February 2022 - flashrom-gerrit

Change in flashrom[master]: writeprotect, cli_classic: delete old writeprotect code
by Edward O'Callaghan (Code Review) 02 Feb '22

02 Feb '22

Attention is currently required from: Nico Huber, Nikolai Artemiev, Sergii Dmytruk. Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58474 ) Change subject: writeprotect, cli_classic: delete old writeprotect code ...................................................................... Patch Set 15: Code-Review+2 -- To view, visit https://review.coreboot.org/c/flashrom/+/58474 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I67e9b31f86465e5a8f7d3def637198671ee818a8 Gerrit-Change-Number: 58474 Gerrit-PatchSet: 15 Gerrit-Owner: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Reviewer: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Attention: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Comment-Date: Wed, 02 Feb 2022 01:18:02 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

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Change in flashrom[master]: flashchips: add writeprotect bit layout map to chips
by Anastasia Klimchuk (Code Review) 02 Feb '22

02 Feb '22

Attention is currently required from: Nico Huber, Edward O'Callaghan, Angel Pons, Nikolai Artemiev, Sergii Dmytruk. Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58477 ) Change subject: flashchips: add writeprotect bit layout map to chips ...................................................................... Patch Set 27: (1 comment) File flashchips.c: https://review.coreboot.org/c/flashrom/+/58477/comment/b9846a55_9be25c79 PS20, Line 6353: .tb = {STATUS1, 5, RW}, /* Called BP3 in datasheet, acts like TB */ : .sec = {STATUS1, 6, RW}, /* Called BP4 in datasheet, acts like SEC */ > Done in the code, though I'm not sure how I should create an account to edit the wiki. Nikolai, I can edit wiki, let's coordinate this! -- To view, visit https://review.coreboot.org/c/flashrom/+/58477 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: Id08d77e6d4ca5109c0d698271146d026dbc21284 Gerrit-Change-Number: 58477 Gerrit-PatchSet: 27 Gerrit-Owner: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Reviewer: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Attention: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Attention: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Attention: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Comment-Date: Tue, 01 Feb 2022 23:22:02 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: Nico Huber <nico.h(a)gmx.de> Comment-In-Reply-To: Angel Pons <th3fanbus(a)gmail.com> Comment-In-Reply-To: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-MessageType: comment

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Change in flashrom[master]: spi25_statusreg,flashchips: add SR2 read/write support
by Anastasia Klimchuk (Code Review) 02 Feb '22

02 Feb '22

Attention is currently required from: Nico Huber, Angel Pons, Nikolai Artemiev, Sergii Dmytruk. Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58570 ) Change subject: spi25_statusreg,flashchips: add SR2 read/write support ...................................................................... Patch Set 24: Code-Review+2 -- To view, visit https://review.coreboot.org/c/flashrom/+/58570 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I34a503b0958e8f2f22a2a993a6ea529eb46b41db Gerrit-Change-Number: 58570 Gerrit-PatchSet: 24 Gerrit-Owner: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Reviewer: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Attention: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Attention: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Comment-Date: Tue, 01 Feb 2022 23:16:11 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

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Change in flashrom[master]: spi25_statusreg: make register read/write functions generic
by Anastasia Klimchuk (Code Review) 02 Feb '22

02 Feb '22

Attention is currently required from: Nico Huber, Angel Pons, Nikolai Artemiev, Sergii Dmytruk. Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58475 ) Change subject: spi25_statusreg: make register read/write functions generic ...................................................................... Patch Set 21: Code-Review+2 -- To view, visit https://review.coreboot.org/c/flashrom/+/58475 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I0a3951bbf993f2d8d830143b29d3ce16cc6901d7 Gerrit-Change-Number: 58475 Gerrit-PatchSet: 21 Gerrit-Owner: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Reviewer: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Attention: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Attention: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Comment-Date: Tue, 01 Feb 2022 23:16:01 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

