board/p1_p2_rdb:Enable p1_p2_rdb boot from NAND/SD/SPI in SPL

In the earlier patches, the SPL/TPL fraamework was introduced.
For SD/SPI flash booting way, we introduce the SPL to enable a loader stub. The
SPL was loaded by the code from the internal on-chip ROM. The SPL initializes
the DDR according to the SPD and loads the final uboot image into DDR, then
jump to the DDR to begin execution.

For NAND booting way, the nand SPL has size limitation on some board(e.g.
P1010RDB), it can not be more than 4KB, we can call it "minimal SPL", So the
dynamic DDR driver doesn't fit into this minimum SPL. We added the TPL that is
loaded by the the minimal SPL. The TPL initializes the DDR according to the SPD
and loads the final uboot image into DDR,then jump to the DDR to begin execution.

This patch enabled SPL/TPL for P1_P2_RDB to support starting from NAND/SD/SPI
flash with SPL framework and initializing the DDR according to SPD in the SPL/TPL.
Because the minimal SPL load the TPL to L2 SRAM and the jump to the L2 SRAM to
execute, so the section .resetvec is no longer needed.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

8 files changed, 450 insertions, 268 deletions

diff --git a/board/freescale/p1_p2_rdb/Makefile b/board/freescale/p1_p2_rdb/Makefile
index f7b568a..a97bf45 100644
--- a/board/freescale/p1_p2_rdb/Makefile
+++ b/board/freescale/p1_p2_rdb/Makefile
@@ -4,8 +4,27 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+MINIMAL=
+
+ifdef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_INIT_MINIMAL
+MINIMAL=y
+endif
+endif
+
+ifdef MINIMAL
+
+obj-y	+= spl_minimal.o tlb.o law.o
+
+else
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o
+else
 obj-y	+= p1_p2_rdb.o
+obj-$(CONFIG_PCI)  += pci.o
+endif
 obj-y	+= ddr.o
 obj-y	+= law.o
-obj-$(CONFIG_PCI)  += pci.o
 obj-y	+= tlb.o
+
+endif
diff --git a/board/freescale/p1_p2_rdb/ddr.c b/board/freescale/p1_p2_rdb/ddr.c
index 17d3bea..98ee5f1 100644
--- a/board/freescale/p1_p2_rdb/ddr.c
+++ b/board/freescale/p1_p2_rdb/ddr.c
@@ -180,27 +180,22 @@ fsl_ddr_cfg_regs_t ddr_cfg_regs_800 = {
 
 phys_size_t fixed_sdram (void)
 {
-	char buf[32];
 	fsl_ddr_cfg_regs_t ddr_cfg_regs;
 	size_t ddr_size;
 	struct cpu_type *cpu;
 	ulong ddr_freq, ddr_freq_mhz;
 
 	cpu = gd->arch.cpu;
-	/* P1020 and it's derivatives support max 32bit DDR width */
-	if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) {
-		ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2);
-	} else {
-		ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
-	}
+
+	ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+
 #if defined(CONFIG_SYS_RAMBOOT)
 	return ddr_size;
 #endif
 	ddr_freq = get_ddr_freq(0);
 	ddr_freq_mhz = ddr_freq / 1000000;
 
-	printf("Configuring DDR for %s MT/s data rate\n",
-				strmhz(buf, ddr_freq));
+	printf("Configuring DDR for %ld T/s data rate\n", ddr_freq);
 
 	if(ddr_freq_mhz <= 400)
 		memcpy(&ddr_cfg_regs, &ddr_cfg_regs_400, sizeof(ddr_cfg_regs));
@@ -211,8 +206,7 @@ phys_size_t fixed_sdram (void)
 	else if(ddr_freq_mhz <= 800)
 		memcpy(&ddr_cfg_regs, &ddr_cfg_regs_800, sizeof(ddr_cfg_regs));
 	else
-		panic("Unsupported DDR data rate %s MT/s data rate\n",
-					strmhz(buf, ddr_freq));
+		panic("Unsupported DDR data rate %ld T/s\n", ddr_freq);
 
