]> git.sur5r.net Git - u-boot/blobdiff - drivers/power/twl4030.c
bfin: Move gpio support for bf54x and bf60x into the generic driver folder.
[u-boot] / drivers / power / twl4030.c
index 70d4eeb9d1b382a635fc30ef260ec69e63356871..e7d5f132b2bccb037de256ec005260ddc026c2e5 100644 (file)
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  *
- * Derived from code on omapzoom, git://git.omapzoom.com/repo/u-boot.git
+ * twl4030_power_reset_init is derived from code on omapzoom,
+ * git://git.omapzoom.com/repo/u-boot.git
  *
  * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ *
+ * twl4030_power_init is from cpu/omap3/common.c, power_init_r
+ *
+ * (C) Copyright 2004-2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *     Sunil Kumar <sunilsaini05 at gmail.com>
+ *     Shashi Ranjan <shashiranjanmca05 at gmail.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ *     Richard Woodruff <r-woodruff2 at ti.com>
+ *     Syed Mohammed Khasim <khasim at ti.com>
+ *
  */
 
 #include <twl4030.h>
@@ -44,4 +59,57 @@ void twl4030_power_reset_init(void)
        }
 }
 
+/*
+ * Set Device Group and Voltage
+ */
+void twl4030_pmrecv_vsel_cfg(u8 vsel_reg, u8 vsel_val,
+                               u8 dev_grp, u8 dev_grp_sel)
+{
+       int ret;
+
+       /* Select the Voltage */
+       ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, vsel_val,
+                               vsel_reg);
+       if (ret != 0) {
+               printf("Could not write vsel to reg %02x (%d)\n",
+                       vsel_reg, ret);
+               return;
+       }
 
+       /* Select the Device Group (enable the supply if dev_grp_sel != 0) */
+       ret = twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, dev_grp_sel,
+                               dev_grp);
+       if (ret != 0)
+               printf("Could not write grp_sel to reg %02x (%d)\n",
+                       dev_grp, ret);
+}
+
+void twl4030_power_init(void)
+{
+       /* set VAUX3 to 2.8V */
+       twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX3_DEDICATED,
+                               TWL4030_PM_RECEIVER_VAUX3_VSEL_28,
+                               TWL4030_PM_RECEIVER_VAUX3_DEV_GRP,
+                               TWL4030_PM_RECEIVER_DEV_GRP_P1);
+
+       /* set VPLL2 to 1.8V */
+       twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VPLL2_DEDICATED,
+                               TWL4030_PM_RECEIVER_VPLL2_VSEL_18,
+                               TWL4030_PM_RECEIVER_VPLL2_DEV_GRP,
+                               TWL4030_PM_RECEIVER_DEV_GRP_ALL);
+
+       /* set VDAC to 1.8V */
+       twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VDAC_DEDICATED,
+                               TWL4030_PM_RECEIVER_VDAC_VSEL_18,
+                               TWL4030_PM_RECEIVER_VDAC_DEV_GRP,
+                               TWL4030_PM_RECEIVER_DEV_GRP_P1);
+}
+
+void twl4030_power_mmc_init(void)
+{
+       /* Set VMMC1 to 3.15 Volts */
+       twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VMMC1_DEDICATED,
+                               TWL4030_PM_RECEIVER_VMMC1_VSEL_32,
+                               TWL4030_PM_RECEIVER_VMMC1_DEV_GRP,
+                               TWL4030_PM_RECEIVER_DEV_GRP_P1);
+}