From 49822e23a09e2f529e6774ad61f23e43ab208cbc Mon Sep 17 00:00:00 2001 From: wdenk Date: Sat, 19 Jun 2004 21:19:10 +0000 Subject: Patch by Josef Wagner, 04 Jun 2004: - DDR Ram support for PM520 (MPC5200) - support for different flash types (PM520) - USB / IDE / CF-Card / DiskOnChip support for PM520 - 8 bit boot rom support for PM520/CE520 - Add auto SDRAM module detection for MicroSys CPC45 board (MPC8245) - I2C and RTC support for CPC45 - support of new flash type (28F160C3T) for CPC45 --- board/pm520/flash.c | 25 +++- board/pm520/mt46v16m16-75.h | 37 ++++++ board/pm520/mt48lc16m16a2-75.h | 43 +++++++ board/pm520/pm520.c | 284 +++++++++++++++++++++++++++++------------ 4 files changed, 307 insertions(+), 82 deletions(-) create mode 100644 board/pm520/mt46v16m16-75.h create mode 100644 board/pm520/mt48lc16m16a2-75.h (limited to 'board/pm520') diff --git a/board/pm520/flash.c b/board/pm520/flash.c index 4ea8b3646..572cc9bbe 100644 --- a/board/pm520/flash.c +++ b/board/pm520/flash.c @@ -83,12 +83,18 @@ unsigned long flash_init (void) { int i; ulong size = 0; + extern void flash_preinit(void); + extern void flash_afterinit(ulong, ulong); + ulong flashbase = CFG_FLASH_BASE; + + flash_preinit(); for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { switch (i) { case 0: - flash_get_size ((FPW *) CFG_FLASH_BASE, &flash_info[i]); - flash_get_offsets (CFG_FLASH_BASE, &flash_info[i]); + memset(&flash_info[i], 0, sizeof(flash_info_t)); + flash_get_size ((FPW *) flashbase, &flash_info[i]); + flash_get_offsets (flash_info[i].start[0], &flash_info[i]); break; default: panic ("configured to many flash banks!\n"); @@ -99,14 +105,22 @@ unsigned long flash_init (void) /* Protect monitor and environment sectors */ +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE +#ifndef CONFIG_BOOT_ROM flash_protect ( FLAG_PROTECT_SET, CFG_MONITOR_BASE, CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0] ); +#endif +#endif +#ifdef CFG_ENV_IS_IN_FLASH flash_protect ( FLAG_PROTECT_SET, CFG_ENV_ADDR, CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] ); +#endif + + flash_afterinit(flash_info[0].start[0], flash_info[0].size); return size; } @@ -195,6 +209,8 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info) addr[0x5555] = (FPW) 0x00900090; mb (); + udelay(100); + value = addr[0]; switch (value) { @@ -220,18 +236,21 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info) info->flash_id += FLASH_28F128J3A; info->sector_count = 128; info->size = 0x02000000; + info->start[0] = CFG_FLASH_BASE; break; /* => 32 MB */ case (FPW) INTEL_ID_28F640J3A: info->flash_id += FLASH_28F640J3A; info->sector_count = 64; info->size = 0x01000000; + info->start[0] = CFG_FLASH_BASE + 0x01000000; break; /* => 16 MB */ case (FPW) INTEL_ID_28F320J3A: info->flash_id += FLASH_28F320J3A; info->sector_count = 32; - info->size = 0x00800000; + info->size = 0x800000; + info->start[0] = CFG_FLASH_BASE + 0x01800000; break; /* => 8 MB */ default: diff --git a/board/pm520/mt46v16m16-75.h b/board/pm520/mt46v16m16-75.h new file mode 100644 index 000000000..f650faaa1 --- /dev/null +++ b/board/pm520/mt46v16m16-75.h @@ -0,0 +1,37 @@ +/* + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * 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 + */ + +#define SDRAM_DDR 1 /* is DDR */ + +#if defined(CONFIG_MPC5200) +/* Settings for XLB = 132 MHz */ +#define SDRAM_MODE 0x018D0000 +#define SDRAM_EMODE 0x40090000 +#define SDRAM_CONTROL 0x714f0f00 +#define SDRAM_CONFIG1 0x73722930 +#define SDRAM_CONFIG2 0x47770000 +#define SDRAM_TAPDELAY 0x10000000 + +#else +#error CONFIG_MPC5200 not defined +#endif diff --git a/board/pm520/mt48lc16m16a2-75.h b/board/pm520/mt48lc16m16a2-75.h new file mode 100644 index 000000000..ffdf0396a --- /dev/null +++ b/board/pm520/mt48lc16m16a2-75.h @@ -0,0 +1,43 @@ +/* + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * 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 + */ + +#define SDRAM_DDR 0 /* is SDR */ + +#if defined(CONFIG_MPC5200) +/* Settings for XLB = 132 MHz */ +#define SDRAM_MODE 0x00CD0000 +#define SDRAM_CONTROL 0x504F0000 +#define SDRAM_CONFIG1 0xD2322800 +#define SDRAM_CONFIG2 0x8AD70000 + +#elif defined(CONFIG_MGT5100) +/* Settings for XLB = 66 MHz */ +#define SDRAM_MODE 0x008D0000 +#define SDRAM_CONTROL 0x504F0000 +#define SDRAM_CONFIG1 0xC2222600 +#define SDRAM_CONFIG2 0x88B70004 +#define SDRAM_ADDRSEL 0x02000000 + +#else +#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined +#endif diff --git a/board/pm520/pm520.c b/board/pm520/pm520.c index bb0268f48..54f59f59a 100644 --- a/board/pm520/pm520.c +++ b/board/pm520/pm520.c @@ -2,6 +2,9 @@ * (C) Copyright 2003-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * * See file CREDITS for list of people who contributed to this * project. * @@ -25,127 +28,209 @@ #include #include -#ifndef CFG_RAMBOOT -static long int dram_size(long int *base, long int maxsize) -{ - volatile long int *addr; - ulong cnt, val; - ulong save[32]; /* to make test non-destructive */ - unsigned char i = 0; - - for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) { - addr = base + cnt; /* pointer arith! */ - - save[i++] = *addr; - *addr = ~cnt; - } - - /* write 0 to base address */ - addr = base; - save[i] = *addr; - *addr = 0; - - /* check at base address */ - if ((val = *addr) != 0) { - *addr = save[i]; - return (0); - } - - for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) { - addr = base + cnt; /* pointer arith! */ - - val = *addr; - *addr = save[--i]; - - if (val != (~cnt)) { - return (cnt * sizeof (long)); - } - } - return (maxsize); -} +#if defined(CONFIG_MPC5200_DDR) +#include "mt46v16m16-75.h" +#else +#include "mt48lc16m16a2-75.h" +#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 = 0xd04f0000 | hi_addr_bit; + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit; + __asm__ volatile ("sync"); + /* precharge all banks */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0002 | hi_addr_bit; - /* set mode register */ -#if defined(CONFIG_MPC5200) - *(vu_long *)MPC5XXX_SDRAM_MODE = 0x408d0000; -#elif defined(CONFIG_MGT5100) - *(vu_long *)MPC5XXX_SDRAM_MODE = 0x008d0000; + *(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 = 0xd04f0002 | hi_addr_bit; + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; + __asm__ volatile ("sync"); + /* auto refresh */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0004 | hi_addr_bit; + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; + __asm__ volatile ("sync"); + /* set mode register */ - *(vu_long *)MPC5XXX_SDRAM_MODE = 0x008d0000; + *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE; + __asm__ volatile ("sync"); + /* normal operation */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = 0x504f0000 | hi_addr_bit; + *(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) long int initdram (int board_type) { ulong dramsize = 0; + ulong dramsize2 = 0; #ifndef CFG_RAMBOOT ulong test1, test2; - /* configure SDRAM start/end */ -#if defined(CONFIG_MPC5200) + /* setup SDRAM chip selects */ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */ + __asm__ volatile ("sync"); /* setup config registers */ - *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = 0xc2233a00; - *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x88b70004; + *(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((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; + } + + /* 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 + 0x0000001e;/* 2G */ + + /* find RAM size using SDRAM CS1 only */ + sdram_start(0); + test1 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000); + sdram_start(1); + test2 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000); + 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 + dramsize2; +} #elif defined(CONFIG_MGT5100) + +long int 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 = 0xc2222600; - *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x88b70004; + *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; + *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; /* address select register */ - *(vu_long *)MPC5XXX_SDRAM_XLBSEL = 0x03000000; -#endif + *(vu_long *)MPC5XXX_SDRAM_XLBSEL = SDRAM_ADDRSEL; + __asm__ volatile ("sync"); + + /* find RAM size */ sdram_start(0); - test1 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); + test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); sdram_start(1); - test2 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); + test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000); if (test1 > test2) { sdram_start(0); dramsize = test1; } else { dramsize = test2; } -#if defined(CONFIG_MPC5200) - *(vu_long *)MPC5XXX_SDRAM_CS0CFG = - (0x13 + __builtin_ffs(dramsize >> 20) - 1); - *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ -#elif defined(CONFIG_MGT5100) + + /* set SDRAM end address according to size */ *(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15); -#endif -#else -#ifdef CONFIG_MGT5100 - *(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */ +#else /* CFG_RAMBOOT */ + + /* Retrieve amount of SDRAM available */ dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15); -#else - dramsize = ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS0CFG - 0x13)) << 20); -#endif + #endif /* CFG_RAMBOOT */ - /* return total ram size */ + return dramsize; } +#else +#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined +#endif + int checkboard (void) { #if defined(CONFIG_MPC5200) @@ -171,14 +256,32 @@ void flash_preinit(void) *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ } -void flash_afterinit(ulong size) +void flash_afterinit(ulong start, ulong size) { - if (size == 0x800000) { /* adjust mapping */ - *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START = - START_REG(CFG_BOOTCS_START | size); - *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP = - STOP_REG(CFG_BOOTCS_START | size, size); - } +#if defined(CONFIG_BOOT_ROM) + /* adjust mapping */ + *(vu_long *)MPC5XXX_CS1_START = + START_REG(start); + *(vu_long *)MPC5XXX_CS1_STOP = + STOP_REG(start, size); +#else + /* adjust mapping */ + *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START = + START_REG(start); + *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP = + STOP_REG(start, size); +#endif +} + + +extern flash_info_t flash_info[]; /* info for FLASH chips */ + +int misc_init_r (void) +{ + DECLARE_GLOBAL_DATA_PTR; + /* adjust flash start */ + gd->bd->bi_flashstart = flash_info[0].start[0]; + return (0); } #ifdef CONFIG_PCI @@ -191,3 +294,26 @@ void pci_init_board(void) pci_mpc5xxx_init(&hose); } #endif + +#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) + +void init_ide_reset (void) +{ + debug ("init_ide_reset\n"); + +} + +void ide_set_reset (int idereset) +{ + debug ("ide_reset(%d)\n", idereset); + +} +#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */ + +#if (CONFIG_COMMANDS & CFG_CMD_DOC) +extern void doc_probe (ulong physadr); +void doc_init (void) +{ + doc_probe (CFG_DOC_BASE); +} +#endif -- cgit v1.2.3