v4.19.13 snapshot.
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
new file mode 100644
index 0000000..fe2ef9b
--- /dev/null
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -0,0 +1,628 @@
+/*
+ * linux/arch/arm/mach-pxa/lubbock.c
+ *
+ * Support for the Intel DBPXA250 Development Platform.
+ *
+ * Author: Nicolas Pitre
+ * Created: Jun 15, 2001
+ * Copyright: MontaVista Software Inc.
+ *
+ * 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/clkdev.h>
+#include <linux/gpio.h>
+#include <linux/gpio/gpio-reg.h>
+#include <linux/gpio/machine.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/syscore_ops.h>
+#include <linux/major.h>
+#include <linux/fb.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/smc91x.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/spi/pxa2xx_spi.h>
+
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
+
+#include <asm/hardware/sa1111.h>
+
+#include "pxa25x.h"
+#include <mach/audio.h>
+#include <mach/lubbock.h>
+#include "udc.h"
+#include <linux/platform_data/irda-pxaficp.h>
+#include <linux/platform_data/video-pxafb.h>
+#include <linux/platform_data/mmc-pxamci.h>
+#include "pm.h"
+#include <mach/smemc.h>
+
+#include "generic.h"
+#include "devices.h"
+
+static unsigned long lubbock_pin_config[] __initdata = {
+ GPIO15_nCS_1, /* CS1 - Flash */
+ GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
+ GPIO79_nCS_3, /* CS3 - SMC ethernet */
+ GPIO80_nCS_4, /* CS4 - SA1111 */
+
+ /* SSP data pins */
+ GPIO23_SSP1_SCLK,
+ GPIO25_SSP1_TXD,
+ GPIO26_SSP1_RXD,
+
+ /* AC97 */
+ GPIO28_AC97_BITCLK,
+ GPIO29_AC97_SDATA_IN_0,
+ GPIO30_AC97_SDATA_OUT,
+ GPIO31_AC97_SYNC,
+
+ /* LCD - 16bpp DSTN */
+ GPIOxx_LCD_DSTN_16BPP,
+
+ /* BTUART */
+ GPIO42_BTUART_RXD,
+ GPIO43_BTUART_TXD,
+ GPIO44_BTUART_CTS,
+ GPIO45_BTUART_RTS,
+
+ /* PC Card */
+ GPIO48_nPOE,
+ GPIO49_nPWE,
+ GPIO50_nPIOR,
+ GPIO51_nPIOW,
+ GPIO52_nPCE_1,
+ GPIO53_nPCE_2,
+ GPIO54_nPSKTSEL,
+ GPIO55_nPREG,
+ GPIO56_nPWAIT,
+ GPIO57_nIOIS16,
+
+ /* MMC */
+ GPIO6_MMC_CLK,
+ GPIO8_MMC_CS0,
+
+ /* SA1111 chip */
+ GPIO11_3_6MHz,
+
+ /* wakeup */
+ GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
+};
+
+#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
+
+void lubbock_set_hexled(uint32_t value)
+{
+ LUB_HEXLED = value;
+}
+
+static struct gpio_chip *lubbock_misc_wr_gc;
+
+void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
+{
+ unsigned long m = mask, v = set;
+ lubbock_misc_wr_gc->set_multiple(lubbock_misc_wr_gc, &m, &v);
+}
+EXPORT_SYMBOL(lubbock_set_misc_wr);
+
+static int lubbock_udc_is_connected(void)
+{
+ return (LUB_MISC_RD & (1 << 9)) == 0;
+}
+
+static struct pxa2xx_udc_mach_info udc_info __initdata = {
+ .udc_is_connected = lubbock_udc_is_connected,
+ // no D+ pullup; lubbock can't connect/disconnect in software
+};
+
+static void lubbock_init_pcmcia(void)
+{
+ struct clk *clk;
+
+ /* Add an alias for the SA1111 PCMCIA clock */
+ clk = clk_get_sys("pxa2xx-pcmcia", NULL);
+ if (!IS_ERR(clk)) {
+ clkdev_create(clk, NULL, "1800");
+ clk_put(clk);
+ }
+}
+
+static struct resource sa1111_resources[] = {
+ [0] = {
+ .start = 0x10000000,
+ .end = 0x10001fff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = LUBBOCK_SA1111_IRQ,
+ .end = LUBBOCK_SA1111_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct sa1111_platform_data sa1111_info = {
+ .irq_base = LUBBOCK_SA1111_IRQ_BASE,
+ .disable_devs = SA1111_DEVID_SAC,
+};
+
+static struct platform_device sa1111_device = {
+ .name = "sa1111",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(sa1111_resources),
+ .resource = sa1111_resources,
+ .dev = {
+ .platform_data = &sa1111_info,
+ },
+};
+
+/* ADS7846 is connected through SSP ... and if your board has J5 populated,
+ * you can select it to replace the ucb1400 by switching the touchscreen cable
+ * (to J5) and poking board registers (as done below). Else it's only useful
+ * for the temperature sensors.
