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authorWolfgang Grandegger2008-06-04 13:52:17 +0200
committerAndrew Fleming-AFLEMING2008-06-10 18:22:26 -0500
commit4677988c7edc070c3786d3db7994abeca3ab82a0 (patch)
treeafe5291cc036cf5718f23734d1133cc71e26e5e0 /board/tqm834x/tqm834x.c
parent6fab2fe72ca5bf95280cd52cdf378af3e506eb50 (diff)
TQM: move TQM boards to board/tqc
Move all TQM board directories to the vendor specific directory "tqc" for modules from TQ-Components GmbH (http://www.tqc.de). Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Diffstat (limited to 'board/tqm834x/tqm834x.c')
-rw-r--r--board/tqm834x/tqm834x.c433
1 files changed, 0 insertions, 433 deletions
diff --git a/board/tqm834x/tqm834x.c b/board/tqm834x/tqm834x.c
deleted file mode 100644
index aea985ccc6c..00000000000
--- a/board/tqm834x/tqm834x.c
+++ /dev/null
@@ -1,433 +0,0 @@
-/*
- * (C) Copyright 2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <ioports.h>
-#include <mpc83xx.h>
-#include <asm/mpc8349_pci.h>
-#include <i2c.h>
-#include <miiphy.h>
-#include <asm-ppc/mmu.h>
-#include <pci.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define IOSYNC asm("eieio")
-#define ISYNC asm("isync")
-#define SYNC asm("sync")
-#define FPW FLASH_PORT_WIDTH
-#define FPWV FLASH_PORT_WIDTHV
-
-#define DDR_MAX_SIZE_PER_CS 0x20000000
-
-#if defined(DDR_CASLAT_20)
-#define TIMING_CASLAT TIMING_CFG1_CASLAT_20
-#define MODE_CASLAT DDR_MODE_CASLAT_20
-#else
-#define TIMING_CASLAT TIMING_CFG1_CASLAT_25
-#define MODE_CASLAT DDR_MODE_CASLAT_25
-#endif
-
-#define INITIAL_CS_CONFIG (CSCONFIG_EN | CSCONFIG_ROW_BIT_12 | \
- CSCONFIG_COL_BIT_9)
-
-/* Global variable used to store detected number of banks */
-int tqm834x_num_flash_banks;
-
-/* External definitions */
-ulong flash_get_size (ulong base, int banknum);
-extern flash_info_t flash_info[];
-
-/* Local functions */
-static int detect_num_flash_banks(void);
-static long int get_ddr_bank_size(short cs, volatile long *base);
-static void set_cs_bounds(short cs, long base, long size);
-static void set_cs_config(short cs, long config);
-static void set_ddr_config(void);
-
-/* Local variable */
-static volatile immap_t *im = (immap_t *)CFG_IMMR;
-
-/**************************************************************************
- * Board initialzation after relocation to RAM. Used to detect the number
- * of Flash banks on TQM834x.
