From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaya Kumar Subject: [RFC 2.6.26-rc9 2/5] gumstix: conversion to MFP support and add bluetooth support Date: Sun, 20 Jul 2008 02:10:30 -0400 Message-ID: <1216534233-26674-3-git-send-email-jayakumar.lkml@gmail.com> References: <1216534233-26674-1-git-send-email-jayakumar.lkml@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1KKT0e-0001lY-Jz for linux-fbdev-devel@lists.sourceforge.net; Sun, 20 Jul 2008 00:07:08 -0700 Received: from wf-out-1314.google.com ([209.85.200.168]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1KKT0e-0008Gs-9H for linux-fbdev-devel@lists.sourceforge.net; Sun, 20 Jul 2008 00:07:08 -0700 Received: by wf-out-1314.google.com with SMTP id 27so979630wfd.4 for ; Sun, 20 Jul 2008 00:07:08 -0700 (PDT) In-Reply-To: <1216534233-26674-1-git-send-email-jayakumar.lkml@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: ymiao3@marvell.com Cc: Jaya Kumar , linux-fbdev-devel@lists.sourceforge.net, linux-arm-kernel@lists.arm.linux.org.uk This patch converts gumstix over to the MFP configuration system and adds bluetooth support. Signed-off-by: Jaya Kumar --- arch/arm/mach-pxa/gumstix.c | 94 +++++++++++++++++++++++++++++++++++-------- 1 files changed, 77 insertions(+), 17 deletions(-) diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index bdf2397..06493ff 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -20,8 +20,12 @@ #include #include #include +#include #include #include +#include +#include +#include #include #include @@ -40,7 +44,7 @@ #include #include -#include +#include #include "generic.h" @@ -85,21 +89,8 @@ static struct platform_device *devices[] __initdata = { }; #ifdef CONFIG_MMC_PXA -static struct pxamci_platform_data gumstix_mci_platform_data; - -static int gumstix_mci_init(struct device *dev, irq_handler_t detect_int, - void *data) -{ - pxa_gpio_mode(GPIO6_MMCCLK_MD); - pxa_gpio_mode(GPIO53_MMCCLK_MD); - pxa_gpio_mode(GPIO8_MMCCS0_MD); - - return 0; -} - static struct pxamci_platform_data gumstix_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .init = gumstix_mci_init, }; static void __init gumstix_mmc_init(void) @@ -109,11 +100,11 @@ static void __init gumstix_mmc_init(void) #else static void __init gumstix_mmc_init(void) { - printk(KERN_INFO "Gumstix mmc disabled\n"); + pr_debug("Gumstix mmc disabled\n"); } #endif -#ifdef CONFIG_USB_GADGET_PXA2XX +#ifdef CONFIG_USB_GADGET_PXA25X static struct pxa2xx_udc_mach_info gumstix_udc_info __initdata = { .gpio_vbus = GPIO_GUMSTIX_USB_GPIOn, .gpio_pullup = GPIO_GUMSTIX_USB_GPIOx, @@ -126,12 +117,81 @@ static void __init gumstix_udc_init(void) #else static void gumstix_udc_init(void) { - printk(KERN_INFO "Gumstix udc is disabled\n"); + pr_debug("Gumstix udc is disabled\n"); } #endif +#ifdef CONFIG_BT +/* Normally, the bootloader would have enabled this 32kHz clock but many +** boards still have u-boot 1.1.4 so we check if it has been turned on and +** if not, we turn it on with a warning message. */ +static void gumstix_setup_bt_clock(void) +{ + int timeout = 500; + + if (!(OSCC & OSCC_OOK)) + pr_warning("32kHz clock was not on. Bootloader may need to " + "be updated\n"); + else + return; + + OSCC |= OSCC_OON; + do { + if (OSCC & OSCC_OOK) + break; + udelay(1); + } while (--timeout); + if (!timeout) + pr_err("Failed to start 32kHz clock\n"); +} + +static void __init gumstix_bluetooth_init(void) +{ + int err; + + gumstix_setup_bt_clock(); + + err = gpio_direction_output(GPIO_GUMSTIX_BTRESET, 1); + if (err) { + pr_err("gumstix: can't reset bluetooth\n"); + return; + } + gpio_set_value(GPIO_GUMSTIX_BTRESET, 0); + udelay(100); + gpio_set_value(GPIO_GUMSTIX_BTRESET, 1); +} +#else +static void gumstix_bluetooth_init(void) +{ + pr_debug("Gumstix Bluetooth is disabled\n"); +} +#endif + +static unsigned long gumstix_pin_config[] __initdata = { + GPIO12_32KHz, + /* BTUART */ + GPIO42_HWUART_RXD, + GPIO43_HWUART_TXD, + GPIO44_HWUART_CTS, + GPIO45_HWUART_RTS, + /* MMC */ + GPIO6_MMC_CLK, + GPIO53_MMC_CLK, + GPIO8_MMC_CS0, + /* these are used by AM200EPD */ + GPIO51_GPIO, + GPIO49_GPIO, + GPIO48_GPIO, + GPIO32_GPIO, + GPIO17_GPIO, + GPIO16_GPIO, +}; + static void __init gumstix_init(void) { + pxa2xx_mfp_config(ARRAY_AND_SIZE(gumstix_pin_config)); + + gumstix_bluetooth_init(); gumstix_udc_init(); gumstix_mmc_init(); (void) platform_add_devices(devices, ARRAY_SIZE(devices)); -- 1.5.3.6 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/