[U-Boot] [PATCH V8 9/9] omap-common: reorganize spl.c

[Simon Schwarz <simonschwarzcor@googlemail.com>]

split-up spl.c into spl.c, spl_mmc.c and spl_nand.c. This avoids problems
with missing defines if some one board does not use mmc or nand. This includes
adding spl_ prefix to some functions which are now public. spl_image_t is now
a public type. Added some of the common functions to omap-common.h

Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
---

Didn't exist before V8
---
 arch/arm/cpu/armv7/omap-common/Makefile   |    6 +
 arch/arm/cpu/armv7/omap-common/spl.c      |  197 +++--------------------------
 arch/arm/cpu/armv7/omap-common/spl_mmc.c  |  155 +++++++++++++++++++++++
 arch/arm/cpu/armv7/omap-common/spl_nand.c |   63 +++++++++
 arch/arm/include/asm/omap_common.h        |   20 +++
 5 files changed, 264 insertions(+), 177 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/omap-common/spl_mmc.c
 create mode 100644 arch/arm/cpu/armv7/omap-common/spl_nand.c

diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index ea9f8ec..0b96b47 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -33,6 +33,12 @@ COBJS	+= gpio.o
 
 ifdef CONFIG_SPL_BUILD
 COBJS	+= spl.o
+ifdef CONFIG_SPL_NAND_SUPPORT
+COBJS	+= spl_nand.o
+endif
+ifdef CONFIG_SPL_MMC_SUPPORT
+COBJS	+= spl_mmc.o
+endif
 endif
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c
index 3dd8e0d..c76fea6 100644
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -38,14 +38,11 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+struct spl_image_info spl_image;
+
 /* Define global data structure pointer to it*/
 static gd_t gdata __attribute__ ((section(".data")));
 static bd_t bdata __attribute__ ((section(".data")));
-static const char *image_name;
-static u8 image_os;
-static u32 image_load_addr;
-static u32 image_entry_point;
-static u32 image_size;
 
 inline void hang(void)
 {
@@ -66,194 +63,40 @@ void board_init_f(ulong dummy)
 	relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
 }
 
-#ifdef CONFIG_GENERIC_MMC
-int board_mmc_init(bd_t *bis)
-{
-	switch (omap_boot_device()) {
-	case BOOT_DEVICE_MMC1:
-		omap_mmc_init(0);
-		break;
-	case BOOT_DEVICE_MMC2:
-		omap_mmc_init(1);
-		break;
-	}
-	return 0;
-}
-#endif
-
-static void parse_image_header(const struct image_header *header)
+void spl_parse_image_header(const struct image_header *header)
 {
 	u32 header_size = sizeof(struct image_header);
 
 	if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) {
-		image_size = __be32_to_cpu(header->ih_size) + header_size;
-		image_entry_point = __be32_to_cpu(header->ih_load);
+		spl_image.size = __be32_to_cpu(header->ih_size) + header_size;
+		spl_image.entry_point = __be32_to_cpu(header->ih_load);
 		/* Load including the header */
-		image_load_addr = image_entry_point - header_size;
-		image_os = header->ih_os;
-		image_name = (const char *)&header->ih_name;
+		spl_image.load_addr = spl_image.entry_point - header_size;
+		spl_image.os = header->ih_os;
+		spl_image.name = (const char *)&header->ih_name;
 		debug("spl: payload image: %s load addr: 0x%x size: %d\n",
-			image_name, image_load_addr, image_size);
+			spl_image.name, spl_image.load_addr, spl_image.size);
 	} else {
 		/* Signature not found - assume u-boot.bin */
 		printf("mkimage signature not found - ih_magic = %x\n",
 			header->ih_magic);
 		puts("Assuming u-boot.bin ..\n");
 		/* Let's assume U-Boot will not be more than 200 KB */
-		image_size = 200 * 1024;
-		image_entry_point = CONFIG_SYS_TEXT_BASE;
-		image_load_addr = CONFIG_SYS_TEXT_BASE;
-		image_os = IH_OS_U_BOOT;
-		image_name = "U-Boot";
-	}
-}
-
-static void mmc_load_image_raw(struct mmc *mmc)
-{
-	u32 image_size_sectors, err;
-	const struct image_header *header;
-
-	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
-						sizeof(struct image_header));
-
-	/* read image header to find the image size & load address */
-	err = mmc->block_dev.block_read(0,
-			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1,
-			(void *)header);
-
-	if (err <= 0)
-		goto end;
-
-	parse_image_header(header);
-
-	/* convert size to sectors - round up */
-	image_size_sectors = (image_size + MMCSD_SECTOR_SIZE - 1) /
-				MMCSD_SECTOR_SIZE;
-
-	/* Read the header too to avoid extra memcpy */
-	err = mmc->block_dev.block_read(0,
-			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
-			image_size_sectors, (void *)image_load_addr);
-
-end:
-	if (err <= 0) {
-		printf("spl: mmc blk read err - %d\n", err);
-		hang();
+		spl_image.size = 200 * 1024;
+		spl_image.entry_point = CONFIG_SYS_TEXT_BASE;
+		spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
+		spl_image.os = IH_OS_U_BOOT;
+		spl_image.name = "U-Boot";
 	}
 }
 
