On Tue, Jul 31, 2018 at 4:57 AM Adam Ford aford173@gmail.com wrote:
On Sun, Jul 22, 2018 at 3:31 PM Lukasz Majewski lukma@denx.de wrote:
Hi Adam,
On Sun, Jul 22, 2018 at 11:45 AM Adam Ford aford173@gmail.com wrote:
With upcoming changes that require CONFIG_BLK, this broke USB Mass Storage on the OMAP3 boards because if CONFIG_BLK is enabled, it assumes that DM_USB is enabled, but it wasn't yet available on omap3 and omap4 boards.
This patch converts the OMAP2430 MUSB glue to support DM_USB and extracts the necessary information based on the device tree.
It's based on the ti-musb driver, but there are enough significant differences in both the architecture and device tree entires between am33xx and OMAP3/OMAP4, that I think it makes sense to continue to keep the separate.
I forgot to mention that, I based this patch on top of an existing patch, that hasn't yet been reviewed which strips out a bunch of dead code https://patchwork.ozlabs.org/patch/943813/
I did it to make it easier for me to read.
This RFC has functional USB Host working, but it's hard coded to be host or peripheral based on the config file. Unfortunately, USB Peripherals like fastboot, etc don't appear to be working at all. At least on omap3_logic (DM3730/OMAP35xx). Any suggestions are appreciated in how to setup the MUSB in OTG mode and get it to start USB in either host or gadget mode.
It appears as if USB gadget mode doesn't support DM yet per doc/driver-model/usb-info.txt
I think I'll respin this a bit with some additional #ifdef's to check for gadget and host mode with DM.
It would still be nice to get this working in DM_USB mode as much as possible. Hopefully the Gadget mode won't take long, but looking at the date doc/driver-model/usb-info.txt, it may not happen soon.
Has it been working from the outset? Is the old musb driver working correctly with gadget infrastructure?
Currently, the omap3_logic board selects the USB_MUSB_GADGET using the new MUSB driver. Host is disabled, but when I do usb start, the device enumerates.
When I enact fastboot usb 0, my host PC shows
[307816.691237] usb 3-2: USB disconnect, device number 39 [307866.180431] usb 3-2: new high-speed USB device number 41 using xhci_hcd [307866.328908] usb 3-2: New USB device found, idVendor=0451, idProduct=d022 [307866.328912] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [307866.328914] usb 3-2: Product: USB download gadget [307866.328916] usb 3-2: Manufacturer: TI
Unless an OTG adapter is connected with a USB device, the only message I get when issing 'usb start' is
USB0: Port not available.I assume that without your patches it works? It was not clear from your commit message.
In gadget mode, yet, see above.
Signed-off-by: Adam Ford aford173@gmail.com
diff --git a/drivers/usb/musb-new/omap2430.c b/drivers/usb/musb-new/omap2430.c index fd63c07789..8b56e1a42a 100644 --- a/drivers/usb/musb-new/omap2430.c +++ b/drivers/usb/musb-new/omap2430.c @@ -9,14 +9,18 @@
- This file is part of the Inventra Controller Driver for Linux.
