I wonder is anyone managed to get the L and M GPIO pins working on the A31
or A80. Apparently, they belong to a different module called RPIO (instead
of PIO which is responsible for A, B, C.. banks). I know that there is an
APB gate that must be turned on for the PIO module. Is there something
equivalent for the RPIO?
What I could find in the ccm.h file in the A31 sdk is:
typedef struct __CCMU_APB1_GATE_REG0068
{
__u32 Adda:1; //bit0, gating APB clock for audio codec,
0-mask, 1-pass
__u32 Spdif:1; //bit1, gating APB clock for SPDIF,
0-mask, 1-pass
__u32 reserved0:2; //bit2, reserved
__u32 Dmic:1; //bit4, gating APB clock for digital mic
__u32 Pio:1; //bit5, gating APB clock for PIO, 0-mask,
1-pass
__u32 reserved1:6; //bit6, reserved
__u32 I2s0:1; //bit12, gating APB clock for I2s-0,
0-mask, 1-pass
__u32 I2s1:1; //bit13, gating APB clock for I2s-1,
0-mask, 1-pass
__u32 reserved2:18; //bit14, reserved
} __ccmu_apb1_gate_reg0068_t;
Not a word about the RPIO, perhaps it has a different name? Something else
which must be done?
Thanks.
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