[PATCH-for-5.2? 2/4] hw/arm/exynos4210: Add SD bus QOM alias on the SoC

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

To be able to select a particular SD bus from the command
line, add a QOM alias on the SoC (using an unique name).

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/arm/exynos4210.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index ced2769b102..a60f08d372a 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -408,6 +408,7 @@ static void exynos4210_realize(DeviceState *socdev, Error **errp)
 
     /*** SD/MMC host controllers ***/
     for (n = 0; n < EXYNOS4210_SDHCI_NUMBER; n++) {
+        g_autofree char *bus_name = NULL;
         DeviceState *carddev;
         BlockBackend *blk;
         DriveInfo *di;
@@ -432,6 +433,10 @@ static void exynos4210_realize(DeviceState *socdev, Error **errp)
         sysbus_mmio_map(busdev, 0, EXYNOS4210_SDHCI_ADDR(n));
         sysbus_connect_irq(busdev, 0, s->irq_table[exynos4210_get_irq(29, n)]);
 
+        /* Alias controller SD bus to the SoC itself */
+        bus_name = g_strdup_printf("sd-bus%d", n);
+        object_property_add_alias(OBJECT(s), bus_name, OBJECT(dev), "sd-bus");
+
         di = drive_get(IF_SD, 0, n);
         blk = di ? blk_by_legacy_dinfo(di) : NULL;
         carddev = qdev_new(TYPE_SD_CARD);
-- 
2.26.2