- printf(" SDRAM_OPART = N/A ");
- sdram_reg = SDRAM_RTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RTR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MB0CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB0CF = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MB1CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB1CF = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MB2CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB2CF = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MB3CF;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MB3CF = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR0;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR0 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR1 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR2 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR3;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR3 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR4;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR4 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR5;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR5 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR6;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR6 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR7;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR7 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR8;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR8 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR9;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR9 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR10;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR10 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR11;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR11 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR12;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR12 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR13;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR13 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_INITPLR14;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR14 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_INITPLR15;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_INITPLR15 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_RQDC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RQDC = 0x%08X", sdram_data);
- sdram_reg = SDRAM_RFDC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RFDC = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_RDCC;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_RDCC = 0x%08X", sdram_data);
- sdram_reg = SDRAM_DLCR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_DLCR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_CLKTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_CLKTR = 0x%08X", sdram_data);
- sdram_reg = SDRAM_WRDTR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_WRDTR = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_SDTR1;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR1 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_SDTR2;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR2 = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_SDTR3;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_SDTR3 = 0x%08X", sdram_data);
- sdram_reg = SDRAM_MMODE;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MMODE = 0x%08X\n", sdram_data);
- sdram_reg = SDRAM_MEMODE;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_MEMODE = 0x%08X", sdram_data);
- sdram_reg = SDRAM_ECCCR;
- mfsdram(sdram_reg, sdram_data);
- printf(" SDRAM_ECCCR = 0x%08X\n\n", sdram_data);
-
- dcr_data = mfdcr(SDRAM_R0BAS);
- printf(" MQ0_B0BAS = 0x%08X", dcr_data);
- dcr_data = mfdcr(SDRAM_R1BAS);
- printf(" MQ1_B0BAS = 0x%08X\n", dcr_data);
- dcr_data = mfdcr(SDRAM_R2BAS);
- printf(" MQ2_B0BAS = 0x%08X", dcr_data);
- dcr_data = mfdcr(SDRAM_R3BAS);
- printf(" MQ3_B0BAS = 0x%08X\n", dcr_data);
+#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
+ unsigned long val;
+
+#if defined(CONFIG_440)
+ mtdcr(SDRAM_R0BAS, CONFIG_SYS_SDRAM_R0BAS);
+ mtdcr(SDRAM_R1BAS, CONFIG_SYS_SDRAM_R1BAS);
+ mtdcr(SDRAM_R2BAS, CONFIG_SYS_SDRAM_R2BAS);
+ mtdcr(SDRAM_R3BAS, CONFIG_SYS_SDRAM_R3BAS);
+ mtdcr(SDRAM_PLBADDULL, CONFIG_SYS_SDRAM_PLBADDULL); /* MQ0_BAUL */
+ mtdcr(SDRAM_PLBADDUHB, CONFIG_SYS_SDRAM_PLBADDUHB); /* MQ0_BAUH */
+ mtdcr(SDRAM_CONF1LL, CONFIG_SYS_SDRAM_CONF1LL);
+ mtdcr(SDRAM_CONF1HB, CONFIG_SYS_SDRAM_CONF1HB);
+ mtdcr(SDRAM_CONFPATHB, CONFIG_SYS_SDRAM_CONFPATHB);
