[ARM] OMAP2 SDRC: separate common OMAP2/3 code from OMAP2xxx code

[linux-2.6-omap-h63xx.git] / arch / arm / mach-omap2 / sdrc2xxx.c

diff --git a/arch/arm/mach-omap2/sdrc2xxx.c b/arch/arm/mach-omap2/sdrc2xxx.c
index 3e38aa4ea45855dd39293007da7bdbd439ab5b16..3a47aba29031f57321836fc2c3e910fe6180c68b 100644 (file)
--- a/arch/arm/mach-omap2/sdrc2xxx.c
+++ b/arch/arm/mach-omap2/sdrc2xxx.c
@@ -3,11 +3,12 @@
  *
  * SDRAM timing related functions for OMAP2xxx
  *
- * Copyright (C) 2005 Texas Instruments Inc.
- * Richard Woodruff <r-woodruff2@ti.com>
+ * Copyright (C) 2005, 2008 Texas Instruments Inc.
+ * Copyright (C) 2005, 2008 Nokia Corporation
  *
- * Copyright (C) 2005 Nokia Corporation
  * Tony Lindgren <tony@atomide.com>
+ * Paul Walmsley
+ * Richard Woodruff <r-woodruff2@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
@@ -39,23 +40,20 @@
 #define M_LOCK         1
 
 
-void __iomem *omap2_sdrc_base;
-void __iomem *omap2_sms_base;
-
 static struct memory_timings mem_timings;
 static u32 curr_perf_level = CORE_CLK_SRC_DPLL_X2;
 
-u32 omap2_memory_get_slow_dll_ctrl(void)
+static u32 omap2xxx_sdrc_get_slow_dll_ctrl(void)
 {
        return mem_timings.slow_dll_ctrl;
 }
 
-u32 omap2_memory_get_fast_dll_ctrl(void)
+static u32 omap2xxx_sdrc_get_fast_dll_ctrl(void)
 {
        return mem_timings.fast_dll_ctrl;
 }
 
-u32 omap2_memory_get_type(void)
+static u32 omap2xxx_sdrc_get_type(void)
 {
        return mem_timings.m_type;
 }
@@ -64,7 +62,7 @@ u32 omap2_memory_get_type(void)
  * Check the DLL lock state, and return tue if running in unlock mode.
  * This is needed to compensate for the shifted DLL value in unlock mode.
  */
-u32 omap2_dll_force_needed(void)
+u32 omap2xxx_sdrc_dll_is_unlocked(void)
 {
        /* dlla and dllb are a set */
        u32 dll_state = sdrc_read_reg(SDRC_DLLA_CTRL);
@@ -79,8 +77,10 @@ u32 omap2_dll_force_needed(void)
  * 'level' is the value to store to CM_CLKSEL2_PLL.CORE_CLK_SRC.
  * Practical values are CORE_CLK_SRC_DPLL (for CORE_CLK = DPLL_CLK) or
  * CORE_CLK_SRC_DPLL_X2 (for CORE_CLK = * DPLL_CLK * 2)
+ *
+ * Used by the clock framework during CORE DPLL changes
  */
-u32 omap2_reprogram_sdrc(u32 level, u32 force)
+u32 omap2xxx_sdrc_reprogram(u32 level, u32 force)
 {
        u32 dll_ctrl, m_type;
        u32 prev = curr_perf_level;
@@ -90,13 +90,13 @@ u32 omap2_reprogram_sdrc(u32 level, u32 force)
                return prev;
 
        if (level == CORE_CLK_SRC_DPLL)
-               dll_ctrl = omap2_memory_get_slow_dll_ctrl();
+               dll_ctrl = omap2xxx_sdrc_get_slow_dll_ctrl();
        else if (level == CORE_CLK_SRC_DPLL_X2)
-               dll_ctrl = omap2_memory_get_fast_dll_ctrl();
+               dll_ctrl = omap2xxx_sdrc_get_fast_dll_ctrl();
        else
                return prev;
 
-       m_type = omap2_memory_get_type();
+       m_type = omap2xxx_sdrc_get_type();
 
        local_irq_save(flags);
        __raw_writel(0xffff, OMAP24XX_PRCM_VOLTSETUP);
@@ -107,18 +107,8 @@ u32 omap2_reprogram_sdrc(u32 level, u32 force)
        return prev;
 }
 
-#if !defined(CONFIG_ARCH_OMAP2)
-void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
-                               u32 base_cs, u32 force_unlock)
-{
-}
-void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
-                                     u32 mem_type)
-{
-}
-#endif
-
-void omap2_init_memory_params(u32 force_lock_to_unlock_mode)
+/* Used by the clock framework during CORE DPLL changes */
+void omap2xxx_sdrc_init_params(u32 force_lock_to_unlock_mode)
 {
        unsigned long dll_cnt;
        u32 fast_dll = 0;
@@ -171,28 +161,3 @@ void omap2_init_memory_params(u32 force_lock_to_unlock_mode)
        /* 90 degree phase for anything below 133Mhz + disable DLL filter */
        mem_timings.slow_dll_ctrl |= ((1 << 1) | (3 << 8));
 }
-
-void __init omap2_set_globals_memory(struct omap_globals *omap2_globals)
-{
-       omap2_sdrc_base = omap2_globals->sdrc;
-       omap2_sms_base = omap2_globals->sms;
-}
-
-/* turn on smart idle modes for SDRAM scheduler and controller */
-void __init omap2_init_memory(void)
-{
-       u32 l;
-
-       if (!cpu_is_omap2420())
-               return;
-
-       l = sms_read_reg(SMS_SYSCONFIG);
-       l &= ~(0x3 << 3);
-       l |= (0x2 << 3);
-       sms_write_reg(l, SMS_SYSCONFIG);
-
-       l = sdrc_read_reg(SDRC_SYSCONFIG);
-       l &= ~(0x3 << 3);
-       l |= (0x2 << 3);
-       sdrc_write_reg(l, SDRC_SYSCONFIG);
-}