diff options
Diffstat (limited to 'arch/arm/boards/zii-imx8mq-dev/board.c')
-rw-r--r-- | arch/arm/boards/zii-imx8mq-dev/board.c | 176 |
1 files changed, 173 insertions, 3 deletions
diff --git a/arch/arm/boards/zii-imx8mq-dev/board.c b/arch/arm/boards/zii-imx8mq-dev/board.c index 144adb9cef..3581c7251d 100644 --- a/arch/arm/boards/zii-imx8mq-dev/board.c +++ b/arch/arm/boards/zii-imx8mq-dev/board.c @@ -10,24 +10,194 @@ #include <init.h> #include <asm/memory.h> #include <linux/sizes.h> -#include <mach/bbu.h> +#include <mach/imx/bbu.h> +#include "../zii-common/pn-fixup.h" + +#define LRU_FLAG_EGALAX BIT(0) +#define LRU_FLAG_NO_DEB BIT(1) + +struct zii_imx8mq_dev_lru_fixup { + struct zii_pn_fixup fixup; + unsigned int flags; +}; static int zii_imx8mq_dev_init(void) { if (!of_machine_is_compatible("zii,imx8mq-ultra")) return 0; - barebox_set_hostname("imx8mq-zii-rdu3"); + if (of_machine_is_compatible("zii,imx8mq-ultra-zest")) + barebox_set_hostname("zest"); + if (of_machine_is_compatible("zii,imx8mq-ultra-rmb3")) + barebox_set_hostname("rmb3"); - imx8mq_bbu_internal_mmcboot_register_handler("eMMC", "/dev/mmc0", 0); + imx8m_bbu_internal_mmcboot_register_handler("eMMC", "/dev/mmc0", + BBU_HANDLER_FLAG_DEFAULT); + imx8m_bbu_internal_mmc_register_handler("SD", "/dev/mmc1", 0); if (bootsource_get_instance() == 0) of_device_enable_path("/chosen/environment-emmc"); else of_device_enable_path("/chosen/environment-sd"); + defaultenv_append_directory(defaultenv_zii_common); defaultenv_append_directory(defaultenv_imx8mq_zii_dev); return 0; } device_initcall(zii_imx8mq_dev_init); + +static int zii_imx8mq_dev_fixup_egalax_ts(struct device_node *root, void *ctx) +{ + struct device_node *np, * aliases; + + /* + * The 27" unit has a EETI eGalax touchscreen instead of the + * Synaptics RMI4 found on other units. + */ + pr_info("Enabling eGalax touchscreen instead of RMI4\n"); + + np = of_find_compatible_node(root, NULL, "syna,rmi4-i2c"); + if (!np) + return -ENODEV; + + of_device_disable(np); + + np = of_find_compatible_node(root, NULL, "eeti,exc3000"); + if (!np) + return -ENODEV; + + of_device_enable(np); + + aliases = of_find_node_by_path_from(root, "/aliases"); + if (!aliases) + return -ENODEV; + + of_property_write_string(aliases, "touchscreen0", np->full_name); + + return 0; +} + +static int zii_imx8mq_dev_fixup_deb_internal(void) +{ + struct device_node *np, *aliases; + struct device *dev; + + /* + * In the internal DT remove the complete FEC hierarchy and move the + * i210 to be the eth0 interface to allow network boot to work without + * rewriting all the boot scripts. + */ + aliases = of_find_node_by_path("/aliases"); + if (!aliases) + return -ENODEV; + + np = of_find_compatible_node(NULL, NULL, "fsl,imx8mq-fec"); + if (!np) + return -ENODEV; + + of_device_disable(np); + + of_property_write_string(aliases, "ethernet1", np->full_name); + + dev = of_find_device_by_node(np); + if (!dev) + return -ENODEV; + + unregister_device(dev); + + np = of_find_node_by_name_address(NULL, "i210@0"); + if (!np) + return -ENODEV; + + of_property_write_string(aliases, "ethernet0", np->full_name); + + /* Refresh the internal aliases list from the patched DT */ + of_alias_scan(); + + /* + * Disable switch watchdog to make rave_reset_switch a no-op + */ + np = of_find_compatible_node(NULL, NULL, "zii,rave-wdt"); + if (!np) + return -ENODEV; + + of_device_disable(np); + + return 0; +} + +static int zii_imx8mq_dev_fixup_deb(struct device_node *root, void *ctx) +{ + struct device_node *np, *aliases; + struct property *pp; + + /* + * In the kernel DT remove all devices from the DEB, which isn't + * present on this system. + */ + np = of_find_compatible_node(root, NULL, "marvell,mv88e6085"); + if (!np) + return -ENODEV; + + of_device_disable(np); + + np = of_find_compatible_node(root, NULL, "zii,rave-wdt"); + if (!np) + return -ENODEV; + + of_device_disable(np); + + aliases = of_find_node_by_path_from(root, "/aliases"); + if (!aliases) + return -ENODEV; + + pp = of_find_property(aliases, "ethernet-switch0", NULL); + if (!pp) + return -ENODEV; + + of_delete_property(pp); + + return 0; +} + +static void zii_imx8mq_dev_lru_fixup(const struct zii_pn_fixup *context) +{ + const struct zii_imx8mq_dev_lru_fixup *fixup = + container_of(context, struct zii_imx8mq_dev_lru_fixup, fixup); + + if (fixup->flags & LRU_FLAG_EGALAX) + of_register_fixup(zii_imx8mq_dev_fixup_egalax_ts, NULL); + + if (fixup->flags & LRU_FLAG_NO_DEB) { + zii_imx8mq_dev_fixup_deb_internal(); + of_register_fixup(zii_imx8mq_dev_fixup_deb, NULL); + } +} + +#define ZII_IMX8MQ_DEV_LRU_FIXUP(__pn, __flags) \ + { \ + { __pn, zii_imx8mq_dev_lru_fixup }, \ + __flags \ + } + +static const struct zii_imx8mq_dev_lru_fixup zii_imx8mq_dev_lru_fixups[] = { + ZII_IMX8MQ_DEV_LRU_FIXUP("00-5131-02", LRU_FLAG_EGALAX), + ZII_IMX8MQ_DEV_LRU_FIXUP("00-5131-03", LRU_FLAG_EGALAX), + ZII_IMX8MQ_DEV_LRU_FIXUP("00-5170-01", LRU_FLAG_NO_DEB), +}; + +/* + * This initcall needs to be executed before coredevices, so we have a chance + * to fix up the devices with the correct information. + */ +static int zii_imx8mq_dev_process_fixups(void) +{ + if (!of_machine_is_compatible("zii,imx8mq-ultra")) + return 0; + + zii_process_lru_fixups(zii_imx8mq_dev_lru_fixups); + + return 0; +} +postmmu_initcall(zii_imx8mq_dev_process_fixups); |