board: gateworks: venice: use common GSC driver
Use the common GSC driver.
This allows us to do some additional cleanup:
- rename gsc{.c,.h} to eeprom{.c.h} for clarity
- collapse eeprom_get_dev
- remove unnecessary header files and alphabatize includes
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey
Stefano Babic
parent
82b16555cf
commit
fb9ec33878
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@ -57,6 +57,10 @@
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u-boot,dm-spl;
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u-boot,dm-spl;
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};
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};
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&gsc {
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u-boot,dm-spl;
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};
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&i2c2 {
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&i2c2 {
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u-boot,dm-spl;
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u-boot,dm-spl;
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};
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};
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@ -27,6 +27,13 @@
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pinctrl-0 = <&pinctrl_i2c1>;
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pinctrl-0 = <&pinctrl_i2c1>;
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status = "okay";
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status = "okay";
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gsc: gsc@20 {
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compatible = "gw,gsc";
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reg = <0x20>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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eeprom@51 {
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eeprom@51 {
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compatible = "atmel,24c02";
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compatible = "atmel,24c02";
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reg = <0x51>;
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reg = <0x51>;
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@ -94,6 +94,10 @@
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u-boot,dm-spl;
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u-boot,dm-spl;
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};
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};
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&gsc {
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u-boot,dm-spl;
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};
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&i2c2 {
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&i2c2 {
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u-boot,dm-spl;
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u-boot,dm-spl;
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};
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};
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@ -27,6 +27,13 @@
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pinctrl-0 = <&pinctrl_i2c1>;
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pinctrl-0 = <&pinctrl_i2c1>;
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status = "okay";
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status = "okay";
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gsc: gsc@20 {
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compatible = "gw,gsc";
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reg = <0x20>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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eeprom@51 {
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eeprom@51 {
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compatible = "atmel,24c02";
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compatible = "atmel,24c02";
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reg = <0x51>;
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reg = <0x51>;
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@ -97,6 +97,8 @@ config TARGET_IMX8MM_VENICE
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select IMX8MM
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select IMX8MM
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select SUPPORT_SPL
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select SUPPORT_SPL
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select IMX8M_LPDDR4
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select IMX8M_LPDDR4
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select GATEWORKS_SC
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select MISC
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config TARGET_KONTRON_MX8MM
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config TARGET_KONTRON_MX8MM
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bool "Kontron Electronics N80xx"
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bool "Kontron Electronics N80xx"
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@ -143,6 +145,8 @@ config TARGET_IMX8MN_VENICE
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select IMX8MN
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select IMX8MN
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select SUPPORT_SPL
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select SUPPORT_SPL
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select IMX8M_LPDDR4
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select IMX8M_LPDDR4
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select GATEWORKS_SC
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select MISC
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config TARGET_IMX8MP_EVK
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config TARGET_IMX8MP_EVK
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bool "imx8mp LPDDR4 EVK board"
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bool "imx8mp LPDDR4 EVK board"
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@ -4,7 +4,7 @@
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# SPDX-License-Identifier: GPL-2.0+
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# SPDX-License-Identifier: GPL-2.0+
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#
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#
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obj-y += venice.o gsc.o
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obj-y += venice.o eeprom.o
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ifdef CONFIG_SPL_BUILD
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ifdef CONFIG_SPL_BUILD
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obj-y += spl.o
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obj-y += spl.o
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@ -0,0 +1,353 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2021 Gateworks Corporation
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*/
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#include <common.h>
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#include <gsc.h>
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#include <hexdump.h>
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#include <i2c.h>
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#include <dm/uclass.h>
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#include "eeprom.h"
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/* I2C */
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#define SOM_EEPROM_BUSNO 0
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#define SOM_EEPROM_ADDR 0x51
