| /* |
| * linux/arch/arm/mach-omap2/io.c |
| * |
| * OMAP2 I/O mapping code |
| * |
| * Copyright (C) 2005 Nokia Corporation |
| * Copyright (C) 2007-2009 Texas Instruments |
| * |
| * Author: |
| * Juha Yrjola <juha.yrjola@nokia.com> |
| * Syed Khasim <x0khasim@ti.com> |
| * |
| * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/clk.h> |
| |
| #include <asm/tlb.h> |
| #include <asm/mach/map.h> |
| |
| #include <plat-omap/dma-omap.h> |
| |
| #include "../plat-omap/sram.h" |
| #include <plat/prcm.h> |
| |
| #include "omap_hwmod.h" |
| #include "soc.h" |
| #include "iomap.h" |
| #include "voltage.h" |
| #include "powerdomain.h" |
| #include "clockdomain.h" |
| #include "common.h" |
| #include "clock.h" |
| #include "clock2xxx.h" |
| #include "clock3xxx.h" |
| #include "clock44xx.h" |
| #include "omap-pm.h" |
| #include "sdrc.h" |
| #include "control.h" |
| #include "serial.h" |
| #include "cm2xxx.h" |
| #include "cm3xxx.h" |
| |
| /* |
| * The machine specific code may provide the extra mapping besides the |
| * default mapping provided here. |
| */ |
| |
| #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430) |
| static struct map_desc omap24xx_io_desc[] __initdata = { |
| { |
| .virtual = L3_24XX_VIRT, |
| .pfn = __phys_to_pfn(L3_24XX_PHYS), |
| .length = L3_24XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = L4_24XX_VIRT, |
| .pfn = __phys_to_pfn(L4_24XX_PHYS), |
| .length = L4_24XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| #ifdef CONFIG_SOC_OMAP2420 |
| static struct map_desc omap242x_io_desc[] __initdata = { |
| { |
| .virtual = DSP_MEM_2420_VIRT, |
| .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS), |
| .length = DSP_MEM_2420_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = DSP_IPI_2420_VIRT, |
| .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS), |
| .length = DSP_IPI_2420_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = DSP_MMU_2420_VIRT, |
| .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS), |
| .length = DSP_MMU_2420_SIZE, |
| .type = MT_DEVICE |
| }, |
| }; |
| |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP2430 |
| static struct map_desc omap243x_io_desc[] __initdata = { |
| { |
| .virtual = L4_WK_243X_VIRT, |
| .pfn = __phys_to_pfn(L4_WK_243X_PHYS), |
| .length = L4_WK_243X_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP243X_GPMC_VIRT, |
| .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), |
| .length = OMAP243X_GPMC_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP243X_SDRC_VIRT, |
| .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS), |
| .length = OMAP243X_SDRC_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP243X_SMS_VIRT, |
| .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS), |
| .length = OMAP243X_SMS_SIZE, |
| .type = MT_DEVICE |
| }, |
| }; |
| #endif |
| #endif |
| |
| #ifdef CONFIG_ARCH_OMAP3 |
| static struct map_desc omap34xx_io_desc[] __initdata = { |
| { |
| .virtual = L3_34XX_VIRT, |
| .pfn = __phys_to_pfn(L3_34XX_PHYS), |
| .length = L3_34XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = L4_34XX_VIRT, |
| .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| .length = L4_34XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP34XX_GPMC_VIRT, |
| .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS), |
| .length = OMAP34XX_GPMC_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP343X_SMS_VIRT, |
| .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS), |
| .length = OMAP343X_SMS_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = OMAP343X_SDRC_VIRT, |
| .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS), |
| .length = OMAP343X_SDRC_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = L4_PER_34XX_VIRT, |
| .pfn = __phys_to_pfn(L4_PER_34XX_PHYS), |
| .length = L4_PER_34XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = L4_EMU_34XX_VIRT, |
| .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS), |
| .length = L4_EMU_34XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| #if defined(CONFIG_DEBUG_LL) && \ |
| (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3)) |
| { |
| .virtual = ZOOM_UART_VIRT, |
| .pfn = __phys_to_pfn(ZOOM_UART_BASE), |
| .length = SZ_1M, |
| .type = MT_DEVICE |
| }, |
| #endif |
| }; |
| #endif |
| |
| #ifdef CONFIG_SOC_TI81XX |
| static struct map_desc omapti81xx_io_desc[] __initdata = { |
| { |
| .virtual = L4_34XX_VIRT, |
| .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| .length = L4_34XX_SIZE, |
| .type = MT_DEVICE |
| } |
| }; |
| #endif |
| |
| #ifdef CONFIG_SOC_AM33XX |
| static struct map_desc omapam33xx_io_desc[] __initdata = { |
| { |
| .virtual = L4_34XX_VIRT, |
| .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| .length = L4_34XX_SIZE, |
| .type = MT_DEVICE |
| }, |
| { |
| .virtual = L4_WK_AM33XX_VIRT, |
| .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS), |
| .length = L4_WK_AM33XX_SIZE, |
| .type = MT_DEVICE |
| } |
| }; |
| #endif |
| |
| #ifdef CONFIG_ARCH_OMAP4 |
| static struct map_desc omap44xx_io_desc[] __initdata = { |
