diff options
Diffstat (limited to 'drivers/sysreset/sysreset_rk3288.c')
-rw-r--r-- | drivers/sysreset/sysreset_rk3288.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/sysreset/sysreset_rk3288.c b/drivers/sysreset/sysreset_rk3288.c new file mode 100644 index 0000000000..0aad1c2160 --- /dev/null +++ b/drivers/sysreset/sysreset_rk3288.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_rk3288.h> +#include <asm/arch/hardware.h> +#include <linux/err.h> + +int rk3288_sysreset_request(struct udevice *dev, enum sysreset_t type) +{ + struct rk3288_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 rk3288_sysreset = { + .request = rk3288_sysreset_request, +}; + +U_BOOT_DRIVER(sysreset_rk3288) = { + .name = "rk3288_sysreset", + .id = UCLASS_SYSRESET, + .ops = &rk3288_sysreset, +}; |