diff options
Diffstat (limited to 'arch/arm/boards/zii-common')
| -rw-r--r-- | arch/arm/boards/zii-common/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/boards/zii-common/board.c | 75 | ||||
| -rw-r--r-- | arch/arm/boards/zii-common/pn-fixup.c | 32 | ||||
| -rw-r--r-- | arch/arm/boards/zii-common/pn-fixup.h | 93 | ||||
| -rw-r--r-- | arch/arm/boards/zii-common/switch-cmd.c | 73 |
5 files changed, 274 insertions, 0 deletions
diff --git a/arch/arm/boards/zii-common/Makefile b/arch/arm/boards/zii-common/Makefile new file mode 100644 index 0000000000..fcc5cdf97d --- /dev/null +++ b/arch/arm/boards/zii-common/Makefile @@ -0,0 +1 @@ +obj-y += board.o switch-cmd.o pn-fixup.o diff --git a/arch/arm/boards/zii-common/board.c b/arch/arm/boards/zii-common/board.c new file mode 100644 index 0000000000..20ec64d2d4 --- /dev/null +++ b/arch/arm/boards/zii-common/board.c @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2019 Zodiac Inflight Innovation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <common.h> +#include <globalvar.h> +#include <init.h> +#include <fs.h> + +static int rdu_networkconfig(void) +{ + static char *rdu_netconfig; + struct device_d *sp_dev; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2") && + !of_machine_is_compatible("zii,imx51-rdu1")) + return 0; + + sp_dev = get_device_by_name("sp"); + if (!sp_dev) { + pr_warn("no sp device found, network config not available!\n"); + return -ENODEV; + } + + rdu_netconfig = basprintf("ip=%s:::%s::eth0:", + dev_get_param(sp_dev, "ipaddr"), + dev_get_param(sp_dev, "netmask")); + + globalvar_add_simple_string("linux.bootargs.rdu_network", + &rdu_netconfig); + + return 0; +} +late_initcall(rdu_networkconfig); + +#define I210_CFGWORD_PCIID_157B 0x157b1a11 +static int rdu_i210_invm(void) +{ + int fd; + u32 val; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2") && + !of_machine_is_compatible("zii,imx8mq-ultra")) + return 0; + + fd = open("/dev/e1000-invm0", O_RDWR); + if (fd < 0) { + pr_err("could not open e1000 iNVM device!\n"); + return fd; + } + + pread(fd, &val, sizeof(val), 0); + if (val == I210_CFGWORD_PCIID_157B) { + pr_debug("i210 already programmed correctly\n"); + return 0; + } + + val = I210_CFGWORD_PCIID_157B; + pwrite(fd, &val, sizeof(val), 0); + + return 0; +} +late_initcall(rdu_i210_invm); diff --git a/arch/arm/boards/zii-common/pn-fixup.c b/arch/arm/boards/zii-common/pn-fixup.c new file mode 100644 index 0000000000..a665199917 --- /dev/null +++ b/arch/arm/boards/zii-common/pn-fixup.c @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2019 Zodiac Inflight Innovation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <common.h> +#include <init.h> +#include <linux/nvmem-consumer.h> + +#include "pn-fixup.h" + +char *zii_read_part_number(const char *cell_name, size_t cell_size) +{ + struct device_node *np; + + np = of_find_node_by_name(NULL, "device-info"); + if (!np) { + pr_warn("No device information found\n"); + return ERR_PTR(-ENOENT); + } + + return nvmem_cell_get_and_read(np, cell_name, cell_size); +} diff --git a/arch/arm/boards/zii-common/pn-fixup.h b/arch/arm/boards/zii-common/pn-fixup.h new file mode 100644 index 0000000000..39b848bd00 --- /dev/null +++ b/arch/arm/boards/zii-common/pn-fixup.h @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2019 Zodiac Inflight Innovation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __ZII_PN_FIXUP__ +#define __ZII_PN_FIXUP__ + +struct zii_pn_fixup { + const char *pn; + void (*callback) (const struct zii_pn_fixup *fixup); +}; + +char *zii_read_part_number(const char *, size_t); +/** + * __zii_process_fixups - Process array of ZII part number