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#define BASEBOARD_EEPROM_BUSNO 1
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#define BASEBOARD_EEPROM_ADDR 0x52
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struct venice_board_info som_info;
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struct venice_board_info base_info;
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char venice_model[32];
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u32 venice_serial;
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/* return a mac address from EEPROM info */
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int eeprom_getmac(int index, uint8_t *address)
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{
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int i, j;
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u32 maclow, machigh;
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u64 mac;
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j = 0;
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if (som_info.macno) {
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maclow = som_info.mac[5];
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maclow |= som_info.mac[4] << 8;
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maclow |= som_info.mac[3] << 16;
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maclow |= som_info.mac[2] << 24;
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machigh = som_info.mac[1];
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machigh |= som_info.mac[0] << 8;
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mac = machigh;
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mac <<= 32;
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mac |= maclow;
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for (i = 0; i < som_info.macno; i++, j++) {
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if (index == j)
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goto out;
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}
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}
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maclow = base_info.mac[5];
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maclow |= base_info.mac[4] << 8;
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maclow |= base_info.mac[3] << 16;
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maclow |= base_info.mac[2] << 24;
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machigh = base_info.mac[1];
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machigh |= base_info.mac[0] << 8;
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mac = machigh;
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mac <<= 32;
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mac |= maclow;
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for (i = 0; i < base_info.macno; i++, j++) {
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if (index == j)
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goto out;
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}
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return -EINVAL;
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out:
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mac += i;
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address[0] = (mac >> 40) & 0xff;
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address[1] = (mac >> 32) & 0xff;
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address[2] = (mac >> 24) & 0xff;
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address[3] = (mac >> 16) & 0xff;
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address[4] = (mac >> 8) & 0xff;
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address[5] = (mac >> 0) & 0xff;
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return 0;
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}
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static int eeprom_read(int busno, int slave, int alen, struct venice_board_info *info)
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{
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int i;
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int chksum;
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unsigned char *buf = (unsigned char *)info;
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struct udevice *dev, *bus;
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int ret;
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/* probe device */
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ret = uclass_get_device_by_seq(UCLASS_I2C, busno, &bus);
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if (ret)
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return ret;
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ret = dm_i2c_probe(bus, slave, 0, &dev);
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if (ret)
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return ret;
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/* read eeprom config section */
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memset(info, 0, sizeof(*info));
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ret = i2c_set_chip_offset_len(dev, alen);
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if (ret) {
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puts("EEPROM: Failed to set alen\n");
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return ret;
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}
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ret = dm_i2c_read(dev, 0x00, buf, sizeof(*info));
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if (ret) {
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if (slave == SOM_EEPROM_ADDR)
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printf("EEPROM: Failed to read EEPROM\n");
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return ret;
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}
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/* validate checksum */
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for (chksum = 0, i = 0; i < (int)sizeof(*info) - 2; i++)
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chksum += buf[i];
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if ((info->chksum[0] != chksum >> 8) ||
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(info->chksum[1] != (chksum & 0xff))) {
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printf("EEPROM: I2C%d@0x%02x: Invalid Checksum\n", busno, slave);
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print_hex_dump_bytes("", DUMP_PREFIX_NONE, buf, sizeof(*info));
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memset(info, 0, sizeof(*info));
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return -EINVAL;
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}
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/* sanity check valid model */
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if (info->model[0] != 'G' || info->model[1] != 'W') {
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printf("EEPROM: I2C%d@0x%02x: Invalid Model in EEPROM\n", busno, slave);
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print_hex_dump_bytes("", DUMP_PREFIX_NONE, buf, sizeof(*info));
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memset(info, 0, sizeof(*info));
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return -EINVAL;
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}
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return 0;
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}
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/* determine BOM revision from model */
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int get_bom_rev(const char *str)
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{
