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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-imx/mach-mx27ads.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-imx/mach-mx27ads.c')
-rw-r--r--kernel/arch/arm/mach-imx/mach-mx27ads.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-mx27ads.c b/kernel/arch/arm/mach-imx/mach-mx27ads.c
new file mode 100644
index 000000000..eb1c3477c
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-mx27ads.c
@@ -0,0 +1,397 @@
+/*
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ * Copyright (C) 2002 Shane Nay (shane@minirl.com)
+ * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+
+#include "common.h"
+#include "devices-imx27.h"
+#include "hardware.h"
+#include "iomux-mx27.h"
+
+/*
+ * Base address of PBC controller, CS4
+ */
+#define PBC_BASE_ADDRESS 0xf4300000
+#define PBC_REG_ADDR(offset) (void __force __iomem *) \
+ (PBC_BASE_ADDRESS + (offset))
+
+/* When the PBC address connection is fixed in h/w, defined as 1 */
+#define PBC_ADDR_SH 0
+
+/* Offsets for the PBC Controller register */
+/*
+ * PBC Board version register offset
+ */
+#define PBC_VERSION_REG PBC_REG_ADDR(0x00000 >> PBC_ADDR_SH)
+/*
+ * PBC Board control register 1 set address.
+ */
+#define PBC_BCTRL1_SET_REG PBC_REG_ADDR(0x00008 >> PBC_ADDR_SH)
+/*
+ * PBC Board control register 1 clear address.
+ */
+#define PBC_BCTRL1_CLEAR_REG PBC_REG_ADDR(0x0000C >> PBC_ADDR_SH)
+
+/* PBC Board Control Register 1 bit definitions */
+#define PBC_BCTRL1_LCDON 0x0800 /* Enable the LCD */
+
+/* to determine the correct external crystal reference */
+#define CKIH_27MHZ_BIT_SET (1 << 3)
+
+static const int mx27ads_pins[] __initconst = {
+ /* UART0 */
+ PE12_PF_UART1_TXD,
+ PE13_PF_UART1_RXD,
+ PE14_PF_UART1_CTS,
+ PE15_PF_UART1_RTS,
+ /* UART1 */
+ PE3_PF_UART2_CTS,
+ PE4_PF_UART2_RTS,
+ PE6_PF_UART2_TXD,
+ PE7_PF_UART2_RXD,
+ /* UART2 */
+ PE8_PF_UART3_TXD,
+ PE9_PF_UART3_RXD,
+ PE10_PF_UART3_CTS,
+ PE11_PF_UART3_RTS,
+ /* UART3 */
+ PB26_AF_UART4_RTS,
+ PB28_AF_UART4_TXD,
+ PB29_AF_UART4_CTS,
+ PB31_AF_UART4_RXD,
+ /* UART4 */
+ PB18_AF_UART5_TXD,
+ PB19_AF_UART5_RXD,
+ PB20_AF_UART5_CTS,
+ PB21_AF_UART5_RTS,
+ /* UART5 */
+ PB10_AF_UART6_TXD,
+ PB12_AF_UART6_CTS,
+ PB11_AF_UART6_RXD,
+ PB13_AF_UART6_RTS,
+ /* FEC */
+ PD0_AIN_FEC_TXD0,
+ PD1_AIN_FEC_TXD1,
+ PD2_AIN_FEC_TXD2,
+ PD3_AIN_FEC_TXD3,
+ PD4_AOUT_FEC_RX_ER,
+ PD5_AOUT_FEC_RXD1,
+ PD6_AOUT_FEC_RXD2,
+ PD7_AOUT_FEC_RXD3,
+ PD8_AF_FEC_MDIO,
+ PD9_AIN_FEC_MDC,
+ PD10_AOUT_FEC_CRS,
+ PD11_AOUT_FEC_TX_CLK,
+ PD12_AOUT_FEC_RXD0,
+ PD13_AOUT_FEC_RX_DV,
+ PD14_AOUT_FEC_RX_CLK,
+ PD15_AOUT_FEC_COL,
+ PD16_AIN_FEC_TX_ER,
+ PF23_AIN_FEC_TX_EN,
+ /* I2C2 */
+ PC5_PF_I2C2_SDA,
+ PC6_PF_I2C2_SCL,
+ /* FB */
+ PA5_PF_LSCLK,
+ PA6_PF_LD0,
+ PA7_PF_LD1,
+ PA8_PF_LD2,
+ PA9_PF_LD3,
+ PA10_PF_LD4,
+ PA11_PF_LD5,
+ PA12_PF_LD6,
+ PA13_PF_LD7,
+ PA14_PF_LD8,
+ PA15_PF_LD9,
+ PA16_PF_LD10,
+ PA17_PF_LD11,
+ PA18_PF_LD12,
+ PA19_PF_LD13,
+ PA20_PF_LD14,
+ PA21_PF_LD15,
+ PA22_PF_LD16,
+ PA23_PF_LD17,
+ PA24_PF_REV,
