OMAP242x H4 board update

- fix for ES2 differences.
- switch to using the cfi_flash driver.
- fix SRAM build address.
- fix for GP device operation.
- unlock SRAM for GP devices.
- display more device information.
- fix potential deadlock in omap24xx_i2c driver.
- fix DLL load values to match dpllout*1 operation.
- fix 2nd chip select init for combo DDR device.
- add support for CFI Intel 28F256L18 on H4 board.
Patch by Richard Woodruff, 03 Mar 2005

15 files changed, 365 insertions, 254 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 21944f836..a82a9a6fc 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,19 @@
 Changes for U-Boot 1.1.4:
 ======================================================================
 
+* OMAP242x H4 board update
+  - fix for ES2 differences.
+  - switch to using the cfi_flash driver.
+  - fix SRAM build address.
+  - fix for GP device operation.
+  - unlock SRAM for GP devices.
+  - display more device information.
+  - fix potential deadlock in omap24xx_i2c driver.
+  - fix DLL load values to match dpllout*1 operation.
+  - fix 2nd chip select init for combo DDR device.
+  - add support for CFI Intel 28F256L18 on H4 board.
+  Patch by Richard Woodruff, 03 Mar 2005
+
 * Fix formating in include/asm-arm/arch-at91rm9200/AT91RM9200.h
   Patch by Steven Scholz, 02 Mar 2005
 
diff --git a/board/omap2420h4/Makefile b/board/omap2420h4/Makefile
index deab6b6d1..38dec00d3 100644
--- a/board/omap2420h4/Makefile
+++ b/board/omap2420h4/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= lib$(BOARD).a
 
-OBJS	:= omap2420h4.o flash.o mem.o sys_info.o
+OBJS	:= omap2420h4.o mem.o sys_info.o
 SOBJS	:= platform.o
 
 $(LIB):	$(OBJS) $(SOBJS)
diff --git a/board/omap2420h4/config.mk b/board/omap2420h4/config.mk
index e6aa75678..3edcde018 100644
--- a/board/omap2420h4/config.mk
+++ b/board/omap2420h4/config.mk
@@ -19,4 +19,10 @@ TEXT_BASE = 0x80e80000
 # Used with full SRAM boot.
 # This is either with a GP system or a signed boot image.
 # easiest, and safest way to go if you can.
-#TEXT_BASE = 0x40280000
+#TEXT_BASE = 0x40270000
+
+
+# Handy to get symbols to debug ROM version.
+#TEXT_BASE = 0x0
+#TEXT_BASE = 0x08000000
+#TEXT_BASE = 0x04000000
diff --git a/board/omap2420h4/mem.c b/board/omap2420h4/mem.c
index 9ae595b3c..62eb6e38a 100644
--- a/board/omap2420h4/mem.c
+++ b/board/omap2420h4/mem.c
@@ -48,7 +48,7 @@ void sdelay (unsigned long loops)
  *********************************************************************************/
 void prcm_init(void)
 {
-	u32 rev,div;
+	u32 div;
 	void (*f_lock_pll) (u32, u32, u32, u32);
 	extern void *_end_vect, *_start;
 
@@ -64,11 +64,7 @@ void prcm_init(void)
 	__raw_writel(DSP_DIV, CM_CLKSEL_DSP);	/* set dsp and iva dividers */
 	__raw_writel(GFX_DIV, CM_CLKSEL_GFX);	/* set gfx dividers */
 
-	rev  = get_cpu_rev();
-	if (rev == CPU_2420_ES1 || rev ==  CPU_2422_ES1)
-		div = BUS_DIV_ES1;
-	else
-		div	= BUS_DIV;
+	div = BUS_DIV;
 	__raw_writel(div, CM_CLKSEL1_CORE);/* set L3/L4/USB/Display/Vlnc/SSi dividers */
 	sdelay(1000);
 
@@ -99,6 +95,23 @@ void prcm_init(void)
 	sdelay(1000);
 }
 
+/**************************************************************************
+ * make_cs1_contiguous() - for es2 and above remap cs1 behind cs0 to allow
+ *  command line mem=xyz use all memory with out discontigious support
+ *  compiled in.  Could do it at the ATAG, but there really is two banks...
+ * Called as part of 2nd phase DDR init.
+ **************************************************************************/
+void make_cs1_contiguous(void)
+{
+	u32 size, a_add_low, a_add_high;
+
+	size = get_sdr_cs_size(SDRC_CS0_OSET);
+	size /= SZ_32M;  /* find size to offset CS1 */
+	a_add_high = (size & 3) << 8;   /* set up low field */
+	a_add_low = (size & 0x3C) >> 2; /* set up high field */
+	__raw_writel((a_add_high|a_add_low),SDRC_CS_CFG);
+
+}
 
 /********************************************************
  *  mem_ok() - test used to see if timings are correct
@@ -122,6 +135,7 @@ u32 mem_ok(void)
 		return(1);
 }
 
+
 /********************************************************
  *  sdrc_init() - init the sdrc chip selects CS0 and CS1
  *  - early init routines, called from flash or
@@ -148,28 +162,29 @@ void sdrc_init(void)
  **************************************************************************/
 void do_sdrc_init(u32 offset, u32 early)
 {
-	u32 cpu, bug=0, rev, common=0, cs0=0, pmask=0, pass_type;
+	u32 cpu, dllen=0, rev, common=0, cs0=0, pmask=0, pass_type, mtype;
 	sdrc_data_t *sdata;	 /* do not change type */
 	u32 a, b, r;
 
 	static const sdrc_data_t sdrc_2422 =
 	{
 		H4_2422_SDRC_SHARING, H4_2422_SDRC_MDCFG_0_DDR, 0 , H4_2422_SDRC_ACTIM_CTRLA_0,
-		H4_2422_SDRC_ACTIM_CTRLB_0, H4_2422_SDRC_RFR_CTRL_ES1, H4_2422_SDRC_MR_0_DDR,
-		0, H4_2422_SDRC_DLLA_CTRL, H4_2422_SDRC_DLLB_CTRL
+		H4_2422_SDRC_ACTIM_CTRLB_0, H4_2422_SDRC_RFR_CTRL, H4_2422_SDRC_MR_0_DDR,
+		0, H4_2422_SDRC_DLLAB_CTRL
 	};
 	static const sdrc_data_t sdrc_2420 =
 	{
 		H4_2420_SDRC_SHARING, H4_2420_SDRC_MDCFG_0_DDR, H4_2420_SDRC_MDCFG_0_SDR,
 		H4_2420_SDRC_ACTIM_CTRLA_0, H4_2420_SDRC_ACTIM_CTRLB_0,
-		H4_2420_SDRC_RFR_CTRL_ES1, H4_2420_SDRC_MR_0_DDR, H4_2420_SDRC_MR_0_SDR,
-		H4_2420_SDRC_DLLA_CTRL, H4_2420_SDRC_DLLB_CTRL
+		H4_2420_SDRC_RFR_CTRL, H4_2420_SDRC_MR_0_DDR, H4_2420_SDRC_MR_0_SDR,
+		H4_2420_SDRC_DLLAB_CTRL
 	};
 
 	if (offset == SDRC_CS0_OSET)
 		cs0 = common = 1;  /* int regs shared between both chip select */
 
 	cpu = get_cpu_type();
+	rev = get_cpu_rev();
 
