[U-Boot] [PATCH 1/4] ARM: AM33xx: Cleanup dplls data

[Heiko Schocher]

Hello Lokesh,

Am 24.06.2013 15:15, schrieb Lokesh Vutla:
> Locking sequence for all the dplls is same.
> In the current code same sequence is done repeatedly
> for each dpll. Instead have a generic function
> for locking dplls and pass dpll data to that function.
> 
> This is derived from OMAP4 boards.
> 
> Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
> ---
>  arch/arm/cpu/armv7/am33xx/Makefile           |    1 +
>  arch/arm/cpu/armv7/am33xx/clock.c            |  116 ++++++++++++++
>  arch/arm/cpu/armv7/am33xx/clock_am33xx.c     |  222 +++++---------------------
>  arch/arm/cpu/armv7/am33xx/emif4.c            |    4 +
>  arch/arm/include/asm/arch-am33xx/clock.h     |   68 ++++++++
>  arch/arm/include/asm/arch-am33xx/ddr_defs.h  |    2 +
>  arch/arm/include/asm/arch-am33xx/sys_proto.h |    1 +
>  7 files changed, 232 insertions(+), 182 deletions(-)
>  create mode 100644 arch/arm/cpu/armv7/am33xx/clock.c
> 
[...]
> diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c
> new file mode 100644
> index 0000000..a7f1d83
> --- /dev/null
> +++ b/arch/arm/cpu/armv7/am33xx/clock.c
> @@ -0,0 +1,116 @@
[...]
> +static void do_setup_dpll(const struct dpll_regs *dpll_regs,
> +			  const struct dpll_params *params)
> +{

Could we have this function not only static? I posted a patch:

[U-Boot] arm, am335x: make mpu pll config configurable
http://patchwork.ozlabs.org/patch/248509/

which uses mpu_pll_config() for switching mpu pll clock
from board code ... you delete this function later in this patch,
so I think, I can switch to do_setup_pll() ... if this is not
static code ...

[...]
> diff --git a/arch/arm/cpu/armv7/am33xx/clock_am33xx.c b/arch/arm/cpu/armv7/am33xx/clock_am33xx.c
> index 9c4d0b4..e878b25 100644
> --- a/arch/arm/cpu/armv7/am33xx/clock_am33xx.c
> +++ b/arch/arm/cpu/armv7/am33xx/clock_am33xx.c
> @@ -26,56 +26,53 @@
>  #define PRCM_FORCE_WAKEUP	0x2
>  #define PRCM_FUNCTL		0x0
>  
> -#define PRCM_EMIF_CLK_ACTIVITY	BIT(2)
> -#define PRCM_L3_GCLK_ACTIVITY	BIT(4)
> -
> -#define PLL_BYPASS_MODE		0x4
> -#define ST_MN_BYPASS		0x00000100
> -#define ST_DPLL_CLK		0x00000001
> -#define CLK_SEL_MASK		0x7ffff
> -#define CLK_DIV_MASK		0x1f
> -#define CLK_DIV2_MASK		0x7f
> -#define CLK_SEL_SHIFT		0x8
> -#define CLK_MODE_SEL		0x7
> -#define CLK_MODE_MASK		0xfffffff8
> -#define CLK_DIV_SEL		0xFFFFFFE0
>  #define CPGMAC0_IDLE		0x30000
> -#define DPLL_CLKDCOLDO_GATE_CTRL        0x300
> -
>  #define OSC	(V_OSCK/1000000)

and could we move this define then to
arch/arm/include/asm/arch-am33xx/clock.h
too?

Thnaks!

bye,
Heiko
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