On Wed, Jul 25, 2018 at 03:36:09PM +0200, Roland Hieber wrote:
> For now, the clock dividers are only accessible from mx28_mem_init, and
> the old prescaler of 2 is hardcoded in mx23_mem_init. I'm not sure
> if it makes sense to change it at all.
>
> Signed-off-by: Roland Hieber <r.hieber@xxxxxxxxxxxxxx>
> ---
> arch/arm/boards/duckbill/lowlevel.c | 2 ++
> arch/arm/boards/freescale-mx28-evk/lowlevel.c | 2 ++
> arch/arm/boards/karo-tx28/lowlevel.c | 2 ++
> arch/arm/mach-mxs/include/mach/init.h | 6 +++---
> arch/arm/mach-mxs/mem-init.c | 16 ++++++++--------
> 5 files changed, 17 insertions(+), 11 deletions(-)
>
> diff --git a/arch/arm/boards/duckbill/lowlevel.c b/arch/arm/boards/duckbill/lowlevel.c
> index 3adda68d77..393d4e1e12 100644
> --- a/arch/arm/boards/duckbill/lowlevel.c
> +++ b/arch/arm/boards/duckbill/lowlevel.c
> @@ -56,6 +56,8 @@ static noinline void duckbill_init(void)
> pr_debug("initializing SDRAM...\n");
>
> mx28_mem_init(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
> + /* EMI_CLK of 480 / 2 * (18/21) = 205.7 MHz */
> + 2, 21,
> mx28_dram_vals_default);
Instead of adding more parameters to mx28_mem_init() I slighty prefer to
require the boards to call mxs_mem_init_clock() directly instead and
remove it from mx28_mem_init().
Sascha
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