448 строки
10 KiB
C
448 строки
10 KiB
C
/*
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* linux/arch/arm/mach-omap2/devices.c
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*
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* OMAP2 platform device setup/initialization
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/gpio.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <linux/of.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_data/mailbox-omap.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <linux/omap-dma.h>
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#include "iomap.h"
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#include "omap_hwmod.h"
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#include "omap_device.h"
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#include "soc.h"
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#include "common.h"
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#include "mux.h"
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#include "control.h"
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#include "devices.h"
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#include "display.h"
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#define L3_MODULES_MAX_LEN 12
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#define L3_MODULES 3
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static int __init omap3_l3_init(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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char oh_name[L3_MODULES_MAX_LEN];
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/*
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* To avoid code running on other OMAPs in
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* multi-omap builds
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*/
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if (!(cpu_is_omap34xx()))
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return -ENODEV;
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snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
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oh = omap_hwmod_lookup(oh_name);
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if (!oh)
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pr_err("could not look up %s\n", oh_name);
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pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
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WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
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return PTR_RET(pdev);
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}
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omap_postcore_initcall(omap3_l3_init);
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static int __init omap4_l3_init(void)
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{
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int i;
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struct omap_hwmod *oh[3];
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struct platform_device *pdev;
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char oh_name[L3_MODULES_MAX_LEN];
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/* If dtb is there, the devices will be created dynamically */
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if (of_have_populated_dt())
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return -ENODEV;
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/*
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* To avoid code running on other OMAPs in
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* multi-omap builds
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*/
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if (!cpu_is_omap44xx() && !soc_is_omap54xx())
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return -ENODEV;
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for (i = 0; i < L3_MODULES; i++) {
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snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1);
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oh[i] = omap_hwmod_lookup(oh_name);
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if (!(oh[i]))
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pr_err("could not look up %s\n", oh_name);
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}
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pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL, 0);
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WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
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return PTR_RET(pdev);
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}
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omap_postcore_initcall(omap4_l3_init);
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#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
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static struct resource omap2cam_resources[] = {
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{
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.start = OMAP24XX_CAMERA_BASE,
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.end = OMAP24XX_CAMERA_BASE + 0xfff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = 24 + OMAP_INTC_START,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device omap2cam_device = {
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.name = "omap24xxcam",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap2cam_resources),
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.resource = omap2cam_resources,
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};
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#endif
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#if defined(CONFIG_IOMMU_API)
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#include <linux/platform_data/iommu-omap.h>
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static struct resource omap3isp_resources[] = {
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{
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.start = OMAP3430_ISP_BASE,
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.end = OMAP3430_ISP_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CCP2_BASE,
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.end = OMAP3430_ISP_CCP2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CCDC_BASE,
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.end = OMAP3430_ISP_CCDC_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_HIST_BASE,
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.end = OMAP3430_ISP_HIST_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_H3A_BASE,
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.end = OMAP3430_ISP_H3A_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_PREV_BASE,
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.end = OMAP3430_ISP_PREV_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_RESZ_BASE,
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.end = OMAP3430_ISP_RESZ_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_SBL_BASE,
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.end = OMAP3430_ISP_SBL_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CSI2A_REGS1_BASE,
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.end = OMAP3430_ISP_CSI2A_REGS1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CSIPHY2_BASE,
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.end = OMAP3430_ISP_CSIPHY2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2A_REGS2_BASE,
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.end = OMAP3630_ISP_CSI2A_REGS2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2C_REGS1_BASE,
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.end = OMAP3630_ISP_CSI2C_REGS1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSIPHY1_BASE,
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.end = OMAP3630_ISP_CSIPHY1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2C_REGS2_BASE,
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.end = OMAP3630_ISP_CSI2C_REGS2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE,
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.end = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE + 3,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL,
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.end = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL + 3,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = 24 + OMAP_INTC_START,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device omap3isp_device = {
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.name = "omap3isp",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap3isp_resources),
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.resource = omap3isp_resources,
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};
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static struct omap_iommu_arch_data omap3_isp_iommu = {
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.name = "mmu_isp",
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};
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int omap3_init_camera(struct isp_platform_data *pdata)
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{
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if (of_have_populated_dt())
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omap3_isp_iommu.name = "480bd400.mmu";
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omap3isp_device.dev.platform_data = pdata;
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omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
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return platform_device_register(&omap3isp_device);
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}
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#else /* !CONFIG_IOMMU_API */
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int omap3_init_camera(struct isp_platform_data *pdata)
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{
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return 0;
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}
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#endif
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static inline void omap_init_camera(void)
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{
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#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
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if (cpu_is_omap24xx())
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platform_device_register(&omap2cam_device);
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#endif
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}
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#if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
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static inline void __init omap_init_mbox(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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struct omap_mbox_pdata *pdata;
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oh = omap_hwmod_lookup("mailbox");
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if (!oh) {
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pr_err("%s: unable to find hwmod\n", __func__);
