[U-Boot] [PATCH V2 7/8] arm/davinci: spl - boot device selection
Mikhail Kshevetskiy
mikhail.kshevetskiy at gmail.com
Mon Jul 9 05:31:32 CEST 2012
This patch allow us to have a universal spl that detects a boot
device and select a corresponding boot algorithm for main u-boot part
(SOC_DA8XX only)
This patch create copy copy of drivers/mtd/nand/nand_spl_load.c and
drivers/mtd/spi/spi_spl_load.c for the following reasons:
* avoid jump to main u-boot code just after its loading (required
for the next patch: spl - add compressed u-boot image support)
* makes a structure similar to omap3 sources
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy at gmail.com>
---
Change for v2:
* fix checkpatch warnings
* defines for constants
* use readl() to read a BOOTCFG_REG
* improve patch description
---
arch/arm/cpu/arm926ejs/davinci/Makefile | 5 ++
arch/arm/cpu/arm926ejs/davinci/spl.c | 91 +++++++++++++++++++---
arch/arm/cpu/arm926ejs/davinci/spl_mmc.c | 39 ++++++++++
arch/arm/cpu/arm926ejs/davinci/spl_nand.c | 11 +++
arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c | 25 ++++++
arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c | 42 ++++++++++
arch/arm/include/asm/arch-davinci/davinci_boot.h | 50 ++++++++++++
include/configs/cam_enc_4xx.h | 12 +--
include/configs/da850evm.h | 19 +++--
include/configs/hawkboard.h | 11 +--
10 files changed, 275 insertions(+), 30 deletions(-)
create mode 100644 arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
create mode 100644 arch/arm/cpu/arm926ejs/davinci/spl_nand.c
create mode 100644 arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
create mode 100644 arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
create mode 100644 arch/arm/include/asm/arch-davinci/davinci_boot.h
diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile
index da7efac..12bd37a 100644
--- a/arch/arm/cpu/arm926ejs/davinci/Makefile
+++ b/arch/arm/cpu/arm926ejs/davinci/Makefile
@@ -40,6 +40,11 @@ ifdef CONFIG_SPL_BUILD
COBJS-y += spl.o
COBJS-$(CONFIG_SOC_DM365) += dm365_lowlevel.o
COBJS-$(CONFIG_SOC_DA8XX) += da850_lowlevel.o
+
+COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
+COBJS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += spl_spi_flash.o
+COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
+COBJS-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
endif
SOBJS = reset.o
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c
index 74632e5..50b4bbc 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl.c
@@ -25,9 +25,11 @@
#include <asm/utils.h>
#include <nand.h>
#include <asm/arch/dm365_lowlevel.h>
+#include <asm/arch/davinci_boot.h>
#include <ns16550.h>
#include <malloc.h>
#include <spi_flash.h>
+#include <linux/compiler.h>
#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
@@ -72,25 +74,92 @@ void board_init_f(ulong dummy)
relocate_code(CONFIG_SPL_STACK, NULL, CONFIG_SPL_TEXT_BASE);
}
+u32 davinci_boot_device(void){
+#ifdef CONFIG_SOC_DA8XX
+ u32 bootmode = readl(BOOTCFG_REG) & BOOTCFG_REG_DEVICE_MASK;
+ switch (bootmode) {
+ case BOOTCFG_DEVICE_NAND8:
+ case BOOTCFG_DEVICE_NAND16:
+ return BOOT_DEVICE_TYPE_NAND;
+ case BOOTCFG_DEVICE_SPI0_FLASH:
+ case BOOTCFG_DEVICE_SPI1_FLASH:
+ return BOOT_DEVICE_TYPE_SPI_FLASH;
+ case BOOTCFG_DEVICE_UART0:
+ case BOOTCFG_DEVICE_UART1:
+ case BOOTCFG_DEVICE_UART2:
+ return BOOT_DEVICE_TYPE_UART;
+ case BOOTCFG_DEVICE_MMC_OR_SD0:
+ return BOOT_DEVICE_TYPE_MMC;
+ default:
