| /* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * IR357x driver. |
| */ |
| |
| #include "common.h" |
| #include "console.h" |
| #include "hooks.h" |
| #include "i2c.h" |
| #include "timer.h" |
| #include "uart.h" |
| #include "util.h" |
| |
| /* Console output macros */ |
| #define CPUTS(outstr) cputs(CC_CHIPSET, outstr) |
| #define CPRINTF(format, args...) cprintf(CC_CHIPSET, format, ## args) |
| |
| /* 8-bit I2C address */ |
| #define IR357x_I2C_ADDR (0x8 << 1) |
| |
| struct ir_setting { |
| uint8_t reg; |
| uint8_t value; |
| }; |
| |
| static struct ir_setting ir3570_settings[] = { |
| {0x10, 0x22}, {0x11, 0x22}, {0x12, 0x88}, {0x13, 0x10}, |
| {0x14, 0x0d}, {0x15, 0x21}, {0x16, 0x21}, {0x17, 0x00}, |
| {0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00}, |
| {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00}, |
| {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x60}, {0x23, 0x60}, |
| {0x24, 0x74}, {0x25, 0x4e}, {0x26, 0xff}, {0x27, 0x80}, |
| {0x28, 0x00}, {0x29, 0x20}, {0x2a, 0x15}, {0x2b, 0x26}, |
| {0x2c, 0xb6}, {0x2d, 0x21}, {0x2e, 0x11}, {0x2f, 0x20}, |
| {0x30, 0xab}, {0x31, 0x14}, {0x32, 0x90}, {0x33, 0x4d}, |
| {0x34, 0x75}, {0x35, 0x64}, {0x36, 0x64}, {0x37, 0x09}, |
| {0x38, 0xc4}, {0x39, 0x20}, {0x3a, 0x80}, {0x3b, 0x00}, |
| {0x3c, 0x00}, {0x3d, 0xaa}, {0x3e, 0x00}, {0x3f, 0x05}, |
| {0x40, 0x50}, {0x41, 0x40}, {0x42, 0x00}, {0x43, 0x00}, |
| {0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x00}, |
| {0x48, 0x1c}, {0x49, 0x0c}, {0x4a, 0x0f}, {0x4b, 0x40}, |
| {0x4c, 0x80}, {0x4d, 0x40}, {0x4e, 0x80}, |
| {0x51, 0x00}, {0x52, 0x45}, {0x53, 0x59}, |
| {0x54, 0x23}, {0x55, 0xae}, {0x56, 0x68}, {0x57, 0x24}, |
| {0x58, 0x62}, {0x59, 0x42}, {0x5a, 0x34}, {0x5b, 0x00}, |
| {0x5c, 0x30}, {0x5d, 0x05}, {0x5e, 0x02}, {0x5f, 0x35}, |
| {0x60, 0x30}, {0x61, 0x00}, {0x62, 0xd8}, {0x63, 0x00}, |
| {0x64, 0x52}, {0x65, 0x28}, {0x66, 0x14}, {0x67, 0x87}, |
| {0x68, 0x80}, {0x69, 0x00}, {0x6a, 0x00}, {0x6b, 0x00}, |
| {0x6c, 0x00}, {0x6d, 0xff}, {0x6e, 0x06}, {0x6f, 0xff}, |
| {0x70, 0xff}, {0x71, 0x20}, {0x72, 0x00}, {0x73, 0x01}, |
| {0x74, 0x00}, {0x75, 0x00}, {0x76, 0x00}, {0x77, 0x00}, |
| {0x78, 0x00}, {0x79, 0x00}, {0x7a, 0x00}, {0x7b, 0x00}, |
| {0x7c, 0x15}, {0x7d, 0x15}, {0x7e, 0x00}, {0x7f, 0x00}, |
| {0x80, 0x00}, {0x81, 0x00}, {0x82, 0x00}, {0x83, 0x00}, |
| {0x84, 0x00}, {0x85, 0x00}, {0x86, 0x00}, {0x87, 0x00}, |
| {0x88, 0x88}, {0x89, 0x88}, {0x8a, 0x01}, {0x8b, 0x42}, |
| {0x8d, 0x00}, {0x8e, 0x00}, {0x8f, 0x1f}, |
| {0, 0} |
| }; |
| |
| static struct ir_setting ir3571_settings[] = { |
| {0x18, 0x22}, {0x19, 0x22}, {0x1a, 0x08}, {0x1b, 0x10}, |
