armv8/fsl_lsch2: Add chip power supply voltage setup

Set up chip power supply voltage according to voltage ID.
The fuse status register provides the values from on-chip
voltage ID fuses programmed at the factory. These values
define the voltage requirements for the chip.

Main operations:
1. Set up the core voltage
2. Set up the SERDES voltage and reset SERDES lanes
3. Enable/disable DDR controller support 0.9V if needed

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
index 78363b6..9bafa6d 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
@@ -99,6 +99,9 @@ struct ccsr_ahci {
 void fsl_lsch3_early_init_f(void);
 #elif defined(CONFIG_FSL_LSCH2)
 void fsl_lsch2_early_init_f(void);
+int setup_chip_volt(void);
+/* Setup core vdd in unit mV */
+int board_setup_core_volt(u32 vdd);
 #endif
 
 void cpu_name(char *name);