diff options
| author | Simon Glass <sjg@chromium.org> | 2015-02-27 22:06:30 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-23 09:05:51 -0600 |
| commit | 36fa61dc612e363fb60840a06333fc37ec3fb68e (patch) | |
| tree | 51115d5d2bd9a6e6c6c1583d537e48f0c321bd31 /drivers/core | |
| parent | ab9fd2e83a0f781534fbb8a2b88c724a29b7f20a (diff) | |
| download | talos-obmc-uboot-36fa61dc612e363fb60840a06333fc37ec3fb68e.tar.gz talos-obmc-uboot-36fa61dc612e363fb60840a06333fc37ec3fb68e.zip | |
dm: core: Allow sequence alias support to be removed for SPL
In many cases SPL only uses a single serial port and there is no need for
alias sequence support. We will just use the serial port pointed to by
stdout-path in the /chosen node.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/core/device.c | 28 |
2 files changed, 24 insertions, 13 deletions
diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig index 75d182d27f..2861b43079 100644 --- a/drivers/core/Kconfig +++ b/drivers/core/Kconfig @@ -46,3 +46,12 @@ config DM_STDIO Normally serial drivers register with stdio so that they can be used as normal output devices. In SPL we don't normally use stdio, so we can omit this feature. + +config DM_SEQ_ALIAS + bool "Support numbered aliases in device tree" + depends on DM + default y + help + Most boards will have a '/aliases' node containing the path to + numbered devices (e.g. serial0 = &serial0). This feature can be + disabled if it is not required, to save code space in SPL. diff --git a/drivers/core/device.c b/drivers/core/device.c index df81b8e63d..7f24243fd7 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -56,21 +56,23 @@ int device_bind(struct udevice *parent, const struct driver *drv, dev->seq = -1; dev->req_seq = -1; -#ifdef CONFIG_OF_CONTROL - /* - * Some devices, such as a SPI bus, I2C bus and serial ports are - * numbered using aliases. - * - * This is just a 'requested' sequence, and will be - * resolved (and ->seq updated) when the device is probed. - */ - if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) { - if (uc->uc_drv->name && of_offset != -1) { - fdtdec_get_alias_seq(gd->fdt_blob, uc->uc_drv->name, - of_offset, &dev->req_seq); + if (IS_ENABLED(CONFIG_OF_CONTROL) && IS_ENABLED(CONFIG_DM_SEQ_ALIAS)) { + /* + * Some devices, such as a SPI bus, I2C bus and serial ports + * are numbered using aliases. + * + * This is just a 'requested' sequence, and will be + * resolved (and ->seq updated) when the device is probed. + */ + if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) { + if (uc->uc_drv->name && of_offset != -1) { + fdtdec_get_alias_seq(gd->fdt_blob, + uc->uc_drv->name, of_offset, + &dev->req_seq); + } } } -#endif + if (!dev->platdata && drv->platdata_auto_alloc_size) { dev->flags |= DM_FLAG_ALLOC_PDATA; dev->platdata = calloc(1, drv->platdata_auto_alloc_size); |