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int rev_bom = 0;
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int i;
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for (i = strlen(str) - 1; i > 0; i--) {
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if (str[i] == '-')
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break;
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if (str[i] >= '1' && str[i] <= '9') {
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rev_bom = str[i] - '0';
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break;
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}
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}
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return rev_bom;
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}
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/* determine PCB revision from model */
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char get_pcb_rev(const char *str)
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{
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char rev_pcb = 'A';
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int i;
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for (i = strlen(str) - 1; i > 0; i--) {
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if (str[i] == '-')
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break;
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if (str[i] >= 'A') {
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rev_pcb = str[i];
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break;
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}
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}
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return rev_pcb;
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}
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/*
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* get dt name based on model and detail level:
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*
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* For boards that are a combination of a SoM plus a Baseboard:
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* Venice SoM part numbers are GW70xx where xx is:
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* 7000-7019: same PCB with som dt of '0x'
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* 7020-7039: same PCB with som dt of '2x'
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* 7040-7059: same PCB with som dt of '4x'
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* 7060-7079: same PCB with som dt of '6x'
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* 7080-7099: same PCB with som dt of '8x'
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* Venice Baseboard part numbers are GW7xxx where xxx is:
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* 7100-7199: same PCB with base dt of '71xx'
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* 7200-7299: same PCB with base dt of '72xx'
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* 7300-7399: same PCB with base dt of '73xx'
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* 7400-7499: same PCB with base dt of '74xx'
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* 7500-7599: same PCB with base dt of '75xx'
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* 7600-7699: same PCB with base dt of '76xx'
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* 7700-7799: same PCB with base dt of '77xx'
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* 7800-7899: same PCB with base dt of '78xx'
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* DT name is comprised of:
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* gw<base dt>-<som dt>-[base-pcb-rev][base-bom-rev][som-pcb-rev][som-bom-rev]
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*
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* For board models from 7900-7999 each PCB is unique with its own dt:
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* DT name is comprised:
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* gw<model>-[pcb-rev][bom-rev]
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*
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*/
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#define snprintfcat(dest, sz, fmt, ...) \
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snprintf((dest) + strlen(dest), (sz) - strlen(dest), fmt, ##__VA_ARGS__)
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const char *eeprom_get_dtb_name(int level, char *buf, int sz)
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{
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#ifdef CONFIG_IMX8MM
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const char *pre = "imx8mm-venice-gw";
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#else
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const char *pre = "imx8mn-venice-gw";
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#endif
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int model, rev_pcb, rev_bom;
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model = ((som_info.model[2] - '0') * 1000)
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+ ((som_info.model[3] - '0') * 100)
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+ ((som_info.model[4] - '0') * 10)
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+ (som_info.model[5] - '0');
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rev_pcb = tolower(get_pcb_rev(som_info.model));
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rev_bom = get_bom_rev(som_info.model);
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/* som + baseboard*/
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if (base_info.model[0]) {
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/* baseboard id: 7100-7199->71; 7200-7299->72; etc */
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int base = ((base_info.model[2] - '0') * 10) + (base_info.model[3] - '0');
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/* som id: 7000-7019->1; 7020-7039->2; etc */
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int som = ((model % 100) / 20) * 2;
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int rev_base_pcb = tolower(get_pcb_rev(base_info.model));
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int rev_base_bom = get_bom_rev(base_info.model);
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snprintf(buf, sz, "%s%2dxx-%dx", pre, base, som);
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switch (level) {
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case 0: /* full model (ie gw73xx-0x-a1a1) */
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if (rev_base_bom)
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snprintfcat(buf, sz, "-%c%d", rev_base_pcb, rev_base_bom);
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else
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snprintfcat(buf, sz, "-%c", rev_base_pcb);
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if (rev_bom)
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snprintfcat(buf, sz, "%c%d", rev_pcb, rev_bom);
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else
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snprintfcat(buf, sz, "%c", rev_pcb);
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break;
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case 1: /* don't care about SoM revision */
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if (rev_base_bom)
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snprintfcat(buf, sz, "-%c%d", rev_base_pcb, rev_base_bom);
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else
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snprintfcat(buf, sz, "-%c", rev_base_pcb);
