Re: [PATCH v2 2/2] ARM: dove: split legacy and DT setup

[Jason Cooper <jason@lakedaemon.net>]

On Tue, Jan 29, 2013 at 10:23:10PM +0100, Sebastian Hesselbarth wrote:
> In the beginning of DT for Dove it was reasonable to have it close to
> non-DT code. With improved DT support, it became more and more difficult
> to not break non-DT while changing DT code.
> 
> This patch splits up DT board setup and introduces a DOVE_LEGACY config
> to allow to remove legacy code for DT-only kernels.
> 
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
> ---
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Jason Cooper <jason@lakedaemon.net>
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> ---
>  arch/arm/mach-dove/Kconfig  |    5 +++
>  arch/arm/mach-dove/Makefile |    4 +-
>  arch/arm/mach-dove/common.c |   90 -------------------------------------------

Shouldn't the above be added somewhere?

thx,

Jason.

>  arch/arm/mach-dove/common.h |    1 +
>  4 files changed, 9 insertions(+), 91 deletions(-)
> 
> diff --git a/arch/arm/mach-dove/Kconfig b/arch/arm/mach-dove/Kconfig
> index 603c5fd..aedd0ba 100644
> --- a/arch/arm/mach-dove/Kconfig
> +++ b/arch/arm/mach-dove/Kconfig
> @@ -2,8 +2,12 @@ if ARCH_DOVE
>  
>  menu "Marvell Dove Implementations"
>  
> +config DOVE_LEGACY
> +	bool
> +
>  config MACH_DOVE_DB
>  	bool "Marvell DB-MV88AP510 Development Board"
> +	select DOVE_LEGACY
>  	select I2C_BOARDINFO
>  	help
>  	  Say 'Y' here if you want your kernel to support the
> @@ -11,6 +15,7 @@ config MACH_DOVE_DB
>  
>  config MACH_CM_A510
>  	bool "CompuLab CM-A510 Board"
> +	select DOVE_LEGACY
>  	help
>  	  Say 'Y' here if you want your kernel to support the
>  	  CompuLab CM-A510 Board.
> diff --git a/arch/arm/mach-dove/Makefile b/arch/arm/mach-dove/Makefile
> index 5e683ba..3f0a858 100644
> --- a/arch/arm/mach-dove/Makefile
> +++ b/arch/arm/mach-dove/Makefile
> @@ -1,4 +1,6 @@
> -obj-y				+= common.o addr-map.o irq.o mpp.o
> +obj-y				+= common.o addr-map.o irq.o
> +obj-$(CONFIG_DOVE_LEGACY)	+= mpp.o
>  obj-$(CONFIG_PCI)		+= pcie.o
>  obj-$(CONFIG_MACH_DOVE_DB)	+= dove-db-setup.o
> +obj-$(CONFIG_MACH_DOVE_DT)	+= board-dt.o
>  obj-$(CONFIG_MACH_CM_A510)	+= cm-a510.o
> diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
> index be887feea..aea14b4 100644
> --- a/arch/arm/mach-dove/common.c
> +++ b/arch/arm/mach-dove/common.c
> @@ -9,22 +9,17 @@
>   */
>  
>  #include <linux/clk-provider.h>
> -#include <linux/clk/mvebu.h>
>  #include <linux/dma-mapping.h>
>  #include <linux/init.h>
> -#include <linux/of.h>
> -#include <linux/of_platform.h>
>  #include <linux/platform_data/dma-mv_xor.h>
>  #include <linux/platform_data/usb-ehci-orion.h>
>  #include <linux/platform_device.h>
>  #include <asm/hardware/cache-tauros2.h>
> -#include <asm/mach/arch.h>
>  #include <asm/mach/map.h>
>  #include <asm/mach/time.h>
>  #include <mach/bridge-regs.h>
>  #include <mach/pm.h>
>  #include <plat/common.h>
> -#include <plat/irq.h>
>  #include <plat/time.h>