- */
-int board_early_init_r (void) {
- /* sanity check, IMMARBAR should be mirrored at offset zero of IMMR */
- if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
- return 0;
-
- /* detect the number of Flash banks */
- return detect_num_flash_banks();
-}
-
-/**************************************************************************
- * DRAM initalization and size detection
- */
-long int initdram (int board_type)
-{
- long bank_size;
- long size;
- int cs;
-
- /* during size detection, set up the max DDRLAW size */
- im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE;
- im->sysconf.ddrlaw[0].ar = (LAWAR_EN | LAWAR_SIZE_2G);
-
- /* set CS bounds to maximum size */
- for(cs = 0; cs < 4; ++cs) {
- set_cs_bounds(cs,
- CFG_DDR_BASE + (cs * DDR_MAX_SIZE_PER_CS),
- DDR_MAX_SIZE_PER_CS);
-
- set_cs_config(cs, INITIAL_CS_CONFIG);
- }
-
- /* configure ddr controller */
- set_ddr_config();
-
- udelay(200);
-
- /* enable DDR controller */
- im->ddr.sdram_cfg = (SDRAM_CFG_MEM_EN |
- SDRAM_CFG_SREN |
- SDRAM_CFG_SDRAM_TYPE_DDR1);
- SYNC;
-
- /* size detection */
- debug("\n");
- size = 0;
- for(cs = 0; cs < 4; ++cs) {
- debug("\nDetecting Bank%d\n", cs);
-
- bank_size = get_ddr_bank_size(cs,
- (volatile long*)(CFG_DDR_BASE + size));
- size += bank_size;
-
- debug("DDR Bank%d size: %d MiB\n\n", cs, bank_size >> 20);
-
- /* exit if less than one bank */
- if(size < DDR_MAX_SIZE_PER_CS) break;
- }
-
- return size;
-}
-
-/**************************************************************************
- * checkboard()
- */
-int checkboard (void)
-{
- puts("Board: TQM834x\n");
-
-#ifdef CONFIG_PCI
- volatile immap_t * immr;
- u32 w, f;
-
- immr = (immap_t *)CFG_IMMR;
- if (!(immr->reset.rcwh & HRCWH_PCI_HOST)) {
- printf("PCI: NOT in host mode..?!\n");
- return 0;
- }
-
- /* get bus width */
- w = 32;
- if (immr->reset.rcwh & HRCWH_64_BIT_PCI)
- w = 64;
-
- /* get clock */
- f = gd->pci_clk;
-
- printf("PCI1: %d bit, %d MHz\n", w, f / 1000000);
-#else
- printf("PCI: disabled\n");
-#endif
- return 0;
-}
-
-
-/**************************************************************************
- *
- * Local functions
- *
- *************************************************************************/
-
-/**************************************************************************
- * Detect the number of flash banks (1 or 2). Store it in
- * a global variable tqm834x_num_flash_banks.
- * Bank detection code based on the Monitor code.
- */
-static int detect_num_flash_banks(void)
-{
- typedef unsigned long FLASH_PORT_WIDTH;
- typedef volatile unsigned long FLASH_PORT_WIDTHV;
- FPWV *bank1_base;
- FPWV *bank2_base;
- FPW bank1_read;
- FPW bank2_read;
- ulong bank1_size;
- ulong bank2_size;
- ulong total_size;
-
- tqm834x_num_flash_banks = 2; /* assume two banks */
-
- /* Get bank 1 and 2 information */
- bank1_size = flash_get_size(CFG_FLASH_BASE, 0);
- debug("Bank1 size: %lu\n", bank1_size);
- bank2_size = flash_get_size(CFG_FLASH_BASE + bank1_size, 1);
- debug("Bank2 size: %lu\n", bank2_size);
- total_size = bank1_size + bank2_size;
-
- if (bank2_size > 0) {
- /* Seems like we've got bank 2, but maybe it's mirrored 1 */
-
- /* Set the base addresses */
- bank1_base = (FPWV *) (CFG_FLASH_BASE);
- bank2_base = (FPWV *) (CFG_FLASH_BASE + bank1_size);
-
- /* Put bank 2 into CFI command mode and read */
- bank2_base[0x55] = 0x00980098;
- IOSYNC;
- ISYNC;
- bank2_read = bank2_base[0x10];
-
- /* Read from bank 1 (it's in read mode) */
- bank1_read = bank1_base[0x10];
-
- /* Reset Flash */
- bank1_base[0] = 0x00F000F0;
- bank2_base[0] = 0x00F000F0;
-
- if (bank2_read == bank1_read) {
- /*
- * Looks like just one bank, but not sure yet. Let's
- * read from bank 2 in autosoelect mode.
