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Diffstat (limited to 'src/soc/rockchip/rk3288/rk808.c')
-rw-r--r--src/soc/rockchip/rk3288/rk808.c51
1 files changed, 32 insertions, 19 deletions
diff --git a/src/soc/rockchip/rk3288/rk808.c b/src/soc/rockchip/rk3288/rk808.c
index 9713a9292f..de19a55135 100644
--- a/src/soc/rockchip/rk3288/rk808.c
+++ b/src/soc/rockchip/rk3288/rk808.c
@@ -25,36 +25,49 @@
#include <stdint.h>
#include <stdlib.h>
-#define RK808_ADDR 0x1b
+#if CONFIG_PMIC_BUS < 0
+#error "PMIC_BUS must be set in mainboard's Kconfig."
+#endif
-#define DCDC_EN 0x23
-#define LDO_EN 0x24
-#define BUCK1SEL 0x2f
-#define BUCK4SEL 0x38
-#define LDO_ONSEL(i) (0x39 + 2 * i)
-#define LDO_SLPSEL(i) (0x3a + 2 * i)
+#define RK808_ADDR 0x1b
-static void rk808_clrsetbits(uint8_t bus, uint8_t reg, uint8_t clr, uint8_t set)
+#define DCDC_EN 0x23
+#define LDO_EN 0x24
+#define BUCK1SEL 0x2f
+#define BUCK4SEL 0x38
+#define LDO_ONSEL(i) (0x39 + 2 * i)
+#define LDO_SLPSEL(i) (0x3a + 2 * i)
+
+static int rk808_read(uint8_t reg, uint8_t *value)
+{
+ return i2c_readb(CONFIG_PMIC_BUS, RK808_ADDR, reg, value);
+}
+
+static int rk808_write(uint8_t reg, uint8_t value)
+{
+ return i2c_writeb(CONFIG_PMIC_BUS, RK808_ADDR, reg, value);
+}
+
+static void rk808_clrsetbits(uint8_t reg, uint8_t clr, uint8_t set)
{
uint8_t value;
- if (i2c_readb(bus, RK808_ADDR, reg, &value) ||
- i2c_writeb(bus, RK808_ADDR, reg, (value & ~clr) | set))
+ if (rk808_read(reg, &value) || rk808_write(reg, (value & ~clr) | set))
printk(BIOS_ERR, "ERROR: Cannot set Rk808[%#x]!\n", reg);
}
-void rk808_configure_switch(uint8_t bus, int sw, int enabled)
+void rk808_configure_switch(int sw, int enabled)
{
assert(sw == 1 || sw == 2);
- rk808_clrsetbits(bus, DCDC_EN, 1 << (sw + 4), !!enabled << (sw + 4));
+ rk808_clrsetbits(DCDC_EN, 1 << (sw + 4), !!enabled << (sw + 4));
}
-void rk808_configure_ldo(uint8_t bus, int ldo, int millivolts)
+void rk808_configure_ldo(int ldo, int millivolts)
{
uint8_t vsel;
if (!millivolts) {
- rk808_clrsetbits(bus, LDO_EN, 1 << (ldo - 1), 0);
+ rk808_clrsetbits(LDO_EN, 1 << (ldo - 1), 0);
return;
}
@@ -77,11 +90,11 @@ void rk808_configure_ldo(uint8_t bus, int ldo, int millivolts)
die("Unknown LDO index!");
}
- rk808_clrsetbits(bus, LDO_ONSEL(ldo), 0x1f, vsel);
- rk808_clrsetbits(bus, LDO_EN, 0, 1 << (ldo - 1));
+ rk808_clrsetbits(LDO_ONSEL(ldo), 0x1f, vsel);
+ rk808_clrsetbits(LDO_EN, 0, 1 << (ldo - 1));
}
-void rk808_configure_buck(uint8_t bus, int buck, int millivolts)
+void rk808_configure_buck(int buck, int millivolts)
{
uint8_t vsel;
uint8_t buck_reg;
@@ -102,6 +115,6 @@ void rk808_configure_buck(uint8_t bus, int buck, int millivolts)
default:
die("fault buck index!");
}
- rk808_clrsetbits(bus, buck_reg, 0x3f, vsel);
- rk808_clrsetbits(bus, DCDC_EN, 0, 1 << (buck - 1));
+ rk808_clrsetbits(buck_reg, 0x3f, vsel);
+ rk808_clrsetbits(DCDC_EN, 0, 1 << (buck - 1));
}