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-rw-r--r--roms/u-boot/board/CZ.NIC/turris_omnia/turris_omnia.c559
1 files changed, 559 insertions, 0 deletions
diff --git a/roms/u-boot/board/CZ.NIC/turris_omnia/turris_omnia.c b/roms/u-boot/board/CZ.NIC/turris_omnia/turris_omnia.c
new file mode 100644
index 000000000..8b2f94f95
--- /dev/null
+++ b/roms/u-boot/board/CZ.NIC/turris_omnia/turris_omnia.c
@@ -0,0 +1,559 @@
+// 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>
+ */
+
+#include <common.h>
+#include <env.h>
+#include <i2c.h>
+#include <init.h>
+#include <log.h>
+#include <miiphy.h>
+#include <net.h>
+#include <netdev.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <dm/uclass.h>
+#include <fdt_support.h>
+#include <time.h>
+#include <linux/bitops.h>
+#include <u-boot/crc.h>
+# include <atsha204a-i2c.h>
+
+#include "../drivers/ddr/marvell/a38x/ddr3_init.h"
+#include <../serdes/a38x/high_speed_env_spec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#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
+
+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
+
+/*
+ * Those values and defines are taken from the Marvell U-Boot version
+ * "u-boot-2013.01-2014_T3.0"
+ */
+#define OMNIA_GPP_OUT_ENA_LOW \
+ (~(BIT(1) | BIT(4) | BIT(6) | BIT(7) | BIT(8) | BIT(9) | \
+ BIT(10) | BIT(11) | BIT(19) | BIT(22) | BIT(23) | BIT(25) | \
+ BIT(26) | BIT(27) | BIT(29) | BIT(30) | BIT(31)))
+#define OMNIA_GPP_OUT_ENA_MID \
+ (~(BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(15) | \
+ BIT(16) | BIT(17) | BIT(18)))
+
+#define OMNIA_GPP_OUT_VAL_LOW 0x0
+#define OMNIA_GPP_OUT_VAL_MID 0x0
+#define OMNIA_GPP_POL_LOW 0x0
+#define OMNIA_GPP_POL_MID 0x0
+
+static struct serdes_map board_serdes_map_pex[] = {
+ {PEX0, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}
+};
+
+static struct serdes_map board_serdes_map_sata[] = {
+ {SATA0, SERDES_SPEED_6_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+ {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+ {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}
+};
+
+static struct udevice *omnia_get_i2c_chip(const char *name, uint addr,
+ uint offset_len)
+{
+ struct udevice *bus, *dev;
+ int ret;
+
+ 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, addr, offset_len, &dev);
+ if (ret) {
+ printf("Cannot get %s I2C chip: i2c_get_chip failed: %i\n",
+ name, ret);
+ return NULL;
+ }
+
+ 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) {
+ printf("omnia_mcu_write failed: %i\n", ret);
+ return false;
+ }
+
+ 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 (!(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)
+{
+ if (omnia_detect_sata()) {
+ *serdes_map_array = board_serdes_map_sata;
+ *count = ARRAY_SIZE(board_serdes_map_sata);
+ } else {
+ *serdes_map_array = board_serdes_map_pex;
+ *count = ARRAY_SIZE(board_serdes_map_pex);
+ }
+
+ return 0;
+}
+
+struct omnia_eeprom {
+ u32 magic;
+ u32 ramsize;
+ char region[4];
+ u32 crc;
+};
+
+static bool omnia_read_eeprom(struct omnia_eeprom *oep)
+{
+ struct udevice *chip;
+ u32 crc;
+ int ret;
+
+ chip = omnia_get_i2c_chip("EEPROM", OMNIA_I2C_EEPROM_CHIP_ADDR,
+ OMNIA_I2C_EEPROM_CHIP_LEN);
+
+ if (!chip)
+ return false;
+
+ ret = dm_i2c_read(chip, 0, (void *)oep, sizeof(*oep));
+ if (ret) {
+ printf("dm_i2c_read failed: %i, cannot read EEPROM\n", ret);
+ return false;
+ }
+
+ 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;
+ }
+
+ 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 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},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0} },
+ SPEED_BIN_DDR_1600K, /* speed_bin */
+ 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 */
+ NOT_COMBINED, /* ddr twin-die combined */
+ { {0} }, /* raw spd data */
+ {0} /* timing parameters */
+};
+
+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},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0},
+ {0x1, 0, 0, 0} },
+ SPEED_BIN_DDR_1600K, /* speed_bin */
+ 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 */
+ NOT_COMBINED, /* ddr twin-die combined */
+ { {0} }, /* raw spd data */
+ {0} /* timing parameters */
+};
+
+struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
+{
+ if (omnia_get_ram_size_gb() == 2)
+ return &board_topology_map_2g;
+ else
+ return &board_topology_map_1g;
+}
+
+#ifndef CONFIG_SPL_BUILD
+static int set_regdomain(void)
+{
+ struct omnia_eeprom oep;
+ char rd[3] = {' ', ' ', 0};
+
+ if (omnia_read_eeprom(&oep))
+ memcpy(rd, &oep.region, 2);
+ else
+ puts("EEPROM regdomain read failed.\n");
+
+ printf("Regdomain set to %s\n", rd);
+ return env_set("regdomain", rd);
+}
+
+static void handle_reset_button(void)
+{
+ const char * const vars[1] = { "bootcmd_rescue", };
+ int ret;
+ u8 reset_status;
+
+ /*
+ * Ensure that bootcmd_rescue has always stock value, so that running
+ * run bootcmd_rescue
+ * always works correctly.
