arm: mvebu: turris_omnia: print board info as Turris Mox
[oweals/u-boot.git] / board / CZ.NIC / turris_omnia / turris_omnia.c
index 86926f805036e7f630c8d6d8f7d65020c9c4f9bb..54efd2d4c95aa6dd8b3c7d512847461eba643bce 100644 (file)
@@ -1,14 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017 Marek Behun <marek.behun@nic.cz>
  * Copyright (C) 2016 Tomas Hlavacek <tomas.hlavacek@nic.cz>
  *
  * Derived from the code for
  *   Marvell/db-88f6820-gp by Stefan Roese <sr@denx.de>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
+#include <environment.h>
 #include <i2c.h>
 #include <miiphy.h>
 #include <netdev.h>
 #include <dm/uclass.h>
 #include <fdt_support.h>
 #include <time.h>
-
-#ifdef CONFIG_ATSHA204A
 # include <atsha204a-i2c.h>
-#endif
 
 #ifdef CONFIG_WDT_ORION
 # include <wdt.h>
 #endif
 
-#include "../drivers/ddr/marvell/a38x/ddr3_a38x_topology.h"
+#include "../drivers/ddr/marvell/a38x/ddr3_init.h"
 #include <../serdes/a38x/high_speed_env_spec.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define OMNIA_I2C_EEPROM_DM_NAME       "i2c@0"
-#define OMNIA_I2C_EEPROM               0x54
-#define OMNIA_I2C_EEPROM_CONFIG_ADDR   0x0
-#define OMNIA_I2C_EEPROM_ADDRLEN       2
+#define OMNIA_I2C_BUS_NAME             "i2c@11000->i2cmux@70->i2c@0"
+
+#define OMNIA_I2C_MCU_CHIP_ADDR                0x2a
+#define OMNIA_I2C_MCU_CHIP_LEN         1
+
+#define OMNIA_I2C_EEPROM_CHIP_ADDR     0x54
+#define OMNIA_I2C_EEPROM_CHIP_LEN      2
 #define OMNIA_I2C_EEPROM_MAGIC         0x0341a034
 
-#define OMNIA_I2C_MCU_DM_NAME          "i2c@0"
-#define OMNIA_I2C_MCU_ADDR_STATUS      0x1
-#define OMNIA_I2C_MCU_SATA             0x20
-#define OMNIA_I2C_MCU_CARDDET          0x10
-#define OMNIA_I2C_MCU                  0x2a
-#define OMNIA_I2C_MCU_WDT_ADDR         0x0b
+enum mcu_commands {
+       CMD_GET_STATUS_WORD     = 0x01,
+       CMD_GET_RESET           = 0x09,
+       CMD_WATCHDOG_STATE      = 0x0b,
+};
+
+enum status_word_bits {
+       CARD_DET_STSBIT         = 0x0010,
+       MSATA_IND_STSBIT        = 0x0020,
+};
 
 #define OMNIA_ATSHA204_OTP_VERSION     0
 #define OMNIA_ATSHA204_OTP_SERIAL      1
 #define OMNIA_ATSHA204_OTP_MAC0                3
 #define OMNIA_ATSHA204_OTP_MAC1                4
 
-#define MVTWSI_ARMADA_DEBUG_REG                0x8c
-
 /*
  * Those values and defines are taken from the Marvell U-Boot version
  * "u-boot-2013.01-2014_T3.0"
@@ -87,43 +89,97 @@ static struct serdes_map board_serdes_map_sata[] = {
        {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}
 };
 
-static bool omnia_detect_sata(void)
+static struct udevice *omnia_get_i2c_chip(const char *name, uint addr,
+                                         uint offset_len)
 {
        struct udevice *bus, *dev;
        int ret;
-       u16 mode;
 
-       puts("SERDES0 card detect: ");
-
-       if (uclass_get_device_by_name(UCLASS_I2C, OMNIA_I2C_MCU_DM_NAME, &bus)) {
-               puts("Cannot find MCU bus!\n");
-               return false;
+       ret = uclass_get_device_by_name(UCLASS_I2C, OMNIA_I2C_BUS_NAME, &bus);
+       if (ret) {
+               printf("Cannot get I2C bus %s: uclass_get_device_by_name failed: %i\n",
+                      OMNIA_I2C_BUS_NAME, ret);
+               return NULL;
        }
 
