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Diffstat (limited to 'board/pcm030/pcm030.c')
| -rw-r--r-- | board/pcm030/pcm030.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/board/pcm030/pcm030.c b/board/pcm030/pcm030.c new file mode 100644 index 0000000000..39c3b76d91 --- /dev/null +++ b/board/pcm030/pcm030.c @@ -0,0 +1,389 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * (C) Copyright 2006 + * Eric Schumann, Phytec Messtechnik GmbH + * + * 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 <driver.h> +#include <cfi_flash.h> +#include <init.h> +#include <asm/arch/mpc5xxx.h> +#include <asm/arch/fec.h> +#include <types.h> +#include <partition.h> +#include <mem_malloc.h> +#include <reloc.h> + +#ifdef CONFIG_VIDEO_OPENIP +#include <openip.h> +#endif + +struct device_d cfi_dev = { + .name = "cfi_flash", + .id = "nor0", + + .map_base = 0xff000000, + .size = 16 * 1024 * 1024, +}; + +struct device_d sdram_dev = { + .name = "ram", + .id = "ram0", + + .map_base = 0x0, + .size = 64 * 1024 * 1024, + + .type = DEVICE_TYPE_DRAM, +}; + +struct device_d scratch_dev = { + .name = "ram", + .id = "scratch0", + .type = DEVICE_TYPE_DRAM, +}; + +static struct mpc5xxx_fec_platform_data fec_info = { + .xcv_type = MII100, +}; + +struct device_d eth_dev = { + .name = "fec_mpc5xxx", + .id = "eth0", + .map_base = MPC5XXX_FEC, + .platform_data = &fec_info, + .type = DEVICE_TYPE_ETHER, +}; + +#define SCRATCHMEM_SIZE (1024 * 1024 * 4) + +static int devices_init (void) +{ + register_device(&cfi_dev); + register_device(&sdram_dev); + register_device(ð_dev); + + scratch_dev.map_base = (unsigned long)sbrk_no_zero(SCRATCHMEM_SIZE); + scratch_dev.size = SCRATCHMEM_SIZE; + register_device(&scratch_dev); + + dev_add_partition(&cfi_dev, 0x00f00000, 0x40000, PARTITION_FIXED, "self"); + dev_add_partition(&cfi_dev, 0x00f60000, 0x20000, PARTITION_FIXED, "env"); + + return 0; +} + +device_initcall(devices_init); + +static struct device_d psc3 = { + .name = "mpc5xxx_serial", + .id = "psc3", + .map_base = MPC5XXX_PSC3, + .size = 4096, + .type = DEVICE_TYPE_CONSOLE, +}; + +static struct device_d psc6 = { + .name = "mpc5xxx_serial", + .id = "psc6", + .map_base = MPC5XXX_PSC6, + .size = 4096, + .type = DEVICE_TYPE_CONSOLE, +}; + +static int console_init(void) +{ + register_device(&psc3); + register_device(&psc6); + return 0; +} + +console_initcall(console_init); + +void *get_early_console_base(const char *name) +{ + if (!strcmp(name, RELOC("psc3"))) + return (void *)MPC5XXX_PSC3; + if (!strcmp(name, RELOC("psc6"))) + return (void *)MPC5XXX_PSC6; + return NULL; +} + +#include "mt46v32m16-75.h" + +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"); +} + +/* + * 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. + */ + +long int initdram (int board_type) +{ + ulong dramsize = 0; + ulong dramsize2 = 0; + + ulong test1, test2; + + if ((ulong)RELOC(initdram) > (2 << 30)) { + /* setup SDRAM chip selects */ + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001b;/* 256MB at 0x0 */ + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x10000000;/* 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 && SDRAM_TAPDELAY + /* 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((ulong *)CFG_SDRAM_BASE, 0x10000000); + sdram_start(1); + test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x10000000); + 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 + puts(RELOC("skipping sdram initialization\n")); + + /* 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; + } + + return dramsize + dramsize2; +} + +#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_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP) +void +ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +} +#endif + +#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) + +#define GPIO_PSC2_4 0x02000000UL + +void init_ide_reset (void) +{ + debug ("init_ide_reset\n"); + + /* Configure PSC2_4 as GPIO output for ATA reset */ + *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC2_4; + *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC2_4; + /* Deassert reset */ + *(vu_long *) MPC5XXX_WU_GPIO_DATA |= GPIO_PSC2_4; +} + +void ide_set_reset (int idereset) +{ + debug ("ide_reset(%d)\n", idereset); + + if (idereset) { + *(vu_long *) MPC5XXX_WU_GPIO_DATA &= ~GPIO_PSC2_4; + /* Make a delay. MPC5200 spec says 25 usec min */ + udelay(500000); + } else { + *(vu_long *) MPC5XXX_WU_GPIO_DATA |= GPIO_PSC2_4; + } +} +#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */ + +#ifdef CONFIG_VIDEO_OPENIP + +#define DISPLAY_WIDTH 320 +#define DISPLAY_HEIGHT 240 + +#ifdef CONFIG_VIDEO_OPENIP_8BPP +#error CONFIG_VIDEO_OPENIP_8BPP not supported. +#endif /* CONFIG_VIDEO_OPENIP_8BPP */ + +#ifdef CONFIG_VIDEO_OPENIP_16BPP +#error CONFIG_VIDEO_OPENIP_16BPP not supported. +#endif /* CONFIG_VIDEO_OPENIP_16BPP */ +#ifdef CONFIG_VIDEO_OPENIP_32BPP + + + +static const SMI_REGS init_regs [] = +{ + {0x00008, 0x0248013f}, + {0x0000c, 0x021100f0}, + {0x00010, 0x018c0106}, + {0x00014, 0x00800000}, + {0x00018, 0x00800000}, + {0x00000, 0x00003701}, + {0, 0} +}; +#endif /* CONFIG_VIDEO_OPENIP_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) { + strcpy (info, " Board: phyCORE-MPC5200B tiny (Phytec Messtechnik GmbH)"); + } else if (line_number == 2) { + strcpy (info, " on a PCM-980 baseboard"); + } + else { + info [0] = '\0'; + } +} +#endif + +/* + * Returns OPENIP register base address. First thing called in the driver. + */ +unsigned int board_video_init (void) +{ +ulong dummy; +dummy = *(vu_long *)OPENIP_MMIO_BASE; /*dummy read*/ +dummy = *(vu_long *)OPENIP_MMIO_BASE; /*dummy read*/ + return OPENIP_MMIO_BASE; +} + +/* + * Returns OPENIP framebuffer address + */ +unsigned int board_video_get_fb (void) +{ + + return OPENIP_FB_BASE; +} + +/* + * Called after initializing the OPENIP 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_OPENIP */ |