rockbox/firmware/config-fmrecorder.h

/* define this if you have recording possibility */
#define HAVE_RECORDING 1

/* define this if you have a bitmap LCD display */
#define HAVE_LCD_BITMAP 1

/* define this if you have a Recorder style 10-key keyboard */
#define HAVE_RECORDER_KEYPAD 1

/* define this if you have a real-time clock */
#define HAVE_RTC 1

/* Define this if you have a MAS3587F */
#define HAVE_MAS3587F

/* Define this if you have charging control */
#define HAVE_CHARGE_CTRL

/* Define this if you have ATA power-off control */
#define HAVE_ATA_POWER_OFF

/* Define this if you have a FM Recorder key system */
#define HAVE_FMADC 1

/* Define this to the CPU frequency */
#define CPU_FREQ      11059200

/* Battery scale factor (?) */
#define BATTERY_SCALE_FACTOR 6465

/* Define this if you control power on PBDR (instead of PADR) */
#define HAVE_POWEROFF_ON_PBDR