powerpc/p3060qds: Add board related support for P3060QDS platform

The P3060QDS is a Freescale reference board for the six-core P3060 SOC.

P3060QDS Board Overview:
 Memory subsystem:
  - 2G Bytes unbuffered DDR3 SDRAM SO-DIMM(64bit bus)
  - 128M Bytes NOR flash single-chip memory
  - 16M Bytes SPI flash
  - 8K Bytes AT24C64 I2C EEPROM for RCW
 Ethernet:
  - Eight Ethernet controllers (4x1G + 4x1G/2.5G)
  - Three VSC8641 PHYs on board (2xRGMII + 1xMII)
  - Suport multiple Vitesse VSC8234 SGMII Cards in Slot1/2/3
 PCIe: Two PCI Express 2.0 controllers/ports
 USB:  Two USB2.0, USB1(TYPE-A) and USB2(TYPE-AB) on board
 I2C:  Four I2C controllers
 UART: Supports two dUARTs up to 115200 bps for console
 RapidIO:  Two RapidIO, sRIO1 and sRIO2

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 151 insertions, 0 deletions

diff --git a/board/freescale/common/qixis.c b/board/freescale/common/qixis.c
new file mode 100644
index 0000000..6cd7e51
--- /dev/null
+++ b/board/freescale/common/qixis.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2011 Freescale Semiconductor
+ * Author: Shengzhou Liu <Shengzhou.Liu@freescale.com>
+ *
+ * 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 file provides support for the QIXIS of some Freescale reference boards.
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include "qixis.h"
+
+u8 qixis_read(unsigned int reg)
+{
+	void *p = (void *)QIXIS_BASE;
+
+	return in_8(p + reg);
+}
+
+void qixis_write(unsigned int reg, u8 value)
+{
+	void *p = (void *)QIXIS_BASE;
+
+	out_8(p + reg, value);
+}
+
+void qixis_reset(void)
+{
+	QIXIS_WRITE(rst_ctl, 0x83);
+}
+
+void qixis_bank_reset(void)
+{
+	QIXIS_WRITE(rcfg_ctl, 0x20);
+	QIXIS_WRITE(rcfg_ctl, 0x21);
+}
+
+/* Set the boot bank to the power-on default bank0 */
+void clear_altbank(void)
+{
+	u8 reg;
+
+	reg = QIXIS_READ(brdcfg[0]);
+	reg = reg & ~QIXIS_LBMAP_MASK;
+	QIXIS_WRITE(brdcfg[0], reg);
+}
+
+/* Set the boot bank to the alternate bank */
+void set_altbank(void)
+{
+	u8 reg;
+
+	reg = QIXIS_READ(brdcfg[0]);
+	reg = (reg & ~QIXIS_LBMAP_MASK) | QIXIS_LBMAP_ALTBANK;
+	QIXIS_WRITE(brdcfg[0], reg);
+}
+
+#ifdef DEBUG
+static void qixis_dump_regs(void)
+{
+	int i;
+
+	printf("id	= %02x\n", QIXIS_READ(id));
+	printf("arch	= %02x\n", QIXIS_READ(arch));
+	printf("scver	= %02x\n", QIXIS_READ(scver));
+	printf("model	= %02x\n", QIXIS_READ(model));
+	printf("rst_ctl	= %02x\n", QIXIS_READ(rst_ctl));
+	printf("aux	= %02x\n", QIXIS_READ(aux));
+	for (i = 0; i < 16; i++)
+		printf("brdcfg%02d = %02x\n", i, QIXIS_READ(brdcfg[i]));
+	for (i = 0; i < 16; i++)
+		printf("dutcfg%02d = %02x\n", i, QIXIS_READ(dutcfg[i]));
+	printf("sclk	= %02x%02x%02x\n", QIXIS_READ(sclk[0]),
+		QIXIS_READ(sclk[1]), QIXIS_READ(sclk[2]));
+	printf("dclk	= %02x%02x%02x\n", QIXIS_READ(dclk[0]),
+		QIXIS_READ(dclk[1]), QIXIS_READ(dclk[2]));
+	printf("aux     = %02x\n", QIXIS_READ(aux));
+	printf("watch	= %02x\n", QIXIS_READ(watch));
+	printf("ctl_sys	= %02x\n", QIXIS_READ(ctl_sys));
+	printf("rcw_ctl = %02x\n", QIXIS_READ(rcw_ctl));
+	printf("present = %02x\n", QIXIS_READ(present));
+	printf("clk_spd = %02x\n", QIXIS_READ(clk_spd));
+	printf("stat_dut = %02x\n", QIXIS_READ(stat_dut));
+	printf("stat_sys = %02x\n", QIXIS_READ(stat_sys));
+	printf("stat_alrm = %02x\n", QIXIS_READ(stat_alrm));
+	printf("ctl_sys2 = %02x\n", QIXIS_READ(ctl_sys2));
+}
+#endif
+
+int qixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int i;
+
+	if (argc <= 1) {
+		clear_altbank();
+		qixis_reset();
+	} else if (strcmp(argv[1], "altbank") == 0) {
+		set_altbank();
+		qixis_bank_reset();
+	} else if (strcmp(argv[1], "watchdog") == 0) {
+		static char *period[9] = {"2s", "4s", "8s", "16s", "32s",
+					  "1min", "2min", "4min", "8min"};
+		u8 rcfg = QIXIS_READ(rcfg_ctl);
+
+		if (argv[2] == NULL) {
+			printf("qixis watchdog <watchdog_period>\n");
+			return 0;
+		}
+		for (i = 0; i < ARRAY_SIZE(period); i++) {
+			if (strcmp(argv[2], period[i]) == 0) {
+				/* disable watchdog */
+				QIXIS_WRITE(rcfg_ctl, rcfg & ~0x08);
+				QIXIS_WRITE(watch, ((i<<2) - 1));
+				QIXIS_WRITE(rcfg_ctl, rcfg);
+				return 0;
+			}
+		}
+	}
+
+#ifdef DEBUG
+	else if (strcmp(argv[1], "dump") == 0) {
+		qixis_dump_regs();
+		return 0;
+	}
+#endif
+
+	else {
+		printf("Invalid option: %s\n", argv[1]);
+		return 1;
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	qixis_reset, CONFIG_SYS_MAXARGS, 1, qixis_reset_cmd,
+	"Reset the board using the FPGA sequencer",
+	"- hard reset to default bank\n"
+	"qixis_reset altbank - reset to alternate bank\n"
+	"qixis watchdog <watchdog_period> - set the watchdog period\n"
+	"	period: 1s 2s 4s 8s 16s 32s 1min 2min 4min 8min\n"
+#ifdef DEBUG
+	"qixis_reset dump - display the QIXIS registers\n"
+#endif
+	);