[PATCH 19/34] ARM AT91: switch to barebox_arm_entry part1

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Sun Jan 27 05:51:35 EST 2013


On 11:46 Sun 27 Jan     , Sascha Hauer wrote:
> This switches the at91sam926x, 9g10 and 9g20 over to barebox_arm_entry.
> For these SoCs we currently support reading back the memory size from
> the SDRAM controller, so all of these can have a common reset() function.

can we wait after the cleanup on lowlevel

as I'm cleaning the AT91_BASE_SYS

patch send with 9261ek boostrao support

can you rebase over

at91sam9260/9g20/9261/9g10/9263: split soc lowlevel_init from generic

Best Regards,
J.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  arch/arm/boards/at91sam9263ek/Makefile         |    4 ++--
>  arch/arm/boards/mmccpu/Makefile                |    4 ++--
>  arch/arm/boards/pm9261/Makefile                |    4 ++--
>  arch/arm/boards/pm9263/Makefile                |    4 ++--
>  arch/arm/boards/tny-a926x/Makefile             |    4 ++--
>  arch/arm/boards/usb-a926x/Makefile             |    4 ++--
>  arch/arm/mach-at91/Kconfig                     |   19 ++++++++++++++-----
>  arch/arm/mach-at91/Makefile                    |   10 +++++++---
>  arch/arm/mach-at91/at91sam926x_lowlevel_init.c |   11 ++++++++++-
>  9 files changed, 43 insertions(+), 21 deletions(-)
> 
> diff --git a/arch/arm/boards/at91sam9263ek/Makefile b/arch/arm/boards/at91sam9263ek/Makefile
> index b6460c3..1702783 100644
> --- a/arch/arm/boards/at91sam9263ek/Makefile
> +++ b/arch/arm/boards/at91sam9263ek/Makefile
> @@ -1,5 +1,5 @@
>  obj-y += init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
> diff --git a/arch/arm/boards/mmccpu/Makefile b/arch/arm/boards/mmccpu/Makefile
> index b6460c3..1702783 100644
> --- a/arch/arm/boards/mmccpu/Makefile
> +++ b/arch/arm/boards/mmccpu/Makefile
> @@ -1,5 +1,5 @@
>  obj-y += init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
> diff --git a/arch/arm/boards/pm9261/Makefile b/arch/arm/boards/pm9261/Makefile
> index b6460c3..1702783 100644
> --- a/arch/arm/boards/pm9261/Makefile
> +++ b/arch/arm/boards/pm9261/Makefile
> @@ -1,5 +1,5 @@
>  obj-y += init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
> diff --git a/arch/arm/boards/pm9263/Makefile b/arch/arm/boards/pm9263/Makefile
> index b6460c3..1702783 100644
> --- a/arch/arm/boards/pm9263/Makefile
> +++ b/arch/arm/boards/pm9263/Makefile
> @@ -1,5 +1,5 @@
>  obj-y += init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += lowlevel_init.o
> diff --git a/arch/arm/boards/tny-a926x/Makefile b/arch/arm/boards/tny-a926x/Makefile
> index 36ea09f..caa7163 100644
> --- a/arch/arm/boards/tny-a926x/Makefile
> +++ b/arch/arm/boards/tny-a926x/Makefile
> @@ -5,6 +5,6 @@ obj-$(CONFIG_AT91_BOOTSTRAP) += $(bootstrap-y)
>  
>  lowlevel_init-$(CONFIG_MACH_TNY_A9263) = tny_a9263_lowlevel_init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += $(lowlevel_init-y)
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += $(lowlevel_init-y)
> diff --git a/arch/arm/boards/usb-a926x/Makefile b/arch/arm/boards/usb-a926x/Makefile
> index e314dd5..88f163f 100644
> --- a/arch/arm/boards/usb-a926x/Makefile
> +++ b/arch/arm/boards/usb-a926x/Makefile
> @@ -5,6 +5,6 @@ obj-$(CONFIG_AT91_BOOTSTRAP) += $(bootstrap-y)
>  
>  lowlevel_init-$(CONFIG_MACH_USB_A9263) = usb_a9263_lowlevel_init.o
>  
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +obj-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += $(lowlevel_init-y)
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +pbl-$(CONFIG_HAVE_AT91_LOWLEVEL_INIT) += $(lowlevel_init-y)
> diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
> index 9d4359e..4f30650 100644
> --- a/arch/arm/mach-at91/Kconfig
> +++ b/arch/arm/mach-at91/Kconfig
> @@ -6,6 +6,9 @@ config HAVE_AT91_DBGU0
>  config HAVE_AT91_DBGU1
>  	bool
>  
> +config HAVE_AT91_LOWLEVEL_INIT
> +	bool
> +
>  config AT91SAM9_SMC
>  	bool
>  
> @@ -77,6 +80,8 @@ config SOC_AT91SAM9260
>  	select HAVE_AT91_DBGU0
>  	select HAS_MACB
>  	select AT91SAM9_RESET
> +	select MACH_HAS_LOWLEVEL_INIT
