imx: mx6slevk: add SPL support
Add SPL boot support for mx6slevk board.
1. Introduce a configuration file mx6slevk_spl_defconfig.
2. i.MX6SL has same DRAM space with i.MX6SX, need to change SPL DRAM SPACE.
3. Include imx6_spl.h and related SPL macro in mx6slevk.h.
4. select SUPPORT_SPL for TARGET_MX6SLEVK.
5. Add SPL board code to do related initialization.
Boot Log:
U-Boot SPL 2015.07-00544-g1594a76 (Aug 17 2015 - 01:56:59)
reading u-boot.img
reading u-boot.img
U-Boot 2015.07-00544-g1594a76 (Aug 17 2015 - 01:56:59 +0000)
CPU: Freescale i.MX6SL rev1.2 996 MHz (running at 396 MHz)
CPU: Commercial temperature grade (0C to 95C) at 50C
Reset cause: POR
Board: MX6SLEVK
I2C: ready
DRAM: 1 GiB
PMIC: PFUZE100 ID=0x10
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: FEC [PRIME]
Hit any key to stop autoboot: 0
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/configs/mx6slevk_spl_defconfig b/configs/mx6slevk_spl_defconfig
new file mode 100644
index 0000000..1fbd0d1
--- /dev/null
+++ b/configs/mx6slevk_spl_defconfig
@@ -0,0 +1,8 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_TARGET_MX6SLEVK=y
+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,SPL,MX6SL"
+CONFIG_DM=y
+CONFIG_SPI_FLASH=y
+CONFIG_DM_THERMAL=y