-static void mmc_load_image_fat(struct mmc *mmc)
-{
-	s32 err;
-	struct image_header *header;
-
-	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
-						sizeof(struct image_header));
-
-	err = fat_register_device(&mmc->block_dev,
-				CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
-	if (err) {
-		printf("spl: fat register err - %d\n", err);
-		hang();
-	}
-
-	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
-				(u8 *)header, sizeof(struct image_header));
-	if (err <= 0)
-		goto end;
-
-	parse_image_header(header);
-
-	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
-				(u8 *)image_load_addr, 0);
-
-end:
-	if (err <= 0) {
-		printf("spl: error reading image %s, err - %d\n",
-			CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
-		hang();
-	}
-}
-static void mmc_load_image(void) __attribute__((unused));
-static void mmc_load_image(void)
-{
-	struct mmc *mmc;
-	int err;
-	u32 boot_mode;
-
-	mmc_initialize(gd->bd);
-	/* We register only one device. So, the dev id is always 0 */
-	mmc = find_mmc_device(0);
-	if (!mmc) {
-		puts("spl: mmc device not found!!\n");
-		hang();
-	}
-
-	err = mmc_init(mmc);
-	if (err) {
-		printf("spl: mmc init failed: err - %d\n", err);
-		hang();
-	}
-/* For OMAP3 there is no automatic boot mode detection */
-#ifdef CONFIG_OMAP34XX
-	boot_mode = CONFIG_SYS_MMC_SD_BOOTMODE;
-#else
-	boot_mode = omap_boot_mode();
-#endif
-	if (boot_mode == MMCSD_MODE_RAW) {
-		debug("boot mode - RAW\n");
-		mmc_load_image_raw(mmc);
-	} else if (boot_mode == MMCSD_MODE_FAT) {
-		debug("boot mode - FAT\n");
-		mmc_load_image_fat(mmc);
-	} else {
-		puts("spl: wrong MMC boot mode\n");
-		hang();
-	}
-}
-
-#ifdef CONFIG_SPL_NAND_SUPPORT
-static void nand_load_image(void) __attribute__ ((unused));
-static void nand_load_image(void)
-{
-	struct image_header *header;
-
-	gpmc_init();
-	nand_init();
-
-	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
-	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
-
-#ifdef CONFIG_NAND_ENV_DST
-	nand_spl_load_image(CONFIG_ENV_OFFSET,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET, image_size,
-		(void *)image_load_addr);
-#ifdef CONFIG_ENV_OFFSET_REDUND
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	parse_image_header(header);
-	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, image_size,
-		(void *)image_load_addr);
-#endif
-#endif
-	/* Load u-boot */
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
-	parse_image_header(header);
-	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
-		image_size, (void *)image_load_addr);
-	nand_deselect();
-}
-#endif /* CONFIG_SPL_NAND_SUPPORT */
-void jump_to_image_no_args(void)
+static void jump_to_image_no_args(void)
 {
 	typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn));
 	image_entry_noargs_t image_entry =
-			(image_entry_noargs_t) image_entry_point;
+			(image_entry_noargs_t) spl_image.entry_point;
 
-	debug("image entry point: 0x%X\n", image_entry_point);
+	debug("image entry point: 0x%X\n", spl_image.entry_point);
 	image_entry();
 }
 
@@ -272,12 +115,12 @@ void board_init_r(gd_t *id, ulong dummy)
 #ifdef CONFIG_SPL_MMC_SUPPORT
 	case BOOT_DEVICE_MMC1:
 	case BOOT_DEVICE_MMC2:
-		mmc_load_image();
+		spl_mmc_load_image();
 		break;
 #endif
 #ifdef CONFIG_SPL_NAND_SUPPORT
 	case BOOT_DEVICE_NAND:
-		nand_load_image();
+		spl_nand_load_image();
 		break;
 #endif
 	default:
@@ -286,7 +129,7 @@ void board_init_r(gd_t *id, ulong dummy)
 		break;
 	}
 
-	switch (image_os) {
+	switch (spl_image.os) {
 	case IH_OS_U_BOOT:
 		debug("Jumping to U-Boot\n");
 		jump_to_image_no_args();
diff --git a/arch/arm/cpu/armv7/omap-common/spl_mmc.c b/arch/arm/cpu/armv7/omap-common/spl_mmc.c
new file mode 100644
index 0000000..d4f78c7
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/spl_mmc.c
@@ -0,0 +1,155 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@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
+ */
+#include <common.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+#include <asm/arch/sys_proto.h>
+#include <mmc.h>
+#include <fat.h>
+#include <timestamp_autogenerated.h>
+#include <version_autogenerated.h>
+#include <asm/omap_common.h>
+#include <asm/arch/mmc_host_def.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+	switch (omap_boot_device()) {
+	case BOOT_DEVICE_MMC1:
+		omap_mmc_init(0);
+		break;
+	case BOOT_DEVICE_MMC2:
+		omap_mmc_init(1);
+		break;
+	}
+	return 0;
+}
+#endif
+
+static void mmc_load_image_raw(struct mmc *mmc)
+{
+	u32 image_size_sectors, err;
+	const struct image_header *header;
+
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+						sizeof(struct image_header));
+
+	/* read image header to find the image size & load address */
+	err = mmc->block_dev.block_read(0,
+			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1,
+			(void *)header);
+
+	if (err <= 0)
+		goto end;
+
+	spl_parse_image_header(header);
+
+	/* convert size to sectors - round up */
+	image_size_sectors = (spl_image.size + MMCSD_SECTOR_SIZE - 1) /
+				MMCSD_SECTOR_SIZE;
+
+	/* Read the header too to avoid extra memcpy */
+	err = mmc->block_dev.block_read(0,
+			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
+			image_size_sectors, (void *)spl_image.load_addr);
+
+end:
+	if (err <= 0) {
+		printf("spl: mmc blk read err - %d\n", err);
+		hang();
+	}
+}
+
+static void mmc_load_image_fat(struct mmc *mmc)
+{
+	s32 err;
+	struct image_header *header;
+
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+						sizeof(struct image_header));
+
+	err = fat_register_device(&mmc->block_dev,
+				CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
+	if (err) {
+		printf("spl: fat register err - %d\n", err);
+		hang();
+	}
+
+	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+				(u8 *)header, sizeof(struct image_header));
+	if (err <= 0)
+		goto end;
+
+	spl_parse_image_header(header);
+
+	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+				(u8 *)spl_image.load_addr, 0);
+
+end:
+	if (err <= 0) {
+		printf("spl: error reading image %s, err - %d\n",
+			CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
+		hang();
+	}
+}
+
+void spl_mmc_load_image(void)
+{
+	struct mmc *mmc;
+	int err;
+	u32 boot_mode;
+
+	mmc_initialize(gd->bd);
+	/* We register only one device. So, the dev id is always 0 */
+	mmc = find_mmc_device(0);
+	if (!mmc) {
+		puts("spl: mmc device not found!!\n");
+		hang();
+	}
+
+	err = mmc_init(mmc);
+	if (err) {
+		printf("spl: mmc init failed: err - %d\n", err);
+		hang();
+	}
+/* For OMAP3 there is no automatic boot mode detection */
+#ifdef CONFIG_OMAP34XX
+	boot_mode = CONFIG_SYS_MMC_SD_BOOTMODE;
+#else
+	boot_mode = omap_boot_mode();
+#endif
+	if (boot_mode == MMCSD_MODE_RAW) {
+		debug("boot mode - RAW\n");
+		mmc_load_image_raw(mmc);
+	} else if (boot_mode == MMCSD_MODE_FAT) {
+		debug("boot mode - FAT\n");
+		mmc_load_image_fat(mmc);
+	} else {
+		puts("spl: wrong MMC boot mode\n");
+		hang();
+	}
+}
diff --git a/arch/arm/cpu/armv7/omap-common/spl_nand.c b/arch/arm/cpu/armv7/omap-common/spl_nand.c
new file mode 100644
index 0000000..70eb109
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/spl_nand.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ *
+ * 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
+ */
+#include <common.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+#include <asm/arch/sys_proto.h>
+#include <nand.h>
+#include <timestamp_autogenerated.h>
+#include <version_autogenerated.h>
+#include <asm/omap_common.h>
+
+
+void spl_nand_load_image(void)
+{
+	struct image_header *header;
+	gpmc_init();
+	nand_init();
+
+	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+
+#ifdef CONFIG_NAND_ENV_DST
+	nand_spl_load_image(CONFIG_ENV_OFFSET,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	spl_parse_image_header(header);
+	nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
+		(void *)image_load_addr);
+#ifdef CONFIG_ENV_OFFSET_REDUND
+	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	spl_parse_image_header(header);
+	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
+		(void *)image_load_addr);
+#endif
+#endif
+	/* Load u-boot */
+	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	spl_parse_image_header(header);
+	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+		spl_image.size, (void *)spl_image.load_addr);
+	nand_deselect();
+}
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 6469047..978e096 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -61,7 +61,27 @@ void preloader_console_init(void);
 #define MMCSD_MODE_FAT		2
 #define NAND_MODE_HW_ECC	3
 
+struct spl_image_info {
+	const char *name;
+	u8 os;
+	u32 load_addr;
+	u32 entry_point;
+	u32 size;
+};
+
+extern struct spl_image_info spl_image;
+
 u32 omap_boot_device(void);
 u32 omap_boot_mode(void);
 
+
+/* SPL common function s*/
+void spl_parse_image_header(const struct image_header *header);
+
+/* NAND SPL functions */
+void spl_nand_load_image(void);
+
+/* MMC SPL functions */
+void spl_mmc_load_image(void);
+
 #endif /* _OMAP_COMMON_H_ */
-- 
1.7.4.1