Merge remote-tracking branch 'airlied/drm-fixes' into drm-intel-next-queued

Back-merge from drm-fixes into drm-intel-next to sort out two things:

- interlaced support: -fixes contains a bugfix to correctly clear
  interlaced configuration bits in case the bios sets up an interlaced
  mode and we want to set up the progressive mode (current kernels
  don't support interlaced). The actual feature work to support
  interlaced depends upon (and conflicts with) this bugfix.

- forcewake voodoo to workaround missed IRQ issues: -fixes only enabled
  this for ivybridge, but some recent bug reports indicate that we
  need this on Sandybridge, too. But in a slightly different flavour
  and with other fixes and reworks on top. Additionally there are some
  forcewake cleanup patches heading to -next that would conflict with
  currrent -fixes.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 430 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/mach-mx51_babbage.c b/arch/arm/mach-imx/mach-mx51_babbage.c
new file mode 100644
index 000000000000..e4b822e9f719
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx51_babbage.c
@@ -0,0 +1,430 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@canonical.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/input.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/iomux-mx51.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "devices-imx51.h"
+#include "cpu_op-mx51.h"
+
+#define BABBAGE_USB_HUB_RESET	IMX_GPIO_NR(1, 7)
+#define BABBAGE_USBH1_STP	IMX_GPIO_NR(1, 27)
+#define BABBAGE_USB_PHY_RESET	IMX_GPIO_NR(2, 5)
+#define BABBAGE_FEC_PHY_RESET	IMX_GPIO_NR(2, 14)
+#define BABBAGE_POWER_KEY	IMX_GPIO_NR(2, 21)
+#define BABBAGE_ECSPI1_CS0	IMX_GPIO_NR(4, 24)
+#define BABBAGE_ECSPI1_CS1	IMX_GPIO_NR(4, 25)
+#define BABBAGE_SD2_CD		IMX_GPIO_NR(1, 6)
+#define BABBAGE_SD2_WP		IMX_GPIO_NR(1, 5)
+
+/* USB_CTRL_1 */
+#define MX51_USB_CTRL_1_OFFSET			0x10
+#define MX51_USB_CTRL_UH1_EXT_CLK_EN		(1 << 25)
+
+#define	MX51_USB_PLLDIV_12_MHZ		0x00
+#define	MX51_USB_PLL_DIV_19_2_MHZ	0x01
+#define	MX51_USB_PLL_DIV_24_MHZ	0x02
+
+static struct gpio_keys_button babbage_buttons[] = {
+	{
+		.gpio		= BABBAGE_POWER_KEY,
+		.code		= BTN_0,
+		.desc		= "PWR",
+		.active_low	= 1,
+		.wakeup		= 1,
+	},
+};
+
+static const struct gpio_keys_platform_data imx_button_data __initconst = {
+	.buttons	= babbage_buttons,
+	.nbuttons	= ARRAY_SIZE(babbage_buttons),
+};
+
+static iomux_v3_cfg_t mx51babbage_pads[] = {
+	/* UART1 */
+	MX51_PAD_UART1_RXD__UART1_RXD,
+	MX51_PAD_UART1_TXD__UART1_TXD,
+	MX51_PAD_UART1_RTS__UART1_RTS,
+	MX51_PAD_UART1_CTS__UART1_CTS,
+
+	/* UART2 */
+	MX51_PAD_UART2_RXD__UART2_RXD,
+	MX51_PAD_UART2_TXD__UART2_TXD,
+
+	/* UART3 */
+	MX51_PAD_EIM_D25__UART3_RXD,
+	MX51_PAD_EIM_D26__UART3_TXD,
+	MX51_PAD_EIM_D27__UART3_RTS,
+	MX51_PAD_EIM_D24__UART3_CTS,
+
+	/* I2C1 */
+	MX51_PAD_EIM_D16__I2C1_SDA,
+	MX51_PAD_EIM_D19__I2C1_SCL,
+
+	/* I2C2 */
+	MX51_PAD_KEY_COL4__I2C2_SCL,
+	MX51_PAD_KEY_COL5__I2C2_SDA,
+
+	/* HSI2C */
+	MX51_PAD_I2C1_CLK__I2C1_CLK,