-       ret = i2c_get_chip(bus, OMNIA_I2C_MCU, 1, &dev);
+       ret = i2c_get_chip(bus, addr, offset_len, &dev);
        if (ret) {
-               puts("Cannot get MCU chip!\n");
-               return false;
+               printf("Cannot get %s I2C chip: i2c_get_chip failed: %i\n",
+                      name, ret);
+               return NULL;
        }
 
-       ret = dm_i2c_read(dev, OMNIA_I2C_MCU_ADDR_STATUS, (uchar *) &mode, 2);
+       return dev;
+}
+
+static int omnia_mcu_read(u8 cmd, void *buf, int len)
+{
+       struct udevice *chip;
+
+       chip = omnia_get_i2c_chip("MCU", OMNIA_I2C_MCU_CHIP_ADDR,
+                                 OMNIA_I2C_MCU_CHIP_LEN);
+       if (!chip)
+               return -ENODEV;
+
+       return dm_i2c_read(chip, cmd, buf, len);
+}
+
+#ifndef CONFIG_SPL_BUILD
+static int omnia_mcu_write(u8 cmd, const void *buf, int len)
+{
+       struct udevice *chip;
+
+       chip = omnia_get_i2c_chip("MCU", OMNIA_I2C_MCU_CHIP_ADDR,
+                                 OMNIA_I2C_MCU_CHIP_LEN);
+       if (!chip)
+               return -ENODEV;
+
+       return dm_i2c_write(chip, cmd, buf, len);
+}
+
+static bool disable_mcu_watchdog(void)
+{
+       int ret;
+
+       puts("Disabling MCU watchdog... ");
+
+       ret = omnia_mcu_write(CMD_WATCHDOG_STATE, "\x00", 1);
        if (ret) {
-               puts("I2C read failed! Default PEX\n");
+               printf("omnia_mcu_write failed: %i\n", ret);
                return false;
        }
 
-       if (!(mode & OMNIA_I2C_MCU_CARDDET)) {
-               puts("NONE\n");
+       puts("disabled\n");
+
+       return true;
+}
+#endif
+
+static bool omnia_detect_sata(void)
+{
+       int ret;
+       u16 stsword;
+
+       puts("MiniPCIe/mSATA card detection... ");
+
+       ret = omnia_mcu_read(CMD_GET_STATUS_WORD, &stsword, sizeof(stsword));
+       if (ret) {
+               printf("omnia_mcu_read failed: %i, defaulting to MiniPCIe card\n",
+                      ret);
                return false;
        }
 
-       if (mode & OMNIA_I2C_MCU_SATA) {
-               puts("SATA\n");
-               return true;
-       } else {
-               puts("PEX\n");
+       if (!(stsword & CARD_DET_STSBIT)) {
+               puts("none\n");
                return false;
        }
+
+       if (stsword & MSATA_IND_STSBIT)
+               puts("mSATA\n");
+       else
+               puts("MiniPCIe\n");
+
+       return stsword & MSATA_IND_STSBIT ? true : false;
 }
 
 int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
@@ -148,54 +204,70 @@ struct omnia_eeprom {
 
 static bool omnia_read_eeprom(struct omnia_eeprom *oep)
 {
-       struct udevice *bus, *dev;
-       int ret, crc, retry = 3;
+       struct udevice *chip;
+       u32 crc;
+       int ret;
+
+       chip = omnia_get_i2c_chip("EEPROM", OMNIA_I2C_EEPROM_CHIP_ADDR,
+                                 OMNIA_I2C_EEPROM_CHIP_LEN);
 
-       if (uclass_get_device_by_name(UCLASS_I2C, OMNIA_I2C_EEPROM_DM_NAME, &bus)) {
-               puts("Cannot find EEPROM bus\n");
+       if (!chip)
                return false;
-       }
 
-       ret = i2c_get_chip(bus, OMNIA_I2C_EEPROM, OMNIA_I2C_EEPROM_ADDRLEN, &dev);
+       ret = dm_i2c_read(chip, 0, (void *)oep, sizeof(*oep));
        if (ret) {
-               puts("Cannot get EEPROM chip\n");
+               printf("dm_i2c_read failed: %i, cannot read EEPROM\n", ret);
                return false;
        }
 
