diff options
Diffstat (limited to 'config/coreboot')
| -rw-r--r-- | config/coreboot/default/patches/0042-mb-dell-optiplex_9020-Implement-late-HWM-initializat.patch | 594 |
1 files changed, 594 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0042-mb-dell-optiplex_9020-Implement-late-HWM-initializat.patch b/config/coreboot/default/patches/0042-mb-dell-optiplex_9020-Implement-late-HWM-initializat.patch new file mode 100644 index 00000000..f6bd1940 --- /dev/null +++ b/config/coreboot/default/patches/0042-mb-dell-optiplex_9020-Implement-late-HWM-initializat.patch @@ -0,0 +1,594 @@ +From f6340f3fe21e948ba94d0429467882c2fb90b77e Mon Sep 17 00:00:00 2001 +From: Mate Kukri <kukri.mate@gmail.com> +Date: Sat, 6 Apr 2024 23:25:15 +0100 +Subject: [PATCH 1/1] mb/dell/optiplex_9020: Implement late HWM initialization + +There are 4 different chassis types specified by vendor firmware, each +with a slightly different HWM configuration. + +The chassis type to use is determined at runtime by reading a set of +4 PCH GPIOs: 70, 38, 17, and 0. + +Additionally vendor firmware also provides an option to run the fans at +full speed. This is substituted with a coreboot nvram option in this +implementation. + +This was tested to make fan control work on my OptiPlex 7020 SFF. + +NOTE: This is superficially similar to the OptiPlex 9010's SCH5545 +however the OptiPlex 9020's SCH5555 does not use externally +programmed EC firmware. + +Change-Id: Ibdccd3fc7364e03e84ca606592928410624eed43 +Signed-off-by: Mate Kukri <kukri.mate@gmail.com> +--- + src/mainboard/dell/optiplex_9020/Makefile.inc | 3 +- + src/mainboard/dell/optiplex_9020/bootblock.c | 25 +- + src/mainboard/dell/optiplex_9020/cmos.default | 1 + + src/mainboard/dell/optiplex_9020/cmos.layout | 5 +- + src/mainboard/dell/optiplex_9020/mainboard.c | 382 ++++++++++++++++++ + src/mainboard/dell/optiplex_9020/sch5555_ec.c | 54 +++ + src/mainboard/dell/optiplex_9020/sch5555_ec.h | 7 + + 7 files changed, 455 insertions(+), 22 deletions(-) + create mode 100644 src/mainboard/dell/optiplex_9020/sch5555_ec.c + create mode 100644 src/mainboard/dell/optiplex_9020/sch5555_ec.h + +diff --git a/src/mainboard/dell/optiplex_9020/Makefile.inc b/src/mainboard/dell/optiplex_9020/Makefile.inc +index 6ca2f2afaa..08e2e53577 100644 +--- a/src/mainboard/dell/optiplex_9020/Makefile.inc ++++ b/src/mainboard/dell/optiplex_9020/Makefile.inc +@@ -2,4 +2,5 @@ + + romstage-y += gpio.c + ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads +-bootblock-y += bootblock.c ++ramstage-y += sch5555_ec.c ++bootblock-y += bootblock.c sch5555_ec.c +diff --git a/src/mainboard/dell/optiplex_9020/bootblock.c