ppc4xx: Add Io64 board support

Board support for the Guntermann & Drunck Io64.

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 384 insertions, 0 deletions

diff --git a/board/gdsys/405ex/io64.c b/board/gdsys/405ex/io64.c
new file mode 100644
index 0000000..a997571
--- /dev/null
+++ b/board/gdsys/405ex/io64.c
@@ -0,0 +1,384 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * based on kilauea.c
+ * by 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/ppc4xx.h>
+#include <asm/ppc405.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/ppc4xx-gpio.h>
+#include <flash.h>
+
+#include <pca9698.h>
+
+#include "405ex.h"
+#include <gdsys_fpga.h>
+
+#include <miiphy.h>
+#include <i2c.h>
+#include <dtt.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define PHYREG_CONTROL				0
+#define PHYREG_PAGE_ADDRESS			22
+#define PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1	16
+#define PHYREG_PG2_COPPER_SPECIFIC_CONTROL_2	26
+#define PHYREG_PG2_MAC_SPECIFIC_STATUS_1	17
+#define PHYREG_PG2_MAC_SPECIFIC_CONTROL		21
+
+#define LATCH0_BASE (CONFIG_SYS_LATCH_BASE)
+#define LATCH1_BASE (CONFIG_SYS_LATCH_BASE + 0x100)
+#define LATCH2_BASE (CONFIG_SYS_LATCH_BASE + 0x200)
+#define LATCH3_BASE (CONFIG_SYS_LATCH_BASE + 0x300)
+
+enum {
+	UNITTYPE_CCD_SWITCH = 1,
+};
+
+enum {
+	HWVER_100 = 0,
+	HWVER_110 = 1,
+};
+
+static inline void blank_string(int size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		putc('\b');
+	for (i = 0; i < size; i++)
+		putc(' ');
+	for (i = 0; i < size; i++)
+		putc('\b');
+}
+
+/*
+ * Board early initialization function
+ */
+int misc_init_r(void)
+{
+	/* startup fans */
+	dtt_init();
+
+#ifdef CONFIG_ENV_IS_IN_FLASH
+	/* Monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      -CONFIG_SYS_MONITOR_LEN,
+		      0xffffffff,
+		      &flash_info[0]);
+#endif
+
+	return 0;
+}
+
+static void print_fpga_info(unsigned dev)
+{
+	ihs_fpga_t *fpga = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(dev);
+	u16 versions = in_le16(&fpga->versions);
+	u16 fpga_version = in_le16(&fpga->fpga_version);
+	u16 fpga_features = in_le16(&fpga->fpga_features);
+	int fpga_state = get_fpga_state(dev);
+
+	unsigned unit_type;
+	unsigned hardware_version;
+	unsigned feature_channels;
+	unsigned feature_expansion;
+
+	printf("FPGA%d: ", dev);
+	if (fpga_state & FPGA_STATE_PLATFORM)
+		printf("(legacy) ");
+
+	if (fpga_state & FPGA_STATE_DONE_FAILED) {
+		printf(" done timed out\n");
+		return;
+	}
+
+	if (fpga_state & FPGA_STATE_REFLECTION_FAILED) {
+		printf(" refelectione test failed\n");
+		return;
+	}
+
+	unit_type = (versions & 0xf000) >> 12;
+	hardware_version = versions & 0x000f;
+	feature_channels = fpga_features & 0x007f;
+	feature_expansion = fpga_features & (1<<15);
+
+	switch (unit_type) {
+	case UNITTYPE_CCD_SWITCH:
+		printf("CCD-Switch");
+		break;
+
+	default:
+		printf("UnitType %d(not supported)", unit_type);
+		break;
+	}
+
+	switch (hardware_version) {
+	case HWVER_100:
+		printf(" HW-Ver 1.00\n");
+		break;
+
+	case HWVER_110:
+		printf(" HW-Ver 1.10\n");
+		break;
+
+	default:
+		printf(" HW-Ver %d(not supported)\n",
+		       hardware_version);
+		break;
+	}
+
+	printf("       FPGA V %d.%02d, features:",
+		fpga_version / 100, fpga_version % 100);
+
+	printf(" %d channel(s)", feature_channels);
+
+	printf(", expansion %ssupported\n", feature_expansion ? "" : "un");
+}
+
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+
+	printf("Board: CATCenter Io64\n");
+
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+
+	return 0;
+}
+
+int configure_gbit_phy(char *bus, unsigned char addr)
+{
+	unsigned short value;
+
+	/* select page 0 */
+	if (miiphy_write(bus, addr, PHYREG_PAGE_ADDRESS, 0x0000))
+		goto err_out;
+	/* switch to powerdown */
+	if (miiphy_read(bus, addr, PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1,
+		&value))
+		goto err_out;
+	if (miiphy_write(bus, addr, PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1,
+		value | 0x0004))
+		goto err_out;
+	/* select page 2 */
+	if (miiphy_write(bus, addr, PHYREG_PAGE_ADDRESS, 0x0002))
+		goto err_out;
+	/* disable SGMII autonegotiation */
+	if (miiphy_write(bus, addr, PHYREG_PG2_MAC_SPECIFIC_CONTROL, 48))
+		goto err_out;
+	/* select page 0 */
+	if (miiphy_write(bus, addr, PHYREG_PAGE_ADDRESS, 0x0000))
+		goto err_out;
+	/* switch from powerdown to normal operation */
+	if (miiphy_read(bus, addr, PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1,
+		&value))
+		goto err_out;
+	if (miiphy_write(bus, addr, PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1,
+		value & ~0x0004))
+		goto err_out;
+	/* reset phy so settings take effect */
+	if (miiphy_write(bus, addr, PHYREG_CONTROL, 0x9140))
+		goto err_out;
+
+	return 0;
+
+err_out:
+	printf("Error writing to the PHY addr=%02x\n", addr);
+	return -1;
+}
+
+int verify_gbit_phy(char *bus, unsigned char addr)
+{
+	unsigned short value;
+
+	/* select page 2 */
+	if (miiphy_write(bus, addr, PHYREG_PAGE_ADDRESS, 0x0002))
+		goto err_out;
+	/* verify SGMII link status */
+	if (miiphy_read(bus, addr, PHYREG_PG2_MAC_SPECIFIC_STATUS_1, &value))
+		goto err_out;
+	if (!(value & (1 << 10)))
+		return -2;
+
+	return 0;
+
+err_out:
+	printf("Error writing to the PHY addr=%02x\n", addr);
+	return -1;
+}
+
+int last_stage_init(void)
+{
+	unsigned int k;
+	unsigned int fpga;
+	ihs_fpga_t *fpga0 = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(0);
+	ihs_fpga_t *fpga1 = (ihs_fpga_t *) CONFIG_SYS_FPGA_BASE(1);
+	int failed = 0;
+	char str_phys[] = "Setup PHYs -";
+	char str_serdes[] = "Start SERDES blocks";
+	char str_channels[] = "Start FPGA channels";
+	char str_locks[] = "Verify SERDES locks";
+	char str_status[] = "Verify PHY status -";
+	char slash[] = "\\|/-\\|/-";
+
+	print_fpga_info(0);
+	print_fpga_info(1);
+
+	/* setup Gbit PHYs */
+	puts("TRANS: ");
+	puts(str_phys);
+	miiphy_register(CONFIG_SYS_GBIT_MII_BUSNAME,
+		bb_miiphy_read, bb_miiphy_write);
+
+	for (k = 0; k < 32; ++k) {
+		configure_gbit_phy(CONFIG_SYS_GBIT_MII_BUSNAME, k);