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snprintfcat(buf, sz, "xx");
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break;
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case 2: /* don't care about baseboard revision */
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snprintfcat(buf, sz, "-xx");
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if (rev_bom)
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snprintfcat(buf, sz, "%c%d", rev_pcb, rev_bom);
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else
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snprintfcat(buf, sz, "%c", rev_pcb);
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break;
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case 3: /* don't care about SoM/baseboard revision */
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break;
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default:
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return NULL;
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}
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} else {
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snprintf(buf, sz, "%s%04d", pre, model);
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switch (level) {
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case 0: /* full model wth PCB and BOM revision first (ie gw7901-a1) */
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if (rev_bom)
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snprintfcat(buf, sz, "-%c%d", rev_pcb, rev_bom);
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else
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snprintfcat(buf, sz, "-%c", rev_pcb);
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break;
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case 1: /* don't care about BOM revision */
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snprintfcat(buf, sz, "-%c", rev_pcb);
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break;
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case 2: /* don't care about PCB or BOM revision */
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break;
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default:
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return NULL;
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}
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}
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return buf;
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}
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static int eeprom_info(bool verbose)
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{
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printf("Model : %s\n", venice_model);
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printf("Serial : %d\n", som_info.serial);
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printf("MFGDate : %02x-%02x-%02x%02x\n",
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som_info.mfgdate[0], som_info.mfgdate[1],
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||||||
|
som_info.mfgdate[2], som_info.mfgdate[3]);
|
||||||
|
if (base_info.model[0] && verbose) {
|
||||||
|
printf("SOM : %s %d %02x-%02x-%02x%02x\n",
|
||||||
|
som_info.model, som_info.serial,
|
||||||
|
som_info.mfgdate[0], som_info.mfgdate[1],
|
||||||
|
som_info.mfgdate[2], som_info.mfgdate[3]);
|
||||||
|
printf("BASE : %s %d %02x-%02x-%02x%02x\n",
|
||||||
|
base_info.model, base_info.serial,
|
||||||
|
base_info.mfgdate[0], base_info.mfgdate[1],
|
||||||
|
base_info.mfgdate[2], base_info.mfgdate[3]);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int eeprom_init(int quiet)
|
||||||
|
{
|
||||||
|
char rev_pcb;
|
||||||
|
int rev_bom;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = eeprom_read(SOM_EEPROM_BUSNO, SOM_EEPROM_ADDR, 1, &som_info);
|
||||||
|
if (ret) {
|
||||||
|
puts("ERROR: Failed to probe EEPROM\n");
|
||||||
|
memset(&som_info, 0, sizeof(som_info));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* read optional baseboard EEPROM */
|
||||||
|
eeprom_read(BASEBOARD_EEPROM_BUSNO, BASEBOARD_EEPROM_ADDR, 2, &base_info);
|
||||||
|
|
||||||
|
/* create model strings */
|
||||||
|
if (base_info.model[0]) {
|
||||||
|
sprintf(venice_model, "GW%c%c%c%c-%c%c-",
|
||||||
|
som_info.model[2], /* family */
|
||||||
|
base_info.model[3], /* baseboard */
|
||||||
|
base_info.model[4], base_info.model[5], /* subload of baseboard */
|
||||||
|
som_info.model[4], som_info.model[5]); /* last 2digits of SOM */
|
||||||
|
|
||||||
|
/* baseboard revision */
|
||||||
|
rev_pcb = get_pcb_rev(base_info.model);
|
||||||
|
rev_bom = get_bom_rev(base_info.model);
|
||||||
|
if (rev_bom)
|
||||||
|
sprintf(venice_model + strlen(venice_model), "%c%d", rev_pcb, rev_bom);
|
||||||
|
else
|
||||||
|
sprintf(venice_model + strlen(venice_model), "%c", rev_pcb);
|
||||||
|
/* som revision */
|
||||||
|
rev_pcb = get_pcb_rev(som_info.model);
|
||||||
|
rev_bom = get_bom_rev(som_info.model);
|
||||||
|
if (rev_bom)
|
||||||
|
sprintf(venice_model + strlen(venice_model), "%c%d", rev_pcb, rev_bom);
|
||||||
|
else
|
||||||
|
sprintf(venice_model + strlen(venice_model), "%c", rev_pcb);
|
||||||
|
} else {
|
||||||
|
strcpy(venice_model, som_info.model);
|
||||||
|
}
|
||||||
|
venice_serial = som_info.serial;
|
||||||
|
|
||||||
|
if (!quiet)
|
||||||
|
eeprom_info(false);
|
||||||
|
|
||||||
|
return (16 << som_info.sdram_size);
|
||||||
|
}
|
||||||
|
|
||||||
|
void board_gsc_info(void)
|
||||||
|
{
|
||||||
|
eeprom_info(true);
|
||||||
|
}
|
||||||
|
|
||||||
|
const char *eeprom_get_model(void)
|
||||||
|
{
|
||||||
|
return venice_model;
|
||||||
|
}
|
||||||
|
|
||||||
|
u32 eeprom_get_serial(void)
|
||||||
|
{
|
||||||
|
return venice_serial;
|
||||||
|
}
|
||||||
|
|
@ -3,19 +3,8 @@
|
||||||
* Copyright 2021 Gateworks Corporation
|
* Copyright 2021 Gateworks Corporation
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#ifndef _GSC_H_
|
#ifndef _VENICE_EEPROM_H_
|
||||||
#define _GSC_H_
|
#define _VENICE_EEPROM_H_
|
||||||
|
|
||||||
/* I2C bus numbers */
|
|
||||||
#define GSC_BUSNO 0
|
|
||||||
#define BASEBOARD_EEPROM_BUSNO 1
|
|
||||||
|
|
||||||
/* I2C slave addresses */
|
|
||||||
#define GSC_SC_ADDR 0x20
|
|
||||||
#define GSC_RTC_ADDR 0x68
|
|
||||||
#define GSC_HWMON_ADDR 0x29
|
|
||||||
#define GSC_EEPROM_ADDR 0x51
|
|
||||||
#define BASEBOARD_EEPROM_ADDR 0x52
|
|
||||||
|
|
||||||
struct venice_board_info {
|
struct venice_board_info {
|
||||||
u8 mac[6]; /* 0x00: MAC base */
|
u8 mac[6]; /* 0x00: MAC base */
|
||||||
|
|
@ -35,11 +24,10 @@ struct venice_board_info {
|
||||||
u8 chksum[2]; /* 0x4E */
|
u8 chksum[2]; /* 0x4E */
|
||||||
};
|
};
|
||||||
|
|
||||||
int gsc_init(int quiet);
|
int eeprom_init(int quiet);
|
||||||
int gsc_hwmon(void);
|
const char *eeprom_get_model(void);
|
||||||
const char *gsc_get_model(void);
|
const char *eeprom_get_dtb_name(int level, char *buf, int len);
|
||||||
const char *gsc_get_dtb_name(int level, char *buf, int len);
|
int eeprom_getmac(int index, uint8_t *enetaddr);
|
||||||
int gsc_getmac(int index, uint8_t *enetaddr);
|
uint32_t eeprom_get_serial(void);
|
||||||
uint32_t gsc_get_serial(void);
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
@ -1,700 +0,0 @@
|
||||||
// SPDX-License-Identifier: GPL-2.0+
|
|
||||||
/*
|
|
||||||
* Copyright 2021 Gateworks Corporation
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <common.h>
|
|
||||||
#include <command.h>
|
|
||||||
#include <hang.h>
|
|
||||||
#include <hexdump.h>
|
|
||||||
#include <i2c.h>
|
|
||||||
#include <linux/delay.h>
|
|
||||||
#include <dm/uclass.h>
|
|
||||||
|
|
||||||
#include "gsc.h"
|
|
||||||
|
|
||||||
DECLARE_GLOBAL_DATA_PTR;
|
|
||||||
|
|
||||||
struct venice_board_info som_info;
|
|
||||||
struct venice_board_info base_info;
|
|
||||||
char venice_model[32];
|
|
||||||
