diff options
Diffstat (limited to 'arch/sh/boards/mach-kfr2r09/setup.c')
| -rw-r--r-- | arch/sh/boards/mach-kfr2r09/setup.c | 217 |
1 files changed, 103 insertions, 114 deletions
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c index 6af7777332fc..e59c577ed871 100644 --- a/arch/sh/boards/mach-kfr2r09/setup.c +++ b/arch/sh/boards/mach-kfr2r09/setup.c @@ -1,41 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0 /* * KFR2R09 board support code * * Copyright (C) 2009 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/init.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/mmc/host.h> -#include <linux/mfd/tmio.h> -#include <linux/mtd/physmap.h> -#include <linux/mtd/onenand.h> + +#include <asm/clock.h> +#include <asm/io.h> +#include <asm/machvec.h> +#include <asm/suspend.h> + +#include <cpu/sh7724.h> + +#include <linux/clkdev.h> #include <linux/delay.h> -#include <linux/clk.h> +#include <linux/dma-mapping.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> +#include <linux/i2c.h> +#include <linux/init.h> #include <linux/input.h> #include <linux/input/sh_keysc.h> -#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/memblock.h> +#include <linux/mfd/tmio.h> +#include <linux/mmc/host.h> +#include <linux/mtd/onenand.h> +#include <linux/mtd/physmap.h> #include <linux/platform_data/lv5207lp.h> +#include <linux/platform_device.h> #include <linux/regulator/fixed.h> #include <linux/regulator/machine.h> +#include <linux/sh_intc.h> #include <linux/usb/r8a66597.h> #include <linux/videodev2.h> -#include <linux/sh_intc.h> + +#include <mach/kfr2r09.h> + +#include <media/drv-intf/renesas-ceu.h> #include <media/i2c/rj54n1cb0c.h> -#include <media/soc_camera.h> -#include <media/drv-intf/sh_mobile_ceu.h> + #include <video/sh_mobile_lcdc.h> -#include <asm/suspend.h> -#include <asm/clock.h> -#include <asm/machvec.h> -#include <asm/io.h> -#include <cpu/sh7724.h> -#include <mach/kfr2r09.h> + +#define CEU_BUFFER_MEMORY_SIZE (4 << 20) +static phys_addr_t ceu_dma_membase; + +/* set VIO_CKO clock to 25MHz */ +#define CEU_MCLK_FREQ 25000000 +#define DRVCRB 0xA405018C static struct mtd_partition kfr2r09_nor_flash_partitions[] = { @@ -230,8 +242,17 @@ static struct platform_device kfr2r09_usb0_gadget_device = { .resource = kfr2r09_usb0_gadget_resources, }; -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 = 1, + .subdevs = { + { /* [0] = rj54n1cb0c */ + .flags = 0, + .bus_width = 8, + .bus_shift = 0, + .i2c_adapter_id = 1, + .i2c_address = 0x50, + }, + }, }; static struct resource kfr2r09_ceu_resources[] = { @@ -246,109 +267,35 @@ static struct resource kfr2r09_ceu_resources[] = { .end = evt2irq(0x880), .flags = IORESOURCE_IRQ, }, - [2] = { - /* place holder for contiguous memory */ - }, }; static struct platform_device kfr2r09_ceu_device = { - .name = "sh_mobile_ceu", + .name = "renesas-ceu", .id = 0, /* "ceu0" clock */ .num_resources = ARRAY_SIZE(kfr2r09_ceu_resources), .resource = kfr2r09_ceu_resources, .dev = { - .platform_data = &sh_mobile_ceu_info, + .platform_data = &ceu_pdata, }, }; -static struct i2c_board_info kfr2r09_i2c_camera = { - I2C_BOARD_INFO("rj54n1cb0c", 0x50), -}; - -static struct clk *camera_clk; - -/* set VIO_CKO clock to 25MHz */ -#define CEU_MCLK_FREQ 25000000 - -#define DRVCRB 0xA405018C -static int camera_power(struct device *dev, int mode) -{ - int ret; - - if (mode) { - long rate; - - camera_clk = clk_get(NULL, "video_clk"); - if (IS_ERR(camera_clk)) - return PTR_ERR(camera_clk); - - rate = clk_round_rate(camera_clk, CEU_MCLK_FREQ); - ret = clk_set_rate(camera_clk, rate); - if (ret < 0) - goto eclkrate; - - /* set DRVCRB - * - * use 1.8 V for VccQ_VIO - * use 2.85V for VccQ_SR - */ - __raw_writew((__raw_readw(DRVCRB) & ~0x0003) | 0x0001, DRVCRB); - - /* reset