addition to cover SAMA5 SoCs
- removal of one unneeded header file
- for low-level serial output, use the DEBUG_UART_PHYS

* tag 'at91-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: at91: debug: use DEBUG_UART_PHYS
  ARM: at91: remove useless includes in platform_data/atmel.h
  MAINTAINERS: explicitly add Atmel SAMA5
Arnd Bergmann 9 سال پیش
والد
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d64c5097ff
4فایلهای تغییر یافته به همراه21 افزوده شده و 48 حذف شده
  1. 1 1
      MAINTAINERS
  2. 16 25
      arch/arm/Kconfig.debug
  3. 4 14
      arch/arm/include/debug/at91.S
  4. 0 8
      include/linux/platform_data/atmel.h

+ 1 - 1
MAINTAINERS

@@ -917,7 +917,7 @@ M:	Tsahee Zidenberg <tsahee@annapurnalabs.com>
 S:	Maintained
 F:	arch/arm/mach-alpine/
 
-ARM/ATMEL AT91RM9200 AND AT91SAM ARM ARCHITECTURES
+ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 M:	Alexandre Belloni <alexandre.belloni@free-electrons.com>
 M:	Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>

+ 16 - 25
arch/arm/Kconfig.debug

@@ -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
+	config DEBUG_AT91_UART
+		bool "Kernel low-level debugging on Atmel SoCs"
 		depends on ARCH_AT91
-		depends on SOC_AT91RM9200 || SOC_AT91SAM9
+		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_DBGU1
-		bool "Kernel low-level debugging on 9263, 9g45 and sama5d3"
-		select DEBUG_AT91_UART
-		depends on ARCH_AT91
-		depends on SOC_AT91SAM9 || 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_DBGU2
-		bool "Kernel low-level debugging on sama5d4"
-		select DEBUG_AT91_UART
-		depends on ARCH_AT91
-		depends on SOC_SAMA5
-
-	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"

+ 4 - 14
arch/arm/include/debug/at91.S

@@ -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

+ 0 - 8
include/linux/platform_data/atmel.h

@@ -9,15 +9,7 @@
 
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
-#include <linux/device.h>
-#include <linux/i2c.h>
-#include <linux/leds.h>
-#include <linux/spi/spi.h>
-#include <linux/usb/atmel_usba_udc.h>
-#include <linux/atmel-mci.h>
-#include <sound/atmel-ac97c.h>
 #include <linux/serial.h>
-#include <linux/platform_data/macb.h>
 
 /*
  * at91: 6 USARTs and one DBGU port (SAM9260)