uint32_t venice_serial;
|
|
||||||
|
|
||||||
/* return a mac address from EEPROM info */
|
|
||||||
int gsc_getmac(int index, uint8_t *address)
|
|
||||||
{
|
|
||||||
int i, j;
|
|
||||||
u32 maclow, machigh;
|
|
||||||
u64 mac;
|
|
||||||
|
|
||||||
j = 0;
|
|
||||||
if (som_info.macno) {
|
|
||||||
maclow = som_info.mac[5];
|
|
||||||
maclow |= som_info.mac[4] << 8;
|
|
||||||
maclow |= som_info.mac[3] << 16;
|
|
||||||
maclow |= som_info.mac[2] << 24;
|
|
||||||
machigh = som_info.mac[1];
|
|
||||||
machigh |= som_info.mac[0] << 8;
|
|
||||||
mac = machigh;
|
|
||||||
mac <<= 32;
|
|
||||||
mac |= maclow;
|
|
||||||
for (i = 0; i < som_info.macno; i++, j++) {
|
|
||||||
if (index == j)
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
maclow = base_info.mac[5];
|
|
||||||
maclow |= base_info.mac[4] << 8;
|
|
||||||
maclow |= base_info.mac[3] << 16;
|
|
||||||
maclow |= base_info.mac[2] << 24;
|
|
||||||
machigh = base_info.mac[1];
|
|
||||||
machigh |= base_info.mac[0] << 8;
|
|
||||||
mac = machigh;
|
|
||||||
mac <<= 32;
|
|
||||||
mac |= maclow;
|
|
||||||
for (i = 0; i < base_info.macno; i++, j++) {
|
|
||||||
if (index == j)
|
|
||||||
goto out;
|
|
||||||
}
|
|
||||||
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
out:
|
|
||||||
mac += i;
|
|
||||||
address[0] = (mac >> 40) & 0xff;
|
|
||||||
address[1] = (mac >> 32) & 0xff;
|
|
||||||
address[2] = (mac >> 24) & 0xff;
|
|
||||||
address[3] = (mac >> 16) & 0xff;
|
|
||||||
address[4] = (mac >> 8) & 0xff;
|
|
||||||
address[5] = (mac >> 0) & 0xff;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* System Controller registers */
|
|
||||||
enum {
|
|
||||||
GSC_SC_CTRL0 = 0,
|
|
||||||
GSC_SC_CTRL1 = 1,
|
|
||||||
GSC_SC_STATUS = 10,
|
|
||||||
GSC_SC_FWCRC = 12,
|
|
||||||
GSC_SC_FWVER = 14,
|
|
||||||
GSC_SC_WP = 15,
|
|
||||||
GSC_SC_RST_CAUSE = 16,
|
|
||||||
GSC_SC_THERM_PROTECT = 19,
|
|
||||||
};
|
|
||||||
|
|
||||||
/* System Controller Control1 bits */
|
|
||||||
enum {
|
|
||||||
GSC_SC_CTRL1_WDTIME = 4, /* 1 = 60s timeout, 0 = 30s timeout */
|
|
||||||
GSC_SC_CTRL1_WDEN = 5, /* 1 = enable, 0 = disable */
|
|
||||||
GSC_SC_CTRL1_BOOT_CHK = 6, /* 1 = enable alt boot check */
|
|
||||||
GSC_SC_CTRL1_WDDIS = 7, /* 1 = disable boot watchdog */
|
|
||||||
};
|
|
||||||
|
|
||||||
/* System Controller Interrupt bits */
|
|
||||||
enum {
|
|
||||||
GSC_SC_IRQ_PB = 0, /* Pushbutton switch */
|
|
||||||
GSC_SC_IRQ_SECURE = 1, /* Secure Key erase operation complete */
|
|
||||||
GSC_SC_IRQ_EEPROM_WP = 2, /* EEPROM write violation */
|
|
||||||
GSC_SC_IRQ_GPIO = 4, /* GPIO change */
|
|
||||||
GSC_SC_IRQ_TAMPER = 5, /* Tamper detect */
|
|
||||||
GSC_SC_IRQ_WATCHDOG = 6, /* Watchdog trip */
|
|
||||||
GSC_SC_IRQ_PBLONG = 7, /* Pushbutton long hold */
|
|
||||||
};
|
|
||||||
|
|
||||||
/* System Controller WP bits */
|
|
||||||
enum {
|
|
||||||
GSC_SC_WP_ALL = 0, /* Write Protect All EEPROM regions */
|
|
||||||
GSC_SC_WP_BOARDINFO = 1, /* Write Protect Board Info region */
|
|
||||||
};
|
|
||||||
|
|
||||||
/* System Controller Reset Cause */
|
|
||||||
enum {
|
|
||||||
GSC_SC_RST_CAUSE_VIN = 0,
|
|
||||||
GSC_SC_RST_CAUSE_PB = 1,
|
|
||||||
GSC_SC_RST_CAUSE_WDT = 2,
|
|
||||||
GSC_SC_RST_CAUSE_CPU = 3,
|
|
||||||
GSC_SC_RST_CAUSE_TEMP_LOCAL = 4,
|
|
||||||
GSC_SC_RST_CAUSE_TEMP_REMOTE = 5,
|
|
||||||
GSC_SC_RST_CAUSE_SLEEP = 6,
|
|
||||||
GSC_SC_RST_CAUSE_BOOT_WDT = 7,
|
|
||||||
GSC_SC_RST_CAUSE_BOOT_WDT_MAN = 8,
|
|
||||||
GSC_SC_RST_CAUSE_SOFT_PWR = 9,
|
|
||||||
GSC_SC_RST_CAUSE_MAX = 10,
|
|
||||||
};
|
|
||||||
|
|
||||||
#include <dm/device.h>
|
|
||||||
static struct udevice *gsc_get_dev(int busno, int slave)
|
|
||||||
{
|
|
||||||
struct udevice *dev, *bus;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
ret = uclass_get_device_by_seq(UCLASS_I2C, busno, &bus);
|
|
||||||
if (ret) {
|
|
||||||
printf("GSC : failed I2C%d probe: %d\n", busno, ret);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
ret = dm_i2c_probe(bus, slave, 0, &dev);
|
|
||||||
if (ret)
|
|
||||||
return NULL;
|
|
||||||
|
|
||||||
return dev;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int gsc_read_eeprom(int bus, int slave, int alen, struct venice_board_info *info)
|
|
||||||
{
|
|
||||||
int i;
|
|
||||||
int chksum;
|
|
||||||
unsigned char *buf = (unsigned char *)info;
|
|
||||||
struct udevice *dev;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
/* probe device */
|
|
||||||
dev = gsc_get_dev(bus, slave);
|
|
||||||
if (!dev) {
|
|
||||||
if (slave == GSC_EEPROM_ADDR)
|
|
||||||
puts("ERROR: Failed to probe EEPROM\n");
|
|
||||||
return -ENODEV;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* read eeprom config section */
|
|
||||||
memset(info, 0, sizeof(*info));
|
|
||||||
ret = i2c_set_chip_offset_len(dev, alen);
|
|
||||||
if (ret) {
|
|
||||||
puts("EEPROM: Failed to set alen\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
ret = dm_i2c_read(dev, 0x00, buf, sizeof(*info));
|
|
||||||
if (ret) {
|
|
||||||
if (slave == GSC_EEPROM_ADDR)
|
|
||||||
printf("EEPROM: Failed to read EEPROM\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* validate checksum */
|
|
||||||
for (chksum = 0, i = 0; i < (int)sizeof(*info) - 2; i++)
|
|
||||||
chksum += buf[i];
|
|
||||||
if ((info->chksum[0] != chksum >> 8) ||
|
|
||||||
(info->chksum[1] != (chksum & 0xff))) {
|
|
||||||
printf("EEPROM: I2C%d@0x%02x: Invalid Checksum\n", bus, slave);
|
|
||||||
print_hex_dump_bytes("", DUMP_PREFIX_NONE, buf, sizeof(*info));
|
|
||||||
memset(info, 0, sizeof(*info));
|
|
||||||
return -EINVAL;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* sanity check valid model */
|
|
||||||
if (info->model[0] != 'G' || info->model[1] != 'W') {
|
|
||||||
printf("EEPROM: I2C%d@0x%02x: Invalid Model in EEPROM\n", bus, slave);
|
|
||||||
print_hex_dump_bytes("", DUMP_PREFIX_NONE, buf, sizeof(*info));
|
|
||||||
memset(info, 0, sizeof(*info));
|
|
||||||
return -EINVAL;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static const char *gsc_get_rst_cause(struct udevice *dev)
|
|
||||||
{
|
|
||||||
static char str[64];
|
|
||||||
static const char * const names[] = {
|
|
||||||
"VIN",
|
|
||||||
"PB",
|
|
||||||
"WDT",
|
|
||||||
"CPU",
|
|
||||||
"TEMP_L",
|
|
||||||
"TEMP_R",
|
|
||||||
"SLEEP",
|
|
||||||
"BOOT_WDT1",
|
|
||||||
"BOOT_WDT2",
|
|
||||||
"SOFT_PWR",
|
|
||||||
};
|
|
||||||
unsigned char reg;
|
|
||||||
|
|
||||||
/* reset cause */
|
|
||||||
str[0] = 0;
|
|
||||||
if (!dm_i2c_read(dev, GSC_SC_RST_CAUSE, ®, 1)) {
|
|
||||||
if (reg < ARRAY_SIZE(names))
|
|
||||||
sprintf(str, "%s", names[reg]);
|
|
||||||
else
|
|
||||||
sprintf(str, "0x%02x", reg);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* thermal protection */
|
|
||||||
if (!dm_i2c_read(dev, GSC_SC_THERM_PROTECT, ®, 1)) {
|
|
||||||
strcat(str, " Thermal Protection ");
|
|
||||||
if (reg & BIT(0))
|
|
||||||
strcat(str, "Enabled");
|
|
||||||
else
|
|
||||||
strcat(str, "Disabled");
|
|
||||||
}
|
|
||||||
|
|
||||||
return str;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* display hardware monitor ADC channels */
|
|
||||||
int gsc_hwmon(void)
|
|
||||||
{
|
|
||||||
const void *fdt = gd->fdt_blob;
|
|
||||||
struct udevice *dev;
|
|
||||||
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;
|
|
||||||
|
|
||||||
/* probe device */
|
|
||||||
dev = gsc_get_dev(GSC_BUSNO, GSC_HWMON_ADDR);
|
|
||||||
if (!dev) {
|
|
||||||
puts("ERROR: Failed to probe GSC HWMON\n");
|
|
||||||
return -ENODEV;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* 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 = dm_i2c_read(dev, reg, buf, sizeof(buf));
|
|
||||||
if (ret) {
|
|
||||||
printf("i2c error: %d\n", ret);
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* 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:
|
|
||||||
*
|
|
||||||
* For boards that are a combination of a SoM plus a Baseboard:
|
|
||||||
