ec/purism: Remove copied code from system76

This code is identical except for some renaming.

Change-Id: I93795a6087ce0daca27c0d5038a1febd6ca9c775
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56522
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>

2 files changed, 2 insertions, 63 deletions

diff --git a/src/ec/purism/librem-ec/Makefile.inc b/src/ec/purism/librem-ec/Makefile.inc
index c3b66196d6..a3d55532df 100644
--- a/src/ec/purism/librem-ec/Makefile.inc
+++ b/src/ec/purism/librem-ec/Makefile.inc
@@ -1,6 +1,6 @@
 ifeq ($(CONFIG_EC_LIBREM_EC),y)
 
-all-y += librem_ec.c
-smm-$(CONFIG_DEBUG_SMI) += librem_ec.c
+all-y += ../../system76/ec/system76_ec.c
+smm-$(CONFIG_DEBUG_SMI) += ../../system76/ec/system76_ec.c
 
 endif
diff --git a/src/ec/purism/librem-ec/librem_ec.c b/src/ec/purism/librem-ec/librem_ec.c
deleted file mode 100644
index 6615f83ef6..0000000000
--- a/src/ec/purism/librem-ec/librem_ec.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <arch/io.h>
-#include <console/system76_ec.h>
-#include <timer.h>
-
-// This is the command region for Librem EC firmware. It must be
-// enabled for LPC in the mainboard.
-#define LIBREM_EC_BASE 0x0E00
-#define LIBREM_EC_SIZE 256
-
-#define REG_CMD 0
-#define REG_RESULT 1
-
-// When command register is 0, command is complete
-#define CMD_FINISHED 0
-
-// Print command. Registers are unique for each command
-#define CMD_PRINT 4
-#define CMD_PRINT_REG_FLAGS 2
-#define CMD_PRINT_REG_LEN 3
-#define CMD_PRINT_REG_DATA 4
-
-static inline uint8_t system76_ec_read(uint8_t addr)
-{
-	return inb(LIBREM_EC_BASE + (uint16_t)addr);
-}
-
-static inline void system76_ec_write(uint8_t addr, uint8_t data)
-{
-	outb(data, LIBREM_EC_BASE + (uint16_t)addr);
-}
-
-void system76_ec_init(void)
-{
-	// Clear entire command region
-	for (int i = 0; i < LIBREM_EC_SIZE; i++)
-		system76_ec_write((uint8_t)i, 0);
-}
-
-void system76_ec_flush(void)
-{
-	system76_ec_write(REG_CMD, CMD_PRINT);
-
-	// Wait for command completion, for up to 10 milliseconds, with a
-	// test period of 1 microsecond
-	wait_us(10000, system76_ec_read(REG_CMD) == CMD_FINISHED);
-
-	system76_ec_write(CMD_PRINT_REG_LEN, 0);
-}
-
-void system76_ec_print(uint8_t byte)
-{
-	uint8_t len = system76_ec_read(CMD_PRINT_REG_LEN);
-	system76_ec_write(CMD_PRINT_REG_DATA + len, byte);
-	system76_ec_write(CMD_PRINT_REG_LEN, len + 1);
-
-	// If we hit the end of the buffer, or were given a newline, flush
-	if (byte == '\n' || len >= (LIBREM_EC_SIZE - CMD_PRINT_REG_DATA))
-		system76_ec_flush();
-}