+ PA25_PF_CLS,
+ PA26_PF_PS,
+ PA27_PF_SPL_SPR,
+ PA28_PF_HSYNC,
+ PA29_PF_VSYNC,
+ PA30_PF_CONTRAST,
+ PA31_PF_OE_ACD,
+ /* OWIRE */
+ PE16_AF_OWIRE,
+ /* SDHC1*/
+ PE18_PF_SD1_D0,
+ PE19_PF_SD1_D1,
+ PE20_PF_SD1_D2,
+ PE21_PF_SD1_D3,
+ PE22_PF_SD1_CMD,
+ PE23_PF_SD1_CLK,
+ /* SDHC2*/
+ PB4_PF_SD2_D0,
+ PB5_PF_SD2_D1,
+ PB6_PF_SD2_D2,
+ PB7_PF_SD2_D3,
+ PB8_PF_SD2_CMD,
+ PB9_PF_SD2_CLK,
+};
+
+static const struct mxc_nand_platform_data
+mx27ads_nand_board_info __initconst = {
+ .width = 1,
+ .hw_ecc = 1,
+};
+
+/* ADS's NOR flash */
+static struct physmap_flash_data mx27ads_flash_data = {
+ .width = 2,
+};
+
+static struct resource mx27ads_flash_resource = {
+ .start = 0xc0000000,
+ .end = 0xc0000000 + 0x02000000 - 1,
+ .flags = IORESOURCE_MEM,
+
+};
+
+static struct platform_device mx27ads_nor_mtd_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &mx27ads_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &mx27ads_flash_resource,
+};
+
+static const struct imxi2c_platform_data mx27ads_i2c1_data __initconst = {
+ .bitrate = 100000,
+};
+
+static struct i2c_board_info mx27ads_i2c_devices[] = {
+};
+
+static void vgpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ if (value)
+ __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
+ else
+ __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
+}
+
+static int vgpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
+{
+ return 0;
+}
+
+#define MX27ADS_LCD_GPIO (6 * 32)
+
+static struct regulator_consumer_supply mx27ads_lcd_regulator_consumer =
+ REGULATOR_SUPPLY("lcd", "imx-fb.0");
+
+static struct regulator_init_data mx27ads_lcd_regulator_init_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+},
+ .consumer_supplies = &mx27ads_lcd_regulator_consumer,
+ .num_consumer_supplies = 1,
+};
+
+static struct fixed_voltage_config mx27ads_lcd_regulator_pdata = {
+ .supply_name = "LCD",
+ .microvolts = 3300000,
+ .gpio = MX27ADS_LCD_GPIO,
+ .init_data = &mx27ads_lcd_regulator_init_data,
+};
+
+static void __init mx27ads_regulator_init(void)
+{
+ struct gpio_chip *vchip;
+
+ vchip = kzalloc(sizeof(*vchip), GFP_KERNEL);
+ vchip->owner = THIS_MODULE;
+ vchip->label = "LCD";
+ vchip->base = MX27ADS_LCD_GPIO;
+ vchip->ngpio = 1;
+ vchip->direction_output = vgpio_dir_out;
+ vchip->set = vgpio_set;
+ gpiochip_add(vchip);
+
+ platform_device_register_data(NULL, "reg-fixed-voltage",
+ PLATFORM_DEVID_AUTO,
+ &mx27ads_lcd_regulator_pdata,
+ sizeof(mx27ads_lcd_regulator_pdata));
+}
+
+static struct imx_fb_videomode mx27ads_modes[] = {
+ {
+ .mode = {
+ .name = "Sharp-LQ035Q7",
+ .refresh = 60,
+ .xres = 240,
+ .yres = 320,
+ .pixclock = 188679, /* in ps (5.3MHz) */
+ .hsync_len = 1,
+ .left_margin = 9,
+ .right_margin = 16,
+ .vsync_len = 1,
+ .upper_margin = 7,
+ .lower_margin = 9,
+ },
+ .bpp = 16,
+ .pcr = 0xFB008BC0,
+ },
+};
+
+static const struct imx_fb_platform_data mx27ads_fb_data __initconst = {
+ .mode = mx27ads_modes,
+ .num_modes = ARRAY_SIZE(mx27ads_modes),
+
+ /*
+ * - HSYNC active high
+ * - VSYNC active high