+ */
+ env_set_default_vars(1, (char * const *)vars, 0);
+
+ ret = omnia_mcu_read(CMD_GET_RESET, &reset_status, 1);
+ if (ret) {
+ printf("omnia_mcu_read failed: %i, reset status unknown!\n",
+ ret);
+ return;
+ }
+
+ env_set_ulong("omnia_reset", reset_status);
+
+ if (reset_status) {
+ const char * const vars[2] = {
+ "bootcmd",
+ "distro_bootcmd",
+ };
+
+ /*
+ * Set the above envs to their default values, in case the user
+ * managed to break them.
+ */
+ env_set_default_vars(2, (char * const *)vars, 0);
+
+ /* Ensure bootcmd_rescue is used by distroboot */
+ env_set("boot_targets", "rescue");
+
+ printf("RESET button was pressed, overwriting bootcmd!\n");
+ } else {
+ /*
+ * In case the user somehow managed to save environment with
+ * boot_targets=rescue, reset boot_targets to default value.
+ * This could happen in subsequent commands if bootcmd_rescue
+ * failed.
+ */
+ if (!strcmp(env_get("boot_targets"), "rescue")) {
+ const char * const vars[1] = {
+ "boot_targets",
+ };
+
+ env_set_default_vars(1, (char * const *)vars, 0);
+ }
+ }
+}
+#endif
+
+int board_early_init_f(void)
+{
+ /* Configure MPP */
+ writel(0x11111111, MVEBU_MPP_BASE + 0x00);
+ writel(0x11111111, MVEBU_MPP_BASE + 0x04);
+ writel(0x11244011, MVEBU_MPP_BASE + 0x08);
+ writel(0x22222111, MVEBU_MPP_BASE + 0x0c);
+ writel(0x22200002, MVEBU_MPP_BASE + 0x10);
+ writel(0x30042022, MVEBU_MPP_BASE + 0x14);
+ writel(0x55550555, MVEBU_MPP_BASE + 0x18);
+ writel(0x00005550, MVEBU_MPP_BASE + 0x1c);
+
+ /* Set GPP Out value */
+ writel(OMNIA_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
+ writel(OMNIA_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
+
+ /* Set GPP Polarity */
+ writel(OMNIA_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
+ writel(OMNIA_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
+
+ /* Set GPP Out Enable */
+ writel(OMNIA_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
+ writel(OMNIA_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+#ifndef CONFIG_SPL_BUILD
+ disable_mcu_watchdog();
+#endif
+
+ return 0;
+}
+
+int board_late_init(void)
+{
+#ifndef CONFIG_SPL_BUILD
+ set_regdomain();
+ handle_reset_button();
+#endif
+ pci_init();
+
+ return 0;
+}
+
+static struct udevice *get_atsha204a_dev(void)
+{
+ static struct udevice *dev;
+
+ if (dev)
+ return dev;
+
+ if (uclass_get_device_by_name(UCLASS_MISC, "atsha204a@64", &dev)) {
+ puts("Cannot find ATSHA204A on I2C bus!\n");
+ dev = NULL;
+ }
+
+ return dev;
+}
+
+int checkboard(void)
+{
+ u32 version_num, serial_num;
+ int err = 1;
+
+ struct udevice *dev = get_atsha204a_dev();
+
+ if (dev) {
+ err = atsha204a_wakeup(dev);
+ if (err)
+ goto out;
+
+ err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
+ OMNIA_ATSHA204_OTP_VERSION,
+ (u8 *)&version_num);
+ if (err)
+ goto out;
+
+ err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
+ OMNIA_ATSHA204_OTP_SERIAL,
+ (u8 *)&serial_num);
+ if (err)
+ goto out;
+
+ atsha204a_sleep(dev);
+ }
+
+out:
+ printf("Turris Omnia:\n");
+ printf(" RAM size: %i MiB\n", omnia_get_ram_size_gb() * 1024);
+ if (err)
+ printf(" Serial Number: unknown\n");
+ else
+ printf(" Serial Number: %08X%08X\n", be32_to_cpu(version_num),
+ be32_to_cpu(serial_num));
+
+ return 0;
+}
+
+static void increment_mac(u8 *mac)
+{
+ int i;
+
+ for (i = 5; i >= 3; i--) {
+ mac[i] += 1;
+ if (mac[i])
+ break;
+ }
+}
+
+int misc_init_r(void)
+{
+ int err;
+ struct udevice *dev = get_atsha204a_dev();
+ u8 mac0[4], mac1[4], mac[6];
+
+ if (!dev)
+ goto out;
+
+ err = atsha204a_wakeup(dev);
+ if (err)
+ goto out;
+
+ err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
+ OMNIA_ATSHA204_OTP_MAC0, mac0);
+ if (err)
+ goto out;
+
+ err = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
+ OMNIA_ATSHA204_OTP_MAC1, mac1);
+ if (err)
+ goto out;
+
+ atsha204a_sleep(dev);
+
+ mac[0] = mac0[1];
+ mac[1] = mac0[2];
+ mac[2] = mac0[3];
+ mac[3] = mac1[1];
+ mac[4] = mac1[2];
+ mac[5] = mac1[3];
+
+ if (is_valid_ethaddr(mac))
+ eth_env_set_enetaddr("eth1addr", mac);
+
+ increment_mac(mac);
+
+ if (is_valid_ethaddr(mac))
+ eth_env_set_enetaddr("eth2addr", mac);
+
+ increment_mac(mac);
+
+ if (is_valid_ethaddr(mac))
+ eth_env_set_enetaddr("ethaddr", mac);
+
+out:
+ return 0;
+}
+