Add support for Korat PPC440EPx board

These patches add support for the PPC440EPx-based "Korat" board to
U-Boot.  They are based primarily on support for the Sequoia board.

Signed-off-by: Larry Johnson <lrj@acm.org>

1 files changed, 761 insertions, 0 deletions

diff --git a/board/korat/korat.c b/board/korat/korat.c
new file mode 100644
index 0000000..7cb9ee1
--- /dev/null
+++ b/board/korat/korat.c
@@ -0,0 +1,761 @@
+/*
+ * (C) Copyright 2007
+ * Larry Johnson, lrj@acm.org
+ *
+ * (C) Copyright 2006
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * (C) Copyright 2006
+ * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
+ * Alain Saurel,	    AMCC/IBM, alain.saurel@fr.ibm.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 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-ppc/io.h>
+#include <i2c.h>
+#include <ppc440.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips    */
+
+ulong flash_get_size(ulong base, int banknum);
+
+int board_early_init_f(void)
+{
+	u32 sdr0_pfc1, sdr0_pfc2;
+	u32 gpio0_ir;
+	u32 reg;
+	int eth;
+
+	mtdcr(ebccfga, xbcfg);
+	mtdcr(ebccfgd, 0xb8400000);
+
+	/*--------------------------------------------------------------------
+	 * Setup the GPIO pins
+	 *
+	 * Korat GPIO usage:
+	 *
+	 *                   Init.
+	 * Pin    Source I/O value Function
+	 * ------ ------ --- ----- ---------------------------------
+	 * GPIO00  Alt1  I/O   x   PerAddr07
+	 * GPIO01  Alt1  I/O   x   PerAddr06
+	 * GPIO02  Alt1  I/O   x   PerAddr05
+	 * GPIO03  GPIO   x    x   GPIO03 to expansion bus connector
+	 * GPIO04  GPIO   x    x   GPIO04 to expansion bus connector
+	 * GPIO05  GPIO   x    x   GPIO05 to expansion bus connector
+	 * GPIO06  Alt1   O    x   PerCS1 (2nd NOR flash)
+	 * GPIO07  Alt1   O    x   PerCS2 (CPLD)
+	 * GPIO08  Alt1   O    x   PerCS3 to expansion bus connector
+	 * GPIO09  Alt1   O    x   PerCS4 to expansion bus connector
+	 * GPIO10  Alt1   O    x   PerCS5 to expansion bus connector
+	 * GPIO11  Alt1   I    x   PerErr
+	 * GPIO12  GPIO   O    0   ATMega !Reset
+	 * GPIO13  GPIO   O    1   SPI Atmega !SS
+	 * GPIO14  GPIO   O    1   Write protect EEPROM #1 (0xA8)
+	 * GPIO15  GPIO   O    0   CPU Run LED !On
+	 * GPIO16  Alt1   O    x   GMC1TxD0
+	 * GPIO17  Alt1   O    x   GMC1TxD1
+	 * GPIO18  Alt1   O    x   GMC1TxD2
+	 * GPIO19  Alt1   O    x   GMC1TxD3
+	 * GPIO20  Alt1   O    x   RejectPkt0
+	 * GPIO21  Alt1   O    x   RejectPkt1
+	 * GPIO22  GPIO   I    x   PGOOD_DDR
+	 * GPIO23  Alt1   O    x   SCPD0
+	 * GPIO24  Alt1   O    x   GMC0TxD2
+	 * GPIO25  Alt1   O    x   GMC0TxD3
+	 * GPIO26  GPIO? I/O   x   IIC0SDA (selected in SDR0_PFC4)
+	 * GPIO27  GPIO   O    0   PHY #0 1000BASE-X
+	 * GPIO28  GPIO   O    0   PHY #1 1000BASE-X
+	 * GPIO29  GPIO   I    x   Test jumper !Present
+	 * GPIO30  GPIO   I    x   SFP module #0 !Present
+	 * GPIO31  GPIO   I    x   SFP module #1 !Present
+	 *
+	 * GPIO32  GPIO   O    1   SFP module #0 Tx !Enable
+	 * GPIO33  GPIO   O    1   SFP module #1 Tx !Enable
+	 * GPIO34  Alt2   I    x   !UART1_CTS
+	 * GPIO35  Alt2   O    x   !UART1_RTS
+	 * GPIO36  Alt1   I    x   !UART0_CTS
+	 * GPIO37  Alt1   O    x   !UART0_RTS
+	 * GPIO38  Alt2   O    x   UART1_Tx
+	 * GPIO39  Alt2   I    x   UART1_Rx
+	 * GPIO40  Alt1   I    x   IRQ0 (Ethernet 0)
+	 * GPIO41  Alt1   I    x   IRQ1 (Ethernet 1)
+	 * GPIO42  Alt1   I    x   IRQ2 (PCI interrupt)
+	 * GPIO43  Alt1   I    x   IRQ3 (System Alert from CPLD)
+	 * GPIO44  xxxx   x    x   (grounded through pulldown)
+	 * GPIO45  GPIO   O    0   PHY #0 Enable
+	 * GPIO46  GPIO   O    0   PHY #1 Enable
+	 * GPIO47  GPIO   I    x   Reset switch !Pressed
+	 * GPIO48  GPIO   I    x   Shutdown switch !Pressed
+	 * GPIO49  xxxx   x    x   (reserved for trace port)
+	 *   .      .     .    .               .
