u-boot/arch/mips/mach-ath79/reset.c
Wills Wang 1d3d0f1f1c mips: add base support for QCA/Atheros ath79 SOCs
This patch add some common code for QCA/Atheros ath79 SOCs such as
DDR tuning, chip reset and CPU detection.

Signed-off-by: Wills Wang <wills.wang@live.com>
2016-05-21 01:25:50 +02:00

71 lines
1.6 KiB
C

/*
* Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/addrspace.h>
#include <asm/types.h>
#include <mach/ath79.h>
#include <mach/ar71xx_regs.h>
void _machine_restart(void)
{
void __iomem *base;
u32 reg = 0;
base = map_physmem(AR71XX_RESET_BASE, AR71XX_RESET_SIZE,
MAP_NOCACHE);
if (soc_is_ar71xx())
reg = AR71XX_RESET_REG_RESET_MODULE;
else if (soc_is_ar724x())
reg = AR724X_RESET_REG_RESET_MODULE;
else if (soc_is_ar913x())
reg = AR913X_RESET_REG_RESET_MODULE;
else if (soc_is_ar933x())
reg = AR933X_RESET_REG_RESET_MODULE;
else if (soc_is_ar934x())
reg = AR934X_RESET_REG_RESET_MODULE;
else if (soc_is_qca953x())
reg = QCA953X_RESET_REG_RESET_MODULE;
else if (soc_is_qca955x())
reg = QCA955X_RESET_REG_RESET_MODULE;
else if (soc_is_qca956x())
reg = QCA956X_RESET_REG_RESET_MODULE;
else
puts("Reset register not defined for this SOC\n");
if (reg)
setbits_be32(base + reg, AR71XX_RESET_FULL_CHIP);
while (1)
/* NOP */;
}
u32 get_bootstrap(void)
{
const void __iomem *base;
u32 reg = 0;
base = map_physmem(AR71XX_RESET_BASE, AR71XX_RESET_SIZE,
MAP_NOCACHE);
if (soc_is_ar933x())
reg = AR933X_RESET_REG_BOOTSTRAP;
else if (soc_is_ar934x())
reg = AR934X_RESET_REG_BOOTSTRAP;
else if (soc_is_qca953x())
reg = QCA953X_RESET_REG_BOOTSTRAP;
else if (soc_is_qca955x())
reg = QCA955X_RESET_REG_BOOTSTRAP;
else if (soc_is_qca956x())
reg = QCA956X_RESET_REG_BOOTSTRAP;
else
puts("Bootstrap register not defined for this SOC\n");
if (reg)
return readl(base + reg);
return 0;
}