 	/* warning generated, though code generation is correct. this may bite later,
 	 * but is ok for now. there is only so much C code you can do on stack only
@@ -197,9 +212,15 @@ void do_sdrc_init(u32 offset, u32 early)
 		if(running_from_internal_boot())
 			sdata = (sdrc_data_t *)((u32)sdata + 0x4000);
 	}
-	if (!early && (get_mem_type() == DDR_COMBO)) {/* combo part has a shared CKE signal, can't use feature */
-		pmask = BIT2;
-		pass_type = COMBO_DDR; /* CS1 config */
+
+	if (!early && (((mtype = get_mem_type()) == DDR_COMBO)||(mtype == DDR_STACKED))) {
+		if(mtype == DDR_COMBO){
+			pmask = BIT2;/* combo part has a shared CKE signal, can't use feature */
+			pass_type = COMBO_DDR; /* CS1 config */
+			__raw_writel((__raw_readl(SDRC_POWER)) & ~pmask, SDRC_POWER);
+		}
+		if(rev != CPU_2420_2422_ES1)	/* for es2 and above smooth things out */
+			make_cs1_contiguous();
 	}
 
 next_mem_type:
@@ -208,11 +229,10 @@ next_mem_type:
 		wait_on_value(BIT0, BIT0, SDRC_STATUS, 12000000);/* wait till reset done set */
 		__raw_writel(0, SDRC_SYSCONFIG);		/* clear soft reset */
 		__raw_writel(sdata->sdrc_sharing, SDRC_SHARING);
-		__raw_writel((__raw_readl(SDRC_POWER)) & ~pmask, SDRC_POWER);
 #ifdef POWER_SAVE
 		__raw_writel(__raw_readl(SMS_SYSCONFIG)|SMART_IDLE, SMS_SYSCONFIG);
 		__raw_writel(sdata->sdrc_sharing|SMART_IDLE, SDRC_SHARING);
-		__raw_writel((__raw_readl(SDRC_POWER)|BIT6) & ~pmask, SDRC_POWER);
+		__raw_writel((__raw_readl(SDRC_POWER)|BIT6), SDRC_POWER);
 #endif
 	}
 
@@ -224,15 +244,16 @@ next_mem_type:
 		__raw_writel(sdata->sdrc_mdcfg_0_sdr, SDRC_MCFG_0+offset);
 	}
 
-	if(pass_type == IP_SDR){  /* SDRAM can run full speed only rated for 105MHz*/
-		a = H4_242X_SDRC_ACTIM_CTRLA_0_100MHz;
-		b = H4_242X_SDRC_ACTIM_CTRLB_0_100MHz;
-		r = H4_2420_SDRC_RFR_CTRL;
-	} else {
-		a = sdata->sdrc_actim_ctrla_0;
-		b = sdata->sdrc_actim_ctrlb_0;
-		r = sdata->sdrc_rfr_ctrl;
-	}
+	a = sdata->sdrc_actim_ctrla_0;
+	b = sdata->sdrc_actim_ctrlb_0;
+	r = sdata->sdrc_dllab_ctrl;
+
+	/* work around ES1 DDR issues */
+	if((pass_type != IP_SDR) && (rev == CPU_2420_2422_ES1)){
+		a = H4_242x_SDRC_ACTIM_CTRLA_0_ES1;
+		b = H4_242x_SDRC_ACTIM_CTRLB_0_ES1;
+		r = H4_242x_SDRC_RFR_CTRL_ES1;
+ 	}
 
 	if (cs0) {
 		__raw_writel(a, SDRC_ACTIM_CTRLA_0);
@@ -241,7 +262,6 @@ next_mem_type:
 		__raw_writel(a, SDRC_ACTIM_CTRLA_1);
 		__raw_writel(b, SDRC_ACTIM_CTRLB_1);
 	}
-
 	__raw_writel(r, SDRC_RFR_CTRL+offset);
 
 	/* init sequence for mDDR/mSDR using manual commands (DDR is a bit different) */
@@ -263,18 +283,22 @@ next_mem_type:
 		__raw_writel(sdata->sdrc_mr_0_ddr, SDRC_MR_0+offset);
 
 	/* NOTE: ES1 242x _BUG_ DLL + External Bandwidth fix*/
-	rev  = get_cpu_rev();
-	if (rev == CPU_2420_ES1 || rev ==  CPU_2422_ES1){
-		bug = BIT0;
+	if (rev == CPU_2420_2422_ES1){
+		dllen = (BIT0|BIT3); /* es1 clear both bit0 and bit3 */
 		__raw_writel((__raw_readl(SMS_CLASS_ARB0)|BURSTCOMPLETE_GROUP7)
 			,SMS_CLASS_ARB0);/* enable bust complete for lcd */
 	}
-	/* enable & load up DLL with good value for 75MHz, and set phase to 90% */
+	else
+		dllen = BIT0|BIT1; /* es2, clear bit0, and 1 (set phase to 72) */
+
+	/* enable & load up DLL with good value for 75MHz, and set phase to 90
+	 * ES1 recommends 90 phase, ES2 recommends 72 phase.
+	 */
 	if (common && (pass_type != IP_SDR)) {
-		__raw_writel(sdata->sdrc_dlla_ctrl, SDRC_DLLA_CTRL);
-		__raw_writel(sdata->sdrc_dlla_ctrl & ~(BIT2|bug), SDRC_DLLA_CTRL);
-		__raw_writel(sdata->sdrc_dllb_ctrl, SDRC_DLLB_CTRL);
-		__raw_writel(sdata->sdrc_dllb_ctrl & ~(BIT2|bug) , SDRC_DLLB_CTRL);
+		__raw_writel(sdata->sdrc_dllab_ctrl, SDRC_DLLA_CTRL);
+		__raw_writel(sdata->sdrc_dllab_ctrl & ~(BIT2|dllen), SDRC_DLLA_CTRL);
+		__raw_writel(sdata->sdrc_dllab_ctrl, SDRC_DLLB_CTRL);
+		__raw_writel(sdata->sdrc_dllab_ctrl & ~(BIT2|dllen) , SDRC_DLLB_CTRL);
 	}
 	sdelay(90000);
 
@@ -291,12 +315,18 @@ next_mem_type:
  *****************************************************/
 void gpmc_init(void)
 {
-	u32 mux=0, mtype, mwidth;
+	u32 mux=0, mtype, mwidth, rev, tval;
+
+	rev  = get_cpu_rev();
+	if (rev == CPU_2420_2422_ES1)
+		tval = 1;
+	else
+		tval = 0;  /* disable bit switched meaning */
 
 	/* global settings */
 	__raw_writel(0x10, GPMC_SYSCONFIG);	/* smart idle */
 	__raw_writel(0x0, GPMC_IRQENABLE);	/* isr's sources masked */
-	__raw_writel(0x1, GPMC_TIMEOUT_CONTROL);/* timeout disable */
+	__raw_writel(tval, GPMC_TIMEOUT_CONTROL);/* timeout disable */
 #ifdef CFG_NAND_BOOT
 	__raw_writel(0x001, GPMC_CONFIG);	/* set nWP, disable limited addr */
 #else
diff --git a/board/omap2420h4/omap2420h4.c b/board/omap2420h4/omap2420h4.c
index 219bcf43b..c729eca01 100644
--- a/board/omap2420h4/omap2420h4.c
+++ b/board/omap2420h4/omap2420h4.c
@@ -36,7 +36,7 @@
 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
 #endif
 