+ * - clk notenabled while idle
+ * - clock inverted
+ * - data not inverted
+ * - data enable low active
+ * - enable sharp mode
+ */
+ .pwmr = 0x00A903FF,
+ .lscr1 = 0x00120300,
+ .dmacr = 0x00020010,
+};
+
+static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
+ void *data)
+{
+ return request_irq(gpio_to_irq(IMX_GPIO_NR(5, 21)), detect_irq,
+ IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
+}
+
+static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
+ void *data)
+{
+ return request_irq(gpio_to_irq(IMX_GPIO_NR(2, 7)), detect_irq,
+ IRQF_TRIGGER_RISING, "sdhc2-card-detect", data);
+}
+
+static void mx27ads_sdhc1_exit(struct device *dev, void *data)
+{
+ free_irq(gpio_to_irq(IMX_GPIO_NR(5, 21)), data);
+}
+
+static void mx27ads_sdhc2_exit(struct device *dev, void *data)
+{
+ free_irq(gpio_to_irq(IMX_GPIO_NR(2, 7)), data);
+}
+
+static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
+ .init = mx27ads_sdhc1_init,
+ .exit = mx27ads_sdhc1_exit,
+};
+
+static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
+ .init = mx27ads_sdhc2_init,
+ .exit = mx27ads_sdhc2_exit,
+};
+
+static struct platform_device *platform_devices[] __initdata = {
+ &mx27ads_nor_mtd_device,
+};
+
+static const struct imxuart_platform_data uart_pdata __initconst = {
+ .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static void __init mx27ads_board_init(void)
+{
+ imx27_soc_init();
+
+ mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
+ "mx27ads");
+
+ imx27_add_imx_uart0(&uart_pdata);
+ imx27_add_imx_uart1(&uart_pdata);
+ imx27_add_imx_uart2(&uart_pdata);
+ imx27_add_imx_uart3(&uart_pdata);
+ imx27_add_imx_uart4(&uart_pdata);
+ imx27_add_imx_uart5(&uart_pdata);
+ imx27_add_mxc_nand(&mx27ads_nand_board_info);
+
+ /* only the i2c master 1 is used on this CPU card */
+ i2c_register_board_info(1, mx27ads_i2c_devices,
+ ARRAY_SIZE(mx27ads_i2c_devices));
+ imx27_add_imx_i2c(1, &mx27ads_i2c1_data);
+ mx27ads_regulator_init();
+ imx27_add_imx_fb(&mx27ads_fb_data);
+ imx27_add_mxc_mmc(0, &sdhc1_pdata);
+ imx27_add_mxc_mmc(1, &sdhc2_pdata);
+
+ imx27_add_fec(NULL);
+ platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+ imx27_add_mxc_w1();
+}
+
+static void __init mx27ads_timer_init(void)
+{
+ unsigned long fref = 26000000;
+
+ if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
+ fref = 27000000;
+
+ mx27_clocks_init(fref);
+}
+
+static struct map_desc mx27ads_io_desc[] __initdata = {
+ {
+ .virtual = PBC_BASE_ADDRESS,
+ .pfn = __phys_to_pfn(MX27_CS4_BASE_ADDR),
+ .length = SZ_1M,
+ .type = MT_DEVICE,
+ },
+};
+
+static void __init mx27ads_map_io(void)
+{
+ mx27_map_io();
+ iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
+}
+
+MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
+ /* maintainer: Freescale Semiconductor, Inc. */
+ .atag_offset = 0x100,
+ .map_io = mx27ads_map_io,
+ .init_early = imx27_init_early,
+ .init_irq = mx27_init_irq,
+ .init_time = mx27ads_timer_init,
+ .init_machine = mx27ads_board_init,
+ .restart = mxc_restart,
+MACHINE_END