* Venice SoM part numbers are GW70xx where xx is:
|
|
||||||
* 7000-7019: same PCB with som dt of '0x'
|
|
||||||
* 7020-7039: same PCB with som dt of '2x'
|
|
||||||
* 7040-7059: same PCB with som dt of '4x'
|
|
||||||
* 7060-7079: same PCB with som dt of '6x'
|
|
||||||
* 7080-7099: same PCB with som dt of '8x'
|
|
||||||
* Venice Baseboard part numbers are GW7xxx where xxx is:
|
|
||||||
* 7100-7199: same PCB with base dt of '71xx'
|
|
||||||
* 7200-7299: same PCB with base dt of '72xx'
|
|
||||||
* 7300-7399: same PCB with base dt of '73xx'
|
|
||||||
* 7400-7499: same PCB with base dt of '74xx'
|
|
||||||
* 7500-7599: same PCB with base dt of '75xx'
|
|
||||||
* 7600-7699: same PCB with base dt of '76xx'
|
|
||||||
* 7700-7799: same PCB with base dt of '77xx'
|
|
||||||
* 7800-7899: same PCB with base dt of '78xx'
|
|
||||||
* DT name is comprised of:
|
|
||||||
* gw<base dt>-<som dt>-[base-pcb-rev][base-bom-rev][som-pcb-rev][som-bom-rev]
|
|
||||||
*
|
|
||||||
* For board models from 7900-7999 each PCB is unique with its own dt:
|
|
||||||
* DT name is comprised:
|
|
||||||
* gw<model>-[pcb-rev][bom-rev]
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
#define snprintfcat(dest, sz, fmt, ...) \
|
|
||||||
snprintf((dest) + strlen(dest), (sz) - strlen(dest), fmt, ##__VA_ARGS__)
|
|
||||||
const char *gsc_get_dtb_name(int level, char *buf, int sz)
|
|
||||||
{
|
|
||||||
#ifdef CONFIG_IMX8MM
|
|
||||||
const char *pre = "imx8mm-venice-gw";
|
|
||||||
#else
|
|
||||||
const char *pre = "imx8mn-venice-gw";
|
|
||||||
#endif
|
|
||||||
int model, rev_pcb, rev_bom;
|
|
||||||
|
|
||||||
model = ((som_info.model[2] - '0') * 1000)
|
|
||||||
+ ((som_info.model[3] - '0') * 100)
|
|
||||||
+ ((som_info.model[4] - '0') * 10)
|
|
||||||
+ (som_info.model[5] - '0');
|
|
||||||
rev_pcb = tolower(get_pcb_rev(som_info.model));
|
|
||||||
rev_bom = get_bom_rev(som_info.model);
|
|
||||||
|
|
||||||
/* som + baseboard*/
|
|
||||||
if (base_info.model[0]) {
|
|
||||||
/* baseboard id: 7100-7199->71; 7200-7299->72; etc */
|
|
||||||
int base = ((base_info.model[2] - '0') * 10) + (base_info.model[3] - '0');
|
|
||||||
/* som id: 7000-7019->1; 7020-7039->2; etc */
|
|
||||||
int som = ((model % 100) / 20) * 2;
|
|
||||||
int rev_base_pcb = tolower(get_pcb_rev(base_info.model));
|
|
||||||
int rev_base_bom = get_bom_rev(base_info.model);
|
|
||||||
|
|
||||||
snprintf(buf, sz, "%s%2dxx-%dx", pre, base, som);
|
|
||||||
switch (level) {
|
|
||||||
case 0: /* full model (ie gw73xx-0x-a1a1) */
|
|
||||||
if (rev_base_bom)
|
|
||||||
snprintfcat(buf, sz, "-%c%d", rev_base_pcb, rev_base_bom);
|
|
||||||
else
|
|
||||||
snprintfcat(buf, sz, "-%c", rev_base_pcb);
|
|
||||||
if (rev_bom)
|
|
||||||
snprintfcat(buf, sz, "%c%d", rev_pcb, rev_bom);
|
|
||||||
else
|
|
||||||
snprintfcat(buf, sz, "%c", rev_pcb);
|
|
||||||
break;
|
|
||||||
case 1: /* don't care about SoM revision */
|
|
||||||
if (rev_base_bom)
|
|
||||||
snprintfcat(buf, sz, "-%c%d", rev_base_pcb, rev_base_bom);
|
|
||||||
else
|
|
||||||
snprintfcat(buf, sz, "-%c", rev_base_pcb);
|
|
||||||
snprintfcat(buf, sz, "xx");
|
|
||||||
break;
|
|
||||||
case 2: /* don't care about baseboard revision */
|
|
||||||
snprintfcat(buf, sz, "-xx");
|
|
||||||
if (rev_bom)
|
|
||||||
snprintfcat(buf, sz, "%c%d", rev_pcb, rev_bom);
|
|
||||||
else
|
|
||||||
snprintfcat(buf, sz, "%c", rev_pcb);
|
|
||||||
break;
|
|
||||||
case 3: /* don't care about SoM/baseboard revision */
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
snprintf(buf, sz, "%s%04d", pre, model);
|
|
||||||
switch (level) {
|
|
||||||
case 0: /* full model wth PCB and BOM revision first (ie gw7901-a1) */
|
|
||||||
if (rev_bom)
|
|
||||||
snprintfcat(buf, sz, "-%c%d", rev_pcb, rev_bom);
|
|
||||||
else
|
|
||||||
snprintfcat(buf, sz, "-%c", rev_pcb);
|
|
||||||
break;
|
|
||||||
case 1: /* don't care about BOM revision */
|
|
||||||
snprintfcat(buf, sz, "-%c", rev_pcb);
|
|
||||||
break;
|
|
||||||
case 2: /* don't care about PCB or BOM revision */
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return buf;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int gsc_read(void)
|
|
||||||
{
|
|
||||||
char rev_pcb;
|
|
||||||
int rev_bom;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
ret = gsc_read_eeprom(GSC_BUSNO, GSC_EEPROM_ADDR, 1, &som_info);
|
|
||||||
if (ret) {
|
|
||||||
memset(&som_info, 0, sizeof(som_info));
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* read optional baseboard EEPROM */
|
|
||||||
gsc_read_eeprom(BASEBOARD_EEPROM_BUSNO, BASEBOARD_EEPROM_ADDR,
|
|
||||||
2, &base_info);
|
|
||||||
|
|
||||||
/* create model strings */
|
|
||||||
if (base_info.model[0]) {
|
|
||||||
sprintf(venice_model, "GW%c%c%c%c-%c%c-",
|
|
||||||
som_info.model[2], /* family */
|
|
||||||
base_info.model[3], /* baseboard */
|
|
||||||
base_info.model[4], base_info.model[5], /* subload of baseboard */
|
|
||||||
som_info.model[4], som_info.model[5]); /* last 2digits of SOM */
|
|
||||||
|
|
||||||
/* baseboard revision */
|
|
||||||
rev_pcb = get_pcb_rev(base_info.model);
|
|
||||||
rev_bom = get_bom_rev(base_info.model);
|
|
||||||
if (rev_bom)
|
|
||||||
sprintf(venice_model + strlen(venice_model), "%c%d", rev_pcb, rev_bom);
|
|
||||||
else
|
|
||||||
sprintf(venice_model + strlen(venice_model), "%c", rev_pcb);
|
|
||||||
/* som revision */
|
|
||||||
rev_pcb = get_pcb_rev(som_info.model);
|
|
||||||
rev_bom = get_bom_rev(som_info.model);
|
|
||||||
if (rev_bom)
|
|
||||||
sprintf(venice_model + strlen(venice_model), "%c%d", rev_pcb, rev_bom);
|
|
||||||
else
|
|
||||||
sprintf(venice_model + strlen(venice_model), "%c", rev_pcb);
|
|
||||||
} else {
|
|
||||||
strcpy(venice_model, som_info.model);
|
|
||||||
}
|
|
||||||
venice_serial = som_info.serial;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int gsc_info(int verbose)
|
|
||||||
{
|
|
||||||
struct udevice *dev;
|
|
||||||
unsigned char buf[16];
|
|
||||||
|
|
||||||
printf("Model : %s\n", venice_model);
|
|
||||||
printf("Serial : %d\n", som_info.serial);
|
|
||||||
printf("MFGDate : %02x-%02x-%02x%02x\n",
|
|
||||||
som_info.mfgdate[0], som_info.mfgdate[1],
|
|
||||||
som_info.mfgdate[2], som_info.mfgdate[3]);
|
|
||||||
if (base_info.model[0] && verbose > 1) {
|
|
||||||
printf("SOM : %s %d %02x-%02x-%02x%02x\n",
|
|
||||||
som_info.model, som_info.serial,
|
|
||||||
som_info.mfgdate[0], som_info.mfgdate[1],
|
|
||||||
som_info.mfgdate[2], som_info.mfgdate[3]);
|
|
||||||
printf("BASE : %s %d %02x-%02x-%02x%02x\n",
|
|
||||||
base_info.model, base_info.serial,
|
|
||||||
base_info.mfgdate[0], base_info.mfgdate[1],
|
|
||||||
base_info.mfgdate[2], base_info.mfgdate[3]);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Display RTC */
|
|
||||||
puts("RTC : ");
|
|
||||||
dev = gsc_get_dev(GSC_BUSNO, GSC_RTC_ADDR);
|
|
||||||
if (!dev) {
|
|
||||||
puts("Failed to probe GSC RTC\n");
|
|
||||||
} else {
|
|
||||||
dm_i2c_read(dev, 0, buf, 6);
|
|
||||||
printf("%d\n", buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Display hwmon */
|
|
||||||
gsc_hwmon();
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
int gsc_init(int quiet)
|
|
||||||
{
|
|
||||||
unsigned char buf[16];
|
|
||||||
struct udevice *dev;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
/*
|
|
||||||
* On a board with a missing/depleted backup battery for GSC, the
|
|
||||||
* board may be ready to probe the GSC before its firmware is
|
|
||||||
* running. We will wait here indefinately for the GSC/EEPROM.
|
|
||||||
*/
|
|
||||||
#ifdef CONFIG_IMX8MN
|
|
||||||
// TODO:
|
|
||||||
// IMX8MN boots quicker than IMX8MM and exposes issue
|
|
||||||
// where because GSC I2C state machine isn't running and its
|
|
||||||
// SCL/SDA are driven low spams i2c errors
|
|
||||||
//
|
|
||||||
// Put a loop here that somehow waits for I2C CLK/DAT to be high
|
|
||||||
mdelay(40);
|
|
||||||
#endif
|
|
||||||
