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/include/configs/imx6_spl.h b/include/configs/imx6_spl.h
index 0a585b7..1744f2c 100644
--- a/include/configs/imx6_spl.h
+++ b/include/configs/imx6_spl.h
@@ -61,7 +61,7 @@
#define CONFIG_SPL_LIBDISK_SUPPORT
#endif
-#if defined(CONFIG_MX6SX) || defined(CONFIG_MX6UL)
+#if defined(CONFIG_MX6SX) || defined(CONFIG_MX6UL) || defined(CONFIG_MX6SL)
#define CONFIG_SPL_BSS_START_ADDR 0x88200000
#define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */
#define CONFIG_SYS_SPL_MALLOC_START 0x88300000