Driver for the sysreset of Rockchip rk3188 socs.
Signed-off-by: Heiko Stuebner heiko@sntech.de --- drivers/sysreset/Makefile | 1 + drivers/sysreset/sysreset_rk3188.c | 47 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 drivers/sysreset/sysreset_rk3188.c
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile index fa75cc52de..30f1bce390 100644 --- a/drivers/sysreset/Makefile +++ b/drivers/sysreset/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_SYSRESET) += sysreset-uclass.o ifndef CONFIG_SPL_BUILD obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o endif +obj-$(CONFIG_ROCKCHIP_RK3188) += sysreset_rk3188.o obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o diff --git a/drivers/sysreset/sysreset_rk3188.c b/drivers/sysreset/sysreset_rk3188.c new file mode 100644 index 0000000000..36ae47600a --- /dev/null +++ b/drivers/sysreset/sysreset_rk3188.c @@ -0,0 +1,47 @@ +/* + * (C) Copyright 2015 Google, Inc + * + * 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_rk3188.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rk3188_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk3188_cru *cru = rockchip_get_cru(); + + if (IS_ERR(cru)) + return PTR_ERR(cru); + switch (type) { + case SYSRESET_WARM: + rk_clrreg(&cru->cru_mode_con, 0xffff); + writel(0xeca8, &cru->cru_glb_srst_snd_value); + break; + case SYSRESET_COLD: + rk_clrreg(&cru->cru_mode_con, 0xffff); + writel(0xfdb9, &cru->cru_glb_srst_fst_value); + break; + default: + return -EPROTONOSUPPORT; + } + + return -EINPROGRESS; +} + +static struct sysreset_ops rk3188_sysreset = { + .request = rk3188_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk3188) = { + .name = "rk3188_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk3188_sysreset, +};