diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 12:05:15 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 12:05:15 -0800 |
commit | d027db132b395dabfac208e52a7e510e441bb9d2 (patch) | |
tree | 24b055b2385f9848e77e646ce475991d8675c3c4 /arch/arm/mach-clps711x/board-p720t.c | |
parent | d01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (diff) | |
parent | 5faf7cbb848da827f6ea1458b5a1c26a44e7510a (diff) |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates from Olof Johansson:
"This contains the bulk of new SoC development for this merge window.
Two new platforms have been added, the sunxi platforms (Allwinner A1x
SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
series of ARMv7 platforms from them, where the hope is that we can
keep the platform code generic enough to have them all share one mach
directory. The new Broadcom platform is contributed by Christian
Daudt.
Highbank has grown support for Calxeda's next generation of hardware,
ECX-2000.
clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
also taken on maintainership of the platform.
Beyond this there has been a bunch of work from a number of people on
converting more platforms to IRQ domains, pinctrl conversion, cleanup
and general feature enablement across most of the active platforms."
Fix up trivial conflicts as per Olof.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
mfd: vexpress-sysreg: Remove LEDs code
irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
irq: versatile: delete dangling variable
ARM: sunxi: add missing include for mdelay()
ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
ARM: dts: add node for PL330 MDMA1 controller for exynos4
ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
ARM: EXYNOS: add UART3 to DEBUG_LL ports
ARM: S3C24XX: Add clkdev entry for camif-upll clock
ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
ARM: sunxi: Add missing sun4i.dtsi file
pinctrl: samsung: Do not initialise statics to 0
ARM i.MX6: remove gate_mask from pllv3
ARM i.MX6: Fix ethernet PLL clocks
ARM i.MX6: rename PLLs according to datasheet
ARM i.MX6: Add pwm support
ARM i.MX51: Add pwm support
ARM i.MX53: Add pwm support
ARM: mx5: Replace clk_register_clkdev with clock DT lookup
...
Diffstat (limited to 'arch/arm/mach-clps711x/board-p720t.c')
-rw-r--r-- | arch/arm/mach-clps711x/board-p720t.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/arch/arm/mach-clps711x/board-p720t.c b/arch/arm/mach-clps711x/board-p720t.c new file mode 100644 index 00000000000..1518fc83bab --- /dev/null +++ b/arch/arm/mach-clps711x/board-p720t.c @@ -0,0 +1,232 @@ +/* + * linux/arch/arm/mach-clps711x/p720t.c + * + * Copyright (C) 2000-2001 Deep Blue Solutions Ltd + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/leds.h> +#include <linux/sizes.h> +#include <linux/backlight.h> +#include <linux/platform_device.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/nand-gpio.h> + +#include <mach/hardware.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <mach/syspld.h> + +#include <video/platform_lcd.h> + +#include "common.h" + +#define P720T_USERLED CLPS711X_GPIO(3, 0) +#define P720T_NAND_CLE CLPS711X_GPIO(4, 0) +#define P720T_NAND_ALE CLPS711X_GPIO(4, 1) +#define P720T_NAND_NCE CLPS711X_GPIO(4, 2) + +#define P720T_NAND_BASE (CLPS711X_SDRAM1_BASE) + +static struct resource p720t_nand_resource[] __initdata = { + DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4), +}; + +static struct mtd_partition p720t_nand_parts[] __initdata = { + { + .name = "Flash partition 1", + .offset = 0, + .size = SZ_2M, + }, + { + .name = "Flash partition 2", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct gpio_nand_platdata p720t_nand_pdata __initdata = { + .gpio_rdy = -1, + .gpio_nce = P720T_NAND_NCE, + .gpio_ale = P720T_NAND_ALE, + .gpio_cle = P720T_NAND_CLE, + .gpio_nwp = -1, + .chip_delay = 15, + .parts = p720t_nand_parts, + .num_parts = ARRAY_SIZE(p720t_nand_parts), +}; + +static struct platform_device p720t_nand_pdev __initdata = { + .name = "gpio-nand", + .id = -1, + .resource = p720t_nand_resource, + .num_resources = ARRAY_SIZE(p720t_nand_resource), + .dev = { + .platform_data = &p720t_nand_pdata, + }, +}; + +static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power) +{ + if (power) { + PLD_LCDEN = PLD_LCDEN_EN; + PLD_PWR |= PLD_S4_ON | PLD_S2_ON | PLD_S1_ON; + } else { + PLD_PWR &= ~(PLD_S4_ON | PLD_S2_ON | PLD_S1_ON); + PLD_LCDEN = 0; + } +} + +static struct plat_lcd_data p720t_lcd_power_pdata = { + .set_power = p720t_lcd_power_set, +}; + +static void p720t_lcd_backlight_set_intensity(int intensity) +{ + if (intensity) + PLD_PWR |= PLD_S3_ON; + else + PLD_PWR = 0; +} + +static struct generic_bl_info p720t_lcd_backlight_pdata = { + .name = "lcd-backlight.0", + .default_intensity = 0x01, + .max_intensity = 0x01, + .set_bl_intensity = p720t_lcd_backlight_set_intensity, +}; + +/* + * Map the P720T system PLD. It occupies two address spaces: + * 0x10000000 and 0x10400000. We map both regions as one. + */ +static struct map_desc p720t_io_desc[] __initdata = { + { + .virtual = SYSPLD_VIRT_BASE, + .pfn = __phys_to_pfn(SYSPLD_PHYS_BASE), + .length = SZ_8M, + .type = MT_DEVICE, + }, +}; + +static void __init +fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi) +{ + /* + * Our bootloader doesn't setup any tags (yet). + */ + if (tag->hdr.tag != ATAG_CORE) { + tag->hdr.tag = ATAG_CORE; + tag->hdr.size = tag_size(tag_core); + tag->u.core.flags = 0; + tag->u.core.pagesize = PAGE_SIZE; + tag->u.core.rootdev = 0x0100; + + tag = tag_next(tag); + tag->hdr.tag = ATAG_MEM; + tag->hdr.size = tag_size(tag_mem32); + tag->u.mem.size = 4096; + tag->u.mem.start = PHYS_OFFSET; + + tag = tag_next(tag); + tag->hdr.tag = ATAG_NONE; + tag->hdr.size = 0; + } +} + +static void __init p720t_map_io(void) +{ + clps711x_map_io(); + iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc)); +} + +static void __init p720t_init_early(void) +{ + /* + * Power down as much as possible in case we don't + * have the drivers loaded. + */ + PLD_LCDEN = 0; + PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); + + PLD_KBD = 0; + PLD_IO = 0; + PLD_IRDA = 0; + PLD_CODEC = 0; + PLD_TCH = 0; + PLD_SPI = 0; + if (!IS_ENABLED(CONFIG_DEBUG_LL)) { + PLD_COM2 = 0; + PLD_COM1 = 0; + } +} + +static struct gpio_led p720t_gpio_leds[] = { + { + .name = "User LED", + .default_trigger = "heartbeat", + .gpio = P720T_USERLED, + }, +}; + +static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = { + .leds = p720t_gpio_leds, + .num_leds = ARRAY_SIZE(p720t_gpio_leds), +}; + +static void __init p720t_init(void) +{ + platform_device_register(&p720t_nand_pdev); + platform_device_register_data(&platform_bus, "platform-lcd", 0, + &p720t_lcd_power_pdata, + sizeof(p720t_lcd_power_pdata)); + platform_device_register_data(&platform_bus, "generic-bl", 0, + &p720t_lcd_backlight_pdata, + sizeof(p720t_lcd_backlight_pdata)); + platform_device_register_simple("video-clps711x", 0, NULL, 0); +} + +static void __init p720t_init_late(void) +{ + platform_device_register_data(&platform_bus, "leds-gpio", 0, + &p720t_gpio_led_pdata, + sizeof(p720t_gpio_led_pdata)); +} + +MACHINE_START(P720T, "ARM-Prospector720T") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .atag_offset = 0x100, + .nr_irqs = CLPS711X_NR_IRQS, + .fixup = fixup_p720t, + .map_io = p720t_map_io, + .init_early = p720t_init_early, + .init_irq = clps711x_init_irq, + .timer = &clps711x_timer, + .init_machine = p720t_init, + .init_late = p720t_init_late, + .handle_irq = clps711x_handle_irq, + .restart = clps711x_restart, +MACHINE_END |