48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common/debug.h>
|
||
|
|
#include <lib/mmio.h>
|
||
|
|
|
||
|
|
#include <sunxi_mmap.h>
|
||
|
|
#include <sunxi_private.h>
|
||
|
|
|
||
|
|
#ifdef SUNXI_SPC_BASE
|
||
|
|
#define SPC_DECPORT_STA_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0x4)
|
||
|
|
#define SPC_DECPORT_SET_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0x8)
|
||
|
|
#define SPC_DECPORT_CLR_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0xc)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define R_PRCM_SEC_SWITCH_REG 0x1d0
|
||
|
|
#define DMA_SEC_REG 0x20
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Setup the peripherals to be accessible by non-secure world.
|
||
|
|
* This will not work for the Secure Peripherals Controller (SPC) unless
|
||
|
|
* a fuse it burnt (seems to be an erratum), but we do it nevertheless,
|
||
|
|
* to allow booting on boards using secure boot.
|
||
|
|
*/
|
||
|
|
void sunxi_security_setup(void)
|
||
|
|
{
|
||
|
|
#ifdef SUNXI_SPC_BASE
|
||
|
|
int i;
|
||
|
|
|
||
|
|
INFO("Configuring SPC Controller\n");
|
||
|
|
/* SPC setup: set all devices to non-secure */
|
||
|
|
for (i = 0; i < 6; i++)
|
||
|
|
mmio_write_32(SPC_DECPORT_SET_REG(i), 0xff);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* set MBUS clocks, bus clocks (AXI/AHB/APB) and PLLs to non-secure */
|
||
|
|
mmio_write_32(SUNXI_CCU_SEC_SWITCH_REG, 0x7);
|
||
|
|
|
||
|
|
/* set R_PRCM clocks to non-secure */
|
||
|
|
mmio_write_32(SUNXI_R_PRCM_BASE + R_PRCM_SEC_SWITCH_REG, 0x7);
|
||
|
|
|
||
|
|
/* Set all DMA channels (16 max.) to non-secure */
|
||
|
|
mmio_write_32(SUNXI_DMA_BASE + DMA_SEC_REG, 0xffff);
|
||
|
|
}
|