powerpc/c29xpcie: 8k page size NAND boot support base on TPL/SPL

Using the TPL/SPL method to booting from 8k page NAND flash.
	- Add 256kB size SRAM tlb for second step booting;
	- Add spl.c for TPL image boot;
	- Add spl_minimal.c for minimal SPL image;
	- Add C29XPCIE_NAND configure;
	- Modify C29XPCIE.h for nand config and enviroment;

Signed-off-by: Po Liu <Po.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

5 files changed, 168 insertions, 2 deletions

diff --git a/board/freescale/c29xpcie/Makefile b/board/freescale/c29xpcie/Makefile
index 626d48a..818484a 100644
--- a/board/freescale/c29xpcie/Makefile
+++ b/board/freescale/c29xpcie/Makefile
@@ -3,8 +3,23 @@
 #
 # 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
+endif
+
 obj-y	+= c29xpcie.o
 obj-y	+= cpld.o
 obj-y	+= ddr.o
 obj-y	+= law.o
 obj-y	+= tlb.o
+endif
diff --git a/board/freescale/c29xpcie/cpld.c b/board/freescale/c29xpcie/cpld.c
index 5cbccff..37722da 100644
--- a/board/freescale/c29xpcie/cpld.c
+++ b/board/freescale/c29xpcie/cpld.c
@@ -89,6 +89,7 @@ static void cpld_dump_regs(void)
 }
 #endif
 
+#ifndef CONFIG_SPL_BUILD
 int cpld_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rc = 0;
@@ -129,3 +130,4 @@ U_BOOT_CMD(
 	"cpld_cmd dump - display the CPLD registers\n"
 #endif
 	);
+#endif
diff --git a/board/freescale/c29xpcie/spl.c b/board/freescale/c29xpcie/spl.c
new file mode 100644
index 0000000..3cfdb72
--- /dev/null
+++ b/board/freescale/c29xpcie/spl.c
@@ -0,0 +1,77 @@
+/* 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>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ulong get_effective_memsize(void)
+{
+	return CONFIG_SYS_L2_SIZE;
+}
+
+void board_init_f(ulong bootflag)
+{
+	u32 plat_ratio;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	console_init_f();
+
+	/* 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);
+
+	/* 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);
+
+	/* relocate environment function pointers etc. */
+	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			    (uchar *)CONFIG_ENV_ADDR);
+	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
+	gd->env_valid = 1;
+
+	i2c_init_all();
+
+	gd->ram_size = initdram(0);
+
+#ifdef CONFIG_SPL_NAND_BOOT
+	puts("TPL\n");
+#else
+	puts("SPL\n");
+#endif
+
+	nand_boot();
+}
diff --git a/board/freescale/c29xpcie/spl_minimal.c b/board/freescale/c29xpcie/spl_minimal.c
new file mode 100644
index 0000000..8f96b67
--- /dev/null
+++ b/board/freescale/c29xpcie/spl_minimal.c
@@ -0,0 +1,63 @@
+/* Copyright 2013 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 <asm/fsl_law.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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...\n");
+
+	/* 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("SPL\n");
+	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/c29xpcie/tlb.c b/board/freescale/c29xpcie/tlb.c
index 84844ee..c5abed0 100644
--- a/board/freescale/c29xpcie/tlb.c
+++ b/board/freescale/c29xpcie/tlb.c
@@ -30,6 +30,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 0, BOOKE_PAGESZ_1M, 1),
 
+#ifndef CONFIG_SPL_BUILD
 	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
 			MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
 			0, 1, BOOKE_PAGESZ_64M, 1),
@@ -43,13 +44,14 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 3, BOOKE_PAGESZ_256K, 1),
 #endif
+#endif
 
 	SET_TLB_ENTRY(1, CONFIG_SYS_CPLD_BASE, CONFIG_SYS_CPLD_BASE_PHYS,
 			MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 4, BOOKE_PAGESZ_64K, 1),
 
 	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
-			MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 5, BOOKE_PAGESZ_64K, 1),
 
 	SET_TLB_ENTRY(1, CONFIG_SYS_PLATFORM_SRAM_BASE,
@@ -61,7 +63,8 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SX|MAS3_SW|MAS3_SR, 0,
 			0, 7, BOOKE_PAGESZ_256K, 1),
 
-#ifdef CONFIG_SYS_RAMBOOT
+#if defined(CONFIG_SYS_RAMBOOT) || \
+		(defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD))
 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE,
 			CONFIG_SYS_DDR_SDRAM_BASE,
 			MAS3_SX|MAS3_SW|MAS3_SR, 0,
@@ -71,6 +74,12 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SX|MAS3_SW|MAS3_SR, 0,
 			0, 9, BOOKE_PAGESZ_256M, 1),
 #endif
+
+#ifdef CONFIG_SYS_INIT_L2_ADDR
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
+		      0, 12, BOOKE_PAGESZ_256K, 1)
+#endif
 };
 
 int num_tlb_entries = ARRAY_SIZE(tlb_table);