+	 *   .      .     .    .               .
+	 *   .      .     .    .               .
+	 * GPIO63  xxxx   x    x   (reserved for trace port)
+	 *-------------------------------------------------------------------*/
+
+	out_be32((u32 *) GPIO0_OR, 0x00060000);
+	out_be32((u32 *) GPIO1_OR, 0xC0000000);
+
+	out_be32((u32 *) GPIO0_OSRL, 0x54055400);
+	out_be32((u32 *) GPIO0_OSRH, 0x55015000);
+	out_be32((u32 *) GPIO1_OSRL, 0x02180000);
+	out_be32((u32 *) GPIO1_OSRH, 0x00000000);
+
+	out_be32((u32 *) GPIO0_TSRL, 0x54055500);
+	out_be32((u32 *) GPIO0_TSRH, 0x00015000);
+	out_be32((u32 *) GPIO1_TSRL, 0x00000000);
+	out_be32((u32 *) GPIO1_TSRH, 0x00000000);
+
+	out_be32((u32 *) GPIO0_TCR, 0x000FF0D8);
+	out_be32((u32 *) GPIO1_TCR, 0xD6060000);
+
+	out_be32((u32 *) GPIO0_ISR1L, 0x54000100);
+	out_be32((u32 *) GPIO0_ISR1H, 0x00500000);
+	out_be32((u32 *) GPIO1_ISR1L, 0x00405500);
+	out_be32((u32 *) GPIO1_ISR1H, 0x00000000);
+
+	out_be32((u32 *) GPIO0_ISR2L, 0x00000000);
+	out_be32((u32 *) GPIO0_ISR2H, 0x00000000);
+	out_be32((u32 *) GPIO1_ISR2L, 0x04010000);
+	out_be32((u32 *) GPIO1_ISR2H, 0x00000000);
+
+	out_be32((u32 *) GPIO0_ISR3L, 0x00000000);
+	out_be32((u32 *) GPIO0_ISR3H, 0x00000000);
+	out_be32((u32 *) GPIO1_ISR3L, 0x00000000);
+	out_be32((u32 *) GPIO1_ISR3H, 0x00000000);
+
+	/*--------------------------------------------------------------------
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 *-------------------------------------------------------------------*/
+	mtdcr(uic0sr, 0xffffffff);	/* clear all */
+	mtdcr(uic0er, 0x00000000);	/* disable all */
+	mtdcr(uic0cr, 0x00000005);	/* ATI & UIC1 crit are critical */
+	mtdcr(uic0pr, 0xfffff7ff);	/* per ref-board manual */
+	mtdcr(uic0tr, 0x00000000);	/* per ref-board manual */
+	mtdcr(uic0vr, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(uic0sr, 0xffffffff);	/* clear all */
+
+	mtdcr(uic1sr, 0xffffffff);	/* clear all */
+	mtdcr(uic1er, 0x00000000);	/* disable all */
+	mtdcr(uic1cr, 0x00000000);	/* all non-critical */
+	mtdcr(uic1pr, 0xffffffff);	/* per ref-board manual */
+	mtdcr(uic1tr, 0x00000000);	/* per ref-board manual */
+	mtdcr(uic1vr, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(uic1sr, 0xffffffff);	/* clear all */
+
+	mtdcr(uic2sr, 0xffffffff);	/* clear all */
+	mtdcr(uic2er, 0x00000000);	/* disable all */
+	mtdcr(uic2cr, 0x00000000);	/* all non-critical */
+	mtdcr(uic2pr, 0xffffffff);	/* per ref-board manual */
+	mtdcr(uic2tr, 0x00000000);	/* per ref-board manual */
+	mtdcr(uic2vr, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(uic2sr, 0xffffffff);	/* clear all */
+
+	/* take sim card reader and CF controller out of reset */
+	out_8((u8 *) CFG_CPLD_BASE + 0x04, 0x80);
+
+	/* Configure the two Ethernet PHYs.  For each PHY, configure for fiber
+	 * if the SFP module is present, and for copper if it is not present.
