Patch by Travis Sawyer, 30 Dec 2003:

Add support for IBM PPC440GX. Multiple EMAC Ethernet devices,
select MDI port based on enabled EMAC device.
Add support for XES Inc <http://www.xes-inc.com> XPedite1000 440GX
base PrPMC board.

1 files changed, 358 insertions, 0 deletions

diff --git a/board/xpedite1k/xpedite1k.c b/board/xpedite1k/xpedite1k.c
new file mode 100644
index 0000000000..c025c85db8
--- /dev/null
+++ b/board/xpedite1k/xpedite1k.c
@@ -0,0 +1,358 @@
+/*
+ *  Copyright (C) 2003 Travis B. Sawyer	 <travis.sawyer@sandburst.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 <spd_sdram.h>
+#include <i2c.h>
+
+#define BOOT_SMALL_FLASH	32	/* 00100000 */
+#define FLASH_ONBD_N		2	/* 00000010 */
+#define FLASH_SRAM_SEL		1	/* 00000001 */
+
+long int fixed_sdram (void);
+
+int board_pre_init (void)
+{
+	unsigned long sdrreg;
+	/* TBS:	 Setup the GPIO access for the user LEDs */
+	mfsdr(sdr_pfc0, sdrreg);
+	mtsdr(sdr_pfc0, (sdrreg & ~0x00000100) | 0x00000E00);
+	out32(CFG_GPIO_BASE + 0x018, (USR_LED0 | USR_LED1 | USR_LED2 | USR_LED3));
+	LED0_OFF();
+	LED1_OFF();
+	LED2_OFF();
+	LED3_OFF();
+
+	/*--------------------------------------------------------------------
+	 * Setup the external bus controller/chip selects
+	 *-------------------------------------------------------------------*/
+
+	/* set the bus controller */
+	mtebc (pb0ap, 0x04055200);	/* FLASH/SRAM */
+	mtebc (pb0cr, 0xfff18000);	/* BAS=0xfff 1MB R/W 8-bit */
+
+	/*--------------------------------------------------------------------
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 *-------------------------------------------------------------------*/
+	mtdcr (uic0sr, 0xffffffff);	/* clear all */
+	mtdcr (uic0er, 0x00000000);	/* disable all */
+	mtdcr (uic0cr, 0x00000003);	/* SMI & UIC1 crit are critical */
+	mtdcr (uic0pr, 0xfffffe00);	/* per ref-board manual */
+	mtdcr (uic0tr, 0x01c00000);	/* per ref-board manual */
+	mtdcr (uic0vr, 0x00000001);	/* 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, 0xffffc0ff);	/* per ref-board manual */
+	mtdcr (uic1tr, 0x00ff8000);	/* per ref-board manual */
+	mtdcr (uic1vr, 0x00000001);	/* 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, 0x00ff8c0f);	/* per ref-board manual */
+	mtdcr (uic2vr, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr (uic2sr, 0xffffffff);	/* clear all */
+
+	mtdcr (uicb0sr, 0xfc000000); /* clear all */
+	mtdcr (uicb0er, 0x00000000); /* disable all */
+	mtdcr (uicb0cr, 0x00000000); /* all non-critical */
+	mtdcr (uicb0pr, 0xfc000000); /* */
+	mtdcr (uicb0tr, 0x00000000); /* */
+	mtdcr (uicb0vr, 0x00000001); /* */
+
+	LED0_ON();
+
+
+	return 0;
+}
+
+int checkboard (void)
+{
+	sys_info_t sysinfo;
+	get_sys_info (&sysinfo);
+
+	printf ("Board: XES XPedite1000 440GX\n");
+	printf ("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000);
+	printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
+	printf ("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
+	printf ("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
+	printf ("\tEPB: %lu MHz\n", sysinfo.freqEPB / 1000000);
+
+	return (0);
+}
+
+
+long int initdram (int board_type)
+{
+	long dram_size = 0;
+
+#if defined(CONFIG_SPD_EEPROM)
+	dram_size = spd_sdram (0);
+#else
+	dram_size = fixed_sdram ();
+#endif
+	return dram_size;
+}
+
+
+#if defined(CFG_DRAM_TEST)
+int testdram (void)
+{
+	uint *pstart = (uint *) 0x00000000;
+	uint *pend = (uint *) 0x08000000;
+	uint *p;
+
+	for (p = pstart; p < pend; p++)
+		*p = 0xaaaaaaaa;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0xaaaaaaaa) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+
+	for (p = pstart; p < pend; p++)
+		*p = 0x55555555;
+
+	for (p = pstart; p < pend; p++) {
+		if (*p != 0x55555555) {
+			printf ("SDRAM test fails at: %08x\n", (uint) p);
+			return 1;
+		}
+	}
+	return 0;
+}
+#endif
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ *
+ *  Assumes:	128 MB, non-ECC, non-registered
+ *		PLB @ 133 MHz
+ *
+ ************************************************************************/
+long int fixed_sdram (void)
+{
+	uint reg;
+
+	/*--------------------------------------------------------------------
+	 * Setup some default
+	 *------------------------------------------------------------------*/
+	mtsdram (mem_uabba, 0x00000000);	/* ubba=0 (default)		*/
+	mtsdram (mem_slio, 0x00000000);		/* rdre=0 wrre=0 rarw=0		*/
+	mtsdram (mem_devopt, 0x00000000);	/* dll=0 ds=0 (normal)		*/
+	mtsdram (mem_wddctr, 0x00000000);	/* wrcp=0 dcd=0			*/
+	mtsdram (mem_clktr, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0	*/
+
+	/*--------------------------------------------------------------------
+	 * Setup for board-specific specific mem
