brcm63xx: improve BCM6318 support

Provide clock toggling for the USB host and slave controller as well as
for the Ethernet Switch. The bcm63xx_enetsw driver is changed not to use
request_mem_region() as the Roboswitch register overlaps with the
Roboswitch IUDMA channels, hence making the driver return -EBUSY. A
future fix might be to use variable size RSET_ENETSW sizes depending on
the chip we are targetting.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39282 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 131 insertions, 1 deletions

diff --git a/target/linux/brcm63xx/patches-3.10/341-MIPS-BCM63XX-add-support-for-BCM6318.patch b/target/linux/brcm63xx/patches-3.10/341-MIPS-BCM63XX-add-support-for-BCM6318.patch
index 74028436c9..d334386c76 100644
--- a/target/linux/brcm63xx/patches-3.10/341-MIPS-BCM63XX-add-support-for-BCM6318.patch
+++ b/target/linux/brcm63xx/patches-3.10/341-MIPS-BCM63XX-add-support-for-BCM6318.patch
@@ -343,7 +343,7 @@ Subject: [PATCH 51/53] MIPS: BCM63XX: add support for BCM6318
 +#define BCM_6318_SPI_BASE		(0xdeadbeef)
 +#define BCM_6318_HSSPI_BASE		(0xb0003000)
 +#define BCM_6318_UDC0_BASE		(0xdeadbeef)
-+#define BCM_6318_USBDMA_BASE		(0xdeadbeef)
++#define BCM_6318_USBDMA_BASE		(0xb0006800)
 +#define BCM_6318_OHCI0_BASE		(0xb0005100)
 +#define BCM_6318_OHCI_PRIV_BASE		(0xdeadbeef)
 +#define BCM_6318_USBH_PRIV_BASE		(0xb0005200)
@@ -601,3 +601,68 @@ Subject: [PATCH 51/53] MIPS: BCM63XX: add support for BCM6318
  		return -ENODEV;
  
  	spi_resources[0].start = bcm63xx_regset_address(RSET_HSSPI);
+--- a/arch/mips/bcm63xx/dev-usb-usbd.c
++++ b/arch/mips/bcm63xx/dev-usb-usbd.c
+@@ -41,7 +41,7 @@ int __init bcm63xx_usbd_register(const s
+ 		IRQ_USBD_RXDMA2, IRQ_USBD_TXDMA2 };
+ 	int i;
+ 
+-	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())
++	if (!BCMCPU_IS_6318() && !BCMCPU_IS_6328() && !BCMCPU_IS_6368())
+ 		return 0;
+ 
+ 	usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);
+--- a/arch/mips/bcm63xx/dev-enet.c
++++ b/arch/mips/bcm63xx/dev-enet.c
+@@ -176,7 +176,8 @@ static int __init register_shared(void)
+ 	else
+ 		shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+ 
+-	if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
++	if (BCMCPU_IS_6318() || BCMCPU_IS_6328() || BCMCPU_IS_6362() ||
++		BCMCPU_IS_6368())
+ 		chan_count = 32;
+ 	else if (BCMCPU_IS_6345())
+ 		chan_count = 8;
+@@ -276,7 +277,8 @@ bcm63xx_enetsw_register(const struct bcm
+ {
+ 	int ret;
+ 
+-	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
++	if (!BCMCPU_IS_6318() && !BCMCPU_IS_6328() && !BCMCPU_IS_6362() &&
++		!BCMCPU_IS_6368())
+ 		return -ENODEV;
+ 
+ 	ret = register_shared();
+@@ -293,7 +295,7 @@ bcm63xx_enetsw_register(const struct bcm
+ 
+ 	memcpy(bcm63xx_enetsw_device.dev.platform_data, pd, sizeof(*pd));
+ 
+-	if (BCMCPU_IS_6328())
++	if (BCMCPU_IS_6318() || BCMCPU_IS_6328())
+ 		enetsw_pd.num_ports = ENETSW_PORTS_6328;
+ 	else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
+ 		enetsw_pd.num_ports = ENETSW_PORTS_6368;
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
+@@ -9,6 +9,8 @@ int __init bcm63xx_gpio_init(void);
+ static inline unsigned long bcm63xx_gpio_count(void)
+ {
+ 	switch (bcm63xx_get_cpu_id()) {
++	case BCM6318_CPU_ID:
++		return 50;
+ 	case BCM6328_CPU_ID:
+ 		return 32;
+ 	case BCM3368_CPU_ID:
+--- a/arch/mips/bcm63xx/dev-usb-ehci.c
++++ b/arch/mips/bcm63xx/dev-usb-ehci.c
+@@ -81,7 +81,8 @@ static struct platform_device bcm63xx_eh
+ 
+ int __init bcm63xx_ehci_register(void)
+ {
+-	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6358() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
++	if (!BCMCPU_IS_6318() && !BCMCPU_IS_6328() && !BCMCPU_IS_6358() &&
++		!BCMCPU_IS_6362() && !BCMCPU_IS_6368())
+ 		return 0;
+ 
+ 	ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
diff --git a/target/linux/brcm63xx/patches-3.10/346-MIPS-BCM63XX-USB-ENETSW-6318-clocks.patch b/target/linux/brcm63xx/patches-3.10/346-MIPS-BCM63XX-USB-ENETSW-6318-clocks.patch
new file mode 100644
index 0000000000..8876f26cbe
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.10/346-MIPS-BCM63XX-USB-ENETSW-6318-clocks.patch
@@ -0,0 +1,50 @@
+--- a/arch/mips/bcm63xx/clk.c
++++ b/arch/mips/bcm63xx/clk.c
+@@ -136,7 +136,11 @@ static struct clk clk_ephy = {
+  */
+ static void enetsw_set(struct clk *clk, int enable)
+ {
+-	if (BCMCPU_IS_6328())
++	if (BCMCPU_IS_6318()) {
++		bcm_hwclock_set(CKCTL_6318_ROBOSW250_EN |
++				CKCTL_6318_ROBOSW025_EN, enable);
++		bcm_ub_hwclock_set(UB_CKCTL_6318_ROBOSW_EN, enable);
++	} else if (BCMCPU_IS_6328())
+ 		bcm_hwclock_set(CKCTL_6328_ROBOSW_EN, enable);
+ 	else if (BCMCPU_IS_6362())
+ 		bcm_hwclock_set(CKCTL_6362_ROBOSW_EN, enable);
+@@ -179,11 +183,22 @@ static struct clk clk_pcm = {
+ };
+ 
+ /*
++ * 6318 USB host & slave clock
++ */
++static void bcm_6318_usb_clock_set(int enable)
++{
++	bcm_hwclock_set(CKCTL_6318_USB_EN, enable);
++	bcm_ub_hwclock_set(UB_CKCTL_6318_USB_EN, enable);
++}
++
++/*
+  * USB host clock
+  */
+ static void usbh_set(struct clk *clk, int enable)
+ {
+-	if (BCMCPU_IS_6328())
++	if (BCMCPU_IS_6318())
++		bcm_6318_usb_clock_set(enable);
++	else if (BCMCPU_IS_6328())
+ 		bcm_hwclock_set(CKCTL_6328_USBH_EN, enable);
+ 	else if (BCMCPU_IS_6348())
+ 		bcm_hwclock_set(CKCTL_6348_USBH_EN, enable);
+@@ -209,7 +224,9 @@ static struct clk clk_usbh = {
+  */
+ static void usbd_set(struct clk *clk, int enable)
+ {
+-	if (BCMCPU_IS_6328())
++	if (BCMCPU_IS_6318())
++		bcm_6318_usb_clock_set(enable);
++	else if (BCMCPU_IS_6328())
+ 		bcm_hwclock_set(CKCTL_6328_USBD_EN, enable);
+ 	else if (BCMCPU_IS_6362())
+ 		bcm_hwclock_set(CKCTL_6362_USBD_EN, enable);
diff --git a/target/linux/brcm63xx/patches-3.10/424-bcm63xx_enet_no_request_mem_region.patch b/target/linux/brcm63xx/patches-3.10/424-bcm63xx_enet_no_request_mem_region.patch
new file mode 100644
index 0000000000..e0271b2c72
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.10/424-bcm63xx_enet_no_request_mem_region.patch
@@ -0,0 +1,15 @@
+--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
++++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+@@ -2787,12 +2787,6 @@ static int bcm_enetsw_probe(struct platf
+ 	if (ret)
+ 		goto out;
+ 
+-	if (!request_mem_region(res_mem->start, resource_size(res_mem),
+-				"bcm63xx_enetsw")) {
+-		ret = -EBUSY;
+-		goto out;
+-	}
+-
+ 	priv->base = ioremap(res_mem->start, resource_size(res_mem));
+ 	if (priv->base == NULL) {
+ 		ret = -ENOMEM;