+	 */
+	gpio0_ir = in_be32((u32 *) GPIO0_IR);
+	for (eth = 0; eth < 2; ++eth) {
+		if (gpio0_ir & (0x00000001 << (1 - eth))) {
+			/* SFP module not present: configure PHY for copper. */
+			/* Set PHY to autonegotate 10 MB, 100MB, or 1 GB */
+			out_8((u8 *) CFG_CPLD_BASE + 0x06,
+			      in_8((u8 *) CFG_CPLD_BASE + 0x06) |
+			      0x06 << (4 * eth));
+		} else {
+			/* SFP module present: configure PHY for fiber and
+			   enable output */
+			out_be32((u32 *) GPIO0_OR, in_be32((u32 *) GPIO0_OR) |
+				 (0x00000001 << (4 - eth)));
+			out_be32((u32 *) GPIO1_OR, in_be32((u32 *) GPIO1_OR) &
+				 ~(0x00000001 << (31 - eth)));
+		}
+	}
+	/* enable Ethernet: set GPIO45 and GPIO46 to 1 */
+	out_be32((u32 *) GPIO1_OR, in_be32((u32 *) GPIO1_OR) | 0x00060000);
+
+	/* select Ethernet pins */
+	mfsdr(SDR0_PFC1, sdr0_pfc1);
+	sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
+	    SDR0_PFC1_SELECT_CONFIG_4;
+	mfsdr(SDR0_PFC2, sdr0_pfc2);
+	sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
+	    SDR0_PFC2_SELECT_CONFIG_4;
+	mtsdr(SDR0_PFC2, sdr0_pfc2);
+	mtsdr(SDR0_PFC1, sdr0_pfc1);
+
+	/* PCI arbiter enabled */
+	mfsdr(sdr_pci0, reg);
+	mtsdr(sdr_pci0, 0x80000000 | reg);
+
+	return 0;
+}
+
+static int man_data_read(unsigned int addr)
+{
+	/*
+	 * Read an octet of data from address "addr" in the manufacturer's
+	 * information serial EEPROM, or -1 on error.
+	 */
+	u8 data[2];
+
+	if (0 != i2c_probe(MAN_DATA_EEPROM_ADDR) ||
+	    0 != i2c_read(MAN_DATA_EEPROM_ADDR, addr, 1, data, 1)) {
+		debug("man_data_read(0x%02X) failed\n", addr);
+		return -1;
+	}
+	debug("man_info_read(0x%02X) returned 0x%02X\n", addr, data[0]);
+	return data[0];
+}
+
+static unsigned int man_data_field_addr(unsigned int const field)
+{
+	/*
+	 * The manufacturer's information serial EEPROM contains a sequence of
+	 * zero-delimited fields.  Return the starting address of field "field",
+	 * or 0 on error.
+	 */
+	unsigned addr, i;
+
+	if (0 == field || 'A' != man_data_read(0) || '\0' != man_data_read(1))
+		/* Only format "A" is currently supported */
+		return 0;
+
+	for (addr = 2, i = 1; i < field && addr < 256; ++addr) {
+		if ('\0' == man_data_read(addr))
+			++i;
+	}
+	return (addr < 256) ? addr : 0;
+}
+
+static char *man_data_read_field(char s[], unsigned const field,
+				 unsigned const length)
+{
+	/*
+	 * Place the null-terminated contents of field "field" of length
+	 * "length" from the manufacturer's information serial EEPROM into
+	 * string "s[length + 1]" and return a pointer to s, or return 0 on
+	 * error. In either case the original contents of s[] is not preserved.
