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-rw-r--r--target/linux/bcm53xx/patches-4.1/184-USB-bcma-add-bcm53xx-support.patch133
1 files changed, 133 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.1/184-USB-bcma-add-bcm53xx-support.patch b/target/linux/bcm53xx/patches-4.1/184-USB-bcma-add-bcm53xx-support.patch
new file mode 100644
index 0000000000..bca555cf6a
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.1/184-USB-bcma-add-bcm53xx-support.patch
@@ -0,0 +1,133 @@
+From b65851f41c22b8c69b8fe9ca7782d19ed2155efc Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Thu, 11 Jun 2015 22:57:39 +0200
+Subject: [PATCH] USB: bcma: add bcm53xx support
+
+The Broadcom ARM SoCs with this usb core need a different
+initialization and they have a different core id. This patch adds
+support for these USB 2.0 core.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/usb/host/bcma-hcd.c | 81 +++++++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 78 insertions(+), 3 deletions(-)
+
+--- a/drivers/usb/host/bcma-hcd.c
++++ b/drivers/usb/host/bcma-hcd.c
+@@ -2,7 +2,8 @@
+ * Broadcom specific Advanced Microcontroller Bus
+ * Broadcom USB-core driver (BCMA bus glue)
+ *
+- * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
++ * Copyright 2011-2015 Hauke Mehrtens <hauke@hauke-m.de>
++ * Copyright 2015 Felix Fietkau <nbd@openwrt.org>
+ *
+ * Based on ssb-ohci driver
+ * Copyright 2007 Michael Buesch <m@bues.ch>
+@@ -88,7 +89,7 @@ static void bcma_hcd_4716wa(struct bcma_
+ }
+
+ /* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
+-static void bcma_hcd_init_chip(struct bcma_device *dev)
++static void bcma_hcd_init_chip_mips(struct bcma_device *dev)
+ {
+ u32 tmp;
+
+@@ -159,6 +160,70 @@ static void bcma_hcd_init_chip(struct bc
+ }
+ }
+
++static void bcma_hcd_init_chip_arm_phy(struct bcma_device *dev)
++{
++ struct bcma_device *arm_core;
++ void __iomem *dmu;
++
++ arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9);
++ if (!arm_core) {
++ dev_err(&dev->dev, "can not find ARM Cortex A9 ihost core\n");
++ return;
++ }
++
++ dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000);
++ if (!dmu) {
++ dev_err(&dev->dev, "can not map ARM Cortex A9 ihost core\n");
++ return;
++ }
++
++ /* Unlock DMU PLL settings */
++ iowrite32(0x0000ea68, dmu + 0x180);
++
++ /* Write USB 2.0 PLL control setting */
++ iowrite32(0x00dd10c3, dmu + 0x164);
++
++ /* Lock DMU PLL settings */
++ iowrite32(0x00000000, dmu + 0x180);
++
++ iounmap(dmu);
++}
++
++static void bcma_hcd_init_chip_arm_hc(struct bcma_device *dev)
++{
++ u32 val;
++
++ /*
++ * Delay after PHY initialized to ensure HC is ready to be configured
++ */
++ usleep_range(1000, 2000);
++
++ /* Set packet buffer OUT threshold */
++ val = bcma_read32(dev, 0x94);
++ val &= 0xffff;
++ val |= 0x80 << 16;
++ bcma_write32(dev, 0x94, val);
++
++ /* Enable break memory transfer */
++ val = bcma_read32(dev, 0x9c);
++ val |= 1;
++ bcma_write32(dev, 0x9c, val);
++}
++
++static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
++{
++ bcma_core_enable(dev, 0);
++
++ if (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4707 ||
++ dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM53018) {
++ if (dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4707 ||
++ dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4708)
++ bcma_hcd_init_chip_arm_phy(dev);
++
++ bcma_hcd_init_chip_arm_hc(dev);
++ }
++}
++
+ static const struct usb_ehci_pdata ehci_pdata = {
+ };
+
+@@ -230,7 +295,16 @@ static int bcma_hcd_probe(struct bcma_de
+ if (!usb_dev)
+ return -ENOMEM;
+
+- bcma_hcd_init_chip(dev);
++ switch (dev->id.id) {
++ case BCMA_CORE_NS_USB20:
++ bcma_hcd_init_chip_arm(dev);
++ break;
++ case BCMA_CORE_USB20_HOST:
++ bcma_hcd_init_chip_mips(dev);
++ break;
++ default:
++ return -ENODEV;
++ }
+
+ /* In AI chips EHCI is addrspace 0, OHCI is 1 */
+ ohci_addr = dev->addr_s[0];
+@@ -299,6 +373,7 @@ static int bcma_hcd_resume(struct bcma_d
+
+ static const struct bcma_device_id bcma_hcd_table[] = {
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
++ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
+ {},
+ };
+ MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);