+	MX51_PAD_I2C1_DAT__I2C1_DAT,
+
+	/* USB HOST1 */
+	MX51_PAD_USBH1_CLK__USBH1_CLK,
+	MX51_PAD_USBH1_DIR__USBH1_DIR,
+	MX51_PAD_USBH1_NXT__USBH1_NXT,
+	MX51_PAD_USBH1_DATA0__USBH1_DATA0,
+	MX51_PAD_USBH1_DATA1__USBH1_DATA1,
+	MX51_PAD_USBH1_DATA2__USBH1_DATA2,
+	MX51_PAD_USBH1_DATA3__USBH1_DATA3,
+	MX51_PAD_USBH1_DATA4__USBH1_DATA4,
+	MX51_PAD_USBH1_DATA5__USBH1_DATA5,
+	MX51_PAD_USBH1_DATA6__USBH1_DATA6,
+	MX51_PAD_USBH1_DATA7__USBH1_DATA7,
+
+	/* USB HUB reset line*/
+	MX51_PAD_GPIO1_7__GPIO1_7,
+
+	/* USB PHY reset line */
+	MX51_PAD_EIM_D21__GPIO2_5,
+
+	/* FEC */
+	MX51_PAD_EIM_EB2__FEC_MDIO,
+	MX51_PAD_EIM_EB3__FEC_RDATA1,
+	MX51_PAD_EIM_CS2__FEC_RDATA2,
+	MX51_PAD_EIM_CS3__FEC_RDATA3,
+	MX51_PAD_EIM_CS4__FEC_RX_ER,
+	MX51_PAD_EIM_CS5__FEC_CRS,
+	MX51_PAD_NANDF_RB2__FEC_COL,
+	MX51_PAD_NANDF_RB3__FEC_RX_CLK,
+	MX51_PAD_NANDF_D9__FEC_RDATA0,
+	MX51_PAD_NANDF_D8__FEC_TDATA0,
+	MX51_PAD_NANDF_CS2__FEC_TX_ER,
+	MX51_PAD_NANDF_CS3__FEC_MDC,
+	MX51_PAD_NANDF_CS4__FEC_TDATA1,
+	MX51_PAD_NANDF_CS5__FEC_TDATA2,
+	MX51_PAD_NANDF_CS6__FEC_TDATA3,
+	MX51_PAD_NANDF_CS7__FEC_TX_EN,
+	MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK,
+
+	/* FEC PHY reset line */
+	MX51_PAD_EIM_A20__GPIO2_14,
+
+	/* SD 1 */
+	MX51_PAD_SD1_CMD__SD1_CMD,
+	MX51_PAD_SD1_CLK__SD1_CLK,
+	MX51_PAD_SD1_DATA0__SD1_DATA0,
+	MX51_PAD_SD1_DATA1__SD1_DATA1,
+	MX51_PAD_SD1_DATA2__SD1_DATA2,
+	MX51_PAD_SD1_DATA3__SD1_DATA3,
+	/* CD/WP from controller */
+	MX51_PAD_GPIO1_0__SD1_CD,
+	MX51_PAD_GPIO1_1__SD1_WP,
+
+	/* SD 2 */
+	MX51_PAD_SD2_CMD__SD2_CMD,
+	MX51_PAD_SD2_CLK__SD2_CLK,
+	MX51_PAD_SD2_DATA0__SD2_DATA0,
+	MX51_PAD_SD2_DATA1__SD2_DATA1,
+	MX51_PAD_SD2_DATA2__SD2_DATA2,
+	MX51_PAD_SD2_DATA3__SD2_DATA3,
+	/* CD/WP gpio */
+	MX51_PAD_GPIO1_6__GPIO1_6,
+	MX51_PAD_GPIO1_5__GPIO1_5,
+
+	/* eCSPI1 */
+	MX51_PAD_CSPI1_MISO__ECSPI1_MISO,
+	MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI,
+	MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK,
+	MX51_PAD_CSPI1_SS0__GPIO4_24,
+	MX51_PAD_CSPI1_SS1__GPIO4_25,
+};
+
+/* Serial ports */
+static const struct imxuart_platform_data uart_pdata __initconst = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+static const struct imxi2c_platform_data babbage_i2c_data __initconst = {
+	.bitrate = 100000,
+};
+
+static const struct imxi2c_platform_data babbage_hsi2c_data __initconst = {
+	.bitrate = 400000,
+};
+
+static struct gpio mx51_babbage_usbh1_gpios[] = {
+	{ BABBAGE_USBH1_STP, GPIOF_OUT_INIT_LOW, "usbh1_stp" },
+	{ BABBAGE_USB_PHY_RESET, GPIOF_OUT_INIT_LOW, "usbh1_phy_reset" },
+};
+
+static int gpio_usbh1_active(void)
+{
+	iomux_v3_cfg_t usbh1stp_gpio = MX51_PAD_USBH1_STP__GPIO1_27;
+	int ret;
+
+	/* Set USBH1_STP to GPIO and toggle it */
+	mxc_iomux_v3_setup_pad(usbh1stp_gpio);
+	ret = gpio_request_array(mx51_babbage_usbh1_gpios,
+					ARRAY_SIZE(mx51_babbage_usbh1_gpios));
+
+	if (ret) {
+		pr_debug("failed to get USBH1 pins: %d\n", ret);
+		return ret;
+	}
+
+	msleep(100);
+	gpio_set_value(BABBAGE_USBH1_STP, 1);
+	gpio_set_value(BABBAGE_USB_PHY_RESET, 1);
