* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
* Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
*
- * (C) Copyright 2007-2008
+ * (C) Copyright 2007-2013
* 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/* define DEBUG for debugging output (obviously ;-)) */
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/io.h>
-#include <ppc440.h>
+#include <asm/cache.h>
+#include <asm/ppc440.h>
#include <watchdog.h>
/*
* memory.
*
* If at some time this restriction doesn't apply anymore, just define
- * CFG_ENABLE_SDRAM_CACHE in the board config file and this code should setup
+ * CONFIG_4xx_DCACHE in the board config file and this code should setup
* everything correctly.
*/
-#ifdef CFG_ENABLE_SDRAM_CACHE
+#ifdef CONFIG_4xx_DCACHE
#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */
#else
#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */
extern int denali_wait_for_dlllock(void);
extern void denali_core_search_data_eye(void);
extern void dcbz_area(u32 start_address, u32 num_bytes);
-extern void dflush(void);
static u32 is_ecc_enabled(void)
{
puts(" (ECC not");
get_sys_info(&board_cfg);
- printf(" enabled, %d MHz", (board_cfg.freqPLB * 2) / 1000000);
+ printf(" enabled, %ld MHz", (board_cfg.freqPLB * 2) / 1000000);
mfsdram(DDR0_03, val);
val = DDR0_03_CASLAT_DECODE(val);
{
u32 val;
u32 current_addr = start_address;
+ u32 size;
int bytes_remaining;
sync();
* Because of 440EPx errata CHIP 11, we don't touch the last 256
* bytes of SDRAM.
*/
- bytes_remaining = num_bytes - CFG_MEM_TOP_HIDE;
+ bytes_remaining = num_bytes - CONFIG_SYS_MEM_TOP_HIDE;
/*
* We have to write the ECC bytes by zeroing and flushing in smaller
* watchdog.
*/
while (bytes_remaining > 0) {
- dcbz_area(current_addr, min((64 << 20), bytes_remaining));
+ size = min((64 << 20), bytes_remaining);
+
+ /* Write zero's to SDRAM */
+ dcbz_area(current_addr, size);
+
+ /* Write modified dcache lines back to memory */
+ clean_dcache_range(current_addr, current_addr + size);
+
current_addr += 64 << 20;
bytes_remaining -= 64 << 20;
WATCHDOG_RESET();
}
- dflush();
sync();
wait_ddr_idle();
* initdram -- 440EPx's DDR controller is a DENALI Core
*
************************************************************************/
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
{
-#if 0 /* test-only: will remove this define later, when ECC problems are solved! */
- /* CL=3 */
- mtsdram(DDR0_02, 0x00000000);
-
- mtsdram(DDR0_00, 0x0000190A);
- mtsdram(DDR0_01, 0x01000000);
- mtsdram(DDR0_03, 0x02030603); /* A suitable burst length was taken. CAS is right for our board */
-
- mtsdram(DDR0_04, 0x0A030300);
- mtsdram(DDR0_05, 0x02020308);
- mtsdram(DDR0_06, 0x0103C812);
- mtsdram(DDR0_07, 0x00090100);
- mtsdram(DDR0_08, 0x02c80001);
- mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000300);
- mtsdram(DDR0_11, 0x000CC800);
- mtsdram(DDR0_12, 0x00000003);
- mtsdram(DDR0_14, 0x00000000);
- mtsdram(DDR0_17, 0x1e000000);
- mtsdram(DDR0_18, 0x1e1e1e1e);
- mtsdram(DDR0_19, 0x1e1e1e1e);
- mtsdram(DDR0_20, 0x0B0B0B0B);
- mtsdram(DDR0_21, 0x0B0B0B0B);
-#ifdef CONFIG_DDR_ECC
- mtsdram(DDR0_22, 0x00267F0B | DDR0_22_CTRL_RAW_ECC_ENABLE); /* enable ECC */
-#else
- mtsdram(DDR0_22, 0x00267F0B);
-#endif
-
- mtsdram(DDR0_23, 0x01000000);
- mtsdram(DDR0_24, 0x01010001);
-
- mtsdram(DDR0_26, 0x2D93028A);
- mtsdram(DDR0_27, 0x0784682B);
-
- mtsdram(DDR0_28, 0x00000080);
- mtsdram(DDR0_31, 0x00000000);
- mtsdram(DDR0_42, 0x01000006);
-
- mtsdram(DDR0_43, 0x030A0200);
- mtsdram(DDR0_44, 0x00000003);
- mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
-#else
+#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_LCD4_LWMON5)
/* CL=4 */
mtsdram(DDR0_02, 0x00000000);
mtsdram(DDR0_07, 0x00090100);
mtsdram(DDR0_08, 0x03c80001);
mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000300);
+ mtsdram(DDR0_10, 0x00000100);
mtsdram(DDR0_11, 0x000CC800);
mtsdram(DDR0_12, 0x00000003);
mtsdram(DDR0_14, 0x00000000);
mtsdram(DDR0_43, 0x050A0200);
mtsdram(DDR0_44, 0x00000005);
mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
-#endif
denali_wait_for_dlllock();
/* -----------------------------------------------------------+
* Perform data eye search if requested.
* ----------------------------------------------------------*/
- program_tlb(0, CFG_SDRAM_BASE, CFG_MBYTES_SDRAM << 20,
+ program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
TLB_WORD2_I_ENABLE);
denali_core_search_data_eye();
- remove_tlb(CFG_SDRAM_BASE, CFG_MBYTES_SDRAM << 20);
+ remove_tlb(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20);
#endif
/*
* Program tlb entries for this size (dynamic)
*/
- program_tlb(0, CFG_SDRAM_BASE, CFG_MBYTES_SDRAM << 20,
+ program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
MY_TLB_WORD2_I_ENABLE);
+#if defined(CONFIG_DDR_ECC)
+#if defined(CONFIG_4xx_DCACHE)
+ /*
+ * If ECC is enabled, initialize the parity bits.
+ */
+ program_ecc(0, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
+#else /* CONFIG_4xx_DCACHE */
/*
* Setup 2nd TLB with same physical address but different virtual address
* with cache enabled. This is done for fast ECC generation.
*/
- program_tlb(0, CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20, 0);
+ program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
-#ifdef CONFIG_DDR_ECC
/*
* If ECC is enabled, initialize the parity bits.
*/
- program_ecc(CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20, 0);
-#endif
+ program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
+
+ /*
+ * Now after initialization (auto-calibration and ECC generation)
+ * remove the TLB entries with caches enabled and program again with
+ * desired cache functionality
+ */
+ remove_tlb(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20);
+#endif /* CONFIG_4xx_DCACHE */
+#endif /* CONFIG_DDR_ECC */
/*
* Clear possible errors resulting from data-eye-search.
* exceptions are enabled.
*/
set_mcsr(get_mcsr());
+#endif /* CONFIG_SPL_BUILD */
- return (CFG_MBYTES_SDRAM << 20);
+ return (CONFIG_SYS_MBYTES_SDRAM << 20);
}
projects / karo-tx-uboot.git / blobdiff