From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Quadros Subject: [PATCH 4/4] ARM: OMAP2+: dts: HACK: Provide alias to USB PHY clock Date: Tue, 18 Jun 2013 14:11:31 +0300 Message-ID: <1371553891-29364-5-git-send-email-rogerq@ti.com> References: <1371553891-29364-1-git-send-email-rogerq@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1371553891-29364-1-git-send-email-rogerq@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: tony@atomide.com, b-cousson@ti.com Cc: linux-omap@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Roger Quadros List-Id: linux-omap@vger.kernel.org Till the OMAP clocks are correctly defined in device tree, use this temporary hack to provide clock alias to the USB PHY clocks. Without this, USB Host & Ethernet will not be functional with device tree boots on Panda and uEVM. Signed-off-by: Roger Quadros --- arch/arm/mach-omap2/board-generic.c | 23 ++++++++++++++++++++++- 1 files changed, 22 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 88aa6b1..2b2d0de 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -15,6 +15,7 @@ #include #include #include +#include #include @@ -35,6 +36,21 @@ static struct of_device_id omap_dt_match_table[] __initdata = { { } }; +/* + * HACK: create alias for USB host PHY clock. + * Remove this when clock phandle can be provided via DT + */ +static void __init legacy_init_ehci_clk(char *clkname) +{ + int ret; + + ret = clk_add_alias("main_clk", NULL, clkname, NULL); + if (ret) { + pr_err("%s:Failed to add main_clk alias to %s :%d\n", + __func__, clkname, ret); + } +} + static void __init omap_generic_init(void) { omap_sdrc_init(NULL, NULL); @@ -45,10 +61,15 @@ static void __init omap_generic_init(void) * HACK: call display setup code for selected boards to enable omapdss. * This will be removed when omapdss supports DT. */ - if (of_machine_is_compatible("ti,omap4-panda")) + if (of_machine_is_compatible("ti,omap4-panda")) { omap4_panda_display_init_of(); + legacy_init_ehci_clk("auxclk3_ck"); + + } else if (of_machine_is_compatible("ti,omap4-sdp")) omap_4430sdp_display_init_of(); + else if (of_machine_is_compatible("ti,omap5-uevm")) + legacy_init_ehci_clk("auxclk1_ck"); } #ifdef CONFIG_SOC_OMAP2420 -- 1.7.4.1