+	gpio_free_array(mx51_babbage_usbh1_gpios,
+					ARRAY_SIZE(mx51_babbage_usbh1_gpios));
+	return 0;
+}
+
+static inline void babbage_usbhub_reset(void)
+{
+	int ret;
+
+	/* Reset USB hub */
+	ret = gpio_request_one(BABBAGE_USB_HUB_RESET,
+					GPIOF_OUT_INIT_LOW, "GPIO1_7");
+	if (ret) {
+		printk(KERN_ERR"failed to get GPIO_USB_HUB_RESET: %d\n", ret);
+		return;
+	}
+
+	msleep(2);
+	/* Deassert reset */
+	gpio_set_value(BABBAGE_USB_HUB_RESET, 1);
+}
+
+static inline void babbage_fec_reset(void)
+{
+	int ret;
+
+	/* reset FEC PHY */
+	ret = gpio_request_one(BABBAGE_FEC_PHY_RESET,
+					GPIOF_OUT_INIT_LOW, "fec-phy-reset");
+	if (ret) {
+		printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
+		return;
+	}
+	msleep(1);
+	gpio_set_value(BABBAGE_FEC_PHY_RESET, 1);
+}
+
+/* This function is board specific as the bit mask for the plldiv will also
+be different for other Freescale SoCs, thus a common bitmask is not
+possible and cannot get place in /plat-mxc/ehci.c.*/
+static int initialize_otg_port(struct platform_device *pdev)
+{
+	u32 v;
+	void __iomem *usb_base;
+	void __iomem *usbother_base;
+
+	usb_base = ioremap(MX51_USB_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
+	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
+
+	/* Set the PHY clock to 19.2MHz */
+	v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
+	v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK;
+	v |= MX51_USB_PLL_DIV_19_2_MHZ;
+	__raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET);
+	iounmap(usb_base);
+
+	mdelay(10);
+
+	return mx51_initialize_usb_hw(0, MXC_EHCI_INTERNAL_PHY);
+}
+
+static int initialize_usbh1_port(struct platform_device *pdev)
+{
+	u32 v;
+	void __iomem *usb_base;
+	void __iomem *usbother_base;
+
+	usb_base = ioremap(MX51_USB_OTG_BASE_ADDR, SZ_4K);
+	if (!usb_base)
+		return -ENOMEM;
+	usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
+
+	/* The clock for the USBH1 ULPI port will come externally from the PHY. */
+	v = __raw_readl(usbother_base + MX51_USB_CTRL_1_OFFSET);
+	__raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN, usbother_base + MX51_USB_CTRL_1_OFFSET);
+	iounmap(usb_base);
+
+	mdelay(10);
+
+	return mx51_initialize_usb_hw(1, MXC_EHCI_POWER_PINS_ENABLED |
+			MXC_EHCI_ITC_NO_THRESHOLD);
+}
+
+static const struct mxc_usbh_platform_data dr_utmi_config __initconst = {
+	.init		= initialize_otg_port,
+	.portsc	= MXC_EHCI_UTMI_16BIT,
+};
+
+static const struct fsl_usb2_platform_data usb_pdata __initconst = {
+	.operating_mode	= FSL_USB2_DR_DEVICE,
+	.phy_mode	= FSL_USB2_PHY_UTMI_WIDE,
+};
+
+static const struct mxc_usbh_platform_data usbh1_config __initconst = {
+	.init		= initialize_usbh1_port,
+	.portsc	= MXC_EHCI_MODE_ULPI,
+};
+
+static int otg_mode_host;
+
+static int __init babbage_otg_mode(char *options)
+{
+	if (!strcmp(options, "host"))
+		otg_mode_host = 1;
+	else if (!strcmp(options, "device"))
+		otg_mode_host = 0;
+	else
+		pr_info("otg_mode neither \"host\" nor \"device\". "
+			"Defaulting to device\n");
+	return 0;
+}
+__setup("otg_mode=", babbage_otg_mode);