| { |
| .virtual = L3_44XX_VIRT, |
| .pfn = __phys_to_pfn(L3_44XX_PHYS), |
| .length = L3_44XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| { |
| .virtual = L4_44XX_VIRT, |
| .pfn = __phys_to_pfn(L4_44XX_PHYS), |
| .length = L4_44XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| { |
| .virtual = L4_PER_44XX_VIRT, |
| .pfn = __phys_to_pfn(L4_PER_44XX_PHYS), |
| .length = L4_PER_44XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| #ifdef CONFIG_OMAP4_ERRATA_I688 |
| { |
| .virtual = OMAP4_SRAM_VA, |
| .pfn = __phys_to_pfn(OMAP4_SRAM_PA), |
| .length = PAGE_SIZE, |
| .type = MT_MEMORY_SO, |
| }, |
| #endif |
| |
| }; |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP5 |
| static struct map_desc omap54xx_io_desc[] __initdata = { |
| { |
| .virtual = L3_54XX_VIRT, |
| .pfn = __phys_to_pfn(L3_54XX_PHYS), |
| .length = L3_54XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| { |
| .virtual = L4_54XX_VIRT, |
| .pfn = __phys_to_pfn(L4_54XX_PHYS), |
| .length = L4_54XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| { |
| .virtual = L4_WK_54XX_VIRT, |
| .pfn = __phys_to_pfn(L4_WK_54XX_PHYS), |
| .length = L4_WK_54XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| { |
| .virtual = L4_PER_54XX_VIRT, |
| .pfn = __phys_to_pfn(L4_PER_54XX_PHYS), |
| .length = L4_PER_54XX_SIZE, |
| .type = MT_DEVICE, |
| }, |
| }; |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP2420 |
| void __init omap242x_map_io(void) |
| { |
| iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc)); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP2430 |
| void __init omap243x_map_io(void) |
| { |
| iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc)); |
| } |
| #endif |
| |
| #ifdef CONFIG_ARCH_OMAP3 |
| void __init omap3_map_io(void) |
| { |
| iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc)); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_TI81XX |
| void __init ti81xx_map_io(void) |
| { |
| iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc)); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_AM33XX |
| void __init am33xx_map_io(void) |
| { |
| iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc)); |
| } |
| #endif |
| |
| #ifdef CONFIG_ARCH_OMAP4 |
| void __init omap4_map_io(void) |
| { |
| iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); |
| omap_barriers_init(); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP5 |
| void __init omap5_map_io(void) |
| { |
| iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc)); |
| } |
| #endif |
| /* |
| * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters |
| * |
| * Sets the CORE DPLL3 M2 divider to the same value that it's at |
| * currently. This has the effect of setting the SDRC SDRAM AC timing |
| * registers to the values currently defined by the kernel. Currently |
| * only defined for OMAP3; will return 0 if called on OMAP2. Returns |
| * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2, |
| * or passes along the return value of clk_set_rate(). |
| */ |
| static int __init _omap2_init_reprogram_sdrc(void) |
| { |
| struct clk *dpll3_m2_ck; |
| int v = -EINVAL; |
| long rate; |
| |
| if (!cpu_is_omap34xx()) |
| return 0; |
| |
| dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); |
| if (IS_ERR(dpll3_m2_ck)) |
| return -EINVAL; |
| |
| rate = clk_get_rate(dpll3_m2_ck); |
| pr_info("Reprogramming SDRC clock to %ld Hz\n", rate); |
| v = clk_set_rate(dpll3_m2_ck, rate); |
| if (v) |
| pr_err("dpll3_m2_clk rate change failed: %d\n", v); |
| |
| clk_put(dpll3_m2_ck); |
| |
| return v; |
| } |
| |
| static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) |
| { |
| return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); |
| } |
| |
| static void __init omap_common_init_early(void) |
| { |
| omap_init_consistent_dma_size(); |
| } |
| |
| static void __init omap_hwmod_init_postsetup(void) |
| { |
| u8 postsetup_state; |
| |
| /* Set the default postsetup state for all hwmods */ |
| #ifdef CONFIG_PM_RUNTIME |
| postsetup_state = _HWMOD_STATE_IDLE; |
| #else |
| postsetup_state = _HWMOD_STATE_ENABLED; |
| #endif |
| omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state); |
| |
| omap_pm_if_early_init(); |
| } |
| |
| #ifdef CONFIG_SOC_OMAP2420 |
| void __init omap2420_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000)); |
| omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE), |
| OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE), |
| NULL); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), |
| NULL, NULL); |
| omap2xxx_check_revision(); |
| omap2xxx_cm_init(); |
| omap_common_init_early(); |
| omap2xxx_voltagedomains_init(); |
| omap242x_powerdomains_init(); |
| omap242x_clockdomains_init(); |
| omap2420_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| omap2420_clk_init(); |
| } |
| |
| void __init omap2420_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap2_pm_init(); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP2430 |
