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ipq40xx: Enable USB device mode through dts patching

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This commit enables USB device mode through dts patching.
To enable 'setenv usb_mode device' to be executed in u-boot 
environment before booting the kernel.

Change-Id: I2bcba292a514d04eed7e941a7feba00600fc1fc9
Signed-off-by: Sasirekaa Madhesu <smadhesu@codeaurora.org>
This commit is contained in:
Sasirekaa Madhesu 2018-02-22 17:34:07 +05:30
parent 1fbb054c7e
commit da5968ecbd
1 changed files with 53 additions and 0 deletions
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53
board/qca/arm/ipq40xx/ipq40xx.c
View file

@ -35,6 +35,7 @@
#include "ipq_phy.h"
#define DLOAD_MAGIC_COOKIE 0x10
#define TCSR_USB_HSPHY_DEVICE_MODE 0x00C700E70
DECLARE_GLOBAL_DATA_PTR;
qca_mmc mmc_host;
@ -316,6 +317,58 @@ void ipq_fdt_fixup_socinfo(void *blob)
void ipq_fdt_fixup_usb_device_mode(void *blob)
{
int nodeoff, ret, i;
int phy_mode = htonl(TCSR_USB_HSPHY_DEVICE_MODE);
const char *mode = "peripheral";
const char *node[] = {"/soc/ssphy", "/soc/hsphy", "/soc/usb3"};
char *usb_cfg;
usb_cfg = getenv("usb_mode");
if (!usb_cfg)
return;
if (strcmp(usb_cfg, "device"))
return;
nodeoff = fdt_path_offset(blob, "/soc/tcsr");
if (nodeoff < 0) {
printf("ipq: fdt fixup unable to find node /soc/tcsr\n");
return;
}
ret = fdt_setprop(blob, nodeoff, "ipq,usb-hsphy-mode-select",
&phy_mode, sizeof(phy_mode));
if (ret != 0) {
printf("ipq: unable to set prop: %d\n", ret);
return;
}
phy_mode = 0;
for (i = 0; i < (sizeof(node) / sizeof(node[0])); i++) {
nodeoff = fdt_path_offset(blob, node[i]);
if (nodeoff < 0) {
printf("ipq: fdt fixup unable to find node %s\n",
node[i]);
continue;
}
ret = fdt_setprop(blob, nodeoff, "qca,host",
&phy_mode, sizeof(phy_mode));
if (ret != 0) {
printf("ipq: unable to set prop: %d\n", ret);
continue;
}
}
nodeoff = fdt_path_offset(blob, "/soc/usb3/dwc3");
if (nodeoff < 0) {
printf("ipq: fdt fixup unable to find node /soc/usb3/dwc3\n");
return;
}
ret = fdt_setprop(blob, nodeoff, "dr_mode",
mode, (strlen(mode) + 1));
if (ret != 0) {
printf("ipq: unable to set prop: %d\n", ret);
return;
}
return;
}