based fixups + * + * @__fixups: Array of part number base fixups + * @__cell_name: Name of the NVMEM cell containing the part number + * @__cell_size: Size of the NVMEM cell containing the part number + * + * NOTE: Keeping this code as a marcro allows us to avoid restricting + * the type of __fixups to an array of struct zii_pn_fixup. This is + * really convenient becuase it allows us to do things like + * + * struct zii_foo_fixup { + * struct zii_pn_fixup parent; + * type1 custom_field_1 + * type2 custom_field_2 + * ... + * }; + * + * ... + * + * const struct zii_foo_fixup foo_fixups[] = { + * { fixup1 }, + * { fixup2 }, + * { fixup3 }, + * }; + * + * ... + * + * __zii_process_fixups(foo_fixups, "blah", BLAH_LENGTH); + * + * which allows us to have the most compact definition of array of + * fixups + */ +#define __zii_process_fixups(__fixups, __cell_name, __cell_size) \ + do { \ + char *__pn = zii_read_part_number(__cell_name, \ + __cell_size); \ + const struct zii_pn_fixup *__fixup; \ + unsigned int __i; \ + bool __match_found = false; \ + \ + if (WARN_ON(IS_ERR(__pn))) \ + break; \ + \ + for (__i = 0; __i < ARRAY_SIZE(__fixups); __i++) { \ + __fixup = \ + (const struct zii_pn_fixup *) &__fixups[__i]; \ + \ + if (strstr(__pn, __fixup->pn)) { \ + pr_debug("%s->%pS\n", __func__, \ + __fixup->callback); \ + __match_found = true; \ + __fixup->callback(__fixup); \ + } \ + } \ + if (!__match_found) \ + pr_err("No config fixups found for P/N %s!\n", __pn); \ + free(__pn); \ + } while (0) + +#define DDS_PART_NUMBER_SIZE 15 +#define LRU_PART_NUMBER_SIZE 15 + +#define zii_process_dds_fixups(_fixups) \ + __zii_process_fixups(_fixups, "dds-part-number", DDS_PART_NUMBER_SIZE) + +#define zii_process_lru_fixups(_fixups) \ + __zii_process_fixups(_fixups, "lru-part-number", LRU_PART_NUMBER_SIZE) + +#endif /* __ZII_PN_FIXUP__ */ diff --git a/arch/arm/boards/zii-common/switch-cmd.c b/arch/arm/boards/zii-common/switch-cmd.c new file mode 100644 index 0000000000..30438053a1 --- /dev/null +++ b/arch/arm/boards/zii-common/switch-cmd.c @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2018 Zodiac Inflight Innovation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include <command.h> +#include <common.h> +#include <i2c/i2c.h> +#include <linux/mfd/rave-sp.h> + +static int do_rdu2_switch_reset(void) +{ + struct i2c_client client; + u8 reg; + + client.adapter = i2c_get_adapter(1); + if (!client.adapter) + return -ENODEV; + + /* address of the switch watchdog microcontroller */ + client.addr = 0x38; + reg = 0x78; + /* set switch reset time to 100ms */ + i2c_write_reg(&client, 0x0a, ®, 1); + /* reset the switch */ + reg = 0x01; + i2c_write_reg(&client, 0x0d, ®, 1); + /* issue dummy command to work around firmware bug */ + i2c_read_reg(&client, 0x01, ®, 1); + + return 0; +} + +static int do_rdu1_switch_reset(void) +{ + struct device_d *sp_dev = get_device_by_name("sp"); + struct rave_sp *sp = sp_dev->priv; + u8 cmd[] = { + [0] = RAVE_SP_CMD_RESET_ETH_SWITCH, + [1] = 0 + }; + + if (IS_ENABLED(CONFIG_RAVE_SP_CORE)) + return rave_sp_exec(sp, cmd, sizeof(cmd), NULL, 0); + else + return -ENODEV; +} + +static int do_rave_switch_reset(int argc, char *argv[]) +{ + if (of_machine_is_compatible("zii,imx6q-zii-rdu2") || + of_machine_is_compatible("zii,imx6qp-zii-rdu2")) + return do_rdu2_switch_reset(); + + if (of_machine_is_compatible("zii,imx51-rdu1")) + return do_rdu1_switch_reset(); + + return -ENODEV; +} + +BAREBOX_CMD_START(rave_reset_switch) + .cmd = do_rave_switch_reset, + BAREBOX_CMD_DESC("reset ethernet switch on RDU") + BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP) +BAREBOX_CMD_END |