FSL DDR: Convert MPC8555ADS to new DDR code.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/board/freescale/mpc8555cds/Makefile b/board/freescale/mpc8555cds/Makefile
index 98f153056d5c3821df09df368579b475cb505611..c19a527d16591170c6eb8d8dfa3bac29a9ed0227 100644 (file)
--- a/board/freescale/mpc8555cds/Makefile
+++ b/board/freescale/mpc8555cds/Makefile
@@ -27,6 +27,7 @@ include $(TOPDIR)/config.mk
 LIB    = $(obj)lib$(BOARD).a
 
 COBJS-y        += $(BOARD).o
+COBJS-y        += ddr.o
 COBJS-y        += law.o
 COBJS-y        += tlb.o
 

diff --git a/board/freescale/mpc8555cds/ddr.c b/board/freescale/mpc8555cds/ddr.c
new file mode 100644 (file)
index 0000000..11ce57d
--- /dev/null
+++ b/board/freescale/mpc8555cds/ddr.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <asm/fsl_ddr_sdram.h>
+
+static void
+get_spd(ddr1_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+       i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr1_spd_eeprom_t));
+}
+
+unsigned int fsl_ddr_get_mem_data_rate(void)
+{
+       return get_ddr_freq(0);
+}
+
+void fsl_ddr_get_spd(ddr1_spd_eeprom_t *ctrl_dimms_spd,
+                     unsigned int ctrl_num)
+{
+       unsigned int i;
+       unsigned int i2c_address = 0;
+
+       for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+               if (ctrl_num == 0 && i == 0) {
+                       i2c_address = SPD_EEPROM_ADDRESS;
+               }
+               get_spd(&(ctrl_dimms_spd[i]), i2c_address);
+       }
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
+{
+       /*
+        * Factors to consider for clock adjust:
+        *      - number of chips on bus
+        *      - position of slot
+        *      - DDR1 vs. DDR2?
+        *      - ???
+        *
+        * This needs to be determined on a board-by-board basis.
+        *      0110    3/4 cycle late
+        *      0111    7/8 cycle late
+        */
+       popts->clk_adjust = 6;
+
+       /*
+        * Factors to consider for CPO:
+        *      - frequency
+        *      - ddr1 vs. ddr2
+        */
+       popts->cpo_override = 0;
+
+       /*
+        * Factors to consider for write data delay:
+        *      - number of DIMMs
+        *
+        * 1 = 1/4 clock delay
+        * 2 = 1/2 clock delay
+        * 3 = 3/4 clock delay
+        * 4 = 1   clock delay
+        * 5 = 5/4 clock delay
+        * 6 = 3/2 clock delay
+        */
+       popts->write_data_delay = 3;
+
+       /*
+        * Factors to consider for half-strength driver enable:
+        *      - number of DIMMs installed
+        */
+       popts->half_strength_driver_enable = 0;
+}

diff --git a/board/freescale/mpc8555cds/mpc8555cds.c b/board/freescale/mpc8555cds/mpc8555cds.c
index 9a65101dd275be552eef6acb0d3118c60da18928..826056a845e310c4e7a0e7d27811ff26714489f8 100644 (file)
--- a/board/freescale/mpc8555cds/mpc8555cds.c
+++ b/board/freescale/mpc8555cds/mpc8555cds.c
@@ -23,7 +23,9 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
+#include <asm/mmu.h>
 #include <asm/immap_85xx.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <ioports.h>
 #include <spd_sdram.h>
 #include <libfdt.h>
@@ -261,7 +263,10 @@ initdram(int board_type)
                udelay(200);
        }
 #endif
-       dram_size = spd_sdram();
+
+       dram_size = fsl_ddr_sdram();
+       dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+       dram_size *= 0x100000;
 
 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
        /*
@@ -269,6 +274,7 @@ initdram(int board_type)
         */
        ddr_enable_ecc(dram_size);
 #endif
+
        /*
         * SDRAM Initialization
         */

diff --git a/include/configs/MPC8555CDS.h b/include/configs/MPC8555CDS.h
index 85c235c4eb06429fd4b99b1b80eb75fc4148ccab..c07a725f9b0a42c192010bc788f058e70239cab7 100644 (file)
--- a/include/configs/MPC8555CDS.h
+++ b/include/configs/MPC8555CDS.h
@@ -40,13 +40,6 @@
 #define CONFIG_PCI
 #define CONFIG_TSEC_ENET               /* tsec ethernet support */
 #define CONFIG_ENV_OVERWRITE
-#define CONFIG_SPD_EEPROM              /* Use SPD EEPROM for DDR setup*/
-#define CONFIG_DDR_DLL                 /* possible DLL fix needed */
-#undef CONFIG_DDR_2T_TIMING            /* Sets the 2T timing bit */
-
-#define CONFIG_DDR_ECC                 /* only for ECC DDR module */
-#define CONFIG_MEM_INIT_VALUE          0xDeadBeef
-
 #define CONFIG_FSL_LAW         1       /* Use common FSL init code */
 
 #define CONFIG_FSL_VIA
@@ -59,8 +52,6 @@
  */
 #define CONFIG_ASSUME_AMD_FLASH
 
-#define MPC85xx_DDR_SDRAM_CLK_CNTL     /* 85xx has clock control reg */
-
 #ifndef __ASSEMBLY__
 extern unsigned long get_clock_freq(void);
 #endif
@@ -85,24 +76,31 @@ extern unsigned long get_clock_freq(void);
 #define CFG_CCSRBAR_PHYS       CFG_CCSRBAR     /* physical addr of CCSRBAR */
 #define CFG_IMMR               CFG_CCSRBAR     /* PQII uses CFG_IMMR */
 
-/*
- * DDR Setup
- */
+/* DDR Setup */
+#define CONFIG_FSL_DDR1
+#define CONFIG_SPD_EEPROM              /* Use SPD EEPROM for DDR setup*/
+#define CONFIG_DDR_SPD
+#undef CONFIG_FSL_DDR_INTERACTIVE
+
+#define CONFIG_MEM_INIT_VALUE          0xDeadBeef
+
 #define CFG_DDR_SDRAM_BASE     0x00000000      /* DDR is system memory*/
 #define CFG_SDRAM_BASE         CFG_DDR_SDRAM_BASE
 
-#define SPD_EEPROM_ADDRESS     0x51            /* DDR DIMM */
+#define CONFIG_NUM_DDR_CONTROLLERS     1
+#define CONFIG_DIMM_SLOTS_PER_CTLR     1
+#define CONFIG_CHIP_SELECTS_PER_CTRL   (2 * CONFIG_DIMM_SLOTS_PER_CTLR)
 
-/*
- * Make sure required options are set
- */
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS     0x51    /* CTLR 0 DIMM 0 */
+
+/* Make sure required options are set */
 #ifndef CONFIG_SPD_EEPROM
 #error ("CONFIG_SPD_EEPROM is required by MPC85555CDS")
 #endif
 
 #undef CONFIG_CLOCKS_IN_MHZ
 
-
 /*
  * Local Bus Definitions
  */
@@ -317,6 +315,9 @@ extern unsigned long get_clock_freq(void);
 #define CONFIG_OF_BOARD_SETUP          1
 #define CONFIG_OF_STDOUT_VIA_ALIAS     1
 
+#define CFG_64BIT_VSPRINTF     1
+#define CFG_64BIT_STRTOUL      1
+
 /*
  * I2C
  */