>  #include "common.h"
>  
> @@ -364,88 +359,3 @@ void dove_restart(char mode, const char *cmd)
>  	while (1)
>  		;
>  }
> -
> -#if defined(CONFIG_MACH_DOVE_DT)
> -/*
> - * There are still devices that doesn't even know about DT,
> - * get clock gates here and add a clock lookup.
> - */
> -static void __init dove_legacy_clk_init(void)
> -{
> -	struct device_node *np = of_find_compatible_node(NULL, NULL,
> -					 "marvell,dove-gating-clock");
> -	struct of_phandle_args clkspec;
> -
> -	clkspec.np = np;
> -	clkspec.args_count = 1;
> -
> -	clkspec.args[0] = CLOCK_GATING_BIT_USB0;
> -	orion_clkdev_add(NULL, "orion-ehci.0",
> -			 of_clk_get_from_provider(&clkspec));
> -
> -	clkspec.args[0] = CLOCK_GATING_BIT_USB1;
> -	orion_clkdev_add(NULL, "orion-ehci.1",
> -			 of_clk_get_from_provider(&clkspec));
> -
> -	clkspec.args[0] = CLOCK_GATING_BIT_GBE;
> -	orion_clkdev_add(NULL, "mv643xx_eth_port.0",
> -			 of_clk_get_from_provider(&clkspec));
> -
> -	clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
> -	orion_clkdev_add("0", "pcie",
> -			 of_clk_get_from_provider(&clkspec));
> -
> -	clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
> -	orion_clkdev_add("1", "pcie",
> -			 of_clk_get_from_provider(&clkspec));
> -}
> -
> -static void __init dove_of_clk_init(void)
> -{
> -	mvebu_clocks_init();
> -	dove_legacy_clk_init();
> -}
> -
> -static struct mv643xx_eth_platform_data dove_dt_ge00_data = {
> -	.phy_addr = MV643XX_ETH_PHY_ADDR_DEFAULT,
> -};
> -
> -static void __init dove_dt_init(void)
> -{
> -	pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
> -		(dove_tclk + 499999) / 1000000);
> -
> -#ifdef CONFIG_CACHE_TAUROS2
> -	tauros2_init(0);
> -#endif
> -	dove_setup_cpu_mbus();
> -
> -	/* Setup root of clk tree */
> -	dove_of_clk_init();
> -
> -	/* Internal devices not ported to DT yet */
> -	dove_rtc_init();
> -
> -	dove_ge00_init(&dove_dt_ge00_data);
> -	dove_ehci0_init();
> -	dove_ehci1_init();
> -	dove_pcie_init(1, 1);
> -
> -	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
> -}
> -
> -static const char * const dove_dt_board_compat[] = {
> -	"marvell,dove",
> -	NULL
> -};
> -
> -DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
> -	.map_io		= dove_map_io,
> -	.init_early	= dove_init_early,
> -	.init_irq	= orion_dt_init_irq,
> -	.timer		= &dove_timer,
> -	.init_machine	= dove_dt_init,
> -	.restart	= dove_restart,
> -	.dt_compat	= dove_dt_board_compat,
> -MACHINE_END
> -#endif
> diff --git a/arch/arm/mach-dove/common.h b/arch/arm/mach-dove/common.h
> index 1a23340..d17f760 100644
> --- a/arch/arm/mach-dove/common.h
> +++ b/arch/arm/mach-dove/common.h
> @@ -25,6 +25,7 @@ void dove_init_early(void);
>  void dove_init_irq(void);
>  void dove_setup_cpu_mbus(void);
>  void dove_ge00_init(struct mv643xx_eth_platform_data *eth_data);
> +void dove_rtc_init(void);
>  void dove_sata_init(struct mv_sata_platform_data *sata_data);
>  #ifdef CONFIG_PCI
>  void dove_pcie_init(int init_port0, int init_port1);
> -- 
> 1.7.10.4
>