+#endif
+
+ /* Set Memory Bank Configuration Registers */
+
+ mtsdram(SDRAM_MB0CF, CONFIG_SYS_SDRAM0_MB0CF);
+ mtsdram(SDRAM_MB1CF, CONFIG_SYS_SDRAM0_MB1CF);
+ mtsdram(SDRAM_MB2CF, CONFIG_SYS_SDRAM0_MB2CF);
+ mtsdram(SDRAM_MB3CF, CONFIG_SYS_SDRAM0_MB3CF);
+
+ /* Set Memory Clock Timing Register */
+
+ mtsdram(SDRAM_CLKTR, CONFIG_SYS_SDRAM0_CLKTR);
+
+ /* Set Refresh Time Register */
+
+ mtsdram(SDRAM_RTR, CONFIG_SYS_SDRAM0_RTR);
+
+ /* Set SDRAM Timing Registers */
+
+ mtsdram(SDRAM_SDTR1, CONFIG_SYS_SDRAM0_SDTR1);
+ mtsdram(SDRAM_SDTR2, CONFIG_SYS_SDRAM0_SDTR2);
+ mtsdram(SDRAM_SDTR3, CONFIG_SYS_SDRAM0_SDTR3);
+
+ /* Set Mode and Extended Mode Registers */
+
+ mtsdram(SDRAM_MMODE, CONFIG_SYS_SDRAM0_MMODE);
+ mtsdram(SDRAM_MEMODE, CONFIG_SYS_SDRAM0_MEMODE);
+
+ /* Set Memory Controller Options 1 Register */
+
+ mtsdram(SDRAM_MCOPT1, CONFIG_SYS_SDRAM0_MCOPT1);
+
+ /* Set Manual Initialization Control Registers */
+
+ mtsdram(SDRAM_INITPLR0, CONFIG_SYS_SDRAM0_INITPLR0);
+ mtsdram(SDRAM_INITPLR1, CONFIG_SYS_SDRAM0_INITPLR1);
+ mtsdram(SDRAM_INITPLR2, CONFIG_SYS_SDRAM0_INITPLR2);
+ mtsdram(SDRAM_INITPLR3, CONFIG_SYS_SDRAM0_INITPLR3);
+ mtsdram(SDRAM_INITPLR4, CONFIG_SYS_SDRAM0_INITPLR4);
+ mtsdram(SDRAM_INITPLR5, CONFIG_SYS_SDRAM0_INITPLR5);
+ mtsdram(SDRAM_INITPLR6, CONFIG_SYS_SDRAM0_INITPLR6);
+ mtsdram(SDRAM_INITPLR7, CONFIG_SYS_SDRAM0_INITPLR7);
+ mtsdram(SDRAM_INITPLR8, CONFIG_SYS_SDRAM0_INITPLR8);
+ mtsdram(SDRAM_INITPLR9, CONFIG_SYS_SDRAM0_INITPLR9);
+ mtsdram(SDRAM_INITPLR10, CONFIG_SYS_SDRAM0_INITPLR10);
+ mtsdram(SDRAM_INITPLR11, CONFIG_SYS_SDRAM0_INITPLR11);
+ mtsdram(SDRAM_INITPLR12, CONFIG_SYS_SDRAM0_INITPLR12);
+ mtsdram(SDRAM_INITPLR13, CONFIG_SYS_SDRAM0_INITPLR13);
+ mtsdram(SDRAM_INITPLR14, CONFIG_SYS_SDRAM0_INITPLR14);
+ mtsdram(SDRAM_INITPLR15, CONFIG_SYS_SDRAM0_INITPLR15);
+
+ /* Set On-Die Termination Registers */
+
+ mtsdram(SDRAM_CODT, CONFIG_SYS_SDRAM0_CODT);
+ mtsdram(SDRAM_MODT0, CONFIG_SYS_SDRAM0_MODT0);
+ mtsdram(SDRAM_MODT1, CONFIG_SYS_SDRAM0_MODT1);
+
+ /* Set Write Timing Register */
+
+ mtsdram(SDRAM_WRDTR, CONFIG_SYS_SDRAM0_WRDTR);
+
+ /*
+ * Start Initialization by SDRAM0_MCOPT2[SREN] = 0 and
+ * SDRAM0_MCOPT2[IPTR] = 1
+ */
+
+ mtsdram(SDRAM_MCOPT2, (SDRAM_MCOPT2_SREN_EXIT |
+ SDRAM_MCOPT2_IPTR_EXECUTE));
+
+ /*
+ * Poll SDRAM0_MCSTAT[MIC] for assertion to indicate the
+ * completion of initialization.
+ */
+
+ do {
+ mfsdram(SDRAM_MCSTAT, val);
+ } while ((val & SDRAM_MCSTAT_MIC_MASK) != SDRAM_MCSTAT_MIC_COMP);
+
+ /* Set Delay Control Registers */
+
+ mtsdram(SDRAM_DLCR, CONFIG_SYS_SDRAM0_DLCR);
+
+#if !defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION)
+ mtsdram(SDRAM_RDCC, CONFIG_SYS_SDRAM0_RDCC);
+ mtsdram(SDRAM_RQDC, CONFIG_SYS_SDRAM0_RQDC);
+ mtsdram(SDRAM_RFDC, CONFIG_SYS_SDRAM0_RFDC);
+#endif /* !CONFIG_PPC4xx_DDR_AUTOCALIBRATION */
+
+ /*
+ * Enable Controller by SDRAM0_MCOPT2[DCEN] = 1:
+ */
+
+ mfsdram(SDRAM_MCOPT2, val);
+ mtsdram(SDRAM_MCOPT2, val | SDRAM_MCOPT2_DCEN_ENABLE);
+
+#if defined(CONFIG_440)
+ /*
+ * Program TLB entries with caches enabled, for best performace
+ * while auto-calibrating and ECC generation
+ */
+ program_tlb(0, 0, (CONFIG_SYS_MBYTES_SDRAM << 20), 0);
+#endif
+
+#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION)
+#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
+ /*------------------------------------------------------------------
+ | DQS calibration.
+ +-----------------------------------------------------------------*/
+ DQS_autocalibration();
+#endif /* !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) */
+#endif /* CONFIG_PPC4xx_DDR_AUTOCALIBRATION */
+
+#if defined(CONFIG_DDR_ECC)
+ ecc_init(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20);
+#endif /* defined(CONFIG_DDR_ECC) */
+
+#if defined(CONFIG_440)
+ /*
+ * Now after initialization (auto-calibration and ECC generation)
+ * remove the TLB entries with caches enabled and program again with
+ * desired cache functionality
+ */
+ remove_tlb(0, (CONFIG_SYS_MBYTES_SDRAM << 20));
+ program_tlb(0, 0, (CONFIG_SYS_MBYTES_SDRAM << 20), MY_TLB_WORD2_I_ENABLE);
+#endif
+
+ ppc4xx_ibm_ddr2_register_dump();
+
+#if defined(CONFIG_PPC4xx_DDR_AUTOCALIBRATION)
+ /*
+ * Clear potential errors resulting from auto-calibration.
+ * If not done, then we could get an interrupt later on when
+ * exceptions are enabled.
+ */
+ set_mcsr(get_mcsr());
+#endif /* CONFIG_PPC4xx_DDR_AUTOCALIBRATION */
+
+#endif /* !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) */
+
+ return (CONFIG_SYS_MBYTES_SDRAM << 20);