ti: armv7: Move SPL SDRAM init to the right place, drop unused CONFIG_SPL_STACK

Currently in some cases SDRAM init requires global_data to be available
and soon this will not be available prior to board_init_f().  Adjust the
code paths in these cases to be correct.  In some cases we had the SPL
stack be in DDR as we might have large stacks (due to Falcon Mode +
Environment).  In these cases switch to CONFIG_SPL_STACK_R.  In other
cases we had simply been setting CONFIG_SPL_STACK into SRAM.  In these
cases we no longer need to (CONFIG_SYS_INIT_SP_ADDR is used and is also
in SRAM) so drop those lines.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested on Beagleboard, Beagleboard xM
Tested-by: Matt Porter <mporter@konsulko.com>
Tested on Beaglebone Black, AM43xx GP EVM, OMAP5 uEVM, OMAP4 Pandaboard
Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am335x_boneblack_defconfig b/configs/am335x_boneblack_defconfig
index b631c41..f5b807b 100644
--- a/configs/am335x_boneblack_defconfig
+++ b/configs/am335x_boneblack_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="EMMC_BOOT"
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_AM335X_EVM=y
diff --git a/configs/am335x_boneblack_vboot_defconfig b/configs/am335x_boneblack_vboot_defconfig
index 51bf370..db27c3e 100644
--- a/configs/am335x_boneblack_vboot_defconfig
+++ b/configs/am335x_boneblack_vboot_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="EMMC_BOOT,ENABLE_VBOOT"
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_AM335X_EVM=y
diff --git a/configs/am335x_evm_defconfig b/configs/am335x_evm_defconfig
index 2e5aeaa..b2f332e 100644
--- a/configs/am335x_evm_defconfig
+++ b/configs/am335x_evm_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="NAND"
 CONFIG_CONS_INDEX=1
 +S:CONFIG_ARM=y
diff --git a/configs/am335x_evm_nor_defconfig b/configs/am335x_evm_nor_defconfig
index be90163..ed72af6 100644
--- a/configs/am335x_evm_nor_defconfig
+++ b/configs/am335x_evm_nor_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="NAND"
 CONFIG_CONS_INDEX=1
 +S:CONFIG_ARM=y
diff --git a/configs/am335x_evm_spiboot_defconfig b/configs/am335x_evm_spiboot_defconfig
index a6188ea..097dd47 100644
--- a/configs/am335x_evm_spiboot_defconfig
+++ b/configs/am335x_evm_spiboot_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="SPI_BOOT"
 CONFIG_CONS_INDEX=1
 +S:CONFIG_ARM=y
diff --git a/configs/am335x_evm_usbspl_defconfig b/configs/am335x_evm_usbspl_defconfig
index 352c1fb..773042a 100644
--- a/configs/am335x_evm_usbspl_defconfig
+++ b/configs/am335x_evm_usbspl_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_SYS_EXTRA_OPTIONS="NAND,SPL_USBETH_SUPPORT"
 CONFIG_CONS_INDEX=1
 +S:CONFIG_ARM=y
diff --git a/configs/am335x_igep0033_defconfig b/configs/am335x_igep0033_defconfig
index f3544b5..7634d03 100644
--- a/configs/am335x_igep0033_defconfig
+++ b/configs/am335x_igep0033_defconfig
@@ -1,4 +1,6 @@
 CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_AM335X_IGEP0033=y
 CONFIG_SYS_MALLOC_F=y