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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-pxa/cm-x270.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-pxa/cm-x270.c')
-rw-r--r--kernel/arch/arm/mach-pxa/cm-x270.c412
1 files changed, 412 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-pxa/cm-x270.c b/kernel/arch/arm/mach-pxa/cm-x270.c
new file mode 100644
index 000000000..2503db9e3
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/cm-x270.c
@@ -0,0 +1,412 @@
+/*
+ * linux/arch/arm/mach-pxa/cm-x270.c
+ *
+ * Copyright (C) 2007, 2008 CompuLab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+
+#include <linux/rtc-v3020.h>
+#include <video/mbxfb.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/spi/libertas_spi.h>
+
+#include <mach/pxa27x.h>
+#include <linux/platform_data/usb-ohci-pxa27x.h>
+#include <linux/platform_data/mmc-pxamci.h>
+
+#include "generic.h"
+
+/* physical address if local-bus attached devices */
+#define RTC_PHYS_BASE (PXA_CS1_PHYS + (5 << 22))
+
+/* GPIO IRQ usage */
+#define GPIO83_MMC_IRQ (83)
+
+#define CMX270_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO83_MMC_IRQ)
+
+/* MMC power enable */
+#define GPIO105_MMC_POWER (105)
+
+/* WLAN GPIOS */
+#define GPIO19_WLAN_STRAP (19)
+#define GPIO102_WLAN_RST (102)
+
+static unsigned long cmx270_pin_config[] = {
+ /* AC'97 */
+ GPIO28_AC97_BITCLK,
+ GPIO29_AC97_SDATA_IN_0,
+ GPIO30_AC97_SDATA_OUT,
+ GPIO31_AC97_SYNC,
+ GPIO98_AC97_SYSCLK,
+ GPIO113_AC97_nRESET,
+
+ /* BTUART */
+ GPIO42_BTUART_RXD,
+ GPIO43_BTUART_TXD,
+ GPIO44_BTUART_CTS,
+ GPIO45_BTUART_RTS,
+
+ /* STUART */
+ GPIO46_STUART_RXD,
+ GPIO47_STUART_TXD,
+
+ /* MCI controller */
+ GPIO32_MMC_CLK,
+ GPIO112_MMC_CMD,
+ GPIO92_MMC_DAT_0,
+ GPIO109_MMC_DAT_1,
+ GPIO110_MMC_DAT_2,
+ GPIO111_MMC_DAT_3,
+
+ /* LCD */
+ GPIOxx_LCD_TFT_16BPP,
+
+ /* I2C */
+ GPIO117_I2C_SCL,
+ GPIO118_I2C_SDA,
+
+ /* SSP1 */
+ GPIO23_SSP1_SCLK,
+ GPIO24_SSP1_SFRM,
+ GPIO25_SSP1_TXD,
+ GPIO26_SSP1_RXD,
+
+ /* SSP2 */
+ GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
+ GPIO14_GPIO,
+ GPIO87_SSP2_TXD,
+ GPIO88_SSP2_RXD,
+
+ /* PC Card */
+ GPIO48_nPOE,
+ GPIO49_nPWE,
+ GPIO50_nPIOR,
+ GPIO51_nPIOW,
+ GPIO85_nPCE_1,
+ GPIO54_nPCE_2,
+ GPIO55_nPREG,
+ GPIO56_nPWAIT,
+ GPIO57_nIOIS16,
+
+ /* SDRAM and local bus */
+ GPIO15_nCS_1,
+ GPIO78_nCS_2,
+ GPIO79_nCS_3,
+ GPIO80_nCS_4,
+ GPIO33_nCS_5,
+ GPIO49_nPWE,
+ GPIO18_RDY,
+
+ /* GPIO */
+ GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
+ GPIO105_GPIO | MFP_LPM_DRIVE_HIGH, /* MMC/SD power */
+ GPIO53_GPIO, /* PC card reset */
+ GPIO102_GPIO, /* WLAN reset */
+
+ /* NAND controls */
+ GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
+ GPIO89_GPIO, /* NAND Ready/Busy */
+
+ /* interrupts */
+ GPIO10_GPIO, /* DM9000 interrupt */
+ GPIO83_GPIO, /* MMC card detect */
+ GPIO95_GPIO, /* WLAN interrupt */
+};
+
+/* V3020 RTC */
+#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
+static struct resource cmx270_v3020_resource[] = {
+ [0] = {
+ .start = RTC_PHYS_BASE,
+ .end = RTC_PHYS_BASE + 4,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+struct v3020_platform_data cmx270_v3020_pdata = {
+ .leftshift = 16,
+};
+
+static struct platform_device cmx270_rtc_device = {
+ .name = "v3020",
+ .num_resources = ARRAY_SIZE(cmx270_v3020_resource),
+ .resource = cmx270_v3020_resource,
+ .id = -1,
+ .dev = {
+ .platform_data = &cmx270_v3020_pdata,
+ }
+};
+
+static void __init cmx270_init_rtc(void)
+{
+ platform_device_register(&cmx270_rtc_device);
+}
+#else
+static inline void cmx270_init_rtc(void) {}
+#endif
+
+/* 2700G graphics */
+#if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
+static u64 fb_dma_mask = ~(u64)0;
+
+static struct resource cmx270_2700G_resource[] = {
+ /* frame buffer memory including ODFB and External SDRAM */
+ [0] = {
+ .start = PXA_CS2_PHYS,
+ .end = PXA_CS2_PHYS + 0x01ffffff,
+ .flags = IORESOURCE_MEM,
+ },
+ /* Marathon registers */
+ [1] = {
+ .start = PXA_CS2_PHYS + 0x03fe0000,
+ .end = PXA_CS2_PHYS + 0x03ffffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static unsigned long cmx270_marathon_on[] = {
+ GPIO58_GPIO,
+ GPIO59_GPIO,
+ GPIO60_GPIO,
+ GPIO61_GPIO,
+ GPIO62_GPIO,
+ GPIO63_GPIO,
+ GPIO64_GPIO,
+ GPIO65_GPIO,
+ GPIO66_GPIO,
+ GPIO67_GPIO,
+ GPIO68_GPIO,
+ GPIO69_GPIO,
+ GPIO70_GPIO,
+ GPIO71_GPIO,
+ GPIO72_GPIO,
+ GPIO73_GPIO,
+ GPIO74_GPIO,
+ GPIO75_GPIO,
+ GPIO76_GPIO,
+ GPIO77_GPIO,
+};
+
+static unsigned long cmx270_marathon_off[] = {
+ GPIOxx_LCD_TFT_16BPP,
+};
+
+static int cmx270_marathon_probe(struct fb_info *fb)
+{
+ int gpio, err;
+
+ for (gpio = 58; gpio <= 77; gpio++) {
+ err = gpio_request(gpio, "LCD");
+ if (err)
+ return err;
+ gpio_direction_input(gpio);
+ }
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_on));
+ return 0;
+}
+
+static int cmx270_marathon_remove(struct fb_info *fb)
+{
+ int gpio;
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_marathon_off));
+
+ for (gpio = 58; gpio <= 77; gpio++)
+ gpio_free(gpio);
+
+ return 0;
+}
+
+static struct mbxfb_platform_data cmx270_2700G_data = {
+ .xres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 640,
+ },
+ .yres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 480,
+ },
+ .bpp = {
+ .min = 16,
+ .max = 32,
+ .defval = 16,
+ },
+ .memsize = 8*1024*1024,
+ .probe = cmx270_marathon_probe,
+ .remove = cmx270_marathon_remove,
+};
+
+static struct platform_device cmx270_2700G = {
+ .name = "mbx-fb",
+ .dev = {
+ .platform_data = &cmx270_2700G_data,
+ .dma_mask = &fb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(cmx270_2700G_resource),
+ .resource = cmx270_2700G_resource,
+ .id = -1,
+};
+
+static void __init cmx270_init_2700G(void)
+{
+ platform_device_register(&cmx270_2700G);
+}
+#else
+static inline void cmx270_init_2700G(void) {}
+#endif
+
+/* PXA27x OHCI controller setup */
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+static struct pxaohci_platform_data cmx270_ohci_platform_data = {
+ .port_mode = PMM_PERPORT_MODE,