+	 */
+	unsigned addr, i;
+
+	addr = man_data_field_addr(field);
+	if (0 == addr || addr + length >= 255)
+		return 0;
+
+	for (i = 0; i < length; ++i) {
+		int const c = man_data_read(addr++);
+
+		if (c <= 0)
+			return 0;
+
+		s[i] = (char)c;
+	}
+	if (0 != man_data_read(addr))
+		return 0;
+
+	s[i] = '\0';
+	return s;
+}
+
+static void set_serial_number(void)
+{
+	/*
+	 * If the environmental variable "serial#" is not set, try to set it
+	 * from the manufacturer's information serial EEPROM.
+	 */
+	char s[MAN_SERIAL_NO_LENGTH + 1];
+
+	if (0 == getenv("serial#") &&
+	    0 != man_data_read_field(s, MAN_SERIAL_NO_FIELD,
+				     MAN_SERIAL_NO_LENGTH))
+		setenv("serial#", s);
+}
+
+static void set_mac_addresses(void)
+{
+	/*
+	 * If the environmental variables "ethaddr" and/or "eth1addr" are not
+	 * set, try to set them from the manufacturer's information serial
+	 * EEPROM.
+	 */
+	char s[MAN_MAC_ADDR_LENGTH + 1];
+
+	if (0 != getenv("ethaddr") && 0 != getenv("eth1addr"))
+		return;
+
+	if (0 == man_data_read_field(s, MAN_MAC_ADDR_FIELD,
+				     MAN_MAC_ADDR_LENGTH))
+		return;
+
+	if (0 == getenv("ethaddr"))
+		setenv("ethaddr", s);
+
+	if (0 == getenv("eth1addr")) {
+		++s[MAN_MAC_ADDR_LENGTH - 1];
+		setenv("eth1addr", s);
+	}
+}
+
+/*---------------------------------------------------------------------------+
+  | misc_init_r.
+  +---------------------------------------------------------------------------*/
+int misc_init_r(void)
+{
+	uint pbcr;
+	int size_val = 0;
+	u32 reg;
+	unsigned long usb2d0cr = 0;
+	unsigned long usb2phy0cr, usb2h0cr = 0;
+	unsigned long sdr0_pfc1;
+	char *act = getenv("usbact");
+
+	/*
+	 * FLASH stuff...
+	 */
+
+	/* Re-do sizing to get full correct info */
+
+	/* adjust flash start and offset */
+	gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
+	gd->bd->bi_flashoffset = 0;
+
+	mtdcr(ebccfga, pb0cr);
+	pbcr = mfdcr(ebccfgd);
+	switch (gd->bd->bi_flashsize) {
+	case 1 << 20:
+		size_val = 0;
+		break;
+	case 2 << 20:
+		size_val = 1;
+		break;
+	case 4 << 20:
+		size_val = 2;
+		break;
+	case 8 << 20:
+		size_val = 3;
+		break;
+	case 16 << 20:
+		size_val = 4;
+		break;
+	case 32 << 20:
+		size_val = 5;
+		break;
+	case 64 << 20:
+		size_val = 6;
+		break;
+	case 128 << 20:
+		size_val = 7;
+		break;
+	}
+	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
+	mtdcr(ebccfga, pb0cr);
+	mtdcr(ebccfgd, pbcr);
+
+	/*
+	 * Re-check to get correct base address
+	 */
+	flash_get_size(gd->bd->bi_flashstart, 0);
+
+	/* Monitor protection ON by default */
+	(void)flash_protect(FLAG_PROTECT_SET, -CFG_MONITOR_LEN, 0xffffffff,
+			    &flash_info[0]);
+
+	/* Env protection ON by default */
+	(void)flash_protect(FLAG_PROTECT_SET,
+			    CFG_ENV_ADDR_REDUND,
+			    CFG_ENV_ADDR_REDUND + 2 * CFG_ENV_SECT_SIZE - 1,
+			    &flash_info[0]);
+
+	/*
+	 * USB suff...
