leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

armv8/fsl_lsch2: Add chip power supply voltage setup

Browse Source 
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>
This commit is contained in:
Hou Zhiqiang
2016-12-09 16:09:00 +08:00
committed by York Sun
parent 6424577b1b
commit 031acdbae8
5 changed files with 373 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h
View File

@@ -162,6 +162,14 @@ int is_serdes_prtcl_valid(int serdes, u32 prtcl);
#ifdef CONFIG_FSL_LSCH2
const char *serdes_clock_to_string(u32 clock);
int get_serdes_protocol(void);
#ifdef CONFIG_SYS_HAS_SERDES
/* Get the volt of SVDD in unit mV */
int get_serdes_volt(void);
/* Set the volt of SVDD in unit mV */
int set_serdes_volt(int svdd);
/* The target volt of SVDD in unit mV */
int setup_serdes_volt(u32 svdd);
#endif
#endif
#endif /* __FSL_SERDES_H__ */

3
arch/arm/include/asm/arch-fsl-layerscape/soc.h
View File

@@ -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);