linux-kernel - [PATCH] ARM: imx: Initialize SoC ID on i.MX50

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Date:   Sat, 24 Apr 2021 18:21:27 +0200
From:   Jonathan Neuschäfer <j.neuschaefer@....net>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Jonathan Neuschäfer <j.neuschaefer@....net>,
        Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Peng Fan <peng.fan@....com>, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: imx: Initialize SoC ID on i.MX50

As on i.MX51 and i.MX53, initialize the SoC ID based on the SoC
compatible string of the board.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
---
 arch/arm/mach-imx/mach-imx50.c | 7 +++++++
 drivers/soc/imx/soc-imx.c      | 3 +++
 include/soc/imx/cpu.h          | 1 +
 3 files changed, 11 insertions(+)

diff --git a/arch/arm/mach-imx/mach-imx50.c b/arch/arm/mach-imx/mach-imx50.c
index f4da205f57db9..a2d35f9ba474a 100644
--- a/arch/arm/mach-imx/mach-imx50.c
+++ b/arch/arm/mach-imx/mach-imx50.c
@@ -9,6 +9,12 @@
 #include <asm/mach/arch.h>

 #include "common.h"
+#include "hardware.h"
+
+static void __init imx50_init_early(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX50);
+}

 static const char * const imx50_dt_board_compat[] __initconst = {
 	"fsl,imx50",
@@ -16,5 +22,6 @@ static const char * const imx50_dt_board_compat[] __initconst = {
 };

 DT_MACHINE_START(IMX50_DT, "Freescale i.MX50 (Device Tree Support)")
+	.init_early	= imx50_init_early,
 	.dt_compat	= imx50_dt_board_compat,
 MACHINE_END
diff --git a/drivers/soc/imx/soc-imx.c b/drivers/soc/imx/soc-imx.c
index 01bfea1cb64a8..e11d237b883a9 100644
--- a/drivers/soc/imx/soc-imx.c
+++ b/drivers/soc/imx/soc-imx.c
@@ -67,6 +67,9 @@ static int __init imx_soc_device_init(void)
 	case MXC_CPU_MX35:
 		soc_id = "i.MX35";
 		break;
+	case MXC_CPU_MX50:
+		soc_id = "i.MX50";
+		break;
 	case MXC_CPU_MX51:
 		soc_id = "i.MX51";
 		break;
diff --git a/include/soc/imx/cpu.h b/include/soc/imx/cpu.h
index 42d6aeb951fa6..0bf610acafd06 100644
--- a/include/soc/imx/cpu.h
+++ b/include/soc/imx/cpu.h
@@ -9,6 +9,7 @@
 #define MXC_CPU_MX27		27
 #define MXC_CPU_MX31		31
 #define MXC_CPU_MX35		35
+#define MXC_CPU_MX50		50
 #define MXC_CPU_MX51		51
 #define MXC_CPU_MX53		53
 #define MXC_CPU_IMX6SL		0x60
--
2.30.2