diff options
Diffstat (limited to 'arch/arm/mach-tegra/board-apalis-tk1-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-apalis-tk1-panel.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-apalis-tk1-panel.c b/arch/arm/mach-tegra/board-apalis-tk1-panel.c new file mode 100644 index 000000000000..4de2b009db33 --- /dev/null +++ b/arch/arm/mach-tegra/board-apalis-tk1-panel.c @@ -0,0 +1,201 @@ +/* + * arch/arm/mach-tegra/board-apalis-tk1-panel.c + * + * Copyright (c) 2016, Toradex AG. 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. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/ioport.h> +#include <linux/fb.h> +#include <linux/nvmap.h> +#include <linux/nvhost.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/dma-contiguous.h> +#include <linux/clk.h> +#include <linux/dma-mapping.h> + +#include <mach/irqs.h> +#include <mach/dc.h> +#include <mach/io_dpd.h> + +#include "board.h" +#include "tegra-board-id.h" +#include "devices.h" +#include "gpio-names.h" +#include "board-apalis-tk1.h" +#include "board-panel.h" +#include "common.h" +#include "iomap.h" +#include "tegra12_host1x_devices.h" +#include "dvfs.h" + +struct platform_device *__init apalis_tk1_host1x_init(void) +{ + struct platform_device *pdev = NULL; + +#ifdef CONFIG_TEGRA_GRHOST + if (!of_have_populated_dt()) + pdev = tegra12_register_host1x_devices(); + else + pdev = + to_platform_device(bus_find_device_by_name + (&platform_bus_type, NULL, "host1x")); + + if (!pdev) { + pr_err("host1x devices registration failed\n"); + return NULL; + } +#endif + return pdev; +} + +static struct nvmap_platform_carveout apalis_tk1_carveouts[] = { + [0] = { + .name = "iram", + .usage_mask = NVMAP_HEAP_CARVEOUT_IRAM, + .base = TEGRA_IRAM_BASE + TEGRA_RESET_HANDLER_SIZE, + .size = TEGRA_IRAM_SIZE - TEGRA_RESET_HANDLER_SIZE, + .dma_dev = &tegra_iram_dev, + }, + [1] = { + .name = "generic-0", + .usage_mask = NVMAP_HEAP_CARVEOUT_GENERIC, + .base = 0, /* Filled in by apalis_tk1_panel_init() */ + .size = 0, /* Filled in by apalis_tk1_panel_init() */ + .dma_dev = &tegra_generic_dev, + }, + [2] = { + .name = "vpr", + .usage_mask = NVMAP_HEAP_CARVEOUT_VPR, + .base = 0, /* Filled in by apalis_tk1_panel_init() */ + .size = 0, /* Filled in by apalis_tk1_panel_init() */ + .dma_dev = &tegra_vpr_dev, + }, +}; + +static struct nvmap_platform_data apalis_tk1_nvmap_data = { + .carveouts = apalis_tk1_carveouts, + .nr_carveouts = ARRAY_SIZE(apalis_tk1_carveouts), +}; + +static struct platform_device apalis_tk1_nvmap_device = { + .name = "tegra-nvmap", + .id = -1, + .dev = { + .platform_data = &apalis_tk1_nvmap_data, + }, +}; + + +int __init apalis_tk1_panel_init(void) +{ + int err = 0; + struct resource __maybe_unused *res; + struct platform_device *phost1x = NULL; + +#ifdef CONFIG_NVMAP_USE_CMA_FOR_CARVEOUT + struct dma_declare_info vpr_dma_info; + struct dma_declare_info generic_dma_info; +#endif + +#ifdef CONFIG_TEGRA_NVMAP + apalis_tk1_carveouts[1].base = tegra_carveout_start; + apalis_tk1_carveouts[1].size = tegra_carveout_size; + + apalis_tk1_carveouts[2].base = tegra_vpr_start; + apalis_tk1_carveouts[2].size = tegra_vpr_size; + +#ifdef CONFIG_NVMAP_USE_CMA_FOR_CARVEOUT + generic_dma_info.name = "generic"; + generic_dma_info.base = tegra_carveout_start; + generic_dma_info.size = tegra_carveout_size; + generic_dma_info.resize = false; + generic_dma_info.cma_dev = NULL; + + vpr_dma_info.name = "vpr"; + vpr_dma_info.base = tegra_vpr_start; + vpr_dma_info.size = tegra_vpr_size; + vpr_dma_info.resize = false; + vpr_dma_info.cma_dev = NULL; + apalis_tk1_carveouts[1].cma_dev = &tegra_generic_cma_dev; + apalis_tk1_carveouts[1].resize = false; + apalis_tk1_carveouts[2].cma_dev = &tegra_vpr_cma_dev; + apalis_tk1_carveouts[2].resize = true; + + vpr_dma_info.size = SZ_32M; + vpr_dma_info.resize = true; + vpr_dma_info.cma_dev = &tegra_vpr_cma_dev; + vpr_dma_info.notifier.ops = &vpr_dev_ops; + + if (tegra_carveout_size) { + err = dma_declare_coherent_resizable_cma_memory( + &tegra_generic_dev, &generic_dma_info); + if (err) { + pr_err("Generic coherent memory declaration failed\n"); + return err; + } + } + if (tegra_vpr_size) { + err = + dma_declare_coherent_resizable_cma_memory(&tegra_vpr_dev, + &vpr_dma_info); + if (err) { + pr_err("VPR coherent memory declaration failed\n"); + return err; + } + } +#endif + + err = platform_device_register(&apalis_tk1_nvmap_device); + if (err) { + pr_err("nvmap device registration failed\n"); + return err; + } +#endif + + phost1x = apalis_tk1_host1x_init(); + if (!phost1x) { + pr_err("host1x devices registration failed\n"); + return -EINVAL; + } + + if (tegra_bootloader_fb_size) + __tegra_move_framebuffer(&apalis_tk1_nvmap_device, + tegra_fb_start, + tegra_bootloader_fb_start, + min(tegra_fb_size, + tegra_bootloader_fb_size)); + else + __tegra_clear_framebuffer(&apalis_tk1_nvmap_device, + tegra_fb_start, tegra_fb_size); + + /* Copy the bootloader fb2 to the fb2. */ + if (tegra_bootloader_fb2_size) + __tegra_move_framebuffer(&apalis_tk1_nvmap_device, + tegra_fb2_start, + tegra_bootloader_fb2_start, + min(tegra_fb2_size, + tegra_bootloader_fb2_size)); + else + __tegra_clear_framebuffer(&apalis_tk1_nvmap_device, + tegra_fb2_start, tegra_fb2_size); + + return err; +} |