blackfin: Move cpu/blackfin/* to arch/blackfin/cpu/*

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 112 insertions, 0 deletions

diff --git a/arch/blackfin/cpu/cpu.c b/arch/blackfin/cpu/cpu.c
new file mode 100644
index 0000000..2c8fd86
--- /dev/null
+++ b/arch/blackfin/cpu/cpu.c
@@ -0,0 +1,112 @@
+/*
+ * U-boot - cpu.c CPU specific functions
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/cplb.h>
+#include <asm/mach-common/bits/core.h>
+#include <asm/mach-common/bits/ebiu.h>
+#include <asm/mach-common/bits/trace.h>
+
+#include "cpu.h"
+#include "serial.h"
+
+ulong bfin_poweron_retx;
+
+__attribute__ ((__noreturn__))
+void cpu_init_f(ulong bootflag, ulong loaded_from_ldr)
+{
+#ifndef CONFIG_BFIN_BOOTROM_USES_EVT1
+	/* Build a NOP slide over the LDR jump block.  Whee! */
+	char nops[0xC];
+	serial_early_puts("NOP Slide\n");
+	memset(nops, 0x00, sizeof(nops));
+	memcpy((void *)L1_INST_SRAM, nops, sizeof(nops));
+#endif
+
+	if (!loaded_from_ldr) {
+		/* Relocate sections into L1 if the LDR didn't do it -- don't
+		 * check length because the linker script does the size
+		 * checking at build time.
+		 */
+		serial_early_puts("L1 Relocate\n");
+		extern char _stext_l1[], _text_l1_lma[], _text_l1_len[];
+		memcpy(&_stext_l1, &_text_l1_lma, (unsigned long)_text_l1_len);
+		extern char _sdata_l1[], _data_l1_lma[], _data_l1_len[];
+		memcpy(&_sdata_l1, &_data_l1_lma, (unsigned long)_data_l1_len);
+	}
+#if defined(__ADSPBF537__) || defined(__ADSPBF536__) || defined(__ADSPBF534__)
+	/* The BF537 bootrom will reset the EBIU_AMGCTL register on us
+	 * after it has finished loading the LDR.  So configure it again.
+	 */
+	else
+		bfin_write_EBIU_AMGCTL(CONFIG_EBIU_AMGCTL_VAL);
+#endif
+
+	/* Save RETX so we can pass it while booting Linux */
+	bfin_poweron_retx = bootflag;
+
+#ifdef CONFIG_DEBUG_DUMP
+	/* Turn on hardware trace buffer */
+	bfin_write_TBUFCTL(TBUFPWR | TBUFEN);
+#endif
+
+#ifndef CONFIG_PANIC_HANG
+	/* Reset upon a double exception rather than just hanging.
+	 * Do not do bfin_read on SWRST as that will reset status bits.
+	 */
+	bfin_write_SWRST(DOUBLE_FAULT);
+#endif
+
+	serial_early_puts("Board init flash\n");
+	board_init_f(bootflag);
+}
+
+int exception_init(void)
+{
+	bfin_write_EVT3(trap);
+	return 0;
+}
+
+int irq_init(void)
+{
+#ifdef SIC_IMASK0
+	bfin_write_SIC_IMASK0(0);
+	bfin_write_SIC_IMASK1(0);
+# ifdef SIC_IMASK2
+	bfin_write_SIC_IMASK2(0);
+# endif
+#elif defined(SICA_IMASK0)
+	bfin_write_SICA_IMASK0(0);
+	bfin_write_SICA_IMASK1(0);
+#else
+	bfin_write_SIC_IMASK(0);
+#endif
+	bfin_write_EVT2(evt_default);	/* NMI */
+	bfin_write_EVT5(evt_default);	/* hardware error */
+	bfin_write_EVT6(evt_default);	/* core timer */
+	bfin_write_EVT7(evt_default);
+	bfin_write_EVT8(evt_default);
+	bfin_write_EVT9(evt_default);
+	bfin_write_EVT10(evt_default);
+	bfin_write_EVT11(evt_default);
+	bfin_write_EVT12(evt_default);
+	bfin_write_EVT13(evt_default);
+	bfin_write_EVT14(evt_default);
+	bfin_write_EVT15(evt_default);
+	bfin_write_ILAT(0);
+	CSYNC();
+	/* enable hardware error irq */
+	irq_flags = 0x3f;
+	local_irq_enable();
+	return 0;
+}