+ return BOOT_DEVICE_TYPE_NONE;
+ }
+#else
+#ifdef
+#endif CONFIG_SPL_NAND_SUPPORT
+ return BOOT_DEVICE_TYPE_NAND;
+#endif
+#ifdef BOOT_DEVICE_SPI_FLASH
+ return BOOT_DEVICE_TYPE_SPI_FLASH;
+#endif
+#ifdef CONFIG_SPL_YMODEM_SUPPORT
+ return BOOT_DEVICE_TYPE_UART;
+#endif
+#ifdef CONFIG_SPL_MMC_SUPPORT
+ return BOOT_DEVICE_TYPE_MMC;
+#endif
+}
+
void board_init_r(gd_t *id, ulong dummy)
{
-#ifdef CONFIG_SPL_NAND_LOAD
- nand_init();
- puts("Nand boot...\n");
- nand_boot();
-#endif
-#ifdef CONFIG_SPL_SPI_LOAD
- mem_malloc_init(CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN,
- CONFIG_SYS_MALLOC_LEN);
+ u32 boot_device;
+ void (*uboot)(void) __noreturn;
+
+ mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START,
+ CONFIG_SYS_SPL_MALLOC_SIZE);
gd = &gdata;
gd->bd = &bdata;
gd->flags |= GD_FLG_RELOC;
+#ifdef CONFIG_SPL_SERIAL_SUPPORT
gd->baudrate = CONFIG_BAUDRATE;
- serial_init(); /* serial communications setup */
+ serial_init();
gd->have_console = 1;
+#endif
- puts("SPI boot...\n");
- spi_boot();
+ boot_device = davinci_boot_device();
+ debug("boot device - %d\n", boot_device);
+ switch (boot_device) {
+#ifdef CONFIG_SPL_NAND_SUPPORT
+ case BOOT_DEVICE_TYPE_NAND:
+ puts("Booting from nand flash ...\n");
+ spl_nand_load_image();
+ break;
+#endif
+#ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
+ case BOOT_DEVICE_TYPE_SPI_FLASH:
+ puts("Booting from spi flash ...\n");
+ spl_spi_flash_load_image();
+ break;
#endif
+#ifdef CONFIG_SPL_YMODEM_SUPPORT
+ case BOOT_DEVICE_TYPE_UART:
+ puts("Booting from uart ...\n");
+ spl_ymodem_load_image();
+ break;
+#endif
+#ifdef CONFIG_SPL_MMC_SUPPORT
+ case BOOT_DEVICE_TYPE_MMC:
+ puts("Booting from mmc/sd card...\n");
+ spl_mmc_load_image();
+ break;
+#endif
+ default:
+ printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
+ hang();
+ break;
+ }
+
+ puts("Jump to U-Boot image...\n");
+ uboot = (void *) CONFIG_SYS_TEXT_BASE;
+ (*uboot)();
}
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c b/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
new file mode 100644
index 0000000..1a551e9
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_mmc.c
@@ -0,0 +1,39 @@
+#include <common.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+#include <mmc.h>
+#include <asm/arch/sdmmc_defs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void spl_mmc_load_image(void)
+{
+ int ret;
+ struct mmc *mmc;
+
+ 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();
+ }
+
+ ret = mmc_init(mmc);
+ if (ret) {
+ printf("spl: mmc init failed: err - %d\n", ret);
+ hang();
+ }
+
+ ret = mmc->block_dev.block_read(0,
+ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
+ CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS,
+ (void *) CONFIG_SYS_TEXT_BASE);
+ if (ret < 0) {
+ printf("spl: mmc blk read err - %d\n", ret);
+ hang();
+ }
+
+ debug("Loaded %d sectors from SD/MMC card\n",
+ CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS);
+}
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_nand.c b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
new file mode 100644
index 0000000..bad1e8f
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_nand.c
@@ -0,0 +1,11 @@
+#include <common.h>
+#include <nand.h>
+
+void spl_nand_load_image(void)
+{
+ nand_init();
+ nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+ CONFIG_SYS_NAND_U_BOOT_SIZE,
+ (void *) CONFIG_SYS_TEXT_BASE);
+ debug("Loaded %d bytes from NAND flash\n", CONFIG_SYS_NAND_U_BOOT_SIZE);
