OMAP3: Move secure_unlock() function to not duplicate code

[pandora-x-loader.git] / cpu / omap3 / sys_info.c

diff --git a/cpu/omap3/sys_info.c b/cpu/omap3/sys_info.c
index 77b25a5..09bd823 100644 (file)
--- a/cpu/omap3/sys_info.c
+++ b/cpu/omap3/sys_info.c
@@ -257,3 +257,36 @@ void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel)
        else if (osc_clk == S12M)
                *sys_clkin_sel = 0;
 }
+
+/*
+ * secure_unlock(void): setup security registers for access
+ * (GP Device only)
+ */
+void secure_unlock(void)
+{
+       /* Permission values for registers -Full fledged permissions to all */
+       #define UNLOCK_1 0xFFFFFFFF
+       #define UNLOCK_2 0x00000000
+       #define UNLOCK_3 0x0000FFFF
+       /* Protection Module Register Target APE (PM_RT)*/
+       __raw_writel(UNLOCK_1, RT_REQ_INFO_PERMISSION_1);
+       __raw_writel(UNLOCK_1, RT_READ_PERMISSION_0);
+       __raw_writel(UNLOCK_1, RT_WRITE_PERMISSION_0);
+       __raw_writel(UNLOCK_2, RT_ADDR_MATCH_1);
+
+       __raw_writel(UNLOCK_3, GPMC_REQ_INFO_PERMISSION_0);
+       __raw_writel(UNLOCK_3, GPMC_READ_PERMISSION_0);
+       __raw_writel(UNLOCK_3, GPMC_WRITE_PERMISSION_0);
+
+       __raw_writel(UNLOCK_3, OCM_REQ_INFO_PERMISSION_0);
+       __raw_writel(UNLOCK_3, OCM_READ_PERMISSION_0);
+       __raw_writel(UNLOCK_3, OCM_WRITE_PERMISSION_0);
+       __raw_writel(UNLOCK_2, OCM_ADDR_MATCH_2);
+
+       /* IVA Changes */
+       __raw_writel(UNLOCK_3, IVA2_REQ_INFO_PERMISSION_0);
+       __raw_writel(UNLOCK_3, IVA2_READ_PERMISSION_0);
+       __raw_writel(UNLOCK_3, IVA2_WRITE_PERMISSION_0);
+
+       __raw_writel(UNLOCK_1, SMS_RG_ATT0); /* SDRC region 0 public */
+}