sravan/system76-embedded-controller
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Orientation for use with new adapter

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This commit is contained in:
Jeremy Soller 2020-03-16 15:38:23 -06:00
parent 25a60568d0
commit f179052dcb
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GPG Key ID: E988B49EE78A7FB1
1 changed files with 12 additions and 50 deletions
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62
src/board/arduino/mega2560/parallel.c
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@ -10,8 +10,6 @@
#include <arch/uart.h> #include <arch/uart.h>
// Mapping of 24-pin ribbon cable to parallel pins. See schematic // Mapping of 24-pin ribbon cable to parallel pins. See schematic
#define IT8587
#if defined(IT8587)
#define PINS \ #define PINS \
/* Data (KSO0 - KSO7) - bi-directional */ \ /* Data (KSO0 - KSO7) - bi-directional */ \
PIN(d0, 1) \ PIN(d0, 1) \
@ -43,42 +41,6 @@
/* Strap1 (KSI5) */ \ /* Strap1 (KSI5) */ \
/* 1K-Ohm pull-down resistor */ \ /* 1K-Ohm pull-down resistor */ \
PIN(strap_1, 12) PIN(strap_1, 12)
#elif defined(IT5570)
#define PINS \
/* Data (KSO0 - KSO7) - bi-directional */ \
PIN(d0, 24) \
PIN(d1, 23) \
PIN(d2, 22) \
PIN(d3, 18) \
PIN(d4, 16) \
PIN(d5, 15) \
PIN(d6, 12) \
PIN(d7, 9) \
/* Wait# (KSO9) - input */ \
/* low to indicate cycle may begin, high to indicate cycle may end */ \
PIN(wait_n, 7) \
/* Write# (KSI0) - output */ \
/* low to indicate write cycle, high to indicate read cycle */ \
PIN(write_n, 21) \
/* DataStrobe# (KSI1) - output */ \
/* low indicates a data cycle */ \
PIN(data_n, 20) \
/* Reset# (KSI2) - output */ \
/* low requests device reset */ \
PIN(reset_n, 19) \
/* AddressStrobe# (KSI3) - output */ \
/* low indicates an address cycle */ \
PIN(addr_n, 17) \
/* Strap0 (KSI4) */ \
/* 1K-Ohm pull-down resistor */ \
PIN(strap_0, 14) \
/* Strap1 (KSI5) */ \
/* 1K-Ohm pull-down resistor */ \
PIN(strap_1, 13)
#else
#error "Unknown pin configuration: EC not specified"
#endif
#define DATA_BITS \ #define DATA_BITS \
DATA_BIT(0) \ DATA_BIT(0) \
@ -94,18 +56,18 @@
#if !defined(FLIP) #if !defined(FLIP)
// Mapping of 24-pin ribbon cable to GPIOs // Mapping of 24-pin ribbon cable to GPIOs
static struct Gpio GPIOS[24] = { static struct Gpio GPIOS[24] = {
GPIO(A, 1), GPIO(A, 0), GPIO(A, 0), GPIO(A, 1),
GPIO(A, 3), GPIO(A, 2), GPIO(A, 2), GPIO(A, 3),
GPIO(A, 5), GPIO(A, 4), GPIO(A, 4), GPIO(A, 5),
GPIO(A, 7), GPIO(A, 6), GPIO(A, 6), GPIO(A, 7),
GPIO(C, 6), GPIO(C, 7), GPIO(C, 7), GPIO(C, 6),
GPIO(C, 4), GPIO(C, 5), GPIO(C, 5), GPIO(C, 4),
GPIO(C, 2), GPIO(C, 3), GPIO(C, 3), GPIO(C, 2),
GPIO(C, 0), GPIO(C, 1), GPIO(C, 1), GPIO(C, 0),
GPIO(G, 2), GPIO(D, 7), GPIO(D, 7), GPIO(G, 2),
GPIO(G, 0), GPIO(G, 1), GPIO(G, 1), GPIO(G, 0),
GPIO(L, 6), GPIO(L, 7), GPIO(L, 7), GPIO(L, 6),
GPIO(L, 4), GPIO(L, 5), GPIO(L, 5), GPIO(L, 4),
}; };
#else // !defined(FLIP) #else // !defined(FLIP)
// Mapping of 24-pin ribbon cable to GPIOs, flipped // Mapping of 24-pin ribbon cable to GPIOs, flipped