u-boot-brain/arch/arm/mach-nexell/reset.c
Stefan Bosch 95e9a8e2cb arm: add mach-nexell (all files except header files)
Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- SPL not supported yet --> no spl-directory in arch/arm/mach-nexell.
  Appropriate line in Makefile removed.
- clock.c: 'section(".data")' added to declaration of clk_periphs[] and
  core_hz.
- Kconfig: Changes to have a structure like in mach-bcm283x/Kconfig,
  e.g. "config ..." entries moved from other Kconfig.
- timer.c: 'section(".data")' added to declaration of timestamp and
  lastdec.
- arch/arm/mach-nexell/serial.c removed because this is for the UARTs
  of the S5P6818 SoC which is not supported yet. S5P4418 UARTs are
  different, here the (existing) PL011-code is used.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
  possible (and similar).

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
2020-07-29 08:43:40 -04:00

34 lines
855 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Nexell
* Youngbok, Park <park@nexell.co.kr>
*/
/*
*FIXME : Not support device tree & reset control driver.
* will remove after support device tree & reset control driver.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/reset.h>
struct nx_rstcon_registerset {
u32 regrst[(NUMBER_OF_RESET_MODULE_PIN + 31) >> 5];
};
static struct nx_rstcon_registerset *nx_rstcon =
(struct nx_rstcon_registerset *)PHY_BASEADDR_RSTCON;
void nx_rstcon_setrst(u32 rstindex, enum rstcon status)
{
u32 regnum, bitpos, curstat;
regnum = rstindex >> 5;
curstat = (u32)readl(&nx_rstcon->regrst[regnum]);
bitpos = rstindex & 0x1f;
curstat &= ~(1UL << bitpos);
curstat |= (status & 0x01) << bitpos;
writel(curstat, &nx_rstcon->regrst[regnum]);
}