aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c')
-rw-r--r--roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c b/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c
new file mode 100644
index 00000000..7d611de9
--- /dev/null
+++ b/roms/u-boot/arch/m68k/cpu/mcf5227x/cpu.c
@@ -0,0 +1,62 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+
+#include <asm/immap.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ rcm_t *rcm = (rcm_t *) (MMAP_RCM);
+ udelay(1000);
+ setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
+
+ /* we don't return! */
+ return 0;
+};
+
+int checkcpu(void)
+{
+ ccm_t *ccm = (ccm_t *) MMAP_CCM;
+ u16 msk;
+ u16 id = 0;
+ u8 ver;
+
+ puts("CPU: ");
+ msk = (in_be16(&ccm->cir) >> 6);
+ ver = (in_be16(&ccm->cir) & 0x003f);
+ switch (msk) {
+ case 0x6c:
+ id = 52277;
+ break;
+ }
+
+ if (id) {
+ char buf1[32], buf2[32], buf3[32];
+
+ printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
+ ver);
+ printf(" CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n",
+ strmhz(buf1, gd->cpu_clk),
+ strmhz(buf2, gd->bus_clk),
+ strmhz(buf3, gd->arch.flb_clk));
+ printf(" INP CLK %s MHz VCO CLK %s MHz\n",
+ strmhz(buf1, gd->arch.inp_clk),
+ strmhz(buf2, gd->arch.vco_clk));
+ }
+
+ return 0;
+}