diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3399/reset_rk3399.c')
-rw-r--r-- | arch/arm/mach-rockchip/rk3399/reset_rk3399.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3399/reset_rk3399.c b/arch/arm/mach-rockchip/rk3399/reset_rk3399.c new file mode 100644 index 0000000..9a55546 --- /dev/null +++ b/arch/arm/mach-rockchip/rk3399/reset_rk3399.c @@ -0,0 +1,45 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <sysreset.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/cru_rk3399.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rk3399_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk3399_cru *cru = rockchip_get_cru(); + + if (IS_ERR(cru)) + return PTR_ERR(cru); + switch (type) { + case SYSRESET_WARM: + writel(0xeca8, &cru->glb_srst_snd_value); + break; + case SYSRESET_COLD: + writel(0xfdb9, &cru->glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops rk3399_sysreset = { + .request = rk3399_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk3399) = { + .name = "rk3399_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk3399_sysreset, +}; |