1 files changed, 0 insertions, 148 deletions
diff --git a/arch/mips/lasat/at93c.c b/arch/mips/lasat/at93c.c
deleted file mode 100644
index f895fe94b937..000000000000
--- a/arch/mips/lasat/at93c.c
+++ /dev/null
@@ -1,148 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Atmel AT93C46 serial eeprom driver
- *
- * Brian Murphy <brian.murphy@eicon.com>
- *
- */
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <asm/lasat/lasat.h>
-
-#include "at93c.h"
-
-#define AT93C_ADDR_SHIFT	7
-#define AT93C_ADDR_MAX		((1 << AT93C_ADDR_SHIFT) - 1)
-#define AT93C_RCMD		(0x6 << AT93C_ADDR_SHIFT)
-#define AT93C_WCMD		(0x5 << AT93C_ADDR_SHIFT)
-#define AT93C_WENCMD		0x260
-#define AT93C_WDSCMD		0x200
-
-struct at93c_defs *at93c;
-
-static void at93c_reg_write(u32 val)
-{
-	*at93c->reg = val;
-}
-
-static u32 at93c_reg_read(void)
-{
-	u32 tmp = *at93c->reg;
-	return tmp;
-}
-
-static u32 at93c_datareg_read(void)
-{
-	u32 tmp = *at93c->rdata_reg;
-	return tmp;
-}
-
-static void at93c_cycle_clk(u32 data)
-{
-	at93c_reg_write(data | at93c->clk);
-	lasat_ndelay(250);
-	at93c_reg_write(data & ~at93c->clk);
-	lasat_ndelay(250);
-}
-
-static void at93c_write_databit(u8 bit)
-{
-	u32 data = at93c_reg_read();
-	if (bit)
-		data |= 1 << at93c->wdata_shift;
-	else
-		data &= ~(1 << at93c->wdata_shift);
-
-	at93c_reg_write(data);
-	lasat_ndelay(100);
-	at93c_cycle_clk(data);
-}
-
-static unsigned int at93c_read_databit(void)
-{
-	u32 data;
-
-	at93c_cycle_clk(at93c_reg_read());
-	data = (at93c_datareg_read() >> at93c->rdata_shift) & 1;
-	return data;
-}
-
-static u8 at93c_read_byte(void)
-{
-	int i;
-	u8 data = 0;
-
-	for (i = 0; i <= 7; i++) {
-		data <<= 1;
-		data |= at93c_read_databit();
-	}
-	return data;
-}
-
-static void at93c_write_bits(u32 data, int size)
-{
-	int i;
-	int shift = size - 1;
-	u32 mask = (1 << shift);
-
-	for (i = 0; i < size; i++) {
-		at93c_write_databit((data & mask) >> shift);
-		data <<= 1;
-	}
-}
-
-static void at93c_init_op(void)
-{
-	at93c_reg_write((at93c_reg_read() | at93c->cs) &
-			~at93c->clk & ~(1 << at93c->rdata_shift));
-	lasat_ndelay(50);
-}
-
-static void at93c_end_op(void)
-{
-	at93c_reg_write(at93c_reg_read() & ~at93c->cs);
-	lasat_ndelay(250);
-}
-
-static void at93c_wait(void)
-{
-	at93c_init_op();
-	while (!at93c_read_databit())
-		;
-	at93c_end_op();
-};
-
-static void at93c_disable_wp(void)
-{
-	at93c_init_op();
-	at93c_write_bits(AT93C_WENCMD, 10);
-	at93c_end_op();
-}
-
-static void at93c_enable_wp(void)
-{
-	at93c_init_op();
-	at93c_write_bits(AT93C_WDSCMD, 10);
-	at93c_end_op();
-}
-
-u8 at93c_read(u8 addr)
-{
-	u8 byte;
-	at93c_init_op();
-	at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_RCMD, 10);
-	byte = at93c_read_byte();
-	at93c_end_op();
-	return byte;
-}
-
-void at93c_write(u8 addr, u8 data)
-{
-	at93c_disable_wp();
-	at93c_init_op();
-	at93c_write_bits((addr & AT93C_ADDR_MAX)|AT93C_WCMD, 10);
-	at93c_write_bits(data, 8);
-	at93c_end_op();
-	at93c_wait();
-	at93c_enable_wp();
-}