diff options
Diffstat (limited to 'plat/imx/imx8m/imx8mq/imx8mq_misc.c')
-rw-r--r-- | plat/imx/imx8m/imx8mq/imx8mq_misc.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/plat/imx/imx8m/imx8mq/imx8mq_misc.c b/plat/imx/imx8m/imx8mq/imx8mq_misc.c new file mode 100644 index 00000000..17213660 --- /dev/null +++ b/plat/imx/imx8m/imx8mq/imx8mq_misc.c @@ -0,0 +1,33 @@ +/* + * Copyright 2017-2020 NXP + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <common/runtime_svc.h> +#include <lib/mmio.h> +#include <platform_def.h> +#include <imx_sip_svc.h> + +int imx_src_handler(uint32_t smc_fid, u_register_t x1, u_register_t x2, + u_register_t x3) +{ + uint32_t val; + + switch(x1) { + case IMX_SIP_SRC_M4_START: + val = mmio_read_32(IMX_SRC_BASE + SRC_M4RCR); + val &= ~SRC_SCR_M4C_NON_SCLR_RST_MASK; + val |= SRC_SCR_M4_ENABLE_MASK; + mmio_write_32(IMX_SRC_BASE + SRC_M4RCR, val); + break; + case IMX_SIP_SRC_M4_STARTED: + val = mmio_read_32(IMX_SRC_BASE + SRC_M4RCR); + return !(val & SRC_SCR_M4C_NON_SCLR_RST_MASK); + default: + return SMC_UNK; + + }; + + return 0; +} |