On 05.11.15 09:37, Wenyou Yang wrote:
> On processor reset, the matrix write protection is disabled,
> so no need to disable/enable write protection when writing
> the matrix registers.
>
> Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
Reviewed-by: Andreas Bießmann <andreas.de...@googlemail.com>
> ---
>
> Changes in v2: None
>
> arch/arm/mach-at91/matrix.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/arch/arm/mach-at91/matrix.c b/arch/arm/mach-at91/matrix.c
> index cf36386..452a6b9 100644
> --- a/arch/arm/mach-at91/matrix.c
> +++ b/arch/arm/mach-at91/matrix.c
> @@ -15,10 +15,6 @@ void matrix_init(void)
> struct atmel_matrix *h32mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX1;
> int i;
>
> - /* Disable the write protect */
> - writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
> - writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
> -
> /* DDR port 1 ~ poart 7, slave number is: 4 ~ 10 */
> for (i = 4; i <= 10; i++) {
> writel(0x000f0f0f, &h64mx->ssr[i]);
> @@ -44,8 +40,4 @@ void matrix_init(void)
> /* Configure Programmable Security peripherals on matrix 32 */
> writel(readl(&h32mx->spselr[0]) | 0xFFC00000, &h32mx->spselr[0]);
> writel(readl(&h32mx->spselr[1]) | 0x60E3FFFF, &h32mx->spselr[1]);
> -
> - /* Enable the write protect */
> - writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
> - writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
> }
>
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