board: gateworks: gw_ventana: remove obsolete file

diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c
deleted file mode 100644
index 46448a54db90..000000000000
--- a/board/gateworks/gw_ventana/gsc.c
+++ /dev/null
@@ -1,471 +0,0 @@ 
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2013 Gateworks Corporation
- *
- * Author: Tim Harvey <tharvey@gateworks.com>
- */
-
-#include <common.h>
-#include <command.h>
-#include <log.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <common.h>
-#include <i2c.h>
-#include <linux/ctype.h>
-
-#include <asm/arch/sys_proto.h>
-#include <asm/global_data.h>
-#include <dm/device.h>
-#include <dm/uclass.h>
-
-#include "ventana_eeprom.h"
-#include "gsc.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#if CONFIG_IS_ENABLED(DM_I2C)
-struct udevice *i2c_get_dev(int busno, int slave)
-{
-	struct udevice *dev, *bus;
-	int ret;
-
-	ret = uclass_get_device_by_seq(UCLASS_I2C, busno, &bus);
-	if (ret)
-		return NULL;
-	ret = dm_i2c_probe(bus, slave, 0, &dev);
-	if (ret)
-		return NULL;
-
-	return dev;
-}
-#endif
-
-/*
- * The Gateworks System Controller will fail to ACK a master transaction if
- * it is busy, which can occur during its 1HZ timer tick while reading ADC's.
- * When this does occur, it will never be busy long enough to fail more than
- * 2 back-to-back transfers.  Thus we wrap i2c_read and i2c_write with
- * 3 retries.
- */
-int gsc_i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
-{
-	int retry = 3;
-	int n = 0;
-	int ret;
-#if CONFIG_IS_ENABLED(DM_I2C)
-	struct udevice *dev;
-
-	dev = i2c_get_dev(CONFIG_I2C_GSC, chip);
-	if (!dev)
-		return -ENODEV;
-	ret = i2c_set_chip_offset_len(dev, alen);
-	if (ret) {
-		puts("EEPROM: Failed to set alen\n");
-		return ret;
-	}
-#else
-	i2c_set_bus_num(CONFIG_I2C_GSC);
-#endif
-
-	while (n++ < retry) {
-#if CONFIG_IS_ENABLED(DM_I2C)
-		ret = dm_i2c_read(dev, addr, buf, len);
-#else
-		ret = i2c_read(chip, addr, alen, buf, len);
-#endif
-		if (!ret)
-			break;
-		debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
-		      n, ret);
-		if (ret != -EREMOTEIO)
-			break;
-		mdelay(10);
-	}
-	return ret;
-}
-
-int gsc_i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
-{
-	int retry = 3;
-	int n = 0;
-	int ret;
-#if CONFIG_IS_ENABLED(DM_I2C)
-	struct udevice *dev;
-
-	dev = i2c_get_dev(CONFIG_I2C_GSC, chip);
-	if (!dev)
-		return -ENODEV;
-	ret = i2c_set_chip_offset_len(dev, alen);
-	if (ret) {
-		puts("EEPROM: Failed to set alen\n");
-		return ret;
-	}
-#endif
-
-	while (n++ < retry) {
-#if CONFIG_IS_ENABLED(DM_I2C)
-		ret = dm_i2c_write(dev, addr, buf, len);
-#else
-		ret = i2c_write(chip, addr, alen, buf, len);
-#endif
-		if (!ret)
-			break;
-		debug("%s: 0x%02x 0x%02x retry%d: %d\n", __func__, chip, addr,
-		      n, ret);
-		if (ret != -EREMOTEIO)
-			break;
-		mdelay(10);
-	}
-	mdelay(100);
-	return ret;
-}
-
-int gsc_get_board_temp(void)
-{
-	const void *fdt = gd->fdt_blob;
-	int node, reg, mode, val;
-	const char *label;
-	u8 buf[2];
