nios2: convert altera sysid to driver model

Convert altera sysid to driver model with misc uclass.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Chin Liang See <clsee@altera.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

5 files changed, 11 insertions, 58 deletions

diff --git a/arch/nios2/cpu/Makefile b/arch/nios2/cpu/Makefile
index 3fe7847..185ca3c 100644
--- a/arch/nios2/cpu/Makefile
+++ b/arch/nios2/cpu/Makefile
@@ -7,5 +7,5 @@
 
 extra-y	= start.o
 obj-y	= exceptions.o
-obj-y	+= cpu.o interrupts.o sysid.o traps.o
+obj-y	+= cpu.o interrupts.o traps.o
 obj-y	+= fdt.o
diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
index 34eb7bd..d7ff290 100644
--- a/arch/nios2/cpu/cpu.c
+++ b/arch/nios2/cpu/cpu.c
@@ -13,20 +13,11 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
-extern void display_sysid (void);
-#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
-
 #ifdef CONFIG_DISPLAY_CPUINFO
 int print_cpuinfo(void)
 {
-	printf ("CPU   : Nios-II\n");
-#if !defined(CONFIG_SYS_NIOS_SYSID_BASE)
-	printf ("SYSID : <unknown>\n");
-#else
-	display_sysid ();
-#endif
-	return (0);
+	printf("CPU:   Nios-II\n");
+	return 0;
 }
 #endif /* CONFIG_DISPLAY_CPUINFO */
 
diff --git a/arch/nios2/cpu/sysid.c b/arch/nios2/cpu/sysid.c
deleted file mode 100644
index 50819b2..0000000
--- a/arch/nios2/cpu/sysid.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-
-#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
-
-#include <command.h>
-#include <asm/io.h>
-#include <linux/time.h>
-
-typedef volatile struct {
-	unsigned	id;			/* The system build id */
-	unsigned	timestamp;		/* Timestamp */
-} nios_sysid_t;
-
-void display_sysid (void)
-{
-	nios_sysid_t *sysid = (nios_sysid_t *)CONFIG_SYS_NIOS_SYSID_BASE;
-	struct tm t;
-	char asc[32];
-	time_t stamp;
-
-	stamp = readl (&sysid->timestamp);
-	localtime_r (&stamp, &t);
-	asctime_r (&t, asc);
-	printf ("SYSID : %08lx, %s", readl (&sysid->id), asc);
-
-}
-
-int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
-	display_sysid ();
-	return (0);
-}
-
-U_BOOT_CMD(
-	sysid,	1,	1,	do_sysid,
-	"display Nios-II system id",
-	""
-);
-#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
diff --git a/arch/nios2/dts/3c120_devboard.dts b/arch/nios2/dts/3c120_devboard.dts
index 4a34ce5..a3cfacb 100644
--- a/arch/nios2/dts/3c120_devboard.dts
+++ b/arch/nios2/dts/3c120_devboard.dts
@@ -71,6 +71,7 @@
 				<0x00004cc0 0x08004cc0 0x00000010>,
 				<0x00004ce0 0x08004ce0 0x00000010>,
 				<0x00004d00 0x08004d00 0x00000010>,
+				<0x00004d40 0x08004d40 0x00000008>,
 				<0x00004d50 0x08004d50 0x00000008>,
 				<0x00008000 0x08008000 0x00000020>,
 				<0x00400000 0x08400000 0x00000020>;
@@ -91,6 +92,11 @@
 				clock-frequency = < 125000000 >;
 			};
 
+			sysid: sysid@0x4d40 {
+				compatible = "altr,sysid-1.0";
+				reg = <0x00004d40 0x00000008>;
+			};
+
 			jtag_uart: serial@0x4d50 {
 				compatible = "altr,juart-1.0";
 				reg = <0x00004d50 0x00000008>;
diff --git a/arch/nios2/include/asm/system.h b/arch/nios2/include/asm/system.h
index 6213a16..b158535 100644
--- a/arch/nios2/include/asm/system.h
+++ b/arch/nios2/include/asm/system.h
@@ -45,4 +45,6 @@
 	"callr	%0"					\
 	: : "r" (addr))
 
+void display_sysid(void);
+
 #endif /* __ASM_NIOS2_SYSTEM_H */