-       for (; retry > 0; --retry) {
-               ret = dm_i2c_read(dev, OMNIA_I2C_EEPROM_CONFIG_ADDR, (uchar *) oep, sizeof(struct omnia_eeprom));
-               if (ret)
-                       continue;
-
-               if (oep->magic != OMNIA_I2C_EEPROM_MAGIC) {
-                       puts("I2C EEPROM missing magic number!\n");
-                       continue;
-               }
-
-               crc = crc32(0, (unsigned char *) oep,
-                           sizeof(struct omnia_eeprom) - 4);
-               if (crc == oep->crc) {
-                       break;
-               } else {
-                       printf("CRC of EEPROM memory config failed! "
-                              "calc=0x%04x saved=0x%04x\n", crc, oep->crc);
-               }
+       if (oep->magic != OMNIA_I2C_EEPROM_MAGIC) {
+               printf("bad EEPROM magic number (%08x, should be %08x)\n",
+                      oep->magic, OMNIA_I2C_EEPROM_MAGIC);
+               return false;
        }
 
-       if (!retry) {
-               puts("I2C EEPROM read failed!\n");
+       crc = crc32(0, (void *)oep, sizeof(*oep) - 4);
+       if (crc != oep->crc) {
+               printf("bad EEPROM CRC (stored %08x, computed %08x)\n",
+                      oep->crc, crc);
                return false;
        }
 
        return true;
 }
 
+static int omnia_get_ram_size_gb(void)
+{
+       static int ram_size;
+       struct omnia_eeprom oep;
+
+       if (!ram_size) {
+               /* Get the board config from EEPROM */
+               if (omnia_read_eeprom(&oep)) {
+                       debug("Memory config in EEPROM: 0x%02x\n", oep.ramsize);
+
+                       if (oep.ramsize == 0x2)
+                               ram_size = 2;
+                       else
+                               ram_size = 1;
+               } else {
+                       /* Hardcoded fallback */
+                       puts("Memory config from EEPROM read failed!\n");
+                       puts("Falling back to default 1 GiB!\n");
+                       ram_size = 1;
+               }
+       }
+
+       return ram_size;
+}
+
 /*
  * Define the DDR layout / topology here in the board file. This will
  * be used by the DDR3 init code in the SPL U-Boot version to configure
  * the DDR3 controller.
  */
-static struct hws_topology_map board_topology_map_1g = {
+static struct mv_ddr_topology_map board_topology_map_1g = {
+       DEBUG_LEVEL_ERROR,
        0x1, /* active interfaces */
        /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
        { { { {0x1, 0, 0, 0},
@@ -204,17 +276,20 @@ static struct hws_topology_map board_topology_map_1g = {
              {0x1, 0, 0, 0},
              {0x1, 0, 0, 0} },
            SPEED_BIN_DDR_1600K,        /* speed_bin */
-           BUS_WIDTH_16,               /* memory_width */
-           MEM_4G,                     /* mem_size */
-           DDR_FREQ_800,               /* frequency */
-           0, 0,                       /* cas_l cas_wl */
-           HWS_TEMP_NORMAL,            /* temperature */
-           HWS_TIM_2T} },              /* timing (force 2t) */
-       5,                              /* Num Of Bus Per Interface*/
-       BUS_MASK_32BIT                  /* Busses mask */
+           MV_DDR_DEV_WIDTH_16BIT,     /* memory_width */
+           MV_DDR_DIE_CAP_4GBIT,                       /* mem_size */
+           MV_DDR_FREQ_800,            /* frequency */
+           0, 0,                       /* cas_wl cas_l */
+           MV_DDR_TEMP_NORMAL,         /* temperature */
+           MV_DDR_TIM_2T} },           /* timing */
+       BUS_MASK_32BIT,                 /* Busses mask */
+       MV_DDR_CFG_DEFAULT,             /* ddr configuration data source */
+       { {0} },                        /* raw spd data */
+       {0}                             /* timing parameters */
 };
 
