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Date:   Wed, 29 Nov 2017 21:48:17 +0100
From:   Alexander Sverdlin <alexander.sverdlin@...il.com>
To:     Lukasz Majewski <lukma@...x.de>, Arnd Bergmann <arnd@...db.de>,
        arndbergmann@...il.com,
        Hartley Sweeten <hsweeten@...ionengravers.com>
Cc:     Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Olof Johansson <olof@...om.net>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v2 6/6] ARM: ep93xx: ts72xx: Add support for BK3 board -
 ts72xx derivative

Hello Lukasz,

some nitpicking below...

On 21/11/17 15:32, Lukasz Majewski wrote:
> The BK3 board is a derivative of the ts72xx reference design.
> 
> Signed-off-by: Lukasz Majewski <lukma@...x.de>
> ---
> Changes for v2:
> - Place bk3 support code to the ts72xx.c file
> ---
>  arch/arm/mach-ep93xx/Kconfig  |  7 +++++
>  arch/arm/mach-ep93xx/ts72xx.c | 64 +++++++++++++++++++++++++++++++++++++++++++
>  arch/arm/mach-ep93xx/ts72xx.h |  5 ++++
>  arch/arm/tools/mach-types     |  1 +
>  4 files changed, 77 insertions(+)
> 
> diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig
> index 61a75ca3684e..c095236d7ff8 100644
> --- a/arch/arm/mach-ep93xx/Kconfig
> +++ b/arch/arm/mach-ep93xx/Kconfig
> @@ -21,6 +21,13 @@ config MACH_ADSSPHERE
>  	  Say 'Y' here if you want your kernel to support the ADS
>  	  Sphere board.
>  
> +config MACH_BK3
> +	bool "Support Liebherr BK3.1"
> +	select MACH_TS72XX
> +	help
> +	  Say 'Y' here if you want your kernel to support the
> +	  Liebherr controller BK3.1.
> +
>  config MACH_EDB93XX
>  	bool
>  
> diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
> index 2e8fcc6e87b6..0de19b136ad0 100644
> --- a/arch/arm/mach-ep93xx/ts72xx.c
> +++ b/arch/arm/mach-ep93xx/ts72xx.c
> @@ -18,8 +18,10 @@
>  #include <linux/io.h>
>  #include <linux/mtd/rawnand.h>
>  #include <linux/mtd/partitions.h>
> +#include <linux/amba/bus.h>
>  
>  #include <mach/hardware.h>
> +#include <mach/irqs.h>
>  
>  #include <asm/mach-types.h>
>  #include <asm/mach/map.h>
> @@ -261,3 +263,65 @@ MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
>  	.init_late	= ep93xx_init_late,
>  	.restart	= ep93xx_restart,
>  MACHINE_END
> +
> +/*************************************************************************
> + * BK3 support code
> + *************************************************************************/
> +static struct mtd_partition bk3_nand_parts[] = {
> +	{
> +		.name		= "System",
> +		.offset	= 0x00000000,

I see the above and below lines as unaligned

> +		.size		= 0x01e00000,
> +	}, {
> +		.name		= "Data",
> +		.offset	= 0x01e00000,

same here

> +		.size		= 0x05f20000
> +	}, {
> +		.name		= "RedBoot",
> +		.offset	= 0x07d20000,

same here

> +		.size		= 0x002e0000,
> +		.mask_flags	= MTD_WRITEABLE,	/* force RO */
> +	},
> +};
> +
> +static AMBA_APB_DEVICE(i2s1, "apb:i2s", 1, EP93XX_I2S_PHYS_BASE,
> +		       { IRQ_EP93XX_SAI }, NULL);
> +
> +static struct map_desc bk3_io_desc[] __initdata = {
> +	{
> +		.virtual	= BK3_CPLDVER_VIRT_BASE,
> +		.pfn		= __phys_to_pfn(BK3_CPLDVER_PHYS_BASE),
> +		.length	= BK3_CPLDVER_SIZE,

same here

> +		.type		= MT_DEVICE,
> +	}
> +};
> +
> +static void __init bk3_map_io(void)
> +{
> +	ts72xx_common_map_io();
> +	iotable_init(bk3_io_desc, ARRAY_SIZE(bk3_io_desc));
> +}
> +
> +static void __init bk3_init_machine(void)
> +{
> +	ep93xx_init_devices();
> +
> +	ts72xx_register_flash(bk3_nand_parts, ARRAY_SIZE(bk3_nand_parts),
> +			      EP93XX_CS6_PHYS_BASE);
> +
> +	platform_device_register(&ts72xx_wdt_device);
> +	ep93xx_register_eth(&ts72xx_eth_data, 1);
> +
> +	amba_device_register(&i2s1_device, &iomem_resource);
> +}
> +
> +MACHINE_START(BK3, "Liebherr controller BK3.1")
> +	/* Maintainer: Lukasz Majewski <lukma@...x.de> */

Don't you want to add an entry to the MAINTAINERS file instead?
Then get_maintainer.pl would be able to suggest your email.

> +	.atag_offset	= 0x100,
> +	.map_io	= bk3_map_io,

again, inconsistent alignment...

> +	.init_irq	= ep93xx_init_irq,
> +	.init_time	= ep93xx_timer_init,
> +	.init_machine	= bk3_init_machine,
> +	.init_late	= ep93xx_init_late,
> +	.restart	= ep93xx_restart,
> +MACHINE_END
> diff --git a/arch/arm/mach-ep93xx/ts72xx.h b/arch/arm/mach-ep93xx/ts72xx.h
> index d9ff04db3221..d3165bb9ee78 100644
> --- a/arch/arm/mach-ep93xx/ts72xx.h
> +++ b/arch/arm/mach-ep93xx/ts72xx.h
> @@ -45,6 +45,11 @@
>  #define TS72XX_WDT_CONTROL_PHYS_BASE	0x23800000
>  #define TS72XX_WDT_FEED_PHYS_BASE	0x23c00000
>  
> +/* BK3 specific defines */
> +#define BK3_CPLDVER_PHYS_BASE		0x23400000
> +#define BK3_CPLDVER_VIRT_BASE		0xfebfd000
> +#define BK3_CPLDVER_SIZE		0x00001000
> +
>  #ifndef __ASSEMBLY__
>  
>  static inline int ts72xx_model(void)
> diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types
> index a9313b66f770..4eac94c1eb6f 100644
> --- a/arch/arm/tools/mach-types
> +++ b/arch/arm/tools/mach-types
> @@ -345,6 +345,7 @@ mxlads			MACH_MXLADS		MXLADS			1851
>  linkstation_mini	MACH_LINKSTATION_MINI	LINKSTATION_MINI	1858
>  afeb9260		MACH_AFEB9260		AFEB9260		1859
>  imx27ipcam		MACH_IMX27IPCAM		IMX27IPCAM		1871
> +bk3			MACH_BK3		BK3			1880
>  rd88f6183ap_ge		MACH_RD88F6183AP_GE	RD88F6183AP_GE		1894
>  realview_pba8		MACH_REALVIEW_PBA8	REALVIEW_PBA8		1897
>  realview_pbx		MACH_REALVIEW_PBX	REALVIEW_PBX		1901

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