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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-mmp/ttc_dkb.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (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-mmp/ttc_dkb.c')
-rw-r--r-- | kernel/arch/arm/mach-mmp/ttc_dkb.c | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-mmp/ttc_dkb.c b/kernel/arch/arm/mach-mmp/ttc_dkb.c new file mode 100644 index 000000000..ac4af81de --- /dev/null +++ b/kernel/arch/arm/mach-mmp/ttc_dkb.c @@ -0,0 +1,315 @@ +/* + * linux/arch/arm/mach-mmp/ttc_dkb.c + * + * Support for the Marvell PXA910-based TTC_DKB Development Platform. + * + * 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 + * publishhed by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/onenand.h> +#include <linux/interrupt.h> +#include <linux/platform_data/pca953x.h> +#include <linux/gpio.h> +#include <linux/gpio-pxa.h> +#include <linux/mfd/88pm860x.h> +#include <linux/platform_data/mv_usb.h> +#include <linux/spi/spi.h> +#include <linux/delay.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <mach/addr-map.h> +#include <mach/mfp-pxa910.h> +#include <mach/pxa910.h> +#include <mach/irqs.h> +#include <mach/regs-usb.h> + +#include "common.h" + +#define TTCDKB_GPIO_EXT0(x) (MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 : \ + ((x < 16) ? x : 15))) +#define TTCDKB_GPIO_EXT1(x) (MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \ + ((x < 16) ? x : 15))) + +/* + * 16 board interrupts -- MAX7312 GPIO expander + * 16 board interrupts -- PCA9575 GPIO expander + * 24 board interrupts -- 88PM860x PMIC + */ +#define TTCDKB_NR_IRQS (MMP_NR_IRQS + 16 + 16 + 24) + +static unsigned long ttc_dkb_pin_config[] __initdata = { + /* UART2 */ + GPIO47_UART2_RXD, + GPIO48_UART2_TXD, + + /* DFI */ + DF_IO0_ND_IO0, + DF_IO1_ND_IO1, + DF_IO2_ND_IO2, + DF_IO3_ND_IO3, + DF_IO4_ND_IO4, + DF_IO5_ND_IO5, + DF_IO6_ND_IO6, + DF_IO7_ND_IO7, + DF_IO8_ND_IO8, + DF_IO9_ND_IO9, + DF_IO10_ND_IO10, + DF_IO11_ND_IO11, + DF_IO12_ND_IO12, + DF_IO13_ND_IO13, + DF_IO14_ND_IO14, + DF_IO15_ND_IO15, + DF_nCS0_SM_nCS2_nCS0, + DF_ALE_SM_WEn_ND_ALE, + DF_CLE_SM_OEn_ND_CLE, + DF_WEn_DF_WEn, + DF_REn_DF_REn, + DF_RDY0_DF_RDY0, +}; + +static struct pxa_gpio_platform_data pxa910_gpio_pdata = { + .irq_base = MMP_GPIO_TO_IRQ(0), +}; + +static struct mtd_partition ttc_dkb_onenand_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = SZ_1M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_8M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = (SZ_2M + SZ_1M), + .mask_flags = 0, + }, { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = SZ_32M + SZ_16M, + .mask_flags = 0, + } +}; + +static struct onenand_platform_data ttc_dkb_onenand_info = { + .parts = ttc_dkb_onenand_partitions, + .nr_parts = ARRAY_SIZE(ttc_dkb_onenand_partitions), +}; + +static struct resource ttc_dkb_resource_onenand[] = { + [0] = { + .start = SMC_CS0_PHYS_BASE, + .end = SMC_CS0_PHYS_BASE + SZ_1M, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device ttc_dkb_device_onenand = { + .name = "onenand-flash", + .id = -1, + .resource = ttc_dkb_resource_onenand, + .num_resources = ARRAY_SIZE(ttc_dkb_resource_onenand), + .dev = { + .platform_data = &ttc_dkb_onenand_info, + }, +}; + +static struct platform_device *ttc_dkb_devices[] = { + &pxa910_device_gpio, + &pxa910_device_rtc, + &ttc_dkb_device_onenand, +}; + +static struct pca953x_platform_data max7312_data[] = { + { + .gpio_base = TTCDKB_GPIO_EXT0(0), + .irq_base = MMP_NR_IRQS, + }, +}; + +static struct pm860x_platform_data ttc_dkb_pm8607_info = { + .irq_base = IRQ_BOARD_START, +}; + +static struct i2c_board_info ttc_dkb_i2c_info[] = { + { + .type = "88PM860x", + .addr = 0x34, + .platform_data = &ttc_dkb_pm8607_info, + .irq = IRQ_PXA910_PMIC_INT, + }, + { + .type = "max7312", + .addr = 0x23, + .irq = MMP_GPIO_TO_IRQ(80), + .platform_data = &max7312_data, + }, +}; + +#if