while (1) {
|
|
||||||
/* probe device */
|
|
||||||
dev = gsc_get_dev(GSC_BUSNO, GSC_SC_ADDR);
|
|
||||||
if (dev)
|
|
||||||
break;
|
|
||||||
mdelay(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = dm_i2c_read(dev, 0, buf, sizeof(buf));
|
|
||||||
if (ret) {
|
|
||||||
puts("ERROR: Failed reading GSC\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
gsc_read();
|
|
||||||
|
|
||||||
/* banner */
|
|
||||||
if (!quiet) {
|
|
||||||
printf("GSC : v%d 0x%04x", buf[GSC_SC_FWVER],
|
|
||||||
buf[GSC_SC_FWCRC] | buf[GSC_SC_FWCRC + 1] << 8);
|
|
||||||
printf(" RST:%s", gsc_get_rst_cause(dev));
|
|
||||||
printf("\n");
|
|
||||||
gsc_info(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (ret)
|
|
||||||
hang();
|
|
||||||
|
|
||||||
return (16 << som_info.sdram_size);
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *gsc_get_model(void)
|
|
||||||
{
|
|
||||||
return venice_model;
|
|
||||||
}
|
|
||||||
|
|
||||||
uint32_t gsc_get_serial(void)
|
|
||||||
{
|
|
||||||
return venice_serial;
|
|
||||||
}
|
|
||||||
|
|
||||||
#if !(IS_ENABLED(CONFIG_SPL_BUILD))
|
|
||||||
static int gsc_sleep(unsigned long secs)
|
|
||||||
{
|
|
||||||
unsigned char reg;
|
|
||||||
struct udevice *dev;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
/* probe device */
|
|
||||||
dev = gsc_get_dev(GSC_BUSNO, GSC_SC_ADDR);
|
|
||||||
if (!dev)
|
|
||||||
return -ENODEV;
|
|
||||||
|
|
||||||
printf("GSC Sleeping for %ld seconds\n", secs);
|
|
||||||
reg = (secs >> 24) & 0xff;
|
|
||||||
ret = dm_i2c_write(dev, 9, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg = (secs >> 16) & 0xff;
|
|
||||||
ret = dm_i2c_write(dev, 8, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg = (secs >> 8) & 0xff;
|
|
||||||
ret = dm_i2c_write(dev, 7, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg = secs & 0xff;
|
|
||||||
ret = dm_i2c_write(dev, 6, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
ret = dm_i2c_read(dev, GSC_SC_CTRL1, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg |= (1 << 2);
|
|
||||||
ret = dm_i2c_write(dev, GSC_SC_CTRL1, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg &= ~(1 << 2);
|
|
||||||
reg |= 0x3;
|
|
||||||
ret = dm_i2c_write(dev, GSC_SC_CTRL1, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
err:
|
|
||||||
printf("i2c error\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int gsc_boot_wd_disable(void)
|
|
||||||
{
|
|
||||||
u8 reg;
|
|
||||||
struct udevice *dev;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
/* probe device */
|
|
||||||
dev = gsc_get_dev(GSC_BUSNO, GSC_SC_ADDR);
|
|
||||||
if (!dev)
|
|
||||||
return -ENODEV;
|
|
||||||
|
|
||||||
ret = dm_i2c_read(dev, GSC_SC_CTRL1, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
reg |= (1 << GSC_SC_CTRL1_WDDIS);
|
|
||||||
reg &= ~(1 << GSC_SC_CTRL1_BOOT_CHK);
|
|
||||||
ret = dm_i2c_write(dev, GSC_SC_CTRL1, ®, 1);
|
|
||||||
if (ret)
|
|
||||||
goto err;
|
|
||||||
puts("GSC : boot watchdog disabled\n");
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
err:
|
|
||||||
printf("i2c error");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int do_gsc(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
|
|
||||||
{
|
|
||||||
if (argc < 2)
|
|
||||||
return gsc_info(2);
|
|
||||||
|
|
||||||
if (strcasecmp(argv[1], "sleep") == 0) {
|
|
||||||
if (argc < 3)
|
|
||||||
return CMD_RET_USAGE;
|
|
||||||
if (!gsc_sleep(dectoul(argv[2], NULL)))
|
|
||||||
return CMD_RET_SUCCESS;
|
|
||||||
} else if (strcasecmp(argv[1], "hwmon") == 0) {
|
|
||||||
if (!gsc_hwmon())
|
|
||||||
return CMD_RET_SUCCESS;
|
|
||||||
} else if (strcasecmp(argv[1], "wd-disable") == 0) {
|
|
||||||
if (!gsc_boot_wd_disable())
|
|
||||||
return CMD_RET_SUCCESS;
|
|
||||||
}
|
|
||||||
|
|
||||||
return CMD_RET_USAGE;
|
|
||||||
}
|
|
||||||
|
|
||||||
U_BOOT_CMD(gsc, 4, 1, do_gsc, "Gateworks System Controller",
|
|
||||||
"[sleep <secs>]|[hwmon]|[wd-disable]\n");
|
|
||||||
#endif
|
|
||||||
|
|
@ -7,13 +7,9 @@
|
||||||
#include <cpu_func.h>
|
#include <cpu_func.h>
|
||||||
#include <hang.h>
|
#include <hang.h>
|
||||||
#include <i2c.h>
|
#include <i2c.h>
|
||||||
#include <image.h>
|
|
||||||
#include <init.h>
|
#include <init.h>
|
||||||
#include <log.h>
|
|
||||||
#include <spl.h>
|
#include <spl.h>
|
||||||
#include <asm/io.h>
|
|
||||||
#include <asm/mach-imx/gpio.h>
|
#include <asm/mach-imx/gpio.h>
|
||||||
#include <asm/mach-imx/iomux-v3.h>
|
|
||||||
#include <asm/arch/clock.h>
|
#include <asm/arch/clock.h>
|
||||||
#include <asm/arch/imx8mm_pins.h>
|
#include <asm/arch/imx8mm_pins.h>
|
||||||
#include <asm/arch/imx8mn_pins.h>
|
#include <asm/arch/imx8mn_pins.h>
|
||||||
|
|
@ -21,22 +17,17 @@
|
||||||
#include <asm/mach-imx/boot_mode.h>
|
#include <asm/mach-imx/boot_mode.h>
|
||||||
#include <asm/arch/ddr.h>
|
#include <asm/arch/ddr.h>
|
||||||
#include <asm-generic/gpio.h>
|
#include <asm-generic/gpio.h>
|
||||||
|
|
||||||
#include <dm/uclass.h>
|
#include <dm/uclass.h>
|
||||||
#include <dm/device.h>
|
#include <dm/device.h>
|
||||||
#include <dm/uclass-internal.h>
|
#include <linux/delay.h>
|
||||||
#include <dm/device-internal.h>
|
|
||||||
|
|
||||||
#include <power/bd71837.h>
|
#include <power/bd71837.h>
|
||||||
#include <power/mp5416.h>
|
#include <power/mp5416.h>
|
||||||
|
|
||||||
#include "gsc.h"
|
#include "eeprom.h"
|
||||||
#include "lpddr4_timing.h"
|
#include "lpddr4_timing.h"
|
||||||
|
|
||||||
#define PCIE_RSTN IMX_GPIO_NR(4, 6)
|
#define PCIE_RSTN IMX_GPIO_NR(4, 6)
|
||||||
|
|
||||||
DECLARE_GLOBAL_DATA_PTR;
|
|
||||||
|
|
||||||
static void spl_dram_init(int size)
|
static void spl_dram_init(int size)
|
||||||
{
|
{
|
||||||
struct dram_timing_info *dram_timing;
|
struct dram_timing_info *dram_timing;
|
||||||
|
|
@ -65,8 +56,8 @@ static void spl_dram_init(int size)
|
||||||
dram_timing = &dram_timing_1gb_single_die;
|
dram_timing = &dram_timing_1gb_single_die;
|
||||||
break;
|
break;
|
||||||
case 2048:
|
case 2048:
|
||||||
if (!strcmp(gsc_get_model(), "GW7902-SP466-A") ||
|
if (!strcmp(eeprom_get_model(), "GW7902-SP466-A") ||
|
||||||
!strcmp(gsc_get_model(), "GW7902-SP466-B")) {
|
!strcmp(eeprom_get_model(), "GW7902-SP466-B")) {
|
||||||
dram_timing = &dram_timing_2gb_dual_die;
|
dram_timing = &dram_timing_2gb_dual_die;
|
||||||
} else {
|
} else {
|
||||||
dram_timing = &dram_timing_2gb_single_die;
|
dram_timing = &dram_timing_2gb_single_die;
|
||||||
|
|
@ -149,7 +140,7 @@ static int dm_i2c_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set)
|
||||||
|
|
||||||
static int power_init_board(void)
|
static int power_init_board(void)
|
||||||
{
|
{
|
||||||
const char *model = gsc_get_model();
|
const char *model = eeprom_get_model();
|
||||||
struct udevice *bus;
|
struct udevice *bus;
|
||||||
struct udevice *dev;
|
struct udevice *dev;
|
||||||
int ret;
|
int ret;
|
||||||
|
|
@ -243,22 +234,36 @@ void board_init_f(ulong dummy)
|
||||||
hang();
|
hang();
|
||||||
}
|
}
|
||||||
|
|
||||||
ret = uclass_get_device_by_name(UCLASS_CLK,
|
|
||||||
"clock-controller@30380000",
|
|
||||||
&dev);
|
|
||||||
if (ret < 0) {
|
|
||||||
printf("Failed to find clock node. Check device tree\n");
|
|
||||||
hang();
|
|
||||||
}
|
|
||||||
|
|
||||||
enable_tzc380();
|
enable_tzc380();
|
||||||
|
|
||||||
/* need to hold PCIe switch in reset otherwise it can lock i2c bus EEPROM is on */
|
/* need to hold PCIe switch in reset otherwise it can lock i2c bus EEPROM is on */
|
||||||
gpio_request(PCIE_RSTN, "perst#");
|
gpio_request(PCIE_RSTN, "perst#");
|
||||||
gpio_direction_output(PCIE_RSTN, 0);
|
gpio_direction_output(PCIE_RSTN, 0);
|
||||||
|
|
||||||
/* GSC */
|
/*
|
||||||
dram_sz = gsc_init(0);
|
* probe GSC device
|
||||||
|
*
|
||||||
|
* On a board with a missing/depleted backup battery for GSC, the
|
||||||
|
* board may be ready to probe the GSC before its firmware is
|
||||||
|
* running. We will wait here indefinately for the GSC EEPROM.