| {0x1c, 0x06}, {0x1d, 0x21}, {0x1e, 0x21}, {0x1f, 0x83}, |
| {0x20, 0x83}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00}, |
| {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x34}, |
| {0x28, 0x34}, {0x29, 0x74}, {0x2a, 0x4e}, {0x2b, 0xff}, |
| {0x2c, 0x00}, {0x2d, 0x1d}, {0x2e, 0x14}, {0x2f, 0x1f}, |
| {0x30, 0x88}, {0x31, 0x9a}, {0x32, 0x1e}, {0x33, 0x19}, |
| {0x34, 0xe9}, {0x35, 0x40}, {0x36, 0x90}, {0x37, 0x6d}, |
| {0x38, 0x75}, {0x39, 0xa0}, {0x3a, 0x84}, {0x3b, 0x08}, |
| {0x3c, 0xc5}, {0x3d, 0xa0}, {0x3e, 0x80}, {0x3f, 0xaa}, |
| {0x40, 0x50}, {0x41, 0x4b}, {0x42, 0x02}, {0x43, 0x04}, |
| {0x44, 0x00}, {0x45, 0x00}, {0x46, 0x00}, {0x47, 0x78}, |
| {0x48, 0x56}, {0x49, 0x18}, {0x4a, 0x88}, {0x4b, 0x00}, |
| {0x4c, 0x80}, {0x4d, 0x60}, {0x4e, 0x60}, {0x4f, 0xff}, |
| {0x50, 0xff}, {0x51, 0x00}, {0x52, 0x9b}, {0x53, 0xaa}, |
| {0x54, 0xd8}, {0x55, 0x56}, {0x56, 0x31}, {0x57, 0x1a}, |
| {0x58, 0x12}, {0x59, 0x63}, {0x5a, 0x00}, {0x5b, 0x09}, |
| {0x5c, 0x02}, {0x5d, 0x00}, {0x5e, 0xea}, {0x5f, 0x00}, |
| {0x60, 0xb0}, {0x61, 0x1e}, {0x62, 0x00}, {0x63, 0x56}, |
| {0x64, 0x00}, {0x65, 0x00}, {0x66, 0x00}, {0x67, 0x00}, |
| {0x68, 0x28}, {0x69, 0x00}, {0x6a, 0x00}, {0x6b, 0x00}, |
| {0x6c, 0x00}, {0x6d, 0x00}, {0x6e, 0x00}, {0x6f, 0x00}, |
| {0x70, 0x80}, {0x71, 0x00}, {0x72, 0x00}, {0x73, 0x00}, |
| {0x74, 0x00}, {0x75, 0xbf}, {0x76, 0x06}, {0x77, 0xff}, |
| {0x78, 0xff}, {0x79, 0x04}, {0x7a, 0x00}, {0x7b, 0x1d}, |
| {0x7c, 0xa0}, {0x7d, 0x10}, {0x7e, 0x00}, {0x7f, 0x8a}, |
| {0x80, 0x1b}, {0x81, 0x11}, {0x82, 0x00}, {0x83, 0x00}, |
| {0x84, 0x00}, {0x85, 0x00}, {0x86, 0x00}, {0x87, 0x00}, |
| {0x88, 0x00}, {0x89, 0x00}, {0x8a, 0x00}, {0x8b, 0x00}, |
| {0x8c, 0x00}, {0x8d, 0x00}, {0x8e, 0x00}, {0x8f, 0x00}, |
| {0, 0} |
| }; |
| |
| static uint8_t ir357x_read(uint8_t reg) |
| { |
| int res; |
| int val; |
| |
| res = i2c_read8(I2C_PORT_REGULATOR, IR357x_I2C_ADDR, reg, &val); |
| if (res) |
| return 0xee; |
| |
| return val; |
| } |
| |
| static void ir357x_write(uint8_t reg, uint8_t val) |
| { |
| int res; |
| |
| res = i2c_write8(I2C_PORT_REGULATOR, IR357x_I2C_ADDR, reg, val); |
| if (res) |
| CPRINTF("IR I2C write failed\n"); |
| } |
| |
| static int ir357x_get_version(void) |
| { |
| /* IR3571 on Link EVT */ |
| if ((ir357x_read(0xfc) == 'I') && (ir357x_read(0xfd) == 'R') && |
| ((ir357x_read(0x0a) & 0xe) == 0)) |
| return 3571; |
| |
| /* IR3570A on Link Proto 0/1 and Link DVT */ |
| if ((ir357x_read(0x92) == 'C') && (ir357x_read(0xcd) == 0x24)) |
| return 3570; |
| |
| /* Unknown and unsupported chip */ |
| return -1; |
| } |
| |
| struct ir_setting *ir357x_get_settings(void) |
| { |
