Add rk3328 sysreset driver.
Signed-off-by: William Zhang william.zhang@rock-chips.com Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
drivers/sysreset/Makefile | 1 + drivers/sysreset/sysreset_rk3328.c | 45 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 drivers/sysreset/sysreset_rk3328.c
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile index 37638a8..12cfa79 100644 --- a/drivers/sysreset/Makefile +++ b/drivers/sysreset/Makefile @@ -10,6 +10,7 @@ ifndef CONFIG_SPL_BUILD obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o endif obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o +obj-$(CONFIG_ROCKCHIP_RK3328) += sysreset_rk3328.o obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o obj-$(CONFIG_ARCH_SNAPDRAGON) += sysreset_snapdragon.o diff --git a/drivers/sysreset/sysreset_rk3328.c b/drivers/sysreset/sysreset_rk3328.c new file mode 100644 index 0000000..7b22342 --- /dev/null +++ b/drivers/sysreset/sysreset_rk3328.c @@ -0,0 +1,45 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/arch/cru_rk3328.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> +#include <dm.h> +#include <errno.h> +#include <linux/err.h> +#include <sysreset.h> + +int rk3328_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk3328_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 rk3328_sysreset = { + .request = rk3328_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk3328) = { + .name = "rk3328_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk3328_sysreset, +};