Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 131 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/mach-sunxi/pmic_bus.c b/roms/u-boot/arch/arm/mach-sunxi/pmic_bus.c
new file mode 100644
index 000000000..0394ce856
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-sunxi/pmic_bus.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Sunxi PMIC bus access helpers
+ *
+ * The axp152 & axp209 use an i2c bus, the axp221 uses the p2wi bus and the
+ * axp223 uses the rsb bus, these functions abstract this.
+ */
+
+#include <common.h>
+#include <asm/arch/p2wi.h>
+#include <asm/arch/rsb.h>
+#include <i2c.h>
+#include <asm/arch/pmic_bus.h>
+
+#define AXP152_I2C_ADDR			0x30
+
+#define AXP209_I2C_ADDR			0x34
+
+#define AXP305_I2C_ADDR			0x36
+
+#define AXP221_CHIP_ADDR		0x68
+#define AXP221_CTRL_ADDR		0x3e
+#define AXP221_INIT_DATA		0x3e
+
+/* AXP818 device and runtime addresses are same as AXP223 */
+#define AXP223_DEVICE_ADDR		0x3a3
+#define AXP223_RUNTIME_ADDR		0x2d
+
+int pmic_bus_init(void)
+{
+	/* This cannot be 0 because it is used in SPL before BSS is ready */
+	static int needs_init = 1;
+	__maybe_unused int ret;
+
+	if (!needs_init)
+		return 0;
+
+#if defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
+# ifdef CONFIG_MACH_SUN6I
+	p2wi_init();
+	ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
+				       AXP221_INIT_DATA);
+# elif defined CONFIG_MACH_SUN8I_R40
+	/* Nothing. R40 uses the AXP221s in I2C mode */
+	ret = 0;
+# else
+	ret = rsb_init();
+	if (ret)
+		return ret;
+
+	ret = rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR);
+# endif
+	if (ret)
+		return ret;
+#endif
+
+	needs_init = 0;
+	return 0;
+}
+
+int pmic_bus_read(u8 reg, u8 *data)
+{
+#ifdef CONFIG_AXP152_POWER
+	return i2c_read(AXP152_I2C_ADDR, reg, 1, data, 1);
+#elif defined CONFIG_AXP209_POWER
+	return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1);
+#elif defined CONFIG_AXP305_POWER
+	return i2c_read(AXP305_I2C_ADDR, reg, 1, data, 1);
+#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
+# ifdef CONFIG_MACH_SUN6I
+	return p2wi_read(reg, data);
+# elif defined CONFIG_MACH_SUN8I_R40
+	return i2c_read(AXP209_I2C_ADDR, reg, 1, data, 1);
+# else
+	return rsb_read(AXP223_RUNTIME_ADDR, reg, data);
+# endif
+#endif
+}
+
+int pmic_bus_write(u8 reg, u8 data)
+{
+#ifdef CONFIG_AXP152_POWER
+	return i2c_write(AXP152_I2C_ADDR, reg, 1, &data, 1);
+#elif defined CONFIG_AXP209_POWER
+	return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1);
+#elif defined CONFIG_AXP305_POWER
+	return i2c_write(AXP305_I2C_ADDR, reg, 1, &data, 1);
+#elif defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
+# ifdef CONFIG_MACH_SUN6I
+	return p2wi_write(reg, data);
+# elif defined CONFIG_MACH_SUN8I_R40
+	return i2c_write(AXP209_I2C_ADDR, reg, 1, &data, 1);
+# else
+	return rsb_write(AXP223_RUNTIME_ADDR, reg, data);
+# endif
+#endif
+}
+
+int pmic_bus_setbits(u8 reg, u8 bits)
+{
+	int ret;
+	u8 val;
+
+	ret = pmic_bus_read(reg, &val);
+	if (ret)
+		return ret;
+
+	if ((val & bits) == bits)
+		return 0;
+
+	val |= bits;
+	return pmic_bus_write(reg, val);
+}
+
+int pmic_bus_clrbits(u8 reg, u8 bits)
+{
+	int ret;
+	u8 val;
+
+	ret = pmic_bus_read(reg, &val);
+	if (ret)
+		return ret;
+
+	if (!(val & bits))
+		return 0;
+
+	val &= ~bits;
+	return pmic_bus_write(reg, val);
+}