[U-Boot] [RFC PATCH v2 09/12] arm, davinci: Add SPL support for DA850 SoCs

[Christian Riesch]

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

Signed-off-by: Christian Riesch <christian.rie...@omicron.at>
Cc: Heiko Schocher <h...@denx.de>
Cc: Sandeep Paulraj <s-paul...@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 2105ec5..99df0df 100644
--- a/arch/arm/cpu/arm926ejs/davinci/Makefile
+++ b/arch/arm/cpu/arm926ejs/davinci/Makefile
@@ -37,7 +37,8 @@ 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

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