From: Tony Lindgren <tony@atomide.com>
Date: Fri, 6 Dec 2013 18:53:04 +0000 (-0800)
Subject: ARM: OMAP2+: Use pdata quirks for emac on am3517
X-Git-Url: http://pileus.org/git/?a=commitdiff_plain;h=719003144642687d6dea27f7541ef026b9f356ac;p=~andy%2Flinux

ARM: OMAP2+: Use pdata quirks for emac on am3517

As the emac uses the system control module registers for
reset and interrupts, we need to pass those in the platform
data until we have a separate system control module driver.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 47afff3b9c3..5aaf720211f 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -8,6 +8,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
+#include <linux/davinci_emac.h>
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -16,6 +17,7 @@
 
 #include <linux/platform_data/pinctrl-single.h>
 
+#include "am35xx.h"
 #include "common.h"
 #include "common-board-devices.h"
 #include "dss-common.h"
@@ -104,6 +106,42 @@ static void __init omap3_zoom_legacy_init(void)
 {
 	legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
 }
+
+static void am35xx_enable_emac_int(void)
+{
+	u32 v;
+
+	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
+	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR |
+	      AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR);
+	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
+	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
+}
+
+static void am35xx_disable_emac_int(void)
+{
+	u32 v;
+
+	v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
+	v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR);
+	omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR);
+	omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */
+}
+
+static struct emac_platform_data am35xx_emac_pdata = {
+	.interrupt_enable	= am35xx_enable_emac_int,
+	.interrupt_disable	= am35xx_disable_emac_int,
+};
+
+static void __init am3517_evm_legacy_init(void)
+{
+	u32 v;
+
+	v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
+	v &= ~AM35XX_CPGMACSS_SW_RST;
+	omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET);
+	omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */
+}
 #endif /* CONFIG_ARCH_OMAP3 */
 
 #ifdef CONFIG_ARCH_OMAP4
@@ -172,6 +210,10 @@ struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 #ifdef CONFIG_ARCH_OMAP3
 	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
 	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
+	/* Only on am3517 */
+	OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL),
+	OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
+		       &am35xx_emac_pdata),
 #endif
 #ifdef CONFIG_ARCH_OMAP4
 	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
@@ -192,6 +234,7 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
 	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
 	{ "ti,omap3-zoom3", omap3_zoom_legacy_init, },
+	{ "ti,am3517-evm", am3517_evm_legacy_init, },
 #endif
 #ifdef CONFIG_ARCH_OMAP4
 	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },