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Commit c268a743 authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Olof Johansson
Browse files

ARM: at91/soc: add basic support for new sama5d2 SoC 



Add Kconfig entries, header file changes and addition to the documentation.
The early debug infrastructure is also added for easy development.

Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent f15107f4

Documentation/arm/Atmel/README

+5 −0
Original line number Diff line number Diff line
@@ -90,6 +90,11 @@ the Atmel website: http://www.atmel.com. 
        + Datasheet

          http://www.atmel.com/Images/Atmel-11238-32-bit-Cortex-A5-Microcontroller-SAMA5D4_Datasheet.pdf



      - sama5d2 family

        - sama5d27

        + Datasheet

          Coming soon





Linux kernel information

------------------------

Documentation/devicetree/bindings/arm/atmel-at91.txt

+2 −0
Original line number Diff line number Diff line
@@ -27,6 +27,8 @@ compatible: must be one of: 
    o "atmel,at91sam9xe"

 * "atmel,sama5" for SoCs using a Cortex-A5, shall be extended with the specific

   SoC family:

    o "atmel,sama5d2" shall be extended with the specific SoC compatible:

       - "atmel,sama5d27"

    o "atmel,sama5d3" shall be extended with the specific SoC compatible:

       - "atmel,sama5d31"

       - "atmel,sama5d33"

arch/arm/Kconfig.debug

+6 −0
Original line number Diff line number Diff line
@@ -141,6 +141,12 @@ choice 
		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



	config DEBUG_BCM2835

		bool "Kernel low-level debugging on BCM2835 PL011 UART"

		depends on ARCH_BCM2835

arch/arm/include/debug/at91.S

+4 −1
Original line number Diff line number Diff line
@@ -13,9 +13,12 @@ 
#define AT91_DBGU 0xfffff200 /* AT91_BASE_DBGU0 */

#elif defined(CONFIG_AT91_DEBUG_LL_DBGU1)

#define AT91_DBGU 0xffffee00 /* AT91_BASE_DBGU1 */

#else

#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

arch/arm/mach-at91/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -8,6 +8,18 @@ menuconfig ARCH_AT91 
	select SOC_BUS



if ARCH_AT91

config SOC_SAMA5D2

	bool "SAMA5D2 family" if ARCH_MULTI_V7

	select SOC_SAMA5

	select CACHE_L2X0

	select HAVE_FB_ATMEL

	select HAVE_AT91_UTMI

	select HAVE_AT91_USB_CLK

	select HAVE_AT91_H32MX

	select HAVE_AT91_GENERATED_CLK

	help

	  Select this if ou are using one of Atmel's SAMA5D2 family SoC.



config SOC_SAMA5D3

	bool "SAMA5D3 family" if ARCH_MULTI_V7

	select SOC_SAMA5