-static void wait_for_command_complete(unsigned int wd_base);
+ void wait_for_command_complete(unsigned int wd_base);
 
 /*******************************************************
  * Routine: delay
@@ -83,6 +83,21 @@ void try_unlock_sram(void)
 }
 
 /**********************************************************
+ * Routine: try_unlock_sram()
+ * Description: If chip is GP type, unlock the SRAM for
+ *  general use.
+ ***********************************************************/
+void try_unlock_sram(void)
+{
+	/* if GP device unlock device SRAM for general use */
+	if (get_device_type() == GP_DEVICE) {
+		__raw_writel(0xFF, A_REQINFOPERM0);
+		__raw_writel(0xCFDE, A_READPERM0);
+		__raw_writel(0xCFDE, A_WRITEPERM0);
+	}
+}
+
+/**********************************************************
  * Routine: s_init
  * Description: Does early system init of muxing and clocks.
  * - Called path is with sram stack.
@@ -144,7 +159,7 @@ void watchdog_init(void)
  * Routine: wait_for_command_complete
  * Description: Wait for posting to finish on watchdog
  ******************************************************/
-static void wait_for_command_complete(unsigned int wd_base)
+void wait_for_command_complete(unsigned int wd_base)
 {
 	int pending = 1;
 	do {
@@ -200,7 +215,7 @@ int dram_init (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	unsigned int size0=0,size1=0;
-	u32 mtype, btype;
+	u32 mtype, btype, rev, cpu;
 	u8 chg_on = 0x5; /* enable charge of back up battery */
 	u8 vmode_on = 0x8C;
 	#define NOT_EARLY 0
@@ -209,6 +224,8 @@ int dram_init (void)
 
 	btype = get_board_type();
 	mtype = get_mem_type();
+	rev = get_cpu_rev();
+	cpu = get_cpu_type();
 
 	display_board_info(btype);
 	if (btype == BOARD_H4_MENELAUS){
@@ -219,15 +236,16 @@ int dram_init (void)
 
 	if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) {
 		do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY);	/* init other chip select */
-		size0 = size1 = SZ_32M;
-	} else if (mtype == SDR_DISCRETE)
-		size0 = SZ_128M;
-	else
-		size0 = SZ_64M;
+	}
+	size0 = get_sdr_cs_size(SDRC_CS0_OSET);
+	size1 = get_sdr_cs_size(SDRC_CS1_OSET);
 
 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 	gd->bd->bi_dram[0].size = size0;
-	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	if(rev == CPU_2420_2422_ES1) /* ES1's 128MB remap granularity isn't worth doing */
+		gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	else /* ES2 and above can remap at 32MB granularity */
+		gd->bd->bi_dram[1].start = PHYS_SDRAM_1+size0;
 	gd->bd->bi_dram[1].size = size1;
 
 	return 0;
diff --git a/board/omap2420h4/sys_info.c b/board/omap2420h4/sys_info.c
index 121d67916..9864d3e48 100644
--- a/board/omap2420h4/sys_info.c
+++ b/board/omap2420h4/sys_info.c
@@ -29,6 +29,16 @@
 #include <i2c.h>
 
 /**************************************************************************
+ * get_prod_id() - get id info from chips
+ ***************************************************************************/
+static u32 get_prod_id(void)
+{
+	u32 p;
+	p = __raw_readl(PRODUCTION_ID); /* get production ID */
+	return((p & CPU_242X_PID_MASK) >> 16);
+}
+
+/**************************************************************************
  * get_cpu_type() - low level get cpu type
  * - no C globals yet.
  * - just looking to say if this is a 2422 or 2420 or ...
@@ -40,6 +50,14 @@ u32 get_cpu_type(void)
 {
 	u32 v;
 
+	switch(get_prod_id()){
+		case 1:;/* 2420 */
+		case 2: return(CPU_2420); break; /* 2420 pop */
+		case 4: return(CPU_2422); break;
+		case 8: return(CPU_2423); break;
+		default: break;  /* early 2420/2422's unmarked */
+	}
+
 	v = __raw_readl(TAP_IDCODE_REG);
 	v &= CPU_24XX_ID_MASK;
 	if (v == CPU_2420_CHIPID) {	  /* currently 2420 and 2422 have same id */
@@ -61,6 +79,16 @@ u32 get_cpu_rev(void)
 	v = v >> 28;
 	return(v+1);  /* currently 2422 and 2420 match up */
 }
+/****************************************************
+ * is_mem_sdr() - return 1 if mem type in use is SDR
+ ****************************************************/
+u32 is_mem_sdr(void)
+{
+	volatile u32 *burst = (volatile u32 *)(SDRC_MR_0+SDRC_CS0_OSET);
+	if(*burst == H4_2420_SDRC_MR_0_SDR)
+		return(1);
+	return(0);
+}
 
 /***********************************************************
  * get_mem_type() - identify type of mDDR part used.
@@ -70,24 +98,40 @@ u32 get_cpu_rev(void)
  *************************************************************/
 u32 get_mem_type(void)
 {
-	volatile u32 *burst = (volatile u32 *)(SDRC_MR_0+SDRC_CS0_OSET);
+	u32 cpu, sdr = is_mem_sdr();
 
-	if (get_cpu_type() == CPU_2422)
+	cpu = get_cpu_type();
+	if (cpu == CPU_2422 || cpu == CPU_2423)
 		return(DDR_STACKED);
 
+	if(get_prod_id() == 0x2)
+		return(XDR_POP);
+
 	if (get_board_type() == BOARD_H4_MENELAUS)
-		if(*burst == H4_2420_SDRC_MR_0_SDR)
+		if(sdr)
 			return(SDR_DISCRETE);
 		else
 			return(DDR_COMBO);
 	else
-		if(*burst == H4_2420_SDRC_MR_0_SDR) /* SDP + SDR kit */
+		if(sdr) /* SDP + SDR kit */
 			return(SDR_DISCRETE);
 		else
 			return(DDR_DISCRETE); /* origional SDP */
 }
 
 /***********************************************************************
+ * get_cs0_size() - get size of chip select 0/1
+ ************************************************************************/
+u32 get_sdr_cs_size(u32 offset)
+{
+	u32 size;
+	size = __raw_readl(SDRC_MCFG_0+offset) >> 8; /* get ram size field */
+	size &= 0x2FF;   /* remove unwanted bits */
+	size *= SZ_2M;   /* find size in MB */
+	return(size);
+}
+
+/***********************************************************************
  * get_board_type() - get board type based on current production stats.
  *  --- NOTE: 2 I2C EEPROMs will someday be populated with proper info.
  *      when they are available we can get info from there.  This should
@@ -104,7 +148,7 @@ u32 get_board_type(void)
 /******************************************************************
  * get_sysboot_value() - get init word settings (dip switch on h4)
  ******************************************************************/
-u32 get_sysboot_value(void)
+inline u32 get_sysboot_value(void)
 {
 	return(0x00000FFF & __raw_readl(CONTROL_STATUS));
 }
@@ -193,22 +237,53 @@ u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound)
  *********************************************************************/
 void display_board_info(u32 btype)
 {
-	char cpu_2420[] = "2420";
+	char cpu_2420[] = "2420";   /* cpu type */
 	char cpu_2422[] = "2422";
-	char db_men[] = "Menelaus";
-	char db_ip[]= "IP";
-	char *cpu_s, *db_s;
-	u32 cpu = get_cpu_type();
+	char cpu_2423[] = "2423";
+	char db_men[] = "Menelaus"; /* board type */
+	char db_ip[] = "IP";
+	char mem_sdr[] = "mSDR";    /* memory type */
+	char mem_ddr[] = "mDDR";
+	char t_tst[] = "TST";	    /* security level */
+	char t_emu[] = "EMU";
+	char t_hs[] = "HS";
+	char t_gp[] = "GP";
+	char unk[] = "?";
 