*/ #include <common.h> +#include <dm.h> +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <linux/usb/otg.h> #include <asm/omap_common.h> #include <asm/omap_musb.h> #include <twl4030.h> #include <twl6030.h> #include "linux-compat.h"
#include "musb_core.h" #include "omap2430.h" +#include "musb_uboot.h"
static inline void omap2430_low_level_exit(struct musb *musb) { @@ -43,6 +47,7 @@ static int omap2430_musb_init(struct musb *musb) u32 l; int status = 0; unsigned long int start;
struct omap_musb_board_data *data = (struct omap_musb_board_data *)musb->controller;@@ -129,3 +134,144 @@ const struct musb_platform_ops omap2430_ops = { .enable = omap2430_musb_enable, .disable = omap2430_musb_disable, };
+#if defined(CONFIG_DM_USB)
+struct omap2430_musb_platdata {
void *base;void *ctrl_mod_base;struct musb_hdrc_platform_data plat;struct musb_hdrc_config musb_config;struct omap_musb_board_data otg_board_data;+};
+static int omap2430_musb_ofdata_to_platdata(struct udevice *dev) +{
struct omap2430_musb_platdata *platdata =dev_get_platdata(dev);
const void *fdt = gd->fdt_blob;int node = dev_of_offset(dev);platdata->base = (void *)dev_read_addr_ptr(dev);platdata->musb_config.multipoint = fdtdec_get_int(fdt, node,"multipoint",
-1);if (platdata->musb_config.multipoint < 0) {pr_err("MUSB multipoint DT entry missing\n");return -ENOENT;}platdata->musb_config.dyn_fifo = 1;platdata->musb_config.num_eps = fdtdec_get_int(fdt, node,"num-eps",-1);
if (platdata->musb_config.num_eps < 0) {pr_err("MUSB num-eps DT entry missing\n");return -ENOENT;}platdata->musb_config.ram_bits = fdtdec_get_int(fdt, node,"ram-bits",-1);
if (platdata->musb_config.ram_bits < 0) {pr_err("MUSB ram-bits DT entry missing\n");return -ENOENT;}platdata->plat.power = fdtdec_get_int(fdt, node,"power", -1);
if (platdata->plat.power < 0) {pr_err("MUSB power DT entry missing\n");return -ENOENT;}platdata->otg_board_data.interface_type =fdtdec_get_int(fdt, node,
"interface-type", -1);
if (platdata->otg_board_data.interface_type < 0) {pr_err("MUSB interface-type DT entry missing\n");return -ENOENT;}+#if 0 /* In a perfect world, mode would be set to OTG, mode 3 from DT */
platdata->plat.mode = fdtdec_get_int(fdt, node,"mode", -1);
if (platdata->plat.mode < 0) {pr_err("MUSB mode DT entry missing\n");return -ENOENT;}+#else /* MUSB_OTG, it doesn't work */ +#ifdef CONFIG_USB_MUSB_HOST /* Host seems to be the only option that works */
platdata->plat.mode = MUSB_HOST;+#else /* For that matter, MUSB_PERIPHERAL doesn't either */
platdata->plat.mode = MUSB_PERIPHERAL;+#endif +#endif
platdata->otg_board_data.dev = dev;platdata->plat.config = &platdata->musb_config;platdata->plat.platform_ops = &omap2430_ops;platdata->plat.board_data = &platdata->otg_board_data;return 0;+}
+static int omap2430_musb_probe(struct udevice *dev) +{ +#ifdef CONFIG_USB_MUSB_HOST
struct musb_host_data *host = dev_get_priv(dev);+#endif
struct omap2430_musb_platdata *platdata =dev_get_platdata(dev);
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);struct omap_musb_board_data *otg_board_data;int ret;void *base = dev_read_addr_ptr(dev);priv->desc_before_addr = true;otg_board_data = &platdata->otg_board_data;+#ifdef CONFIG_USB_MUSB_HOST
host->host = musb_init_controller(&platdata->plat,(struct device*)otg_board_data,
platdata->base);if (!host->host) {return -EIO;}ret = musb_lowlevel_init(host);+#else
ret = musb_register(&platdata->plat,(struct device *)otg_board_data,platdata->base);+#endif
return ret;+}
+static int omap2430_musb_remove(struct udevice *dev) +{
struct musb_host_data *host = dev_get_priv(dev);musb_stop(host->host);return 0;+}
+static const struct udevice_id omap2430_musb_ids[] = {
{ .compatible = "ti,omap3-musb" },{ .compatible = "ti,omap4-musb" },{ }+};
+U_BOOT_DRIVER(omap2430_musb) = {
.name = "omap2430-musb",+#ifdef CONFIG_USB_MUSB_HOST
.id = UCLASS_USB,+#else
.id = UCLASS_USB_DEV_GENERIC,+#endif
.of_match = omap2430_musb_ids,.ofdata_to_platdata = omap2430_musb_ofdata_to_platdata,.probe = omap2430_musb_probe,.remove = omap2430_musb_remove,.ops = &musb_usb_ops,.platdata_auto_alloc_size = sizeof(structomap2430_musb_platdata),
.priv_auto_alloc_size = sizeof(struct musb_host_data),+};
+#endif /* CONFIG_DM_USB */
2.17.1
Best regards,
Lukasz Majewski
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