diff options
Diffstat (limited to 'board/mpl/pati/cmd_pati.c')
| -rw-r--r-- | board/mpl/pati/cmd_pati.c | 451 |
1 files changed, 451 insertions, 0 deletions
diff --git a/board/mpl/pati/cmd_pati.c b/board/mpl/pati/cmd_pati.c new file mode 100644 index 0000000..cdab286 --- /dev/null +++ b/board/mpl/pati/cmd_pati.c @@ -0,0 +1,451 @@ +/* + * (C) Copyright 2001 + * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch + * + * 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 + * + * Adapted for PATI + */ + +#include <common.h> +#include <command.h> +#define PLX9056_LOC +#include "plx9056.h" +#include "pati.h" +#include "pci_eeprom.h" + +extern void show_pld_regs(void); +extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +extern void user_led0(int led_on); +extern void user_led1(int led_on); + +/* ------------------------------------------------------------------------- */ +#if defined(CFG_PCI_CON_DEVICE) +extern void pci_con_disc(void); +extern void pci_con_connect(void); +#endif + +/****************************************************************************** + * Eeprom Support + ******************************************************************************/ +unsigned long get32(unsigned long addr) +{ + unsigned long *p=(unsigned long *)addr; + return *p; +} + +void set32(unsigned long addr,unsigned long data) +{ + unsigned long *p=(unsigned long *)addr; + *p=data; +} + +#define PCICFG_GET_REG(x) (get32((x) + PCI_CONFIG_BASE)) +#define PCICFG_SET_REG(x,y) (set32((x) + PCI_CONFIG_BASE,(y))) + + +/****************************************************************************** + * reload_pci_eeprom + ******************************************************************************/ + +static void reload_pci_eeprom(void) +{ + unsigned long reg; + /* Set Bit 29 and clear it again */ + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + udelay(1); + /* set it*/ + reg|=(1<<29); + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + /* EECLK @ 33MHz = 125kHz + * -> extra long load = 32 * 16bit = 512Bit @ 125kHz = 4.1msec + * use 20msec + */ + udelay(20000); /* wait 20ms */ + reg &= ~(1<<29); /* set it low */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + udelay(1); /* wait some time */ +} + +/****************************************************************************** + * clock_pci_eeprom + ******************************************************************************/ + +static void clock_pci_eeprom(void) +{ + unsigned long reg; + /* clock is low, data is valid */ + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + udelay(1); + /* set clck high */ + reg|=(1<<24); + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + udelay(1); /* wait some time */ + reg &= ~(1<<24); /* set clock low */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + udelay(1); /* wait some time */ +} + +/****************************************************************************** + * send_pci_eeprom_cmd + ******************************************************************************/ +static void send_pci_eeprom_cmd(unsigned long cmd, unsigned char len) +{ + unsigned long reg; + int i; + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + /* Clear all EEPROM bits */ + reg &= ~(0xF << 24); + /* Toggle EEPROM's Chip select to get it out of Shift Register Mode */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + udelay(1); /* wait some time */ + /* Enable EEPROM Chip Select */ + reg |= (1 << 25); + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + /* Send EEPROM command - one bit at a time */ + for (i = (int)(len-1); i >= 0; i--) { + /* Check if current bit is 0 or 1 */ + if (cmd & (1 << i)) + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,(reg | (1<<26))); + else + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg); + clock_pci_eeprom(); + } +} + +/****************************************************************************** + * write_pci_eeprom_offs + ******************************************************************************/ +static void write_pci_eeprom_offs(unsigned short offset, unsigned short value) +{ + unsigned long reg; + int bitpos, cmdshft, cmdlen, timeout; + /* we're using the Eeprom 93CS66 */ + cmdshft = 2; + cmdlen = EE66_CMD_LEN; + /* Send Write_Enable command to EEPROM */ + send_pci_eeprom_cmd((EE_WREN << cmdshft),cmdlen); + /* Send EEPROM Write command and offset to EEPROM */ + send_pci_eeprom_cmd((EE_WRITE << cmdshft) | (offset / 2),cmdlen); + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + /* Clear all EEPROM bits */ + reg &= ~(0xF << 24); + /* Make sure EEDO Input is disabled for some PLX chips */ + reg &= ~(1 << 31); + /* Enable EEPROM Chip Select */ + reg |= (1 << 25); + /* Write 16-bit value to EEPROM - one bit at a time */ + for (bitpos = 15; bitpos >= 0; bitpos--) { + /* Get bit value and shift into result */ + if (value & (1 << bitpos)) + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,(reg | (1<<26))); + else + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg ); + clock_pci_eeprom(); + } /* for */ + /* Deselect Chip */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg & ~(1 << 25)); + /* Re-select Chip */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg | (1 << 25)); + /* A small delay is needed to let EEPROM complete */ + timeout = 0; + do { + udelay(10); + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + timeout++; + } while (((reg & (1 << 27)) == 0) && timeout < 20000); + /* Send Write_Disable command to EEPROM */ + send_pci_eeprom_cmd((EE_WDS << cmdshft),cmdlen); + /* Clear Chip Select and all other EEPROM bits */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg & ~(0xF << 24)); +} + + +/****************************************************************************** + * read_pci_eeprom_offs + ******************************************************************************/ +static void read_pci_eeprom_offs(unsigned short offset, unsigned short *pvalue) +{ + unsigned long reg; + int bitpos, cmdshft, cmdlen; + /* we're using the Eeprom 93CS66 */ + cmdshft = 2; + cmdlen = EE66_CMD_LEN; + /* Send EEPROM read command and offset to EEPROM */ + send_pci_eeprom_cmd((EE_READ << cmdshft) | (offset / 2),cmdlen); + /* Set EEPROM write output bit */ + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + /* Set EEDO Input enable */ + reg |= (1 << 31); + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg | (1 << 26)); + /* Get 16-bit value from EEPROM - one bit at a time */ + for (bitpos = 0; bitpos < 16; bitpos++) { + clock_pci_eeprom(); + udelay(10); + reg=PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT); + /* Get bit value and shift into result */ + if (reg & (1 << 27)) + *pvalue = (unsigned short)((*pvalue << 1) | 1); + else + *pvalue = (unsigned short)(*pvalue << 1); + } + /* Clear EEDO Input enable */ + reg &= ~(1 << 31); + /* Clear Chip Select and all other EEPROM bits */ + PCICFG_SET_REG(PCI9056_EEPROM_CTRL_STAT,reg & ~(0xF << 24)); +} + + +/****************************************************************************** + * EEPROM read/writes +******************************************************************************/ + +#undef EEPROM_DBG +static int pati_pci_eeprom_erase(void) +{ + int i; + printf("Erasing EEPROM "); + for( i=0; i < PATI_EEPROM_LAST_OFFSET; i+=2) { + write_pci_eeprom_offs(i,0xffff); + if((i%0x10)) + printf("."); + } + printf("\nDone\n"); + return 0; +} + +static int pati_pci_eeprom_prg(void) +{ + int i; + i=0; + printf("Programming EEPROM "); + while(pati_eeprom[i].offset<0xffff) { + write_pci_eeprom_offs(pati_eeprom[i].offset,pati_eeprom[i].value); + #ifdef EEPROM_DBG + printf("0x%04X: 0x%04X\n",pati_eeprom[i].offset, pati_eeprom[i].value); + #else + if((i%0x10)) + printf("."); + #endif + i++; + } + printf("\nDone\n"); + return 0; +} + +static