From: Oliver Schinagl <oli...@schinagl.nl>
The A31 uses the AXP221 pmic for various voltages.
Signed-off-by: Oliver Schinagl <oli...@schinagl.nl>
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
board/sunxi/board.c | 14 ++++++
configs/Colombus_defconfig | 1 +
drivers/power/Makefile | 1 +
drivers/power/axp221.c | 103 +++++++++++++++++++++++++++++++++++++++++++++
include/axp221.h | 30 +++++++++++++
5 files changed, 149 insertions(+)
create mode 100644 drivers/power/axp221.c
create mode 100644 include/axp221.h
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 8d5d03e..75b29b0 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -19,6 +19,9 @@
#ifdef CONFIG_AXP209_POWER
#include <axp209.h>
#endif
+#ifdef CONFIG_AXP221_POWER
+#include <axp221.h>
+#endif
#include <asm/arch/clock.h>
#include <asm/arch/cpu.h>
#include <asm/arch/dram.h>
@@ -173,6 +176,17 @@ void sunxi_board_init(void)
power_failed |= axp209_set_ldo3(2800);
power_failed |= axp209_set_ldo4(2800);
#endif
+#ifdef CONFIG_AXP221_POWER
+ power_failed = axp221_init();
+ power_failed |= axp221_set_dcdc1(3000);
+ power_failed |= axp221_set_dcdc2(1200);
+ power_failed |= axp221_set_dcdc3(1200);
+ power_failed |= axp221_set_dcdc4(1200);
+ power_failed |= axp221_set_dcdc5(1500);
+#ifdef CONFIG_ENABLE_DLDO1_POWER
+ power_failed |= axp221_set_dldo1(3300);
+#endif
+#endif
printf("DRAM:");
ramsize = sunxi_dram_init();
diff --git a/configs/Colombus_defconfig b/configs/Colombus_defconfig
index 8ba0029..06fb642 100644
--- a/configs/Colombus_defconfig
+++ b/configs/Colombus_defconfig
@@ -1,3 +1,4 @@
+CONFIG_SYS_EXTRA_OPTIONS="AXP221_POWER"
CONFIG_ARM=y
CONFIG_ARCH_SUNXI=y
CONFIG_MACH_SUN6I=y
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index dc64e4d..04bd996 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -7,6 +7,7 @@
obj-$(CONFIG_AXP152_POWER) += axp152.o
obj-$(CONFIG_AXP209_POWER) += axp209.o
+obj-$(CONFIG_AXP221_POWER) += axp221.o
obj-$(CONFIG_EXYNOS_TMU) += exynos-tmu.o
obj-$(CONFIG_FTPMU010_POWER) += ftpmu010.o
obj-$(CONFIG_TPS6586X_POWER) += tps6586x.o
diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c
new file mode 100644
index 0000000..9985fe3
--- /dev/null
+++ b/drivers/power/axp221.c
@@ -0,0 +1,103 @@
+/*
+ * (C) Copyright 2013 Oliver Schinagl <oli...@schinagl.nl>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <asm/arch/p2wi.h>
+#include <axp221.h>
+
+static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
+{
+ if (mvolt < min)
+ mvolt = min;
+ else if (mvolt > max)
+ mvolt = max;
+
+ return (mvolt - min) / div;
+}
+
+int axp221_set_dcdc1(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
+
+ ret = p2wi_write(AXP221_DCDC1_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ ret = p2wi_read(AXP221_OUTPUT_CTRL2, &cfg);
+ if (ret)
+ return ret;
+
+ cfg |= 1 << 7;
+ return p2wi_write(AXP221_OUTPUT_CTRL2, cfg);
+}
+
+int axp221_set_dcdc2(unsigned int mvolt)
+{
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
+
+ return p2wi_write(AXP221_DCDC2_CTRL, cfg);
+}
+
+int axp221_set_dcdc3(unsigned int mvolt)
+{
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
+
+ return p2wi_write(AXP221_DCDC3_CTRL, cfg);
+}
+
+int axp221_set_dcdc4(unsigned int mvolt)
+{
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
+
+ return p2wi_write(AXP221_DCDC4_CTRL, cfg);
+}
+
+int axp221_set_dcdc5(unsigned int mvolt)
+{
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
+
+ return p2wi_write(AXP221_DCDC5_CTRL, cfg);
+}
+
+int axp221_set_dldo1(unsigned int mvolt)
+{
+ int ret;
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
+
+ ret = p2wi_write(AXP221_DLDO1_CTRL, cfg);
+ if (ret)
+ return ret;
+
+ ret = p2wi_read(AXP221_OUTPUT_CTRL2, &cfg);
+ if (ret)
+ return ret;
+
+ cfg |= 1 << 3;
+ return p2wi_write(AXP221_OUTPUT_CTRL2, cfg);
+}
+
+int axp221_init(void)
+{
+ u8 axp_chip_id;
+ int ret;
+
+ p2wi_init();
+ ret = p2wi_set_pmu_address(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
+ AXP221_INIT_DATA);
+ if (ret)
+ return ret;
+
+ ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id);
+ if (ret)
+ return ret;
+
+ if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
+ return -ENODEV;
+
+ return 0;
+}
diff --git a/include/axp221.h b/include/axp221.h
new file mode 100644
index 0000000..c3a6cf4
--- /dev/null
+++ b/include/axp221.h
@@ -0,0 +1,30 @@
+/*
+ * (C) Copyright 2013 Oliver Schinagl <oli...@schinagl.nl>
+ *
+ * X-Powers AXP221 Power Management IC driver
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#define AXP221_CHIP_ADDR 0x68
+#define AXP221_CTRL_ADDR 0x3e
+#define AXP221_INIT_DATA 0x3e
+
+#define AXP221_CHIP_ID 0x03
+#define AXP221_OUTPUT_CTRL1 0x10
+#define AXP221_OUTPUT_CTRL2 0x12
+#define AXP221_OUTPUT_CTRL3 0x13
+#define AXP221_DLDO1_CTRL 0x15
+#define AXP221_DCDC1_CTRL 0x21
+#define AXP221_DCDC2_CTRL 0x22
+#define AXP221_DCDC3_CTRL 0x23
+#define AXP221_DCDC4_CTRL 0x24
+#define AXP221_DCDC5_CTRL 0x25
+
+int axp221_set_dcdc1(unsigned int mvolt);
+int axp221_set_dcdc2(unsigned int mvolt);
+int axp221_set_dcdc3(unsigned int mvolt);
+int axp221_set_dcdc4(unsigned int mvolt);
+int axp221_set_dcdc5(unsigned int mvolt);
+int axp221_set_dldo1(unsigned int mvolt);
+int axp221_init(void);
--
2.1.0
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