- */
- bank2_base[0x0555] = 0x00AA00AA;
- bank2_base[0x02AA] = 0x00550055;
- bank2_base[0x0555] = 0x00900090;
- IOSYNC;
- ISYNC;
- bank2_read = bank2_base[0x10];
-
- /* Read from bank 1 (it's in read mode) */
- bank1_read = bank1_base[0x10];
-
- /* Reset Flash */
- bank1_base[0] = 0x00F000F0;
- bank2_base[0] = 0x00F000F0;
-
- if (bank2_read == bank1_read) {
- /*
- * In both CFI command and autoselect modes,
- * we got the some data reading from Flash.
- * There is only one mirrored bank.
- */
- tqm834x_num_flash_banks = 1;
- total_size = bank1_size;
- }
- }
- }
-
- debug("Number of flash banks detected: %d\n", tqm834x_num_flash_banks);
-
- /* set OR0 and BR0 */
- im->lbus.bank[0].or = CFG_OR_TIMING_FLASH |
- (-(total_size) & OR_GPCM_AM);
- im->lbus.bank[0].br = (CFG_FLASH_BASE & BR_BA) |
- (BR_MS_GPCM | BR_PS_32 | BR_V);
-
- return (0);
-}
-
-/*************************************************************************
- * Detect the size of a ddr bank. Sets CS bounds and CS config accordingly.
- */
-static long int get_ddr_bank_size(short cs, volatile long *base)
-{
- /* This array lists all valid DDR SDRAM configurations, with
- * Bank sizes in bytes. (Refer to Table 9-27 in the MPC8349E RM).
- * The last entry has to to have size equal 0 and is igonred during
- * autodection. Bank sizes must be in increasing order of size
- */
- struct {
- long row;
- long col;
- long size;
- } conf[] = {
- {CSCONFIG_ROW_BIT_12, CSCONFIG_COL_BIT_8, 32 << 20},
- {CSCONFIG_ROW_BIT_12, CSCONFIG_COL_BIT_9, 64 << 20},
- {CSCONFIG_ROW_BIT_12, CSCONFIG_COL_BIT_10, 128 << 20},
- {CSCONFIG_ROW_BIT_13, CSCONFIG_COL_BIT_9, 128 << 20},
- {CSCONFIG_ROW_BIT_13, CSCONFIG_COL_BIT_10, 256 << 20},
- {CSCONFIG_ROW_BIT_13, CSCONFIG_COL_BIT_11, 512 << 20},
- {CSCONFIG_ROW_BIT_14, CSCONFIG_COL_BIT_10, 512 << 20},
- {CSCONFIG_ROW_BIT_14, CSCONFIG_COL_BIT_11, 1024 << 20},
- {0, 0, 0}
- };
-
- int i;
- int detected;
- long size;
-
- detected = -1;
- for(i = 0; conf[i].size != 0; ++i) {
-
- /* set sdram bank configuration */
- set_cs_config(cs, CSCONFIG_EN | conf[i].col | conf[i].row);
-
- debug("Getting RAM size...\n");
- size = get_ram_size(base, DDR_MAX_SIZE_PER_CS);
-
- if((size == conf[i].size) && (i == detected + 1))
- detected = i;
-
- debug("Trying %ld x %ld (%ld MiB) at addr %p, detected: %ld MiB\n",
- conf[i].row,
- conf[i].col,
- conf[i].size >> 20,
- base,
- size >> 20);
- }
-
- if(detected == -1){
- /* disable empty cs */
- debug("\nNo valid configurations for CS%d, disabling...\n", cs);
- set_cs_config(cs, 0);
- return 0;
- }
-
- debug("\nDetected configuration %ld x %ld (%ld MiB) at addr %p\n",
- conf[detected].row, conf[detected].col, conf[detected].size >> 20, base);
-
- /* configure cs ro detected params */
- set_cs_config(cs, CSCONFIG_EN | conf[detected].row |
- conf[detected].col);
-
- set_cs_bounds(cs, (long)base, conf[detected].size);
-
- return(conf[detected].size);
-}
-
-/**************************************************************************
- * Sets DDR bank CS bounds.