 	/* P1020 and it's derivatives support max 32bit DDR width */
 	if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) {
diff --git a/board/freescale/p1_p2_rdb/spl.c b/board/freescale/p1_p2_rdb/spl.c
new file mode 100644
index 0000000..f30c5fe
--- /dev/null
+++ b/board/freescale/p1_p2_rdb/spl.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <nand.h>
+#include <i2c.h>
+#include <fsl_esdhc.h>
+#include <spi_flash.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define SYSCLK_MASK	0x00200000
+#define BOARDREV_MASK	0x10100000
+
+#define SYSCLK_66	66666666
+#define SYSCLK_100	100000000
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+	u32 val_gpdat, sysclk_gpio;
+
+	val_gpdat = in_be32(&pgpio->gpdat);
+	sysclk_gpio = val_gpdat & SYSCLK_MASK;
+
+	if (sysclk_gpio == 0)
+		return SYSCLK_66;
+	else
+		return SYSCLK_100;
+
+	return 0;
+}
+
+phys_size_t get_effective_memsize(void)
+{
+	return CONFIG_SYS_L2_SIZE;
+}
+
+void board_init_f(ulong bootflag)
+{
+	u32 plat_ratio, bus_clk;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	console_init_f();
+
+	/* Set pmuxcr to allow both i2c1 and i2c2 */
+	setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000);
+	setbits_be32(&gur->pmuxcr,
+		     in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
+
+	/* Read back the register to synchronize the write. */
+	in_be32(&gur->pmuxcr);
+
+#ifdef CONFIG_SPL_SPI_BOOT
+	clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA);
+#endif
+
+	/* initialize selected port with appropriate baud rate */
+	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+	plat_ratio >>= 1;
+	bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
+	gd->bus_clk = bus_clk;
+
+	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+		     bus_clk / 16 / CONFIG_BAUDRATE);
+#ifdef CONFIG_SPL_MMC_BOOT
+	puts("\nSD boot...\n");
+#elif defined(CONFIG_SPL_SPI_BOOT)
+	puts("\nSPI Flash boot...\n");
+#endif
+
+	/* copy code to RAM and jump to it - this should not return */
+	/* NOTE - code has to be copied out of NAND buffer before
+	 * other blocks can be read.
+	 */
+	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
+	bd_t *bd;
+
+	memset(gd, 0, sizeof(gd_t));
+	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
+	memset(bd, 0, sizeof(bd_t));
+	gd->bd = bd;
+	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
+	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
+
+	probecpu();
+	get_clocks();
+	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
+			CONFIG_SPL_RELOC_MALLOC_SIZE);
+
+#ifdef CONFIG_SPL_MMC_BOOT
+	mmc_initialize(bd);
+#endif
+	/* relocate environment function pointers etc. */
+#ifdef CONFIG_SPL_NAND_BOOT
+	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			    (uchar *)CONFIG_ENV_ADDR);
+#endif
+#ifdef CONFIG_SPL_NAND_BOOT
+	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			    (uchar *)CONFIG_ENV_ADDR);
+#endif
+#ifdef CONFIG_SPL_MMC_BOOT
+	mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			   (uchar *)CONFIG_ENV_ADDR);
+#endif
+#ifdef CONFIG_SPL_SPI_BOOT
+	spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			   (uchar *)CONFIG_ENV_ADDR);
+#endif
+
+	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
+	gd->env_valid = 1;
+
+	gd->ram_size = initdram(0);
+#ifdef CONFIG_SPL_NAND_BOOT
+	puts("Tertiary program loader running in sram...");
+#else
+	puts("Second program loader running in sram...\n");
+#endif
+
+#ifdef CONFIG_SPL_MMC_BOOT
+	mmc_boot();
+#elif defined(CONFIG_SPL_SPI_BOOT)
+	spi_boot();
+#elif defined(CONFIG_SPL_NAND_BOOT)
+	nand_boot();
+#endif
+}
diff --git a/board/freescale/p1_p2_rdb/spl_minimal.c b/board/freescale/p1_p2_rdb/spl_minimal.c
new file mode 100644
index 0000000..96a4d1c
--- /dev/null
+++ b/board/freescale/p1_p2_rdb/spl_minimal.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <asm/io.h>
+#include <nand.h>
+#include <linux/compiler.h>
+#include <asm/fsl_law.h>
+#include <fsl_ddr_sdram.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+#define SYSCLK_MASK	0x00200000
+#define BOARDREV_MASK	0x10100000
+
+#define SYSCLK_66	66666666
+#define SYSCLK_100	100000000
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+	ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+	u32 val_gpdat, sysclk_gpio;
+
+	val_gpdat = in_be32(&pgpio->gpdat);
+	sysclk_gpio = val_gpdat & SYSCLK_MASK;
+
+	if (sysclk_gpio == 0)
+		return SYSCLK_66;
+	else
+		return SYSCLK_100;
+
+	return 0;
+}
+
+void board_init_f(ulong bootflag)
+{
+	u32 plat_ratio;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
+	set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
+	set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
+#endif
+
+	/* initialize selected port with appropriate baud rate */
+	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+	plat_ratio >>= 1;
+	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
+
+	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
+
+	puts("\nNAND boot... ");
+
+	/* copy code to RAM and jump to it - this should not return */
+	/* NOTE - code has to be copied out of NAND buffer before
+	 * other blocks can be read.
+	 */
+	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+	puts("\nSecond program loader running in sram...");
+	nand_boot();
+}
+
+void putc(char c)
+{
+	if (c == '\n')
+		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
+
+	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
+}
+
+void puts(const char *str)
+{
+	while (*str)
+		putc(*str++);
+}
diff --git a/board/freescale/p1_p2_rdb/tlb.c b/board/freescale/p1_p2_rdb/tlb.c
index bc98972..73f5729 100644
--- a/board/freescale/p1_p2_rdb/tlb.c
+++ b/board/freescale/p1_p2_rdb/tlb.c
@@ -37,6 +37,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 1, BOOKE_PAGESZ_1M, 1),
 
+#ifndef CONFIG_SPL_BUILD
 	/* W**G* - Flash/promjet, localbus */
 	/* This will be changed to *I*G* after relocation to RAM. */
 	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
@@ -55,6 +56,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			0, 4, BOOKE_PAGESZ_256K, 1),
 
 #endif /* #if defined(CONFIG_PCI) */
+#endif
 	/* *I*G - NAND */
 	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
@@ -65,7 +67,21 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 6, BOOKE_PAGESZ_1M, 1),
 
-#if defined(CONFIG_SYS_RAMBOOT)
+#ifdef CONFIG_SYS_INIT_L2_ADDR
+	/* *I*G - L2SRAM */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
+		      0, 11, BOOKE_PAGESZ_256K, 1),
+#if CONFIG_SYS_L2_SIZE >= (256 << 10)
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR + 0x40000,
+		      CONFIG_SYS_INIT_L2_ADDR_PHYS + 0x40000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 12, BOOKE_PAGESZ_256K, 1),
+#endif
+#endif
+
+#if defined(CONFIG_SYS_RAMBOOT) || \
+	(defined(CONFIG_SPL) && !defined(CONFIG_SPL_COMMON_INIT_DDR))
 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
 			MAS3_SX|MAS3_SW|MAS3_SR, 0,
 			0, 7, BOOKE_PAGESZ_1G, 1)
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h
index 0f04067..110ba5f 100644
--- a/include/configs/P1_P2_RDB.h
+++ b/include/configs/P1_P2_RDB.h
@@ -20,39 +20,119 @@
 
 #ifdef CONFIG_P1011RDB
 #define CONFIG_P1011
+#define CONFIG_SYS_L2_SIZE	(256 << 10)
 #endif
 #ifdef CONFIG_P1020RDB
 #define CONFIG_P1020
+#define CONFIG_SYS_L2_SIZE	(256 << 10)
 #endif
 #ifdef CONFIG_P2010RDB
 #define CONFIG_P2010
+#define CONFIG_SYS_L2_SIZE	(512 << 10)
 #endif
 #ifdef CONFIG_P2020RDB
 #define CONFIG_P2020
-#endif
-
-#ifdef CONFIG_NAND
-#define CONFIG_NAND_U_BOOT		1
-#define CONFIG_RAMBOOT_NAND		1
-#ifdef CONFIG_NAND_SPL
-#define CONFIG_SYS_TEXT_BASE_SPL 0xfff00000
-#define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE_SPL /* start of monitor */
-#else
-#define CONFIG_SYS_LDSCRIPT $(CPUDIR)/u-boot-nand.lds
-#define CONFIG_SYS_TEXT_BASE		0xf8f82000
-#endif /* CONFIG_NAND_SPL */
+#define CONFIG_SYS_L2_SIZE	(512 << 10)
 #endif
 
