[brcm63xx] fix SPI register switch and prepare for UDC, thanks to Henk Vergonet (#4783)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14914 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 101 insertions, 15 deletions

diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig
index 57c5a3151b..b21c03e6df 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Kconfig
@@ -4,6 +4,7 @@ menu "CPU support"
 config BCM63XX_CPU_6338
 	bool "support 6338 CPU"
 	select USB_ARCH_HAS_OHCI
+	select USB_ARCH_HAS_UDC
 	select USB_OHCI_BIG_ENDIAN_DESC
 	select USB_OHCI_BIG_ENDIAN_MMIO
 
@@ -11,6 +12,7 @@ config BCM63XX_CPU_6348
 	bool "support 6348 CPU"
 	select HW_HAS_PCI
 	select USB_ARCH_HAS_OHCI
+	select USB_ARCH_HAS_UDC
 	select USB_OHCI_BIG_ENDIAN_DESC
 	select USB_OHCI_BIG_ENDIAN_MMIO
 
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
index c1363895a1..d121274cc3 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/Makefile
@@ -3,6 +3,7 @@ obj-y		+= dev-uart.o
 obj-y		+= dev-pcmcia.o
 obj-y		+= dev-usb-ohci.o
 obj-y		+= dev-usb-ehci.o
+obj-y		+= dev-usb-udc.o
 obj-y		+= dev-enet.o
 obj-y		+= dev-wdt.o
 obj-y		+= dev-spi.o
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 8e71fd12c2..c16ebc8672 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -27,6 +27,7 @@
 #include <bcm63xx_dev_pcmcia.h>
 #include <bcm63xx_dev_usb_ohci.h>
 #include <bcm63xx_dev_usb_ehci.h>
+#include <bcm63xx_dev_usb_udc.h>
 #include <bcm63xx_dev_spi.h>
 #include <board_bcm963xx.h>
 
@@ -163,27 +164,23 @@ static struct board_info __initdata board_FAST2404 = {
 };
 
 static struct board_info __initdata board_DV201AMR = {
-        .name                           = "DV201AMR",
-        .expected_cpu_id                = 0x6348,
+	.name				= "DV201AMR",
+	.expected_cpu_id		= 0x6348,
 
-        .has_enet0                      = 1,
-        .has_enet1                      = 1,
-        .has_pci                        = 1,
+	.has_pci			= 1,
+	.has_ohci0			= 1,
+	.has_udc0			= 1,
 
+	.has_enet0			= 1,
+	.has_enet1			= 1,
 	.enet0 = {
 		.has_phy		= 1,
 		.use_internal_phy	= 1,
 	},
-
-        .enet1 = {
-                .force_speed_100        = 1,
-                .force_duplex_full      = 1,
-        },
-
-
-        .has_ohci0 = 1,
-        .has_pccard = 1,
-        .has_ehci0 = 1,
+	.enet1 = {
+		.force_speed_100	= 1,
+		.force_duplex_full	= 1,
+	},
 };
 
 static struct board_info __initdata board_96348gw_a = {
@@ -525,6 +522,8 @@ int __init board_register_devices(void)
 	if (board.has_ehci0)
 		bcm63xx_ehci_register();
 
+	if (board.has_udc0)
+		bcm63xx_udc_register();
 	/* Generate MAC address for WLAN and
 	 * register our SPROM */
 	if (!board_get_mac_address(bcm63xx_sprom.il0mac)) {
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/clk.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/clk.c
index ae1f41fe52..ce93c30e86 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/clk.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/clk.c
@@ -137,6 +137,26 @@ static struct clk clk_usbh = {
 };
 