+ */
+static struct pxa2xx_spi_master pxa_ssp_master_info = {
+ .num_chipselect = 1,
+};
+
+static int lubbock_ads7846_pendown_state(void)
+{
+ /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
+ return 0;
+}
+
+static struct ads7846_platform_data ads_info = {
+ .model = 7846,
+ .vref_delay_usecs = 100, /* internal, no cap */
+ .get_pendown_state = lubbock_ads7846_pendown_state,
+ // .x_plate_ohms = 500, /* GUESS! */
+ // .y_plate_ohms = 500, /* GUESS! */
+};
+
+static void ads7846_cs(u32 command)
+{
+ static const unsigned TS_nCS = 1 << 11;
+ lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
+}
+
+static struct pxa2xx_spi_chip ads_hw = {
+ .tx_threshold = 1,
+ .rx_threshold = 2,
+ .cs_control = ads7846_cs,
+};
+
+static struct spi_board_info spi_board_info[] __initdata = { {
+ .modalias = "ads7846",
+ .platform_data = &ads_info,
+ .controller_data = &ads_hw,
+ .irq = LUBBOCK_BB_IRQ,
+ .max_speed_hz = 120000 /* max sample rate at 3V */
+ * 26 /* command + data + overhead */,
+ .bus_num = 1,
+ .chip_select = 0,
+},
+};
+
+static struct resource smc91x_resources[] = {
+ [0] = {
+ .name = "smc91x-regs",
+ .start = 0x0c000c00,
+ .end = 0x0c0fffff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = LUBBOCK_ETH_IRQ,
+ .end = LUBBOCK_ETH_IRQ,
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+ },
+ [2] = {
+ .name = "smc91x-attrib",
+ .start = 0x0e000000,
+ .end = 0x0e0fffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct smc91x_platdata lubbock_smc91x_info = {
+ .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
+};
+
+static struct platform_device smc91x_device = {
+ .name = "smc91x",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(smc91x_resources),
+ .resource = smc91x_resources,
+ .dev = {
+ .platform_data = &lubbock_smc91x_info,
+ },
+};
+
+static struct resource flash_resources[] = {
+ [0] = {
+ .start = 0x00000000,
+ .end = SZ_64M - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = 0x04000000,
+ .end = 0x04000000 + SZ_64M - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct mtd_partition lubbock_partitions[] = {
+ {
+ .name = "Bootloader",
+ .size = 0x00040000,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE /* force read-only */
+ },{
+ .name = "Kernel",
+ .size = 0x00100000,
+ .offset = 0x00040000,
+ },{
+ .name = "Filesystem",
+ .size = MTDPART_SIZ_FULL,
+ .offset = 0x00140000
+ }
+};
+
+static struct flash_platform_data lubbock_flash_data[2] = {
+ {
+ .map_name = "cfi_probe",
+ .parts = lubbock_partitions,
+ .nr_parts = ARRAY_SIZE(lubbock_partitions),
+ }, {
+ .map_name = "cfi_probe",
+ .parts = NULL,
+ .nr_parts = 0,
+ }
+};
+
+static struct platform_device lubbock_flash_device[2] = {
+ {
+ .name = "pxa2xx-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &lubbock_flash_data[0],
+ },
+ .resource = &flash_resources[0],
+ .num_resources = 1,
+ },
+ {
+ .name = "pxa2xx-flash",
+ .id = 1,
+ .dev = {
+ .platform_data = &lubbock_flash_data[1],
+ },
+ .resource = &flash_resources[1],
+ .num_resources = 1,
+ },
+};
+
+static struct resource lubbock_cplds_resources[] = {
+ [0] = {
+ .start = LUBBOCK_FPGA_PHYS + 0xc0,
+ .end = LUBBOCK_FPGA_PHYS + 0xe0 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = PXA_GPIO_TO_IRQ(0),
+ .end = PXA_GPIO_TO_IRQ(0),
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
+ },
+ [2] = {
+ .start = LUBBOCK_IRQ(0),
+ .end = LUBBOCK_IRQ(6),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device lubbock_cplds_device = {
+ .name = "pxa_cplds_irqs",
+ .id = -1,
