diff options
Diffstat (limited to 'qemu/roms/u-boot/board/cmi')
| -rw-r--r-- | qemu/roms/u-boot/board/cmi/Makefile | 8 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/cmi/README | 84 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/cmi/cmi.c | 57 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/cmi/flash.c | 501 |
4 files changed, 650 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/cmi/Makefile b/qemu/roms/u-boot/board/cmi/Makefile new file mode 100644 index 000000000..cd3bb0db2 --- /dev/null +++ b/qemu/roms/u-boot/board/cmi/Makefile @@ -0,0 +1,8 @@ +# +# (C) Copyright 2001-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := flash.o cmi.o diff --git a/qemu/roms/u-boot/board/cmi/README b/qemu/roms/u-boot/board/cmi/README new file mode 100644 index 000000000..0edd50ad2 --- /dev/null +++ b/qemu/roms/u-boot/board/cmi/README @@ -0,0 +1,84 @@ + +Summary: +======== + +This file contains information about the cmi board configuration. +Please see cmi_mpc5xx_config for further details. The cmi board is +a customer specific board but should work with small modifications +on every board which has a MPC5xx and either a 28F128J3A, +28F320J3A or 28F640J3A Intel flash mounted. + +Board Discription: +================== + +* Motorola MPC555 +* RS232 connection +* Intel flash 28F640J3A +* Micron SRAM 1M +* Altera PLD + +Bootstrap: +========== + +In contrast to the usual boot sequence used in U-Boot, on the +cmi board we don't boot from the external flash directly. +Because of we use a 16-bit flash and don't sample a RCW +from the data bus to set the startup buswidth to 16-bit. +Unfortunatly the default width, sampled from the default RCW +is 32-bit. For this reason we burn the proper RCW into the +internal flash shadow location and boot after power-on or +reset from the internal flash and then branch to 0x02000100 +where the U-Boot reset vector handler is located. + +Memory Map: +=========== + +Memory Map after relocation: + + 0x0000 0000 CONFIG_SYS_SDRAM_BASE + : + 0x000F 9FFF + : + : + 0x0100 0000 CONFIG_SYS_IMMR (Internal memory map base adress) + : + 0x0130 7FFF + : + : + 0x0200 0000 CONFIG_SYS_FLASH_BASE + : + 0x027C FFFF + : + : + 0x0300 0000 PLD_BASE + +Flash Partition: + + 0x0200 0000 Block 0 and 1 contain U-Boot except + : environment + : + 0x0201 FFFF + 0x0202 0000 Block 2 contains environment (.ppcenv) + : + 0x0202 FFFF + +See README file for futher information about U-Boot relocation +and partitioning. + +Tested Features: +================ + +* U-Boot commands: go, loads, loadb, all memory features, printenv, + setenv, saveenv, protect, erase, fli, bdi, mtest, reset, version, + coninfo, help (see configuration file for available commands) + +* Blinking led to indicate boot process + +Added or Changed Files: +======================= + +u-boot-0.2.0/board/cmi/* +u-boot-0.2.0/include/configs/cmi_mpc5xx.h + +Regards, +Martin diff --git a/qemu/roms/u-boot/board/cmi/cmi.c b/qemu/roms/u-boot/board/cmi/cmi.c new file mode 100644 index 000000000..37028c31e --- /dev/null +++ b/qemu/roms/u-boot/board/cmi/cmi.c @@ -0,0 +1,57 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * File: cmi.c + * + * Discription: For generic board specific functions + * + */ + + +#include <common.h> +#include <mpc5xx.h> + +#define SRAM_SIZE 1024000L /* 1M RAM available*/ + +#if defined(__APPLE__) +/* Leading underscore on symbols */ +# define SYM_CHAR "_" +#else /* No leading character on symbols */ +# define SYM_CHAR +#endif + +/* + * Macros to generate global absolutes. + */ +#define GEN_SYMNAME(str) SYM_CHAR #str +#define GEN_VALUE(str) #str +#define GEN_ABS(name, value) \ + asm (".globl " GEN_SYMNAME(name)); \ + asm (GEN_SYMNAME(name) " = " GEN_VALUE(value)) + +/* + * Check the board + */ +int checkboard(void) +{ + puts ("Board: ### No HW ID - assuming CMI board\n"); + return (0); +} + +/* + * Get RAM size. + */ +phys_size_t initdram(int board_type) +{ + return (SRAM_SIZE); /* We currently have a static size adapted for cmi board. */ +} + +/* + * Absolute environment address for linker file. + */ +GEN_ABS(env_start, CONFIG_ENV_OFFSET + CONFIG_SYS_FLASH_BASE); diff --git a/qemu/roms/u-boot/board/cmi/flash.c b/qemu/roms/u-boot/board/cmi/flash.c new file mode 100644 index 000000000..d9986f99c --- /dev/null +++ b/qemu/roms/u-boot/board/cmi/flash.c @@ -0,0 +1,501 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * File: flash.c + * + * Discription: This Driver is for 28F320J3A, 28F640J3A and + * 28F128J3A Intel flashs working in 16 Bit mode. + * They are single bank flashs. + * + * Most of this code is taken from existing u-boot + * source code. + */ + + +#include <common.h> +#include <mpc5xx.h> + +#if defined(CONFIG_ENV_IS_IN_FLASH) +# ifndef CONFIG_ENV_ADDR +# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) +# endif +# ifndef CONFIG_ENV_SIZE +# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE +# endif +# ifndef CONFIG_ENV_SECT_SIZE +# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE +# endif +#endif + +#define FLASH_ID_MASK 0xFFFF +#define FLASH_BLOCK_SIZE 0x00010000 +#define FLASH_CMD_READ_ID 0x0090 +#define FLASH_CMD_RESET 0x00ff +#define FLASH_CMD_BLOCK_ERASE 0x0020 +#define FLASH_CMD_ERASE_CONFIRM 0x00D0 +#define FLASH_CMD_CLEAR_STATUS 0x0050 +#define FLASH_CMD_SUSPEND_ERASE 0x00B0 +#define FLASH_CMD_WRITE 0x0040 +#define FLASH_CMD_PROTECT 0x0060 +#define FLASH_CMD_PROTECT_SET 0x0001 +#define FLASH_CMD_PROTECT_CLEAR 0x00D0 +#define FLASH_STATUS_DONE 0x0080 + +flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; + +/* + * Local function prototypes + */ +static ulong flash_get_size (vu_short *addr, flash_info_t *info); +static int write_short (flash_info_t *info, ulong dest, ushort data); +static void flash_get_offsets (ulong base, flash_info_t *info); + +/* + * Initialize flash + */ + +unsigned long flash_init (void) +{ + unsigned long size_b0; + int i; + + /* Init: no FLASHes known */ + for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + /* Static FLASH Bank configuration here - FIXME XXX */ +#if 1 + debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM); +#endif + size_b0 = flash_get_size((vu_short *)FLASH_BASE0_PRELIM, &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank 0: " + "ID 0x%lx, Size = 0x%08lx = %ld MB\n", + flash_info[0].flash_id, + size_b0, size_b0<<20); + } + + flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); + + flash_info[0].size = size_b0; + +#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE + /* monitor protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CONFIG_SYS_MONITOR_BASE, + CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, + &flash_info[0]); +#endif + +#ifdef CONFIG_ENV_IS_IN_FLASH + /* ENV protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CONFIG_ENV_ADDR, + CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, + &flash_info[0]); +#endif + + return size_b0; +} + +/* + * Compute start adress of each sector (block) + */ + +static void flash_get_offsets (ulong base, flash_info_t *info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + for (i = 0; i < info->sector_count; i++) { + info->start[i] = base + i * FLASH_BLOCK_SIZE; + } + return; + + default: + printf ("Don't know sector offsets for flash type 0x%lx\n", + info->flash_id); + return; + } +} + +/* + * Print flash information + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: printf ("AMD "); break; + case FLASH_MAN_FUJ: printf ("Fujitsu "); break; + case FLASH_MAN_SST: printf ("SST "); break; + case FLASH_MAN_STM: printf ("STM "); break; + case FLASH_MAN_INTEL: printf ("Intel "); break; + case FLASH_MAN_MT: printf ("MT "); break; + default: printf ("Unknown Vendor "); break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F320J3A: printf ("28F320J3A (32Mbit) 16-Bit\n"); + break; + case FLASH_28F640J3A: printf ("28F640J3A (64Mbit) 16-Bit\n"); + break; + case FLASH_28F128J3A: printf ("28F128J3A (128Mbit) 16-Bit\n"); + break; + default: printf ("Unknown Chip Type\n"); + break; + } + + if (info->size >= (1 << 20)) { + i = 20; + } else { + i = 10; + } + printf (" Size: %ld %cB in %d Sectors\n", + info->size >> i, + (i == 20) ? 'M' : 'k', + info->sector_count); + + printf (" Sector Start Addresses:"); + for (i=0; i<info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], + info->protect[i] ? " (RO)" : " " + ); + } + printf ("\n"); + return; +} + +/* + * Get size of flash in bytes. + * The following code cannot be run from FLASH! + */ + +static ulong flash_get_size (vu_short *addr, flash_info_t *info) +{ + vu_short value; + + /* Read Manufacturer ID */ + addr[0] = FLASH_CMD_READ_ID; + value = addr[0]; + + switch (value) { + case (AMD_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_AMD; + break; + case (FUJ_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_FUJ; + break; + case (SST_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_SST; + break; + case (STM_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_STM; + break; + case (INTEL_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_INTEL; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + return (0); /* no or unknown flash */ + } + + value = addr[1]; /* device ID */ + + switch (value) { + case (INTEL_ID_28F320J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F320J3A; + info->sector_count = 32; + info->size = 0x00400000; + break; /* => 32 MBit */ + + case (INTEL_ID_28F640J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F640J3A; + info->sector_count = 64; + info->size = 0x00800000; + break; /* => 64 MBit */ + + case (INTEL_ID_28F128J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x01000000; + break; /* => 128 MBit */ + + default: + info->flash_id = FLASH_UNKNOWN; + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + return (0); /* => no or unknown flash */ + + } + + if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); + info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; + } + + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + + return (info->size); +} + + +/* + * Erase unprotected sectors + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + int flag, prot, sect; + ulong start, now, last; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) { + printf ("Can erase only Intel flash types - aborted\n"); + return 1; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + start = get_timer (0); + last = start; + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + vu_short *addr = (vu_short *)(info->start[sect]); + unsigned long status; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + +#ifdef DEBUG + printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]); +#endif + + *addr = FLASH_CMD_CLEAR_STATUS; + *addr = FLASH_CMD_BLOCK_ERASE; + *addr = FLASH_CMD_ERASE_CONFIRM; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + + while (((status = *addr) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) { + if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { + printf("Flash erase timeout at address %lx\n", info->start[sect]); + *addr = FLASH_CMD_SUSPEND_ERASE; + *addr = FLASH_CMD_RESET; + return 1; + } + + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + *addr = FLASH_CMD_RESET; + } + } + printf (" done\n"); + return 0; +} + +/* + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp; + ushort data; + int i, rc; + + if (info->flash_id == FLASH_UNKNOWN) { + return 4; + } + + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start byte + */ + + if (addr - wp) { + data = 0; + data = (data << 8) | *src++; + --cnt; + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ + + while (cnt >= 2) { + data = 0; + for (i=0; i<2; ++i) { + data = (data << 8) | *src++; + } + + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_short(info, wp, data)); + +} + +/* + * Write 16 bit (short) to flash + */ + +static int write_short (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short*)(info->start[0]); + ulong start; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*((vu_short *)dest) & data) != data) { + return (2); + } + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + if (!(info->flash_id & FLASH_VENDMASK)) { + return 4; + } + *addr = FLASH_CMD_ERASE_CONFIRM; + *addr = FLASH_CMD_WRITE; + + *((vu_short *)dest) = data; + + /* re-enable interrupts if necessary */ + if (flag) { + enable_interrupts(); + } + + /* data polling for D7 */ + start = get_timer (0); + + /* wait for error or finish */ + while(!(addr[0] & FLASH_STATUS_DONE)){ + if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { + addr[0] = FLASH_CMD_RESET; + return (1); + } + } + + *addr = FLASH_CMD_RESET; + return (0); +} + +/* + * Protects a flash sector + */ + +int flash_real_protect(flash_info_t *info, long sector, int prot) +{ + vu_short *addr = (vu_short*)(info->start[sector]); + ulong start; + + *addr = FLASH_CMD_CLEAR_STATUS; + *addr = FLASH_CMD_PROTECT; + + if(prot) { + *addr = FLASH_CMD_PROTECT_SET; + } else { + *addr = FLASH_CMD_PROTECT_CLEAR; + } + + /* wait for error or finish */ + start = get_timer (0); + while(!(addr[0] & FLASH_STATUS_DONE)){ + if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) { + printf("Flash protect timeout at address %lx\n", info->start[sector]); + addr[0] = FLASH_CMD_RESET; + return (1); + } + } + /* Set software protect flag */ + info->protect[sector] = prot; + *addr = FLASH_CMD_RESET; + return (0); +} |