+	 */
+	if (act == NULL || strcmp(act, "hostdev") == 0) {
+		/* SDR Setting */
+		mfsdr(SDR0_PFC1, sdr0_pfc1);
+		mfsdr(SDR0_USB2D0CR, usb2d0cr);
+		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+		mfsdr(SDR0_USB2H0CR, usb2h0cr);
+
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_XOCLK_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_WDINT_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ;	/*1 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DVBUS_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DWNSTR_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;	/*1 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_UTMICN_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;	/*1 */
+
+		/* An 8-bit/60MHz interface is the only possible alternative
+		   when connecting the Device to the PHY */
+		usb2h0cr = usb2h0cr & ~SDR0_USB2H0CR_WDINT_MASK;
+		usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ;	/*1 */
+
+		/* To enable the USB 2.0 Device function through the UTMI interface */
+		usb2d0cr = usb2d0cr & ~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
+		usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION;	/*1 */
+
+		sdr0_pfc1 = sdr0_pfc1 & ~SDR0_PFC1_UES_MASK;
+		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL;	/*0 */
+
+		mtsdr(SDR0_PFC1, sdr0_pfc1);
+		mtsdr(SDR0_USB2D0CR, usb2d0cr);
+		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+		mtsdr(SDR0_USB2H0CR, usb2h0cr);
+
+		/*clear resets */
+		udelay(1000);
+		mtsdr(SDR0_SRST1, 0x00000000);
+		udelay(1000);
+		mtsdr(SDR0_SRST0, 0x00000000);
+
+		printf("USB:   Host(int phy) Device(ext phy)\n");
+
+	} else if (strcmp(act, "dev") == 0) {
+		/*-------------------PATCH-------------------------------*/
+		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_XOCLK_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DVBUS_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DWNSTR_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST;	/*1 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_UTMICN_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST;	/*1 */
+		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+
+		udelay(1000);
+		mtsdr(SDR0_SRST1, 0x672c6000);
+
+		udelay(1000);
+		mtsdr(SDR0_SRST0, 0x00000080);
+
+		udelay(1000);
+		mtsdr(SDR0_SRST1, 0x60206000);
+
+		*(unsigned int *)(0xe0000350) = 0x00000001;
+
+		udelay(1000);
+		mtsdr(SDR0_SRST1, 0x60306000);
+		/*-------------------PATCH-------------------------------*/
+
+		/* SDR Setting */
+		mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+		mfsdr(SDR0_USB2H0CR, usb2h0cr);
+		mfsdr(SDR0_USB2D0CR, usb2d0cr);
+		mfsdr(SDR0_PFC1, sdr0_pfc1);
+
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_XOCLK_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_WDINT_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DVBUS_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN;	/*1 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DWNSTR_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV;	/*0 */
+		usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_UTMICN_MASK;
+		usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV;	/*0 */
+
+		usb2h0cr = usb2h0cr & ~SDR0_USB2H0CR_WDINT_MASK;
+		usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ;	/*0 */
+
+		usb2d0cr = usb2d0cr & ~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
+		usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION;	/*0 */
+
+		sdr0_pfc1 = sdr0_pfc1 & ~SDR0_PFC1_UES_MASK;
+		sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL;	/*1 */
+
+		mtsdr(SDR0_USB2H0CR, usb2h0cr);
+		mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
+		mtsdr(SDR0_USB2D0CR, usb2d0cr);
+		mtsdr(SDR0_PFC1, sdr0_pfc1);
+
+		/*clear resets */
+		udelay(1000);
+		mtsdr(SDR0_SRST1, 0x00000000);
+		udelay(1000);
+		mtsdr(SDR0_SRST0, 0x00000000);
+
+		printf("USB:   Device(int phy)\n");
+	}
+
+	mfsdr(SDR0_SRST1, reg);	/* enable security/kasumi engines */
+	reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
+	mtsdr(SDR0_SRST1, reg);
+
+	/*
+	 * Clear PLB4A0_ACR[WRP]
+	 * This fix will make the MAL burst disabling patch for the Linux
+	 * EMAC driver obsolete.
