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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __MACH_IMX8MQ_H
#define __MACH_IMX8MQ_H
#include <io.h>
#include <mach/generic.h>
#include <mach/imx8mq-regs.h>
#include <mach/imx8mm-regs.h>
#include <mach/imx8mn-regs.h>
#include <mach/imx8mp-regs.h>
#include <mach/revision.h>
#include <linux/bitfield.h>
#define IMX8MQ_ROM_VERSION_A0 0x800
#define IMX8MQ_ROM_VERSION_B0 0x83C
#define IMX8MQ_OCOTP_VERSION_B1 0x40
#define IMX8MQ_OCOTP_VERSION_B1_MAGIC 0xff0055aa
#define MX8MQ_ANATOP_DIGPROG 0x6c
#define MX8MM_ANATOP_DIGPROG 0x800
#define MX8MN_ANATOP_DIGPROG 0x800
#define MX8MP_ANATOP_DIGPROG 0x800
#define DIGPROG_MAJOR GENMASK(23, 8)
#define DIGPROG_MINOR GENMASK(7, 0)
#define IMX8M_CPUTYPE_IMX8MQ 0x8240
#define IMX8M_CPUTYPE_IMX8MM 0x8241
#define IMX8M_CPUTYPE_IMX8MN 0x8242
#define IMX8M_CPUTYPE_IMX8MP 0x8243
static inline int imx8mm_cpu_revision(void)
{
void __iomem *anatop = IOMEM(MX8MM_ANATOP_BASE_ADDR);
uint32_t revision = FIELD_GET(DIGPROG_MINOR,
readl(anatop + MX8MM_ANATOP_DIGPROG));
return revision;
}
static inline int imx8mn_cpu_revision(void)
{
void __iomem *anatop = IOMEM(MX8MN_ANATOP_BASE_ADDR);
uint32_t revision = FIELD_GET(DIGPROG_MINOR,
readl(anatop + MX8MN_ANATOP_DIGPROG));
return revision;
}
static inline int imx8mp_cpu_revision(void)
{
void __iomem *anatop = IOMEM(MX8MP_ANATOP_BASE_ADDR);
uint32_t revision = FIELD_GET(DIGPROG_MINOR,
readl(anatop + MX8MP_ANATOP_DIGPROG));
return revision;
}
static inline int imx8mq_cpu_revision(void)
{
void __iomem *anatop = IOMEM(MX8MQ_ANATOP_BASE_ADDR);
void __iomem *ocotp = IOMEM(MX8MQ_OCOTP_BASE_ADDR);
uint32_t revision = FIELD_GET(DIGPROG_MINOR,
readl(anatop + MX8MQ_ANATOP_DIGPROG));
uint32_t rom_version;
if (revision != IMX_CHIP_REV_1_0)
return revision;
/*
* For B1 chip we need to check OCOTP
*/
if (readl(ocotp + IMX8MQ_OCOTP_VERSION_B1) ==
IMX8MQ_OCOTP_VERSION_B1_MAGIC)
return IMX_CHIP_REV_2_1;
/*
* For B0 chip, the DIGPROG is not updated, still TO1.0.
* we have to check ROM version further
*/
rom_version = readb(IOMEM(IMX8MQ_ROM_VERSION_A0));
if (rom_version != IMX_CHIP_REV_1_0) {
rom_version = readb(IOMEM(IMX8MQ_ROM_VERSION_B0));
if (rom_version >= IMX_CHIP_REV_2_0)
revision = IMX_CHIP_REV_2_0;
}
return revision;
}
u64 imx8m_uid(void);
#endif /* __MACH_IMX8_H */
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