+ .resource = &lubbock_cplds_resources[0],
+ .num_resources = 3,
+};
+
+
+static struct platform_device *devices[] __initdata = {
+ &sa1111_device,
+ &smc91x_device,
+ &lubbock_flash_device[0],
+ &lubbock_flash_device[1],
+ &lubbock_cplds_device,
+};
+
+static struct pxafb_mode_info sharp_lm8v31_mode = {
+ .pixclock = 270000,
+ .xres = 640,
+ .yres = 480,
+ .bpp = 16,
+ .hsync_len = 1,
+ .left_margin = 3,
+ .right_margin = 3,
+ .vsync_len = 1,
+ .upper_margin = 0,
+ .lower_margin = 0,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ .cmap_greyscale = 0,
+};
+
+static struct pxafb_mach_info sharp_lm8v31 = {
+ .modes = &sharp_lm8v31_mode,
+ .num_modes = 1,
+ .cmap_inverse = 0,
+ .cmap_static = 0,
+ .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
+ LCD_AC_BIAS_FREQ(255),
+};
+
+#define MMC_POLL_RATE msecs_to_jiffies(1000)
+
+static irq_handler_t mmc_detect_int;
+static void *mmc_detect_int_data;
+static struct timer_list mmc_timer;
+
+static void lubbock_mmc_poll(struct timer_list *unused)
+{
+ unsigned long flags;
+
+ /* clear any previous irq state, then ... */
+ local_irq_save(flags);
+ LUB_IRQ_SET_CLR &= ~(1 << 0);
+ local_irq_restore(flags);
+
+ /* poll until mmc/sd card is removed */
+ if (LUB_IRQ_SET_CLR & (1 << 0))
+ mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
+ else {
+ (void) mmc_detect_int(LUBBOCK_SD_IRQ, mmc_detect_int_data);
+ enable_irq(LUBBOCK_SD_IRQ);
+ }
+}
+
+static irqreturn_t lubbock_detect_int(int irq, void *data)
+{
+ /* IRQ is level triggered; disable, and poll for removal */
+ disable_irq(irq);
+ mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
+
+ return mmc_detect_int(irq, data);
+}
+
+static int lubbock_mci_init(struct device *dev,
+ irq_handler_t detect_int,
+ void *data)
+{
+ /* detect card insert/eject */
+ mmc_detect_int = detect_int;
+ mmc_detect_int_data = data;
+ timer_setup(&mmc_timer, lubbock_mmc_poll, 0);
+ return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
+ 0, "lubbock-sd-detect", data);
+}
+
+static int lubbock_mci_get_ro(struct device *dev)
+{
+ return (LUB_MISC_RD & (1 << 2)) != 0;
+}
+
+static void lubbock_mci_exit(struct device *dev, void *data)
+{
+ free_irq(LUBBOCK_SD_IRQ, data);
+ del_timer_sync(&mmc_timer);
+}
+
+static struct pxamci_platform_data lubbock_mci_platform_data = {
+ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
+ .detect_delay_ms = 10,
+ .init = lubbock_mci_init,
+ .get_ro = lubbock_mci_get_ro,
+ .exit = lubbock_mci_exit,
+ .gpio_card_detect = -1,
+ .gpio_card_ro = -1,
+ .gpio_power = -1,
+};
+
+static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ if (mode & IR_SIRMODE) {
+ lubbock_set_misc_wr(BIT(4), 0);
+ } else if (mode & IR_FIRMODE) {
+ lubbock_set_misc_wr(BIT(4), BIT(4));
+ }
+ pxa2xx_transceiver_mode(dev, mode);
+ local_irq_restore(flags);
+}
+
+static struct pxaficp_platform_data lubbock_ficp_platform_data = {
+ .gpio_pwdown = -1,
+ .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
+ .transceiver_mode = lubbock_irda_transceiver_mode,
+};
+
+static void __init lubbock_init(void)
+{
+ int flashboot = (LUB_CONF_SWITCHES & 1);
+
+ pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
+
+ lubbock_misc_wr_gc = gpio_reg_init(NULL, (void *)&LUB_MISC_WR,
+ -1, 16, "lubbock", 0, LUB_MISC_WR,
+ NULL, NULL, NULL);
+ if (IS_ERR(lubbock_misc_wr_gc)) {
+ pr_err("Lubbock: unable to register lubbock GPIOs: %ld\n",
+ PTR_ERR(lubbock_misc_wr_gc));
+ lubbock_misc_wr_gc = NULL;
+ }
+
+ pxa_set_ffuart_info(NULL);
+ pxa_set_btuart_info(NULL);
+ pxa_set_stuart_info(NULL);
+