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return;
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}
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if (!oh->dev_attr) {
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pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
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return;
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}
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pdata = (struct omap_mbox_pdata *)oh->dev_attr;
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pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
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WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
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__func__, PTR_ERR(pdev));
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}
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#else
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static inline void omap_init_mbox(void) { }
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#endif /* CONFIG_OMAP2PLUS_MBOX */
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static inline void omap_init_sti(void) {}
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#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
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static struct platform_device omap_pcm = {
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.name = "omap-pcm-audio",
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.id = -1,
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};
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static void omap_init_audio(void)
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{
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platform_device_register(&omap_pcm);
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}
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#else
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static inline void omap_init_audio(void) {}
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#endif
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#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
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#include <linux/platform_data/spi-omap2-mcspi.h>
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static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
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{
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struct platform_device *pdev;
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char *name = "omap2_mcspi";
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struct omap2_mcspi_platform_config *pdata;
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static int spi_num;
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struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
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pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
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if (!pdata) {
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pr_err("Memory allocation for McSPI device failed\n");
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return -ENOMEM;
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}
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pdata->num_cs = mcspi_attrib->num_chipselect;
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switch (oh->class->rev) {
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case OMAP2_MCSPI_REV:
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case OMAP3_MCSPI_REV:
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pdata->regs_offset = 0;
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break;
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case OMAP4_MCSPI_REV:
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pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
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break;
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default:
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pr_err("Invalid McSPI Revision value\n");
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kfree(pdata);
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return -EINVAL;
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}
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spi_num++;
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pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
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WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
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name, oh->name);
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kfree(pdata);
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return 0;
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}
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static void omap_init_mcspi(void)
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{
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omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
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}
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#else
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static inline void omap_init_mcspi(void) {}
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#endif
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/**
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* omap_init_rng - bind the RNG hwmod to the RNG omap_device
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*
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* Bind the RNG hwmod to the RNG omap_device. No return value.
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*/
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static void omap_init_rng(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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oh = omap_hwmod_lookup("rng");
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if (!oh)
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return;
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pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
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WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
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}
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static void __init omap_init_sham(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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oh = omap_hwmod_lookup("sham");
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if (!oh)
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return;
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pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
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WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
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}
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static void __init omap_init_aes(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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oh = omap_hwmod_lookup("aes");
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if (!oh)
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return;
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pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
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WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
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}
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/*-------------------------------------------------------------------------*/
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#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
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defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
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#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
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static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
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};
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#else
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static struct resource omap_vout_resource[2] = {
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};
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#endif
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static struct platform_device omap_vout_device = {
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.name = "omap_vout",
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.num_resources = ARRAY_SIZE(omap_vout_resource),
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.resource = &omap_vout_resource[0],
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.id = -1,
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};
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int __init omap_init_vout(void)
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{
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return platform_device_register(&omap_vout_device);
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}
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#else
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int __init omap_init_vout(void) { return 0; }
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#endif
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/*-------------------------------------------------------------------------*/
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static int __init omap2_init_devices(void)
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{
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/* Enable dummy states for those platforms without pinctrl support */
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if (!of_have_populated_dt())
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pinctrl_provide_dummies();
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/*
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* please keep these calls, and their implementations above,
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* in alphabetical order so they're easier to sort through.
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*/
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omap_init_audio();
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omap_init_camera();
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/* If dtb is there, the devices will be created dynamically */
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if (!of_have_populated_dt()) {
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omap_init_mbox();
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omap_init_mcspi();
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omap_init_sham();
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omap_init_aes();
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omap_init_rng();
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}
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omap_init_sti();
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return 0;
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}
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omap_arch_initcall(omap2_init_devices);
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