-	int ret;
-
-	node = fdt_node_offset_by_compatible(fdt, -1, "gw,gsc-adc");
-	if (node <= 0)
-		return node;
-
-	/* iterate over hwmon nodes */
-	node = fdt_first_subnode(fdt, node);
-	while (node > 0) {
-		reg = fdtdec_get_int(fdt, node, "reg", -1);
-		mode = fdtdec_get_int(fdt, node, "gw,mode", -1);
-		label = fdt_stringlist_get(fdt, node, "label", 0, NULL);
-
-		if ((reg == -1) || (mode == -1) || !label) {
-			printf("invalid dt:%s\n", fdt_get_name(fdt, node, NULL));
-			continue;
-		}
-
-		if ((mode != 0) || strcmp(label, "temp"))
-			continue;
-
-		memset(buf, 0, sizeof(buf));
-		ret = gsc_i2c_read(GSC_HWMON_ADDR, reg, 1, buf, sizeof(buf));
-		val = buf[0] | buf[1] << 8;
-		if (val >= 0) {
-			if (val > 0x8000)
-				val -= 0xffff;
-			return val;
-		}
-		node = fdt_next_subnode(fdt, node);
-	}
-
-	return 0;
-}
-
-/* display hardware monitor ADC channels */
-int gsc_hwmon(void)
-{
-	const void *fdt = gd->fdt_blob;
-	int node, reg, mode, len, val, offset;
-	const char *label;
-	u8 buf[2];
-	int ret;
-
-	node = fdt_node_offset_by_compatible(fdt, -1, "gw,gsc-adc");
-	if (node <= 0)
-		return node;
-
-	/* iterate over hwmon nodes */
-	node = fdt_first_subnode(fdt, node);
-	while (node > 0) {
-		reg = fdtdec_get_int(fdt, node, "reg", -1);
-		mode = fdtdec_get_int(fdt, node, "gw,mode", -1);
-		offset = fdtdec_get_int(fdt, node, "gw,voltage-offset-microvolt", 0);
-		label = fdt_stringlist_get(fdt, node, "label", 0, NULL);
-
-		if ((reg == -1) || (mode == -1) || !label)
-			printf("invalid dt:%s\n", fdt_get_name(fdt, node, NULL));
-
-		memset(buf, 0, sizeof(buf));
-		ret = gsc_i2c_read(GSC_HWMON_ADDR, reg, 1, buf, sizeof(buf));
-		val = buf[0] | buf[1] << 8;
-		if (val >= 0) {
-			const u32 *div;
-			int r[2];
-
-			switch (mode) {
-			case 0: /* temperature (C*10) */
-				if (val > 0x8000)
-					val -= 0xffff;
-				printf("%-8s: %d.%ldC\n", label, val / 10, abs(val % 10));
-				break;
-			case 1: /* prescaled voltage */
-				if (val != 0xffff)
-					printf("%-8s: %d.%03dV\n", label, val / 1000, val % 1000);
-				break;
-			case 2: /* scaled based on ref volt and resolution */
-				val *= 2500;
-				val /= 1 << 12;
-
-				/* apply pre-scaler voltage divider */
-				div  = fdt_getprop(fdt, node, "gw,voltage-divider-ohms", &len);
-				if (div && (len == sizeof(uint32_t) * 2)) {
-					r[0] = fdt32_to_cpu(div[0]);
-					r[1] = fdt32_to_cpu(div[1]);
-					if (r[0] && r[1]) {
-						val *= (r[0] + r[1]);
-						val /= r[1];
-					}
-				}
-
-				/* adjust by offset */
-				val += (offset / 1000);
-
-				printf("%-8s: %d.%03dV\n", label, val / 1000, val % 1000);
-				break;
-			}
-		}
-		node = fdt_next_subnode(fdt, node);
-	}
-
-	return 0;
-}
-
-int gsc_info(int verbose)
-{
-	unsigned char buf[16];
-
-	if (gsc_i2c_read(GSC_SC_ADDR, 0, 1, buf, 16))
-		return CMD_RET_FAILURE;
-
-	printf("GSC:   v%d", buf[GSC_SC_FWVER]);
-	printf(" 0x%04x", buf[GSC_SC_FWCRC] | buf[GSC_SC_FWCRC+1]<<8);
-	printf(" WDT:%sabled", (buf[GSC_SC_CTRL1] & (1<<GSC_SC_CTRL1_WDEN))
