1 files changed, 496 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-omap2/io.c b/ANDROID_3.4.5/arch/arm/mach-omap2/io.c
new file mode 100644
index 00000000..065bd768
--- /dev/null
+++ b/ANDROID_3.4.5/arch/arm/mach-omap2/io.c
@@ -0,0 +1,496 @@
+/*
+ * 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/sram.h>
+#include <plat/sdrc.h>
+#include <plat/serial.h>
+#include <plat/omap-pm.h>
+#include <plat/omap_hwmod.h>
+#include <plat/multi.h>
+
+#include "iomap.h"
+#include "voltage.h"
+#include "powerdomain.h"
+#include "clockdomain.h"
+#include "common.h"
+#include "clock2xxx.h"
+#include "clock3xxx.h"
+#include "clock44xx.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_OMAPTI81XX
+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_OMAPAM33XX
+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	= OMAP44XX_GPMC_VIRT,
+		.pfn		= __phys_to_pfn(OMAP44XX_GPMC_PHYS),
+		.length		= OMAP44XX_GPMC_SIZE,
+		.type		= MT_DEVICE,
+	},
+	{
+		.virtual	= OMAP44XX_EMIF1_VIRT,
+		.pfn		= __phys_to_pfn(OMAP44XX_EMIF1_PHYS),
+		.length		= OMAP44XX_EMIF1_SIZE,
+		.type		= MT_DEVICE,
+	},
+	{
+		.virtual	= OMAP44XX_EMIF2_VIRT,
+		.pfn		= __phys_to_pfn(OMAP44XX_EMIF2_PHYS),
+		.length		= OMAP44XX_EMIF2_SIZE,
+		.type		= MT_DEVICE,
+	},
+	{
+		.virtual	= OMAP44XX_DMM_VIRT,
+		.pfn		= __phys_to_pfn(OMAP44XX_DMM_PHYS),
+		.length		= OMAP44XX_DMM_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,
+	},
+	{
+		.virtual	= L4_EMU_44XX_VIRT,
+		.pfn		= __phys_to_pfn(L4_EMU_44XX_PHYS),
+		.length		= L4_EMU_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_OMAP2420
+void __init omap242x_map_common_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_common_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 omap34xx_map_common_io(void)
+{
+	iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAPTI81XX
+void __init omapti81xx_map_common_io(void)
+{
+	iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAPAM33XX
+void __init omapam33xx_map_common_io(void)
+{
+	iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
+}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+void __init omap44xx_map_common_io(void)
+{
+	iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
+	omap_barriers_init();
+}
+#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);
+
+	/*
+	 * Set the default postsetup state for unusual modules (like
+	 * MPU WDT).
+	 *
+	 * The postsetup_state is not actually used until
+	 * omap_hwmod_late_init(), so boards that desire full watchdog
+	 * coverage of kernel initialization can reprogram the
+	 * postsetup_state between the calls to
+	 * omap2_init_common_infra() and omap_sdrc_init().
+	 *
+	 * XXX ideally we could detect whether the MPU WDT was currently
+	 * enabled here and make this conditional
+	 */
+	postsetup_state = _HWMOD_STATE_DISABLED;
+	omap_hwmod_for_each_by_class("wd_timer",
+				     _set_hwmod_postsetup_state,
+				     &postsetup_state);
+
+	omap_pm_if_early_init();
+}
+
+#ifdef CONFIG_SOC_OMAP2420
+void __init omap2420_init_early(void)
+{
+	omap2_set_globals_242x();
+	omap2xxx_check_revision();
+	omap_common_init_early();
+	omap2xxx_voltagedomains_init();
+	omap242x_powerdomains_init();
+	omap242x_clockdomains_init();
+	omap2420_hwmod_init();
+	omap_hwmod_init_postsetup();
+	omap2420_clk_init();
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAP2430
+void __init omap2430_init_early(void)
+{
+	omap2_set_globals_243x();
+	omap2xxx_check_revision();
+	omap_common_init_early();
+	omap2xxx_voltagedomains_init();
+	omap243x_powerdomains_init();
+	omap243x_clockdomains_init();
+	omap2430_hwmod_init();
+	omap_hwmod_init_postsetup();
+	omap2430_clk_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_3xxx();
+	omap3xxx_check_revision();
+	omap3xxx_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 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_ti81xx();
+	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();
+}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+void __init omap4430_init_early(void)
+{
+	omap2_set_globals_443x();
+	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();
+}
+#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();
+	}
+}