MX35: Add soc_boot_mode and soc_boot_device to MX35
The functions are required to use the generic
SPL Framework.
Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/cpu/arm1136/mx35/generic.c b/arch/arm/cpu/arm1136/mx35/generic.c
index 41e9639..98aa4d1 100644
--- a/arch/arm/cpu/arm1136/mx35/generic.c
+++ b/arch/arm/cpu/arm1136/mx35/generic.c
@@ -35,6 +35,7 @@
#include <fsl_esdhc.h>
#endif
#include <netdev.h>
+#include <spl.h>
#define CLK_CODE(arm, ahb, sel) (((arm) << 16) + ((ahb) << 8) + (sel))
#define CLK_CODE_ARM(c) (((c) >> 16) & 0xFF)
@@ -492,3 +493,77 @@
struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE_ADDR;
writew(4, &wdog->wcr);
}
+
+#define RCSR_MEM_CTL_WEIM 0
+#define RCSR_MEM_CTL_NAND 1
+#define RCSR_MEM_CTL_ATA 2
+#define RCSR_MEM_CTL_EXPANSION 3
+#define RCSR_MEM_TYPE_NOR 0
+#define RCSR_MEM_TYPE_ONENAND 2
+#define RCSR_MEM_TYPE_SD 0
+#define RCSR_MEM_TYPE_I2C 2
+#define RCSR_MEM_TYPE_SPI 3
+
+u32 spl_boot_device(void)
+{
+ struct ccm_regs *ccm =
+ (struct ccm_regs *)IMX_CCM_BASE;
+
+ u32 rcsr = readl(&ccm->rcsr);
+ u32 mem_type, mem_ctl;
+
+ /* In external mode, no boot device is returned */
+ if ((rcsr >> 10) & 0x03)
+ return BOOT_DEVICE_NONE;
+
+ mem_ctl = (rcsr >> 25) & 0x03;
+ mem_type = (rcsr >> 23) & 0x03;
+
+ switch (mem_ctl) {
+ case RCSR_MEM_CTL_WEIM:
+ switch (mem_type) {
+ case RCSR_MEM_TYPE_NOR:
+ return BOOT_DEVICE_NOR;
+ case RCSR_MEM_TYPE_ONENAND:
+ return BOOT_DEVICE_ONE_NAND;
+ default:
+ return BOOT_DEVICE_NONE;
+ }
+ case RCSR_MEM_CTL_NAND:
+ return BOOT_DEVICE_NAND;
+ case RCSR_MEM_CTL_EXPANSION:
+ switch (mem_type) {
+ case RCSR_MEM_TYPE_SD:
+ return BOOT_DEVICE_MMC1;
+ case RCSR_MEM_TYPE_I2C:
+ return BOOT_DEVICE_I2C;
+ case RCSR_MEM_TYPE_SPI:
+ return BOOT_DEVICE_SPI;
+ default:
+ return BOOT_DEVICE_NONE;
+ }
+ }
+
+ return BOOT_DEVICE_NONE;
+}
+
+#ifdef CONFIG_SPL_BUILD
+u32 spl_boot_mode(void)
+{
+ switch (spl_boot_device()) {
+ case BOOT_DEVICE_MMC1:
+#ifdef CONFIG_SPL_FAT_SUPPORT
+ return MMCSD_MODE_FAT;
+#else
+ return MMCSD_MODE_RAW;
+#endif
+ break;
+ case BOOT_DEVICE_NAND:
+ return 0;
+ break;
+ default:
+ puts("spl: ERROR: unsupported device\n");
+ hang();
+ }
+}
+#endif