diff options
Diffstat (limited to 'src/mainboard/siemens')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/mainboard.c | 83 |
1 files changed, 82 insertions, 1 deletions
diff --git a/src/mainboard/siemens/mc_apl1/mainboard.c b/src/mainboard/siemens/mc_apl1/mainboard.c index fd19cd13ae..18cb660ea1 100644 --- a/src/mainboard/siemens/mc_apl1/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/mainboard.c @@ -15,14 +15,17 @@ */ #include <console/console.h> +#include <delay.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include <gpio.h> #include <hwilib.h> #include <i210.h> +#include <intelblocks/cpulib.h> #include <intelblocks/lpc_lib.h> #include <intelblocks/pcr.h> +#include <intelblocks/systemagent.h> #include <soc/pci_devs.h> #include <soc/pcr_ids.h> #include <string.h> @@ -35,6 +38,11 @@ #define MAX_PATH_DEPTH 12 #define MAX_NUM_MAPPINGS 10 +#define BIOS_MAILBOX_WAIT_MAX_MS 1000 +#define BIOS_MAILBOX_DATA 0x7080 +#define BIOS_MAILBOX_INTERFACE 0x7084 +#define RUN_BUSY_STS (1 << 31) + /** \brief This function can decide if a given MAC address is valid or not. * Currently, addresses filled with 0xff or 0x00 are not valid. * @param mac Buffer to the MAC address to check @@ -110,6 +118,77 @@ enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[6]) return CB_ERR; } +/** \brief This function fixes an accuracy issue with IDT PMIC. + * The current reported system power consumption is higher than the + * actual consumption. With a correction of slope and offset for Vcc + * and Vnn, the issue is solved. + */ +static void config_pmic_imon(void) +{ + struct stopwatch sw; + uint32_t power_max; + + printk(BIOS_DEBUG, "PMIC: Configure PMIC IMON - Start\n"); + + /* Calculate CPU TDP in mW */ + power_max = cpu_get_power_max(); + printk(BIOS_INFO, "PMIC: CPU TDP %d mW.\n", power_max); + + /* + * Fix Vnn slope and offset value. + * slope = 0x4a4 # 2.32 + * offset = 0xfa0d # -2.975 + */ + stopwatch_init_msecs_expire(&sw, BIOS_MAILBOX_WAIT_MAX_MS); + /* Read P_CR_BIOS_MAILBOX_INTERFACE_0_0_0_MCHBAR and check RUN_BUSY. */ + while ((MCHBAR32(BIOS_MAILBOX_INTERFACE) & RUN_BUSY_STS)) { + if (stopwatch_expired(&sw)) { + printk(BIOS_ERR, "PMIC: Power consumption measurement " + "setup fails for Vnn.\n"); + return; + } + } + /* Set Vnn values into P_CR_BIOS_MAILBOX_DATA_0_0_0_MCHBAR. */ + MCHBAR32(BIOS_MAILBOX_DATA) = 0xfa0d04a4; + /* Set command, address and busy bit. */ + MCHBAR32(BIOS_MAILBOX_INTERFACE) = 0x8000011d; + printk(BIOS_DEBUG, "PMIC: Fix Vnn slope and offset value.\n"); + + /* + * Fix Vcc slope and offset value. + * Premium and High SKU: + * slope = 0x466 # 2.2 + * offset = 0xe833 # -11.9 + * Low and Intermediate SKU: + * slope = 0x3b3 # 1.85 + * offset = 0xed33 # -9.4 + */ + stopwatch_init_msecs_expire(&sw, BIOS_MAILBOX_WAIT_MAX_MS); + while ((MCHBAR32(BIOS_MAILBOX_INTERFACE) & RUN_BUSY_STS)) { + if (stopwatch_expired(&sw)) { + printk(BIOS_ERR, "PMIC: Power consumption measurement " + "setup fails for Vcc.\n"); + return; + } + } + + /* + * CPU TDP limit between Premium/High and Low/Intermediate SKU + * is 9010 mW. + */ + if (power_max > 9010) { + MCHBAR32(BIOS_MAILBOX_DATA) = 0xe8330466; + MCHBAR32(BIOS_MAILBOX_INTERFACE) = 0x8000001d; + printk(BIOS_INFO, "PMIC: Fix Vcc for Premium SKU.\n"); + } else { + MCHBAR32(BIOS_MAILBOX_DATA) = 0xed3303b3; + MCHBAR32(BIOS_MAILBOX_INTERFACE) = 0x8000001d; + printk(BIOS_INFO, "PMIC: Fix Vcc for Low SKU.\n"); + } + + printk(BIOS_DEBUG, "PMIC: Configure PMIC IMON - End\n"); +} + static void mainboard_init(void *chip_info) { const struct pad_config *pads; @@ -117,6 +196,8 @@ static void mainboard_init(void *chip_info) pads = brd_gpio_table(&num); gpio_configure_pads(pads, num); + + config_pmic_imon(); } static void mainboard_final(void *chip_info) @@ -125,7 +206,7 @@ static void mainboard_final(void *chip_info) uint16_t cmd = 0; device_t dev = NULL; - /** + /* * Set up the DP2LVDS converter. * ptn3460_init() may only be executed after i2c bus init. */ |