mpq101: initial support for Mercury Computer Systems MPQ101 board

Mpq101 is a RapidIO development board in AMC form factor, featuring MPC8548
processor, 512MB of hardwired DDR2 RAM, 128MB of hardwired NAND flash
memory, real time clock and additional serial EEPROM on i2c bus (enabled).
USB controller is available, but not presently enabled.

Additional board information is available at:
http://www.mc.com/products/boards/ensemble_mpq101_rapidio_powerquicc_iii.aspx

Environment is configured to precede the actual u-boot image so that it's
located at the beginning of flash erase block (made necessary by the recent
changes to the embedded environment handling). This is achieved by means of
custom ld script.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/board/mercury/mpq101/mpq101.c b/board/mercury/mpq101/mpq101.c
new file mode 100644
index 0000000000..e02e87f111
--- /dev/null
+++ b/board/mercury/mpq101/mpq101.c
@@ -0,0 +1,129 @@
+/*
+ * (C) Copyright 2011 Alex Dubov <oakad@yahoo.com>
+ *
+ * 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>
+#include <asm/mmu.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+/*
+ * Initialize Local Bus
+ */
+void local_bus_init(void)
+{
+	fsl_lbc_t *lbc = LBC_BASE_ADDR;
+
+	out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error interrupts */
+	out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error interrupts */
+}
+
+int checkboard(void)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
+
+	puts("Board: Mercury Computer Systems, Inc. MPQ-101 ");
+#ifdef CONFIG_PHYS_64BIT
+	puts("(36-bit addrmap) ");
+#endif
+	putc('\n');
+
+	/*
+	 * Initialize local bus.
+	 */
+	local_bus_init();
+
+	/*
+	 * Hack TSEC 3 and 4 IO voltages.
+	 */
+	out_be32(&gur->tsec34ioovcr, 0xe7e0); /*  1110 0111 1110 0xxx */
+
+	out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
+	out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
+	return 0;
+}
+
+phys_size_t fixed_sdram(void)
+{
+	ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
+	const char *p_mode = getenv("perf_mode");
+
+	puts("Initializing....");
+
+	out_be32(&ddr->cs0_bnds, CONFIG_SYS_DDR_CS0_BNDS);
+	out_be32(&ddr->cs0_config, CONFIG_SYS_DDR_CS0_CONFIG);
+
+	out_be32(&ddr->timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
+	out_be32(&ddr->timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
+
+	if (p_mode && !strcmp("performance", p_mode)) {
+		out_be32(&ddr->timing_cfg_1, CONFIG_SYS_DDR_TIMING_1_PERF);
+		out_be32(&ddr->timing_cfg_2, CONFIG_SYS_DDR_TIMING_2_PERF);
+		out_be32(&ddr->sdram_mode, CONFIG_SYS_DDR_MODE_1_PERF);
+		out_be32(&ddr->sdram_mode_2, CONFIG_SYS_DDR_MODE_2_PERF);
+		out_be32(&ddr->sdram_interval, CONFIG_SYS_DDR_INTERVAL_PERF);
+	} else {
+		out_be32(&ddr->timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
+		out_be32(&ddr->timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
+		out_be32(&ddr->sdram_mode, CONFIG_SYS_DDR_MODE_1);
+		out_be32(&ddr->sdram_mode_2, CONFIG_SYS_DDR_MODE_2);
+		out_be32(&ddr->sdram_interval, CONFIG_SYS_DDR_INTERVAL);
+	}
+
+	out_be32(&ddr->sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CTRL);
+	out_be32(&ddr->sdram_cfg_2, CONFIG_SYS_DDR_CONTROL2);
+
+	asm("sync;isync");
+	udelay(500);
+
+	out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
+	asm("sync; isync");
+	udelay(500);
+
+	return ((phys_size_t)1) << CONFIG_SYS_SDRAM_SIZE_LOG;
+}
+
+void pci_init_board(void)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+	/* PCI is disabled */
+	out_be32(&gur->devdisr, in_be32(&gur->devdisr)
+				| MPC85xx_DEVDISR_PCI1
+				| MPC85xx_DEVDISR_PCI2
+				| MPC85xx_DEVDISR_PCIE);
+}
+
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+}
+
+#endif