Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / power / power_i2c.c

diff --git a/qemu/roms/u-boot/drivers/power/power_i2c.c b/qemu/roms/u-boot/drivers/power/power_i2c.c
new file mode 100644 (file)
index 0000000..ac76870
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/power/power_i2c.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * (C) Copyright 2010
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/types.h>
+#include <power/pmic.h>
+#include <i2c.h>
+#include <compiler.h>
+
+int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
+{
+       unsigned char buf[4] = { 0 };
+
+       if (check_reg(p, reg))
+               return -1;
+
+       switch (pmic_i2c_tx_num) {
+       case 3:
+               if (p->sensor_byte_order == PMIC_SENSOR_BYTE_ORDER_BIG) {
+                       buf[2] = (cpu_to_le32(val) >> 16) & 0xff;
+                       buf[1] = (cpu_to_le32(val) >> 8) & 0xff;
+                       buf[0] = cpu_to_le32(val) & 0xff;
+               } else {
+                       buf[0] = (cpu_to_le32(val) >> 16) & 0xff;
+                       buf[1] = (cpu_to_le32(val) >> 8) & 0xff;
+                       buf[2] = cpu_to_le32(val) & 0xff;
+               }
+               break;
+       case 2:
+               if (p->sensor_byte_order == PMIC_SENSOR_BYTE_ORDER_BIG) {
+                       buf[1] = (cpu_to_le32(val) >> 8) & 0xff;
+                       buf[0] = cpu_to_le32(val) & 0xff;
+               } else {
+                       buf[0] = (cpu_to_le32(val) >> 8) & 0xff;
+                       buf[1] = cpu_to_le32(val) & 0xff;
+               }
+               break;
+       case 1:
+               buf[0] = cpu_to_le32(val) & 0xff;
+               break;
+       default:
+               printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num);
+               return -1;
+       }
+
+       if (i2c_write(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
+               return -1;
+
+       return 0;
+}
+
+int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
+{
+       unsigned char buf[4] = { 0 };
+       u32 ret_val = 0;
+
+       if (check_reg(p, reg))
+               return -1;
+
+       if (i2c_read(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
+               return -1;
+
+       switch (pmic_i2c_tx_num) {
+       case 3:
+               if (p->sensor_byte_order == PMIC_SENSOR_BYTE_ORDER_BIG)
+                       ret_val = le32_to_cpu(buf[2] << 16
+                                             | buf[1] << 8 | buf[0]);
+               else
+                       ret_val = le32_to_cpu(buf[0] << 16 |
+                                             buf[1] << 8 | buf[2]);
+               break;
+       case 2:
+               if (p->sensor_byte_order == PMIC_SENSOR_BYTE_ORDER_BIG)
+                       ret_val = le32_to_cpu(buf[1] << 8 | buf[0]);
+               else
+                       ret_val = le32_to_cpu(buf[0] << 8 | buf[1]);
+               break;
+       case 1:
+               ret_val = le32_to_cpu(buf[0]);
+               break;
+       default:
+               printf("%s: invalid tx_num: %d", __func__, pmic_i2c_tx_num);
+               return -1;
+       }
+       memcpy(val, &ret_val, sizeof(ret_val));
+
+       return 0;
+}
+
+int pmic_probe(struct pmic *p)
+{
+       i2c_set_bus_num(p->bus);
+       debug("Bus: %d PMIC:%s probed!\n", p->bus, p->name);
+       if (i2c_probe(pmic_i2c_addr)) {
+               printf("Can't find PMIC:%s\n", p->name);
+               return -1;
+       }
+
+       return 0;
+}