// SPDX-License-Identifier: GPL-2.0
#include <linux/err.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include "hardware.h"
#include "common.h"
unsigned int __mxc_cpu_type;
static unsigned int imx_soc_revision;
void mxc_set_cpu_type(unsigned int type)
{
__mxc_cpu_type = type;
}
void imx_set_soc_revision(unsigned int rev)
{
imx_soc_revision = rev;
}
unsigned int imx_get_soc_revision(void )
{
return imx_soc_revision;
}
void imx_print_silicon_rev(const char *cpu, int srev)
{
if (srev == IMX_CHIP_REVISION_UNKNOWN)
pr_info("CPU identified as %s, unknown revision\n" , cpu);
else
pr_info("CPU identified as %s, silicon rev %d.%d\n" ,
cpu, (srev >> 4 ) & 0 xf, srev & 0 xf);
}
void __init imx_set_aips(void __iomem *base)
{
unsigned int reg;
/*
* Set all MPROTx to be non - bufferable , trusted for R / W ,
* not forced to user - mode .
*/
imx_writel(0 x77777777, base + 0 x0);
imx_writel(0 x77777777, base + 0 x4);
/*
* Set all OPACRx to be non - bufferable , to not require
* supervisor privilege level for access , allow for
* write access and untrusted master access .
*/
imx_writel(0 x0, base + 0 x40);
imx_writel(0 x0, base + 0 x44);
imx_writel(0 x0, base + 0 x48);
imx_writel(0 x0, base + 0 x4C);
reg = imx_readl(base + 0 x50) & 0 x00FFFFFF;
imx_writel(reg, base + 0 x50);
}
void __init imx_aips_allow_unprivileged_access(
const char *compat)
{
void __iomem *aips_base_addr;
struct device_node *np;
for_each_compatible_node(np, NULL, compat) {
aips_base_addr = of_iomap(np, 0 );
WARN_ON(!aips_base_addr);
imx_set_aips(aips_base_addr);
}
}
Messung V0.5 in Prozent C=96 H=100 G=97
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-29)
¤
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