ti816x: Add additional boot device detection logic

It has been observed that between PG1.0 and PG2.0/2.1 depending on
which device we boot from, we may see a different value here than is
documented in the TRM.  Update the values for NAND and MMC1 based on
real life usage on each revision.

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

diff --git a/arch/arm/mach-omap2/boot-common.c b/arch/arm/mach-omap2/boot-common.c
index 29c8f23..b77506d 100644 (file)
--- a/arch/arm/mach-omap2/boot-common.c
+++ b/arch/arm/mach-omap2/boot-common.c
@@ -65,6 +65,23 @@ void save_omap_boot_params(void)
        if (boot_device == BOOT_DEVICE_QSPI_4)
                boot_device = BOOT_DEVICE_SPI;
 #endif
+#ifdef CONFIG_TI816X
+       /*
+        * On PG2.0 and later TI816x the values we get when booting are not the
+        * same as on PG1.0, which is what the defines are based on.  Update
+        * them as needed.
+        */
+       if (get_cpu_rev() != 1) {
+               if (boot_device == 0x05) {
+                       omap_boot_params->boot_device = BOOT_DEVICE_NAND;
+                       boot_device = BOOT_DEVICE_NAND;
+               }
+               if (boot_device == 0x08) {
+                       omap_boot_params->boot_device = BOOT_DEVICE_MMC1;
+                       boot_device = BOOT_DEVICE_MMC1;
+               }
+       }
+#endif
        /*
         * When booting from peripheral booting, the boot device is not usable
         * as-is (unless there is support for it), so the boot device is instead