diff options
Diffstat (limited to 'arch/arm/mach-omap2/prm33xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/prm33xx.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c index d5141669c28d..505d685d6792 100644 --- a/arch/arm/mach-omap2/prm33xx.c +++ b/arch/arm/mach-omap2/prm33xx.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * AM33XX PRM functions * - * Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/ - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/ */ #include <linux/kernel.h> @@ -18,15 +10,12 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/io.h> +#include <linux/reboot.h> #include "powerdomain.h" #include "prm33xx.h" #include "prm-regbits-33xx.h" -#define AM33XX_PRM_RSTCTRL_OFFSET 0x0000 - -#define AM33XX_RST_GLOBAL_WARM_SW_MASK (1 << 0) - /* Read a register in a PRM instance */ static u32 am33xx_prm_read_reg(s16 inst, u16 idx) { @@ -330,10 +319,19 @@ static int am33xx_check_vcvp(void) * * Immediately reboots the device through warm reset. */ -static void am33xx_prm_global_warm_sw_reset(void) +static void am33xx_prm_global_sw_reset(void) { - am33xx_prm_rmw_reg_bits(AM33XX_RST_GLOBAL_WARM_SW_MASK, - AM33XX_RST_GLOBAL_WARM_SW_MASK, + /* + * Historically AM33xx performed warm reset for all requested reboot_mode. + * Keep this behaviour unchanged for all except newly added REBOOT_COLD. + */ + u32 mask = AM33XX_RST_GLOBAL_WARM_SW_MASK; + + if (prm_reboot_mode == REBOOT_COLD) + mask = AM33XX_RST_GLOBAL_COLD_SW_MASK; + + am33xx_prm_rmw_reg_bits(mask, + mask, AM33XX_PRM_DEVICE_MOD, AM33XX_PRM_RSTCTRL_OFFSET); @@ -394,7 +392,7 @@ static struct prm_ll_data am33xx_prm_ll_data = { .assert_hardreset = am33xx_prm_assert_hardreset, .deassert_hardreset = am33xx_prm_deassert_hardreset, .is_hardreset_asserted = am33xx_prm_is_hardreset_asserted, - .reset_system = am33xx_prm_global_warm_sw_reset, + .reset_system = am33xx_prm_global_sw_reset, }; int __init am33xx_prm_init(const struct omap_prcm_init_data *data) |