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iPod Classic: update documentation on PMU target

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Change-Id: I936889872f83521731e81a972657086a357bb5eb
This commit is contained in:
Cástor Muñoz 2016-01-11 18:37:59 +01:00
parent 166da9add8
commit 9e24d5df1a
1 changed files with 34 additions and 0 deletions
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34
firmware/target/arm/s5l8702/ipod6g/pmu-target.h
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@ -25,6 +25,40 @@
#include <stdbool.h> #include <stdbool.h>
#include "config.h" #include "config.h"
#include <pcf5063x.h>
/* undocummented PMU registers */
#define PCF50635_REG_INT6 0x85
#define PCF50635_REG_INT6M 0x86
#define PCF50635_REG_GPIOSTAT 0x87 /* bit1: GPIO2 status (TBC) */
/* LDOs */
#define LDO_UNK1 1 /* TBC: SoC voltage (USB) */
#define LDO_UNK2 2 /* TBC: SoC voltage (I/O) */
#define LDO_LCD 3
#define LDO_CODEC 4
#define LDO_UNK5 5 /* TBC: nano3g NAND */
#define LDO_CWHEEL 6
#define LDO_ACCY 7 /* HCLDO */
/* Other LDOs:
* AUTOLDO: Hard Disk
* DOWN1: CPU
* DOWN2: SDRAM
* MEMLDO: SDRAM self-refresh (TBC)
*
* EXTON inputs:
* EXTON1: button/holdswitch related (TBC)
* EXTON2: USB Vbus (High when present)
* EXTON3: ACCESORY (Low when present)
*
* GPIO:
* GPIO1: input, Mikey (jack remote ctrl) interrupt (TBC)
* GPIO2: input, hold switch (TBC)
* GPIO3: output, unknown
*/
unsigned char pmu_read(int address); unsigned char pmu_read(int address);
int pmu_write(int address, unsigned char val); int pmu_write(int address, unsigned char val);
int pmu_read_multiple(int address, int count, unsigned char* buffer); int pmu_read_multiple(int address, int count, unsigned char* buffer);