diff options
Diffstat (limited to 'board/freescale/m5271evb/m5271evb.c')
| -rw-r--r-- | board/freescale/m5271evb/m5271evb.c | 115 | 
1 files changed, 0 insertions, 115 deletions
| diff --git a/board/freescale/m5271evb/m5271evb.c b/board/freescale/m5271evb/m5271evb.c deleted file mode 100644 index 5981a2711..000000000 --- a/board/freescale/m5271evb/m5271evb.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * (C) Copyright 2000-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier:	GPL-2.0+ - */ - -#include <common.h> -#include <asm/immap.h> - -int checkboard (void) { -	puts ("Board: Freescale M5271EVB\n"); -	return 0; -}; - -phys_size_t initdram (int board_type) { - -	int i; - -	/* Enable Address lines 23-21 and lower 16bits of data path */ -	mbar_writeByte(MCF_GPIO_PAR_AD, MCF_GPIO_AD_ADDR23 | -			MCF_GPIO_AD_ADDR22 | MCF_GPIO_AD_ADDR21 | -			MCF_GPIO_AD_DATAL); - -	/* Set CS2 pin to be SD_CS0 */ -	mbar_writeByte(MCF_GPIO_PAR_CS, mbar_readByte(MCF_GPIO_PAR_CS) -			| MCF_GPIO_PAR_CS_PAR_CS2); - -	/* Configure SDRAM Control Pin Assignemnt Register */ -	mbar_writeByte(MCF_GPIO_PAR_SDRAM, MCF_GPIO_SDRAM_CSSDCS_00 | -			MCF_GPIO_SDRAM_SDWE | MCF_GPIO_SDRAM_SCAS | -			MCF_GPIO_SDRAM_SRAS | MCF_GPIO_SDRAM_SCKE | -			MCF_GPIO_SDRAM_SDCS_11); -	asm(" nop"); - -	/* -	 * Check to see if the SDRAM has already been initialized -	 * by a run control tool -	 */ -	if (!(mbar_readLong(MCF_SDRAMC_DACR0) & MCF_SDRAMC_DACRn_RE)) { -		/* Initialize DRAM Control Register: DCR */ -		mbar_writeShort(MCF_SDRAMC_DCR, -				MCF_SDRAMC_DCR_RTIM(2) -				| MCF_SDRAMC_DCR_RC(0x2E)); -		asm(" nop"); - -		/* -		 * Initialize DACR0 -		 * -		 * CASL: 01 -		 * CBM: cmd at A20, bank select bits 21 and up -		 * PS: 32bit port size -		 */ -		mbar_writeLong(MCF_SDRAMC_DACR0, -				MCF_SDRAMC_DACRn_BA(CONFIG_SYS_SDRAM_BASE>>18) -				| MCF_SDRAMC_DACRn_CASL(1) -				| MCF_SDRAMC_DACRn_CBM(3) -				| MCF_SDRAMC_DACRn_PS(0)); -		asm(" nop"); - -		/* Initialize DMR0 */ -		mbar_writeLong(MCF_SDRAMC_DMR0, -				MCF_SDRAMC_DMRn_BAM_16M -				| MCF_SDRAMC_DMRn_V); -		asm(" nop"); - -		/* Set IP bit in DACR */ -		mbar_writeLong(MCF_SDRAMC_DACR0, mbar_readLong(MCF_SDRAMC_DACR0) -				| MCF_SDRAMC_DACRn_IP); -		asm(" nop"); - -		/* Wait at least 20ns to allow banks to precharge */ -		for (i = 0; i < 5; i++) -			asm(" nop"); - -		/* Write to this block to initiate precharge */ -		*(u32 *)(CONFIG_SYS_SDRAM_BASE) = 0xa5a5a5a5; -		asm(" nop"); - -		/* Set RE bit in DACR */ -		mbar_writeLong(MCF_SDRAMC_DACR0, mbar_readLong(MCF_SDRAMC_DACR0) -				| MCF_SDRAMC_DACRn_RE); - -		/* Wait for at least 8 auto refresh cycles to occur */ -		for (i = 0; i < 2000; i++) -			asm(" nop"); - -		/* Finish the configuration by issuing the MRS */ -		mbar_writeLong(MCF_SDRAMC_DACR0, mbar_readLong(MCF_SDRAMC_DACR0) -				| MCF_SDRAMC_DACRn_MRS); -		asm(" nop"); - -		/* -		 * Write to the SDRAM Mode Register A0-A11 = 0x400 -		 * -		 * Write Burst Mode = Programmed Burst Length -		 * Op Mode = Standard Op -		 * CAS Latency = 2 -		 * Burst Type = Sequential -		 * Burst Length = 1 -		 */ -		*(u32 *)(CONFIG_SYS_SDRAM_BASE + 0x400) = 0xa5a5a5a5; -		asm(" nop"); -	} - -	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; -}; - -int testdram (void) { - -	/* TODO: XXX XXX XXX */ -	printf ("DRAM test not implemented!\n"); - -	return (0); -} |