| void __init omap2430_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000)); |
| omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE), |
| OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE), |
| NULL); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), |
| NULL, NULL); |
| omap2xxx_check_revision(); |
| omap2xxx_cm_init(); |
| omap_common_init_early(); |
| omap2xxx_voltagedomains_init(); |
| omap243x_powerdomains_init(); |
| omap243x_clockdomains_init(); |
| omap2430_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| omap2430_clk_init(); |
| } |
| |
| void __init omap2430_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap2_pm_init(); |
| } |
| #endif |
| |
| /* |
| * Currently only board-omap3beagle.c should call this because of the |
| * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT. |
| */ |
| #ifdef CONFIG_ARCH_OMAP3 |
| void __init omap3_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000)); |
| omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE), |
| OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE), |
| NULL); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), |
| NULL, NULL); |
| omap3xxx_check_revision(); |
| omap3xxx_check_features(); |
| omap3xxx_cm_init(); |
| omap_common_init_early(); |
| omap3xxx_voltagedomains_init(); |
| omap3xxx_powerdomains_init(); |
| omap3xxx_clockdomains_init(); |
| omap3xxx_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| omap3xxx_clk_init(); |
| } |
| |
| void __init omap3430_init_early(void) |
| { |
| omap3_init_early(); |
| } |
| |
| void __init omap35xx_init_early(void) |
| { |
| omap3_init_early(); |
| } |
| |
| void __init omap3630_init_early(void) |
| { |
| omap3_init_early(); |
| } |
| |
| void __init am35xx_init_early(void) |
| { |
| omap3_init_early(); |
| } |
| |
| void __init ti81xx_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP343X_CLASS, |
| OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE), |
| NULL); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), |
| OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), |
| NULL, NULL); |
| omap3xxx_check_revision(); |
| ti81xx_check_features(); |
| omap_common_init_early(); |
| omap3xxx_voltagedomains_init(); |
| omap3xxx_powerdomains_init(); |
| omap3xxx_clockdomains_init(); |
| omap3xxx_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| omap3xxx_clk_init(); |
| } |
| |
| void __init omap3_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| |
| void __init omap3430_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| |
| void __init omap35xx_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| |
| void __init omap3630_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| |
| void __init am35xx_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| |
| void __init ti81xx_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap3_pm_init(); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_AM33XX |
| void __init am33xx_init_early(void) |
| { |
| omap2_set_globals_tap(AM335X_CLASS, |
| AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE)); |
| omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE), |
| NULL); |
| omap2_set_globals_prcm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), |
| AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), |
| NULL, NULL); |
| omap3xxx_check_revision(); |
| ti81xx_check_features(); |
| omap_common_init_early(); |
| am33xx_voltagedomains_init(); |
| am33xx_powerdomains_init(); |
| am33xx_clockdomains_init(); |
| am33xx_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| am33xx_clk_init(); |
| } |
| #endif |
| |
| #ifdef CONFIG_ARCH_OMAP4 |
| void __init omap4430_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP443X_CLASS, |
| OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE)); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE)); |
| omap4xxx_check_revision(); |
| omap4xxx_check_features(); |
| omap_common_init_early(); |
| omap44xx_voltagedomains_init(); |
| omap44xx_powerdomains_init(); |
| omap44xx_clockdomains_init(); |
| omap44xx_hwmod_init(); |
| omap_hwmod_init_postsetup(); |
| omap4xxx_clk_init(); |
| } |
| |
| void __init omap4430_init_late(void) |
| { |
| omap_mux_late_init(); |
| omap2_common_pm_late_init(); |
| omap4_pm_init(); |
| } |
| #endif |
| |
| #ifdef CONFIG_SOC_OMAP5 |
| void __init omap5_init_early(void) |
| { |
| omap2_set_globals_tap(OMAP54XX_CLASS, |
| OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE)); |
| omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE)); |
| omap2_set_globals_prcm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE), |
| OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE)); |
| omap5xxx_check_revision(); |
| omap_common_init_early(); |
| } |
| #endif |
| |
| void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, |
| struct omap_sdrc_params *sdrc_cs1) |
| { |
| omap_sram_init(); |
| |
| if (cpu_is_omap24xx() || omap3_has_sdrc()) { |
| omap2_sdrc_init(sdrc_cs0, sdrc_cs1); |
| _omap2_init_reprogram_sdrc(); |
| } |
| } |