[U-Boot] [PATCH v2] arm: omap: Fix 'get_device_type()' for OMAP34XX

[Derald D. Woods <woods.technical@gmail.com>]

Fixes: 00bbe96ebabb ("arm: omap: Unify get_device_type() function")

The control status register value is embedded in a structure somewhere
in SRAM, with the last refactoring effort. This patch allows OMAP3 EVM
(TMDSEVM3530) to boot again using the known control register base and
offset for 'readl', for the OMAP34XX case.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>

---
Changes in v2:
- Added 'signed-off-by'
- Updated description

---
 arch/arm/mach-omap2/sysinfo-common.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-omap2/sysinfo-common.c b/arch/arm/mach-omap2/sysinfo-common.c
index 1dc7051ab3..3955e803ad 100644
--- a/arch/arm/mach-omap2/sysinfo-common.c
+++ b/arch/arm/mach-omap2/sysinfo-common.c
@@ -16,6 +16,10 @@
  */
 u32 get_device_type(void)
 {
+#if defined(CONFIG_OMAP34XX)
+	return (readl(OMAP34XX_CTRL_BASE + 0x2f0) & DEVICE_TYPE_MASK) >>
+		DEVICE_TYPE_SHIFT;
+#endif
 	return (readl((*ctrl)->control_status) & DEVICE_TYPE_MASK) >>
 		DEVICE_TYPE_SHIFT;
 }
-- 
2.13.3