commit 61cf22505339 ("board: gateworks: gw_ventana: use comomn GSC driver") moved to the common GSC driver and moved remaining board-specific functions to eeprom.c. The functions in gsc.c are no longer used and it was removed from the Makefile but the file itself was not removed. Remove it now.
Signed-off-by: Tim Harvey tharvey@gateworks.com --- board/gateworks/gw_ventana/gsc.c | 471 ------------------------------- 1 file changed, 471 deletions(-) delete mode 100644 board/gateworks/gw_ventana/gsc.c
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, ®, 1)) { - reg |= (1 << GSC_SC_CTRL1_WDDIS); - if (!gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 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, ®, 1)) - goto error; - reg = (secs >> 16) & 0xff; - if (gsc_i2c_write(GSC_SC_ADDR, 8, 1, ®, 1)) - goto error; - reg = (secs >> 8) & 0xff; - if (gsc_i2c_write(GSC_SC_ADDR, 7, 1, ®, 1)) - goto error; - reg = secs & 0xff; - if (gsc_i2c_write(GSC_SC_ADDR, 6, 1, ®, 1)) - goto error; - if (gsc_i2c_read(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) - goto error; - reg |= (1 << 2); - if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 1)) - goto error; - reg &= ~(1 << 2); - reg |= 0x3; - if (gsc_i2c_write(GSC_SC_ADDR, GSC_SC_CTRL1, 1, ®, 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, ®, 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, ®, 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, ®, 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, ®, 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 */