+}
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c b/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
new file mode 100644
index 0000000..d6fadcd
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_spi_flash.c
@@ -0,0 +1,25 @@
+#include <common.h>
+#include <spi_flash.h>
+
+void spl_spi_flash_load_image(void)
+{
+ int ret;
+ struct spi_flash *flash;
+
+ flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS,
+ CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3);
+ if (!flash) {
+ puts("spl: spi flash probe failed.\n");
+ hang();
+ }
+
+ ret = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
+ CONFIG_SYS_SPI_U_BOOT_SIZE,
+ (void *) CONFIG_SYS_TEXT_BASE);
+ if (ret < 0) {
+ printf("spl: spi flash read err - %d\n", ret);
+ hang();
+ }
+
+ debug("Loaded %d bytes from SPI flash\n", CONFIG_SYS_SPI_U_BOOT_SIZE);
+}
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c b/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
new file mode 100644
index 0000000..b8c4db1
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/davinci/spl_ymodem.c
@@ -0,0 +1,42 @@
+#include <common.h>
+#include <xyzModem.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+
+#define BUF_SIZE 1024
+
+static int getcymodem(void)
+{
+ if (tstc())
+ return getc();
+ return -1;
+}
+
+void spl_ymodem_load_image(void)
+{
+ int size;
+ int err;
+ int res;
+ connection_info_t info;
+ ulong store_addr = ~0;
+
+ size = 0;
+ info.mode = xyzModem_ymodem;
+ res = xyzModem_stream_open(&info, &err);
+ if (!res) {
+ store_addr = CONFIG_SYS_TEXT_BASE;
+ while ((res = xyzModem_stream_read(
+ (char *)store_addr, 1024, &err)) > 0) {
+ store_addr += res;
+ size += res;
+ }
+ } else {
+ printf("spl: ymodem err - %s\n", xyzModem_error(err));
+ hang();
+ }
+
+ xyzModem_stream_close(&err);
+ xyzModem_stream_terminate(false, &getcymodem);
+
+ debug("Loaded %d bytes from UART\n", size);
+}
diff --git a/arch/arm/include/asm/arch-davinci/davinci_boot.h b/arch/arm/include/asm/arch-davinci/davinci_boot.h
new file mode 100644
index 0000000..57afa24
--- /dev/null
+++ b/arch/arm/include/asm/arch-davinci/davinci_boot.h
@@ -0,0 +1,50 @@
+#ifndef _DAVINCI_BOOT_H_
+#define _DAVINCI_BOOT_H_
+
+#include <asm/arch/hardware.h>
+
+#define BOOTCFG_REG (DAVINCI_BOOTCFG_BASE + 0x20)
+#define BOOTCFG_REG_DEVICE_MASK 0x1F
+
+#define BOOTCFG_DEVICE_NOR 0x02
+#define BOOTCFG_DEVICE_NAND8 0x0E
+#define BOOTCFG_DEVICE_NAND16 0x10
+#define BOOTCFG_DEVICE_MMC_OR_SD0 0x1C
+#define BOOTCFG_DEVICE_I2C0_EEPROM 0x00
+#define BOOTCFG_DEVICE_I2C1_EEPROM 0x06
+#define BOOTCFG_DEVICE_I2C0_SLAVE 0x01
+#define BOOTCFG_DEVICE_I2C1_SLAVE 0x07
+#define BOOTCFG_DEVICE_SPI0_EEPROM 0x08
+#define BOOTCFG_DEVICE_SPI1_EEPROM 0x09
+#define BOOTCFG_DEVICE_SPI0_FLASH 0x0A
+#define BOOTCFG_DEVICE_SPI1_FLASH 0x0C
+#define BOOTCFG_DEVICE_SPI0_SLAVE 0x12
+#define BOOTCFG_DEVICE_SPI1_SLAVE 0x13
+#define BOOTCFG_DEVICE_UART0 0x16
+#define BOOTCFG_DEVICE_UART1 0x17
+#define BOOTCFG_DEVICE_UART2 0x14
+#define BOOTCFG_DEVICE_HPI 0x04
+#define BOOTCFG_DEVICE_EMULATION_DEBUG 0x1E
+
+/* Boot device */
+#define BOOT_DEVICE_TYPE_NONE 0
+#define BOOT_DEVICE_TYPE_NAND 1
+#define BOOT_DEVICE_TYPE_SPI_FLASH 2
+#define BOOT_DEVICE_TYPE_UART 3
+#define BOOT_DEVICE_TYPE_MMC 4
+
+u32 davinci_boot_device(void);
+
+/* NAND SPL functions */
+void spl_nand_load_image(void);
+
+/* SPI FLASH SPL functions */
+void spl_spi_flash_load_image(void);
+
+/* YMODEM SPL functions */
