Content-Security-Policy: default-src 'none'
Content-Type: text/plain; charset=UTF-8
Content-Length: 592
Content-Disposition: inline; filename="012-extra_optimization.patch"
Last-Modified: Sun, 23 Feb 2025 09:38:16 GMT
Expires: Wed, 21 Feb 2035 09:38:16 GMT
ETag: "27bb7691f85f663d9a209d1b2e11beb502a28ea3"

--- a/Makefile
+++ b/Makefile
@@ -537,7 +537,7 @@ all: vmlinux
 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 KBUILD_CFLAGS	+= -Os
 else
-KBUILD_CFLAGS	+= -O2
+KBUILD_CFLAGS	+= -O2 -fno-reorder-blocks -fno-tree-ch
 endif
 
 include $(srctree)/arch/$(SRCARCH)/Makefile
@@ -579,6 +579,9 @@ endif
 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 
+# improve gcc optimization
+CFLAGS += $(call cc-option,-funit-at-a-time,)
+
 # warn about C99 declaration after statement
 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 
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<td class='lines'><pre><code><style>pre { line-height: 125%; margin: 0; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span>The bcm63xx SOC has an integrated EHCI controller, this patch adds
platform device registration and change board code to register
EHCI device when necessary.

Signed-off-by: Maxime Bizon &lt;mbizon@freebox.fr&gt;
<span class="gd">---</span>
 arch/mips/bcm63xx/Kconfig                          |    2 +
 arch/mips/bcm63xx/Makefile                         |    2 +-
 arch/mips/bcm63xx/boards/board_bcm963xx.c          |    4 ++
 arch/mips/bcm63xx/dev-usb-ehci.c                   |   49 ++++++++++++++++++++
 .../asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h        |    6 ++
 5 files changed, 62 insertions(+), 1 deletions(-)
 create mode 100644 arch/mips/bcm63xx/dev-usb-ehci.c
 create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h

<span class="gh">diff --git a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig</span>
<span class="gh">index 76fbbf7..4aa21e8 100644</span>
<span class="gd">--- a/arch/mips/bcm63xx/Kconfig</span>
<span class="gi">+++ b/arch/mips/bcm63xx/Kconfig</span>
<span class="gu">@@ -26,6 +26,8 @@ config BCM63XX_CPU_6358</span>
 	select USB_ARCH_HAS_OHCI
 	select USB_OHCI_BIG_ENDIAN_DESC
 	select USB_OHCI_BIG_ENDIAN_MMIO
<span class="gi">+	select USB_ARCH_HAS_EHCI</span>
<span class="gi">+	select USB_EHCI_BIG_ENDIAN_MMIO</span>
 endmenu
 
 source &quot;arch/mips/bcm63xx/boards/Kconfig&quot;
<span class="gh">diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile</span>
<span class="gh">index be5d7ad..6e229c2 100644</span>
<span class="gd">--- a/arch/mips/bcm63xx/Makefile</span>
<span class="gi">+++ b/arch/mips/bcm63xx/Makefile</span>
<span class="gu">@@ -1,6 +1,6 @@</span>
 obj-y		+= clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
 		   dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
<span class="gd">-		   dev-usb-ohci.o</span>
<span class="gi">+		   dev-usb-ohci.o dev-usb-ehci.o</span>
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 obj-y		+= boards/
<span class="gh">diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c</span>
<span class="gh">index e2c0c36..b0d3db3 100644</span>
<span class="gd">--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c</span>
<span class="gi">+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c</span>
<span class="gu">@@ -25,6 +25,7 @@</span>
 #include &lt;bcm63xx_dev_dsp.h&gt;
 #include &lt;bcm63xx_dev_pcmcia.h&gt;
 #include &lt;bcm63xx_dev_usb_ohci.h&gt;
<span class="gi">+#include &lt;bcm63xx_dev_usb_ehci.h&gt;</span>
 #include &lt;board_bcm963xx.h&gt;
 
 #define PFX	&quot;board_bcm963xx: &quot;
<span class="gu">@@ -804,6 +805,9 @@ int __init board_register_devices(void)</span>
 	    !board_get_mac_address(board.enet1.mac_addr))
 		bcm63xx_enet_register(1, &amp;board.enet1);
 
<span class="gi">+	if (board.has_ehci0)</span>
<span class="gi">+		bcm63xx_ehci_register();</span>
<span class="gi">+</span>
 	if (board.has_ohci0)
 		bcm63xx_ohci_register();
 
