am33xx: Correct NON_SECURE_SRAM_START/END

Prior to Sricharan's cleanup of the boot parameter saving code, we
did not make use of NON_SECURE_SRAM_START on am33xx, so it wasn't a
problem that the address was pointing to the middle of our running SPL.
Correct to point to the base location of the download image area.
Increase CONFIG_SPL_TEXT_BASE to account for this scratch area being
used.  As part of correcting these tests, make use of the fact that
we've always been placing our stack outside of the download image area
(which is fine, once the downloaded image is run, ROM is gone) so
correct the max size test to be the ROM defined top of the download area
to where we link/load at.

Signed-off-by: Tom Rini <trini@ti.com>

---
Changes in v2:
- Fix typo noted by Peter Korsgaard

arch/arm/include/asm/arch-am33xx/omap.h

@@ -29,8 +29,8 @@
  * at 0x40304000(EMU base) so that our code works for both EMU and GP
  */
 #ifdef CONFIG_AM33XX
-#define NON_SECURE_SRAM_START	0x40304000
-#define NON_SECURE_SRAM_END	0x4030E000
+#define NON_SECURE_SRAM_START	0x402F0400
+#define NON_SECURE_SRAM_END	0x40310000
 #elif defined(CONFIG_TI814X)
 #define NON_SECURE_SRAM_START	0x40300000
 #define NON_SECURE_SRAM_END	0x40320000

include/configs/am335x_evm.h

@@ -305,8 +305,14 @@
 /* Defines for SPL */
 #define CONFIG_SPL
 #define CONFIG_SPL_FRAMEWORK
-#define CONFIG_SPL_TEXT_BASE		0x402F0400
-#define CONFIG_SPL_MAX_SIZE		(101 * 1024)
+/*
+ * Place the image at the start of the ROM defined image space and leave
+ * space for SRAM scratch entries (see arch/arm/include/omap_common.h).
+ * We limit our size to the ROM-defined downloaded image area, and use the
+ * rest of the space for stack.
+ */
+#define CONFIG_SPL_TEXT_BASE		0x402F0500
+#define CONFIG_SPL_MAX_SIZE		(0x4030C000 - CONFIG_SPL_TEXT_BASE)
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR
 
 #define CONFIG_SPL_BSS_START_ADDR	0x80000000

include/configs/igep0033.h

@@ -214,8 +214,14 @@
 /* Defines for SPL */
 #define CONFIG_SPL
 #define CONFIG_SPL_FRAMEWORK
-#define CONFIG_SPL_TEXT_BASE		0x402F0400
-#define CONFIG_SPL_MAX_SIZE		(101 * 1024)
+/*
+ * Place the image at the start of the ROM defined image space and leave
+ * space for SRAM scratch entries (see arch/arm/include/omap_common.h).
+ * We limit our size to the ROM-defined downloaded image area, and use the
+ * rest of the space for stack.
+ */
+#define CONFIG_SPL_TEXT_BASE		0x402F0500
+#define CONFIG_SPL_MAX_SIZE		(0x4030C000 - CONFIG_SPL_TEXT_BASE)
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR
 
 #define CONFIG_SPL_BSS_START_ADDR	0x80000000

include/configs/pcm051.h

@@ -204,8 +204,14 @@
 /* Defines for SPL */
 #define CONFIG_SPL
 #define CONFIG_SPL_FRAMEWORK
-#define CONFIG_SPL_TEXT_BASE		0x402F0400
-#define CONFIG_SPL_MAX_SIZE		(101 * 1024)
+/*
+ * Place the image at the start of the ROM defined image space and leave
+ * space for SRAM scratch entries (see arch/arm/include/omap_common.h).
+ * We limit our size to the ROM-defined downloaded image area, and use the
+ * rest of the space for stack.
+ */
+#define CONFIG_SPL_TEXT_BASE		0x402F0500
+#define CONFIG_SPL_MAX_SIZE		(0x4030C000 - CONFIG_SPL_TEXT_BASE)
 #define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR
 
 #define CONFIG_SPL_BSS_START_ADDR	0x80000000