[U-Boot] [PATCH 12/24] FSL DDR: Convert atum8548 to new DDR code.

[Kumar Gala <galak@kernel.crashing.org>]

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 board/atum8548/Makefile    |    9 +++--
 board/atum8548/atum8548.c  |    8 +++-
 board/atum8548/ddr.c       |   80 ++++++++++++++++++++++++++++++++++++++++++++
 include/configs/ATUM8548.h |   64 +++++++++++++++++------------------
 4 files changed, 123 insertions(+), 38 deletions(-)
 create mode 100644 board/atum8548/ddr.c

diff --git a/board/atum8548/Makefile b/board/atum8548/Makefile
index d2e689f..b991308 100644
--- a/board/atum8548/Makefile
+++ b/board/atum8548/Makefile
@@ -29,10 +29,13 @@ endif
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o law.o tlb.o
+COBJS-y	+= $(BOARD).o
+COBJS-y	+= law.o
+COBJS-y	+= tlb.o
+COBJS-$(CONFIG_FSL_DDR2) += ddr.o
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(obj).depend $(OBJS) $(SOBJS)
diff --git a/board/atum8548/atum8548.c b/board/atum8548/atum8548.c
index 34f4599..337cf31 100644
--- a/board/atum8548/atum8548.c
+++ b/board/atum8548/atum8548.c
@@ -29,7 +29,9 @@
 #include <asm/processor.h>
 #include <asm/immap_85xx.h>
 #include <asm/immap_fsl_pci.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <asm/io.h>
+#include <asm/mmu.h>
 #include <spd_sdram.h>
 #include <miiphy.h>
 #include <libfdt.h>
@@ -106,8 +108,10 @@ initdram(int board_type)
 	puts("Initializing\n");
 
 #if defined(CONFIG_SPD_EEPROM)
-	puts("spd_sdram\n");
-	dram_size = spd_sdram ();
+	puts("fsl_ddr_sdram\n");
+	dram_size = fsl_ddr_sdram();
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
 #else
 	puts("fixed_sdram\n");
 	dram_size = fixed_sdram ();
diff --git a/board/atum8548/ddr.c b/board/atum8548/ddr.c
new file mode 100644
index 0000000..f07d746
--- /dev/null
+++ b/board/atum8548/ddr.c
@@ -0,0 +1,80 @@
+/*
+ * 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(ddr2_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+	i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr2_spd_eeprom_t));
+}
+
+unsigned int fsl_ddr_get_mem_data_rate(void)
+{
+	return get_ddr_freq(0);
+}
+
+void fsl_ddr_get_spd(ddr2_spd_eeprom_t *ctrl_dimms_spd,
+			unsigned int ctrl_num)
+{
+	unsigned int i;
+
+	if (ctrl_num) {
+		printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
+		return;
+	}
+
+	for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+		get_spd(&(ctrl_dimms_spd[i]), SPD_EEPROM_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 = 7;
+
+	/*
+	 * Factors to consider for CPO:
+	 *	- frequency
+	 *	- ddr1 vs. ddr2
+	 */
+	popts->cpo_override = 10;
+
+	/*
+	 * 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/include/configs/ATUM8548.h b/include/configs/ATUM8548.h
index 6aa881c..5bc28f1 100644
--- a/include/configs/ATUM8548.h
+++ b/include/configs/ATUM8548.h
@@ -55,18 +55,11 @@
 
 #define CONFIG_TSEC_ENET	1	/* tsec ethernet support */
 #define CONFIG_ENV_OVERWRITE
-#define CONFIG_SPD_EEPROM	1	/* Use SPD EEPROM for DDR setup*/
-#undef CONFIG_DDR_2T_TIMING		/* Sets the 2T timing bit */
 
-#define CONFIG_DDR_ECC			/* only for ECC DDR module */
-#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER	/* DDR controller or DMA? */
-#define CONFIG_MEM_INIT_VALUE		0xDeadBeef
 #define CONFIG_INTERRUPTS		/* enable pci, srio, ddr interrupts */
 
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 
-#define MPC85xx_DDR_SDRAM_CLK_CNTL	/* 85xx has clock control reg */
-
 #define CONFIG_SYS_CLK_FREQ	33000000
 
 /*
@@ -104,33 +97,38 @@
 #define CFG_PCI2_ADDR	(CFG_CCSRBAR+0x9000)
 #define CFG_PCIE1_ADDR	(CFG_CCSRBAR+0xa000)
 
-/*
- * DDR Setup
- */
-#define CFG_DDR_SDRAM_BASE	0x00000000	/* DDR is system memory*/
-#define CFG_SDRAM_BASE		CFG_DDR_SDRAM_BASE
+/* DDR Setup */
+#define CONFIG_FSL_DDR2
+#undef CONFIG_FSL_DDR_INTERACTIVE
+#define CONFIG_DDR_ECC			/* only for ECC DDR module */
+#define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup */
+#define CONFIG_DDR_SPD
 
-#if defined(CONFIG_SPD_EEPROM)
-    /*
-     * Determine DDR configuration from I2C interface.
-     */
-    #define SPD_EEPROM_ADDRESS	0x51		/* DDR DIMM */
+#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER	/* DDR controller or DMA? */
+#define CONFIG_MEM_INIT_VALUE	0xDeadBeef
 
-#else
-    /*
-     * Manually set up DDR parameters
-     */
-    #define CFG_SDRAM_SIZE	1024		/* DDR is 1024MB */
-    #define CFG_DDR_CS0_BNDS	0x0000000f	/* 0-1024 */
-    #define CFG_DDR_CS0_CONFIG	0x80000102
-    #define CFG_DDR_TIMING_0	0x00260802
-    #define CFG_DDR_TIMING_1	0x38355322
-    #define CFG_DDR_TIMING_2	0x039048c7
-    #define CFG_DDR_CONTROL	0xc2000000	/* unbuffered,no DYN_PWR */
-    #define CFG_DDR_MODE	0x00000432
-    #define CFG_DDR_INTERVAL	0x05150100
-    #define DDR_SDRAM_CFG	0x43000000
-#endif
+#define CFG_DDR_SDRAM_BASE	0x00000000
+#define CFG_SDRAM_BASE		CFG_DDR_SDRAM_BASE
+#define CONFIG_VERY_BIG_RAM
+
+#define CONFIG_NUM_DDR_CONTROLLERS	1
+#define CONFIG_DIMM_SLOTS_PER_CTLR	1
+#define CONFIG_CHIP_SELECTS_PER_CTRL	2
+
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS	0x51	/* CTLR 0 DIMM 0 */
+
+/* Manually set up DDR parameters */
+#define CFG_SDRAM_SIZE	1024		/* DDR is 1024MB */
+#define CFG_DDR_CS0_BNDS	0x0000000f	/* 0-1024 */
+#define CFG_DDR_CS0_CONFIG	0x80000102
+#define CFG_DDR_TIMING_0	0x00260802
+#define CFG_DDR_TIMING_1	0x38355322
+#define CFG_DDR_TIMING_2	0x039048c7
+#define CFG_DDR_CONTROL	0xc2000000	/* unbuffered,no DYN_PWR */
+#define CFG_DDR_MODE	0x00000432
+#define CFG_DDR_INTERVAL	0x05150100
+#define DDR_SDRAM_CFG	0x43000000
 
 #undef CONFIG_CLOCKS_IN_MHZ
 
-- 
1.5.5.1