-static struct hws_topology_map board_topology_map_2g = {
+static struct mv_ddr_topology_map board_topology_map_2g = {
+       DEBUG_LEVEL_ERROR,
        0x1, /* active interfaces */
        /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
        { { { {0x1, 0, 0, 0},
@@ -223,49 +298,24 @@ static struct hws_topology_map board_topology_map_2g = {
              {0x1, 0, 0, 0},
              {0x1, 0, 0, 0} },
            SPEED_BIN_DDR_1600K,        /* speed_bin */
-           BUS_WIDTH_16,               /* memory_width */
-           MEM_8G,                     /* mem_size */
-           DDR_FREQ_800,               /* frequency */
-           0, 0,                       /* cas_l cas_wl */
-           HWS_TEMP_NORMAL,            /* temperature */
-           HWS_TIM_2T} },              /* timing (force 2t) */
-       5,                              /* Num Of Bus Per Interface*/
-       BUS_MASK_32BIT                  /* Busses mask */
+           MV_DDR_DEV_WIDTH_16BIT,     /* memory_width */
+           MV_DDR_DIE_CAP_8GBIT,                       /* mem_size */
+           MV_DDR_FREQ_800,            /* frequency */
+           0, 0,                       /* cas_wl cas_l */
+           MV_DDR_TEMP_NORMAL,         /* temperature */
+           MV_DDR_TIM_2T} },           /* timing */
+       BUS_MASK_32BIT,                 /* Busses mask */
+       MV_DDR_CFG_DEFAULT,             /* ddr configuration data source */
+       { {0} },                        /* raw spd data */
+       {0}                             /* timing parameters */
 };
 
-struct hws_topology_map *ddr3_get_topology_map(void)
+struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
 {
-       static int mem = 0;
-       struct omnia_eeprom oep;
-
-       /* Get the board config from EEPROM */
-       if (mem == 0) {
-               if(!omnia_read_eeprom(&oep))
-                       goto out;
-
-               printf("Memory config in EEPROM: 0x%02x\n", oep.ramsize);
-
-               if (oep.ramsize == 0x2)
-                       mem = 2;
-               else
-                       mem = 1;
-       }
-
-out:
-       /* Hardcoded fallback */
-       if (mem == 0) {
-               puts("WARNING: Memory config from EEPROM read failed.\n");
-               puts("Falling back to default 1GiB map.\n");
-               mem = 1;
-       }
-
-       /* Return the board topology as defined in the board code */
-       if (mem == 1)
-               return &board_topology_map_1g;
-       if (mem == 2)
+       if (omnia_get_ram_size_gb() == 2)
                return &board_topology_map_2g;
-
-       return &board_topology_map_1g;
+       else
+               return &board_topology_map_1g;
 }
 
 #ifndef CONFIG_SPL_BUILD
@@ -280,14 +330,12 @@ static int set_regdomain(void)
                puts("EEPROM regdomain read failed.\n");
 
        printf("Regdomain set to %s\n", rd);
-       return setenv("regdomain", rd);
+       return env_set("regdomain", rd);
 }
 #endif
 
 int board_early_init_f(void)
 {
-       u32 i2c_debug_reg;
-
        /* Configure MPP */
        writel(0x11111111, MVEBU_MPP_BASE + 0x00);
        writel(0x11111111, MVEBU_MPP_BASE + 0x04);
@@ -310,95 +358,22 @@ int board_early_init_f(void)
        writel(OMNIA_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
        writel(OMNIA_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
 
-       /* Disable I2C debug mode blocking 0x64 I2C address */
-       i2c_debug_reg = readl(MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);
-       i2c_debug_reg &= ~(1<<18);
-       writel(i2c_debug_reg, MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);
-
        return 0;
 }
 
-#ifndef CONFIG_SPL_BUILD
-static bool disable_mcu_watchdog(void)
-{
-       struct udevice *bus, *dev;
-       int ret, retry = 3;
-       uchar buf[1] = {0x0};
-
-       if (uclass_get_device_by_name(UCLASS_I2C, OMNIA_I2C_MCU_DM_NAME, &bus)) {
-               puts("Cannot find MCU bus! Can not disable MCU WDT.\n");
-               return false;
-       }
-
-       ret = i2c_get_chip(bus, OMNIA_I2C_MCU, 1, &dev);
-       if (ret) {
-               puts("Cannot get MCU chip! Can not disable MCU WDT.\n");
-               return false;
-       }
-
-       for (; retry > 0; --retry)
-               if (!dm_i2c_write(dev, OMNIA_I2C_MCU_WDT_ADDR, (uchar *) buf, 1))
-                       break;
-
-       if (retry <= 0) {
-               puts("I2C MCU watchdog failed to disable!\n");
-               return false;
-       }
-
-       return true;
-}
-#endif
-
-#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT_ORION)
-static struct udevice *watchdog_dev = NULL;
-#endif
-
 int board_init(void)
 {
-       /* adress of boot parameters */
+       /* address of boot parameters */
        gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
 