- */
-static void set_cs_bounds(short cs, long base, long size)
-{
- debug("Setting bounds %08x, %08x for cs %d\n", base, size, cs);
- if(size == 0){
- im->ddr.csbnds[cs].csbnds = 0x00000000;
- } else {
- im->ddr.csbnds[cs].csbnds =
- ((base >> CSBNDS_SA_SHIFT) & CSBNDS_SA) |
- (((base + size - 1) >> CSBNDS_EA_SHIFT) &
- CSBNDS_EA);
- }
- SYNC;
-}
-
-/**************************************************************************
- * Sets DDR banks CS configuration.
- * config == 0x00000000 disables the CS.
- */
-static void set_cs_config(short cs, long config)
-{
- debug("Setting config %08x for cs %d\n", config, cs);
- im->ddr.cs_config[cs] = config;
- SYNC;
-}
-
-/**************************************************************************
- * Sets DDR clocks, timings and configuration.
- */
-static void set_ddr_config(void) {
- /* clock control */
- im->ddr.sdram_clk_cntl = DDR_SDRAM_CLK_CNTL_SS_EN |
- DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05;
- SYNC;
-
- /* timing configuration */
- im->ddr.timing_cfg_1 =
- (4 << TIMING_CFG1_PRETOACT_SHIFT) |
- (7 << TIMING_CFG1_ACTTOPRE_SHIFT) |
- (4 << TIMING_CFG1_ACTTORW_SHIFT) |
- (5 << TIMING_CFG1_REFREC_SHIFT) |
- (3 << TIMING_CFG1_WRREC_SHIFT) |
- (3 << TIMING_CFG1_ACTTOACT_SHIFT) |
- (1 << TIMING_CFG1_WRTORD_SHIFT) |
- (TIMING_CFG1_CASLAT & TIMING_CASLAT);
-
- im->ddr.timing_cfg_2 =
- TIMING_CFG2_CPO_DEF |
- (2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT);
- SYNC;
-
- /* don't enable DDR controller yet */
- im->ddr.sdram_cfg =
- SDRAM_CFG_SREN |
- SDRAM_CFG_SDRAM_TYPE_DDR1;
- SYNC;
-
- /* Set SDRAM mode */
- im->ddr.sdram_mode =
- ((DDR_MODE_EXT_MODEREG | DDR_MODE_WEAK) <<
- SDRAM_MODE_ESD_SHIFT) |
- ((DDR_MODE_MODEREG | DDR_MODE_BLEN_4) <<
- SDRAM_MODE_SD_SHIFT) |
- ((DDR_MODE_CASLAT << SDRAM_MODE_SD_SHIFT) &
- MODE_CASLAT);
- SYNC;
-
- /* Set fast SDRAM refresh rate */
- im->ddr.sdram_interval =
- (DDR_REFINT_166MHZ_7US << SDRAM_INTERVAL_REFINT_SHIFT) |
- (DDR_BSTOPRE << SDRAM_INTERVAL_BSTOPRE_SHIFT);
- SYNC;
-
- /* Workaround for DDR6 Erratum
- * see MPC8349E Device Errata Rev.8, 2/2006
- * This workaround influences the MPC internal "input enables"
- * dependent on CAS latency and MPC revision. According to errata
- * sheet the internal reserved registers for this workaround are
- * not available from revision 2.0 and up.
- */
-
- /* Get REVID from register SPRIDR. Skip workaround if rev >= 2.0
- * (0x200)
- */
- if ((im->sysconf.spridr & SPRIDR_REVID) < 0x200) {
-
- /* There is a internal reserved register at IMMRBAR+0x2F00
- * which has to be written with a certain value defined by
- * errata sheet.
- */
- u32 *reserved_p = (u32 *)((u8 *)im + 0x2f00);
-
-#if defined(DDR_CASLAT_20)
- *reserved_p = 0x201c0000;
-#else
- *reserved_p = 0x202c0000;
-#endif
- }
-}