clear */ - ret = gpio_request(GPIO_PTB4, NULL); - if (ret < 0) - goto eptb4; - ret = gpio_request(GPIO_PTB7, NULL); - if (ret < 0) - goto eptb7; - - ret = gpio_direction_output(GPIO_PTB4, 1); - if (!ret) - ret = gpio_direction_output(GPIO_PTB7, 1); - if (ret < 0) - goto egpioout; - msleep(1); - - ret = clk_enable(camera_clk); /* start VIO_CKO */ - if (ret < 0) - goto eclkon; - - return 0; - } - - ret = 0; - - clk_disable(camera_clk); -eclkon: - gpio_set_value(GPIO_PTB7, 0); -egpioout: - gpio_set_value(GPIO_PTB4, 0); - gpio_free(GPIO_PTB7); -eptb7: - gpio_free(GPIO_PTB4); -eptb4: -eclkrate: - clk_put(camera_clk); - return ret; -} - static struct rj54n1_pdata rj54n1_priv = { .mclk_freq = CEU_MCLK_FREQ, .ioctl_high = false, }; -static struct soc_camera_link rj54n1_link = { - .power = camera_power, - .board_info = &kfr2r09_i2c_camera, - .i2c_adapter_id = 1, - .priv = &rj54n1_priv, +static struct i2c_board_info kfr2r09_i2c_camera = { + I2C_BOARD_INFO("rj54n1cb0c", 0x50), + .platform_data = &rj54n1_priv, }; -static struct platform_device kfr2r09_camera = { - .name = "soc-camera-pdrv", - .id = 0, - .dev = { - .platform_data = &rj54n1_link, +static struct gpiod_lookup_table rj54n1_gpios = { + .dev_id = "1-0050", + .table = { + GPIO_LOOKUP("sh7724_pfc", GPIO_PTB4, "poweron", + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("sh7724_pfc", GPIO_PTB7, "enable", + GPIO_ACTIVE_HIGH), }, }; @@ -393,8 +340,6 @@ static struct platform_device *kfr2r09_devices[] __initdata = { &kfr2r09_nand_flash_device, &kfr2r09_sh_keysc_device, &kfr2r09_sh_lcdc_device, - &kfr2r09_ceu_device, - &kfr2r09_camera, &kfr2r09_sh_sdhi0_device, }; @@ -533,6 +478,8 @@ extern char kfr2r09_sdram_leave_end; static int __init kfr2r09_devices_setup(void) { + static struct clk *camera_clk; + /* register board specific self-refresh code */ sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF | SUSP_SH_RSTANDBY, @@ -622,8 +569,6 @@ static int __init kfr2r09_devices_setup(void) gpio_request(GPIO_FN_VIO0_D1, NULL); gpio_request(GPIO_FN_VIO0_D0, NULL); - platform_resource_setup_memory(&kfr2r09_ceu_device, "ceu", 4 << 20); - /* SDHI0 connected to yc304 */ gpio_request(GPIO_FN_SDHI0CD, NULL); gpio_request(GPIO_FN_SDHI0D3, NULL); @@ -635,6 +580,36 @@ static int __init kfr2r09_devices_setup(void) i2c_register_board_info(0, &kfr2r09_backlight_board_info, 1); + /* Set camera clock frequency and register and alias for rj54n1. */ + camera_clk = clk_get(NULL, "video_clk"); + if (!IS_ERR(camera_clk)) { + clk_set_rate(camera_clk, + clk_round_rate(camera_clk, CEU_MCLK_FREQ)); + clk_put(camera_clk); + } + clk_add_alias(NULL, "1-0050", "video_clk", NULL); + + /* set DRVCRB + * + * use 1.8 V for VccQ_VIO + * use 2.85V for VccQ_SR + */ + __raw_writew((__raw_readw(DRVCRB) & ~0x0003) | 0x0001, DRVCRB); + + gpiod_add_lookup_table(&rj54n1_gpios); + + i2c_register_board_info(1, &kfr2r09_i2c_camera, 1); + + /* Initialize CEU platform device separately to map memory first */ + device_initialize(&kfr2r09_ceu_device.dev); + arch_setup_pdev_archdata(&kfr2r09_ceu_device); + dma_declare_coherent_memory(&kfr2r09_ceu_device.dev, + ceu_dma_membase, ceu_dma_membase, + ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1, + DMA_MEMORY_EXCLUSIVE); + + platform_device_add(&kfr2r09_ceu_device); + return platform_add_devices(kfr2r09_devices, ARRAY_SIZE(kfr2r09_devices)); } @@ -651,10 +626,24 @@ static int kfr2r09_mode_pins(void) return MODE_PIN0 | MODE_PIN1 | MODE_PIN5 | MODE_PIN8; } +/* Reserve a portion of memory for CEU buffers */ +static void __init kfr2r09_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_kfr2r09 __initmv = { .mv_name = "kfr2r09", .mv_mode_pins = kfr2r09_mode_pins, + .mv_mem_reserve = kfr2r09_mv_mem_reserve, }; |