 #ifdef CONFIG_SDCARD
-#define CONFIG_RAMBOOT_SDCARD		1
-#define CONFIG_SYS_TEXT_BASE		0x11000000
-#define CONFIG_RESET_VECTOR_ADDRESS	0x110bfffc
+#define CONFIG_SPL
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_MMC_MINIMAL
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_TARGET		"u-boot-with-spl.bin"
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SYS_TEXT_BASE		0x11001000
+#define CONFIG_SPL_TEXT_BASE		0xf8f81000
+#define CONFIG_SPL_PAD_TO		0x20000
+#define CONFIG_SPL_MAX_SIZE		(128 * 1024)
+#define CONFIG_SYS_MMC_U_BOOT_SIZE	(768 << 10)
+#define CONFIG_SYS_MMC_U_BOOT_DST	(0x11000000)
+#define CONFIG_SYS_MMC_U_BOOT_START	(0x11000000)
+#define CONFIG_SYS_MMC_U_BOOT_OFFS	(129 << 10)
+#define CONFIG_SYS_MPC85XX_NO_RESETVEC
+#define CONFIG_SYS_LDSCRIPT	"arch/powerpc/cpu/mpc85xx/u-boot.lds"
+#define CONFIG_SPL_MMC_BOOT
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SPL_COMMON_INIT_DDR
+#endif
 #endif
 
 #ifdef CONFIG_SPIFLASH
-#define CONFIG_RAMBOOT_SPIFLASH		1
-#define CONFIG_SYS_TEXT_BASE		0x11000000
-#define CONFIG_RESET_VECTOR_ADDRESS	0x110bfffc
+#define CONFIG_SPL
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_SPI_SUPPORT
+#define CONFIG_SPL_SPI_FLASH_SUPPORT
+#define CONFIG_SPL_SPI_FLASH_MINIMAL
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_TARGET		"u-boot-with-spl.bin"
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SYS_TEXT_BASE		0x11001000
+#define CONFIG_SPL_TEXT_BASE		0xf8f81000
+#define CONFIG_SPL_PAD_TO		0x20000
+#define CONFIG_SPL_MAX_SIZE		(128 * 1024)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE	(768 << 10)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_DST		(0x11000000)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_START	(0x11000000)
+#define CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS	(128 << 10)
+#define CONFIG_SYS_MPC85XX_NO_RESETVEC
+#define CONFIG_SYS_LDSCRIPT	"arch/powerpc/cpu/mpc85xx/u-boot.lds"
+#define CONFIG_SPL_SPI_BOOT
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SPL_COMMON_INIT_DDR
+#endif
+#endif
+
+#ifdef CONFIG_NAND
+#define CONFIG_SPL
+#define CONFIG_TPL
+#ifdef CONFIG_TPL_BUILD
+#define CONFIG_SPL_NAND_BOOT
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_NAND_INIT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_COMMON_INIT_DDR
+#define CONFIG_SPL_MAX_SIZE		(128 << 10)
+#define CONFIG_SPL_TEXT_BASE		0xf8f81000
+#define CONFIG_SYS_MPC85XX_NO_RESETVEC
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	(832 << 10)
+#define CONFIG_SYS_NAND_U_BOOT_DST	(0x11000000)
+#define CONFIG_SYS_NAND_U_BOOT_START	(0x11000000)
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	((128 + 128) << 10)
+#elif defined(CONFIG_SPL_BUILD)
+#define CONFIG_SPL_INIT_MINIMAL
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_FLUSH_IMAGE
+#define CONFIG_SPL_TARGET		"u-boot-with-spl.bin"
+#define CONFIG_SPL_TEXT_BASE		0xff800000
+#define CONFIG_SPL_MAX_SIZE		4096
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	(128 << 10)
+#define CONFIG_SYS_NAND_U_BOOT_DST	0xf8f80000
+#define CONFIG_SYS_NAND_U_BOOT_START	0xf8f80000
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	(128 << 10)
+#endif /* not CONFIG_TPL_BUILD */
+
+#define CONFIG_SPL_PAD_TO		0x20000
+#define CONFIG_TPL_PAD_TO		0x20000
+#define CONFIG_SPL_TARGET		"u-boot-with-spl.bin"
+#define CONFIG_SYS_TEXT_BASE		0x11001000
+#define CONFIG_SYS_LDSCRIPT	"arch/powerpc/cpu/mpc85xx/u-boot-nand.lds"
 #endif
 
 #ifndef CONFIG_SYS_TEXT_BASE
@@ -64,8 +144,12 @@
 #endif
 
 #ifndef CONFIG_SYS_MONITOR_BASE
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_MONITOR_BASE	CONFIG_SPL_TEXT_BASE
+#else
 #define CONFIG_SYS_MONITOR_BASE	CONFIG_SYS_TEXT_BASE	/* start of monitor */
 #endif
+#endif
 
 /* High Level Configuration Options */
 #define CONFIG_BOOKE		1	/* BOOKE */
@@ -120,22 +204,45 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_MEMTEST_END		0x1fffffff
 #define CONFIG_PANIC_HANG	/* do not reset board on panic */
 
- /*
-  * Config the L2 Cache as L2 SRAM
-  */
+/*
+ * Config the L2 Cache as L2 SRAM
+*/
+#if defined(CONFIG_SPL_BUILD)
+#if defined(CONFIG_SDCARD) || defined(CONFIG_SPIFLASH)
 #define CONFIG_SYS_INIT_L2_ADDR		0xf8f80000
-#ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_INIT_L2_ADDR_PHYS	0xff8f80000ull
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	CONFIG_SYS_INIT_L2_ADDR
+#define CONFIG_SYS_INIT_L2_END	(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
+#define CONFIG_SPL_RELOC_TEXT_BASE	0xf8f81000
+#define CONFIG_SPL_GD_ADDR		(CONFIG_SYS_INIT_L2_ADDR + 112 * 1024)
+#define CONFIG_SPL_RELOC_STACK		(CONFIG_SYS_INIT_L2_ADDR + 116 * 1024)
+#define CONFIG_SPL_RELOC_STACK_SIZE	(32 << 10)
+#define CONFIG_SPL_RELOC_MALLOC_ADDR	(CONFIG_SYS_INIT_L2_ADDR + 148 * 1024)
+#if defined(CONFIG_P2020RDB)
+#define CONFIG_SPL_RELOC_MALLOC_SIZE	(364 << 10)
+#else
+#define CONFIG_SPL_RELOC_MALLOC_SIZE	(108 << 10)
+#endif
+#elif defined(CONFIG_NAND)
+#ifdef CONFIG_TPL_BUILD
+#define CONFIG_SYS_INIT_L2_ADDR		0xf8f80000
+#define CONFIG_SYS_INIT_L2_ADDR_PHYS	CONFIG_SYS_INIT_L2_ADDR
+#define CONFIG_SYS_INIT_L2_END	(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
+#define CONFIG_SPL_RELOC_TEXT_BASE	0xf8f81000
+#define CONFIG_SPL_RELOC_STACK		(CONFIG_SYS_INIT_L2_ADDR + 192 * 1024)
+#define CONFIG_SPL_RELOC_MALLOC_ADDR	(CONFIG_SYS_INIT_L2_ADDR + 208 * 1024)
+#define CONFIG_SPL_RELOC_MALLOC_SIZE	(48 << 10)
+#define CONFIG_SPL_GD_ADDR		(CONFIG_SYS_INIT_L2_ADDR + 176 * 1024)
 #else
+#define CONFIG_SYS_INIT_L2_ADDR		0xf8f80000
 #define CONFIG_SYS_INIT_L2_ADDR_PHYS	CONFIG_SYS_INIT_L2_ADDR
+#define CONFIG_SYS_INIT_L2_END	(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
+#define CONFIG_SPL_RELOC_TEXT_BASE	(CONFIG_SYS_INIT_L2_END - 0x2000)
+#define CONFIG_SPL_RELOC_STACK		((CONFIG_SYS_INIT_L2_END - 1) & ~0xF)
+#endif /* CONFIG_TPL_BUILD */
+#endif
 #endif
-#define CONFIG_SYS_L2_SIZE		(512 << 10)
-#define CONFIG_SYS_INIT_L2_END		(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_L2_SIZE)
-
-#define CONFIG_SYS_CCSRBAR		0xffe00000
-#define CONFIG_SYS_CCSRBAR_PHYS_LOW	CONFIG_SYS_CCSRBAR
 
-#if defined(CONFIG_NAND_SPL)
+#ifdef CONFIG_SPL_BUILD
 #define CONFIG_SYS_CCSR_DO_NOT_RELOCATE
 #endif
 
@@ -146,7 +253,15 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 
 #define CONFIG_MEM_INIT_VALUE	0xDeadBeef
 
-#define CONFIG_SYS_SDRAM_SIZE	1024 	/* DDR size on P1_P2 RDBs */
+#if defined(CONFIG_P1011RDB) || defined(CONFIG_P1020RDB)
+/*
+ * P1020 and it's derivatives support max 32bit DDR width
+ * So Reduce available DDR size
+*/
+#define CONFIG_SYS_SDRAM_SIZE	512
+#else
+#define CONFIG_SYS_SDRAM_SIZE	1024
+#endif
 #define CONFIG_SYS_DDR_SDRAM_BASE	0x00000000
 #define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
 
@@ -201,14 +316,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
 #define CONFIG_SYS_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */
 
-#if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_RAMBOOT_SDCARD) || \
-    defined(CONFIG_RAMBOOT_SPIFLASH)
-#define CONFIG_SYS_RAMBOOT
-#define CONFIG_SYS_EXTRA_ENV_RELOC
-#else
-#undef CONFIG_SYS_RAMBOOT
-#endif
-
 #define CONFIG_FLASH_CFI_DRIVER
 #define CONFIG_SYS_FLASH_CFI
 #define CONFIG_SYS_FLASH_EMPTY_INFO
@@ -241,21 +348,12 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_MONITOR_LEN		(768 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(1024 * 1024)	/* Reserved for malloc*/
 
-#ifndef CONFIG_NAND_SPL
-#define CONFIG_SYS_NAND_BASE		0xffa00000
+#define CONFIG_SYS_NAND_BASE		0xff800000
 #ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_NAND_BASE_PHYS	0xfffa00000ull
+#define CONFIG_SYS_NAND_BASE_PHYS	0xfff800000ull
 #else
 #define CONFIG_SYS_NAND_BASE_PHYS	CONFIG_SYS_NAND_BASE
 #endif
-#else
-#define CONFIG_SYS_NAND_BASE		0xfff00000
-#ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_NAND_BASE_PHYS	0xffff00000ull
-#else
-#define CONFIG_SYS_NAND_BASE_PHYS	CONFIG_SYS_NAND_BASE
-#endif
-#endif
 
 #define CONFIG_CMD_NAND
 #define CONFIG_SYS_NAND_BASE_LIST	{CONFIG_SYS_NAND_BASE}
@@ -264,15 +362,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_NAND_FSL_ELBC		1
 #define CONFIG_SYS_NAND_BLOCK_SIZE	(16 * 1024)
 
-/* NAND boot: 4K NAND loader config */
-#define CONFIG_SYS_NAND_SPL_SIZE	0x1000
-#define CONFIG_SYS_NAND_U_BOOT_SIZE	((768 << 10) - 0x2000)
-#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_INIT_L2_ADDR)
-#define CONFIG_SYS_NAND_U_BOOT_START	(CONFIG_SYS_INIT_L2_ADDR + CONFIG_SYS_NAND_SPL_SIZE)
-#define CONFIG_SYS_NAND_U_BOOT_OFFS	(0)
-#define CONFIG_SYS_NAND_U_BOOT_RELOC	(CONFIG_SYS_INIT_L2_END - 0x2000)
-#define CONFIG_SYS_NAND_U_BOOT_RELOC_SP		((CONFIG_SYS_INIT_L2_END - 1) & ~0xF)
-
 /* NAND flash config */
 #define CONFIG_SYS_NAND_BR_PRELIM (BR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
 				| (2<<BR_DECC_SHIFT)	/* Use HW ECC */ \
@@ -288,7 +377,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 				| OR_FCM_TRLX \
 				| OR_FCM_EHTR)
 
-#ifdef CONFIG_RAMBOOT_NAND
+#ifdef CONFIG_NAND
 #define CONFIG_SYS_BR0_PRELIM  CONFIG_SYS_NAND_BR_PRELIM /* NAND Base Address */
 #define CONFIG_SYS_OR0_PRELIM  CONFIG_SYS_NAND_OR_PRELIM /* NAND Options */
 #define CONFIG_SYS_BR1_PRELIM  CONFIG_FLASH_BR_PRELIM  /* NOR Base Address */
@@ -323,7 +412,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE	1
 #define CONFIG_SYS_NS16550_CLK		get_bus_freq(0)
-#ifdef CONFIG_NAND_SPL
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_INIT_MINIMAL)
 #define CONFIG_NS16550_MIN_FUNCTIONS
 #endif
 
@@ -490,33 +579,45 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 /*
  * Environment
  */
-#if defined(CONFIG_SYS_RAMBOOT)
-#if defined(CONFIG_RAMBOOT_NAND)
-	#define CONFIG_ENV_IS_IN_NAND	1
-	#define CONFIG_ENV_SIZE		CONFIG_SYS_NAND_BLOCK_SIZE
-	#define CONFIG_ENV_OFFSET	((768*1024)+CONFIG_SYS_NAND_BLOCK_SIZE)
-#elif defined(CONFIG_RAMBOOT_SDCARD)
+#ifdef CONFIG_SPIFLASH
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_SPI_BUS	0
+#define CONFIG_ENV_SPI_CS	0
+#define CONFIG_ENV_SPI_MAX_HZ	10000000
+#define CONFIG_ENV_SPI_MODE	0
+#define CONFIG_ENV_SIZE		0x2000	/* 8KB */
+#define CONFIG_ENV_OFFSET	0x100000	/* 1MB */
+#define CONFIG_ENV_SECT_SIZE	0x10000
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_INIT_L2_ADDR + (160 << 10))
+#elif defined(CONFIG_SDCARD)
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_FSL_FIXED_MMC_LOCATION
-#define CONFIG_ENV_SIZE			0x2000
-#define CONFIG_SYS_MMC_ENV_DEV		0
-#elif defined(CONFIG_RAMBOOT_SPIFLASH)
-	#define CONFIG_ENV_IS_IN_SPI_FLASH
-	#define CONFIG_ENV_SPI_BUS	0
-	#define CONFIG_ENV_SPI_CS	0
-	#define CONFIG_ENV_SPI_MAX_HZ	10000000
-	#define CONFIG_ENV_SPI_MODE	0
-	#define CONFIG_ENV_OFFSET	0x100000	/* 1MB */
-	#define CONFIG_ENV_SECT_SIZE	0x10000
-	#define CONFIG_ENV_SIZE		0x2000
-#endif
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_SYS_MMC_ENV_DEV	0
+#define CONFIG_ENV_OFFSET	(512 * 0x800)
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_INIT_L2_ADDR + (160 << 10))
+#elif defined(CONFIG_NAND)
+#ifdef CONFIG_TPL_BUILD
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_INIT_L2_ADDR + (160 << 10))
 #else
-	#define CONFIG_ENV_IS_IN_FLASH	1
-	#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
-	#define CONFIG_ENV_SIZE		0x2000
-	#define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) */
+#define CONFIG_ENV_SIZE		CONFIG_SYS_NAND_BLOCK_SIZE
+#endif
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET	(1024 * 1024)
+#define CONFIG_ENV_RANGE	(3 * CONFIG_ENV_SIZE)
+#elif defined(CONFIG_SYS_RAMBOOT)
+#define CONFIG_ENV_IS_NOWHERE	/* Store ENV in memory only */
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - 0x1000)
+#define CONFIG_ENV_SIZE		0x2000
+#else
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_ADDR	(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) */
 #endif
 
+
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
 
diff --git a/nand_spl/board/freescale/p1_p2_rdb/Makefile b/nand_spl/board/freescale/p1_p2_rdb/Makefile
deleted file mode 100644
index 9f33802..0000000
--- a/nand_spl/board/freescale/p1_p2_rdb/Makefile
+++ /dev/null
@@ -1,91 +0,0 @@
-#
-# (C) Copyright 2007
-# Stefan Roese, DENX Software Engineering, sr@denx.de.
-#
-# Copyright 2009-2011 Freescale Semiconductor, Inc.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
-PAD_TO := 0xfff01000
-
-nandobj	:= $(objtree)/nand_spl/
-
-LDSCRIPT= $(srctree)/$(CPUDIR)/u-boot-nand_spl.lds
-LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
-		$(LDFLAGS) $(LDFLAGS_FINAL)
-asflags-y += -DCONFIG_NAND_SPL
-ccflags-y += -DCONFIG_NAND_SPL
-
-SOBJS	= start.o resetvec.o
-COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
-	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
-
-OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
-__OBJS	:= $(SOBJS) $(COBJS)
-LNDIR	:= $(nandobj)board/$(BOARDDIR)
-
-targets += $(__OBJS)
-
-all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
-
-$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
-	$(OBJCOPY) $(OBJCOPYFLAGS) --pad-to=$(PAD_TO) -O binary $< $@
-
-$(nandobj)u-boot-spl.bin:	$(nandobj)u-boot-spl
-	$(OBJCOPY) $(OBJCOPYFLAGS) -O binary $< $@
-
-$(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
-	cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) $(PLATFORM_LIBS) \
-		-Map $(nandobj)u-boot-spl.map -o $@
-
-$(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
-		-ansi -D__ASSEMBLY__ -P - <$< >$@
-
-# create symbolic links for common files
-
-$(obj)/cache.c:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
-
-$(obj)/cpu_init_early.c:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
-
-$(obj)/spl_minimal.c:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
-
-$(obj)/fsl_law.c:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
-
-$(obj)/law.c:
-	@rm -f $@
-	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
-
-$(obj)/nand_boot_fsl_elbc.c:
-	@rm -f $@
-	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
-
-$(obj)/ns16550.c:
-	@rm -f $@
-	ln -sf $(srctree)/drivers/serial/ns16550.c $@
-
-$(obj)/resetvec.S:
-	@rm -f $@
-	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
-
-$(obj)/start.S:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
-
-$(obj)/tlb.c:
-	@rm -f $@
-	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/tlb.c $@
-
-$(obj)/tlb_table.c:
-	@rm -f $@
-	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c b/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c
deleted file mode 100644
index f7e8438..0000000
--- a/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright 2009 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <mpc85xx.h>
-#include <asm/io.h>
-#include <ns16550.h>
-#include <nand.h>
-#include <asm/mmu.h>
-#include <asm/immap_85xx.h>
-#include <fsl_ddr_sdram.h>
-#include <asm/fsl_law.h>
-
-#define SYSCLK_MASK     0x00200000
-#define BOARDREV_MASK   0x10100000
-#define BOARDREV_B      0x10100000
-#define BOARDREV_C      0x00100000
-
-#define SYSCLK_66       66666666
-#define SYSCLK_50       50000000
-#define SYSCLK_100      100000000
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void board_init_f(ulong bootflag)
-{
-	uint plat_ratio, bus_clk, sys_clk = 0;
-	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-	volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
-	uint val, temp, sysclk_mask;
-
-	val = pgpio->gpdat;
-	sysclk_mask = val & SYSCLK_MASK;
-	temp = val & BOARDREV_MASK;
-	if (temp == BOARDREV_C) {
-		if(sysclk_mask == 0)
-			sys_clk = SYSCLK_66;
-		else
-			sys_clk = SYSCLK_100;
-	} else if (temp == BOARDREV_B) {
-		if(sysclk_mask == 0)
-			sys_clk = SYSCLK_66;
-		else
-			sys_clk = SYSCLK_50;
-	}
-
-	plat_ratio = gur->porpllsr & 0x0000003e;
-	plat_ratio >>= 1;
-	bus_clk = plat_ratio * sys_clk;
-	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
-			bus_clk / 16 / CONFIG_BAUDRATE);
-
-	puts("\nNAND boot... ");
-
-	/* copy code to DDR and jump to it - this should not return */
-	/* NOTE - code has to be copied out of NAND buffer before
-	 * other blocks can be read.
-	 */
-	relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
-			CONFIG_SYS_NAND_U_BOOT_RELOC);
-}
-
-void board_init_r(gd_t *gd, ulong dest_addr)
-{
-	nand_boot();
-}
-
-void putc(char c)
-{
-	if (c == '\n')
-		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
-
-	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
-}
-
-void puts(const char *str)
-{
-	while (*str)
-		putc(*str++);
-}