// ---------------------------------------------------------------------------- // ATMEL Microcontroller Software Support // ---------------------------------------------------------------------------- // Copyright (c) 2008, Atmel Corporation // // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // - Redistributions of source code must retain the above copyright notice, // this list of conditions and the disclaimer below. // // Atmel's name may not be used to endorse or promote products derived from // this software without specific prior written permission. // // DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE // DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // ---------------------------------------------------------------------------- //---------------------------------------------------------------------------- // File Name : at91sam9260-ek-sdram.ini // Object : Generic Macro File for KEIL //---------------------------------------------------------------------------- //---------------------------------------------------------------------------- // _MapRAMAt0() // Function description: Maps RAM at 0. //---------------------------------------------------------------------------- DEFINE INT __mac_i; FUNC void _MapRAMAt0(){ printf ("Changing mapping: RAM mapped to 0 \n"); // Test and set Remap __mac_i = _RDWORD(0xFFFFEF00); if ( ((__mac_i & 0x01) == 0) || ((__mac_i & 0x02) == 0)) { _WDWORD(0xFFFFEF00,0x03); // toggle remap bits } else { printf ("------------------------------- The Remap is done -----------------------------------\n"); } } //---------------------------------------------------------------------------- // _InitRSTC() // Function description // Initializes the RSTC (Reset controller). // This makes sense since the default is to not allow user resets, which makes it impossible to // apply a second RESET via J-Link //---------------------------------------------------------------------------- FUNC void _InitRSTC() { _WDWORD(0xFFFFFD08,0xA5000001); // Allow user reset } //---------------------------------------------------------------------------- // // _PllSetting() // Function description // Initializes the PMC. // 1. Enable the Main Oscillator // 2. Configure PLL // 3. Switch Master //---------------------------------------------------------------------------- FUNC void __PllSetting() { if ((_RDWORD(0xFFFFFC30)&0x3) != 0 ) { // Disable all PMC interrupt ( $$ JPP) // AT91C_PMC_IDR ((AT91_REG *) 0xFFFFFC64) //(PMC) Interrupt Disable Register // pPmc->PMC_IDR = 0xFFFFFFFF; _WDWORD(0xFFFFFC64,0xFFFFFFFF); // AT91C_PMC_PCDR ((AT91_REG *) 0xFFFFFC14) //(PMC) Peripheral Clock Disable Register _WDWORD(0xFFFFFC14,0xFFFFFFFF); // Disable all clock only Processor clock is enabled. _WDWORD(0xFFFFFC04,0xFFFFFFFE); // AT91C_PMC_MCKR ((AT91_REG *) 0xFFFFFC30) // (PMC) Master Clock Register _WDWORD(0xFFFFFC30,0x00000001); _sleep_(10); // write reset value to PLLA and PLLB // AT91C_PMC_PLLAR ((AT91_REG *) 0xFFFFFC28) // (PMC) PLL A Register _WDWORD(0xFFFFFC28,0x00003F00); // AT91C_PMC_PLLBR ((AT91_REG *) 0xFFFFFC2C) // (PMC) PLL B Register _WDWORD(0xFFFFFC2C,0x00003F00); _sleep_(10); printf ( "------------------------------- PLL Enable -----------------------------------------"); } else { printf( " ********* Core in SLOW CLOCK mode ********* "); } } //---------------------------------------------------------------------------- // // __PllSetting100MHz() // Function description // Set core at 200 MHz and MCK at 100 MHz //---------------------------------------------------------------------------- FUNC void __PllSetting100MHz() { printf( "------------------------------- PLL Set at 100 MHz ----------------------------------"); //* pPmc->PMC_MOR = (( AT91C_CKGR_OSCOUNT & (0x40 <<8) | AT91C_CKGR_MOSCEN )); _WDWORD(0xFFFFFC20,0x00004001); _sleep_(10); // AT91C_PMC_MCKR ((AT91_REG *) 0xFFFFFC30) // (PMC) Master Clock Register _WDWORD(0xFFFFFC30,0x00000001); _sleep_(10); //* AT91C_BASE_CKGR->CKGR_PLLAR = (AT91C_CKGR_SRCA | ((96 << 