+ .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
+};
+
+static void __init cmx270_init_ohci(void)
+{
+ pxa_set_ohci_info(&cmx270_ohci_platform_data);
+}
+#else
+static inline void cmx270_init_ohci(void) {}
+#endif
+
+#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
+static struct pxamci_platform_data cmx270_mci_platform_data = {
+ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
+ .gpio_card_detect = GPIO83_MMC_IRQ,
+ .gpio_card_ro = -1,
+ .gpio_power = GPIO105_MMC_POWER,
+ .gpio_power_invert = 1,
+};
+
+static void __init cmx270_init_mmc(void)
+{
+ pxa_set_mci_info(&cmx270_mci_platform_data);
+}
+#else
+static inline void cmx270_init_mmc(void) {}
+#endif
+
+#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
+static struct pxa2xx_spi_master cm_x270_spi_info = {
+ .num_chipselect = 1,
+ .enable_dma = 1,
+};
+
+static struct pxa2xx_spi_chip cm_x270_libertas_chip = {
+ .rx_threshold = 1,
+ .tx_threshold = 1,
+ .timeout = 1000,
+ .gpio_cs = 14,
+};
+
+static unsigned long cm_x270_libertas_pin_config[] = {
+ /* SSP2 */
+ GPIO19_SSP2_SCLK,
+ GPIO14_GPIO,
+ GPIO87_SSP2_TXD,
+ GPIO88_SSP2_RXD,
+
+};
+
+static int cm_x270_libertas_setup(struct spi_device *spi)
+{
+ int err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
+ if (err)
+ return err;
+
+ err = gpio_request(GPIO102_WLAN_RST, "WLAN RST");
+ if (err)
+ goto err_free_strap;
+
+ err = gpio_direction_output(GPIO102_WLAN_RST, 0);
+ if (err)
+ goto err_free_strap;
+ msleep(100);
+
+ err = gpio_direction_output(GPIO19_WLAN_STRAP, 1);
+ if (err)
+ goto err_free_strap;
+ msleep(100);
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cm_x270_libertas_pin_config));
+
+ gpio_set_value(GPIO102_WLAN_RST, 1);
+ msleep(100);
+
+ spi->bits_per_word = 16;
+ spi_setup(spi);
+
+ return 0;
+
+err_free_strap:
+ gpio_free(GPIO19_WLAN_STRAP);
+
+ return err;
+}
+
+static int cm_x270_libertas_teardown(struct spi_device *spi)
+{
+ gpio_set_value(GPIO102_WLAN_RST, 0);
+ gpio_free(GPIO102_WLAN_RST);
+ gpio_free(GPIO19_WLAN_STRAP);
+
+ return 0;
+}
+
+struct libertas_spi_platform_data cm_x270_libertas_pdata = {
+ .use_dummy_writes = 1,
+ .setup = cm_x270_libertas_setup,
+ .teardown = cm_x270_libertas_teardown,
+};
+
+static struct spi_board_info cm_x270_spi_devices[] __initdata = {
+ {
+ .modalias = "libertas_spi",
+ .max_speed_hz = 13000000,
+ .bus_num = 2,
+ .irq = PXA_GPIO_TO_IRQ(95),
+ .chip_select = 0,
+ .controller_data = &cm_x270_libertas_chip,
+ .platform_data = &cm_x270_libertas_pdata,
+ },
+};
+
+static void __init cmx270_init_spi(void)
+{
+ pxa2xx_set_spi_info(2, &cm_x270_spi_info);
+ spi_register_board_info(ARRAY_AND_SIZE(cm_x270_spi_devices));
+}
+#else
+static inline void cmx270_init_spi(void) {}
+#endif
+
+void __init cmx270_init(void)
+{
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
+
+#ifdef CONFIG_PM
+ pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
+#endif
+
+ cmx270_init_rtc();
+ cmx270_init_mmc();
+ cmx270_init_ohci();
+ cmx270_init_2700G();
+ cmx270_init_spi();
+}