+	 */
+	reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
+	mtdcr(plb4_acr, reg);
+
+	set_serial_number();
+	set_mac_addresses();
+	return 0;
+}
+
+int checkboard(void)
+{
+	char const *const s = getenv("serial#");
+	u8 const rev = in_8((u8 *) CFG_CPLD_BASE + 0);
+	u32 const gpio0_or = in_be32((u32 *) GPIO0_OR);
+
+	printf("Board: Korat, Rev. %X", rev);
+	if (s != NULL)
+		printf(", serial# %s", s);
+
+	printf(", Ethernet PHY 0: ");
+	if (gpio0_or & 0x00000010)
+		printf("fiber");
+	else
+		printf("copper");
+
+	printf(", PHY 1: ");
+	if (gpio0_or & 0x00000008)
+		printf("fiber");
+	else
+		printf("copper");
+
+	printf(".\n");
+	return (0);
+}
+
+#if defined(CFG_DRAM_TEST)
+int testdram(void)
+{
+	unsigned long *mem = (unsigned long *)0;
+	const unsigned long kend = (1024 / sizeof(unsigned long));
+	unsigned long k, n;
+
+	mtmsr(0);
+
+	/* TODO: find correct size of SDRAM */
+	for (k = 0; k < CFG_MBYTES_SDRAM;
+	     ++k, mem += (1024 / sizeof(unsigned long))) {
+		if ((k & 1023) == 0)
+			printf("%3d MB\r", k / 1024);
+
+		memset(mem, 0xaaaaaaaa, 1024);
+		for (n = 0; n < kend; ++n) {
+			if (mem[n] != 0xaaaaaaaa) {
+				printf("SDRAM test fails at: %08x\n",
+				       (uint) & mem[n]);
+				return 1;
+			}
+		}
+
+		memset(mem, 0x55555555, 1024);
+		for (n = 0; n < kend; ++n) {
+			if (mem[n] != 0x55555555) {
+				printf("SDRAM test fails at: %08x\n",
+				       (uint) & mem[n]);
+				return 1;
+			}
+		}
+	}
+	printf("SDRAM test passes\n");
+	return 0;
+}
+#endif /* defined(CFG_DRAM_TEST) */
+
+/*************************************************************************
+ *  pci_pre_init
+ *
+ *  This routine is called just prior to registering the hose and gives
+ *  the board the opportunity to check things. Returning a value of zero
+ *  indicates that things are bad & PCI initialization should be aborted.
+ *
+ *	Different boards may wish to customize the pci controller structure
+ *	(add regions, override default access routines, etc) or perform
+ *	certain pre-initialization actions.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI)
+int pci_pre_init(struct pci_controller *hose)
+{
+	unsigned long addr;
+
+	/*-------------------------------------------------------------------------+
+	  | Set priority for all PLB3 devices to 0.
+	  | Set PLB3 arbiter to fair mode.
+	  +-------------------------------------------------------------------------*/
+	mfsdr(sdr_amp1, addr);
+	mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
+	addr = mfdcr(plb3_acr);
+	mtdcr(plb3_acr, addr | 0x80000000);
+
+	/*-------------------------------------------------------------------------+
+	  | Set priority for all PLB4 devices to 0.
+	  +-------------------------------------------------------------------------*/
+	mfsdr(sdr_amp0, addr);
+	mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
+	addr = mfdcr(plb4_acr) | 0xa0000000;	/* Was 0x8---- */
+	mtdcr(plb4_acr, addr);
+
+	/*-------------------------------------------------------------------------+
+	  | Set Nebula PLB4 arbiter to fair mode.
+	  +-------------------------------------------------------------------------*/
+	/* Segment0 */
+	addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
+	addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
+	addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
+	addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
+	mtdcr(plb0_acr, addr);
+
+	/* Segment1 */
+	addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
+	addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
+	addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
+	addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
+	mtdcr(plb1_acr, addr);
+
+	return 1;
+}
+#endif /* defined(CONFIG_PCI) */
+
+/*************************************************************************
+ *  pci_target_init
+ *
+ *	The bootstrap configuration provides default settings for the pci
+ *	inbound map (PIM). But the bootstrap config choices are limited and
+ *	may not be sufficient for a given board.
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
+void pci_target_init(struct pci_controller *hose)
+{
+	/*--------------------------------------------------------------------------+
+	 * Set up Direct MMIO registers
+	 *--------------------------------------------------------------------------*/
+	/*--------------------------------------------------------------------------+
+	  | PowerPC440EPX PCI Master configuration.
+	  | Map one 1Gig range of PLB/processor addresses to PCI memory space.
+	  |   PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
+	  |   Use byte reversed out routines to handle endianess.
+	  | Make this region non-prefetchable.
+	  +--------------------------------------------------------------------------*/
+	out32r(PCIX0_PMM0MA, 0x00000000);	/* PMM0 Mask/Attribute - disabled b4 setting */
+	out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE);	/* PMM0 Local Address */
+	out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE);	/* PMM0 PCI Low Address */
+	out32r(PCIX0_PMM0PCIHA, 0x00000000);	/* PMM0 PCI High Address */
+	out32r(PCIX0_PMM0MA, 0xE0000001);	/* 512M + No prefetching, and enable region */
+
+	out32r(PCIX0_PMM1MA, 0x00000000);	/* PMM0 Mask/Attribute - disabled b4 setting */
+	out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2);	/* PMM0 Local Address */
+	out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2);	/* PMM0 PCI Low Address */
+	out32r(PCIX0_PMM1PCIHA, 0x00000000);	/* PMM0 PCI High Address */
+	out32r(PCIX0_PMM1MA, 0xE0000001);	/* 512M + No prefetching, and enable region */
+
+	out32r(PCIX0_PTM1MS, 0x00000001);	/* Memory Size/Attribute */
+	out32r(PCIX0_PTM1LA, 0);	/* Local Addr. Reg */
+	out32r(PCIX0_PTM2MS, 0);	/* Memory Size/Attribute */
+	out32r(PCIX0_PTM2LA, 0);	/* Local Addr. Reg */
+
+	/*--------------------------------------------------------------------------+
+	 * Set up Configuration registers
+	 *--------------------------------------------------------------------------*/
+
+	/* Program the board's subsystem id/vendor id */
+	pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
+			      CFG_PCI_SUBSYS_VENDORID);
+	pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
+
+	/* Configure command register as bus master */
+	pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
+
+	/* 240nS PCI clock */
+	pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
+
+	/* No error reporting */
+	pci_write_config_word(0, PCI_ERREN, 0);
+
+	pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
+
+	/*--------------------------------------------------------------------------+
+	 * Set up Configuration registers for on-board NEC uPD720101 USB controller
+	 *--------------------------------------------------------------------------*/
+	pci_write_config_dword(PCI_BDF(0x0, 0xC, 0x0), 0xE4, 0x00000020);
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
+
+/*************************************************************************
+ *  pci_master_init
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
+void pci_master_init(struct pci_controller *hose)
+{
+	unsigned short temp_short;
+
+	/*--------------------------------------------------------------------------+
+	  | Write the PowerPC440 EP PCI Configuration regs.
+	  |   Enable PowerPC440 EP to be a master on the PCI bus (PMM).
+	  |   Enable PowerPC440 EP to act as a PCI memory target (PTM).
+	  +--------------------------------------------------------------------------*/
+	pci_read_config_word(0, PCI_COMMAND, &temp_short);
+	pci_write_config_word(0, PCI_COMMAND,
+			      temp_short | PCI_COMMAND_MASTER |
+			      PCI_COMMAND_MEMORY);
+}
+#endif
+
+/*************************************************************************
+ *  is_pci_host
+ *
+ *	This routine is called to determine if a pci scan should be
+ *	performed. With various hardware environments (especially cPCI and
+ *	PPMC) it's insufficient to depend on the state of the arbiter enable
+ *	bit in the strap register, or generic host/adapter assumptions.
+ *
+ *	Rather than hard-code a bad assumption in the general 440 code, the
+ *	440 pci code requires the board to decide at runtime.
+ *
+ *	Return 0 for adapter mode, non-zero for host (monarch) mode.
+ *
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI)
+int is_pci_host(struct pci_controller *hose)
+{
+	/* Korat is always configured as host. */
+	return (1);
+}
+#endif
+
+#if defined(CONFIG_POST)
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+	return 0;		/* No hotkeys supported */
+}
+#endif