[PATCH] Add AMCC Acadia (405EZ) eval board support

This patch adds support for the new AMCC Acadia eval board.

Please note that this Acadia/405EZ support is still in a beta stage.
Still lot's of cleanup needed but we need a preliminary release now.

Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 152 insertions, 0 deletions

diff --git a/board/amcc/acadia/acadia.c b/board/amcc/acadia/acadia.c
new file mode 100644
index 0000000..c8aaad2
--- /dev/null
+++ b/board/amcc/acadia/acadia.c
@@ -0,0 +1,152 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+
+extern void board_pll_init_f(void);
+
+/* Some specific Acadia Defines */
+#define CPLD_BASE	0x80000000
+
+void liveoak_gpio_init(void)
+{
+	/*
+	 * GPIO0 setup (select GPIO or alternate function)
+	 */
+       	out32(GPIO0_OSRL, CFG_GPIO0_OSRL);
+       	out32(GPIO0_OSRH, CFG_GPIO0_OSRH);	/* output select */
+       	out32(GPIO0_ISR1L, CFG_GPIO0_ISR1L);
+       	out32(GPIO0_ISR1H, CFG_GPIO0_ISR1H);	/* input select */
+       	out32(GPIO0_TSRL, CFG_GPIO0_TSRL);
+       	out32(GPIO0_TSRH, CFG_GPIO0_TSRH);	/* three-state select */
+       	out32(GPIO0_TCR, CFG_GPIO0_TCR);  /* enable output driver for outputs */
+
+	/*
+	 * Ultra (405EZ) was nice enough to add another GPIO controller
+	 */
+	out32(GPIO1_OSRH, CFG_GPIO1_OSRH);	/* output select */
+	out32(GPIO1_OSRL, CFG_GPIO1_OSRL);
+	out32(GPIO1_ISR1H, CFG_GPIO1_ISR1H);	/* input select */
+	out32(GPIO1_ISR1L, CFG_GPIO1_ISR1L);
+	out32(GPIO1_TSRH, CFG_GPIO1_TSRH);	/* three-state select */
+	out32(GPIO1_TSRL, CFG_GPIO1_TSRL);
+	out32(GPIO1_TCR, CFG_GPIO1_TCR);  /* enable output driver for outputs */
+}
+
+#if 0 /* test-only: not called at all??? */
+void ext_bus_cntlr_init(void)
+{
+#if (defined(EBC_PB4AP) && defined(EBC_PB4CR) && !(CFG_INIT_DCACHE_CS == 4))
+       	mtebc(pb4ap, EBC_PB4AP);
+       	mtebc(pb4cr, EBC_PB4CR);
+#endif
+}
+#endif
+
+int board_early_init_f(void)
+{
+	unsigned int reg;
+
+#if 0 /* test-only */
+	/*
+	 * If CRAM memory and SPI/NAND boot, and if the CRAM memory is
+	 * already initialized by the pre-loader then we can't reinitialize
+	 * CPR registers, GPIO registers and EBC registers as this will
+	 * have the effect of un-initializing CRAM.
+	 */
+	spr_reg = (volatile unsigned long) mfspr(SPRG7);
+	if (spr_reg != LOAK_CRAM) { /* != CRAM */
+		board_pll_init_f();
+		liveoak_gpio_init();
+		ext_bus_cntlr_init();
+
+		mtebc(pb1ap, CFG_EBC_PB1AP);
+		mtebc(pb1cr, CFG_EBC_PB1CR);
+
+		mtebc(pb2ap, CFG_EBC_PB2AP);
+		mtebc(pb2cr, CFG_EBC_PB2CR);
+	}
+#else
+	board_pll_init_f();
+	liveoak_gpio_init();
+/*	ext_bus_cntlr_init(); */
+#endif
+
+#if 0 /* test-only (orig) */
+	/*
+	 * If we boot from NAND Flash, we are running in
+	 * RAM, so disable the EBC_CS0 so that it goes back
+	 * to the NOR Flash.  It will be enabled later
+	 * for the NAND Flash on EBC_CS1
+	 */
+	mfsdr(sdrultra0, reg);
+	mtsdr(sdrultra0, reg & ~SDR_ULTRA0_CSNSEL0);
+#endif
+#if 0 /* test-only */
+	/* configure for NAND */
+	mfsdr(sdrultra0, reg);
+	reg &= ~SDR_ULTRA0_CSN_MASK;
+	reg |= SDR_ULTRA0_CSNSEL0 >> CFG_NAND_CS;
+	mtsdr(sdrultra0, reg & ~SDR_ULTRA0_CSNSEL0);
+#endif
+
+	/* USB Host core needs this bit set */
+	mfsdr(sdrultra1, reg);
+	mtsdr(sdrultra1, reg | SDR_ULTRA1_LEDNENABLE);
+
+	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr(uicer, 0x00000000);	/* disable all ints */
+	mtdcr(uiccr, 0x00000010);
+	mtdcr(uicpr, 0xFE7FFFF0);	/* set int polarities */
+	mtdcr(uictr, 0x00000010);	/* set int trigger levels */
+	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
+
+	return 0;
+}
+
+int misc_init_f(void)
+{
+	/* Set EPLD to take PHY out of reset */
+	out8(CPLD_BASE + 0x05, 0x00);
+	udelay(100000);
+
+	return 0;
+}
+
+/*
+ * Check Board Identity:
+ */
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+
+	printf("Board: Acadia - AMCC PPC405EZ Evaluation Board");
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	putc('\n');
+
+	return (0);
+}