+ lubbock_init_pcmcia();
+
+ clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
+ pxa_set_udc_info(&udc_info);
+ pxa_set_fb_info(NULL, &sharp_lm8v31);
+ pxa_set_mci_info(&lubbock_mci_platform_data);
+ pxa_set_ficp_info(&lubbock_ficp_platform_data);
+ pxa_set_ac97_info(NULL);
+
+ lubbock_flash_data[0].width = lubbock_flash_data[1].width =
+ (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
+ /* Compensate for the nROMBT switch which swaps the flash banks */
+ printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
+ flashboot?"Flash":"ROM", flashboot);
+
+ lubbock_flash_data[flashboot^1].name = "application-flash";
+ lubbock_flash_data[flashboot].name = "boot-rom";
+ (void) platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
+ spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
+}
+
+static struct map_desc lubbock_io_desc[] __initdata = {
+ { /* CPLD */
+ .virtual = LUBBOCK_FPGA_VIRT,
+ .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
+ .length = 0x00100000,
+ .type = MT_DEVICE
+ }
+};
+
+static void __init lubbock_map_io(void)
+{
+ pxa25x_map_io();
+ iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
+
+ PCFR |= PCFR_OPDE;
+}
+
+/*
+ * Driver for the 8 discrete LEDs available for general use:
+ * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
+ * so be sure to not monkey with them here.
+ */
+
+#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
+struct lubbock_led {
+ struct led_classdev cdev;
+ u8 mask;
+};
+
+/*
+ * The triggers lines up below will only be used if the
+ * LED triggers are compiled in.
+ */
+static const struct {
+ const char *name;
+ const char *trigger;
+} lubbock_leds[] = {
+ { "lubbock:D28", "default-on", },
+ { "lubbock:D27", "cpu0", },
+ { "lubbock:D26", "heartbeat" },
+ { "lubbock:D25", },
+ { "lubbock:D24", },
+ { "lubbock:D23", },
+ { "lubbock:D22", },
+ { "lubbock:D21", },
+};
+
+static void lubbock_led_set(struct led_classdev *cdev,
+ enum led_brightness b)
+{
+ struct lubbock_led *led = container_of(cdev,
+ struct lubbock_led, cdev);
+ u32 reg = LUB_DISC_BLNK_LED;
+
+ if (b != LED_OFF)
+ reg |= led->mask;
+ else
+ reg &= ~led->mask;
+
+ LUB_DISC_BLNK_LED = reg;
+}
+
+static enum led_brightness lubbock_led_get(struct led_classdev *cdev)
+{
+ struct lubbock_led *led = container_of(cdev,
+ struct lubbock_led, cdev);
+ u32 reg = LUB_DISC_BLNK_LED;
+
+ return (reg & led->mask) ? LED_FULL : LED_OFF;
+}
+
+static int __init lubbock_leds_init(void)
+{
+ int i;
+
+ if (!machine_is_lubbock())
+ return -ENODEV;
+
+ /* All ON */
+ LUB_DISC_BLNK_LED |= 0xff;
+ for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) {
+ struct lubbock_led *led;
+
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (!led)
+ break;
+
+ led->cdev.name = lubbock_leds[i].name;
+ led->cdev.brightness_set = lubbock_led_set;
+ led->cdev.brightness_get = lubbock_led_get;
+ led->cdev.default_trigger = lubbock_leds[i].trigger;
+ led->mask = BIT(i);
+
+ if (led_classdev_register(NULL, &led->cdev) < 0) {
+ kfree(led);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Since we may have triggers on any subsystem, defer registration
+ * until after subsystem_init.
+ */
+fs_initcall(lubbock_leds_init);
+#endif
+
+MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
+ /* Maintainer: MontaVista Software Inc. */
+ .map_io = lubbock_map_io,
+ .nr_irqs = LUBBOCK_NR_IRQS,
+ .init_irq = pxa25x_init_irq,
+ .handle_irq = pxa25x_handle_irq,
+ .init_time = pxa_timer_init,
+ .init_machine = lubbock_init,
+ .restart = pxa_restart,
+MACHINE_END