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.yang@atmel.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); }