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d4bd2ca2aa
On the km8321 boards is CONFIG_SYS_DDRCDR not defined, which leads to the DDRCDR not being configured at startup and still containing the reset value. The required settings for our km8321 hardware designs are different than the reset value and must be set with CONFIG_SYS_DDRCDR, that is used by mpc83xx's cpu_init_f function at early CPU initialization. The important settings are the DDR2 internal voltage level and the half-strength "drivers". In our case where the DRAM chips are soldered on board and the routing for these signals under control, half-strength is sufficient as a few measurements done in the lasts have shown. Since all the hardware qualification tests have been performed with half strength, the nominal strength settings are removed in favor of the default reset half strength settings. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
144 lines
3.9 KiB
C
144 lines
3.9 KiB
C
/*
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* Copyright (C) 2006 Freescale Semiconductor, Inc.
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* Dave Liu <daveliu@freescale.com>
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*
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* Copyright (C) 2007 Logic Product Development, Inc.
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* Peter Barada <peterb@logicpd.com>
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*
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* Copyright (C) 2007 MontaVista Software, Inc.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*
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* (C) Copyright 2008
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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* (C) Copyright 2010
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* Lukas Roggli, KEYMILE Ltd, lukas.roggli@keymile.com
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*
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* (C) Copyright 2010-2011
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* Thomas Reufer, KEYMILE Ltd, thomas.reufer@keymile.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __CONFIG_KM8321_COMMON_H
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#define __CONFIG_KM8321_COMMON_H
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#define CONFIG_DISPLAY_BOARDINFO
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/*
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* High Level Configuration Options
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*/
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#define CONFIG_QE /* Has QE */
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#define CONFIG_MPC832x /* MPC832x CPU specific */
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#define CONFIG_KM8321 /* Keymile PBEC8321 board specific */
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#define CONFIG_KM_DEF_ARCH "arch=ppc_8xx\0"
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/* include common defines/options for all 83xx Keymile boards */
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#include "km83xx-common.h"
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/*
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* System IO Config
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*/
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#define CONFIG_SYS_SICRL SICRL_IRQ_CKS
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/*
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* Hardware Reset Configuration Word
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*/
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#define CONFIG_SYS_HRCW_LOW (\
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HRCWL_LCL_BUS_TO_SCB_CLK_1X1 | \
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HRCWL_DDR_TO_SCB_CLK_2X1 | \
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HRCWL_CSB_TO_CLKIN_2X1 | \
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HRCWL_CORE_TO_CSB_2_5X1 | \
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HRCWL_CE_PLL_VCO_DIV_2 | \
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HRCWL_CE_TO_PLL_1X3)
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#define CONFIG_SYS_HRCW_HIGH (\
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HRCWH_PCI_AGENT | \
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HRCWH_PCI_ARBITER_DISABLE | \
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HRCWH_CORE_ENABLE | \
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HRCWH_FROM_0X00000100 | \
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HRCWH_BOOTSEQ_DISABLE | \
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HRCWH_SW_WATCHDOG_DISABLE | \
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HRCWH_ROM_LOC_LOCAL_16BIT | \
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HRCWH_BIG_ENDIAN | \
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HRCWH_LALE_NORMAL)
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#define CONFIG_SYS_DDRCDR (\
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DDRCDR_EN | \
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DDRCDR_PZ_MAXZ | \
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DDRCDR_NZ_MAXZ | \
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DDRCDR_M_ODR)
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#define CONFIG_SYS_DDR_CS0_BNDS 0x0000007f
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#define CONFIG_SYS_DDR_SDRAM_CFG (SDRAM_CFG_SDRAM_TYPE_DDR2 | \
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SDRAM_CFG_32_BE | \
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SDRAM_CFG_SREN | \
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SDRAM_CFG_HSE)
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#define CONFIG_SYS_DDR_SDRAM_CFG2 0x00401000
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#define CONFIG_SYS_DDR_CLK_CNTL (DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05)
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#define CONFIG_SYS_DDR_INTERVAL ((0x064 << SDRAM_INTERVAL_BSTOPRE_SHIFT) | \
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(0x200 << SDRAM_INTERVAL_REFINT_SHIFT))
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#define CONFIG_SYS_DDR_CS0_CONFIG (CSCONFIG_EN | CSCONFIG_AP | \
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CSCONFIG_ODT_WR_CFG | \
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CSCONFIG_ROW_BIT_13 | \
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CSCONFIG_COL_BIT_10)
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#define CONFIG_SYS_DDR_MODE 0x47860242
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#define CONFIG_SYS_DDR_MODE2 0x8080c000
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#define CONFIG_SYS_DDR_TIMING_0 ((2 << TIMING_CFG0_MRS_CYC_SHIFT) | \
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(8 << TIMING_CFG0_ODT_PD_EXIT_SHIFT) | \
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(2 << TIMING_CFG0_PRE_PD_EXIT_SHIFT) | \
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(2 << TIMING_CFG0_ACT_PD_EXIT_SHIFT) | \
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(0 << TIMING_CFG0_WWT_SHIFT) | \
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(0 << TIMING_CFG0_RRT_SHIFT) | \
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(0 << TIMING_CFG0_WRT_SHIFT) | \
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(0 << TIMING_CFG0_RWT_SHIFT))
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#define CONFIG_SYS_DDR_TIMING_1 ((TIMING_CFG1_CASLAT_40) | \
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(2 << TIMING_CFG1_WRTORD_SHIFT) | \
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(2 << TIMING_CFG1_ACTTOACT_SHIFT) | \
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(3 << TIMING_CFG1_WRREC_SHIFT) | \
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(7 << TIMING_CFG1_REFREC_SHIFT) | \
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(3 << TIMING_CFG1_ACTTORW_SHIFT) | \
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(7 << TIMING_CFG1_ACTTOPRE_SHIFT) | \
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(3 << TIMING_CFG1_PRETOACT_SHIFT))
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#define CONFIG_SYS_DDR_TIMING_2 ((8 << TIMING_CFG2_FOUR_ACT_SHIFT) | \
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(3 << TIMING_CFG2_CKE_PLS_SHIFT) | \
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(2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT) | \
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(2 << TIMING_CFG2_RD_TO_PRE_SHIFT) | \
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(3 << TIMING_CFG2_WR_LAT_DELAY_SHIFT) | \
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(0 << TIMING_CFG2_ADD_LAT_SHIFT) | \
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(5 << TIMING_CFG2_CPO_SHIFT))
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#define CONFIG_SYS_DDR_TIMING_3 0x00000000
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#define CONFIG_SYS_KMBEC_FPGA_BASE 0xE8000000
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#define CONFIG_SYS_KMBEC_FPGA_SIZE 128
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/* EEprom support */
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#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
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/*
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* Local Bus Configuration & Clock Setup
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*/
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#define CONFIG_SYS_LCRR_DBYP 0x80000000
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#define CONFIG_SYS_LCRR_EADC 0x00010000
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#define CONFIG_SYS_LCRR_CLKDIV 0x00000002
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#define CONFIG_SYS_LBC_LBCR 0x00000000
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/*
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* MMU Setup
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*/
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#define CONFIG_SYS_IBAT7L (0)
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#define CONFIG_SYS_IBAT7U (0)
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#define CONFIG_SYS_DBAT7L CONFIG_SYS_IBAT7L
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#define CONFIG_SYS_DBAT7U CONFIG_SYS_IBAT7U
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#endif /* __CONFIG_KM8321_COMMON_H */
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