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Diffstat (limited to 'board/cm1_qp1/cm1_qp1.c')
| -rw-r--r-- | board/cm1_qp1/cm1_qp1.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/board/cm1_qp1/cm1_qp1.c b/board/cm1_qp1/cm1_qp1.c new file mode 100644 index 0000000..b49298f --- /dev/null +++ b/board/cm1_qp1/cm1_qp1.c @@ -0,0 +1,222 @@ +/* + * (C) Copyright 2003-2007 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * (C) Copyright 2004-2005 + * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de + * + * 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 <mpc5xxx.h> +#include <pci.h> +#include <asm/processor.h> +#include <i2c.h> +#ifdef CONFIG_OF_FLAT_TREE +#include <ft_build.h> +#endif /* CONFIG_OF_FLAT_TREE */ + +#include "fwupdate.h" + +#ifndef CFG_RAMBOOT +/* + * Helper function to initialize SDRAM controller. + */ +static void sdram_start(int hi_addr) +{ + long hi_addr_bit = hi_addr ? 0x01000000 : 0; + + /* unlock mode register */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | + hi_addr_bit; + + /* precharge all banks */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | + hi_addr_bit; + + /* auto refresh */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | + hi_addr_bit; + + /* auto refresh, second time */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | + hi_addr_bit; + + /* set mode register */ + *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE; + + /* normal operation */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; +} +#endif /* CFG_RAMBOOT */ + +/* + * Initalize SDRAM - configure SDRAM controller, detect memory size. + */ +long int initdram(int board_type) +{ + ulong dramsize = 0; +#ifndef CFG_RAMBOOT + ulong test1, test2; + + /* configure SDRAM start/end for detection */ + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */ + + /* setup config registers */ + *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; + *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; + + sdram_start(0); + test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); + sdram_start(1); + test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); + if (test1 > test2) { + sdram_start(0); + dramsize = test1; + } else + dramsize = test2; + + /* memory smaller than 1MB is impossible */ + if (dramsize < (1 << 20)) + dramsize = 0; + + /* set SDRAM CS0 size according to the amount of RAM found */ + if (dramsize > 0) { + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + + __builtin_ffs(dramsize >> 20) - 1; + } else + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */ +#else /* CFG_RAMBOOT */ + /* retrieve size of memory connected to SDRAM CS0 */ + dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF; + if (dramsize >= 0x13) + dramsize = (1 << (dramsize - 0x13)) << 20; + else + dramsize = 0; +#endif /* CFG_RAMBOOT */ + + /* + * On MPC5200B we need to set the special configuration delay in the + * DDR controller. Refer to chapter 8.7.5 SDelay--MBAR + 0x0190 of + * the MPC5200B User's Manual. + */ + *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04; + __asm__ volatile ("sync"); + + return dramsize; +} + + +int checkboard(void) +{ + puts("Board: CM1.QP1\n"); + return 0; +} + + +int board_early_init_r(void) +{ + /* + * Now, when we are in RAM, enable flash write access for detection + * process. Note that CS_BOOT cannot be cleared when executing in + * flash. + */ + *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ + return 0; +} + + +#ifdef CONFIG_POST +int post_hotkeys_pressed(void) +{ + return 0; +} +#endif /* CONFIG_POST */ + + +#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) +void post_word_store(ulong a) +{ + vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE); + *save_addr = a; +} + + +ulong post_word_load(void) +{ + vu_long *save_addr = (vu_long *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE); + return *save_addr; +} +#endif /* CONFIG_POST || CONFIG_LOGBUFFER */ + + +#ifdef CONFIG_MISC_INIT_R +int misc_init_r(void) +{ +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + uchar buf[6]; + char str[18]; + + /* Read ethaddr from EEPROM */ + if (i2c_read(CFG_I2C_EEPROM, CONFIG_MAC_OFFSET, 2, buf, 6) == 0) { + sprintf(str, "%02X:%02X:%02X:%02X:%02X:%02X", + buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); + /* Check if MAC addr is owned by Schindler */ + if (strstr(str, "00:06:C3") != str) { + printf(LOG_PREFIX "Warning - Illegal MAC address (%s)" + " in EEPROM.\n", str); + printf(LOG_PREFIX "Using MAC from environment\n"); + } else { + printf(LOG_PREFIX "Using MAC (%s) from I2C EEPROM\n", + str); + setenv("ethaddr", str); + } + } else { + printf(LOG_PREFIX "Warning - Unable to read MAC from I2C" + " device at address %02X:%04X\n", CFG_I2C_EEPROM, + CONFIG_MAC_OFFSET); + printf(LOG_PREFIX "Using MAC from environment\n"); + } + return 0; +#endif /* defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) */ +} +#endif /* CONFIG_MISC_INIT_R */ + + +#ifdef CONFIG_LAST_STAGE_INIT +int last_stage_init(void) +{ +#ifdef CONFIG_USB_STORAGE + cm1_fwupdate(); +#endif /* CONFIG_USB_STORAGE */ + return 0; +} +#endif /* CONFIG_LAST_STAGE_INIT */ + + +#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +} +#endif /* defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) */ |