imx: mx6sabre common: Factorize the Pfuze init function

Since the Pfuze initializations are similar on various mx6 SABRE
boards. Factorize the initialization to a common function in file
board/freescale/common/pfuze.c. So that all SABRE boards BSP can
share the function.

Signed-off-by: Ye.Li <B37916@freescale.com>

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 32b5a3b70ce665781481b9505404605ccac73d1a..25a1bc1a0f57a65790746fba0f0402fe78f8e75e 100644 (file)
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_P5040DS)         += ics307_clk.o
 obj-$(CONFIG_VSC_CROSSBAR)    += vsc3316_3308.o
 obj-$(CONFIG_IDT8T49N222A)     += idt8t49n222a_serdes_clk.o
 obj-$(CONFIG_ZM7300)           += zm7300.o
+obj-$(CONFIG_POWER_PFUZE100)   += pfuze.o
 
 # deal with common files for P-series corenet based devices
 obj-$(CONFIG_P2041RDB) += p_corenet/

diff --git a/board/freescale/common/pfuze.c b/board/freescale/common/pfuze.c
new file mode 100644 (file)
index 0000000..2cd1794
--- /dev/null
+++ b/board/freescale/common/pfuze.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
+
+struct pmic *pfuze_common_init(unsigned char i2cbus)
+{
+       struct pmic *p;
+       int ret;
+       unsigned int reg;
+
+       ret = power_pfuze100_init(i2cbus);
+       if (ret)
+               return NULL;
+
+       p = pmic_get("PFUZE100");
+       ret = pmic_probe(p);
+       if (ret)
+               return NULL;
+
+       pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
+       printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
+
+       /* Set SW1AB stanby volage to 0.975V */
+       pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
+       reg &= ~SW1x_STBY_MASK;
+       reg |= SW1x_0_975V;
+       pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
+
+       /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+       pmic_reg_read(p, PUZE_100_SW1ABCONF, &reg);
+       reg &= ~SW1xCONF_DVSSPEED_MASK;
+       reg |= SW1xCONF_DVSSPEED_4US;
+       pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
+
+       /* Set SW1C standby voltage to 0.975V */
+       pmic_reg_read(p, PFUZE100_SW1CSTBY, &reg);
+       reg &= ~SW1x_STBY_MASK;
+       reg |= SW1x_0_975V;
+       pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
+
+       /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
+       pmic_reg_read(p, PFUZE100_SW1CCONF, &reg);
+       reg &= ~SW1xCONF_DVSSPEED_MASK;
+       reg |= SW1xCONF_DVSSPEED_4US;
+       pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
+
+       return p;
+}

diff --git a/board/freescale/common/pfuze.h b/board/freescale/common/pfuze.h
new file mode 100644 (file)
index 0000000..7a4126c
--- /dev/null
+++ b/board/freescale/common/pfuze.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __PFUZE_BOARD_HELPER__
+#define __PFUZE_BOARD_HELPER__
+
+struct pmic *pfuze_common_init(unsigned char i2cbus);
+
+#endif