Changeset 712a10b in mainline

Timestamp:

2012-04-04T18:50:40Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

063ae706

Parents:

6b3ee0c5

Message:

amdm37,root: Enable USB host clock before launching drivers.

Makes device registers accessible.

File:

• uspace/drv/infrastructure/rootamdm37x/rootamdm37x.c (modified) (2 diffs)

uspace/drv/infrastructure/rootamdm37x/rootamdm37x.c ¶

@@ -41 +41 @@
 #include <ops/hw_res.h>
 #include <stdio.h>
+#include <ddi.h>
 
 #define NAME  "rootamdm37x"
@@ -160 +161 @@
 static int rootamdm37x_dev_add(ddf_dev_t *dev)
 {
+        {
+        /* Enable USB host clocks */
+        uint32_t *reg = NULL;
+        const int ret = pio_enable((void*)0x48005400, 8192, (void**)&reg);
+        assert(ret == EOK);
+        assert(reg);
+        /* offset 0x10 (0x4 int32)[0] enables fclk,
+         * offset 0x00 (0x0 int32)[0 and 1] enables iclk,
+         * offset 0x30 (0xc int32)[0] enables autoidle
+         */
+        reg[0x4] = 0x1;
+        reg[0x0] = 0x3;
+        reg[0xc] = 0x1;
+        }
+
         /* Register functions */
         if (!rootamdm37x_add_fun(dev, "ohci", "usb/host=ohci", &ohci))