u-boot: fastboot: Get the board type (HS/GP)ti-u-boot-2013.04+android

This patch adds the functionality to get the board type (HS/GP) and
return it to the host via fastboot getvar secure command.

Change-Id: I05f2f0ac94b4c2f3de949c74eb6f19c344c89a1c
Signed-off-by: Shankar Rao <shankar.nrao@ti.com>

1 files changed, 41 insertions, 1 deletions

diff --git a/drivers/usb/gadget/u_fastboot.c b/drivers/usb/gadget/u_fastboot.c
index 5df693b47d..b861ceda5c 100644
--- a/drivers/usb/gadget/u_fastboot.c
+++ b/drivers/usb/gadget/u_fastboot.c
@@ -65,10 +65,23 @@
 #include <bootimg.h>
 #include <mmc.h>
 #include <malloc.h>
+#include <asm/io.h>
 #include "g_fastboot.h"
 
 /* The 64 defined bytes plus \0 */
 #define RESPONSE_LEN    (64 + 1)
+#define CONTROL_STATUS  0x4A002134
+#define DEVICETYPE_MASK  (0x7 << 6)
+/* omap-type */
+typedef enum {
+        OMAP_TYPE_TEST,
+        OMAP_TYPE_EMU,
+        OMAP_TYPE_SEC,
+        OMAP_TYPE_GP,
+        OMAP_TYPE_BAD,
+} omap_type;
+
+
 
 struct fastboot_config fb_cfg;
 
@@ -110,6 +123,32 @@ static int strcmp_l1(const char *s1, const char *s2)
         return strncmp(s1, s2, strlen(s1));
 }
 
+static char *get_cpu_type(void)
+{
+        static char proc_type[8];
+        unsigned int value;
+
+        value = readl(CONTROL_STATUS);
+        value &= DEVICETYPE_MASK;
+        
+        switch (value >> 6) {
+        case OMAP_TYPE_EMU:
+                strcpy(proc_type, "EMU");
+                break;
+        case OMAP_TYPE_SEC:
+                strcpy(proc_type, "HS");
+                break;
+        case OMAP_TYPE_GP:
+                strcpy(proc_type, "GP");
+                break;
+        default:
+                strcpy(proc_type, "unknown");
+                break;
+        }
+
+        return proc_type;
+}
+
 static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
 {
         char *cmd = req->buf;
@@ -158,7 +197,7 @@ static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
                         strcpy(response, "FAILValue not set");
         } else if (!strcmp_l1("secure", cmd)) {
 
-                s = fb_find_usb_string(FB_STR_PROC_TYPE_IDX);
+                s = get_cpu_type();
                 if (s)
                         strncat(response, s, sizeof(response));
                 else
@@ -172,6 +211,7 @@ static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
         fastboot_tx_write_str(response);
 }
 
+
 static unsigned int rx_bytes_expected(void)
 {
         int rx_remain = download_size - download_bytes;