-		? "en" : "dis");
-	if (buf[GSC_SC_STATUS] & (1 << GSC_SC_IRQ_WATCHDOG)) {
-		buf[GSC_SC_STATUS] &= ~(1 << GSC_SC_IRQ_WATCHDOG);
-		puts(" WDT_RESET");
-		gsc_i2c_write(GSC_SC_ADDR, GSC_SC_STATUS, 1,
-			      &buf[GSC_SC_STATUS], 1);
-	}
-	printf(" board temp at %dC", gsc_get_board_temp() / 10);
-	puts("\n");
-	if (!verbose)
-		return CMD_RET_SUCCESS;
-
-	gsc_hwmon();
-
-	return 0;
-}
-
-/*
- *  The Gateworks System Controller implements a boot
- *  watchdog (always enabled) as a workaround for IMX6 boot related
- *  errata such as:
- *    ERR005768 - no fix scheduled
- *    ERR006282 - fixed in silicon r1.2
- *    ERR007117 - fixed in silicon r1.3
- *    ERR007220 - fixed in silicon r1.3
- *    ERR007926 - no fix scheduled
- *  see http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf
- *
- * Disable the boot watchdog
- */
-int gsc_boot_wd_disable(void)
-{
-	u8 reg;
-
-	if (!gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1)) {
-		reg |= (1 << GSC_SC_CTRL1_WDDIS);
-		if (!gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-			return 0;
-	}
-	puts("Error: could not disable GSC Watchdog\n");
-	return 1;
-}
-
-/* determine BOM revision from model */
-int get_bom_rev(const char *str)
-{
-	int  rev_bom = 0;
-	int i;
-
-	for (i = strlen(str) - 1; i > 0; i--) {
-		if (str[i] == '-')
-			break;
-		if (str[i] >= '1' && str[i] <= '9') {
-			rev_bom = str[i] - '0';
-			break;
-		}
-	}
-	return rev_bom;
-}
-
-/* determine PCB revision from model */
-char get_pcb_rev(const char *str)
-{
-	char rev_pcb = 'A';
-	int i;
-
-	for (i = strlen(str) - 1; i > 0; i--) {
-		if (str[i] == '-')
-			break;
-		if (str[i] >= 'A') {
-			rev_pcb = str[i];
-			break;
-		}
-	}
-	return rev_pcb;
-}
-
-/*
- * get dt name based on model and detail level:
- */
-const char *gsc_get_dtb_name(int level, char *buf, int sz)
-{
-	const char *model = (const char *)ventana_info.model;
-	const char *pre = is_mx6dq() ? "imx6q-" : "imx6dl-";
-	int modelno, rev_pcb, rev_bom;
-
-	/* a few board models are dt equivalents to other models */
-	if (strncasecmp(model, "gw5906", 6) == 0)
-		model = "gw552x-d";
-	else if (strncasecmp(model, "gw5908", 6) == 0)
-		model = "gw53xx-f";
-	else if (strncasecmp(model, "gw5905", 6) == 0)
-		model = "gw5904-a";
-
-	modelno = ((model[2] - '0') * 1000)
-		  + ((model[3] - '0') * 100)
-		  + ((model[4] - '0') * 10)
-		  + (model[5] - '0');
-	rev_pcb = tolower(get_pcb_rev(model));
-	rev_bom = get_bom_rev(model);
-
-	/* compare model/rev/bom in order of most specific to least */
-	snprintf(buf, sz, "%s%04d", pre, modelno);
-	switch (level) {
-	case 0: /* full model first (ie gw5400-a1) */
-		if (rev_bom) {
-			snprintf(buf, sz, "%sgw%04d-%c%d", pre, modelno, rev_pcb, rev_bom);
-			break;
-		}
-		fallthrough;
-	case 1: /* don't care about bom rev (ie gw5400-a) */
-		snprintf(buf, sz, "%sgw%04d-%c", pre, modelno, rev_pcb);
-		break;
-	case 2: /* don't care about the pcb rev (ie gw5400) */
-		snprintf(buf, sz, "%sgw%04d", pre, modelno);
