Add Sandburst Metrobox and Sandburst Karef board support packages.
Second serial port on 440GX now defined as a system device.
Add 'Short Etch' code for Cicada PHY within 440gx_enet.c
Patch by Travis B. Sawyer, 12 Jul 2005
Check return value of malloc in 440gx_enet.c
Patch by Travis B. Sawyer, 18 Jul 2005
diff --git a/board/sandburst/common/flash.c b/board/sandburst/common/flash.c
new file mode 100644
index 0000000..762fb73
--- /dev/null
+++ b/board/sandburst/common/flash.c
@@ -0,0 +1,512 @@
+/*
+ * (C) Copyright 2002-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
+ * Add support for Am29F016D and dynamic switch setting.
+ *
+ * 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
+ */
+/*
+ * Ported from Ebony flash support
+ * Travis B. Sawyer
+ * Sandburst Corporation
+ */
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+
+
+#undef DEBUG
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif /* DEBUG */
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+static unsigned long flash_addr_table[8][CFG_MAX_FLASH_BANKS] = {
+ {0xfff80000} /* Boot Flash */
+};
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+
+
+#define ADDR0 0x5555
+#define ADDR1 0x2aaa
+#define FLASH_WORD_SIZE unsigned char
+
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ unsigned long total_b = 0;
+ unsigned long size_b[CFG_MAX_FLASH_BANKS];
+ unsigned short index = 0;
+ int i;
+
+
+ DEBUGF("\n");
+ DEBUGF("FLASH: Index: %d\n", index);
+
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ flash_info[i].sector_count = -1;
+ flash_info[i].size = 0;
+
+ /* check whether the address is 0 */
+ if (flash_addr_table[index][i] == 0) {
+ continue;
+ }
+
+ /* call flash_get_size() to initialize sector address */
+ size_b[i] = flash_get_size(
+ (vu_long *)flash_addr_table[index][i], &flash_info[i]);
+ flash_info[i].size = size_b[i];
+ if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
+ i, size_b[i], size_b[i]<<20);
+ flash_info[i].sector_count = -1;
+ flash_info[i].size = 0;
+ }
+
+ total_b += flash_info[i].size;
+ }
+
+ return total_b;
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t *info)
+{
+ int i;
+ int k;
+ int size;
+ int erased;
+ volatile unsigned long *flash;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ default: printf ("Unknown Vendor "); break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM040: printf ("AM29F040 (512 Kbit, uniform sector size)\n");
+ break;
+ default: printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ printf (" Size: %ld KB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i=0; i<info->sector_count; ++i) {
+ /*
+ * Check if whole sector is erased
+ */
+ if (i != (info->sector_count-1))
+ size = info->start[i+1] - info->start[i];
+ else
+ size = info->start[0] + info->size - info->start[i];
+ erased = 1;
+ flash = (volatile unsigned long *)info->start[i];
+ size = size >> 2; /* divide by 4 for longword access */
+ for (k=0; k<size; k++)
+ {
+ if (*flash++ != 0xffffffff)
+ {
+ erased = 0;
+ break;
+ }
+ }
+
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s%s",
+ info->start[i],
+ erased ? " E" : " ",
+ info->protect[i] ? "RO " : " "
+ );
+ }
+ printf ("\n");
+ return;
+ }
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+ short i;
+ FLASH_WORD_SIZE value;
+ ulong base = (ulong)addr;
+ volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
+
+ DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr );
+
+ /* Write auto select command: read Manufacturer ID */
+ udelay(10000);
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ udelay(1000);
+ addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ udelay(1000);
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
+ udelay(1000);
+
+ value = addr2[0];
+
+ DEBUGF("FLASH MANUFACT: %x\n", value);
+
+ switch (value) {
+ case (FLASH_WORD_SIZE)AMD_MANUFACT:
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return (0); /* no or unknown flash */
+ }
+
+ value = addr2[1]; /* device ID */
+
+ DEBUGF("\nFLASH DEVICEID: %x\n", value);
+
+ switch (value) {
+ case (FLASH_WORD_SIZE)AMD_ID_LV040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x00080000; /* => 512 kb */
+ break;
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return (0); /* => no or unknown flash */
+
+ }
+
+ /* set up sector start address table */
+ if (info->flash_id == FLASH_AM040) {
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000);
+ } else {
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] = base + (i * 0x00010000) - 0x00030000;
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ for (; i >= 0; i--) {
+ info->start[i] = base + i * 0x00010000;
+ }
+ }
+ }
+
+ /* check for protected sectors */
+ for (i = 0; i < info->sector_count; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ /* D0 = 1 if protected */
+ addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+ info->protect[i] = 0;
+ else
+ info->protect[i] = addr2[2] & 1;
+ }
+
+ /* reset to return to reading data */
+ addr2[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
+
+ /*
+ * Prevent writes to uninitialized FLASH.