16) & AT91C_CKGR_MULA) | // (AT91C_CKGR_PLLACOUNT | (AT91C_CKGR_OUTA_0 | (9); _WDWORD(0xFFFFFC28,0x2060BF09); _sleep_(10); // Configure PLLB _WDWORD(0xFFFFFC2C,0x207C3F0C); _sleep_(10); //* AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_PLLA_CLK | AT91C_PMC_PRES_CLK | AT91C_PMC_MDIV_2;; _WDWORD(0xFFFFFC30,0x00000102); _sleep_(10); } //---------------------------------------------------------------------------- // __initSDRAM() // Function description // Set SDRAM for works at 100 MHz //---------------------------------------------------------------------------- FUNC void __initSDRAM() { // Configure EBI Chip select // pCCFG->CCFG_EBICSA |= AT91C_EBI_CS1A_SDRAMC; // AT91C_CCFG_EBICSA ((AT91_REG *) 0xFFFFEF1C) // (CCFG) EBI Chip Select Assignement Register _WDWORD(0xFFFFEF1C,0x0001003A); // Configure PIOs // AT91F_PIO_CfgPeriph( AT91C_BASE_PIOC, AT91C_PC16_D16 to AT91C_PC16_D31 // pPio->PIO_ASR = periphAEnable; AT91C_PIOC_ASR ((AT91_REG *) 0xFFFFF870) // (PIOC) Select A Register // pPio->PIO_BSR = periphBEnable;AT91C_PIOC_BSR ((AT91_REG *) 0xFFFFF874) // (PIOC) Select B Register // pPio->PIO_PDR = (periphAEnable | periphBEnable); // Set in Periph mode _WDWORD(0xFFFFF870,0xFFFF0000); _WDWORD(0xFFFFF874,0x00000000); _WDWORD(0xFFFFF804,0xFFFF0000); // psdrc->SDRAMC_CR = AT91C_SDRAMC_NC_9 | AT91C_SDRAMC_NR_13 | AT91C_SDRAMC_CAS_2 | // AT91C_SDRAMC_NB_4_BANKS | AT91C_SDRAMC_DBW_32_BITS | AT91C_SDRAMC_TWR_2 | AT91C_SDRAMC_TRC_7 | // AT91C_SDRAMC_TRP_2 | AT91C_SDRAMC_TRCD_2 | AT91C_SDRAMC_TRAS_5 | AT91C_SDRAMC_TXSR_8 ; _WDWORD(0xFFFFEA08,0x85227259); _sleep_(10); // psdrc->SDRAMC_MR = 0x00000002; // Set PRCHG AL _WDWORD(0xFFFFEA00,0x00000002); // *AT91C_SDRAM = 0x00000000; // Perform PRCHG _WDWORD(0x20000000,0x00000000); _sleep_(10); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 1st CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+4) = 0x00000001; // Perform CBR _WDWORD(0x20000010,0x00000001); // psdrc->SDRAMC_MR = 0x00000004; // Set 2 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+8) = 0x00000002; // Perform CBR _WDWORD(0x20000020,0x00000002); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 3 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0xc) = 0x00000003; // Perform CBR _WDWORD(0x20000030,0x00000003); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 4 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0x10) = 0x00000004; // Perform CBR _WDWORD(0x20000040,0x00000004); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 5 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0x14) = 0x00000005; // Perform CBR _WDWORD(0x20000050,0x00000005); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 6 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0x18) = 0x00000006; // Perform CBR _WDWORD(0x20000060,0x00000006); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 7 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0x1c) = 0x00000007; // Perform CBR _WDWORD(0x20000070,0x00000007); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_RFSH_CMD; // Set 8 CBR _WDWORD(0xFFFFEA00,0x00000004); // *(AT91C_SDRAM+0x20) = 0x00000008; // Perform CBR _WDWORD(0x20000080,0x00000008); // psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_LMR_CMD; // Set LMR operation _WDWORD(0xFFFFEA00,0x00000003); // *(AT91C_SDRAM+0x24) = 0xcafedede; // Perform LMR burst=1, lat=2 _WDWORD(0x20000090,0xCAFEDEDE); // psdrc->SDRAMC_TR = (AT91C_MASTER_CLOCK * 7)/1000000; // Set Refresh Timer 390 for 25MHz (TR= 15.6 * F ) _WDWORD(0xFFFFEA04,0x000002B9); //* psdrc->SDRAMC_MR = AT91C_SDRAMC_MODE_NORMAL_CMD; // Set Normal mode _WDWORD(0xFFFFEA00,0x00000000); //* *AT91C_SDRAM = 0x00000000; // Perform Normal mode _WDWORD(0x20000000,0x00000000); printf( "------------------------------- SDRAM Done at 100 MHz -------------------------------"); } __PllSetting(); //* Init PLL __PllSetting100MHz(); __initSDRAM(); _MapRAMAt0(); //* Set the RAM memory at 0x0020 0000 & 0x0000 0000 _InitRSTC(); DEBUG_CLOCK = 2000000; LOAD Objects\\template.axf INCREMENTAL PC = 0x20000000; //g,main