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ARM: mx6: pmu: Expose PMU LDO configuration interface

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Make the PMU LDO configuration interface available to board code,
so that board code can reconfigure the internal LDOs of the SoC.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Eric Nelson <eric@nelint.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Eric Nelson <eric@nelint.com>
This commit is contained in:
Marek Vasut 2019-11-26 09:35:32 +01:00 committed by Stefano Babic
parent c671d8af0b
commit df1b721f60
2 changed files with 9 additions and 7 deletions
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8
arch/arm/include/asm/arch-mx6/sys_proto.h
View File

@ -20,6 +20,14 @@
int imx6_pcie_toggle_power(void); int imx6_pcie_toggle_power(void);
int imx6_pcie_toggle_reset(void); int imx6_pcie_toggle_reset(void);
enum ldo_reg {
LDO_ARM,
LDO_SOC,
LDO_PU,
};
int set_ldo_voltage(enum ldo_reg ldo, u32 mv);
/** /**
* iomuxc_set_rgmii_io_voltage - set voltage level of RGMII/USB pins * iomuxc_set_rgmii_io_voltage - set voltage level of RGMII/USB pins
* *

8
arch/arm/mach-imx/mx6/soc.c
View File

@ -24,12 +24,6 @@
#include <imx_thermal.h> #include <imx_thermal.h>
#include <mmc.h> #include <mmc.h>
enum ldo_reg {
LDO_ARM,
LDO_SOC,
LDO_PU,
};
struct scu_regs { struct scu_regs {
u32 ctrl; u32 ctrl;
u32 config; u32 config;
@ -255,7 +249,7 @@ static void clear_ldo_ramp(void)
* Possible values are from 0.725V to 1.450V in steps of * Possible values are from 0.725V to 1.450V in steps of
* 0.025V (25mV). * 0.025V (25mV).
*/ */
static int set_ldo_voltage(enum ldo_reg ldo, u32 mv) int set_ldo_voltage(enum ldo_reg ldo, u32 mv)
{ {
struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
u32 val, step, old, reg = readl(&anatop->reg_core); u32 val, step, old, reg = readl(&anatop->reg_core);