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Change in flashrom[master]: writeprotect, cli_classic: delete old writeprotect code
by Anastasia Klimchuk (Code Review) 02 Feb '22

02 Feb '22

Attention is currently required from: Nico Huber, Nikolai Artemiev, Sergii Dmytruk. Anastasia Klimchuk has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/58474 ) Change subject: writeprotect, cli_classic: delete old writeprotect code ...................................................................... Patch Set 15: Code-Review+2 -- To view, visit https://review.coreboot.org/c/flashrom/+/58474 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I67e9b31f86465e5a8f7d3def637198671ee818a8 Gerrit-Change-Number: 58474 Gerrit-PatchSet: 15 Gerrit-Owner: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Reviewer: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Nikolai Artemiev <nartemiev(a)google.com> Gerrit-Attention: Sergii Dmytruk <sergii.dmytruk(a)3mdeb.com> Gerrit-Comment-Date: Tue, 01 Feb 2022 23:15:44 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

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Change in flashrom[master]: Add mediatek_i2c_spi interface
by Edward O'Callaghan (Code Review) 01 Feb '22

01 Feb '22

Edward O'Callaghan has submitted this change. ( https://review.coreboot.org/c/flashrom/+/61288 ) Change subject: Add mediatek_i2c_spi interface ...................................................................... Add mediatek_i2c_spi interface Add a spi_master interface supporting MediaTek MST9U ISP mode. Autodetect the bus type via I2C_FUNC_I2C, and use the appropriate read/write commands, in case the MST9U is attached to smbus. TEST=Successfully programmed SPI on test hardware. Change-Id: I24adb14e7b4f7160e1c3ff941774064d5a81e820 Signed-off-by: Neill Corlett <corlett(a)google.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/61288 Tested-by: build bot (Jenkins) <no-reply(a)coreboot.org> Reviewed-by: Edward O'Callaghan <quasisec(a)chromium.org> --- M Makefile A mediatek_i2c_spi.c M meson.build M meson_options.txt M programmer.h M programmer_table.c 6 files changed, 531 insertions(+), 0 deletions(-) Approvals: build bot (Jenkins): Verified Edward O'Callaghan: Looks good to me, approved diff --git a/Makefile b/Makefile index d4de2ff..086cd45 100644 --- a/Makefile +++ b/Makefile @@ -482,6 +482,9 @@ # Disables LSPCON support until the i2c helper supports multiple systems. CONFIG_LSPCON_I2C_SPI ?= no +# Disables MediaTek support until the i2c helper supports multiple systems. +CONFIG_MEDIATEK_I2C_SPI ?= no + # Disables REALTEK_MST support until the i2c helper supports multiple systems. CONFIG_REALTEK_MST_I2C_SPI ?= no @@ -698,6 +701,11 @@ PROGRAMMER_OBJS += lspcon_i2c_spi.o endif +ifeq ($(CONFIG_MEDIATEK_I2C_SPI), yes) +FEATURE_FLAGS += -D'CONFIG_MEDIATEK_I2C_SPI=1' +PROGRAMMER_OBJS += mediatek_i2c_spi.o +endif + ifeq ($(CONFIG_REALTEK_MST_I2C_SPI), yes) FEATURE_FLAGS += -D'CONFIG_REALTEK_MST_I2C_SPI=1' PROGRAMMER_OBJS += realtek_mst_i2c_spi.o diff --git a/mediatek_i2c_spi.c b/mediatek_i2c_spi.c new file mode 100644 index 0000000..7d9610f --- /dev/null +++ b/mediatek_i2c_spi.c @@ -0,0 +1,512 @@ +/* + * This file is part of the flashrom project. + * + * Copyright (C) 2021 The Chromium OS Authors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/i2c-dev.h> +#include <linux/i2c.