diff options
Diffstat (limited to 'board/cds/common')
| -rw-r--r-- | board/cds/common/cadmus.c | 95 | ||||
| -rw-r--r-- | board/cds/common/cadmus.h | 54 | ||||
| -rw-r--r-- | board/cds/common/eeprom.c | 60 | ||||
| -rw-r--r-- | board/cds/common/eeprom.h | 50 |
4 files changed, 259 insertions, 0 deletions
diff --git a/board/cds/common/cadmus.c b/board/cds/common/cadmus.c new file mode 100644 index 000000000..5f86de5af --- /dev/null +++ b/board/cds/common/cadmus.c @@ -0,0 +1,95 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <common.h> + + +/* + * CADMUS Board System Registers + */ +#ifndef CFG_CADMUS_BASE_REG +#define CFG_CADMUS_BASE_REG (CADMUS_BASE_ADDR + 0x4000) +#endif + +typedef struct cadmus_reg { + u_char cm_ver; /* Board version */ + u_char cm_csr; /* General control/status */ + u_char cm_rst; /* Reset control */ + u_char cm_hsclk; /* High speed clock */ + u_char cm_hsxclk; /* High speed clock extended */ + u_char cm_led; /* LED data */ + u_char cm_pci; /* PCI control/status */ + u_char cm_dma; /* DMA control */ + u_char cm_reserved[248]; /* Total 256 bytes */ +} cadmus_reg_t; + + +unsigned int +get_board_version(void) +{ + volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CFG_CADMUS_BASE_REG; + + return cadmus->cm_ver; +} + + +unsigned long +get_clock_freq(void) +{ + volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CFG_CADMUS_BASE_REG; + + uint pci1_speed = (cadmus->cm_pci >> 2) & 0x3; /* PSPEED in [4:5] */ + + if (pci1_speed == 0) { + return 33000000; + } else if (pci1_speed == 1) { + return 66000000; + } else { + /* Really, unknown. Be safe? */ + return 33000000; + } +} + + +unsigned int +get_pci_slot(void) +{ + volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CFG_CADMUS_BASE_REG; + + /* + * PCI slot in USER bits CSR[6:7] by convention. + */ + return ((cadmus->cm_csr >> 6) & 0x3) + 1; +} + + +unsigned int +get_pci_dual(void) +{ + volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CFG_CADMUS_BASE_REG; + + /* + * PCI DUAL in CM_PCI[3] + */ + return cadmus->cm_pci & 0x10; +} diff --git a/board/cds/common/cadmus.h b/board/cds/common/cadmus.h new file mode 100644 index 000000000..217ea6425 --- /dev/null +++ b/board/cds/common/cadmus.h @@ -0,0 +1,54 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * + * 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 + */ + +#ifndef __CADMUS_H_ +#define __CADMUS_H_ + + +/* + * CADMUS Board System Register interface. + */ + +/* + * Returns board version register. + */ +extern unsigned int get_board_version(void); + +/* + * Returns either 33000000 or 66000000 as the SYS_CLK_FREQ. + */ +extern unsigned long get_clock_freq(void); + + +/* + * Returns 1 - 4, as found in the USER CSR[6:7] bits. + */ +extern unsigned int get_pci_slot(void); + + +/* + * Returns PCI DUAL as found in CM_PCI[3]. + */ +extern unsigned int get_pci_dual(void); + + +#endif /* __CADMUS_H_ */ diff --git a/board/cds/common/eeprom.c b/board/cds/common/eeprom.c new file mode 100644 index 000000000..5034e0ca2 --- /dev/null +++ b/board/cds/common/eeprom.c @@ -0,0 +1,60 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <common.h> +#include <i2c.h> + +#include "eeprom.h" + + +typedef struct { + char idee_pcbid[4]; /* "CCID" for CDC v1.X */ + u8 idee_major; + u8 idee_minor; + char idee_serial[10]; + char idee_errata[2]; + char idee_date[8]; /* yyyymmdd */ + /* The rest of the EEPROM space is reserved */ +} id_eeprom_t; + + +unsigned int +get_cpu_board_revision(void) +{ + uint major = 0; + uint minor = 0; + + id_eeprom_t id_eeprom; + + i2c_read(CFG_I2C_EEPROM_ADDR, 0, 2, + (uchar *) &id_eeprom, sizeof(id_eeprom)); + + major = id_eeprom.idee_major; + minor = id_eeprom.idee_minor; + + if (major == 0xff && minor == 0xff) { + major = minor = 0; + } + + return MPC85XX_CPU_BOARD_REV(major,minor); +} diff --git a/board/cds/common/eeprom.h b/board/cds/common/eeprom.h new file mode 100644 index 000000000..12a078904 --- /dev/null +++ b/board/cds/common/eeprom.h @@ -0,0 +1,50 @@ +/* + * Copyright 2004 Freescale Semiconductor. + * + * 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 + */ + +#ifndef __EEPROM_H_ +#define __EEPROM_H_ + + +/* + * EEPROM Board System Register interface. + */ + + +/* + * CPU Board Revision + */ +#define MPC85XX_CPU_BOARD_REV(maj, min) ((((maj)&0xff) << 8) | ((min) & 0xff)) +#define MPC85XX_CPU_BOARD_MAJOR(rev) (((rev) >> 8) & 0xff) +#define MPC85XX_CPU_BOARD_MINOR(rev) ((rev) & 0xff) + +#define MPC85XX_CPU_BOARD_REV_UNKNOWN MPC85XX_CPU_BOARD_REV(0,0) +#define MPC85XX_CPU_BOARD_REV_1_0 MPC85XX_CPU_BOARD_REV(1,0) +#define MPC85XX_CPU_BOARD_REV_1_1 MPC85XX_CPU_BOARD_REV(1,1) + +/* + * Returns CPU board revision register as a 16-bit value with + * the Major in the high byte, and Minor in the low byte. + */ +extern unsigned int get_cpu_board_revision(void); + + +#endif /* __CADMUS_H_ */ |