[U-Boot] [PATCH v4 3/6] arm, davinci: Add SPL support for DA850 SoCs

Christian Riesch
2011-12-02T16:12:07Z

This code adds an SPL for booting from SPI flash on DA850 SoCs.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Heiko Schocher <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Tom Rini <trini@ti.com>
---
arch/arm/cpu/arm926ejs/davinci/Makefile | 3 +-
arch/arm/cpu/arm926ejs/davinci/spl.c | 34 ++++++++++++++++++++++++++++++-
2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile
index 5ae89df..da7efac 100644
--- a/arch/arm/cpu/arm926ejs/davinci/Makefile
+++ b/arch/arm/cpu/arm926ejs/davinci/Makefile
@@ -38,7 +38,8 @@ COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o et1011c.o ksz8873.o

ifdef CONFIG_SPL_BUILD
COBJS-y += spl.o
-COBJS-y += dm365_lowlevel.o
+COBJS-$(CONFIG_SOC_DM365) += dm365_lowlevel.o
+COBJS-$(CONFIG_SOC_DA8XX) += da850_lowlevel.o
endif

SOBJS = reset.o
diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c
index d9b9398..20f798e 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl.c
@@ -26,6 +26,16 @@
#include <nand.h>
#include <asm/arch/dm365_lowlevel.h>
#include <ns16550.h>
+#include <malloc.h>
+#include <spi_flash.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Define global data structure pointer to it*/
+static gd_t gdata __attribute__ ((section(".data")));
+static bd_t bdata __attribute__ ((section(".data")));
+
+#ifndef CONFIG_SPL_LIBCOMMON_SUPPORT

void puts(const char *str)
{
@@ -41,6 +51,8 @@ void putc(char c)
NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
}

+#endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
+
inline void hang(void)
{
puts("### ERROR ### Please RESET the board ###\n");
@@ -50,14 +62,34 @@ inline void hang(void)

void board_init_f(ulong dummy)
{
+#ifdef CONFIG_SOC_DM365
dm36x_lowlevel_init(0);
+#endif
+#ifdef CONFIG_SOC_DA8XX
+ arch_cpu_init();
+#endif
relocate_code(CONFIG_SPL_STACK, NULL, CONFIG_SPL_TEXT_BASE);
}

void board_init_r(gd_t *id, ulong dummy)
{
-
+#ifdef CONFIG_SOC_DM365
nand_init();
puts("Nand boot...\n");
nand_boot();
+#endif
+#ifdef CONFIG_SOC_DA8XX
+ mem_malloc_init(CONFIG_SYS_TEXT_BASE - CONFIG_SYS_MALLOC_LEN,
+ CONFIG_SYS_MALLOC_LEN);
+
+ gd = &gdata;
+ gd->bd = &bdata;
+ gd->flags |= GD_FLG_RELOC;
+ gd->baudrate = CONFIG_BAUDRATE;
+ serial_init(); /* serial communications setup */
+ gd->have_console = 1;
+
+ puts("SPI boot...\n");
+ spi_boot();
+#endif
}
--
1.7.0.4