|
||||||
|
*/
|
||||||
|
#ifdef CONFIG_IMX8MN
|
||||||
|
/*
|
||||||
|
* IMX8MN boots quicker than IMX8MM and exposes issue
|
||||||
|
* where because GSC I2C state machine isn't running and its
|
||||||
|
* SCL/SDA are driven low the I2C driver spams 'Arbitration lost'
|
||||||
|
* I2C errors.
|
||||||
|
*
|
||||||
|
* TODO: Put a loop here that somehow waits for I2C CLK/DAT to be high
|
||||||
|
*/
|
||||||
|
mdelay(50);
|
||||||
|
#endif
|
||||||
|
while (1) {
|
||||||
|
if (!uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(gsc), &dev))
|
||||||
|
break;
|
||||||
|
mdelay(1);
|
||||||
|
}
|
||||||
|
dram_sz = eeprom_init(0);
|
||||||
|
|
||||||
/* PMIC */
|
/* PMIC */
|
||||||
power_init_board();
|
power_init_board();
|
||||||
|
|
|
||||||
|
|
@ -3,21 +3,12 @@
|
||||||
* Copyright 2021 Gateworks Corporation
|
* Copyright 2021 Gateworks Corporation
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <common.h>
|
|
||||||
#include <init.h>
|
#include <init.h>
|
||||||
#include <led.h>
|
#include <led.h>
|
||||||
#include <linux/delay.h>
|
|
||||||
#include <miiphy.h>
|
#include <miiphy.h>
|
||||||
#include <netdev.h>
|
|
||||||
|
|
||||||
#include <asm/arch/clock.h>
|
|
||||||
#include <asm/arch/sys_proto.h>
|
#include <asm/arch/sys_proto.h>
|
||||||
#include <asm/io.h>
|
|
||||||
#include <asm/unaligned.h>
|
|
||||||
|
|
||||||
#include "gsc.h"
|
#include "eeprom.h"
|
||||||
|
|
||||||
DECLARE_GLOBAL_DATA_PTR;
|
|
||||||
|
|
||||||
int board_phys_sdram_size(phys_size_t *size)
|
int board_phys_sdram_size(phys_size_t *size)
|
||||||
{
|
{
|
||||||
|
|
@ -37,7 +28,7 @@ int board_fit_config_name_match(const char *name)
|
||||||
char buf[32];
|
char buf[32];
|
||||||
|
|
||||||
do {
|
do {
|
||||||
dtb = gsc_get_dtb_name(i++, buf, sizeof(buf));
|
dtb = eeprom_get_dtb_name(i++, buf, sizeof(buf));
|
||||||
if (!strcmp(dtb, name)) {
|
if (!strcmp(dtb, name)) {
|
||||||
if (!init++)
|
if (!init++)
|
||||||
printf("DTB : %s\n", name);
|
printf("DTB : %s\n", name);
|
||||||
|
|
@ -100,13 +91,11 @@ int board_phy_config(struct phy_device *phydev)
|
||||||
|
|
||||||
int board_init(void)
|
int board_init(void)
|
||||||
{
|
{
|
||||||
gsc_init(1);
|
eeprom_init(1);
|
||||||
|
|
||||||
if (IS_ENABLED(CONFIG_FEC_MXC))
|
if (IS_ENABLED(CONFIG_FEC_MXC))
|
||||||
setup_fec();
|
setup_fec();
|
||||||
|
|
||||||
gsc_hwmon();
|
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -122,13 +111,13 @@ int board_late_init(void)
|
||||||
|
|
||||||
/* Set board serial/model */
|
/* Set board serial/model */
|
||||||
if (!env_get("serial#"))
|
if (!env_get("serial#"))
|
||||||
env_set_ulong("serial#", gsc_get_serial());
|
env_set_ulong("serial#", eeprom_get_serial());
|
||||||
env_set("model", gsc_get_model());
|
env_set("model", eeprom_get_model());
|
||||||
|
|
||||||
/* Set fdt_file vars */
|
/* Set fdt_file vars */
|
||||||
i = 0;
|
i = 0;
|
||||||
do {
|
do {
|
||||||
str = gsc_get_dtb_name(i, fdt, sizeof(fdt));
|
str = eeprom_get_dtb_name(i, fdt, sizeof(fdt));
|
||||||
if (str) {
|
if (str) {
|
||||||
sprintf(env, "fdt_file%d", i + 1);
|
sprintf(env, "fdt_file%d", i + 1);
|
||||||
strcat(fdt, ".dtb");
|
strcat(fdt, ".dtb");
|
||||||
|
|
@ -146,7 +135,7 @@ int board_late_init(void)
|
||||||
sprintf(env, "ethaddr");
|
sprintf(env, "ethaddr");
|
||||||
str = env_get(env);
|
str = env_get(env);
|
||||||
if (!str) {
|
if (!str) {
|
||||||
ret = gsc_getmac(i, enetaddr);
|
ret = eeprom_getmac(i, enetaddr);
|
||||||
if (!ret)
|
if (!ret)
|
||||||
eth_env_set_enetaddr(env, enetaddr);
|
eth_env_set_enetaddr(env, enetaddr);
|
||||||
}
|
}
|
||||||
|
|
@ -166,7 +155,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
|
||||||
int off;
|
int off;
|
||||||
|
|
||||||
/* set board model dt prop */
|
/* set board model dt prop */
|
||||||
fdt_setprop_string(blob, 0, "board", gsc_get_model());
|
fdt_setprop_string(blob, 0, "board", eeprom_get_model());
|
||||||
|
|
||||||
/* update temp thresholds */
|
/* update temp thresholds */
|
||||||
off = fdt_path_offset(blob, "/thermal-zones/cpu-thermal/trips");
|
off = fdt_path_offset(blob, "/thermal-zones/cpu-thermal/trips");
|
||||||
|
|
|
||||||
|
|
@ -13,6 +13,7 @@ CONFIG_SPL_TEXT_BASE=0x912000
|
||||||
CONFIG_TARGET_IMX8MN_VENICE=y
|
CONFIG_TARGET_IMX8MN_VENICE=y
|
||||||
CONFIG_SPL_MMC=y
|
CONFIG_SPL_MMC=y
|
||||||
CONFIG_SPL_SERIAL=y
|
CONFIG_SPL_SERIAL=y
|
||||||
|
CONFIG_SPL_DRIVERS_MISC=y
|
||||||
CONFIG_SPL=y
|
CONFIG_SPL=y
|
||||||
CONFIG_ENV_OFFSET_REDUND=0xff8000
|
CONFIG_ENV_OFFSET_REDUND=0xff8000
|
||||||
CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
|
CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue