diff options
Diffstat (limited to 'arch/sh/boards/mach-migor/setup.c')
| -rw-r--r-- | arch/sh/boards/mach-migor/setup.c | 225 |
1 files changed, 100 insertions, 125 deletions
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index 0bcbe58b11e9..271dfc260e82 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -1,17 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Renesas System Solutions Asia Pte. Ltd - Migo-R * * Copyright (C) 2008 Magnus Damm - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ +#include <linux/clkdev.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/input/sh_keysc.h> +#include <linux/memblock.h> #include <linux/mmc/host.h> #include <linux/mtd/physmap.h> #include <linux/mfd/tmio.h> @@ -23,10 +22,11 @@ #include <linux/delay.h> #include <linux/clk.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/videodev2.h> #include <linux/sh_intc.h> #include <video/sh_mobile_lcdc.h> -#include <media/drv-intf/sh_mobile_ceu.h> +#include <media/drv-intf/renesas-ceu.h> #include <media/i2c/ov772x.h> #include <media/soc_camera.h> #include <media/i2c/tw9910.h> @@ -45,6 +45,9 @@ * 0x18000000 8GB 8 NAND Flash (K9K8G08U0A) */ +#define CEU_BUFFER_MEMORY_SIZE (4 << 20) +static phys_addr_t ceu_dma_membase; + static struct smc91x_platdata smc91x_info = { .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, }; @@ -301,65 +304,24 @@ static struct platform_device migor_lcdc_device = { }, }; -static struct clk *camera_clk; -static DEFINE_MUTEX(camera_lock); - -static void camera_power_on(int is_tw) -{ - mutex_lock(&camera_lock); - - /* Use 10 MHz VIO_CKO instead of 24 MHz to work - * around signal quality issues on Panel Board V2.1. - */ - camera_clk = clk_get(NULL, "video_clk"); - clk_set_rate(camera_clk, 10000000); - clk_enable(camera_clk); /* start VIO_CKO */ - - /* use VIO_RST to take camera out of reset */ - mdelay(10); - if (is_tw) { - gpio_set_value(GPIO_PTT2, 0); - gpio_set_value(GPIO_PTT0, 0); - } else { - gpio_set_value(GPIO_PTT0, 1); - } - gpio_set_value(GPIO_PTT3, 0); - mdelay(10); - gpio_set_value(GPIO_PTT3, 1); - mdelay(10); /* wait to let chip come out of reset */ -} - -static void camera_power_off(void) -{ - clk_disable(camera_clk); /* stop VIO_CKO */ - clk_put(camera_clk); - - gpio_set_value(GPIO_PTT3, 0); - mutex_unlock(&camera_lock); -} - -static int ov7725_power(struct device *dev, int mode) -{ - if (mode) - camera_power_on(0); - else - camera_power_off(); - - return 0; -} - -static int tw9910_power(struct device *dev, int mode) -{ - if (mode) - camera_power_on(1); - else - camera_power_off(); - - return 0; -} - -static struct sh_mobile_ceu_info sh_mobile_ceu_info = { - .flags = SH_CEU_FLAG_USE_8BIT_BUS, +static struct ceu_platform_data ceu_pdata = { + .num_subdevs = 2, + .subdevs = { + { /* [0] = ov772x */ + .flags = 0, + .bus_width = 8, + .bus_shift = 0, + .i2c_adapter_id = 0, + .i2c_address = 0x21, + }, + { /* [1] = tw9910 */ + .flags = 0, + .bus_width = 8, + .bus_shift = 0, + .i2c_adapter_id = 0, + .i2c_address = 0x45, + }, + }, }; static struct resource migor_ceu_resources[] = { @@ -373,18 +335,32 @@ static struct resource migor_ceu_resources[] = { .start = evt2irq(0x880), .flags = IORESOURCE_IRQ, }, - [2] = { - /* place holder for contiguous memory */ - }, }; static struct platform_device migor_ceu_device = { - .name = "sh_mobile_ceu", - .id = 0, /* "ceu0" clock */ + .name = "renesas-ceu", + .id = 0, /* ceu.0 */ .num_resources = ARRAY_SIZE(migor_ceu_resources), .resource = migor_ceu_resources, .dev = { - .platform_data = &sh_mobile_ceu_info, + .platform_data = &ceu_pdata, + }, +}; + +/* Powerdown/reset gpios for CEU image sensors */ +static struct gpiod_lookup_table ov7725_gpios = { + .dev_id = "0-0021", + .table = { + GPIO_LOOKUP("sh7722_pfc", GPIO_PTT0, "pwdn", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "rstb", GPIO_ACTIVE_LOW), + }, +}; + +static struct gpiod_lookup_table tw9910_gpios = { + .dev_id = "0-0045", + .table = { + GPIO_LOOKUP("sh7722_pfc", GPIO_PTT2, "pdn", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "rstb", GPIO_ACTIVE_LOW), }, }; @@ -423,6 +399,15 @@ static struct platform_device sdhi_cn9_device = { }, }; +static struct ov772x_camera_info ov7725_info = { + .flags = 0, +}; + +static struct tw9910_video_info tw9910_info = { + .buswidth = 8, + .mpout = TW9910_MPO_FIELD, +}; + static struct i2c_board_info migor_i2c_devices[] = { { I2C_BOARD_INFO("rs5c372b", 0x32), @@ -434,51 +419,13 @@ static struct i2c_board_info migor_i2c_devices[] = { { I2C_BOARD_INFO("wm8978", 0x1a), }, -}; - -static struct i2c_board_info migor_i2c_camera[] = { { I2C_BOARD_INFO("ov772x", 0x21), + .platform_data = &ov7725_info, }, { I2C_BOARD_INFO("tw9910", 0x45), - }, -}; - -static struct ov772x_camera_info ov7725_info; - -static struct soc_camera_link ov7725_link = { - .power = ov7725_power, - .board_info = &migor_i2c_camera[0], - .i2c_adapter_id = 0, - .priv = &ov7725_info, -}; - -static struct tw9910_video_info tw9910_info = { - .buswidth = SOCAM_DATAWIDTH_8, - .mpout = TW9910_MPO_FIELD, -}; - -static struct soc_camera_link tw9910_link = { - .power = tw9910_power, - .board_info = &migor_i2c_camera[1], - .i2c_adapter_id = 0, - .priv = &tw9910_info, -}; - -static struct platform_device migor_camera[] = { - { - .name = "soc-camera-pdrv", - .id = 0, - .dev = { - .platform_data = &ov7725_link, - }, - }, { - .name = "soc-camera-pdrv", - .id = 1, - .dev = { - .platform_data = &tw9910_link, - }, + .platform_data = &tw9910_info, }, }; @@ -486,12 +433,9 @@ static struct platform_device *migor_devices[] __initdata = { &smc91x_eth_device, &sh_keysc_device, &migor_lcdc_device, - &migor_ceu_device, &migor_nor_flash_device, &migor_nand_flash_device, &sdhi_cn9_device, - &migor_camera[0], - &migor_camera[1], }; extern char migor_sdram_enter_start; @@ -501,6 +445,8 @@ extern char migor_sdram_leave_end; static int __init migor_devices_setup(void) { + struct clk *video_clk; + /* register board specific self-refresh code */ sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF, &migor_sdram_enter_start, @@ -620,20 +566,8 @@ static int __init migor_devices_setup(void) gpio_request(GPIO_FN_VIO_D9, NULL); gpio_request(GPIO_FN_VIO_D8, NULL); - gpio_request(GPIO_PTT3, NULL); /* VIO_RST */ - gpio_direction_output(GPIO_PTT3, 0); - gpio_request(GPIO_PTT2, NULL); /* TV_IN_EN */ - gpio_direction_output(GPIO_PTT2, 1); - gpio_request(GPIO_PTT0, NULL); /* CAM_EN */ -#ifdef CONFIG_SH_MIGOR_RTA_WVGA - gpio_direction_output(GPIO_PTT0, 0); -#else - gpio_direction_output(GPIO_PTT0, 1); -#endif __raw_writew(__raw_readw(PORT_MSELCRB) | 0x2000, PORT_MSELCRB); /* D15->D8 */ - platform_resource_setup_memory(&migor_ceu_device, "ceu", 4 << 20); - /* SIU: Port B */ gpio_request(GPIO_FN_SIUBOLR, NULL); gpio_request(GPIO_FN_SIUBOBT, NULL); @@ -647,9 +581,36 @@ static int __init migor_devices_setup(void) */ __raw_writew(__raw_readw(PORT_MSELCRA) | 1, PORT_MSELCRA); + /* + * Use 10 MHz VIO_CKO instead of 24 MHz to work around signal quality + * issues on Panel Board V2.1. + */ + video_clk = clk_get(NULL, "video_clk"); + if (!IS_ERR(video_clk)) { + clk_set_rate(video_clk, clk_round_rate(video_clk, 10000000)); + clk_put(video_clk); + } + + /* Add a clock alias for ov7725 xclk source. */ + clk_add_alias("xclk", "0-0021", "video_clk", NULL); + + /* Register GPIOs for video sources. */ + gpiod_add_lookup_table(&ov7725_gpios); + gpiod_add_lookup_table(&tw9910_gpios); + i2c_register_board_info(0, migor_i2c_devices, ARRAY_SIZE(migor_i2c_devices)); + /* Initialize CEU platform device separately to map memory first */ + device_initialize(&migor_ceu_device.dev); + arch_setup_pdev_archdata(&migor_ceu_device); + dma_declare_coherent_memory(&migor_ceu_device.dev, + ceu_dma_membase, ceu_dma_membase, + ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1, + DMA_MEMORY_EXCLUSIVE); + + platform_device_add(&migor_ceu_device); + return platform_add_devices(migor_devices, ARRAY_SIZE(migor_devices)); } arch_initcall(migor_devices_setup); @@ -665,10 +626,24 @@ static int migor_mode_pins(void) return MODE_PIN0 | MODE_PIN1 | MODE_PIN5; } +/* Reserve a portion of memory for CEU buffers */ +static void __init migor_mv_mem_reserve(void) +{ + phys_addr_t phys; + phys_addr_t size = CEU_BUFFER_MEMORY_SIZE; + + phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE); + memblock_free(phys, size); + memblock_remove(phys, size); + + ceu_dma_membase = phys; +} + /* * The Machine Vector */ static struct sh_machine_vector mv_migor __initmv = { .mv_name = "Migo-R", .mv_mode_pins = migor_mode_pins, + .mv_mem_reserve = migor_mv_mem_reserve, }; |