-	if(cpu == CPU_2420)
-		cpu_s = cpu_2420;
+	char *cpu_s, *db_s, *mem_s, *sec_s;
+	u32 cpu, rev, sec;
+
+	rev = get_cpu_rev();
+	cpu = get_cpu_type();
+	sec = get_device_type();
+
+	if(is_mem_sdr())
+		mem_s = mem_sdr;
 	else
+		mem_s = mem_ddr;
+
+	if(cpu == CPU_2423)
+		cpu_s = cpu_2423;
+	else if (cpu == CPU_2422)
 		cpu_s = cpu_2422;
+	else
+		cpu_s = cpu_2420;
+
 	if(btype ==  BOARD_H4_MENELAUS)
 		db_s = db_men;
 	else
 		db_s = db_ip;
-	printf("TI H4 SDP Base Board with OMAP%s %s Daughter Board\n",cpu_s, db_s);
+
+	switch(sec){
+		case TST_DEVICE: sec_s = t_tst; break;
+		case EMU_DEVICE: sec_s = t_emu; break;
+		case HS_DEVICE:  sec_s = t_hs; break;
+		case GP_DEVICE:  sec_s = t_gp; break;
+		default: sec_s = unk;
+	}
+
+	printf("OMAP%s-%s revision %d\n", cpu_s, sec_s, rev-1);
+	printf("TI H4 SDP Base Board + %s Daughter Board + %s \n", db_s, mem_s);
 }
 
 /*************************************************************************
@@ -230,7 +305,7 @@ u32 get_board_rev(void)
 /********************************************************
  *  get_base(); get upper addr of current execution
  *******************************************************/
-static u32 get_base(void)
+u32 get_base(void)
 {
 	u32  val;
 	__asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory");
@@ -242,7 +317,7 @@ static u32 get_base(void)
 /********************************************************
  *  get_base2(); get 2upper addr of current execution
  *******************************************************/
-static u32 get_base2(void)
+u32 get_base2(void)
 {
 	u32  val;
 	__asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory");
@@ -300,3 +375,14 @@ u32 running_from_internal_boot(void)
 	else
 		return(0);
 }
+
+/*************************************************************
+ *  get_device_type(): tell if GP/HS/EMU/TST
+ *************************************************************/
+u32 get_device_type(void)
+{
+	int mode;
+	mode = __raw_readl(CONTROL_STATUS) & (BIT10|BIT9|BIT8);
+	return(mode >>= 8);
+}
+
diff --git a/drivers/omap24xx_i2c.c b/drivers/omap24xx_i2c.c
index 383dfcbb6..7dab78685 100644
--- a/drivers/omap24xx_i2c.c
+++ b/drivers/omap24xx_i2c.c
@@ -32,12 +32,16 @@
 
 static void wait_for_bb (void);
 static u16 wait_for_pin (void);
-void flush_fifo(void);
+static void flush_fifo(void);
 
 void i2c_init (int speed, int slaveadd)
 {
 	u16 scl;
 
+	outw(0x2, I2C_SYSC); /* for ES2 after soft reset */
+	udelay(1000);
+	outw(0x0, I2C_SYSC); /* will probably self clear but */
+
 	if (inw (I2C_CON) & I2C_CON_EN) {
 		outw (0, I2C_CON);
 		udelay (50000);
@@ -52,11 +56,14 @@ void i2c_init (int speed, int slaveadd)
 	/* own address */
 	outw (slaveadd, I2C_OA);
 	outw (I2C_CON_EN, I2C_CON);
-	outw (0, I2C_CNT);
+
 	/* have to enable intrrupts or OMAP i2c module doesn't work */
 	outw (I2C_IE_XRDY_IE | I2C_IE_RRDY_IE | I2C_IE_ARDY_IE |
 	      I2C_IE_NACK_IE | I2C_IE_AL_IE, I2C_IE);
 	udelay (1000);
+	flush_fifo();
+	outw (0xFFFF, I2C_STAT);
+	outw (0, I2C_CNT);
 }
 
 static int i2c_read_byte (u8 devaddr, u8 regoffset, u8 * value)
@@ -160,11 +167,15 @@ static int i2c_write_byte (u8 devaddr, u8 regoffset, u8 value)
 	}
 
 	if (!i2c_error) {
+		int eout = 200;
+
 		outw (I2C_CON_EN, I2C_CON);
 		while ((stat = inw (I2C_STAT)) || (inw (I2C_CON) & I2C_CON_MST)) {
 			udelay (1000);
 			/* have to read to clear intrrupt */
 			outw (0xFFFF, I2C_STAT);
+			if(--eout == 0) /* better leave with error than hang */
+				break;
 		}
 	}
 	flush_fifo();
@@ -173,7 +184,7 @@ static int i2c_write_byte (u8 devaddr, u8 regoffset, u8 value)
 	return i2c_error;
 }
 
-void flush_fifo(void)
+static void flush_fifo(void)
 {	u16 stat;
 
 	/* note: if you try and read data when its not there or ready
diff --git a/include/asm-arm/arch-arm1136/clocks.h b/include/asm-arm/arch-arm1136/clocks.h
index bd1b08832..2a95af181 100644
--- a/include/asm-arm/arch-arm1136/clocks.h
+++ b/include/asm-arm/arch-arm1136/clocks.h
@@ -57,8 +57,7 @@
 #define II_MPU_DIV       0x2    /* mpu = core/2 */
 #define II_DSP_DIV       0x343  /* dsp & iva divider */
 #define II_GFX_DIV       0x2
-#define II_BUS_DIV       0x04600C26
-#define II_BUS_DIV_ES1   0x04601026
+#define II_BUS_DIV       0x04601026
 #define II_DPLL_300      0x01832100
 
 /****************************************************************************;
@@ -87,8 +86,7 @@
 #define III_MPU_DIV       0x2    /* mpu = core/2 */
 #define III_DSP_DIV       0x23C3 /* dsp & iva divider sych enabled*/
 #define III_GFX_DIV       0x2
-#define III_BUS_DIV       0x08300c44
-#define III_BUS_DIV_ES1   0x08301044
+#define III_BUS_DIV       0x08301044
 #define III_DPLL_266      0x01885500
 
 /* set defaults for boot up */
@@ -98,7 +96,6 @@
 # define DSP_DIV          II_DSP_DIV
 # define GFX_DIV          II_GFX_DIV
 # define BUS_DIV          II_BUS_DIV
-# define BUS_DIV_ES1      II_BUS_DIV_ES1
 # define DPLL_VAL         II_DPLL_300
 #elif PRCM_CONFIG_III
 # define DPLL_OUT         III_DPLL_OUT_X2
@@ -106,7 +103,6 @@
 # define DSP_DIV          III_DSP_DIV
 # define GFX_DIV          III_GFX_DIV
 # define BUS_DIV          III_BUS_DIV
-# define BUS_DIV_ES1      III_BUS_DIV_ES1
 # define DPLL_VAL         III_DPLL_266
 #endif
 
diff --git a/include/asm-arm/arch-arm1136/i2c.h b/include/asm-arm/arch-arm1136/i2c.h
index 3e37f4dab..7248950e5 100644
--- a/include/asm-arm/arch-arm1136/i2c.h
+++ b/include/asm-arm/arch-arm1136/i2c.h
@@ -33,6 +33,7 @@
 #define I2C_BUF                 (I2C_BASE + 0x14)
 #define I2C_CNT                 (I2C_BASE + 0x18)
 #define I2C_DATA                (I2C_BASE + 0x1c)
+#define I2C_SYSC                (I2C_BASE + 0x20)
 #define I2C_CON                 (I2C_BASE + 0x24)
 #define I2C_OA                  (I2C_BASE + 0x28)
 #define I2C_SA                  (I2C_BASE + 0x2c)
diff --git a/include/asm-arm/arch-arm1136/mem.h b/include/asm-arm/arch-arm1136/mem.h
index dfaf56876..c81f1c437 100644
--- a/include/asm-arm/arch-arm1136/mem.h
+++ b/include/asm-arm/arch-arm1136/mem.h
@@ -13,7 +13,7 @@
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
@@ -25,8 +25,8 @@
 #ifndef _OMAP24XX_MEM_H_
 #define _OMAP24XX_MEM_H_
 
-#define SDRC_CS0_OSET    0x0
-#define SDRC_CS1_OSET    0x30  /* mirror CS1 regs appear offset 0x30 from CS0 */
+#define SDRC_CS0_OSET	 0x0
+#define SDRC_CS1_OSET	 0x30  /* mirror CS1 regs appear offset 0x30 from CS0 */
 
 #ifndef __ASSEMBLY__
 /* struct's for holding data tables for current boards, they are getting used
@@ -40,8 +40,7 @@ struct sdrc_data_s {
 	u32    sdrc_rfr_ctrl;
 	u32    sdrc_mr_0_ddr;
 	u32    sdrc_mr_0_sdr;
-	u32    sdrc_dlla_ctrl;
-	u32    sdrc_dllb_ctrl;
+	u32    sdrc_dllab_ctrl;
 } /*__attribute__ ((packed))*/;
 typedef struct sdrc_data_s sdrc_data_t;
 
@@ -49,129 +48,109 @@ typedef enum {
 	STACKED		= 0,
 	IP_DDR		= 1,
 	COMBO_DDR	= 2,
-	IP_SDR	 	= 3,
+	IP_SDR		= 3,
 } mem_t;
 
 #endif
 
 /* Slower full frequency range default timings for x32 operation*/
-#define H4_2420_SDRC_SHARING               0x00000100
+#define H4_2420_SDRC_SHARING		0x00000100
 #define H4_2420_SDRC_MDCFG_0_SDR	0x00D04010 /* discrete sdr module */
 #define H4_2420_SDRC_MR_0_SDR		0x00000031
 #define H4_2420_SDRC_MDCFG_0_DDR	0x01702011 /* descrite ddr module */
 #define H4_2420_COMBO_MDCFG_0_DDR	0x00801011 /* combo module */
 #define H4_2420_SDRC_MR_0_DDR		0x00000032
 
-#ifndef CONFIG_OPTIMIZE_DDR
-# define H4_2420_SDRC_ACTIM_CTRLA_0	0x9bead909
-# define H4_2420_SDRC_ACTIM_CTRLB_0	0x00000014
-# define H4_2420_SDRC_RFR_CTRL_ES1	0x00002401
-# define H4_2420_SDRC_RFR_CTRL		0x0002da01
-#endif
-#define H4_2420_SDRC_DLLA_CTRL		0x0000E307 /* DLL value used for 50MHz */
-#define H4_2420_SDRC_DLLB_CTRL		0x0000E307 /* allow DPLLout*1 to work */
-
 #define H4_2422_SDRC_SHARING		0x00004b00
 #define H4_2422_SDRC_MDCFG_0_DDR	0x00801011 /* stacked ddr on 2422 */
-#ifndef CONFIG_OPTIMIZE_DDR
-# define H4_2422_SDRC_ACTIM_CTRLA_0	0x9BEAD909
-# define H4_2422_SDRC_ACTIM_CTRLB_0	0x00000020
-# define H4_2422_SDRC_RFR_CTRL_ES1	0x00002401
-# define H4_2422_SDRC_RFR_CTRL		0x0002da01
-#endif
 #define H4_2422_SDRC_MR_0_DDR		0x00000032
-#define H4_2422_SDRC_DLLA_CTRL		0x00007307
-#define H4_2422_SDRC_DLLB_CTRL		0x00007307
 
-/* optimized timings */
+/* ES1 work around timings */
+#define H4_242x_SDRC_ACTIM_CTRLA_0_ES1	0x9bead909  /* 165Mhz for use with 100/133 */
+#define H4_242x_SDRC_ACTIM_CTRLB_0_ES1	0x00000020
+#define H4_242x_SDRC_RFR_CTRL_ES1	    0x00002401	/* use over refresh for ES1 */
+
+/* optimized timings good for current shipping parts */
 #define H4_242X_SDRC_ACTIM_CTRLA_0_100MHz  0x5A59B485
 #define H4_242X_SDRC_ACTIM_CTRLB_0_100MHz  0x0000000e
-#define H4_242X_SDRC_ACTIM_CTRLA_0_133MHz  0x8BA6E6C8	/* temp warn 0 settigs */
-#define H4_242X_SDRC_ACTIM_CTRLB_0_133MHz  0x00000010   /* temp warn 0 settings */
-#define H4_242X_SDRC_RFR_CTRL_100MHz	0x0002da01	/* this is not optimal yet */
-#define H4_242X_SDRC_RFR_CTRL_133MHz	0x0003de01
-
-#ifdef CONFIG_OPTIMIZE_DDR
-# ifdef PRCM_CONFIG_II
-#  define H4_2420_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_100MHz
-#  define H4_2420_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_100MHz
-#  define H4_2420_SDRC_RFR_CTRL_ES1	H4_242X_SDRC_RFR_CTRL_100MHz
-#  define H4_2420_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_100MHz
-# elif PRCM_CONFIG_III
-#  define H4_2420_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_133MHz
-#  define H4_2420_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_133MHz
-#  define H4_2420_SDRC_RFR_CTRL_ES1	H4_242X_SDRC_RFR_CTRL_133MHz
-#  define H4_2420_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_133MHz
-# endif
-# define H4_2422_SDRC_ACTIM_CTRLA_0	H4_2420_SDRC_ACTIM_CTRLA_0
-# define H4_2422_SDRC_ACTIM_CTRLB_0	H4_2420_SDRC_ACTIM_CTRLB_0
-# define H4_2422_SDRC_RFR_CTRL_ES1	H4_2420_SDRC_RFR_CTRL_ES1
-# define H4_2422_SDRC_RFR_CTRL		H4_2420_SDRC_RFR_CTRL
+#define H4_242X_SDRC_ACTIM_CTRLA_0_133MHz  0x8BA6E6C8 /* temp warn 0 settings */
+#define H4_242X_SDRC_ACTIM_CTRLB_0_133MHz  0x00000010 /* temp warn 0 settings */
+#define H4_242X_SDRC_RFR_CTRL_100MHz	   0x0002da01
+#define H4_242X_SDRC_RFR_CTRL_133MHz	   0x0003de01
+#define H4_242x_SDRC_DLLAB_CTRL_100MHz	   0x0000980E /* 72deg, allow DPLLout*1 to work (combo)*/
+#define H4_242x_SDRC_DLLAB_CTRL_133MHz	   0x0000690E /* 72deg, for ES2 */
+
+#ifdef PRCM_CONFIG_II
+# define H4_2420_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_100MHz
+# define H4_2420_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_100MHz
+# define H4_2420_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_100MHz
+# define H4_2420_SDRC_DLLAB_CTRL    H4_242x_SDRC_DLLAB_CTRL_100MHz
+# define H4_2422_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_100MHz
+# define H4_2422_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_100MHz
+# define H4_2422_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_100MHz
+# define H4_2422_SDRC_DLLAB_CTRL    H4_242x_SDRC_DLLAB_CTRL_100MHz
+#elif PRCM_CONFIG_III
+# define H4_2420_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_133MHz
+# define H4_2420_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_133MHz
+# define H4_2420_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_133MHz
+# define H4_2420_SDRC_DLLAB_CTRL    H4_242x_SDRC_DLLAB_CTRL_133MHz
+# define H4_2422_SDRC_ACTIM_CTRLA_0	H4_242X_SDRC_ACTIM_CTRLA_0_100MHz
+# define H4_2422_SDRC_ACTIM_CTRLB_0	H4_242X_SDRC_ACTIM_CTRLB_0_100MHz
+# define H4_2422_SDRC_RFR_CTRL		H4_242X_SDRC_RFR_CTRL_100MHz
+# define H4_2422_SDRC_DLLAB_CTRL    H4_242x_SDRC_DLLAB_CTRL_100MHz
 #endif
 
 
 /* GPMC settings */
-#ifdef PRCM_CONFIG_II        /* L3 at 100MHz */
-#ifdef CFG_NAND_BOOT
-#define H4_24XX_GPMC_CONFIG1_0   0x0
-#define H4_24XX_GPMC_CONFIG2_0   0x00141400
-#define H4_24XX_GPMC_CONFIG3_0   0x00141400
-#define H4_24XX_GPMC_CONFIG4_0   0x0F010F01
-#define H4_24XX_GPMC_CONFIG5_0   0x010C1414
-#define H4_24XX_GPMC_CONFIG6_0   0x00000A80
-#else
-#define H4_24XX_GPMC_CONFIG1_0   0x3
-#define H4_24XX_GPMC_CONFIG2_0   0x000f0f01
-#define H4_24XX_GPMC_CONFIG3_0   0x00050502
-#define H4_24XX_GPMC_CONFIG4_0   0x0C060C06
-#define H4_24XX_GPMC_CONFIG5_0   0x01131F1F
-#endif
-#define H4_24XX_GPMC_CONFIG7_0   (0x00000C40|(H4_CS0_BASE >> 24))
-
-#define H4_24XX_GPMC_CONFIG1_1   0x00011000
-#define H4_24XX_GPMC_CONFIG2_1   0x001F1F00
-#define H4_24XX_GPMC_CONFIG3_1   0x00080802
-#define H4_24XX_GPMC_CONFIG4_1   0x1C091C09
-#define H4_24XX_GPMC_CONFIG5_1   0x031A1F1F
-#define H4_24XX_GPMC_CONFIG6_1   0x000003C2
-#define H4_24XX_GPMC_CONFIG7_1   (0x00000F40|(H4_CS1_BASE >> 24))
-#endif
-
-#ifdef PRCM_CONFIG_III  /* L3 at 133MHz */
-#ifdef CFG_NAND_BOOT
-#define H4_24XX_GPMC_CONFIG1_0   0x0
-#define H4_24XX_GPMC_CONFIG2_0   0x00141400
-#define H4_24XX_GPMC_CONFIG3_0   0x00141400
-#define H4_24XX_GPMC_CONFIG4_0   0x0F010F01
-#define H4_24XX_GPMC_CONFIG5_0   0x010C1414
-#define H4_24XX_GPMC_CONFIG6_0   0x00000A80
-#else
-#define H4_24XX_GPMC_CONFIG1_0   0x3
-#define H4_24XX_GPMC_CONFIG2_0   0x00151501
-#define H4_24XX_GPMC_CONFIG3_0   0x00060602
-#define H4_24XX_GPMC_CONFIG4_0   0x10081008
-#define H4_24XX_GPMC_CONFIG5_0   0x01131F1F
-#define H4_24XX_GPMC_CONFIG6_0   0x000004c4
-#endif
-#define H4_24XX_GPMC_CONFIG7_0   (0x00000C40|(H4_CS0_BASE >> 24))
-
-#define H4_24XX_GPMC_CONFIG1_1   0x00011000
-#define H4_24XX_GPMC_CONFIG2_1   0x001f1f01
-#define H4_24XX_GPMC_CONFIG3_1   0x00080803
-#define H4_24XX_GPMC_CONFIG4_1   0x1C091C09
-#define H4_24XX_GPMC_CONFIG5_1   0x041f1F1F
-#define H4_24XX_GPMC_CONFIG6_1   0x000004C4
-#define H4_24XX_GPMC_CONFIG7_1   (0x00000F40|(H4_CS1_BASE >> 24))
-#endif
-
-#ifdef CONFIG_APTIX /* SDRC-SDR for Aptix x16 */
-#define VAL_H4_SDRC_SHARING_16   0x00002400  /* No-Tristate, 16bit on D31-D16, CS1=dont care */
-#define VAL_H4_SDRC_SHARING      0x00000100
-#define VAL_H4_SDRC_MCFG_0_16    0x00901000  /* SDR-SDRAM,External,x16 bit */
-#define VAL_H4_SDRC_MCFG_0       0x01702011
-#define VAL_H4_SDRC_MR_0         0x00000029  /* Burst=2, Serial Mode, CAS 3*/
-#define VAL_H4_SDRC_RFR_CTRL_0   0x00001703  /* refresh time */
-#define VAL_H4_SDRC_DCDL2_CTRL   0x5A59B485
-#endif
-
-#endif
+#ifdef PRCM_CONFIG_II	     /* L3 at 100MHz */
+# ifdef CFG_NAND_BOOT
+#  define H4_24XX_GPMC_CONFIG1_0   0x0
+#  define H4_24XX_GPMC_CONFIG2_0   0x00141400
+#  define H4_24XX_GPMC_CONFIG3_0   0x00141400
+#  define H4_24XX_GPMC_CONFIG4_0   0x0F010F01
+#  define H4_24XX_GPMC_CONFIG5_0   0x010C1414
+#  define H4_24XX_GPMC_CONFIG6_0   0x00000A80
+# else	/* else NOR */
+#  define H4_24XX_GPMC_CONFIG1_0   0x3
+#  define H4_24XX_GPMC_CONFIG2_0   0x000f0f01
+#  define H4_24XX_GPMC_CONFIG3_0   0x00050502
+#  define H4_24XX_GPMC_CONFIG4_0   0x0C060C06
+#  define H4_24XX_GPMC_CONFIG5_0   0x01131F1F
+# endif /* endif CFG_NAND_BOOT */
+# define H4_24XX_GPMC_CONFIG7_0	  (0x00000C40|(H4_CS0_BASE >> 24))
+# define H4_24XX_GPMC_CONFIG1_1	  0x00011000
+# define H4_24XX_GPMC_CONFIG2_1	  0x001F1F00
+# define H4_24XX_GPMC_CONFIG3_1	  0x00080802
+# define H4_24XX_GPMC_CONFIG4_1	  0x1C091C09
+# define H4_24XX_GPMC_CONFIG5_1	  0x031A1F1F
+# define H4_24XX_GPMC_CONFIG6_1	  0x000003C2
+# define H4_24XX_GPMC_CONFIG7_1	  (0x00000F40|(H4_CS1_BASE >> 24))
+#endif /* endif PRCM_CONFIG_II */
+
+#ifdef PRCM_CONFIG_III	/* L3 at 133MHz */
+# ifdef CFG_NAND_BOOT
+#  define H4_24XX_GPMC_CONFIG1_0   0x0
+#  define H4_24XX_GPMC_CONFIG2_0   0x00141400
+#  define H4_24XX_GPMC_CONFIG3_0   0x00141400
+#  define H4_24XX_GPMC_CONFIG4_0   0x0F010F01
+#  define H4_24XX_GPMC_CONFIG5_0   0x010C1414
+#  define H4_24XX_GPMC_CONFIG6_0   0x00000A80
+# else	/* NOR boot */
+#  define H4_24XX_GPMC_CONFIG1_0   0x3
+#  define H4_24XX_GPMC_CONFIG2_0   0x00151501
+#  define H4_24XX_GPMC_CONFIG3_0   0x00060602
+#  define H4_24XX_GPMC_CONFIG4_0   0x10081008
+#  define H4_24XX_GPMC_CONFIG5_0   0x01131F1F
+#  define H4_24XX_GPMC_CONFIG6_0   0x000004c4
+# endif /* endif CFG_NAND_BOOT */
+# define H4_24XX_GPMC_CONFIG7_0	  (0x00000C40|(H4_CS0_BASE >> 24))
+# define H4_24XX_GPMC_CONFIG1_1	  0x00011000
+# define H4_24XX_GPMC_CONFIG2_1	  0x001f1f01
+# define H4_24XX_GPMC_CONFIG3_1	  0x00080803
+# define H4_24XX_GPMC_CONFIG4_1	  0x1C091C09
+# define H4_24XX_GPMC_CONFIG5_1	  0x041f1F1F
+# define H4_24XX_GPMC_CONFIG6_1	  0x000004C4
+# define H4_24XX_GPMC_CONFIG7_1	  (0x00000F40|(H4_CS1_BASE >> 24))
+#endif /* endif CFG_PRCM_III */
+
+#endif /* endif _OMAP24XX_MEM_H_ */
diff --git a/include/asm-arm/arch-arm1136/omap2420.h b/include/asm-arm/arch-arm1136/omap2420.h
index eba385cea..7a7aae6b0 100644
--- a/include/asm-arm/arch-arm1136/omap2420.h
+++ b/include/asm-arm/arch-arm1136/omap2420.h
@@ -37,13 +37,25 @@
 #define A_WRITEPERM0          0x68005058
 #define GP_DEVICE             (BIT8|BIT9)
 
+/* L3 Firewall */
+#define A_REQINFOPERM0        0x68005048
+#define A_READPERM0           0x68005050
+#define A_WRITEPERM0          0x68005058
+
 /* CONTROL */
 #define OMAP2420_CTRL_BASE    (0x48000000)
 #define CONTROL_STATUS        (OMAP2420_CTRL_BASE + 0x2F8)
 
+/* device type */
+#define TST_DEVICE	0x0
+#define EMU_DEVICE	0x1
+#define HS_DEVICE	0x2
+#define GP_DEVICE	0x3
+
 /* TAP information */
 #define OMAP2420_TAP_BASE     (0x48014000)
 #define TAP_IDCODE_REG        (OMAP2420_TAP_BASE+0x204)
+#define PRODUCTION_ID         (OMAP2420_TAP_BASE+0x208)
 
 /* GPMC */
 #define OMAP2420_GPMC_BASE    (0x6800A000)
@@ -76,6 +88,7 @@
 #define OMAP2420_SDRC_BASE 0x68009000
 #define SDRC_SYSCONFIG     (OMAP2420_SDRC_BASE+0x10)
 #define SDRC_STATUS        (OMAP2420_SDRC_BASE+0x14)
+#define SDRC_CS_CFG        (OMAP2420_SDRC_BASE+0x40)
 #define SDRC_SHARING       (OMAP2420_SDRC_BASE+0x44)
 #define SDRC_DLLA_CTRL     (OMAP2420_SDRC_BASE+0x60)
 #define SDRC_DLLB_CTRL     (OMAP2420_SDRC_BASE+0x68)
diff --git a/include/asm-arm/arch-arm1136/rev.h b/include/asm-arm/arch-arm1136/rev.h
deleted file mode 100644
index 6fceb092d..000000000
--- a/include/asm-arm/arch-arm1136/rev.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * (C) Copyright 2004
- * Texas Instruments, <www.ti.com>
- * Richard Woodruff <r-woodruff2@ti.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef _OMAP24XX_REV_H_
-#define _OMAP24XX_REV_H_
-
-typedef	struct	h4_system_data {
-    /* base board info */
-    u32	   base_b_rev;         /* rev from base board i2c */
-    /* cpu board info */
-    u32	   cpu_b_rev;          /* rev from cpu board i2c */
-    u32    cpu_b_mux;          /* mux type on daughter board */
-    u32    cpu_b_ddr_type;     /* mem type */
-    u32    cpu_b_ddr_speed;    /* ddr speed rating */
-    u32    cpu_b_switches;     /* boot ctrl switch settings */
-    /* cpu info */
-    u32	   cpu_type;           /* type of cpu; 2420, 2422, 2430,...*/
-    u32    cpu_rev;            /* rev of given cpu; ES1, ES2,...*/
-} h4_sys_data;
-
-#define CDB_DDR_COMBO                   /* combo part on cpu daughter card */
-#define CDB_DDR_IPDB                    /* 2x16 parts on daughter card */
-
-#define DDR_100         100             /* type found on most mem d-boards */
-#define DDR_111         111             /* some combo parts */
-#define DDR_133         133             /* most combo, some mem d-boards */
-#define DDR_165         165             /* future parts */
-
-#define CPU_2420        0x2420
-#define CPU_2422        0x2422
-
-#define CPU_2422_ES1    1
-#define CPU_2422_ES2    2
-#define CPU_2420_ES1    1
-#define CPU_2420_ES2    2
-
-#endif
diff --git a/include/asm-arm/arch-arm1136/sys_info.h b/include/asm-arm/arch-arm1136/sys_info.h
index ef301ba61..53c231a5e 100644
--- a/include/asm-arm/arch-arm1136/sys_info.h
+++ b/include/asm-arm/arch-arm1136/sys_info.h
@@ -39,7 +39,8 @@ typedef struct  h4_system_data {
 	u32 cpu_rev;		/* rev of given cpu; ES1, ES2,...*/
 } h4_sys_data;
 
-#define SDR_DISCRETE      4
+#define XDR_POP           5      /* package on package part */
+#define SDR_DISCRETE      4      /* 128M memory SDR module*/
 #define DDR_STACKED       3      /* stacked part on 2422 */
 #define DDR_COMBO         2      /* combo part on cpu daughter card (menalaeus) */
 #define DDR_DISCRETE      1      /* 2x16 parts on daughter card */
@@ -50,16 +51,19 @@ typedef struct  h4_system_data {
 #define DDR_165           165    /* future parts */
 
 #define CPU_2420          0x2420
-#define CPU_2422          0x2422
+#define CPU_2422          0x2422 /* 2420 + 64M stacked */
+#define CPU_2423          0x2423 /* 2420 + 96M stacked */
 
 #define CPU_2422_ES1      1
 #define CPU_2422_ES2      2
 #define CPU_2420_ES1      1
 #define CPU_2420_ES2      2
+#define CPU_2420_2422_ES1 1
 
 #define CPU_2420_CHIPID   0x0B5D9000
 #define CPU_24XX_ID_MASK  0x0FFFF000
 #define CPU_242X_REV_MASK 0xF0000000
+#define CPU_242X_PID_MASK 0x000F0000
 
 #define BOARD_H4_MENELAUS 1
 #define BOARD_H4_SDP      2
diff --git a/include/asm-arm/arch-arm1136/sys_proto.h b/include/asm-arm/arch-arm1136/sys_proto.h
index 2cd8455de..9d8e5b262 100644
--- a/include/asm-arm/arch-arm1136/sys_proto.h
+++ b/include/asm-arm/arch-arm1136/sys_proto.h
@@ -44,10 +44,11 @@ u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound);
 u32 get_board_type(void);
 void display_board_info(u32);
 void update_mux(u32,u32);
+u32 get_sdr_cs_size(u32 offset);
 
 u32 running_in_sdram(void);
 u32 running_in_sram(void);
 u32 running_in_flash(void);
 u32 running_from_internal_boot(void);
-
+u32 get_device_type(void);
 #endif
diff --git a/include/configs/omap2420h4.h b/include/configs/omap2420h4.h
index c7916036f..5674e20fc 100644
--- a/include/configs/omap2420h4.h
+++ b/include/configs/omap2420h4.h
@@ -39,11 +39,8 @@
 /*#define CONFIG_VIRTIO          1    #* Using Virtio simulator */
 
 /* Clock config to target*/
-#define PRCM_CONFIG_II		1
-/*#define PRCM_CONFIG_III	1 */
-
-/* Memory configuration on board */
-/*#define CONFIG_OPTIMIZE_DDR	1 */
+#define PRCM_CONFIG_II	1
+//#define PRCM_CONFIG_III		1
 
 #include <asm/arch/omap2420.h>        /* get chip and board defs */
 
@@ -125,11 +122,8 @@
 #ifdef CFG_NAND_BOOT
 #define CONFIG_COMMANDS          (CONFIG_CMD_DFL | CFG_CMD_DHCP | CFG_CMD_I2C | CFG_CMD_NAND | CFG_CMD_JFFS2)
 #else
-#define CONFIG_COMMANDS          (CONFIG_CMD_DFL | CFG_CMD_DHCP | CFG_CMD_I2C | CFG_CMD_JFFS2)
+#define CONFIG_COMMANDS          ((CONFIG_CMD_DFL | CFG_CMD_DHCP | CFG_CMD_I2C | CFG_CMD_JFFS2) & ~CFG_CMD_AUTOSCRIPT)
 #endif
-/* I'd like to get to these. Snap kernel loads if we make MMC go */
-  /* #define CONFIG_COMMANDS       (CONFIG_CMD_DFL | CFG_CMD_NAND | CFG_CMD_JFFS2 | CFG_CMD_DHCP | CFG_CMD_MMC | CFG_CMD_FAT | CFG_CMD_I2C) */
-
 #define CONFIG_BOOTP_MASK        CONFIG_BOOTP_DEFAULT
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
@@ -241,17 +235,21 @@
 #define PHYS_SDRAM_1_SIZE        SZ_32M            /* at least 32 meg */
 #define PHYS_SDRAM_2             OMAP2420_SDRC_CS1
 
+#define PHYS_FLASH_SECT_SIZE     SZ_128K
 #define PHYS_FLASH_1             H4_CS0_BASE	   /* Flash Bank #1 */
 #define PHYS_FLASH_SIZE_1        SZ_32M
 #define PHYS_FLASH_2             (H4_CS0_BASE+SZ_32M) /* same cs, 2 chips in series */
 #define PHYS_FLASH_SIZE_2        SZ_32M
-#define CFG_FLASH_BASE           PHYS_FLASH_1
 
 /*-----------------------------------------------------------------------
  * FLASH and environment organization
  */
+#define CFG_FLASH_BASE           PHYS_FLASH_1
 #define CFG_MAX_FLASH_BANKS      2           /* max number of memory banks */
 #define CFG_MAX_FLASH_SECT       (259)	     /* max number of sectors on one chip */
+#define CFG_MONITOR_BASE	CFG_FLASH_BASE /* Monitor at beginning of flash */
+#define CFG_MONITOR_LEN		SZ_128K      /* Reserve 1 sector */
+#define CFG_FLASH_BANKS_LIST	{ CFG_FLASH_BASE, CFG_FLASH_BASE + PHYS_FLASH_SIZE_1 }
 
 #ifdef CFG_NAND_BOOT
 #define CFG_ENV_IS_IN_NAND	1
@@ -259,11 +257,24 @@
 #else
 #define CFG_ENV_ADDR             (CFG_FLASH_BASE + SZ_128K)
 #define	CFG_ENV_IS_IN_FLASH      1
+#define CFG_ENV_SECT_SIZE	PHYS_FLASH_SECT_SIZE
+#define CFG_ENV_OFFSET	( CFG_MONITOR_BASE + CFG_MONITOR_LEN ) /* Environment after Monitor */
 #endif
 
+
+
+
+/*-----------------------------------------------------------------------
+ * CFI FLASH driver setup
+ */
+#define CFG_FLASH_CFI		1	/* Flash memory is CFI compliant */
+#define CFG_FLASH_CFI_DRIVER	1	/* Use drivers/cfi_flash.c */
+#define CFG_FLASH_USE_BUFFER_WRITE 1	/* Use buffered writes (~10x faster) */
+#define CFG_FLASH_PROTECTION	1	/* Use hardware sector protection */
+
 /* timeout values are in ticks */
-#define CFG_FLASH_ERASE_TOUT     (30*75*CFG_HZ) /* Timeout for Flash Erase */
-#define CFG_FLASH_WRITE_TOUT     (30*75*CFG_HZ) /* Timeout for Flash Write */
+#define CFG_FLASH_ERASE_TOUT     (100*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT     (100*CFG_HZ) /* Timeout for Flash Write */
 
 #define CFG_JFFS2_MEM_NAND