| int version = ir357x_get_version(); |
| |
| if (version == 3570) |
| return ir3570_settings; |
| else if (version == 3571) |
| return ir3571_settings; |
| else |
| return NULL; |
| } |
| |
| static void ir357x_prog(void) |
| { |
| struct ir_setting *settings = ir357x_get_settings(); |
| |
| if (settings) { |
| for (; settings->reg; settings++) |
| ir357x_write(settings->reg, settings->value); |
| } else { |
| CPRINTF("IR%d chip unsupported. Skip writing settings!\n", |
| ir357x_get_version()); |
| return; |
| } |
| |
| CPRINTF("IR%d registers UPDATED\n", ir357x_get_version()); |
| } |
| |
| static void ir357x_dump(void) |
| { |
| int i; |
| |
| for (i = 0; i < 256; i++) { |
| if (!(i & 0xf)) { |
| ccprintf("\n%02x: ", i); |
| cflush(); |
| } |
| ccprintf("%02x ", ir357x_read(i)); |
| } |
| ccprintf("\n"); |
| } |
| |
| static int ir357x_check(void) |
| { |
| uint8_t val; |
| int diff = 0; |
| struct ir_setting *settings = ir357x_get_settings(); |
| |
| if (!settings) { |
| ccprintf("no setting for chip IR%d !\n", ir357x_get_version()); |
| return 1; |
| } |
| |
| for (; settings->reg; settings++) { |
| val = ir357x_read(settings->reg); |
| if (val != settings->value) { |
| ccprintf("DIFF reg 0x%02x %02x->%02x\n", |
| settings->reg, settings->value, val); |
| cflush(); |
| diff++; |
| } |
| } |
| return !!diff; |
| } |
| |
| static int command_ir357x(int argc, char **argv) |
| { |
| int reg, val; |
| char *rem; |
| |
| if (1 == argc) { /* dump all registers */ |
| ir357x_dump(); |
| return EC_SUCCESS; |
| } else if (2 == argc) { |
| if (!strcasecmp(argv[1], "check")) { |
| ir357x_check(); |
| } else { /* read one register */ |
| reg = strtoi(argv[1], &rem, 16); |
| if (*rem) { |
| ccprintf("Invalid register: %s\n", argv[1]); |
| return EC_ERROR_INVAL; |
| } |
| ccprintf("reg 0x%02x = 0x%02x\n", reg, |
| ir357x_read(reg)); |
| } |
| return EC_SUCCESS; |
| } else if (3 == argc) { /* write one register */ |
| reg = strtoi(argv[1], &rem, 16); |
| if (*rem) { |
| ccprintf("Invalid register: %s\n", argv[1]); |
| return EC_ERROR_INVAL; |
| } |
| val = strtoi(argv[2], &rem, 16); |
| if (*rem) { |
| ccprintf("Invalid value: %s\n", argv[2]); |
| return EC_ERROR_INVAL; |
| } |
| ir357x_write(reg, val); |
| return EC_SUCCESS; |
| } |
| |
| return EC_ERROR_INVAL; |
| } |
| DECLARE_CONSOLE_COMMAND(ir357x, command_ir357x, |
| "[check|write]", |
| "IR357x core regulator control", |
| NULL); |
| |
| static void ir357x_hot_settings(void) |
| { |
| /* dynamically apply settings to workaround issue */ |
| ir357x_prog(); |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_RESUME, ir357x_hot_settings, HOOK_PRIO_DEFAULT); |
