diff options
Diffstat (limited to 'board/manroland/hmi1001/hmi1001.c')
| -rw-r--r-- | board/manroland/hmi1001/hmi1001.c | 317 | 
1 files changed, 317 insertions, 0 deletions
| diff --git a/board/manroland/hmi1001/hmi1001.c b/board/manroland/hmi1001/hmi1001.c new file mode 100644 index 000000000..9cbed4b8c --- /dev/null +++ b/board/manroland/hmi1001/hmi1001.c @@ -0,0 +1,317 @@ +/* + * (C) Copyright 2003-2008 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * (C) Copyright 2004 + * 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 <malloc.h> + +#ifndef CONFIG_SYS_RAMBOOT +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; +	__asm__ volatile ("sync"); + +	/* precharge all banks */ +	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; +	__asm__ volatile ("sync"); + +#if SDRAM_DDR +	/* set mode register: extended mode */ +	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE; +	__asm__ volatile ("sync"); + +	/* set mode register: reset DLL */ +	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000; +	__asm__ volatile ("sync"); +#endif + +	/* precharge all banks */ +	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; +	__asm__ volatile ("sync"); + +	/* auto refresh */ +	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; +	__asm__ volatile ("sync"); + +	/* set mode register */ +	*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE; +	__asm__ volatile ("sync"); + +	/* normal operation */ +	*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; +	__asm__ volatile ("sync"); +} +#endif + +/* + * ATTENTION: Although partially referenced initdram does NOT make real use + *	      use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE + *	      is something else than 0x00000000. + */ + +phys_size_t initdram (int board_type) +{ +	ulong dramsize = 0; +#ifndef CONFIG_SYS_RAMBOOT +	ulong test1, test2; +	uint svr, pvr; + +	/* setup SDRAM chip selects */ +	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */ +	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* disabled */ +	__asm__ volatile ("sync"); + +	/* setup config registers */ +	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; +	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; +	__asm__ volatile ("sync"); + +#if SDRAM_DDR +	/* set tap delay */ +	*(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY; +	__asm__ volatile ("sync"); +#endif + +	/* find RAM size using SDRAM CS0 only */ +	sdram_start(0); +	test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000); +	sdram_start(1); +	test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000); +	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 */ +	} + +	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ +#else /* CONFIG_SYS_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; +	} + +	/* retrieve size of memory connected to SDRAM CS1 */ +	dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF; +	if (dramsize2 >= 0x13) { +		dramsize2 = (1 << (dramsize2 - 0x13)) << 20; +	} else { +		dramsize2 = 0; +	} + +#endif /* CONFIG_SYS_RAMBOOT */ + +	/* +	 * On MPC5200B we need to set the special configuration delay in the +	 * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM +	 * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: +	 * +	 * "The SDelay should be written to a value of 0x00000004. It is +	 * required to account for changes caused by normal wafer processing +	 * parameters." +	 */ +	svr = get_svr(); +	pvr = get_pvr(); +	if ((SVR_MJREV(svr) >= 2) && +	    (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) { + +		*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04; +		__asm__ volatile ("sync"); +	} + +/*	return dramsize + dramsize2; */ +	return dramsize; +} + +int checkboard (void) +{ +	puts ("Board: HMI1001\n"); +	return 0; +} + +#ifdef CONFIG_PREBOOT + +static uchar kbd_magic_prefix[]		= "key_magic"; +static uchar kbd_command_prefix[]	= "key_cmd"; + +#define S1_ROT	0xf0 +#define S2_Q	0x40 +#define S2_M	0x20 + +struct kbd_data_t { +	char s1; +	char s2; +}; + +struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data) +{ +	kbd_data->s1 = *((volatile uchar*)(CONFIG_SYS_STATUS1_BASE)); +	kbd_data->s2 = *((volatile uchar*)(CONFIG_SYS_STATUS2_BASE)); + +	return kbd_data; +} + +static int compare_magic (const struct kbd_data_t *kbd_data, char *str) +{ +	char s1 = str[0]; +	char s2; + +	if (s1 >= '0' && s1 <= '9') +		s1 -= '0'; +	else if (s1 >= 'a' && s1 <= 'f') +		s1 = s1 - 'a' + 10; +	else if (s1 >= 'A' && s1 <= 'F') +		s1 = s1 - 'A' + 10; +	else +		return -1; + +	if (((S1_ROT & kbd_data->s1) >> 4) != s1) +		return -1; + +	s2 = (S2_Q | S2_M) & kbd_data->s2; + +	switch (str[1]) { +	case 'q': +	case 'Q': +		if (s2 == S2_Q) +			return -1; +		break; +	case 'm': +	case 'M': +		if (s2 == S2_M) +			return -1; +		break; +	case '\0': +		if (s2 == (S2_Q | S2_M)) +			return 0; +	default: +		return -1; +	} + +	if (str[2]) +		return -1; + +	return 0; +} + +static char *key_match (const struct kbd_data_t *kbd_data) +{ +	char magic[sizeof (kbd_magic_prefix) + 1]; +	char *suffix; +	char *kbd_magic_keys; + +	/* +	 * The following string defines the characters that can be appended +	 * to "key_magic" to form the names of environment variables that +	 * hold "magic" key codes, i. e. such key codes that can cause +	 * pre-boot actions. If the string is empty (""), then only +	 * "key_magic" is checked (old behaviour); the string "125" causes +	 * checks for "key_magic1", "key_magic2" and "key_magic5", etc. +	 */ +	if ((kbd_magic_keys = getenv ("magic_keys")) == NULL) +		kbd_magic_keys = ""; + +	/* loop over all magic keys; +	 * use '\0' suffix in case of empty string +	 */ +	for (suffix = kbd_magic_keys; *suffix || +		     suffix == kbd_magic_keys; ++suffix) { +		sprintf (magic, "%s%c", kbd_magic_prefix, *suffix); + +		if (compare_magic(kbd_data, getenv(magic)) == 0) { +			char cmd_name[sizeof (kbd_command_prefix) + 1]; +			char *cmd; + +			sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix); +			cmd = getenv (cmd_name); + +			return (cmd); +		} +	} + +	return (NULL); +} + +#endif /* CONFIG_PREBOOT */ + +int misc_init_r (void) +{ +#ifdef CONFIG_PREBOOT +	struct kbd_data_t kbd_data; +	/* Decode keys */ +	char *str = strdup (key_match (get_keys (&kbd_data))); +	/* Set or delete definition */ +	setenv ("preboot", str); +	free (str); +#endif /* CONFIG_PREBOOT */ + +	return 0; +} + +int board_early_init_r (void) +{ +	*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ +	*(vu_long *)MPC5XXX_BOOTCS_START = +	*(vu_long *)MPC5XXX_CS0_START = START_REG(CONFIG_SYS_FLASH_BASE); +	*(vu_long *)MPC5XXX_BOOTCS_STOP = +	*(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE); +	return 0; +} +#ifdef	CONFIG_PCI +static struct pci_controller hose; + +extern void pci_mpc5xxx_init(struct pci_controller *); + +void pci_init_board(void) +{ +	pci_mpc5xxx_init(&hose); +} +#endif |