/* * (C) Copyright 2003-2004 * 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 * * (C) Copyright 2006 * Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.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> #ifdef CONFIG_VIDEO_SM501 #include <sm501.h> #endif #if defined(CONFIG_MPC5200_DDR) #include "mt46v16m16-75.h" #else #include "mt48lc16m16a2-75.h" #endif #ifdef CONFIG_RTC_MPC5200 #include <rtc.h> #endif #ifdef CONFIG_PS2MULT void ps2mult_early_init(void); #endif #ifndef CFG_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 CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE * is something else than 0x00000000. */ #if defined(CONFIG_MPC5200) phys_size_t initdram (int board_type) { ulong dramsize = 0; ulong dramsize2 = 0; #ifndef CFG_RAMBOOT ulong test1, test2; /* 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 *)CFG_SDRAM_BASE, 0x20000000); sdram_start(1); test2 = get_ram_size((long *)CFG_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 */ } /* let SDRAM CS1 start right after CS0 */ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001c; /* 512MB */ /* find RAM size using SDRAM CS1 only */ sdram_start(0); test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x20000000); sdram_start(1); test2 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x20000000); if (test1 > test2) { sdram_start(0); dramsize2 = test1; } else { dramsize2 = test2; } /* memory smaller than 1MB is impossible */ if (dramsize2 < (1 << 20)) { dramsize2 = 0; } /* set SDRAM CS1 size according to the amount of RAM found */ if (dramsize2 > 0) { *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1); } else { *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* 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; } /* 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 /* CFG_RAMBOOT */ return dramsize; } #elif defined(CONFIG_MGT5100) phys_size_t initdram (int board_type) { ulong dramsize = 0; #ifndef CFG_RAMBOOT ulong test1, test2; /* setup and enable SDRAM chip selects */ *(vu_long *)MPC5XXX_SDRAM_START = 0x00000000; *(vu_long *)MPC5XXX_SDRAM_STOP = 0x0000ffff; /* 2G */ *(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */ __asm__ volatile ("sync"); /* setup config registers */ *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; /* address select register */ *(vu_long *)MPC5XXX_SDRAM_XLBSEL = SDRAM_ADDRSEL; __asm__ volatile ("sync"); /* find RAM size */ sdram_start(0); test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); sdram_start(1); test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); if (test1 > test2) { sdram_start(0); dramsize = test1; } else { dramsize = test2; } /* set SDRAM end address according to size */ *(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15); #else /* CFG_RAMBOOT */ /* Retrieve amount of SDRAM available */ dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15); #endif /* CFG_RAMBOOT */ return dramsize; } #else #error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined #endif int checkboard (void) { #if defined (CONFIG_TQM5200) puts ("Board: TQM5200 (TQ-Components GmbH)\n"); #endif #if defined (CONFIG_BC3450) puts ("Dev: GERSYS BC3450\n"); #endif return 0; } void flash_preinit(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. */ #if defined(CONFIG_MGT5100) *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */ *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */ #endif *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ } #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 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) void init_ide_reset (void) { debug ("init_ide_reset\n"); /* Configure PSC1_4 as GPIO output for ATA reset */ *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4; *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4; } void ide_set_reset (int idereset) { debug ("ide_reset(%d)\n", idereset); if (idereset) { *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4; } else { *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4; } } #endif #ifdef CONFIG_POST /* * Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3 * is left open, no keypress is detected. */ int post_hotkeys_pressed(void) { struct mpc5xxx_gpio *gpio; gpio = (struct mpc5xxx_gpio*) MPC5XXX_GPIO; /* * Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in * CODEC or UART mode. Consumer IrDA should still be possible. */ gpio->port_config &= ~(0x07000000); gpio->port_config |= 0x03000000; /* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */ gpio->simple_gpioe |= 0x20000000; /* Configure GPIO_IRDA_1 as input */ gpio->simple_ddr &= ~(0x20000000); return ((gpio->simple_ival & 0x20000000) ? 0 : 1); } #endif #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) void post_word_store (ulong a) { volatile ulong *save_addr = (volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE); *save_addr = a; } ulong post_word_load (void) { volatile ulong *save_addr = (volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE); return *save_addr; } #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ #ifdef CONFIG_BOARD_EARLY_INIT_R int board_early_init_r (void) { #ifdef CONFIG_RTC_MPC5200 struct rtc_time t; /* set to Wed Dec 31 19:00:00 1969 */ t.tm_sec = t.tm_min = 0; t.tm_hour = 19; t.tm_mday = 31; t.tm_mon = 12; t.tm_year = 1969; t.tm_wday = 3; rtc_set(&t); #endif /* CONFIG_RTC_MPC5200 */ #ifdef CONFIG_PS2MULT ps2mult_early_init(); #endif /* CONFIG_PS2MULT */ return (0); } #endif /* CONFIG_BOARD_EARLY_INIT_R */ int last_stage_init (void) { /* * auto scan for really existing devices and re-set chip select * configuration. */ u16 save, tmp; int restore; /* * Check for SRAM and SRAM size */ /* save original SRAM content */ save = *(volatile u16 *)CFG_CS2_START; restore = 1; /* write test pattern to SRAM */ *(volatile u16 *)CFG_CS2_START = 0xA5A5; __asm__ volatile ("sync"); /* * Put a different pattern on the data lines: otherwise they may float * long enough to read back what we wrote. */ tmp = *(volatile u16 *)CFG_FLASH_BASE; if (tmp == 0xA5A5) puts ("!! possible error in SRAM detection\n"); if (*(volatile u16 *)CFG_CS2_START != 0xA5A5) { /* no SRAM at all, disable cs */ *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 18); *(vu_long *)MPC5XXX_CS2_START = 0x0000FFFF; *(vu_long *)MPC5XXX_CS2_STOP = 0x0000FFFF; restore = 0; __asm__ volatile ("sync"); } else if (*(volatile u16 *)(CFG_CS2_START + (1<<19)) == 0xA5A5) { /* make sure that we access a mirrored address */ *(volatile u16 *)CFG_CS2_START = 0x1111; __asm__ volatile ("sync"); if (*(volatile u16 *)(CFG_CS2_START + (1<<19)) == 0x1111) { /* SRAM size = 512 kByte */ *(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CFG_CS2_START, 0x80000); __asm__ volatile ("sync"); puts ("SRAM: 512 kB\n"); } else puts ("!! possible error in SRAM detection\n"); } else { puts ("SRAM: 1 MB\n"); } /* restore origianl SRAM content */ if (restore) { *(volatile u16 *)CFG_CS2_START = save; __asm__ volatile ("sync"); } /* * Check for Grafic Controller */ /* save origianl FB content */ save = *(volatile u16 *)CFG_CS1_START; restore = 1; /* write test pattern to FB memory */ *(volatile u16 *)CFG_CS1_START = 0xA5A5; __asm__ volatile ("sync"); /* * Put a different pattern on the data lines: otherwise they may float * long enough to read back what we wrote. */ tmp = *(volatile u16 *)CFG_FLASH_BASE; if (tmp == 0xA5A5) puts ("!! possible error in grafic controller detection\n"); if (*(volatile u16 *)CFG_CS1_START != 0xA5A5) { /* no grafic controller at all, disable cs */ *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 17); *(vu_long *)MPC5XXX_CS1_START = 0x0000FFFF; *(vu_long *)MPC5XXX_CS1_STOP = 0x0000FFFF; restore = 0; __asm__ volatile ("sync"); } else { puts ("VGA: SMI501 (Voyager) with 8 MB\n"); } /* restore origianl FB content */ if (restore) { *(volatile u16 *)CFG_CS1_START = save; __asm__ volatile ("sync"); } return 0; } #ifdef CONFIG_VIDEO_SM501 #define DISPLAY_WIDTH 640 #define DISPLAY_HEIGHT 480 #ifdef CONFIG_VIDEO_SM501_8BPP #error CONFIG_VIDEO_SM501_8BPP not supported. #endif /* CONFIG_VIDEO_SM501_8BPP */ #ifdef CONFIG_VIDEO_SM501_16BPP #error CONFIG_VIDEO_SM501_16BPP not supported. #endif /* CONFIG_VIDEO_SM501_16BPP */ #ifdef CONFIG_VIDEO_SM501_32BPP static const SMI_REGS init_regs [] = { #if defined (CONFIG_BC3450_FP) && !defined (CONFIG_BC3450_CRT) /* FP only */ {0x00004, 0x0}, {0x00048, 0x00021807}, {0x0004C, 0x091a0a01}, {0x00054, 0x1}, {0x00040, 0x00021807}, {0x00044, 0x091a0a01}, {0x00054, 0x0}, {0x80000, 0x01013106}, {0x80004, 0xc428bb17}, {0x80000, 0x03013106}, {0x8000C, 0x00000000}, {0x80010, 0x0a000a00}, {0x80014, 0x02800000}, {0x80018, 0x01e00000}, {0x8001C, 0x00000000}, {0x80020, 0x01e00280}, {0x80024, 0x02fa027f}, {0x80028, 0x004a028b}, {0x8002C, 0x020c01df}, {0x80030, 0x000201e9}, {0x80200, 0x00010200}, {0x80000, 0x0f013106}, #elif defined (CONFIG_BC3450_CRT) && !defined (CONFIG_BC3450_FP) /* CRT only */ {0x00004, 0x0}, {0x00048, 0x00021807}, {0x0004C, 0x10090a01}, {0x00054, 0x1}, {0x00040, 0x00021807}, {0x00044, 0x10090a01}, {0x00054, 0x0}, {0x80200, 0x00010000}, {0x80204, 0x0}, {0x80208, 0x0A000A00}, {0x8020C, 0x02fa027f}, {0x80210, 0x004a028b}, {0x80214, 0x020c01df}, {0x80218, 0x000201e9}, {0x80200, 0x00013306}, #else /* panel + CRT */ {0x00004, 0x0}, {0x00048, 0x00021807}, {0x0004C, 0x091a0a01}, {0x00054, 0x1}, {0x00040, 0x00021807}, {0x00044, 0x091a0a01}, {0x00054, 0x0}, {0x80000, 0x0f013106}, {0x80004, 0xc428bb17}, {0x8000C, 0x00000000}, {0x80010, 0x0a000a00}, {0x80014, 0x02800000}, {0x80018, 0x01e00000}, {0x8001C, 0x00000000}, {0x80020, 0x01e00280}, {0x80024, 0x02fa027f}, {0x80028, 0x004a028b}, {0x8002C, 0x020c01df}, {0x80030, 0x000201e9}, {0x80200, 0x00010000}, #endif {0, 0} }; #endif /* CONFIG_VIDEO_SM501_32BPP */ #ifdef CONFIG_CONSOLE_EXTRA_INFO /* * Return text to be printed besides the logo. */ void video_get_info_str (int line_number, char *info) { if (line_number == 1) { #if defined (CONFIG_TQM5200) strcpy (info, " Board: TQM5200 (TQ-Components GmbH)"); #else #error No supported board selected #endif /* CONFIG_TQM5200 */ #if defined (CONFIG_BC3450) } else if (line_number == 2) { strcpy (info, " Dev: GERSYS BC3450"); #endif /* CONFIG_BC3450 */ } else { info [0] = '\0'; } } #endif /* * Returns SM501 register base address. First thing called in the * driver. Checks if SM501 is physically present. */ unsigned int board_video_init (void) { u16 save, tmp; int restore, ret; /* * Check for Grafic Controller */ /* save origianl FB content */ save = *(volatile u16 *)CFG_CS1_START; restore = 1; /* write test pattern to FB memory */ *(volatile u16 *)CFG_CS1_START = 0xA5A5; __asm__ volatile ("sync"); /* * Put a different pattern on the data lines: otherwise they may float * long enough to read back what we wrote. */ tmp = *(volatile u16 *)CFG_FLASH_BASE; if (tmp == 0xA5A5) puts ("!! possible error in grafic controller detection\n"); if (*(volatile u16 *)CFG_CS1_START != 0xA5A5) { /* no grafic controller found */ restore = 0; ret = 0; } else { ret = SM501_MMIO_BASE; } if (restore) { *(volatile u16 *)CFG_CS1_START = save; __asm__ volatile ("sync"); } return ret; } /* * Returns SM501 framebuffer address */ unsigned int board_video_get_fb (void) { return SM501_FB_BASE; } /* * Called after initializing the SM501 and before clearing the screen. */ void board_validate_screen (unsigned int base) { } /* * Return a pointer to the initialization sequence. */ const SMI_REGS *board_get_regs (void) { return init_regs; } int board_get_width (void) { return DISPLAY_WIDTH; } int board_get_height (void) { return DISPLAY_HEIGHT; } #endif /* CONFIG_VIDEO_SM501 */