* OMAP2 I/O mapping code
*
* Copyright (C) 2005 Nokia Corporation
- * Author: Juha Yrjölä <juha.yrjola@nokia.com>
+ * 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/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/omapfb.h>
+
+#include <asm/tlb.h>
#include <asm/mach/map.h>
-#include <asm/io.h>
-#include <asm/arch/mux.h>
-extern void omap_sram_init(void);
-extern int omap2_clk_init(void);
-extern void omap2_check_revision(void);
+#include <plat/mux.h>
+#include <plat/sram.h>
+#include <plat/sdrc.h>
+#include <plat/gpmc.h>
+#include <plat/serial.h>
+#include <plat/vram.h>
+
+#include "clock.h"
+
+#include <plat/omap-pm.h>
+#include <plat/powerdomain.h>
+#include "powerdomains.h"
+
+#include <plat/clockdomain.h>
+#include "clockdomains.h"
+#include <plat/omap_hwmod.h>
+#include "omap_hwmod_2420.h"
+#include "omap_hwmod_2430.h"
+#include "omap_hwmod_34xx.h"
/*
* The machine specific code may provide the extra mapping besides the
* default mapping provided here.
*/
-static struct map_desc omap2_io_desc[] __initdata = {
+
+#ifdef CONFIG_ARCH_OMAP24XX
+static struct map_desc omap24xx_io_desc[] __initdata = {
{
.virtual = L3_24XX_VIRT,
.pfn = __phys_to_pfn(L3_24XX_PHYS),
.pfn = __phys_to_pfn(L4_24XX_PHYS),
.length = L4_24XX_SIZE,
.type = MT_DEVICE
- }
+ },
+};
+
+#ifdef CONFIG_ARCH_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_ARCH_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
-void __init omap_map_common_io(void)
+#ifdef CONFIG_ARCH_OMAP34XX
+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 = L4_WK_34XX_VIRT,
+ .pfn = __phys_to_pfn(L4_WK_34XX_PHYS),
+ .length = L4_WK_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
+ },
+};
+#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_WK_44XX_VIRT,
+ .pfn = __phys_to_pfn(L4_WK_44XX_PHYS),
+ .length = L4_WK_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,
+ },
+};
+#endif
+
+void __init omap2_map_common_io(void)
{
- iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
+#if defined(CONFIG_ARCH_OMAP2420)
+ iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
+ iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
+#endif
+
+#if defined(CONFIG_ARCH_OMAP2430)
+ iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
+ iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
+#endif
+
+#if defined(CONFIG_ARCH_OMAP34XX)
+ iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
+#endif
+
+#if defined(CONFIG_ARCH_OMAP4)
+ iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
+#endif
+ /* Normally devicemaps_init() would flush caches and tlb after
+ * mdesc->map_io(), but we must also do it here because of the CPU
+ * revision check below.
+ */
+ local_flush_tlb_all();
+ flush_cache_all();
+
omap2_check_revision();
omap_sram_init();
+ omapfb_reserve_sdram();
+ omap_vram_reserve_sdram();
+}
+
+/*
+ * 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 (!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;
+}
+
+void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
+ struct omap_sdrc_params *sdrc_cs1)
+{
+ struct omap_hwmod **hwmods = NULL;
+
+ if (cpu_is_omap2420())
+ hwmods = omap2420_hwmods;
+ else if (cpu_is_omap2430())
+ hwmods = omap2430_hwmods;
+ else if (cpu_is_omap34xx())
+ hwmods = omap34xx_hwmods;
+
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
+ /* The OPP tables have to be registered before a clk init */
+ omap_hwmod_init(hwmods);
omap2_mux_init();
+ omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps);
+ pwrdm_init(powerdomains_omap);
+ clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
+#endif
omap2_clk_init();
+ omap_serial_early_init();
+#ifndef CONFIG_ARCH_OMAP4
+ omap_hwmod_late_init();
+ omap_pm_if_init();
+ omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
+ _omap2_init_reprogram_sdrc();
+#endif
+ gpmc_init();
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff