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Diffstat (limited to 'board/nx823/nx823.c')
-rw-r--r-- | board/nx823/nx823.c | 374 |
1 files changed, 0 insertions, 374 deletions
diff --git a/board/nx823/nx823.c b/board/nx823/nx823.c deleted file mode 100644 index d49fa8ca21a..00000000000 --- a/board/nx823/nx823.c +++ /dev/null @@ -1,374 +0,0 @@ -/* - * (C) Copyright 2001 - * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net - * - * (C) Copyright 2001-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <malloc.h> -#include <mpc8xx.h> -#include <net.h> - -DECLARE_GLOBAL_DATA_PTR; - -static long int dram_size (long int, long int *, long int); - -#define _NOT_USED_ 0xFFFFFFFF - -const uint sdram_table[] = { -#if (MPC8XX_SPEED <= 50000000L) - /* - * Single Read. (Offset 0 in UPMA RAM) - */ - 0x0F07EC04, 0x01BBD804, 0x1FF7F440, 0xFFFFFC07, - 0xFFFFFFFF, - - /* - * SDRAM Initialization (offset 5 in UPMA RAM) - * - * This is no UPM entry point. The following definition uses - * the remaining space to establish an initialization - * sequence, which is executed by a RUN command. - * - */ - 0x1FE7F434, 0xEFABE834, 0x1FA7D435, - - /* - * Burst Read. (Offset 8 in UPMA RAM) - */ - 0x0F07EC04, 0x10EFDC04, 0xF0AFFC00, 0xF0AFFC00, - 0xF1AFFC00, 0xFFAFFC40, 0xFFAFFC07, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - - /* - * Single Write. (Offset 18 in UPMA RAM) - */ - 0x0E07E804, 0x01BBD000, 0x1FF7F447, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - - /* - * Burst Write. (Offset 20 in UPMA RAM) - */ - 0x0E07E800, 0x10EFD400, 0xF0AFFC00, 0xF0AFFC00, - 0xF1AFFC47, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - - /* - * Refresh (Offset 30 in UPMA RAM) - */ - 0x1FF7DC84, 0xFFFFFC04, 0xFFFFFC84, 0xFFFFFC07, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - - /* - * Exception. (Offset 3c in UPMA RAM) - */ - 0x7FFFFC07, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF -#else - - /* - * Single Read. (Offset 0 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAFEC04, 0x11AFDC04, 0xEFBBF800, - 0x1FF7F447, - - /* - * SDRAM Initialization (offset 5 in UPMA RAM) - * - * This is no UPM entry point. The following definition uses - * the remaining space to establish an initialization - * sequence, which is executed by a RUN command. - * - */ - 0x1FF7F434, 0xEFEBE834, 0x1FB7D435, - - /* - * Burst Read. (Offset 8 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAFEC04, 0x10AFDC04, 0xF0AFFC00, - 0xF0AFFC00, 0xF1AFFC00, 0xEFBBF800, 0x1FF7F447, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* - * Single Write. (Offset 18 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAFE800, 0x01BBD004, 0x1FF7F447, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* - * Burst Write. (Offset 20 in UPMA RAM) - */ - 0x1F07FC04, 0xEEAFE800, 0x10AFD400, 0xF0AFFC00, - 0xF0AFFC00, 0xE1BBF804, 0x1FF7F447, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* - * Refresh (Offset 30 in UPMA RAM) - */ - 0x1FF7DC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, - 0xFFFFFC84, 0xFFFFFC07, - _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* - * Exception. (Offset 3c in UPMA RAM) - */ - 0x7FFFFC07, /* last */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, -#endif -}; - -/* ------------------------------------------------------------------------- */ - - -/* - * Check Board Identity: - * - */ - -int checkboard (void) -{ - printf ("Board: Nexus NX823"); - return (0); -} - -/* ------------------------------------------------------------------------- */ - -phys_size_t initdram (int board_type) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - long int size_b0, size_b1, size8, size9; - - upmconfig (UPMA, (uint *) sdram_table, - sizeof (sdram_table) / sizeof (uint)); - - /* - * Up to 2 Banks of 64Mbit x 2 devices - * Initial builds only have 1 - */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_4K; - memctl->memc_mar = 0x00000088; - - /* - * Map controller SDRAM bank 0 - */ - memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; - memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */ - udelay (200); - - /* - * Map controller SDRAM bank 1 - */ - memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; - memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; - - /* - * Perform SDRAM initializsation sequence - */ - memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */ - udelay (1); - memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - execute twice */ - udelay (1); - - memctl->memc_mcr = 0x80004105; /* SDRAM bank 1 */ - udelay (1); - memctl->memc_mcr = 0x80004230; /* SDRAM bank 1 - execute twice */ - udelay (1); - - memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */ - udelay (1000); - - /* - * Preliminary prescaler for refresh (depends on number of - * banks): This value is selected for four cycles every 62.4 us - * with two SDRAM banks or four cycles every 31.2 us with one - * bank. It will be adjusted after memory sizing. - */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_8K; - - memctl->memc_mar = 0x00000088; - - - /* - * Check Bank 0 Memory Size for re-configuration - * - * try 8 column mode - */ - size8 = dram_size (CONFIG_SYS_MAMR_8COL, (long *) SDRAM_BASE1_PRELIM, - SDRAM_MAX_SIZE); - - udelay (1000); - - /* - * try 9 column mode - */ - size9 = dram_size (CONFIG_SYS_MAMR_9COL, (long *) SDRAM_BASE1_PRELIM, - SDRAM_MAX_SIZE); - - if (size8 < size9) { /* leave configuration at 9 columns */ - size_b0 = size9; -/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */ - } else { /* back to 8 columns */ - size_b0 = size8; - memctl->memc_mamr = CONFIG_SYS_MAMR_8COL; - udelay (500); -/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */ - } - - /* - * Check Bank 1 Memory Size - * use current column settings - * [9 column SDRAM may also be used in 8 column mode, - * but then only half the real size will be used.] - */ - size_b1 = dram_size (memctl->memc_mamr, (long *) SDRAM_BASE2_PRELIM, - SDRAM_MAX_SIZE); -/* debug ("SDRAM Bank 1: %ld MB\n", size8 >> 20); */ - - udelay (1000); - - /* - * Adjust refresh rate depending on SDRAM type, both banks - * For types > 128 MBit leave it at the current (fast) rate - */ - if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) { - /* reduce to 15.6 us (62.4 us / quad) */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K; - udelay (1000); - } - - /* - * Final mapping: map bigger bank first - */ - if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */ - - memctl->memc_or2 = - ((-size_b1) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br2 = - (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V; - - if (size_b0 > 0) { - /* - * Position Bank 0 immediately above Bank 1 - */ - memctl->memc_or1 = - ((-size_b0) & 0xFFFF0000) | - CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br1 = - ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | - BR_V) - + size_b1; - } else { - unsigned long reg; - - /* - * No bank 0 - * - * invalidate bank - */ - memctl->memc_br1 = 0; - - /* adjust refresh rate depending on SDRAM type, one bank */ - reg = memctl->memc_mptpr; - reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */ - memctl->memc_mptpr = reg; - } - - } else { /* SDRAM Bank 0 is bigger - map first */ - - memctl->memc_or1 = - ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br1 = - (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V; - - if (size_b1 > 0) { - /* - * Position Bank 1 immediately above Bank 0 - */ - memctl->memc_or2 = - ((-size_b1) & 0xFFFF0000) | - CONFIG_SYS_OR_TIMING_SDRAM; - memctl->memc_br2 = - ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | - BR_V) - + size_b0; - } else { - unsigned long reg; - - /* - * No bank 1 - * - * invalidate bank - */ - memctl->memc_br2 = 0; - - /* adjust refresh rate depending on SDRAM type, one bank */ - reg = memctl->memc_mptpr; - reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */ - memctl->memc_mptpr = reg; - } - } - - udelay (10000); - - return (size_b0 + size_b1); -} - -/* ------------------------------------------------------------------------- */ - -/* - * Check memory range for valid RAM. A simple memory test determines - * the actually available RAM size between addresses `base' and - * `base + maxsize'. Some (not all) hardware errors are detected: - * - short between address lines - * - short between data lines - */ - -static long int dram_size (long int mamr_value, long int *base, - long int maxsize) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - - memctl->memc_mamr = mamr_value; - - return (get_ram_size (base, maxsize)); -} - -int misc_init_r (void) -{ - int i; - char tmp[50]; - uchar ethaddr[6]; - bd_t *bd = gd->bd; - ulong *my_sernum = (unsigned long *)&bd->bi_sernum; - - /* load unique serial number */ - for (i = 0; i < 8; ++i) - bd->bi_sernum[i] = *(u_char *) (CONFIG_SYS_FLASH_SN_BASE + i); - - /* save env variables according to sernum */ - sprintf (tmp, "%08lx%08lx", my_sernum[0], my_sernum[1]); - setenv ("serial#", tmp); - - if (!eth_getenv_enetaddr("ethaddr", ethaddr)) { - ethaddr[0] = 0x10; - ethaddr[1] = 0x20; - ethaddr[2] = 0x30; - ethaddr[3] = bd->bi_sernum[1] << 4 | bd->bi_sernum[2]; - ethaddr[4] = bd->bi_sernum[5]; - ethaddr[5] = bd->bi_sernum[6]; - } - - return 0; -} |