diff options
Diffstat (limited to 'board/sandburst/common')
| -rwxr-xr-x | board/sandburst/common/flash.c | 512 | ||||
| -rwxr-xr-x | board/sandburst/common/ppc440gx_i2c.c | 512 | ||||
| -rwxr-xr-x | board/sandburst/common/ppc440gx_i2c.h | 64 | ||||
| -rwxr-xr-x | board/sandburst/common/sb_common.c | 451 | ||||
| -rwxr-xr-x | board/sandburst/common/sb_common.h | 76 |
5 files changed, 1615 insertions, 0 deletions
diff --git a/board/sandburst/common/flash.c b/board/sandburst/common/flash.c new file mode 100755 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 100755 index 0000000..859dd7a --- /dev/null +++ b/board/sandburst/common/ppc440gx_i2c.c @@ -0,0 +1,512 @@ +/* + * 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) +{ + uchar buf; + + i2c_read1(i2c_addr, reg, 1, &buf, (uchar)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 /* CONFIG_I2C_BUS1 */ diff --git a/board/sandburst/common/ppc440gx_i2c.h b/board/sandburst/common/ppc440gx_i2c.h new file mode 100755 index 0000000..cd4fc86 --- /dev/null +++ b/board/sandburst/common/ppc440gx_i2c.h @@ -0,0 +1,64 @@ +/* + * 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 /* CONFIG_HARD_I2C */ diff --git a/board/sandburst/common/sb_common.c b/board/sandburst/common/sb_common.c new file mode 100755 index 0000000..3530416 --- /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 100755 index 0000000..888e4f0 --- /dev/null +++ b/board/sandburst/common/sb_common.h @@ -0,0 +1,76 @@ +#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__ */ |