 /*
+ * USB slave clock
+ */
+static void usbs_set(struct clk *clk, int enable)
+{
+	u32 mask;
+
+	switch(bcm63xx_get_cpu_id()) {
+	case BCM6338_CPU_ID: mask = CKCTL_6338_USBS_EN; break;
+	case BCM6348_CPU_ID: mask = CKCTL_6348_USBS_EN; break;
+	default:
+		return;
+	}
+	bcm_hwclock_set(mask, enable);
+}
+
+static struct clk clk_usbs = {
+	.set	= usbs_set,
+};
+
+/*
  * SPI clock
  */
 static void spi_set(struct clk *clk, int enable)
@@ -202,6 +222,8 @@ struct clk *clk_get(struct device *dev, const char *id)
 		return &clk_ephy;
 	if (!strcmp(id, "usbh"))
 		return &clk_usbh;
+	if (!strcmp(id, "usbs"))
+		return &clk_usbs;
 	if (!strcmp(id, "spi"))
 		return &clk_spi;
 	if (!strcmp(id, "periph"))
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
index 108ed5f712..f9b6eeba46 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/cpu.c
@@ -37,6 +37,7 @@ static const unsigned long bcm96338_regs_base[] = {
 	[RSET_PERF]		= BCM_6338_PERF_BASE,
 	[RSET_TIMER]		= BCM_6338_TIMER_BASE,
 	[RSET_WDT]		= BCM_6338_WDT_BASE,
+	[RSET_UDC0]		= BCM_6338_UDC0_BASE,
 	[RSET_UART0]		= BCM_6338_UART0_BASE,
 	[RSET_GPIO]		= BCM_6338_GPIO_BASE,
 	[RSET_SPI]		= BCM_6338_SPI_BASE,
@@ -48,6 +49,7 @@ static const int bcm96338_irqs[] = {
 	[IRQ_SPI]		= BCM_6338_SPI_IRQ,
 	[IRQ_UART0]		= BCM_6338_UART0_IRQ,
 	[IRQ_DSL]		= BCM_6338_DSL_IRQ,
+	[IRQ_UDC0]		= BCM_6338_UDC0_IRQ,
 	[IRQ_ENET0]		= BCM_6338_ENET0_IRQ,
 	[IRQ_ENET_PHY]		= BCM_6338_ENET_PHY_IRQ,
 	[IRQ_ENET0_RXDMA]	= BCM_6338_ENET0_RXDMA_IRQ,
@@ -83,6 +85,7 @@ static const unsigned long bcm96348_regs_base[] = {
 	[RSET_OHCI0]		= BCM_6348_OHCI0_BASE,
 	[RSET_OHCI_PRIV]	= BCM_6348_OHCI_PRIV_BASE,
 	[RSET_USBH_PRIV]	= BCM_6348_USBH_PRIV_BASE,
+	[RSET_UDC0]		= BCM_6348_UDC0_BASE,
 	[RSET_MPI]		= BCM_6348_MPI_BASE,
 	[RSET_PCMCIA]		= BCM_6348_PCMCIA_BASE,
 	[RSET_SDRAM]		= BCM_6348_SDRAM_BASE,
@@ -99,6 +102,7 @@ static const int bcm96348_irqs[] = {
 	[IRQ_SPI]		= BCM_6348_SPI_IRQ,
 	[IRQ_UART0]		= BCM_6348_UART0_IRQ,
 	[IRQ_DSL]		= BCM_6348_DSL_IRQ,
+	[IRQ_UDC0]		= BCM_6348_UDC0_IRQ,
 	[IRQ_ENET0]		= BCM_6348_ENET0_IRQ,
 	[IRQ_ENET1]		= BCM_6348_ENET1_IRQ,
 	[IRQ_ENET_PHY]		= BCM_6348_ENET_PHY_IRQ,
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-usb-udc.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-usb-udc.c
new file mode 100644
index 0000000000..4459f2f003
--- /dev/null
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-usb-udc.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2009	Henk Vergonet <Henk.Vergonet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+
+static struct resource udc_resources[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static u64 udc_dmamask = ~(u32)0;
+
+static struct platform_device bcm63xx_udc_device = {
+	.name		= "bcm63xx-udc",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(udc_resources),
+	.resource	= udc_resources,
+	.dev		= {
+		.dma_mask		= &udc_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+};
+
+int __init bcm63xx_udc_register(void)
+{
+	if (!BCMCPU_IS_6338() && !BCMCPU_IS_6348())
+		return 0;
+
+	udc_resources[0].start = bcm63xx_regset_address(RSET_UDC0);
+	udc_resources[0].end = udc_resources[0].start;
+	udc_resources[0].end += RSET_UDC_SIZE - 1;
+	udc_resources[1].start = bcm63xx_get_irq_number(IRQ_UDC0);
+	return platform_device_register(&bcm63xx_udc_device);
+}