diff options
Diffstat (limited to 'drivers/platform/sprd/iomap.c')
| -rw-r--r-- | drivers/platform/sprd/iomap.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/platform/sprd/iomap.c b/drivers/platform/sprd/iomap.c new file mode 100644 index 00000000..7a912fea --- /dev/null +++ b/drivers/platform/sprd/iomap.c @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2014 Spreadtrum Communications Inc. + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/vmalloc.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <asm/io.h> +#include <soc/sprd/sci_glb_regs.h> + +struct iotable_sprd io_addr_sprd; +EXPORT_SYMBOL_GPL(io_addr_sprd); + +#define ADD_SPRD_DEVICE_BY_COMPAT(compat, id) \ +do { \ + np = of_find_compatible_node(NULL, NULL, compat);\ + if (of_can_translate_address(np)) { \ + of_address_to_resource(np, 0, &res); \ + io_addr_sprd.id.paddr = res.start; \ + io_addr_sprd.id.length = \ + resource_size(&res); \ + io_addr_sprd.id.vaddr = base + res.start;\ + pr_debug("sprd io map: phys=%16lx virt=%16lx size=%16lx\n", \ + io_addr_sprd.id.paddr, io_addr_sprd.id.vaddr, io_addr_sprd.id.length);\ + } \ +} while (0) + +#define ADD_SPRD_DEVICE_BY_NAME(name, id) \ +do { \ + np = of_find_node_by_name(NULL, name); \ + if (of_can_translate_address(np)) { \ + of_address_to_resource(np, 0, &res); \ + io_addr_sprd.id.paddr = res.start; \ + io_addr_sprd.id.length = \ + resource_size(&res); \ + io_addr_sprd.id.vaddr = base + res.start;\ + pr_debug("sprd io map: phys=%16lx virt=%16lx size=%16lx\n", \ + io_addr_sprd.id.paddr, io_addr_sprd.id.vaddr, io_addr_sprd.id.length);\ + } \ +} while (0) + +static int sprd_create_iomap(void) +{ + struct device_node *np; + struct resource res; + unsigned long base; + + base = (unsigned long) ioremap_nocache(0, SZ_2G); + if (!base) + panic("%s: unable to alloc such memory!", __func__); + io_addr_sprd.base = base; + pr_debug("sprd io map base address: %016x\n", base); + + ADD_SPRD_DEVICE_BY_COMPAT("sprd,ahb", AHB); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,apbckg", APBCKG); + //ADD_SPRD_DEVICE_BY_COMPAT("sprd,hwlock0", HWLOCK0); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,pub_apb", PUB); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,aon_apb", AONAPB); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,pmu_apb", PMU); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,mm_ahb", MMAHB); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,mm_clk", MMCKG); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,ap_apb", APBREG); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,dma0", DMA0); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,gpu_apb", GPUAPB); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,ap_ckg", APCKG); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,aon_dma", AONDMA); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,pwm", PWM); + ADD_SPRD_DEVICE_BY_NAME("hwspinlock0", HWSPINLOCK0); + ADD_SPRD_DEVICE_BY_NAME("hwspinlock1", HWSPINLOCK1); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,intc2", INTC2); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,aonckg", AONCKG); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,core", CORE); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,gpuckg", GPUCKG); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,int", INT); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,intc0", INTC0); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,intc1", INTC1); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,intc3", INTC3); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uidefuse", UIDEFUSE); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,isp", ISP); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,csi2", CSI2); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,d-eic-gpio", EIC); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,ipi", IPI); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,dcam", DCAM); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,syscnt", SYSCNT); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,pin", PIN); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,d-gpio-gpio", GPIO); +#if defined(CONFIG_ARCH_SCX35LT8) + ADD_SPRD_DEVICE_BY_COMPAT("sprd,codecahb", CODECAHB); +#endif + ADD_SPRD_DEVICE_BY_COMPAT("sprd,lpddr2", LPDDR2); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uart0", UART0); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uart1", UART1); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uart2", UART2); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uart3", UART3); + ADD_SPRD_DEVICE_BY_COMPAT("sprd,uart4", UART4); + return 0; +} + +early_initcall(sprd_create_iomap); |