<span class="gh">diff --git a/arch/mips/bcm63xx/dev-usb-ehci.c b/arch/mips/bcm63xx/dev-usb-ehci.c</span>
new file mode 100644
<span class="gh">index 0000000..4bdd675</span>
<span class="gd">--- /dev/null</span>
<span class="gi">+++ b/arch/mips/bcm63xx/dev-usb-ehci.c</span>
<span class="gu">@@ -0,0 +1,49 @@</span>
<span class="gi">+/*</span>
<span class="gi">+ * This file is subject to the terms and conditions of the GNU General Public</span>
<span class="gi">+ * License.  See the file &quot;COPYING&quot; in the main directory of this archive</span>
<span class="gi">+ * for more details.</span>
<span class="gi">+ *</span>
<span class="gi">+ * Copyright (C) 2010 Maxime Bizon &lt;mbizon@freebox.fr&gt;</span>
<span class="gi">+ */</span>
<span class="gi">+</span>
<span class="gi">+#include &lt;linux/init.h&gt;</span>
<span class="gi">+#include &lt;linux/kernel.h&gt;</span>
<span class="gi">+#include &lt;linux/platform_device.h&gt;</span>
<span class="gi">+#include &lt;bcm63xx_cpu.h&gt;</span>
<span class="gi">+#include &lt;bcm63xx_dev_usb_ehci.h&gt;</span>
<span class="gi">+</span>
<span class="gi">+static struct resource ehci_resources[] = {</span>
<span class="gi">+	{</span>
<span class="gi">+		/* start &amp; end filled at runtime */</span>
<span class="gi">+		.flags		= IORESOURCE_MEM,</span>
<span class="gi">+	},</span>
<span class="gi">+	{</span>
<span class="gi">+		/* start filled at runtime */</span>
<span class="gi">+		.flags		= IORESOURCE_IRQ,</span>
<span class="gi">+	},</span>
<span class="gi">+};</span>
<span class="gi">+</span>
<span class="gi">+static u64 ehci_dmamask = ~(u32)0;</span>
<span class="gi">+</span>
<span class="gi">+static struct platform_device bcm63xx_ehci_device = {</span>
<span class="gi">+	.name		= &quot;bcm63xx_ehci&quot;,</span>
<span class="gi">+	.id		= 0,</span>
<span class="gi">+	.num_resources	= ARRAY_SIZE(ehci_resources),</span>
<span class="gi">+	.resource	= ehci_resources,</span>
<span class="gi">+	.dev		= {</span>
<span class="gi">+		.dma_mask		= &amp;ehci_dmamask,</span>
<span class="gi">+		.coherent_dma_mask	= 0xffffffff,</span>
<span class="gi">+	},</span>
<span class="gi">+};</span>
<span class="gi">+</span>
<span class="gi">+int __init bcm63xx_ehci_register(void)</span>
<span class="gi">+{</span>
<span class="gi">+	if (!BCMCPU_IS_6358())</span>
<span class="gi">+		return 0;</span>
<span class="gi">+</span>
<span class="gi">+	ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);</span>
<span class="gi">+	ehci_resources[0].end = ehci_resources[0].start;</span>
<span class="gi">+	ehci_resources[0].end += RSET_EHCI_SIZE - 1;</span>
<span class="gi">+	ehci_resources[1].start = bcm63xx_get_irq_number(IRQ_EHCI0);</span>
<span class="gi">+	return platform_device_register(&amp;bcm63xx_ehci_device);</span>
<span class="gi">+}</span>
<span class="gh">diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h</span>
new file mode 100644
<span class="gh">index 0000000..17fb519</span>
<span class="gd">--- /dev/null</span>
<span class="gi">+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h</span>
<span class="gu">@@ -0,0 +1,6 @@</span>
<span class="gi">+#ifndef BCM63XX_DEV_USB_EHCI_H_</span>
<span class="gi">+#define BCM63XX_DEV_USB_EHCI_H_</span>
<span class="gi">+</span>
<span class="gi">+int bcm63xx_ehci_register(void);</span>
<span class="gi">+</span>
<span class="gi">+#endif /* BCM63XX_DEV_USB_EHCI_H_ */</span>
<span class="gd">-- </span>
1.6.3.3
</pre></div>
</code></pre></td></tr></table>
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