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <unistd.h> + +#include "flash.h" +#include "i2c_helper.h" +#include "programmer.h" +#include "spi.h" + +#define ISP_PORT (0x92 >> 1) +#define DEBUG_PORT (0xb2 >> 1) + +#define MTK_CMD_WRITE 0x10 +#define MTK_CMD_READ 0x11 +#define MTK_CMD_END 0x12 + +struct mediatek_data { + int fd; + unsigned long funcs; +}; + +// Returns null pointer on error. +static const struct mediatek_data *get_data_from_context( + const struct flashctx *flash) +{ + if (!flash || !flash->mst || !flash->mst->spi.data) { + msg_pdbg("Unable to extract data from flash context\n"); + return NULL; + } + return (const struct mediatek_data *)flash->mst->spi.data; +} + +// Returns bytes read, negative value on error. +static int read_raw(const struct mediatek_data *port, uint16_t addr, + uint8_t *buf, size_t len) +{ + int ret; + + if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) { + msg_pdbg("Invalid length for read command: %zu\n", len); + return SPI_INVALID_LENGTH; + } + + ret = ioctl(port->fd, I2C_SLAVE, addr); + if (ret) { + msg_pdbg("Failed to set slave address 0x%02x (%d)\n", addr, ret); + return ret; + } + + if (port->funcs & I2C_FUNC_I2C) { + // Use raw I2C read. + uint8_t command = MTK_CMD_READ; + if (write(port->fd, &command, 1) != 1) { + return SPI_GENERIC_ERROR; + } + if (read(port->fd, buf, len) != (int)len) { + return SPI_GENERIC_ERROR; + } + return len; + } + + union i2c_smbus_data data = { + .block[0] = len, + }; + struct i2c_smbus_ioctl_data args = { + .read_write = I2C_SMBUS_READ, + .command = MTK_CMD_READ, + .size = I2C_SMBUS_I2C_BLOCK_DATA, + .data = &data, + }; + ret = ioctl(port->fd, I2C_SMBUS, &args); + if (ret) { + msg_pdbg("Failed to read SMBus I2C block data\n"); + return ret; + } + memcpy(buf, args.data->block + 1, len); + return args.data->block[0]; +} + +// Returns non-zero value on error. +static int write_command(const struct mediatek_data *port, uint16_t addr, + uint8_t command, const uint8_t *buf, size_t len) +{ + int ret; + + if (len > I2C_SMBUS_BLOCK_MAX) { + msg_pdbg("Invalid length for write command: %zu\n", len); + return SPI_INVALID_LENGTH; + } + + ret = ioctl(port->fd, I2C_SLAVE, addr); + if (ret) { + msg_pdbg("Failed to set slave address: 0x%02x\n", addr); + return ret; + } + + if (port->funcs & I2C_FUNC_I2C) { + // Use raw I2C write. + uint8_t raw_buffer[I2C_SMBUS_BLOCK_MAX + 1]; + raw_buffer[0] = command; + if (len > 0) { + memcpy(raw_buffer + 1, buf, len); + } + if (write(port->fd, raw_buffer, len + 1) != (int)(len + 1)) { + return SPI_GENERIC_ERROR; + } + return 0; + } + + union i2c_smbus_data data = {0}; + struct i2c_smbus_ioctl_data args = { + .read_write = I2C_SMBUS_WRITE, + .command = command, + .data = &data, + }; + + // Special case single byte commands, as empty I2C block data commands + // failed on this component in practice. + if (len == 0) { + args.size = I2C_SMBUS_BYTE; + ret = ioctl(port->fd, I2C_SMBUS, &args); + if (ret) { + msg_pdbg("Failed to write SMBus byte: 0x%02x\n", command); + } + return ret; + } + + args.size = I2C_SMBUS_I2C_BLOCK_DATA; + data.block[0] = len; + if (buf && len) { + memcpy(data.block + 1, buf, len); + } + ret = ioctl(port->fd, I2C_SMBUS, &args); + if (ret) { + msg_pdbg("Failed to write SMBus I2C block data: 0x%02x\n", command); + } + return ret; +} + +// Returns non-zero value on error. +static int write_raw(const struct mediatek_data *port, uint16_t addr, + const uint8_t *buf, size_t len) +{ + if (len < 1) { + msg_pdbg("Invalid write length: %zu\n", len); + return SPI_INVALID_LENGTH; + } + return write_command(port, addr, buf[0], buf + 1, len - 1); +} + +// Read from a GPIO register via debug port. Returns non-zero value on error. +static int mediatek_read_gpio(const struct mediatek_data *port, + uint16_t gpio_addr, uint8_t *value) +{ + int ret; + + uint8_t data[2]; + data[0] = gpio_addr >> 8; + data[1] = gpio_addr & 0xff; + + ret = write_command(port, DEBUG_PORT, MTK_CMD_WRITE, data, ARRAY_SIZE(data)); + if (ret) { + msg_pdbg("Failed to issue read GPIO command at address 0x%04x\n", gpio_addr); + return ret; + } + + size_t len = 1; + ret = read_raw(port, DEBUG_PORT, value, len); + if (ret < 0) { + msg_pdbg("Failed to read GPIO register at address 0x%04x\n", gpio_addr); + return ret; + } + + if (ret != 1) { + msg_pdbg("GPIO read returned improper length: %d\n", ret); + return SPI_INVALID_LENGTH; + } + + return 0; +} + +// Write to a GPIO register via the debug port. Returns non-zero value on error. +static int mediatek_write_gpio(const struct mediatek_data *port, + uint16_t gpio_addr, uint8_t value) +{ + uint8_t data[3]; + data[0] = gpio_addr >> 8; + data[1] = gpio_addr & 0xff; + data[2] = value; + + return write_command(port, DEBUG_PORT, MTK_CMD_WRITE, data, ARRAY_SIZE(data)); +} + +// Write a single bit value to a GPIO register via the debug port. Returns +// non-zero value on error. +static int mediatek_set_gpio_bit(const struct mediatek_data *port, + uint16_t gpio_addr, int bit, int value) +{ + int ret; + uint8_t data; + + ret = mediatek_read_gpio(port, gpio_addr, &data); + if (ret) { + msg_pdbg("Failed to read GPIO 0x%04x\n", gpio_addr); + return ret; + } + + if (value) { + data |= (1 << bit); + } else { + data &= ~(1 << bit); + } + + ret = mediatek_write_gpio(port, gpio_addr, data); + if (ret) { + msg_pdbg("Failed to set GPIO 0x%04x to 0x%02x\n", gpio_addr, data); + return ret; + } + return ret; +} + +// Poke the GPIO line that goes to SPI WP# using the MST9U GPIO register +// addresses. Returns non-zero value on error. +static int mediatek_set_write_protect(const struct mediatek_data *port, + int protected) +{ + int ret; + + ret = mediatek_set_gpio_bit(port, 0x426, 7, (protected == 0)); + if (ret) { + msg_perr("Failed to set GPIO out value: %d\n", protected == 0); + return ret; + } + + ret = mediatek_set_gpio_bit(port, 0x428, 7, (protected != 0)); + if (ret) { + msg_perr("Failed to set GPIO enable value: %d\n", protected != 0); + return ret; + } + + return 0; +} + +// Enter serial debug mode using "Option 1" for MST9U and select I2C channel 0 +// to configure