Rockchip rk322x sysreset is much like rk3036 and other Rockchip SoCs, only difference is that the target register address is different.
Signed-off-by: Kever Yang kever.yang@rock-chips.com Reviewed-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---
Changes in v2: None
drivers/sysreset/sysreset_rk322x.c | 45 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 drivers/sysreset/sysreset_rk322x.c
diff --git a/drivers/sysreset/sysreset_rk322x.c b/drivers/sysreset/sysreset_rk322x.c new file mode 100644 index 0000000..5fce79b --- /dev/null +++ b/drivers/sysreset/sysreset_rk322x.c @@ -0,0 +1,45 @@ +/* + * (C) Copyright 2017 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_rk322x.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rk322x_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk322x_cru *cru = rockchip_get_cru(); + + if (IS_ERR(cru)) + return PTR_ERR(cru); + switch (type) { + case SYSRESET_WARM: + writel(0xeca8, &cru->cru_glb_srst_snd_value); + break; + case SYSRESET_COLD: + writel(0xfdb9, &cru->cru_glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops rk322x_sysreset = { + .request = rk322x_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk322x) = { + .name = "rk322x_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk322x_sysreset, +};