-		break;
-	case 3: /* look for generic model (ie gw540x) */
-		snprintf(buf, sz, "%sgw%03dx", pre, modelno / 10);
-		break;
-	case 4: /* look for more generic model (ie gw54xx) */
-		snprintf(buf, sz, "%sgw%02dxx", pre, modelno / 100);
-		break;
-	default: /* give up */
-		return NULL;
-	}
-
-	return buf;
-}
-
-#if defined(CONFIG_CMD_GSC) && !defined(CONFIG_SPL_BUILD)
-static int do_gsc_sleep(struct cmd_tbl *cmdtp, int flag, int argc,
-			char *const argv[])
-{
-	unsigned char reg;
-	unsigned long secs = 0;
-
-	if (argc < 2)
-		return CMD_RET_USAGE;
-
-	secs = dectoul(argv[1], NULL);
-	printf("GSC Sleeping for %ld seconds\n", secs);
-
-	reg = (secs >> 24) & 0xff;
-	if (gsc_i2c_write(GSC_SC_ADDR, 9, 1, &reg, 1))
-		goto error;
-	reg = (secs >> 16) & 0xff;
-	if (gsc_i2c_write(GSC_SC_ADDR, 8, 1, &reg, 1))
-		goto error;
-	reg = (secs >> 8) & 0xff;
-	if (gsc_i2c_write(GSC_SC_ADDR, 7, 1, &reg, 1))
-		goto error;
-	reg = secs & 0xff;
-	if (gsc_i2c_write(GSC_SC_ADDR, 6, 1, &reg, 1))
-		goto error;
-	if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-		goto error;
-	reg |= (1 << 2);
-	if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-		goto error;
-	reg &= ~(1 << 2);
-	reg |= 0x3;
-	if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-		goto error;
-
-	return CMD_RET_SUCCESS;
-
-error:
-	printf("i2c error\n");
-	return CMD_RET_FAILURE;
-}
-
-static int do_gsc_wd(struct cmd_tbl *cmdtp, int flag, int argc,
-		     char *const argv[])
-{
-	unsigned char reg;
-
-	if (argc < 2)
-		return CMD_RET_USAGE;
-
-	if (strcasecmp(argv[1], "enable") == 0) {
-		int timeout = 0;
-
-		if (argc > 2)
-			timeout = dectoul(argv[2], NULL);
-		if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-			return CMD_RET_FAILURE;
-		reg &= ~((1 << GSC_SC_CTRL1_WDEN) | (1 << GSC_SC_CTRL1_WDTIME));
-		if (timeout == 60)
-			reg |= (1 << GSC_SC_CTRL1_WDTIME);
-		else
-			timeout = 30;
-		reg |= (1 << GSC_SC_CTRL1_WDEN);
-		if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-			return CMD_RET_FAILURE;
-		printf("GSC Watchdog enabled with timeout=%d seconds\n",
-		       timeout);
-	} else if (strcasecmp(argv[1], "disable") == 0) {
-		if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-			return CMD_RET_FAILURE;
-		reg &= ~((1 << GSC_SC_CTRL1_WDEN) | (1 << GSC_SC_CTRL1_WDTIME));
-		if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, &reg, 1))
-			return CMD_RET_FAILURE;
-		printf("GSC Watchdog disabled\n");
-	} else {
-		return CMD_RET_USAGE;
-	}
-	return CMD_RET_SUCCESS;
-}
-
-static int do_gsc(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	if (argc < 2)
-		return gsc_info(1);
-
-	if (strcasecmp(argv[1], "wd") == 0)
-		return do_gsc_wd(cmdtp, flag, --argc, ++argv);
-	else if (strcasecmp(argv[1], "sleep") == 0)
-		return do_gsc_sleep(cmdtp, flag, --argc, ++argv);
-
-	return CMD_RET_USAGE;
-}
-
-U_BOOT_CMD(
-	gsc, 4, 1, do_gsc, "GSC configuration",
-	"[wd enable [30|60]]|[wd disable]|[sleep <secs>]\n"
-	);
-
-#endif /* CONFIG_CMD_GSC */