+
+static struct spi_board_info mx51_babbage_spi_board_info[] __initdata = {
+	{
+		.modalias = "mtd_dataflash",
+		.max_speed_hz = 25000000,
+		.bus_num = 0,
+		.chip_select = 1,
+		.mode = SPI_MODE_0,
+		.platform_data = NULL,
+	},
+};
+
+static int mx51_babbage_spi_cs[] = {
+	BABBAGE_ECSPI1_CS0,
+	BABBAGE_ECSPI1_CS1,
+};
+
+static const struct spi_imx_master mx51_babbage_spi_pdata __initconst = {
+	.chipselect     = mx51_babbage_spi_cs,
+	.num_chipselect = ARRAY_SIZE(mx51_babbage_spi_cs),
+};
+
+static const struct esdhc_platform_data mx51_babbage_sd1_data __initconst = {
+	.cd_type = ESDHC_CD_CONTROLLER,
+	.wp_type = ESDHC_WP_CONTROLLER,
+};
+
+static const struct esdhc_platform_data mx51_babbage_sd2_data __initconst = {
+	.cd_gpio = BABBAGE_SD2_CD,
+	.wp_gpio = BABBAGE_SD2_WP,
+	.cd_type = ESDHC_CD_GPIO,
+	.wp_type = ESDHC_WP_GPIO,
+};
+
+void __init imx51_babbage_common_init(void)
+{
+	mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads,
+					 ARRAY_SIZE(mx51babbage_pads));
+}
+
+/*
+ * Board specific initialization.
+ */
+static void __init mx51_babbage_init(void)
+{
+	iomux_v3_cfg_t usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP;
+	iomux_v3_cfg_t power_key = NEW_PAD_CTRL(MX51_PAD_EIM_A27__GPIO2_21,
+		PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH);
+
+	imx51_soc_init();
+
+#if defined(CONFIG_CPU_FREQ_IMX)
+	get_cpu_op = mx51_get_cpu_op;
+#endif
+	imx51_babbage_common_init();
+
+	imx51_add_imx_uart(0, &uart_pdata);
+	imx51_add_imx_uart(1, NULL);
+	imx51_add_imx_uart(2, &uart_pdata);
+
+	babbage_fec_reset();
+	imx51_add_fec(NULL);
+
+	/* Set the PAD settings for the pwr key. */
+	mxc_iomux_v3_setup_pad(power_key);
+	imx_add_gpio_keys(&imx_button_data);
+
+	imx51_add_imx_i2c(0, &babbage_i2c_data);
+	imx51_add_imx_i2c(1, &babbage_i2c_data);
+	imx51_add_hsi2c(&babbage_hsi2c_data);
+
+	if (otg_mode_host)
+		imx51_add_mxc_ehci_otg(&dr_utmi_config);
+	else {
+		initialize_otg_port(NULL);
+		imx51_add_fsl_usb2_udc(&usb_pdata);
+	}
+
+	gpio_usbh1_active();
+	imx51_add_mxc_ehci_hs(1, &usbh1_config);
+	/* setback USBH1_STP to be function */
+	mxc_iomux_v3_setup_pad(usbh1stp);
+	babbage_usbhub_reset();
+
+	imx51_add_sdhci_esdhc_imx(0, &mx51_babbage_sd1_data);
+	imx51_add_sdhci_esdhc_imx(1, &mx51_babbage_sd2_data);
+
+	spi_register_board_info(mx51_babbage_spi_board_info,
+		ARRAY_SIZE(mx51_babbage_spi_board_info));
+	imx51_add_ecspi(0, &mx51_babbage_spi_pdata);
+	imx51_add_imx2_wdt(0, NULL);
+}
+
+static void __init mx51_babbage_timer_init(void)
+{
+	mx51_clocks_init(32768, 24000000, 22579200, 0);
+}
+
+static struct sys_timer mx51_babbage_timer = {
+	.init = mx51_babbage_timer_init,
+};
+
+MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board")
+	/* Maintainer: Amit Kucheria <amit.kucheria@canonical.com> */
+	.atag_offset = 0x100,
+	.map_io = mx51_map_io,
+	.init_early = imx51_init_early,
+	.init_irq = mx51_init_irq,
+	.handle_irq = imx51_handle_irq,
+	.timer = &mx51_babbage_timer,
+	.init_machine = mx51_babbage_init,
+	.restart	= mxc_restart,
+MACHINE_END