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ARM: IMXRT: introduce is_imxrt*() macros and get_cpu_rev()

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We need those macros to instruct drivers on how to behave for SoC specific
quirks, so let's add it as done for other i.MX SoCs.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
This commit is contained in:
Giulio Benetti 2021-05-20 16:10:13 +02:00 • committed by Stefano Babic
parent d7308dbd86
commit 0d90dec182
3 changed files with 19 additions and 0 deletions
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3
arch/arm/include/asm/arch-imx/cpu.h
View file

@ -50,6 +50,8 @@
#define MXC_CPU_IMX8QXP_A0 0x90 /* dummy ID */
#define MXC_CPU_IMX8QM 0x91 /* dummy ID */
#define MXC_CPU_IMX8QXP 0x92 /* dummy ID */
#define MXC_CPU_IMXRT1020 0xB4 /* dummy ID */
#define MXC_CPU_IMXRT1050 0xB6 /* dummy ID */
#define MXC_CPU_MX7ULP 0xE1 /* Temporally hard code */
#define MXC_CPU_VF610 0xF6 /* dummy ID */
@ -57,6 +59,7 @@
#define MXC_SOC_MX7 0x70
#define MXC_SOC_IMX8M 0x80
#define MXC_SOC_IMX8 0x90 /* dummy */
#define MXC_SOC_IMXRT 0xB0 /* dummy */
#define MXC_SOC_MX7ULP 0xE0 /* dummy */
#define CHIP_REV_1_0 0x10

4
arch/arm/include/asm/mach-imx/sys_proto.h
View file

@ -31,6 +31,7 @@ struct bd_info;
#define is_mx7() (is_soc_type(MXC_SOC_MX7))
#define is_imx8m() (is_soc_type(MXC_SOC_IMX8M))
#define is_imx8() (is_soc_type(MXC_SOC_IMX8))
#define is_imxrt() (is_soc_type(MXC_SOC_IMXRT))
#define is_mx6dqp() (is_cpu_type(MXC_CPU_MX6QP) || is_cpu_type(MXC_CPU_MX6DP))
#define is_mx6dq() (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
@ -78,6 +79,9 @@ struct bd_info;
#define is_imx8qxp() (is_cpu_type(MXC_CPU_IMX8QXP))
#define is_imxrt1020() (is_cpu_type(MXC_CPU_IMXRT1020))
#define is_imxrt1050() (is_cpu_type(MXC_CPU_IMXRT1050))
#ifdef CONFIG_MX6
#define IMX6_SRC_GPR10_BMODE BIT(28)
#define IMX6_SRC_GPR10_PERSIST_SECONDARY_BOOT BIT(30)

12
arch/arm/mach-imx/imxrt/soc.c
View file

@ -8,6 +8,7 @@
#include <init.h>
#include <asm/io.h>
#include <asm/armv7_mpu.h>
#include <asm/mach-imx/sys_proto.h>
#include <linux/bitops.h>
int arch_cpu_init(void)
@ -35,3 +36,14 @@ int arch_cpu_init(void)
return 0;
}
u32 get_cpu_rev(void)
{
#if defined(CONFIG_IMXRT1020)
return MXC_CPU_IMXRT1020 << 12;
#elif defined(CONFIG_IMXRT1050)
return MXC_CPU_IMXRT1050 << 12;
#else
#error This IMXRT SoC is not supported
#endif
}