write protect GPIOs. Returns non-zero value on error. +static int mediatek_enter_serial_debug_mode(const struct mediatek_data *port) +{ + int ret; + + uint8_t enter_serial_debug[] = { 'S', 'E', 'R', 'D', 'B' }; + ret = write_raw(port, DEBUG_PORT, enter_serial_debug, + ARRAY_SIZE(enter_serial_debug)); + if (ret) { + msg_perr("Failed to send enter serial debug mode command\n"); + return ret; + } + + uint8_t enter_single_step_1[] = { 0xc0, 0xc1, 0x53 }; + ret = write_command(port, DEBUG_PORT, MTK_CMD_WRITE, + enter_single_step_1, ARRAY_SIZE(enter_single_step_1)); + if (ret) { + msg_perr("Failed to enter serial single step mode (part 1)\n"); + return ret; + } + + uint8_t enter_single_step_2[] = { 0x1f, 0xc1, 0x53 }; + ret = write_command(port, DEBUG_PORT, MTK_CMD_WRITE, enter_single_step_2, + ARRAY_SIZE(enter_single_step_2)); + if (ret) { + msg_perr("Failed to enter serial single step mode (part 2)\n"); + return ret; + } + + // Send each I2C channel 0 configuration byte individually. + uint8_t i2c_channel_0_config[] = + { 0x80, 0x82, 0x84, 0x51, 0x7f, 0x37, 0x61 }; + for (size_t i = 0; i < ARRAY_SIZE(i2c_channel_0_config); ++i) { + ret = write_command( + port, DEBUG_PORT, i2c_channel_0_config[i], NULL, 0); + if (ret) { + msg_perr("Failed to configure i2c channel 0: 0x%02x\n", + i2c_channel_0_config[i]); + return ret; + } + } + + uint8_t enter_single_step_3[] = { 0x00, 0x00, 0x00 }; + ret = write_command(port, DEBUG_PORT, MTK_CMD_WRITE, enter_single_step_3, + ARRAY_SIZE(enter_single_step_3)); + if (ret) { + msg_perr("Failed to enter serial single step mode (part 3)\n"); + return ret; + } + + ret = write_command(port, DEBUG_PORT, 0x35, NULL, 0); + if (ret) { + msg_perr("Failed to send serial debug command (part 1)\n"); + return ret; + } + + ret = write_command(port, DEBUG_PORT, 0x71, NULL, 0); + if (ret) { + msg_perr("Failed to send serial debug command (part 2)\n"); + return ret; + } + + return 0; +} + +// Returns non-zero value on error. +static int mediatek_enter_isp(const struct mediatek_data *port) +{ + int ret; + + ret = mediatek_enter_serial_debug_mode(port); + if (ret) { + msg_perr("Failed to enter serial debug mode\n"); + return ret; + } + + // MediaTek documentation says to do this twice just in case. + uint8_t enter_isp[] = { 'M', 'S', 'T', 'A', 'R' }; + ret = write_raw(port, ISP_PORT, enter_isp, ARRAY_SIZE(enter_isp)); + if (ret) { + msg_gwarn("Failed to enter ISP mode, trying again\n"); + } + ret = write_raw(port, ISP_PORT, enter_isp, ARRAY_SIZE(enter_isp)); + if (ret) { + msg_gwarn("Might already be in ISP mode, ignoring\n"); + } + + ret = mediatek_set_write_protect(port, 0); + if (ret) { + msg_perr("Failed to disable write protection\n"); + return ret; + } + + return 0; +} + +// Returns non-zero value on error. +static int mediatek_exit_isp(const struct mediatek_data *port) +{ + int ret; + + ret = mediatek_set_write_protect(port, 1); + if (ret) { + msg_perr("Failed to re-enable write protect\n"); + return ret; + } + + uint8_t exit_single_step[] = { 0xc0, 0xc1, 0xff }; + ret = write_command(port, DEBUG_PORT, MTK_CMD_WRITE, exit_single_step, + ARRAY_SIZE(exit_single_step)); + if (ret) { + msg_perr("Failed to exit single step mode\n"); + return ret; + } + + ret = write_command(port, DEBUG_PORT, 0x34, NULL, 0); + if (ret) { + msg_perr("Failed to exit serial debug mode (1), ignoring\n"); + } + + ret = write_command(port, DEBUG_PORT, 0x45, NULL, 0); + if (ret) { + msg_perr("Failed to exit serial debug mode (2), ignoring\n"); + } + + ret = write_command(port, ISP_PORT, 0x24, NULL, 0); + if (ret) { + msg_perr("Failed to exit ISP mode command, ignoring\n"); + } + + return 0; +} + +static int mediatek_send_command(const struct flashctx *flash, + unsigned int writecnt, unsigned int readcnt, + const uint8_t *writearr, uint8_t *readarr) +{ + const struct mediatek_data *port = get_data_from_context(flash); + if (!port) { + msg_perr("Failed to extract chip data for ISP command\n"); + return SPI_GENERIC_ERROR; + } + + int ret; + + if (writecnt) { + ret = write_command(port, ISP_PORT, MTK_CMD_WRITE, + writearr, writecnt); + if (ret) { + msg_perr("Failed to issue ISP write command\n"); + return ret; + } + } + + if (readcnt) { + size_t len = readcnt; + ret = read_raw(port, ISP_PORT, readarr, len); + if (ret < 0) { + msg_perr("Failed to read ISP command result\n"); + return ret; + } + + if (ret != (int)readcnt) { + msg_perr("Read length mismatched: expected %u got %d\n", readcnt, ret); + return SPI_INVALID_LENGTH; + } + } + + // End the current command. + ret = write_command(port, ISP_PORT, MTK_CMD_END, NULL, 0); + if (ret) { + msg_perr("Failed to end ISP command\n"); + return ret; + } + + return 0; +} + +static const struct spi_master spi_master_i2c_mediatek = { + .max_data_read = I2C_SMBUS_BLOCK_MAX, + // Leave room for 1-byte command and up to a 4-byte address. + .max_data_write = I2C_SMBUS_BLOCK_MAX - 5, + .command = mediatek_send_command, + .multicommand = default_spi_send_multicommand, + .read = default_spi_read, + .write_256 = default_spi_write_256, + .write_aai = default_spi_write_aai, +}; + +static int mediatek_shutdown(void *data) +{ + int ret = 0; + struct mediatek_data *port = (struct mediatek_data *)data; + + ret |= mediatek_exit_isp(port); + i2c_close(port->fd); + free(data); + + return ret; +} + +static int mediatek_init(void) +{ + int ret; + int fd = i2c_open_from_programmer_params(ISP_PORT, 0); + if (fd < 0) { + msg_perr("Failed to open i2c\n"); + return fd; + } + + struct mediatek_data *port = calloc(1, sizeof(*port)); + if (!port) { + msg_perr("Unable to allocate space for SPI master data\n"); + i2c_close(fd); + return SPI_GENERIC_ERROR; + } + port->fd = fd; + + ret = ioctl(fd, I2C_FUNCS, &(port->funcs)); + if (ret) { + msg_perr("Failed to fetch I2C bus functionality\n"); + free(port); + i2c_close(fd); + return ret; + } + + ret = mediatek_enter_isp(port); + if (ret) { + msg_perr("Failed to enter ISP mode\n"); + free(port); + i2c_close(fd); + return ret; + } + + ret |= register_shutdown(mediatek_shutdown, port); + ret |= register_spi_master(&spi_master_i2c_mediatek, port); + + return ret; +} + +const struct programmer_entry programmer_mediatek_i2c_spi = { + .name = "mediatek_i2c_spi", + .type = OTHER, + .devs.note = "Device files /dev/i2c-*\n", + .init = mediatek_init, + .map_flash_region = fallback_map, + .unmap_flash_region = fallback_unmap, + .delay = internal_delay, +}; diff --git a/meson.build b/meson.build index cb34e54..cd9f9fb 100644 --- a/meson.build +++ b/meson.build @@ -96,6 +96,7 @@ config_usbblaster_spi = get_option('config_usbblaster_spi') config_stlinkv3_spi = get_option('config_stlinkv3_spi') config_lspcon_i2c_spi = get_option('config_lspcon_i2c_spi') +config_mediatek_i2c_spi = get_option('config_mediatek_i2c_spi') config_realtek_mst_i2c_spi = get_option('config_realtek_mst_i2c_spi') config_print_wiki= get_option('print_wiki') config_default_programmer_name = get_option('default_programmer_name') @@ -345,6 +346,10 @@ srcs += 'lspcon_i2c_spi.c' cargs += '-DCONFIG_LSPCON_I2C_SPI=1' endif +if config_mediatek_i2c_spi + srcs += 'mediatek_i2c_spi.c' + cargs += '-DCONFIG_MEDIATEK_I2C_SPI=1' +endif if config_realtek_mst_i2c_spi srcs += 'realtek_mst_i2c_spi.c' cargs += '-DCONFIG_REALTEK_MST_I2C_SPI=1' diff --git a/meson_options.txt b/meson_options.txt index 588ed5b..8022c74 100644 --- a/meson_options.txt +++ b/meson_options.txt @@ -40,4 +40,5 @@ option('config_usbblaster_spi', type : 'boolean', value : true, description : 'Altera USB-Blaster dongles') option('config_stlinkv3_spi', type : 'boolean', value : true, description : 'STMicroelectronics STLINK-V3') option('config_lspcon_i2c_spi', type : 'boolean', value : false, description : 'Parade lspcon USB-C to HDMI protocol translator') +option('config_mediatek_i2c_spi', type : 'boolean', value : false, description : 'MediaTek LCD controller') option('config_realtek_mst_i2c_spi', type : 'boolean', value : true, description : 'Realtek MultiStream Transport MST') diff --git a/programmer.h b/programmer.h index 4dd4cad..647d822 100644 --- a/programmer.h +++ b/programmer.h @@ -76,6 +76,7 @@ extern const struct programmer_entry programmer_linux_mtd; extern const struct programmer_entry programmer_linux_spi; extern const struct programmer_entry programmer_lspcon_i2c_spi; +extern const struct programmer_entry programmer_mediatek_i2c_spi; extern const struct programmer_entry programmer_mstarddc_spi; extern const struct programmer_entry programmer_ni845x_spi; extern const struct programmer_entry programmer_nic3com; diff --git a/programmer_table.c b/programmer_table.c index e406f67..2a06c30 100644 --- a/programmer_table.c +++ b/programmer_table.c @@ -128,6 +128,10 @@ &programmer_lspcon_i2c_spi, #endif +#if CONFIG_MEDIATEK_I2C_SPI == 1 + &programmer_mediatek_i2c_spi, +#endif + #if CONFIG_REALTEK_MST_I2C_SPI == 1 &programmer_realtek_mst_i2c_spi, #endif 2 is the latest approved patch-set. No files were changed between the latest approved patch-set and the submitted one. -- To view, visit https://review.coreboot.org/c/flashrom/+/61288 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I24adb14e7b4f7160e1c3ff941774064d5a81e820 Gerrit-Change-Number: 61288 Gerrit-PatchSet: 4 Gerrit-Owner: Neill Corlett <corlett(a)google.com> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Nico Huber <nico.h(a)gmx.de> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-CC: Peter Marheine <pmarheine(a)chromium.org> Gerrit-MessageType: merged

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Change in flashrom[master]: meson: replace target_machine by host_machine
by Thomas Heijligen (Code Review) 01 Feb '22

01 Feb '22

Thomas Heijligen has abandoned this change. ( https://review.coreboot.org/c/flashrom/+/61197 ) Change subject: meson: replace target_machine by host_machine ...................................................................... Abandoned Resolved otherwise -- To view, visit https://review.coreboot.org/c/flashrom/+/61197 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I4a32c73052c3707607738c72256fb4366a2bf8ce Gerrit-Change-Number: 61197 Gerrit-PatchSet: 2 Gerrit-Owner: Thomas Heijligen <src(a)posteo.de> Gerrit-Reviewer: Edward O'Callaghan <quasisec(a)chromium.org> Gerrit-Reviewer: Felix Singer <felixsinger(a)posteo.net> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: Peter Marheine <pmarheine(a)chromium.org> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Anastasia Klimchuk <aklm(a)chromium.org> Gerrit-CC: Paul Menzel <paulepanter(a)mailbox.org> Gerrit-MessageType: abandon

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Change in flashrom[master]: Makefile: use pkg-config --libs --static for LDFLAGS
by Angel Pons (Code Review) 01 Feb '22

01 Feb '22

Attention is currently required from: Felix Singer, Nico Huber, Thomas Heijligen. Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/61524 ) Change subject: Makefile: use pkg-config --libs --static for LDFLAGS ...................................................................... Patch Set 4: Code-Review+1 -- To view, visit https://review.coreboot.org/c/flashrom/+/61524 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I6029a096c1ceca625789d18c88119d912d79bc0e Gerrit-Change-Number: 61524 Gerrit-PatchSet: 4 Gerrit-Owner: Thomas Heijligen <src(a)posteo.de> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Felix Singer <felixsinger(a)posteo.net> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Attention: Felix Singer <felixsinger(a)posteo.net> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Thomas Heijligen <src(a)posteo.de> Gerrit-Comment-Date: Tue, 01 Feb 2022 13:26:44 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes Gerrit-MessageType: comment

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Change in flashrom[master]: Makefile: check if librt is an external library
by Thomas Heijligen (Code Review) 01 Feb '22

01 Feb '22

Attention is currently required from: Nico Huber. Thomas Heijligen has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/61523 ) Change subject: Makefile: check if librt is an external library ...................................................................... Patch Set 4: (1 comment) Commit Message: https://review.coreboot.org/c/flashrom/+/61523/comment/7465125e_538a8fa9 PS3, Line 10: fail linking > IMHO, "fail to link" sounds more natural +1 -- To view, visit https://review.coreboot.org/c/flashrom/+/61523 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I2c1668a350aa0806fccfb4e9cd8b04861f085ee9 Gerrit-Change-Number: 61523 Gerrit-PatchSet: 4 Gerrit-Owner: Thomas Heijligen <src(a)posteo.de> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Felix Singer <felixsinger(a)posteo.net> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Comment-Date: Tue, 01 Feb 2022 12:40:46 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: Angel Pons <th3fanbus(a)gmail.com> Gerrit-MessageType: comment

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Change in flashrom[master]: Makefile: check if librt is an external library
by Thomas Heijligen (Code Review) 01 Feb '22

01 Feb '22

Attention is currently required from: Nico Huber, Thomas Heijligen. Hello Felix Singer, build bot (Jenkins), Nico Huber, Angel Pons, I'd like you to reexamine a change. Please visit https://review.coreboot.org/c/flashrom/+/61523 to look at the new patch set (#4). Change subject: Makefile: check if librt is an external library ...................................................................... Makefile: check if librt is an external library Some systems, e.g. OpenBSD, have clock_gettime / librt build into the libc and therefore fail to link against it with -lrt. Thus, detect this and link only if needed. Change-Id: I2c1668a350aa0806fccfb4e9cd8b04861f085ee9 Signed-off-by: Thomas Heijligen <thomas.heijligen(a)secunet.com> --- M Makefile M Makefile.include 2 files changed, 8 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/flashrom refs/changes/23/61523/4 -- To view, visit https://review.coreboot.org/c/flashrom/+/61523 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: flashrom Gerrit-Branch: master Gerrit-Change-Id: I2c1668a350aa0806fccfb4e9cd8b04861f085ee9 Gerrit-Change-Number: 61523 Gerrit-PatchSet: 4 Gerrit-Owner: Thomas Heijligen <src(a)posteo.de> Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Felix Singer <felixsinger(a)posteo.net> Gerrit-Reviewer: Nico Huber <nico.h(a)gmx.de> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-Attention: Nico Huber <nico.h(a)gmx.de> Gerrit-Attention: Thomas Heijligen <src(a)posteo.de> Gerrit-MessageType: newpatchset

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