int pati_pci_eeprom_write(unsigned short offset, unsigned long addr, unsigned short size) +{ + int i; + unsigned short value; + unsigned short *buffer =(unsigned short *)addr; + if((offset + size) > PATI_EEPROM_LAST_OFFSET) { + size = PATI_EEPROM_LAST_OFFSET - offset; + } + printf("Write To EEPROM from 0x%lX to 0x%X 0x%X words\n", addr, offset, size/2); + for( i = offset; i< (offset + size); i+=2) { + value = *buffer++; + write_pci_eeprom_offs(i,value); + #ifdef EEPROM_DBG + printf("0x%04X: 0x%04X\n",i, value); + #else + if((i%0x10)) + printf("."); + #endif + } + printf("\nDone\n"); + return 0; +} + +static int pati_pci_eeprom_read(unsigned short offset, unsigned long addr, unsigned short size) +{ + int i; + unsigned short value; + unsigned short *buffer =(unsigned short *)addr; + if((offset + size) > PATI_EEPROM_LAST_OFFSET) { + size = PATI_EEPROM_LAST_OFFSET - offset; + } + printf("Read from EEPROM from 0x%X to 0x%lX 0x%X words\n", offset, addr, size/2); + for( i = offset; i< (offset + size); i+=2) { + read_pci_eeprom_offs(i,&value); + *buffer++=value; + #ifdef EEPROM_DBG + printf("0x%04X: 0x%04X\n",i, value); + #else + if((i%0x10)) + printf("."); + #endif + } + printf("\nDone\n"); + return 0; +} + + + +/****************************************************************************** + * PCI Bridge Registers Dump +*******************************************************************************/ +static void display_pci_regs(void) +{ + printf(" PCI9056_SPACE0_RANGE %08lX\n",PCICFG_GET_REG(PCI9056_SPACE0_RANGE)); + printf(" PCI9056_SPACE0_REMAP %08lX\n",PCICFG_GET_REG(PCI9056_SPACE0_REMAP)); + printf(" PCI9056_LOCAL_DMA_ARBIT %08lX\n",PCICFG_GET_REG(PCI9056_LOCAL_DMA_ARBIT)); + printf(" PCI9056_ENDIAN_DESC %08lX\n",PCICFG_GET_REG(PCI9056_ENDIAN_DESC)); + printf(" PCI9056_EXP_ROM_RANGE %08lX\n",PCICFG_GET_REG(PCI9056_EXP_ROM_RANGE)); + printf(" PCI9056_EXP_ROM_REMAP %08lX\n",PCICFG_GET_REG(PCI9056_EXP_ROM_REMAP)); + printf(" PCI9056_SPACE0_ROM_DESC %08lX\n",PCICFG_GET_REG(PCI9056_SPACE0_ROM_DESC)); + printf(" PCI9056_DM_RANGE %08lX\n",PCICFG_GET_REG(PCI9056_DM_RANGE)); + printf(" PCI9056_DM_MEM_BASE %08lX\n",PCICFG_GET_REG(PCI9056_DM_MEM_BASE)); + printf(" PCI9056_DM_IO_BASE %08lX\n",PCICFG_GET_REG(PCI9056_DM_IO_BASE)); + printf(" PCI9056_DM_PCI_MEM_REMAP %08lX\n",PCICFG_GET_REG(PCI9056_DM_PCI_MEM_REMAP)); + printf(" PCI9056_DM_PCI_IO_CONFIG %08lX\n",PCICFG_GET_REG(PCI9056_DM_PCI_IO_CONFIG)); + printf(" PCI9056_SPACE1_RANGE %08lX\n",PCICFG_GET_REG(PCI9056_SPACE1_RANGE)); + printf(" PCI9056_SPACE1_REMAP %08lX\n",PCICFG_GET_REG(PCI9056_SPACE1_REMAP)); + printf(" PCI9056_SPACE1_DESC %08lX\n",PCICFG_GET_REG(PCI9056_SPACE1_DESC)); + printf(" PCI9056_DM_DAC %08lX\n",PCICFG_GET_REG(PCI9056_DM_DAC)); + printf(" PCI9056_MAILBOX0 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX0)); + printf(" PCI9056_MAILBOX1 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX1)); + printf(" PCI9056_MAILBOX2 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX2)); + printf(" PCI9056_MAILBOX3 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX3)); + printf(" PCI9056_MAILBOX4 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX4)); + printf(" PCI9056_MAILBOX5 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX5)); + printf(" PCI9056_MAILBOX6 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX6)); + printf(" PCI9056_MAILBOX7 %08lX\n",PCICFG_GET_REG(PCI9056_MAILBOX7)); + printf(" PCI9056_PCI_TO_LOC_DBELL %08lX\n",PCICFG_GET_REG(PCI9056_PCI_TO_LOC_DBELL)); + printf(" PCI9056_LOC_TO_PCI_DBELL %08lX\n",PCICFG_GET_REG(PCI9056_LOC_TO_PCI_DBELL)); + printf(" PCI9056_INT_CTRL_STAT %08lX\n",PCICFG_GET_REG(PCI9056_INT_CTRL_STAT)); + printf(" PCI9056_EEPROM_CTRL_STAT %08lX\n",PCICFG_GET_REG(PCI9056_EEPROM_CTRL_STAT)); + printf(" PCI9056_PERM_VENDOR_ID %08lX\n",PCICFG_GET_REG(PCI9056_PERM_VENDOR_ID)); + printf(" PCI9056_REVISION_ID %08lX\n",PCICFG_GET_REG(PCI9056_REVISION_ID)); + printf(" \n"); + printf(" PCI9056_VENDOR_ID %08lX\n",PCICFG_GET_REG(PCI9056_VENDOR_ID)); + printf(" PCI9056_COMMAND %08lX\n",PCICFG_GET_REG(PCI9056_COMMAND)); + printf(" PCI9056_REVISION %08lX\n",PCICFG_GET_REG(PCI9056_REVISION)); + printf(" PCI9056_CACHE_SIZE %08lX\n",PCICFG_GET_REG(PCI9056_CACHE_SIZE)); + printf(" PCI9056_RTR_BASE %08lX\n",PCICFG_GET_REG(PCI9056_RTR_BASE)); + printf(" PCI9056_RTR_IO_BASE %08lX\n",PCICFG_GET_REG(PCI9056_RTR_IO_BASE)); + printf(" PCI9056_LOCAL_BASE0 %08lX\n",PCICFG_GET_REG(PCI9056_LOCAL_BASE0)); + printf(" PCI9056_LOCAL_BASE1 %08lX\n",PCICFG_GET_REG(PCI9056_LOCAL_BASE1)); + printf(" PCI9056_UNUSED_BASE1 %08lX\n",PCICFG_GET_REG(PCI9056_UNUSED_BASE1)); + printf(" PCI9056_UNUSED_BASE2 %08lX\n",PCICFG_GET_REG(PCI9056_UNUSED_BASE2)); + printf(" PCI9056_CIS_PTR %08lX\n",PCICFG_GET_REG(PCI9056_CIS_PTR)); + printf(" PCI9056_SUB_ID %08lX\n",PCICFG_GET_REG(PCI9056_SUB_ID)); + printf(" PCI9056_EXP_ROM_BASE %08lX\n",PCICFG_GET_REG(PCI9056_EXP_ROM_BASE)); + printf(" PCI9056_CAP_PTR %08lX\n",PCICFG_GET_REG(PCI9056_CAP_PTR)); + printf(" PCI9056_INT_LINE %08lX\n",PCICFG_GET_REG(PCI9056_INT_LINE)); + printf(" PCI9056_PM_CAP_ID %08lX\n",PCICFG_GET_REG(PCI9056_PM_CAP_ID)); + printf(" PCI9056_PM_CSR %08lX\n",PCICFG_GET_REG(PCI9056_PM_CSR)); + printf(" PCI9056_HS_CAP_ID %08lX\n",PCICFG_GET_REG(PCI9056_HS_CAP_ID)); + printf(" PCI9056_VPD_CAP_ID %08lX\n",PCICFG_GET_REG(PCI9056_VPD_CAP_ID)); + printf(" PCI9056_VPD_DATA %08lX\n",PCICFG_GET_REG(PCI9056_VPD_DATA)); +} + + +int do_pati(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (strcmp(argv[1], "info") == 0) + { + show_pld_regs(); + return 0; + } + if (strcmp(argv[1], "pci") == 0) + { + display_pci_regs(); + return 0; + } + if (strcmp(argv[1], "led") == 0) + { + int led_nr,led_on; + led_nr = (int)simple_strtoul(argv[2], NULL, 10); + led_on = (int)simple_strtoul(argv[3], NULL, 10); + if(!led_nr) + user_led0(led_on); + else + user_led1(led_on); + return 0; + } +#if defined(CFG_PCI_CON_DEVICE) + if (strcmp(argv[1], "con") == 0) { + pci_con_connect(); + return 0; + } + if (strcmp(argv[1], "disc") == 0) { + pci_con_disc(); + return 0; + } +#endif + if (strcmp(argv[1], "eeprom") == 0) { + unsigned long addr; + int size, offset; + offset = 0; + size = PATI_EEPROM_LAST_OFFSET; + if(argc>2) { + if(argc>3) { + addr = simple_strtoul(argv[3], NULL, 16); + if(argc>4) + offset = (int) simple_strtoul(argv[4], NULL, 16); + if(argc>5) + size = (int) simple_strtoul(argv[5], NULL, 16); + if (strcmp(argv[2], "read") == 0) { + return (pati_pci_eeprom_read(offset, addr, size)); + } + if (strcmp(argv[2], "write") == 0) { + return (pati_pci_eeprom_write(offset, addr, size)); + } + } + if (strcmp(argv[2], "prg") == 0) { + return (pati_pci_eeprom_prg()); + } + if (strcmp(argv[2], "era") == 0) { + return (pati_pci_eeprom_erase()); + } + if (strcmp(argv[2], "reload") == 0) { + reload_pci_eeprom(); + return 0; + } + + + } + } + + return (do_mplcommon(cmdtp, flag, argc, argv)); +} + +U_BOOT_CMD( + pati, 8, 1, do_pati, + "pati - PATI specific Cmds\n", + "info - displays board information\n" + "pati pci - displays PCI registers\n" + "pati led <nr> <on> \n" + " - switch LED <nr> <on>\n" + "pati flash mem [SrcAddr]\n" + " - updates U-Boot with image in memory\n" + "pati eeprom <cmd> - PCI EEPROM sub-system\n" + " read <addr> <offset> <size>\n" + " - read PCI EEPROM to <addr> from <offset> <size> words\n" + " write <addr> <offset> <size>\n" + " - write PCI EEPROM from <addr> to <offset> <size> words\n" + " prg - programm PCI EEPROM with default values\n" + " era - erase PCI EEPROM (write all word to 0xffff)\n" + " reload- Reload PCI Bridge with EEPROM Values\n" + " NOTE: <addr> must start on word boundary\n" + " <offset> and <size> must be even byte values\n" +); + +/* ------------------------------------------------------------------------- */ |