> +	select MACH_DO_LOWLEVEL_INIT
>  	help
>  	  Select this if you are using one of Atmel's AT91SAM9260, AT91SAM9XE
>  	  or AT91SAM9G20 SoC.
> @@ -86,6 +91,8 @@ config SOC_AT91SAM9261
>  	select SOC_AT91SAM9
>  	select HAVE_AT91_DBGU0
>  	select AT91SAM9_RESET
> +	select MACH_HAS_LOWLEVEL_INIT
> +	select MACH_DO_LOWLEVEL_INIT
>  	help
>  	  Select this if you are using one of Atmel's AT91SAM9261 or AT91SAM9G10 SoC.
>  
> @@ -95,6 +102,8 @@ config SOC_AT91SAM9263
>  	select HAVE_AT91_DBGU1
>  	select HAS_MACB
>  	select AT91SAM9_RESET
> +	select MACH_HAS_LOWLEVEL_INIT
> +	select MACH_DO_LOWLEVEL_INIT
>  
>  config SOC_AT91SAM9G45
>  	bool
> @@ -263,7 +272,7 @@ config MACH_AT91SAM9261EK
>  config MACH_PM9261
>  	bool "Ronetix PM9261"
>  	select HAS_DM9000
> -	select MACH_HAS_LOWLEVEL_INIT
> +	select HAVE_AT91_LOWLEVEL_INIT
>  	help
>  	  Say y here if you are using the Ronetix PM9261 Board
>  
> @@ -338,7 +347,7 @@ choice
>  
>  config MACH_AT91SAM9263EK
>  	bool "Atmel AT91SAM9263-EK"
> -	select MACH_HAS_LOWLEVEL_INIT
> +	select HAVE_AT91_LOWLEVEL_INIT
>  	select HAVE_NAND_ATMEL_BUSWIDTH_16
>  	help
>  	  Say y here if you are using Atmel's AT91SAM9263-EK Evaluation board
> @@ -350,7 +359,7 @@ config MACH_MMCCPU
>  
>  config MACH_PM9263
>  	bool "Ronetix PM9263"
> -	select MACH_HAS_LOWLEVEL_INIT
> +	select HAVE_AT91_LOWLEVEL_INIT
>  	help
>  	  Say y here if you are using the Ronetix PM9263 Board
>  
> @@ -364,7 +373,7 @@ config MACH_TNY_A9263
>  
>  config MACH_USB_A9263
>  	bool "CALAO USB-A9263"
> -	select MACH_HAS_LOWLEVEL_INIT
> +	select HAVE_AT91_LOWLEVEL_INIT
>  	help
>  	  Select this if you are using a Calao Systems USB-A9263.
>  	  <http://www.calao-systems.com>
> @@ -508,7 +517,7 @@ endif
>  
>  config AT91_BOOTSTRAP
>  	bool "at91 bootstrap"
> -	depends on MACH_HAS_LOWLEVEL_INIT
> +	depends on HAVE_AT91_LOWLEVEL_INIT
>  	select BOOTSTRAP
>  
>  endif
> diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
> index 634b160..b94424e 100644
> --- a/arch/arm/mach-at91/Makefile
> +++ b/arch/arm/mach-at91/Makefile
> @@ -2,11 +2,15 @@ obj-y += setup.o clock.o gpio.o
>  obj-$(CONFIG_CMD_AT91_BOOT_TEST) += boot_test_cmd.o
>  
>  obj-$(CONFIG_AT91_BOOTSTRAP) += bootstrap.o
> -lowlevel_init-y = at91sam926x_lowlevel_init.o
> +lowlevel_init-$(CONFIG_ARCH_AT91SAM9260) = at91sam926x_lowlevel_init.o
> +lowlevel_init-$(CONFIG_ARCH_AT91SAM9261) = at91sam926x_lowlevel_init.o
> +lowlevel_init-$(CONFIG_ARCH_AT91SAM9263) = at91sam926x_lowlevel_init.o
> +lowlevel_init-$(CONFIG_ARCH_AT91SAM9G10) = at91sam926x_lowlevel_init.o
> +lowlevel_init-$(CONFIG_ARCH_AT91SAM9G20) = at91sam926x_lowlevel_init.o
>  lowlevel_init-$(CONFIG_ARCH_AT91RM9200) = at91rm9200_lowlevel_init.o
> -obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +obj-y += $(lowlevel_init-y)
>  
> -pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
> +pbl-y += $(lowlevel_init-y)
>  
>  obj-$(CONFIG_AT91SAM9_RESET) += at91sam9_reset.o
>  obj-$(CONFIG_AT91SAM9G45_RESET) += at91sam9g45_reset.o
> diff --git a/arch/arm/mach-at91/at91sam926x_lowlevel_init.c b/arch/arm/mach-at91/at91sam926x_lowlevel_init.c
> index 14afbc9..31e9f54 100644
> --- a/arch/arm/mach-at91/at91sam926x_lowlevel_init.c
> +++ b/arch/arm/mach-at91/at91sam926x_lowlevel_init.c
> @@ -46,6 +46,7 @@ static int inline running_in_sram(void)
>  	return addr == 0;
>  }
>  
> +#ifdef CONFIG_HAVE_AT91_LOWLEVEL_INIT
>  void __bare_init at91sam926x_lowlevel_init(void)
>  {
>  	u32 r;
> @@ -191,8 +192,14 @@ void __bare_init at91sam926x_lowlevel_init(void)
>  	at91_pmc_write(AT91_PMC_PCER, 0xffffffff);
>  
>  end:
> -	board_init_lowlevel_return();
> +	barebox_arm_entry(AT91_SDRAM_BASE, at91_get_sdram_size(), 0);
>  }
> +#else
> +static inline void at91sam926x_lowlevel_init(void)
> +{
> +}
> +#endif
> +
>  
>  void __naked __bare_init reset(void)
>  {
> @@ -207,4 +214,6 @@ void __naked __bare_init reset(void)
>  #endif
>  
>  	at91sam926x_lowlevel_init();
> +
> +	barebox_arm_entry(AT91_SDRAM_BASE, at91_get_sdram_size(), 0);
>  }
> -- 
> 1.7.10.4
> 
> 
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