+ */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr2 = (FLASH_WORD_SIZE *)info->start[0];
+ *addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
+ }
+
+ return (info->size);
+}
+
+int wait_for_DQ7(flash_info_t *info, int sect)
+{
+ ulong start, now, last;
+ volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
+
+ start = get_timer (0);
+ last = start;
+ while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ return -1;
+ }
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
+ }
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
+ volatile FLASH_WORD_SIZE *addr2;
+ int flag, prot, sect, l_sect;
+ int i;
+
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
+ }
+ return 1;
+ }
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("Can't erase unknown flash type - aborted\n");
+ return 1;
+ }
+
+ prot = 0;
+ for (sect=s_first; sect<=s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
+
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
+
+ l_sect = -1;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
+ DEBUGF("Erasing sector %p\n", addr2);
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr2[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */
+ for (i=0; i<50; i++)
+ udelay(1000); /* wait 1 ms */
+ } else {
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr2[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */
+ }
+ l_sect = sect;
+ /*
+ * Wait for each sector to complete, it's more
+ * reliable. According to AMD Spec, you must
+ * issue all erase commands within a specified
+ * timeout. This has been seen to fail, especially
+ * if printf()s are included (for debug)!!
+ */
+ wait_for_DQ7(info, sect);
+ }
+ }
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
+
+ /* reset to read mode */
+ addr = (FLASH_WORD_SIZE *)info->start[0];
+ addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
+
+ printf (" done\n");
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+ ulong cp, wp, data;
+ int i, l, rc;
+
+ wp = (addr & ~3); /* get lower word aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ data = 0;
+ for (i=0, cp=wp; i<l; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+ for (; i<4 && cnt>0; ++i) {
+ data = (data << 8) | *src++;
+ --cnt;
+ ++cp;
+ }
+ for (; cnt==0 && i<4; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+
+ if ((rc = write_word(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
+ }
+
+ /*
+ * handle word aligned part
+ */
+ while (cnt >= 4) {
+ data = 0;
+ for (i=0; i<4; ++i) {
+ data = (data << 8) | *src++;
+ }
+ if ((rc = write_word(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
+ cnt -= 4;
+ }
+
+ if (cnt == 0) {
+ return (0);
+ }
+
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+ data = (data << 8) | *src++;
+ --cnt;
+ }
+ for (; i<4; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+
+ return (write_word(info, wp, data));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t * info, ulong dest, ulong data)
+{
+ volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) (info->start[0]);
+ volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *) dest;
+ volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data;
+ ulong start;
+ int i;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*((volatile FLASH_WORD_SIZE *) dest) &
+ (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) {
+ return (2);
+ }
+
+ for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) {
+ int flag;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+
+ addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
+ addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
+ addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00A000A0;
+
+ dest2[i] = data2[i];
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while ((dest2[i] & (FLASH_WORD_SIZE) 0x00800080) !=
+ (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) {
+
+ if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ }
+ }
+
+ return (0);
+}
diff --git a/board/sandburst/common/ppc440gx_i2c.c b/board/sandburst/common/ppc440gx_i2c.c
new file mode 100644
index 0000000..c3b267c
--- /dev/null
+++ b/board/sandburst/common/ppc440gx_i2c.c
@@ -0,0 +1,515 @@
+/*
+ * Copyright (C) 2005 Sandburst Corporation
+ *
+ * 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
+ */
+
+/*
+ * Ported from cpu/ppc4xx/i2c.c by AS HARNOIS by
+ * Travis B. Sawyer
+ * Sandburst Corporation.
+ */
+#include <common.h>
+#include <ppc4xx.h>
+#if defined(CONFIG_440)
+# include <440_i2c.h>
+#else
+# include <405gp_i2c.h>
+#endif
+#include <i2c.h>
+#include <440_i2c.h>
+#include <command.h>
+#include "ppc440gx_i2c.h"
+
+#ifdef CONFIG_I2C_BUS1
+
+
+
+#define IIC_OK 0
+#define IIC_NOK 1
+#define IIC_NOK_LA 2 /* Lost arbitration */
+#define IIC_NOK_ICT 3 /* Incomplete transfer */
+#define IIC_NOK_XFRA 4 /* Transfer aborted */
+#define IIC_NOK_DATA 5 /* No data in buffer */
+#define IIC_NOK_TOUT 6 /* Transfer timeout */
+
+#define IIC_TIMEOUT 1 /* 1 second */
+#if defined(CFG_I2C_NOPROBES)
+static uchar i2c_no_probes[] = CFG_I2C_NOPROBES;
+#endif
+
+static void _i2c_bus1_reset (void)
+{
+ int i, status;
+
+ /* Reset status register */
+ /* write 1 in SCMP and IRQA to clear these fields */
+ out8 (IIC_STS1, 0x0A);
+
+ /* write 1 in IRQP IRQD LA ICT XFRA to clear these fields */
+ out8 (IIC_EXTSTS1, 0x8F);
+ __asm__ volatile ("eieio");
+
+ /*
+ * Get current state, reset bus
+ * only if no transfers are pending.
+ */
+ i = 10;
+ do {
+ /* Get status */
+ status = in8 (IIC_STS1);
+ udelay (500); /* 500us */
+ i--;
+ } while ((status & IIC_STS_PT) && (i > 0));
+ /* Soft reset controller */
+ status = in8 (IIC_XTCNTLSS1);
+ out8 (IIC_XTCNTLSS1, (status | IIC_XTCNTLSS_SRST));
+ __asm__ volatile ("eieio");
+
+ /* make sure where in initial state, data hi, clock hi */
+ out8 (IIC_DIRECTCNTL1, 0xC);
+ for (i = 0; i < 10; i++) {
+ if ((in8 (IIC_DIRECTCNTL1) & 0x3) != 0x3) {
+ /* clock until we get to known state */
+ out8 (IIC_DIRECTCNTL1, 0x8); /* clock lo */
+ udelay (100); /* 100us */
+ out8 (IIC_DIRECTCNTL1, 0xC); /* clock hi */
+ udelay (100); /* 100us */
+ } else {
+ break;
+ }
+ }
+ /* send start condition */
+ out8 (IIC_DIRECTCNTL1, 0x4);
+ udelay (1000); /* 1ms */
+ /* send stop condition */
+ out8 (IIC_DIRECTCNTL1, 0xC);
+ udelay (1000); /* 1ms */
+ /* Unreset controller */
+ out8 (IIC_XTCNTLSS1, (status & ~IIC_XTCNTLSS_SRST));
+ udelay (1000); /* 1ms */
+}
+
+void i2c1_init (int speed, int slaveadd)
+{
+ sys_info_t sysInfo;
+ unsigned long freqOPB;
+ int val, divisor;
+
+#ifdef CFG_I2C_INIT_BOARD
+ /* call board specific i2c bus reset routine before accessing the */
+ /* environment, which might be in a chip on that bus. For details */
+ /* about this problem see doc/I2C_Edge_Conditions. */
+ i2c_init_board();
+#endif
+
+ /* Handle possible failed I2C state */
+ /* FIXME: put this into i2c_init_board()? */
+ _i2c_bus1_reset ();
+
+ /* clear lo master address */
+ out8 (IIC_LMADR1, 0);
+
+ /* clear hi master address */
+ out8 (IIC_HMADR1, 0);
+
+ /* clear lo slave address */
+ out8 (IIC_LSADR1, 0);
+
+ /* clear hi slave address */
+ out8 (IIC_HSADR1, 0);
+
+ /* Clock divide Register */
+ /* get OPB frequency */
+ get_sys_info (&sysInfo);
+ freqOPB = sysInfo.freqPLB / sysInfo.pllOpbDiv;
+ /* set divisor according to freqOPB */
+ divisor = (freqOPB - 1) / 10000000;
+ if (divisor == 0)
+ divisor = 1;
+ out8 (IIC_CLKDIV1, divisor);
+
+ /* no interrupts */
+ out8 (IIC_INTRMSK1, 0);
+
+ /* clear transfer count */
+ out8 (IIC_XFRCNT1, 0);
+
+ /* clear extended control & stat */
+ /* write 1 in SRC SRS SWC SWS to clear these fields */
+ out8 (IIC_XTCNTLSS1, 0xF0);
+
+ /* Mode Control Register
+ Flush Slave/Master data buffer */
+ out8 (IIC_MDCNTL1, IIC_MDCNTL_FSDB | IIC_MDCNTL_FMDB);
+ __asm__ volatile ("eieio");
+
+
+ val = in8(IIC_MDCNTL1);
+ __asm__ volatile ("eieio");
+
+ /* Ignore General Call, slave transfers are ignored,
+ disable interrupts, exit unknown bus state, enable hold
+ SCL
+ 100kHz normaly or FastMode for 400kHz and above
+ */
+
+ val |= IIC_MDCNTL_EUBS|IIC_MDCNTL_HSCL;
+ if( speed >= 400000 ){
+ val |= IIC_MDCNTL_FSM;
+ }
+ out8 (IIC_MDCNTL1, val);
+
+ /* clear control reg */
+ out8 (IIC_CNTL1, 0x00);
+ __asm__ volatile ("eieio");
+
+}
+
+/*
+ This code tries to use the features of the 405GP i2c
+ controller. It will transfer up to 4 bytes in one pass
+ on the loop. It only does out8(lbz) to the buffer when it
+ is possible to do out16(lhz) transfers.
+
+ cmd_type is 0 for write 1 for read.
+
+ addr_len can take any value from 0-255, it is only limited
+ by the char, we could make it larger if needed. If it is
+ 0 we skip the address write cycle.
+
+ Typical case is a Write of an addr followd by a Read. The
+ IBM FAQ does not cover this. On the last byte of the write
+ we don't set the creg CHT bit, and on the first bytes of the
+ read we set the RPST bit.
+
+ It does not support address only transfers, there must be
+ a data part. If you want to write the address yourself, put
+ it in the data pointer.
+
+ It does not support transfer to/from address 0.
+
+ It does not check XFRCNT.
+*/
+static
+int i2c_transfer1(unsigned char cmd_type,
+ unsigned char chip,
+ unsigned char addr[],
+ unsigned char addr_len,
+ unsigned char data[],
+ unsigned short data_len )
+{
+ unsigned char* ptr;
+ int reading;
+ int tran,cnt;
+ int result;
+ int status;
+ int i;
+ uchar creg;
+
+ if( data == 0 || data_len == 0 ){
+ /*Don't support data transfer of no length or to address 0*/
+ printf( "i2c_transfer: bad call\n" );
+ return IIC_NOK;
+ }
+ if( addr && addr_len ){
+ ptr = addr;
+ cnt = addr_len;
+ reading = 0;
+ }else{
+ ptr = data;
+ cnt = data_len;
+ reading = cmd_type;
+ }
+
+ /*Clear Stop Complete Bit*/
+ out8(IIC_STS1,IIC_STS_SCMP);
+ /* Check init */
+ i=10;
+ do {
+ /* Get status */
+ status = in8(IIC_STS1);
+ __asm__ volatile("eieio");
+ i--;
+ } while ((status & IIC_STS_PT) && (i>0));
+
+ if (status & IIC_STS_PT) {
+ result = IIC_NOK_TOUT;
+ return(result);
+ }
+ /*flush the Master/Slave Databuffers*/
+ out8(IIC_MDCNTL1, ((in8(IIC_MDCNTL1))|IIC_MDCNTL_FMDB|IIC_MDCNTL_FSDB));
+ /*need to wait 4 OPB clocks? code below should take that long*/
+
+ /* 7-bit adressing */
+ out8(IIC_HMADR1,0);
+ out8(IIC_LMADR1, chip);
+ __asm__ volatile("eieio");
+
+ tran = 0;
+ result = IIC_OK;
+ creg = 0;
+
+ while ( tran != cnt && (result == IIC_OK)) {
+ int bc,j;
+
+ /* Control register =
+ Normal transfer, 7-bits adressing, Transfer up to bc bytes, Normal start,
+ Transfer is a sequence of transfers
+ */
+ creg |= IIC_CNTL_PT;
+
+ bc = (cnt - tran) > 4 ? 4 :
+ cnt - tran;
+ creg |= (bc-1)<<4;
+ /* if the real cmd type is write continue trans*/
+ if ( (!cmd_type && (ptr == addr)) || ((tran+bc) != cnt) )
+ creg |= IIC_CNTL_CHT;
+
+ if (reading)
+ creg |= IIC_CNTL_READ;
+ else {
+ for(j=0; j<bc; j++) {
+ /* Set buffer */
+ out8(IIC_MDBUF1,ptr[tran+j]);
+ __asm__ volatile("eieio");
+ }
+ }
+ out8(IIC_CNTL1, creg );
+ __asm__ volatile("eieio");
+
+ /* Transfer is in progress
+ we have to wait for upto 5 bytes of data
+ 1 byte chip address+r/w bit then bc bytes
+ of data.
+ udelay(10) is 1 bit time at 100khz
+ Doubled for slop. 20 is too small.
+ */
+ i=2*5*8;
+ do {
+ /* Get status */
+ status = in8(IIC_STS1);
+ __asm__ volatile("eieio");
+ udelay (10);
+ i--;
+ } while ((status & IIC_STS_PT) && !(status & IIC_STS_ERR)
+ && (i>0));
+
+ if (status & IIC_STS_ERR) {
+ result = IIC_NOK;
+ status = in8 (IIC_EXTSTS1);
+ /* Lost arbitration? */
+ if (status & IIC_EXTSTS_LA)
+ result = IIC_NOK_LA;
+ /* Incomplete transfer? */
+ if (status & IIC_EXTSTS_ICT)
+ result = IIC_NOK_ICT;
+ /* Transfer aborted? */
+ if (status & IIC_EXTSTS_XFRA)
+ result = IIC_NOK_XFRA;
+ } else if ( status & IIC_STS_PT) {
+ result = IIC_NOK_TOUT;
+ }
+ /* Command is reading => get buffer */
+ if ((reading) && (result == IIC_OK)) {
+ /* Are there data in buffer */
+ if (status & IIC_STS_MDBS) {
+ /*
+ even if we have data we have to wait 4OPB clocks
+ for it to hit the front of the FIFO, after that
+ we can just read. We should check XFCNT here and
+ if the FIFO is full there is no need to wait.
+ */
+ udelay (1);
+ for(j=0;j<bc;j++) {
+ ptr[tran+j] = in8(IIC_MDBUF1);
+ __asm__ volatile("eieio");
+ }
+ } else
+ result = IIC_NOK_DATA;
+ }
+ creg = 0;
+ tran+=bc;
+ if( ptr == addr && tran == cnt ) {
+ ptr = data;
+ cnt = data_len;
+ tran = 0;
+ reading = cmd_type;
+ if( reading )
+ creg = IIC_CNTL_RPST;
+ }
+ }
+ return (result);
+}
+
+int i2c_probe1 (uchar chip)
+{
+ uchar buf[1];
+
+ buf[0] = 0;
+
+ /*
+ * What is needed is to send the chip address and verify that the
+ * address was <ACK>ed (i.e. there was a chip at that address which
+ * drove the data line low).
+ */
+ return(i2c_transfer1 (1, chip << 1, 0,0, buf, 1) != 0);
+}
+
+
+int i2c_read1 (uchar chip, uint addr, int alen, uchar * buffer, int len)
+{
+ uchar xaddr[4];
+ int ret;
+
+ if ( alen > 4 ) {
+ printf ("I2C read: addr len %d not supported\n", alen);
+ return 1;
+ }
+
+ if ( alen > 0 ) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+
+
+#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
+ /*
+ * EEPROM chips that implement "address overflow" are ones
+ * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+ * address and the extra bits end up in the "chip address"
+ * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+ * four 256 byte chips.
+ *
+ * Note that we consider the length of the address field to
+ * still be one byte because the extra address bits are
+ * hidden in the chip address.
+ */
+ if( alen > 0 )
+ chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
+#endif
+ if( (ret = i2c_transfer1( 1, chip<<1, &xaddr[4-alen], alen, buffer, len )) != 0) {
+ printf( "I2c read: failed %d\n", ret);
+ return 1;
+ }
+ return 0;
+}
+
+int i2c_write1 (uchar chip, uint addr, int alen, uchar * buffer, int len)
+{
+ uchar xaddr[4];
+
+ if ( alen > 4 ) {
+ printf ("I2C write: addr len %d not supported\n", alen);
+ return 1;
+
+ }
+ if ( alen > 0 ) {
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+ }
+
+#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
+ /*
+ * EEPROM chips that implement "address overflow" are ones
+ * like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+ * address and the extra bits end up in the "chip address"
+ * bit slots. This makes a 24WC08 (1Kbyte) chip look like
+ * four 256 byte chips.
+ *
+ * Note that we consider the length of the address field to
+ * still be one byte because the extra address bits are
+ * hidden in the chip address.
+ */
+ if( alen > 0 )
+ chip |= ((addr >> (alen * 8)) & CFG_I2C_EEPROM_ADDR_OVERFLOW);
+#endif
+
+ return (i2c_transfer1( 0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0);
+}
+
+/*-----------------------------------------------------------------------
+ * Read a register
+ */
+uchar i2c_reg_read1(uchar i2c_addr, uchar reg)
+{
+ char buf;
+
+ i2c_read1(i2c_addr, reg, 1, &buf, 1);
+
+ return(buf);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a register
+ */
+void i2c_reg_write1(uchar i2c_addr, uchar reg, uchar val)
+{
+ i2c_write1(i2c_addr, reg, 1, &val, 1);
+}
+
+
+int do_i2c1_probe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int j;
+#if defined(CFG_I2C_NOPROBES)
+ int k, skip;
+#endif
+
+ puts ("Valid chip addresses:");
+ for(j = 0; j < 128; j++) {
+#if defined(CFG_I2C_NOPROBES)
+ skip = 0;
+ for (k = 0; k < sizeof(i2c_no_probes); k++){
+ if (j == i2c_no_probes[k]){
+ skip = 1;
+ break;
+ }
+ }
+ if (skip)
+ continue;
+#endif
+ if(i2c_probe1(j) == 0) {
+ printf(" %02X", j);
+ }
+ }
+ putc ('\n');
+
+#if defined(CFG_I2C_NOPROBES)
+ puts ("Excluded chip addresses:");
+ for( k = 0; k < sizeof(i2c_no_probes); k++ )
+ printf(" %02X", i2c_no_probes[k] );
+ putc ('\n');
+#endif
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ iprobe1, 1, 1, do_i2c1_probe,
+ "iprobe1 - probe to discover valid I2C chip addresses\n",
+ "\n -discover valid I2C chip addresses\n"
+);
+
+#endif
+
diff --git a/board/sandburst/common/ppc440gx_i2c.h b/board/sandburst/common/ppc440gx_i2c.h
new file mode 100644
index 0000000..e25a3171
--- /dev/null
+++ b/board/sandburst/common/ppc440gx_i2c.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2005 Sandburst Corporation
+ *
+ * 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
+ */
+
+/*
+ * Ported from i2c driver for ppc4xx by AS HARNOIS by
+ * Travis B. Sawyer
+ * Sandburst Corporation
+ */
+#include <common.h>
+#include <ppc4xx.h>
+#if defined(CONFIG_440)
+# include <440_i2c.h>
+#else
+# include <405gp_i2c.h>
+#endif
+#include <i2c.h>
+
+
+#ifdef CONFIG_HARD_I2C
+
+
+
+#define I2C_BUS1_BASE_ADDR (CFG_PERIPHERAL_BASE + 0x00000500)
+#define I2C_REGISTERS_BUS1_BASE_ADDRESS I2C_BUS1_BASE_ADDR
+#define IIC_MDBUF1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICMDBUF)
+#define IIC_SDBUF1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICSDBUF)
+#define IIC_LMADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICLMADR)
+#define IIC_HMADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICHMADR)
+#define IIC_CNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICCNTL)
+#define IIC_MDCNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICMDCNTL)
+#define IIC_STS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICSTS)
+#define IIC_EXTSTS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICEXTSTS)
+#define IIC_LSADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICLSADR)
+#define IIC_HSADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICHSADR)
+#define IIC_CLKDIV1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICCLKDIV)
+#define IIC_INTRMSK1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICINTRMSK)
+#define IIC_XFRCNT1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICXFRCNT)
+#define IIC_XTCNTLSS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICXTCNTLSS)
+#define IIC_DIRECTCNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICDIRECTCNTL)
+
+void i2c1_init (int speed, int slaveadd);
+int i2c_probe1 (uchar chip);
+int i2c_read1 (uchar chip, uint addr, int alen, uchar * buffer, int len);
+int i2c_write1 (uchar chip, uint addr, int alen, uchar * buffer, int len);
+uchar i2c_reg_read1(uchar i2c_addr, uchar reg);
+void i2c_reg_write1(uchar i2c_addr, uchar reg, uchar val);
+
+#endif
diff --git a/board/sandburst/common/sb_common.c b/board/sandburst/common/sb_common.c
new file mode 100644
index 0000000..1251bc9
--- /dev/null
+++ b/board/sandburst/common/sb_common.c
@@ -0,0 +1,451 @@
+/*
+ * Copyright (C) 2005 Sandburst Corporation
+ *
+ * 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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <spd_sdram.h>
+#include <i2c.h>
+#include "ppc440gx_i2c.h"
+#include "sb_common.h"
+
+long int fixed_sdram (void);
+
+/*************************************************************************
+ * metrobox_get_master
+ *
+ * PRI_N - active low signal. If the GPIO pin is low we are the master
+ *
+ ************************************************************************/
+int sbcommon_get_master(void)
+{
+ ppc440_gpio_regs_t *gpio_regs;
+
+ gpio_regs = (ppc440_gpio_regs_t *)CFG_GPIO_BASE;
+
+ if (gpio_regs->in & SBCOMMON_GPIO_PRI_N) {
+ return 0;
+ }
+ else {
+ return 1;
+ }
+}
+
+/*************************************************************************
+ * metrobox_secondary_present
+ *
+ * Figure out if secondary/slave board is present
+ *
+ ************************************************************************/
+int sbcommon_secondary_present(void)
+{
+ ppc440_gpio_regs_t *gpio_regs;
+
+ gpio_regs = (ppc440_gpio_regs_t *)CFG_GPIO_BASE;
+
+ if (gpio_regs->in & SBCOMMON_GPIO_SEC_PRES)
+ return 0;
+ else
+ return 1;
+}
+
+/*************************************************************************
+ * sbcommon_get_serial_number
+ *
+ * Retrieve the board serial number via the mac address in eeprom
+ *
+ ************************************************************************/
+unsigned short sbcommon_get_serial_number(void)
+{
+ unsigned char buff[0x100];
+ unsigned short sernum;
+
+ /* Get the board serial number from eeprom */
+ /* Initialize I2C */
+ i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+ /* Read 256 bytes in EEPROM */
+ i2c_read (0x50, 0, 1, buff, 0x100);
+
+ memcpy(&sernum, &buff[0xF4], 2);
+ sernum /= 32;
+
+ return (sernum);
+}
+
+/*************************************************************************
+ * sbcommon_fans
+ *
+ * Spin up fans 2 & 3 to get some air moving. OS will take care
+ * of the rest. This is mostly a precaution...
+ *
+ * Assumes i2c bus 1 is ready.
+ *
+ ************************************************************************/
+void sbcommon_fans(void)
+{
+ /*
+ * Attempt to turn on 2 of the fans...
+ * Need to go through the bridge
+ */
+ puts ("FANS: ");
+
+ /* select fan4 through the bridge */
+ i2c_reg_write1(0x73, /* addr */
+ 0x00, /* reg */
+ 0x08); /* val = bus 4 */
+
+ /* Turn on FAN 4 */
+ i2c_reg_write1(0x2e,
+ 1,
+ 0x80);
+
+ i2c_reg_write1(0x2e,
+ 0,
+ 0x19);
+
+ /* Deselect bus 4 on the bridge */
+ i2c_reg_write1(0x73,
+ 0x00,
+ 0x00);
+
+ /* select fan3 through the bridge */
+ i2c_reg_write1(0x73, /* addr */
+ 0x00, /* reg */
+ 0x04); /* val = bus 3 */
+
+ /* Turn on FAN 3 */
+ i2c_reg_write1(0x2e,
+ 1,
+ 0x80);
+
+ i2c_reg_write1(0x2e,
+ 0,
+ 0x19);
+
+ /* Deselect bus 3 on the bridge */
+ i2c_reg_write1(0x73,
+ 0x00,
+ 0x00);
+
+ /* select fan2 through the bridge */
+ i2c_reg_write1(0x73, /* addr */
+ 0x00, /* reg */
+ 0x02); /* val = bus 4 */
+
+ /* Turn on FAN 2 */
+ i2c_reg_write1(0x2e,
+ 1,
+ 0x80);
+
+ i2c_reg_write1(0x2e,
+ 0,
+ 0x19);
+
+ /* Deselect bus 2 on the bridge */
+ i2c_reg_write1(0x73,
+ 0x00,
+ 0x00);
+
+ /* select fan1 through the bridge */
+ i2c_reg_write1(0x73, /* addr */
+ 0x00, /* reg */
+ 0x01); /* val = bus 0 */
+
+ /* Turn on FAN 1 */
+ i2c_reg_write1(0x2e,
+ 1,
+ 0x80);
+
+ i2c_reg_write1(0x2e,
+ 0,
+ 0x19);
+
+ /* Deselect bus 1 on the bridge */
+ i2c_reg_write1(0x73,
+ 0x00,
+ 0x00);
+
+ puts ("on\n");
+
+ return;
+
+}
+
+/*************************************************************************
+ * initdram
+ *
+ * Initialize sdram
+ *
+ ************************************************************************/
+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;
+}
+
+
+/*************************************************************************
+ * testdram
+ *
+ *
+ ************************************************************************/
+#if defined(CFG_DRAM_TEST)
+int testdram (void)
+{
+ uint *pstart = (uint *) CFG_MEMTEST_START;
+ uint *pend = (uint *) CFG_MEMTEST_END;
+ uint *p;
+
+ printf("Testing SDRAM: ");
+ 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;
+ }
+ }
+
+ printf("OK\n");
+ 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;
+
+ /*--------------------------------------------------------------------------+
+ * The metrobox is always configured as the host & requires the
+ * PCI arbiter to be enabled.