+		putc('\b');
+		putc(slash[k % 8]);
+	}
+
+	miiphy_register(CONFIG_SYS_GBIT_MII1_BUSNAME,
+		bb_miiphy_read, bb_miiphy_write);
+
+	for (k = 0; k < 32; ++k) {
+		configure_gbit_phy(CONFIG_SYS_GBIT_MII1_BUSNAME, k);
+		putc('\b');
+		putc(slash[k % 8]);
+	}
+	blank_string(strlen(str_phys));
+
+	/* take fpga serdes blocks out of reset */
+	puts(str_serdes);
+	udelay(500000);
+	out_le16(&fpga0->quad_serdes_reset, 0);
+	out_le16(&fpga1->quad_serdes_reset, 0);
+	blank_string(strlen(str_serdes));
+
+	/* take channels out of reset */
+	puts(str_channels);
+	udelay(500000);
+	for (fpga = 0; fpga < 2; ++fpga) {
+		u16 *ch0_config_int = &(fpga ? fpga1 : fpga0)->ch0_config_int;
+		for (k = 0; k < 32; ++k)
+			out_le16(ch0_config_int + 4 * k, 0);
+	}
+	blank_string(strlen(str_channels));
+
+	/* verify channels serdes lock */
+	puts(str_locks);
+	udelay(500000);
+	for (fpga = 0; fpga < 2; ++fpga) {
+		u16 *ch0_status_int = &(fpga ? fpga1 : fpga0)->ch0_status_int;
+		for (k = 0; k < 32; ++k) {
+			u16 status = in_le16(ch0_status_int + 4*k);
+			if (!(status & (1 << 4))) {
+				failed = 1;
+				printf("fpga %d channel %d: no serdes lock\n",
+					fpga, k);
+			}
+			/* reset events */
+			out_le16(ch0_status_int + 4*k, status);
+		}
+	}
+	blank_string(strlen(str_locks));
+
+	/* verify phy status */
+	puts(str_status);
+	for (k = 0; k < 32; ++k) {
+		if (verify_gbit_phy(CONFIG_SYS_GBIT_MII_BUSNAME, k)) {
+			printf("verify baseboard phy %d failed\n", k);
+			failed = 1;
+		}
+		putc('\b');
+		putc(slash[k % 8]);
+	}
+	for (k = 0; k < 32; ++k) {
+		if (verify_gbit_phy(CONFIG_SYS_GBIT_MII1_BUSNAME, k)) {
+			printf("verify extensionboard phy %d failed\n", k);
+			failed = 1;
+		}
+		putc('\b');
+		putc(slash[k % 8]);
+	}
+	blank_string(strlen(str_status));
+
+	printf("Starting 64 channels %s\n", failed ? "failed" : "ok");
+
+	return 0;
+}
+
+void gd405ex_init(void)
+{
+	unsigned int k;
+
+	if (i2c_probe(0x22)) { /* i2c_probe returns 0 on success */
+		for (k = 0; k < CONFIG_SYS_FPGA_COUNT; ++k)
+			gd->fpga_state[k] |= FPGA_STATE_PLATFORM;
+	} else {
+		pca9698_direction_output(0x22, 39, 1);
+	}
+}
+
+void gd405ex_set_fpga_reset(unsigned state)
+{
+	int legacy = get_fpga_state(0) & FPGA_STATE_PLATFORM;
+
+	if (legacy) {
+		if (state) {
+			out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_RESET);
+			out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_RESET);
+		} else {
+			out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_BOOT);
+			out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_BOOT);
+		}
+	} else {
+		pca9698_set_value(0x22, 39, state ? 0 : 1);
+	}
+}
+
+void gd405ex_setup_hw(void)
+{
+	gpio_write_bit(CONFIG_SYS_GPIO_STARTUP_FINISHED_N, 0);
+	gpio_write_bit(CONFIG_SYS_GPIO_STARTUP_FINISHED, 1);
+}
+
+int gd405ex_get_fpga_done(unsigned fpga)
+{
+	int legacy = get_fpga_state(0) & FPGA_STATE_PLATFORM;
+
+	if (legacy)
+		return in_le16((void *)LATCH3_BASE)
+			& CONFIG_SYS_FPGA_DONE(fpga);
+	else
+		return pca9698_get_value(0x22, fpga ? 9 : 8);
+}