u-boot-brain/arch/arm/mach-at91/matrix.c
Wenyou Yang 5906d2aa0c arm: at91/spl: matrix: remove matrix write protection code
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>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-11-30 22:27:54 +01:00

44 lines
1.3 KiB
C

/*
* Copyright (C) 2015 Atmel Corporation
* Wenyou Yang <wenyou.yang@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/sama5_matrix.h>
void matrix_init(void)
{
struct atmel_matrix *h64mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX0;
struct atmel_matrix *h32mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX1;
int i;
/* DDR port 1 ~ poart 7, slave number is: 4 ~ 10 */
for (i = 4; i <= 10; i++) {
writel(0x000f0f0f, &h64mx->ssr[i]);
writel(0x0000ffff, &h64mx->sassr[i]);
writel(0x0000000f, &h64mx->srtsr[i]);
}
/* CS3 */
writel(0x00c0c0c0, &h32mx->ssr[3]);
writel(0xff000000, &h32mx->sassr[3]);
writel(0xff000000, &h32mx->srtsr[3]);
/* NFC SRAM */
writel(0x00010101, &h32mx->ssr[4]);
writel(0x00000001, &h32mx->sassr[4]);
writel(0x00000001, &h32mx->srtsr[4]);
/* Configure Programmable Security peripherals on matrix 64 */
writel(readl(&h64mx->spselr[0]) | 0x00080000, &h64mx->spselr[0]);
writel(readl(&h64mx->spselr[1]) | 0x00180000, &h64mx->spselr[1]);
writel(readl(&h64mx->spselr[2]) | 0x00000008, &h64mx->spselr[2]);
/* 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]);
}