+ *--------------------------------------------------------------------------*/
+ mfsdr(sdr_sdstp1, strap);
+ if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){
+ printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap);
+ 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
+ *
+ *
+ ************************************************************************/
+#if defined(CONFIG_PCI)
+int is_pci_host(struct pci_controller *hose)
+{
+ /* The metrobox is always configured as host. */
+ return(1);
+}
+#endif /* defined(CONFIG_PCI) */
+
+/*************************************************************************
+ * board_get_enetaddr
+ *
+ * Get the ethernet MAC address for the management ethernet from the
+ * strap EEPROM. Note that is the BASE address for the range of
+ * external ethernet MACs on the board. The base + 31 is the actual
+ * mgmt mac address.
+ *
+ ************************************************************************/
+static int macaddr_idx = 0;
+
+void board_get_enetaddr (uchar * enet)
+{
+ int i;
+ unsigned short tmp;
+ unsigned char buff[0x100], *cp;
+
+ if (0 == macaddr_idx) {
+
+ /* Initialize I2C */
+ i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+ /* Read 256 bytes in EEPROM */
+ i2c_read (0x50, 0, 1, buff, 0x100);
+
+ cp = &buff[0xF0];
+
+ for (i = 0; i < 6; i++,cp++)
+ enet[i] = *cp;
+
+ memcpy(&tmp, &enet[4], 2);
+ tmp += 31;
+ memcpy(&enet[4], &tmp, 2);
+
+ macaddr_idx++;
+ } else {
+ enet[0] = 0x02;
+ enet[1] = 0x00;
+ enet[2] = 0x00;
+ enet[3] = 0x00;
+ enet[4] = 0x00;
+ if (1 == sbcommon_get_master() ) {
+ /* Master/Primary card */
+ enet[5] = 0x01;
+ } else {
+ /* Slave/Secondary card */
+ enet [5] = 0x02;
+ }
+ }
+
+ return;
+}
+
+#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());
+}
+#endif
diff --git a/board/sandburst/common/sb_common.h b/board/sandburst/common/sb_common.h
new file mode 100644
index 0000000..8994e42
--- /dev/null
+++ b/board/sandburst/common/sb_common.h
@@ -0,0 +1,83 @@
+#ifndef __SBCOMMON_H__
+#define __SBCOMMON_H__
+/*
+ * Copyright (C) 2005 Sandburst Corporation
+ *
+ * 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 <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <spd_sdram.h>
+#include <i2c.h>
+#include "ppc440gx_i2c.h"
+
+
+
+
+/*
+ * GPIO Settings
+ */
+/* Chassis settings */
+#define SBCOMMON_GPIO_PRI_N 0x00001000 /* 0 = Chassis Master, 1 = Slave */
+#define SBCOMMON_GPIO_SEC_PRES 0x00000800 /* 1 = Other board present */
+
+/* Debug LEDs */
+#define SBCOMMON_GPIO_DBGLED_0 0x00000400
+#define SBCOMMON_GPIO_DBGLED_1 0x00000200
+#define SBCOMMON_GPIO_DBGLED_2 0x00100000
+#define SBCOMMON_GPIO_DBGLED_3 0x00000100
+
+#define SBCOMMON_GPIO_DBGLEDS (SBCOMMON_GPIO_DBGLED_0 | \
+ SBCOMMON_GPIO_DBGLED_1 | \
+ SBCOMMON_GPIO_DBGLED_2 | \
+ SBCOMMON_GPIO_DBGLED_3)
+
+#define SBCOMMON_GPIO_SYS_FAULT 0x00000080
+#define SBCOMMON_GPIO_SYS_OTEMP 0x00000040
+#define SBCOMMON_GPIO_SYS_STATUS 0x00000020
+
+#define SBCOMMON_GPIO_SYS_LEDS (SBCOMMON_GPIO_SYS_STATUS)
+
+#define SBCOMMON_GPIO_LEDS (SBCOMMON_GPIO_DBGLED_0 | \
+ SBCOMMON_GPIO_DBGLED_1 | \
+ SBCOMMON_GPIO_DBGLED_2 | \
+ SBCOMMON_GPIO_DBGLED_3 | \
+ SBCOMMON_GPIO_SYS_STATUS)
+
+typedef struct ppc440_gpio_regs {
+ volatile unsigned long out;
+ volatile unsigned long tri_state;
+ volatile unsigned long dummy[4];
+ volatile unsigned long open_drain;
+ volatile unsigned long in;
+} __attribute__((packed)) ppc440_gpio_regs_t;
+
+
+
+
+int sbcommon_get_master(void);
+int sbcommon_secondary_present(void);
+unsigned short sbcommon_get_serial_number(void);
+void sbcommon_fans(void);
+
+
+#endif /* __SBCOMMON_H__ */