IS_ENABLED(CONFIG_USB_SUPPORT) +#if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV_U2O) + +static struct mv_usb_platform_data ttc_usb_pdata = { + .vbus = NULL, + .mode = MV_USB_MODE_OTG, + .otg_force_a_bus_req = 1, + .phy_init = pxa_usb_phy_init, + .phy_deinit = pxa_usb_phy_deinit, + .set_vbus = NULL, +}; +#endif +#endif + +#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx) +static struct pxa3xx_nand_platform_data dkb_nand_info = { + .enable_arbiter = 1, + .num_cs = 1, +}; +#endif + +#if IS_ENABLED(CONFIG_MMP_DISP) +/* path config */ +#define CFG_IOPADMODE(iopad) (iopad) /* 0x0 ~ 0xd */ +#define SCLK_SOURCE_SELECT(x) (x << 30) /* 0x0 ~ 0x3 */ +/* link config */ +#define CFG_DUMBMODE(mode) (mode << 28) /* 0x0 ~ 0x6*/ +static struct mmp_mach_path_config dkb_disp_config[] = { + [0] = { + .name = "mmp-parallel", + .overlay_num = 2, + .output_type = PATH_OUT_PARALLEL, + .path_config = CFG_IOPADMODE(0x1) + | SCLK_SOURCE_SELECT(0x1), + .link_config = CFG_DUMBMODE(0x2), + }, +}; + +static struct mmp_mach_plat_info dkb_disp_info = { + .name = "mmp-disp", + .clk_name = "disp0", + .path_num = 1, + .paths = dkb_disp_config, +}; + +static struct mmp_buffer_driver_mach_info dkb_fb_info = { + .name = "mmp-fb", + .path_name = "mmp-parallel", + .overlay_id = 0, + .dmafetch_id = 1, + .default_pixfmt = PIXFMT_RGB565, +}; + +static void dkb_tpo_panel_power(int on) +{ + int err; + u32 spi_reset = mfp_to_gpio(MFP_PIN_GPIO106); + + if (on) { + err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET"); + if (err) { + pr_err("failed to request GPIO for TPO LCD RESET\n"); + return; + } + gpio_direction_output(spi_reset, 0); + udelay(100); + gpio_set_value(spi_reset, 1); + gpio_free(spi_reset); + } else { + err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET"); + if (err) { + pr_err("failed to request LCD RESET gpio\n"); + return; + } + gpio_set_value(spi_reset, 0); + gpio_free(spi_reset); + } +} + +static struct mmp_mach_panel_info dkb_tpo_panel_info = { + .name = "tpo-hvga", + .plat_path_name = "mmp-parallel", + .plat_set_onoff = dkb_tpo_panel_power, +}; + +static struct spi_board_info spi_board_info[] __initdata = { + { + .modalias = "tpo-hvga", + .platform_data = &dkb_tpo_panel_info, + .bus_num = 5, + } +}; + +static void __init add_disp(void) +{ + pxa_register_device(&pxa910_device_disp, + &dkb_disp_info, sizeof(dkb_disp_info)); + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); + pxa_register_device(&pxa910_device_fb, + &dkb_fb_info, sizeof(dkb_fb_info)); + pxa_register_device(&pxa910_device_panel, + &dkb_tpo_panel_info, sizeof(dkb_tpo_panel_info)); +} +#endif + +static void __init ttc_dkb_init(void) +{ + mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config)); + + /* on-chip devices */ + pxa910_add_uart(1); +#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx) + pxa910_add_nand(&dkb_nand_info); +#endif + + /* off-chip devices */ + pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info)); + platform_device_add_data(&pxa910_device_gpio, &pxa910_gpio_pdata, + sizeof(struct pxa_gpio_platform_data)); + platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices)); + +#if IS_ENABLED(CONFIG_USB_MV_UDC) + pxa168_device_u2o.dev.platform_data = &ttc_usb_pdata; + platform_device_register(&pxa168_device_u2o); +#endif + +#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O) + pxa168_device_u2oehci.dev.platform_data = &ttc_usb_pdata; + platform_device_register(&pxa168_device_u2oehci); +#endif + +#if IS_ENABLED(CONFIG_USB_MV_OTG) + pxa168_device_u2ootg.dev.platform_data = &ttc_usb_pdata; + platform_device_register(&pxa168_device_u2ootg); +#endif + +#if IS_ENABLED(CONFIG_MMP_DISP) + add_disp(); +#endif +} + +MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform") + .map_io = mmp_map_io, + .nr_irqs = TTCDKB_NR_IRQS, + .init_irq = pxa910_init_irq, + .init_time = pxa910_timer_init, + .init_machine = ttc_dkb_init, + .restart = mmp_restart, +MACHINE_END |