b/src/mainboard/dell/optiplex_9020/bootblock.c +index 2837cf9cf1..e5e759273e 100644 +--- a/src/mainboard/dell/optiplex_9020/bootblock.c ++++ b/src/mainboard/dell/optiplex_9020/bootblock.c +@@ -4,29 +4,14 @@ + #include <device/pnp_ops.h> + #include <superio/smsc/sch555x/sch555x.h> + #include <southbridge/intel/lynxpoint/pch.h> +- +-static void ec_write(uint8_t addr1, uint16_t addr2, uint8_t val) +-{ +- // Clear EC-to-Host mailbox +- uint8_t tmp = inb(SCH555x_EMI_IOBASE + 1); +- outb(tmp, SCH555x_EMI_IOBASE + 1); +- +- // Send address and value to the EC +- sch555x_emi_write16(0, (addr1 * 2) | 0x101); +- sch555x_emi_write32(4, val | (addr2 << 16)); +- +- // Wait for acknowledgement message from EC +- outb(1, SCH555x_EMI_IOBASE); +- size_t timeout = 0; +- do {} while (++timeout < 0xfff && (inb(SCH555x_EMI_IOBASE + 1) & 1) == 0); +-} ++#include "sch5555_ec.h" + + struct ec_init_entry { + uint16_t addr; + uint8_t val; + }; + +-static void ec_init(void) ++static void bootblock_ec_init(void) + { + /* + * Tables from CORE_PEI +@@ -108,9 +93,9 @@ void mainboard_config_superio(void) + outb(0x01, SCH555x_RUNTIME_IOBASE + SCH555x_RUNTIME_UNK1); + outb(0x0f, SCH555x_RUNTIME_IOBASE + SCH555x_RUNTIME_LED); + +- // Magic EC init +- ec_init(); ++ // Perform bootblock EC initialization ++ bootblock_ec_init(); + +- // Magic EC init is needed for UART1 initialization to work ++ // Bootblock EC initialization is required for UART1 to work + sch555x_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + } +diff --git a/src/mainboard/dell/optiplex_9020/cmos.default b/src/mainboard/dell/optiplex_9020/cmos.default +index 7bccc80e51..1909abcb9f 100644 +--- a/src/mainboard/dell/optiplex_9020/cmos.default ++++ b/src/mainboard/dell/optiplex_9020/cmos.default +@@ -3,3 +3,4 @@ debug_level=Debug + nmi=Disable + power_on_after_fail=Disable + iommu=Disable ++fan_full_speed=Disable +diff --git a/src/mainboard/dell/optiplex_9020/cmos.layout b/src/mainboard/dell/optiplex_9020/cmos.layout +index 72ff9c4bee..4a1496a878 100644 +--- a/src/mainboard/dell/optiplex_9020/cmos.layout ++++ b/src/mainboard/dell/optiplex_9020/cmos.layout +@@ -22,7 +22,10 @@ entries + 409 2 e 5 power_on_after_fail + + # turn iommu on or off +-412 1 e 6 iommu ++411 1 e 6 iommu ++ ++# coreboot config options: EC ++412 1 e 1 fan_full_speed + + # coreboot config options: check sums + 984 16 h 0 check_sum +diff --git a/src/mainboard/dell/optiplex_9020/mainboard.c b/src/mainboard/dell/optiplex_9020/mainboard.c +index c834fea5d3..10b8aaca0e 100644 +--- a/src/mainboard/dell/optiplex_9020/mainboard.c ++++ b/src/mainboard/dell/optiplex_9020/mainboard.c +@@ -1,7 +1,12 @@ + /* SPDX-License-Identifier: GPL-2.0-only */ + ++#include <bootstate.h> ++#include <cpu/x86/msr.h> + #include <device/device.h> + #include <drivers/intel/gma/int15.h> ++#include <option.h> ++#include <southbridge/intel/lynxpoint/lp_gpio.h> ++#include "sch5555_ec.h" + + static void mainboard_enable(struct device *dev) + { +@@ -13,3 +18,380 @@ static void mainboard_enable(struct device *dev) + struct chip_operations mainboard_ops = { + .enable_dev = mainboard_enable, + }; ++ ++#define HWM_TAB_ADD_TEMP_TARGET 1 ++#define HWM_TAB_PKG_POWER_ANY 0xffff ++ ++struct hwm_tab_entry { ++ uint16_t addr; ++ uint8_t val; ++ uint8_t flags; ++ uint16_t pkg_power; ++}; ++ ++struct hwm_tab_entry HWM_TAB3[] = { ++ { 0x005, 0x33, 0, 0xffff }, ++ { 0x018, 0x2f, 0, 0xffff }, ++ { 0x019, 0x2f, 0, 0xffff }, ++ { 0x01a, 0x2f, 0, 0xffff }, ++ { 0x080, 0x00, 0, 0xffff }, ++ { 0x081, 0x00, 0, 0xffff }, ++ { 0x083, 0xbb, 0, 0xffff }, ++ { 0x085, 0x8a, 0, 0x0010 }, ++ { 0x086, 0x4c, 0, 0x0010 }, ++ { 0x08a, 0x66, 0, 0x0010 }, ++ { 0x08b, 0x5b, 0, 0x0010 }, ++ { 0x090, 0x65, 0, 0xffff }, ++ { 0x091, 0x70, 0, 0xffff }, ++ { 0x092, 0x86, 0, 0xffff }, ++ { 0x096, 0xa4, 0, 0xffff }, ++ { 0x097, 0xa4, 0, 0xffff }, ++ { 0x098, 0xa4, 0, 0xffff }, ++ { 0x09b, 0xa4, 0, 0xffff }, ++ { 0x0a0, 0x0e, 0, 0xffff }, ++ { 0x0a1, 0x0e, 0, 0xffff }, ++ { 0x0ae, 0x7c, 0, 0xffff }, ++ { 0x0af, 0x86, 0, 0xffff }, ++ { 0x0b0, 0x9a, 0, 0xffff }, ++ { 0x0b3, 0x9a, 0, 0xffff }, ++ { 0x0b6, 0x08, 0, 0xffff }, ++ { 0x0b7, 0x08, 0, 0xffff }, ++ { 0x0ea, 0x64, 0, 0x0020 }, ++ { 0x0ea, 0x5c, 0, 0x0010 }, ++ { 0x0ef, 0xff, 0, 0xffff }, ++ { 0x0f8, 0x15, 0, 0xffff }, ++ { 0x0f9, 0x00, 0, 0xffff }, ++ { 0x0f0, 0x30, 0, 0xffff }, ++ { 0x0fd, 0x01, 0, 0xffff }, ++ { 0x1a1, 0x00, 0, 0xffff }, ++ { 0x1a2, 0x00, 0, 0xffff }, ++ { 0x1b1, 0x08, 0, 0xffff }, ++ { 0x1be, 0x99, 0, 0xffff }, ++ { 0x280, 0xa0, 0, 0x0010 }, ++ { 0x281, 0x0f, 0, 0x0010 }, ++ { 0x282, 0x03, 0, 0xffff }, ++ { 0x283, 0x0a, 0, 0xffff }, ++ { 0x284, 0x80, 0, 0xffff }, ++ { 0x285, 0x03, 0, 0xffff }, ++ { 0x288, 0x68, 0, 0x0010 }, ++ { 0x289, 0x10, 0, 0x0010 }, ++ { 0x28a, 0x03, 0, 0xffff }, ++ { 0x28b, 0x0a, 0, 0xffff }, ++ { 0x28c, 0x80, 0, 0xffff }, ++ { 0x28d, 0x03, 0, 0xffff }, ++}; ++ ++struct hwm_tab_entry HWM_TAB4[] = { ++ { 0x005, 0x33, 0, 0xffff }, ++ { 0x018, 0x2f, 0, 0xffff }, ++ { 0x019, 0x2f, 0, 0xffff }, ++ { 0x01a, 0x2f, 0, 0xffff }, ++ { 0x080, 0x00, 0, 0xffff }, ++ { 0x081, 0x00, 0, 0xffff }, ++ { 0x083, 0xbb, 0, 0xffff }, ++ { 0x085, 0x99, 0, 0x0020 }, ++ { 0x085, 0xad, 0, 0x0010 }, ++ { 0x086, 0x1c, 0, 0xffff }, ++ { 0x08a, 0x39, 0, 0x0020 }, ++ { 0x08a, 0x41, 0, 0x0010 }, ++ { 0x08b, 0x76, 0, 0x0020 }, ++ { 0x08b, 0x8b, 0, 0x0010 }, ++ { 0x090, 0x5e, 0, 0xffff }, ++ { 0x091, 0x5e, 0, 0xffff }, ++ { 0x092, 0x86, 0, 0xffff }, ++ { 0x096, 0xa4, 0, 0xffff }, ++ { 0x097, 0xa4, 0, 0xffff }, ++ { 0x098, 0xa4, 0, 0xffff }, ++ { 0x09b, 0xa4, 0, 0xffff }, ++ { 0x0a0, 0x0a, 0, 0xffff }, ++ { 0x0a1, 0x0a, 0, 0xffff }, ++ { 0x0ae, 0x7c, 0, 0xffff }, ++ { 0x0af, 0x7c, 0, 0xffff }, ++ { 0x0b0, 0x9a, 0, 0xffff }, ++ { 0x0b3, 0x7c, 0, 0xffff }, ++ { 0x0b6, 0x08, 0, 0xffff }, ++ { 0x0b7, 0x08, 0, 0xffff }, ++ { 0x0ea, 0x64, 0, 0x0020 }, ++ { 0x0ea, 0x5c, 0, 0x0010 }, ++ { 0x0ef, 0xff, 0, 0xffff }, ++ { 0x0f8, 0x15, 0, 0xffff }, ++ { 0x0f9, 0x00, 0, 0xffff }, ++ { 0x0f0, 0x30, 0, 0xffff }, ++ { 0x0fd, 0x01, 0, 0xffff }, ++ { 0x1a1, 0x00, 0, 0xffff }, ++ { 0x1a2, 0x00, 0, 0xffff }, ++ { 0x1b1, 0x08, 0, 0xffff }, ++ { 0x1be, 0x90, 0, 0xffff }, ++ { 0x280, 0x94, 0, 0x0020 }, ++ { 0x281, 0x11, 0, 0x0020 }, ++ { 0x280, 0x94, 0, 0x0010 }, ++ { 0x281, 0x11, 0, 0x0010 }, ++ { 0x282, 0x03, 0, 0xffff }, ++ { 0x283, 0x0a, 0, 0xffff }, ++ { 0x284, 0x80, 0, 0xffff }, ++ { 0x285, 0x03, 0, 0xffff }, ++ { 0x288, 0x28, 0, 0x0020 }, ++ { 0x289, 0x0a, 0, 0x0020 }, ++ { 0x288, 0x28, 0, 0x0010 }, ++ { 0x289, 0x0a, 0, 0x0010 }, ++ { 0x28a, 0x03, 0, 0xffff }, ++ { 0x28b, 0x0a, 0, 0xffff }, ++ { 0x28c, 0x80, 0, 0xffff }, ++ { 0x28d, 0x03, 0, 0xffff }, ++}; ++ ++struct hwm_tab_entry HWM_TAB5[] = { ++ { 0x005, 0x33, 0, 0xffff }, ++ { 0x018, 0x2f, 0, 0xffff }, ++ { 0x019, 0x2f, 0, 0xffff }, ++ { 0x01a, 0x2f, 0, 0xffff }, ++ { 0x080, 0x00, 0, 0xffff }, ++ { 0x081, 0x00, 0, 0xffff }, ++ { 0x083, 0xbb, 0, 0xffff }, ++ { 0x085, 0x66, 0, 0x0020 }, ++ { 0x085, 0x5d, 0, 0x0010 }, ++ { 0x086, 0x1c, 0, 0xffff }, ++ { 0x08a, 0x39, 0, 0x0020 }, ++ { 0x08a, 0x41, 0, 0x0010 }, ++ { 0x08b, 0x76, 0, 0x0020 }, ++ { 0x08b, 0x80, 0, 0x0010 }, ++ { 0x090, 0x5d, 0, 0x0020 }, ++ { 0x090, 0x5e, 0, 0x0010 }, ++ { 0x091, 0x5e, 0, 0xffff }, ++ { 0x092, 0x86, 0, 0xffff }, ++ { 0x096, 0xa4, 0, 0xffff }, ++ { 0x097, 0xa4, 0, 0xffff }, ++ { 0x098, 0xa3, 0, 0x0020 }, ++ { 0x098, 0xa4, 0, 0x0010 }, ++ { 0x09b, 0xa4, 0, 0xffff }, ++ { 0x0a0, 0x08, 0, 0xffff }, ++ { 0x0a1, 0x0a, 0, 0xffff }, ++ { 0x0ae, 0x7c, 0, 0xffff }, ++ { 0x0af, 0x7c, 0, 0xffff }, ++ { 0x0b0, 0x9a, 0, 0xffff }, ++ { 0x0b3, 0x7c, 0, 0xffff }, ++ { 0x0b6, 0x08, 0, 0xffff }, ++ { 0x0b7, 0x08, 0, 0xffff }, ++ { 0x0ea, 0x64, 0, 0x0020 }, ++ { 0x0ea, 0x5c, 0, 0x0010 }, ++ { 0x0ef, 0xff, 0, 0xffff }, ++ { 0x0f8, 0x15, 0, 0xffff }, ++ { 0x0f9, 0x00, 0, 0xffff }, ++ { 0x0f0, 0x30, 0, 0xffff }, ++ { 0x0fd, 0x01, 0, 0xffff }, ++ { 0x1a1, 0x00, 0, 0xffff }, ++ { 0x1a2, 0x00, 0, 0xffff }, ++ { 0x1b1, 0x08, 0, 0xffff }, ++ { 0x1be, 0x98, 0, 0x0020 }, ++ { 0x1be, 0x90, 0, 0x0010 }, ++ { 0x280, 0x94, 0, 0x0020 }, ++ { 0x281, 0x11, 0, 0x0020 }, ++ { 0x280, 0x94, 0, 0x0010 }, ++ { 0x281, 0x11, 0, 0x0010 }, ++ { 0x282, 0x03, 0, 0xffff }, ++ { 0x283, 0x0a, 0, 0xffff }, ++ { 0x284, 0x80, 0, 0xffff }, ++ { 0x285, 0x03, 0, 0xffff }, ++ { 0x288, 0x28, 0, 0x0020 }, ++ { 0x289, 0x0a, 0, 0x0020 }, ++ { 0x288, 0x28, 0, 0x0010 }, ++ { 0x289, 0x0a, 0, 0x0010 }, ++ { 0x28a, 0x03, 0, 0xffff }, ++ { 0x28b, 0x0a, 0, 0xffff }, ++ { 0x28c, 0x80, 0, 0xffff }, ++ { 0x28d, 0x03, 0, 0xffff }, ++}; ++ ++struct hwm_tab_entry HWM_TAB6[] = { ++ { 0x005, 0x33, 0, 0xffff }, ++ { 0x018, 0x2f, 0, 0xffff }, ++ { 0x019, 0x2f, 0, 0xffff }, ++ { 0x01a, 0x2f, 0, 0xffff }, ++ { 0x080, 0x00, 0, 0xffff }, ++ { 0x081, 0x00, 0, 0xffff }, ++ { 0x083, 0xbb, 0, 0xffff }, ++ { 0x085, 0x98, 0, 0xffff }, ++ { 0x086, 0x3c, 0, 0xffff }, ++ { 0x08a, 0x39, 0, 0x0020 }, ++ { 0x08a, 0x3d, 0, 0x0010 }, ++ { 0x08b, 0x44, 0, 0x0020 }, ++ { 0x08b, 0x51, 0, 0x0010 }, ++ { 0x090, 0x61, 0, 0xffff }, ++ { 0x091, 0x6d, 0, 0xffff }, ++ { 0x092, 0x86, 0, 0xffff }, ++ { 0x096, 0xa4, 0, 0xffff }, ++ { 0x097, 0xa4, 0, 0xffff }, ++ { 0x098, 0x9f, 0, 0x0020 }, ++ { 0x098, 0xa4, 0, 0x0010 }, ++ { 0x09b, 0xa4, 0, 0xffff }, ++ { 0x0a0, 0x0e, 0, 0xffff }, ++ { 0x0a1, 0x0e, 0, 0xffff }, ++ { 0x0ae, 0x7c, 0, 0xffff }, ++ { 0x0af, 0x7c, 0, 0xffff }, ++ { 0x0b0, 0x9b, 0, 0x0020 }, ++ { 0x0b0, 0x98, 0, 0x0010 }, ++ { 0x0b3, 0x9a, 0, 0xffff }, ++ { 0x0b6, 0x08, 0, 0xffff }, ++ { 0x0b7, 0x08, 0, 0xffff }, ++ { 0x0ea, 0x64, 0, 0x0020 }, ++ { 0x0ea, 0x5c, 0, 0x0010 }, ++ { 0x0ef, 0xff, 0, 0xffff }, ++ { 0x0f8, 0x15, 0, 0xffff }, ++ { 0x0f9, 0x00, 0, 0xffff }, ++ { 0x0f0, 0x30, 0, 0xffff }, ++ { 0x0fd, 0x01, 0, 0xffff }, ++ { 0x1a1, 0x00, 0, 0xffff }, ++ { 0x1a2, 0x00, 0, 0xffff }, ++ { 0x1b1, 0x08, 0, 0xffff }, ++ { 0x1be, 0x9a, 0, 0x0020 }, ++ { 0x1be, 0x96, 0, 0x0010 }, ++ { 0x280, 0x94, 0, 0x0020 }, ++ { 0x281, 0x11, 0, 0x0020 }, ++ { 0x280, 0x94, 0, 0x0010 }, ++ { 0x281, 0x11, 0, 0x0010 }, ++ { 0x282, 0x03, 0, 0xffff }, ++ { 0x283, 0x0a, 0, 0xffff }, ++ { 0x284, 0x80, 0, 0xffff }, ++ { 0x285, 0x03, 0, 0xffff }, ++ { 0x288, 0x94, 0, 0x0020 }, ++ { 0x289, 0x11, 0, 0x0020 }, ++ { 0x288, 0x94, 0, 0x0010 }, ++ { 0x289, 0x11, 0, 0x0010 }, ++ { 0x28a, 0x03, 0, 0xffff }, ++ { 0x28b, 0x0a, 0, 0xffff }, ++ { 0x28c, 0x80, 0, 0xffff }, ++ { 0x28d, 0x03, 0, 0xffff }, ++}; ++ ++static uint8_t get_chassis_type(void) ++{ ++ uint8_t gpio_chassis_type; ++ ++ // Read chassis type from GPIO ++ gpio_chassis_type = get_gpio(70) << 3 | get_gpio(38) << 2 | ++ get_gpio(17) << 1 | get_gpio(0); ++ ++ printk(BIOS_DEBUG, "GPIO chassis type = %#x\n", gpio_chassis_type); ++ ++ // Turn it into internal chassis index ++ switch (gpio_chassis_type) { ++ case 0x08: ++ case 0x0a: ++ return 4; ++ case 0x0b: ++ return 3; ++ case 0x0c: ++ return 5; ++ case 0x0d: // SFF ++ case 0x0e: ++ case 0x0f: ++ return 6; ++ default: ++ die("Unknown GPIO chassis type\n"); ++ } ++ ++} ++ ++static uint8_t get_temp_target(void) ++{ ++ uint8_t val = rdmsr(0x1a2).lo >> 8 & 0xff; ++ if (!val) ++ val = 20; ++ return 0x95 - val; ++} ++ ++static uint16_t get_pkg_power(void) ++{ ++ uint8_t rapl_power_unit = rdmsr(0x606).lo & 0xf; ++ if (rapl_power_unit) ++ rapl_power_unit = 2 << (rapl_power_unit - 1); ++ uint16_t pkg_power_info = rdmsr(0x614).lo & 0x7fff; ++ if (pkg_power_info / rapl_power_unit > 0x41) ++ return 32; ++ else ++ return 16; ++} ++ ++static void apply_hwm_tab(struct hwm_tab_entry *arr, size_t size) ++{ ++ uint8_t temp_target = get_temp_target(); ++ uint16_t pkg_power = get_pkg_power(); ++ ++ printk(BIOS_DEBUG, "Temp target = %#x\n", temp_target); ++ printk(BIOS_DEBUG, "Package power = %#x\n", pkg_power); ++ ++ for (size_t i = 0; i < size; ++i) { ++ // Skip entry if it doesn't apply for this package power ++ if (arr[i].pkg_power != pkg_power && ++ arr[i].pkg_power != HWM_TAB_PKG_POWER_ANY) ++ continue; ++ ++ uint8_t val = arr[i].val; ++ ++ // Add temp target to value if requested (current tables never do) ++ if (arr[i].flags & HWM_TAB_ADD_TEMP_TARGET) ++ val += temp_target; ++ ++ // Perform write ++ ec_write(1, arr[i].addr, val); ++ ++ } ++} ++ ++static void sch5555_ec_hwm_init(void *arg) ++{ ++ uint8_t chassis_type, saved_2fc; ++ ++ printk(BIOS_DEBUG, "OptiPlex 9020 late HWM init\n"); ++ ++ saved_2fc = ec_read(1, 0x2fc); ++ ec_write(1, 0x2fc, 0xa0); ++ ec_write(1, 0x2fd, 0x32); ++ ++ // Apply HWM table based on chassis type ++ chassis_type = get_chassis_type(); ++ printk(BIOS_DEBUG, "Chassis type = %#x\n", chassis_type); ++ switch (chassis_type) { ++ case 3: ++ apply_hwm_tab(HWM_TAB3, ARRAY_SIZE(HWM_TAB3)); ++ break; ++ case 4: ++ apply_hwm_tab(HWM_TAB4, ARRAY_SIZE(HWM_TAB4)); ++ break; ++ case 5: ++ apply_hwm_tab(HWM_TAB5, ARRAY_SIZE(HWM_TAB5)); ++ break; ++ case 6: ++ apply_hwm_tab(HWM_TAB6, ARRAY_SIZE(HWM_TAB6)); ++ break; ++ default: ++ die("Unknown chassis type\n"); ++ } ++ ++ if (CONFIG_MAX_CPUS > 2) { ++ ec_write(1, 0x9e, 0x30); ++ ec_write(1, 0xeb, ec_read(1, 0xea)); ++ } ++ ++ ec_write(1, 0x2fc, saved_2fc); ++ ++ // Apply full speed fan config if requested ++ if (get_uint_option("fan_full_speed", 0)) { ++ printk(BIOS_DEBUG, "Setting full fan speed\n"); ++ ec_write(1, 0x80, 0x60 | ec_read(1, 