+	 *------------------------------------------------------------------*/
+	/*
+	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
+	 */
+	mtsdram (mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram (mem_tr0, 0x410a4012);	/* WR=2	 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
+	/* RA=10 RD=3			    */
+	mtsdram (mem_tr1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
+	mtsdram (mem_rtr, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB	    */
+	mtsdram (mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM    */
+	udelay (400);			/* Delay 200 usecs (min)	    */
+
+	/*--------------------------------------------------------------------
+	 * Enable the controller, then wait for DCEN to complete
+	 *------------------------------------------------------------------*/
+	mtsdram (mem_cfg0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit	    */
+	for (;;) {
+		mfsdram (mem_mcsts, reg);
+		if (reg & 0x80000000)
+			break;
+	}
+
+	return (128 * 1024 * 1024);	/* 128 MB			    */
+}
+#endif	/* !defined(CONFIG_SPD_EEPROM) */
+
+
+/*************************************************************************
+ *  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) && defined(CFG_PCI_PRE_INIT)
+int pci_pre_init(struct pci_controller * hose )
+{
+	unsigned long strap;
+
+	/*--------------------------------------------------------------------------+
+	 * TBS:
+	 *	The xpedite1k is a PrPMC board, however for our purposes it is the host
+	 *--------------------------------------------------------------------------*/
+	strap = mfdcr(cpc0_strp1);
+	if( (strap & 0x00100000) == 0 ){
+		printf("PCI: CPC0_STRP1[PAE] not set.\n");
+		return 0;
+	}
+
+	return 1;
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */
+
+/*************************************************************************
+ *  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 )
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/*--------------------------------------------------------------------------+
+	 * Disable everything
+	 *--------------------------------------------------------------------------*/
+	out32r( PCIX0_PIM0SA, 0 ); /* disable */
+	out32r( PCIX0_PIM1SA, 0 ); /* disable */
+	out32r( PCIX0_PIM2SA, 0 ); /* disable */
+	out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */
+
+	/*--------------------------------------------------------------------------+
+	 * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping
+	 * options to not support sizes such as 128/256 MB.
+	 *--------------------------------------------------------------------------*/
+	out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE );
+	out32r( PCIX0_PIM0LAH, 0 );
+	out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 );
+
+	out32r( PCIX0_BAR0, 0 );
+
+	/*--------------------------------------------------------------------------+
+	 * Program the board's subsystem id/vendor id
+	 *--------------------------------------------------------------------------*/
+	out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID );
+	out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID );
+
+	out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY );
+}
+#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
+
+
+/*************************************************************************
+ *  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)
+{
+	/* The ebony board is always configured as host. */
+	/* TBS:	 The xpedite1k is not necessarily the host, however for our purposes, it is. */
+	return(1);
+}
+#endif /* defined(CONFIG_PCI) */
+
+#ifdef 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 (ctrlc());
+}
+
+void post_word_store (ulong a)
+{
+	volatile ulong *save_addr =
+		(volatile ulong *)(CFG_POST_WORD_ADDR);
+
+	*save_addr = a;
+}
+
+ulong post_word_load (void)
+{
+	volatile ulong *save_addr =
+		(volatile ulong *)(CFG_POST_WORD_ADDR);
+
+	return *save_addr;
+}
+#endif
+
+/*-----------------------------------------------------------------------------
+ * board_get_enetaddr -- Read the MAC Addresses in the I2C EEPROM
+ *-----------------------------------------------------------------------------
+ */
+static int enetaddr_num = 0;
+void board_get_enetaddr (uchar * enet)
+{
+	int i;
+	unsigned char buff[0x100], *cp;
+
+	/* Initialize I2C					*/
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+	/* Read 256 bytes in EEPROM				*/
+	i2c_read (0x50, 0, 1, buff, 0x100);
+
+	if (enetaddr_num == 0) {
+		cp = &buff[0xF4];
+		enetaddr_num = 1;
+	}
+	else
+		cp = &buff[0xFA];
+
+	for (i = 0; i < 6; i++,cp++)
+		enet[i] = *cp;
+
+	printf ("MAC address = %02x:%02x:%02x:%02x:%02x:%02x\n",
+		enet[0], enet[1], enet[2], enet[3], enet[4], enet[5]);
+
+}