 #ifndef CONFIG_SPL_BUILD
-# ifdef CONFIG_WDT_ORION
-       if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
-               puts("Cannot find Armada 385 watchdog!\n");
-       } else {
-               puts("Enabling Armada 385 watchdog.\n");
-               wdt_start(watchdog_dev, (u32) 25000000 * 120, 0);
-       }
-# endif
-
-       if (disable_mcu_watchdog())
-               puts("Disabled MCU startup watchdog.\n");
-
+       disable_mcu_watchdog();
        set_regdomain();
 #endif
 
        return 0;
 }
 
-#ifdef CONFIG_WATCHDOG
-/* Called by macro WATCHDOG_RESET */
-void watchdog_reset(void)
-{
-# if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT_ORION)
-       static ulong next_reset = 0;
-       ulong now;
-
-       if (!watchdog_dev)
-               return;
-
-       now = timer_get_us();
-
-       /* Do not reset the watchdog too often */
-       if (now > next_reset) {
-               wdt_reset(watchdog_dev);
-               next_reset = now + 1000;
-       }
-# endif
-}
-#endif
-
 int board_late_init(void)
 {
 #ifndef CONFIG_SPL_BUILD
@@ -408,12 +383,11 @@ int board_late_init(void)
        return 0;
 }
 
-#ifdef CONFIG_ATSHA204A
 static struct udevice *get_atsha204a_dev(void)
 {
-       static struct udevice *dev = NULL;
+       static struct udevice *dev;
 
-       if (dev != NULL)
+       if (dev)
                return dev;
 
        if (uclass_get_device_by_name(UCLASS_MISC, "atsha204a@64", &dev)) {
@@ -423,14 +397,12 @@ static struct udevice *get_atsha204a_dev(void)
 
        return dev;
 }
-#endif
 
 int checkboard(void)
 {
        u32 version_num, serial_num;
        int err = 1;
 
-#ifdef CONFIG_ATSHA204A
        struct udevice *dev = get_atsha204a_dev();
 
        if (dev) {
@@ -440,13 +412,13 @@ int checkboard(void)
 
                err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
                                     OMNIA_ATSHA204_OTP_VERSION,
-                                    (u8 *) &version_num);
+                                    (u8 *)&version_num);
                if (err)
                        goto out;
 
                err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
                                     OMNIA_ATSHA204_OTP_SERIAL,
-                                    (u8 *) &serial_num);
+                                    (u8 *)&serial_num);
                if (err)
                        goto out;
 
@@ -454,13 +426,13 @@ int checkboard(void)
        }
 
 out:
-#endif
-
+       printf("Turris Omnia:\n");
+       printf("  RAM size: %i MiB\n", omnia_get_ram_size_gb() * 1024);
        if (err)
-               printf("Board: Turris Omnia (ver N/A). SN: N/A\n");
+               printf("  Serial Number: unknown\n");
        else
-               printf("Board: Turris Omnia SNL %08X%08X\n",
-                      be32_to_cpu(version_num), be32_to_cpu(serial_num));
+               printf("  Serial Number: %08X%08X\n", be32_to_cpu(version_num),
+                      be32_to_cpu(serial_num));
 
        return 0;
 }
@@ -478,7 +450,6 @@ static void increment_mac(u8 *mac)
 
 int misc_init_r(void)
 {
-#ifdef CONFIG_ATSHA204A
        int err;
        struct udevice *dev = get_atsha204a_dev();
        u8 mac0[4], mac1[4], mac[6];
@@ -510,21 +481,19 @@ int misc_init_r(void)
        mac[5] = mac1[3];
 
        if (is_valid_ethaddr(mac))
-               eth_setenv_enetaddr("ethaddr", mac);
+               eth_env_set_enetaddr("ethaddr", mac);
 
        increment_mac(mac);
 
        if (is_valid_ethaddr(mac))
-               eth_setenv_enetaddr("eth1addr", mac);
+               eth_env_set_enetaddr("eth1addr", mac);
 
        increment_mac(mac);
 
        if (is_valid_ethaddr(mac))
-               eth_setenv_enetaddr("eth2addr", mac);
+               eth_env_set_enetaddr("eth2addr", mac);
 
 out:
-#endif
-
        return 0;
 }