diff options
Diffstat (limited to 'drivers/core/root.c')
| -rw-r--r-- | drivers/core/root.c | 85 |
1 files changed, 70 insertions, 15 deletions
diff --git a/drivers/core/root.c b/drivers/core/root.c index 9bc682c..d9a19c5 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -11,6 +11,7 @@ #include <fdtdec.h> #include <log.h> #include <malloc.h> +#include <asm-generic/sections.h> #include <asm/global_data.h> #include <linux/libfdt.h> #include <dm/acpi.h> @@ -129,6 +130,36 @@ void fix_devices(void) } } +static int dm_setup_inst(void) +{ + DM_ROOT_NON_CONST = DM_DEVICE_GET(root); + + if (CONFIG_IS_ENABLED(OF_PLATDATA_RT)) { + struct udevice_rt *urt; + void *base; + int n_ents; + uint size; + + /* Allocate the udevice_rt table */ + n_ents = ll_entry_count(struct udevice, udevice); + urt = calloc(n_ents, sizeof(struct udevice_rt)); + if (!urt) + return log_msg_ret("urt", -ENOMEM); + gd_set_dm_udevice_rt(urt); + + /* Now allocate space for the priv/plat data, and copy it in */ + size = __priv_data_end - __priv_data_start; + + base = calloc(1, size); + if (!base) + return log_msg_ret("priv", -ENOMEM); + memcpy(base, __priv_data_start, size); + gd_set_dm_priv_base(base); + } + + return 0; +} + int dm_init(bool of_live) { int ret; @@ -140,8 +171,12 @@ int dm_init(bool of_live) dm_warn("Virtual root driver already exists!\n"); return -EINVAL; } - gd->uclass_root = &DM_UCLASS_ROOT_S_NON_CONST; - INIT_LIST_HEAD(DM_UCLASS_ROOT_NON_CONST); + if (CONFIG_IS_ENABLED(OF_PLATDATA_INST)) { + gd->uclass_root = &uclass_head; + } else { + gd->uclass_root = &DM_UCLASS_ROOT_S_NON_CONST; + INIT_LIST_HEAD(DM_UCLASS_ROOT_NON_CONST); + } if (IS_ENABLED(CONFIG_NEEDS_MANUAL_RELOC)) { fix_drivers(); @@ -149,14 +184,23 @@ int dm_init(bool of_live) fix_devices(); } - ret = device_bind_by_name(NULL, false, &root_info, &DM_ROOT_NON_CONST); - if (ret) - return ret; - if (CONFIG_IS_ENABLED(OF_CONTROL)) - dev_set_ofnode(DM_ROOT_NON_CONST, ofnode_root()); - ret = device_probe(DM_ROOT_NON_CONST); - if (ret) - return ret; + if (CONFIG_IS_ENABLED(OF_PLATDATA_INST)) { + ret = dm_setup_inst(); + if (ret) { + log_debug("dm_setup_inst() failed: %d\n", ret); + return ret; + } + } else { + ret = device_bind_by_name(NULL, false, &root_info, + &DM_ROOT_NON_CONST); + if (ret) + return ret; + if (CONFIG_IS_ENABLED(OF_CONTROL)) + dev_set_ofnode(DM_ROOT_NON_CONST, ofnode_root()); + ret = device_probe(DM_ROOT_NON_CONST); + if (ret) + return ret; + } return 0; } @@ -185,7 +229,7 @@ int dm_scan_plat(bool pre_reloc_only) { int ret; - if (CONFIG_IS_ENABLED(OF_PLATDATA)) { + if (CONFIG_IS_ENABLED(OF_PLATDATA_DRIVER_RT)) { struct driver_rt *dyn; int n_ents; @@ -303,6 +347,15 @@ __weak int dm_scan_other(bool pre_reloc_only) return 0; } +#if CONFIG_IS_ENABLED(OF_PLATDATA_INST) && CONFIG_IS_ENABLED(READ_ONLY) +void *dm_priv_to_rw(void *priv) +{ + long offset = priv - (void *)__priv_data_start; + + return gd_dm_priv_base() + offset; +} +#endif + /** * dm_scan() - Scan tables to bind devices * @@ -347,10 +400,12 @@ int dm_init_and_scan(bool pre_reloc_only) debug("dm_init() failed: %d\n", ret); return ret; } - ret = dm_scan(pre_reloc_only); - if (ret) { - log_debug("dm_scan() failed: %d\n", ret); - return ret; + if (!CONFIG_IS_ENABLED(OF_PLATDATA_INST)) { + ret = dm_scan(pre_reloc_only); + if (ret) { + log_debug("dm_scan() failed: %d\n", ret); + return ret; + } } return 0; |