summaryrefslogtreecommitdiffstats
path: root/board/netstal/hcu5/sdram.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/netstal/hcu5/sdram.c')
-rw-r--r--board/netstal/hcu5/sdram.c283
1 files changed, 0 insertions, 283 deletions
diff --git a/board/netstal/hcu5/sdram.c b/board/netstal/hcu5/sdram.c
deleted file mode 100644
index e5ac46b549..0000000000
--- a/board/netstal/hcu5/sdram.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * (C) Copyright 2007
- * Niklaus Giger (Niklaus.Giger@netstal.com)
- * (C) Copyright 2006
- * Sylvie Gohl, AMCC/IBM, gohl.sylvie@fr.ibm.com
- * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
- * Thierry Roman, AMCC/IBM, thierry_roman@fr.ibm.com
- * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
- * Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
- *
- * (C) Copyright 2006
- * Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- * 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 DEBUG for debug output */
-#undef DEBUG
-
-#include <common.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/mmu.h>
-#include <asm/cache.h>
-#include <asm/ppc440.h>
-
-void hcu_led_set(u32 value);
-void dcbz_area(u32 start_address, u32 num_bytes);
-
-#define ECC_RAM 0x03267F0B
-#define NO_ECC_RAM 0x00267F0B
-
-#define HCU_HW_SDRAM_CONFIG_MASK 0x7
-
-#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE
- /* disable caching on DDR2 */
-
-void board_add_ram_info(int use_default)
-{
- PPC4xx_SYS_INFO board_cfg;
- u32 val;
-
- mfsdram(DDR0_22, val);
- val &= DDR0_22_CTRL_RAW_MASK;
- switch (val) {
- case DDR0_22_CTRL_RAW_ECC_DISABLE:
- puts(" (ECC disabled");
- break;
- case DDR0_22_CTRL_RAW_ECC_CHECK_ONLY:
- puts(" (ECC check only");
- break;
- case DDR0_22_CTRL_RAW_NO_ECC_RAM:
- puts(" (no ECC ram");
- break;
- case DDR0_22_CTRL_RAW_ECC_ENABLE:
- puts(" (ECC enabled");
- break;
- }
-
- get_sys_info(&board_cfg);
- printf(", %lu MHz", (board_cfg.freqPLB * 2) / 1000000);
-
- mfsdram(DDR0_03, val);
- val = DDR0_03_CASLAT_DECODE(val);
- printf(", CL%d)", val);
-}
-
-/*--------------------------------------------------------------------
- * wait_for_dlllock.
- *--------------------------------------------------------------------*/
-static int wait_for_dlllock(void)
-{
- unsigned long val;
- int wait = 0;
-
- /* -----------------------------------------------------------+
- * Wait for the DCC master delay line to finish calibration
- * ----------------------------------------------------------*/
- mtdcr(SDRAM0_CFGADDR, DDR0_17);
- val = DDR0_17_DLLLOCKREG_UNLOCKED;
-
- while (wait != 0xffff) {
- val = mfdcr(SDRAM0_CFGDATA);
- if ((val & DDR0_17_DLLLOCKREG_MASK) ==
- DDR0_17_DLLLOCKREG_LOCKED)
- /* dlllockreg bit on */
- return 0;
- else
- wait++;
- }
- debug("0x%04x: DDR0_17 Value (dlllockreg bit): 0x%08x\n", wait, val);
- debug("Waiting for dlllockreg bit to raise\n");
-
- return -1;
-}
-
-/***********************************************************************
- *
- * sdram_panic -- Panic if we cannot configure the sdram correctly
- *
- ************************************************************************/
-void sdram_panic(const char *reason)
-{
- printf("\n%s: reason %s", __FUNCTION__, reason);
- hcu_led_set(0xff);
- while (1) {
- }
- /* Never return */
-}
-
-#ifdef CONFIG_DDR_ECC
-void blank_string(int size)
-{
- int i;
-
- for (i=0; i<size; i++)
- putc('\b');
- for (i=0; i<size; i++)
- putc(' ');
- for (i=0; i<size; i++)
- putc('\b');
-}
-/*---------------------------------------------------------------------------+
- * program_ecc.
- *---------------------------------------------------------------------------*/
-static void program_ecc(unsigned long start_address, unsigned long num_bytes)
-{
- u32 val;
- char str[] = "ECC generation -";
-#if defined(CONFIG_PRAM)
- u32 *magicPtr;
- u32 magic;
-
- if ((mfspr(SPRN_DBCR0) & 0x80000000) == 0) {
- /* only if no external debugger is alive!
- * Check whether vxWorks is using EDR logging, if yes zero
- * also PostMortem and user reserved memory
- */
- magicPtr = (u32 *)(start_address + num_bytes -
- (CONFIG_PRAM*1024) + sizeof(u32));
- magic = in_be32(magicPtr);
- debug("%s: CONFIG_PRAM %d kB magic 0x%x 0x%p\n",
- __FUNCTION__, CONFIG_PRAM,
- magicPtr, magic);
- if (magic == 0xbeefbabe) {
- printf("%s: preserving at %p\n", __FUNCTION__, magicPtr);
- num_bytes -= (CONFIG_PRAM*1024) - PM_RESERVED_MEM;
- }
- }
-#endif
-
- sync();
-
- puts(str);
-
- /* ECC bit set method for cached memory */
- /* Fast method, no noticeable delay */
- dcbz_area(start_address, num_bytes);
- /* Write modified dcache lines back to memory */
- clean_dcache_range(start_address, start_address + num_bytes);
- blank_string(strlen(str));
-
- /* Clear error status */
- mfsdram(DDR0_00, val);
- mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL);
-
- /*
- * Clear possible ECC errors
- * If not done, then we could get an interrupt later on when
- * exceptions are enabled.
- */
- mtspr(SPRN_MCSR, mfspr(SPRN_MCSR));
-
- /* Set 'int_mask' parameter to functionnal value */
- mfsdram(DDR0_01, val);
- mtsdram(DDR0_01, ((val &~ DDR0_01_INT_MASK_MASK) |
- DDR0_01_INT_MASK_ALL_OFF));
-
- return;
-}
-#endif
-
-
-/***********************************************************************
- *
- * initdram -- 440EPx's DDR controller is a DENALI Core
- *
- ************************************************************************/
-phys_size_t initdram (int board_type)
-{
- unsigned int dram_size = 0;
-
- mtsdram(DDR0_02, 0x00000000);
-
- /* Values must be kept in sync with Excel-table <<A0001492.>> ! */
- mtsdram(DDR0_00, 0x0000190A);
- mtsdram(DDR0_01, 0x01000000);
- mtsdram(DDR0_03, 0x02030602);
- mtsdram(DDR0_04, 0x0A020200);
- mtsdram(DDR0_05, 0x02020307);
- switch (in_be16((u16 *)HCU_HW_VERSION_REGISTER) & HCU_HW_SDRAM_CONFIG_MASK) {
- case 1:
- dram_size = 256 * 1024 * 1024 ;
- mtsdram(DDR0_06, 0x0102C812); /* 256MB RAM */
- mtsdram(DDR0_11, 0x0014C800); /* 256MB RAM */
- mtsdram(DDR0_43, 0x030A0200); /* 256MB RAM */
- break;
- case 0:
- default:
- dram_size = 128 * 1024 * 1024 ;
- mtsdram(DDR0_06, 0x0102C80D); /* 128MB RAM */
- mtsdram(DDR0_11, 0x000FC800); /* 128MB RAM */
- mtsdram(DDR0_43, 0x030A0300); /* 128MB RAM */
- break;
- }
- mtsdram(DDR0_07, 0x00090100);
-
- /*
- * TCPD=200 cycles of clock input is required to lock the DLL.
- * CKE must be HIGH the entire time.mtsdram(DDR0_08, 0x02C80001);
- */
- mtsdram(DDR0_08, 0x02C80001);
- mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000100);
- mtsdram(DDR0_12, 0x00000003);
- mtsdram(DDR0_14, 0x00000000);
- mtsdram(DDR0_17, 0x1D000000);
- mtsdram(DDR0_18, 0x1D1D1D1D);
- mtsdram(DDR0_19, 0x1D1D1D1D);
- mtsdram(DDR0_20, 0x0B0B0B0B);
- mtsdram(DDR0_21, 0x0B0B0B0B);
-#ifdef CONFIG_DDR_ECC
- mtsdram(DDR0_22, ECC_RAM);
-#else
- mtsdram(DDR0_22, NO_ECC_RAM);
-#endif
-
- mtsdram(DDR0_23, 0x00000000);
- mtsdram(DDR0_24, 0x01020001);
- mtsdram(DDR0_26, 0x2D930517);
- mtsdram(DDR0_27, 0x00008236);
- mtsdram(DDR0_28, 0x00000000);
- mtsdram(DDR0_31, 0x00000000);
- mtsdram(DDR0_42, 0x01000006);
- mtsdram(DDR0_44, 0x00000003);
- mtsdram(DDR0_02, 0x00000001);
- wait_for_dlllock();
- mtsdram(DDR0_00, 0x40000000); /* Zero init bit */
-
- /*
- * Program tlb entries for this size (dynamic)
- */
- remove_tlb(CONFIG_SYS_SDRAM_BASE, 256 << 20);
- program_tlb(0, 0, dram_size, TLB_WORD2_W_ENABLE | TLB_WORD2_I_ENABLE);
-
- /*
- * Setup 2nd TLB with same physical address but different virtual
- * address with cache enabled. This is done for fast ECC generation.
- */
- program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, dram_size, 0);
-
-#ifdef CONFIG_DDR_ECC
- /*
- * If ECC is enabled, initialize the parity bits.
- */
- program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, dram_size);
-#endif
-
- return (dram_size);
-}
OpenPOWER on IntegriCloud