0x80)); ++ ec_write(1, 0x81, 0x60 | ec_read(1, 0x81)); ++ } ++ ++ ec_read(1, 0xb8); ++ ++ if ((chassis_type == 4 || chassis_type == 5) && ec_read(1, 0x26) == 0) { ++ ec_write(1, 0xa0, ec_read(1, 0xa0) & 0xfb); ++ ec_write(1, 0xa1, ec_read(1, 0xa1) & 0xfb); ++ ec_write(1, 0xa2, ec_read(1, 0xa2) & 0xfb); ++ ec_write(1, 0x8a, 0x99); ++ ec_write(1, 0x8b, 0x47); ++ ec_write(1, 0x8c, 0x91); ++ } ++} ++ ++BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT, sch5555_ec_hwm_init, NULL); +diff --git a/src/mainboard/dell/optiplex_9020/sch5555_ec.c b/src/mainboard/dell/optiplex_9020/sch5555_ec.c +new file mode 100644 +index 0000000000..92244da9ab +--- /dev/null ++++ b/src/mainboard/dell/optiplex_9020/sch5555_ec.c +@@ -0,0 +1,54 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++ ++#include <arch/io.h> ++#include <device/pnp_ops.h> ++#include <superio/smsc/sch555x/sch555x.h> ++#include "sch5555_ec.h" ++ ++uint8_t ec_read(uint8_t addr1, uint16_t addr2) ++{ ++ // clear ec-to-host mailbox ++ uint8_t tmp = inb(SCH555x_EMI_IOBASE + 1); ++ outb(tmp, SCH555x_EMI_IOBASE + 1); ++ ++ // send address ++ outw(0 | 0x8001, SCH555x_EMI_IOBASE + 2); ++ outw((addr1 * 2) | 0x100, SCH555x_EMI_IOBASE + 4); ++ ++ outw(4 | 0x8002, SCH555x_EMI_IOBASE + 2); ++ outl(addr2 << 16, SCH555x_EMI_IOBASE + 4); ++ ++ // send message to ec ++ outb(1, SCH555x_EMI_IOBASE); ++ ++ // wait for ack ++ for (size_t timeout = 0; timeout < 0xfff; ++timeout) ++ if (inb(SCH555x_EMI_IOBASE + 1) & 1) ++ break; ++ ++ // read result ++ outw(4 | 0x8000, SCH555x_EMI_IOBASE + 2); ++ return inb(SCH555x_EMI_IOBASE + 4); ++} ++ ++void ec_write(uint8_t addr1, uint16_t addr2, uint8_t val) ++{ ++ // clear ec-to-host mailbox ++ uint8_t tmp = inb(SCH555x_EMI_IOBASE + 1); ++ outb(tmp, SCH555x_EMI_IOBASE + 1); ++ ++ // send address and value ++ outw(0 | 0x8001, SCH555x_EMI_IOBASE + 2); ++ outw((addr1 * 2) | 0x101, SCH555x_EMI_IOBASE + 4); ++ ++ outw(4 | 0x8002, SCH555x_EMI_IOBASE + 2); ++ outl(val | (addr2 << 16), SCH555x_EMI_IOBASE + 4); ++ ++ // send message to ec ++ outb(1, SCH555x_EMI_IOBASE); ++ ++ // wait for ack ++ for (size_t timeout = 0; timeout < 0xfff; ++timeout) ++ if (inb(SCH555x_EMI_IOBASE + 1) & 1) ++ break; ++} +diff --git a/src/mainboard/dell/optiplex_9020/sch5555_ec.h b/src/mainboard/dell/optiplex_9020/sch5555_ec.h +new file mode 100644 +index 0000000000..6e703ff865 +--- /dev/null ++++ b/src/mainboard/dell/optiplex_9020/sch5555_ec.h +@@ -0,0 +1,7 @@ ++/* SPDX-License-Identifier: GPL-2.0-only */ ++ ++#pragma once ++ ++uint8_t ec_read(uint8_t addr1, uint16_t addr2); ++ ++void ec_write(uint8_t addr1, uint16_t addr2, uint8_t val); +-- +2.39.2 + |