+void spl_ymodem_load_image(void);
+
+/* MMC SPL functions */
+void spl_mmc_load_image(void);
+
+#endif /* _DAVINCI_BOOT_H_ */
diff --git a/include/configs/cam_enc_4xx.h b/include/configs/cam_enc_4xx.h
index 771ac9c..590f3f8 100644
--- a/include/configs/cam_enc_4xx.h
+++ b/include/configs/cam_enc_4xx.h
@@ -217,18 +217,18 @@
/* Defines for SPL */
#define CONFIG_SPL
+#define CONFIG_SPL_LDSCRIPT "$(BOARDDIR)/u-boot-spl.lds"
+#define CONFIG_SPL_STACK (0x00010000 + 0x7f00)
+#define CONFIG_SPL_TEXT_BASE 0x00000020 /*CONFIG_SYS_SRAM_START*/
+#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN)
+#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SPL_MAX_SIZE 12320
#define CONFIG_SPL_LIBGENERIC_SUPPORT
#define CONFIG_SPL_NAND_SUPPORT
#define CONFIG_SPL_NAND_SIMPLE
-#define CONFIG_SPL_NAND_LOAD
#define CONFIG_SYS_NAND_HW_ECC_OOBFIRST
#define CONFIG_SPL_SERIAL_SUPPORT
#define CONFIG_SPL_POST_MEM_SUPPORT
-#define CONFIG_SPL_LDSCRIPT "$(BOARDDIR)/u-boot-spl.lds"
-#define CONFIG_SPL_STACK (0x00010000 + 0x7f00)
-
-#define CONFIG_SPL_TEXT_BASE 0x00000020 /*CONFIG_SYS_SRAM_START*/
-#define CONFIG_SPL_MAX_SIZE 12320
#ifndef CONFIG_SPL_BUILD
#define CONFIG_SYS_TEXT_BASE 0x81080000
diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h
index e6adb1f..7a3ec4c 100644
--- a/include/configs/da850evm.h
+++ b/include/configs/da850evm.h
@@ -313,20 +313,23 @@
/* defines for SPL */
#define CONFIG_SPL
+#define CONFIG_SPL_LDSCRIPT "board/$(BOARDDIR)/u-boot-spl-da850evm.lds"
+#define CONFIG_SPL_STACK 0x8001ff00
+#define CONFIG_SPL_TEXT_BASE 0x80000000
+#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN)
+#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SPL_MAX_SIZE 32768
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
#define CONFIG_SPL_SPI_SUPPORT
#define CONFIG_SPL_SPI_FLASH_SUPPORT
-#define CONFIG_SPL_SPI_LOAD
#define CONFIG_SPL_SPI_BUS 0
#define CONFIG_SPL_SPI_CS 0
-#define CONFIG_SPL_SERIAL_SUPPORT
-#define CONFIG_SPL_LIBCOMMON_SUPPORT
-#define CONFIG_SPL_LIBGENERIC_SUPPORT
-#define CONFIG_SPL_LDSCRIPT "board/$(BOARDDIR)/u-boot-spl-da850evm.lds"
-#define CONFIG_SPL_STACK 0x8001ff00
-#define CONFIG_SPL_TEXT_BASE 0x80000000
-#define CONFIG_SPL_MAX_SIZE 32768
#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x8000
#define CONFIG_SYS_SPI_U_BOOT_SIZE 0x30000
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_YMODEM_SUPPORT
+
/* additions for new relocation code, must added to all boards */
#define CONFIG_SYS_SDRAM_BASE 0xc0000000
diff --git a/include/configs/hawkboard.h b/include/configs/hawkboard.h
index c6e8859..133fdfb 100644
--- a/include/configs/hawkboard.h
+++ b/include/configs/hawkboard.h
@@ -59,14 +59,15 @@
/* Spl */
#define CONFIG_SPL
-#define CONFIG_SPL_NAND_SUPPORT
-#define CONFIG_SPL_NAND_SIMPLE
-#define CONFIG_SPL_NAND_LOAD
-#define CONFIG_SPL_LIBGENERIC_SUPPORT /* for udelay and __div64_32 for NAND */
-#define CONFIG_SPL_SERIAL_SUPPORT
#define CONFIG_SPL_LDSCRIPT "board/$(BOARDDIR)/u-boot-spl-hawk.lds"
#define CONFIG_SPL_TEXT_BASE 0xc1080000
#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR
+#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN)
+#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
+#define CONFIG_SPL_LIBGENERIC_SUPPORT /* for udelay and __div64_32 for NAND */
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_SIMPLE
+#define CONFIG_SPL_SERIAL_SUPPORT
/*
* Memory Info
--
1.7.10.4
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