Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (214 commits)
  omap2: Initialize Menelaus and MMC for N8X0
  AM3517 EVM: correct typo - tca6416 mispelt as tca6516
  AM3517 EVM: Enable I2C support
  AM35x: Enable OMAP_MUX in defconfig
  AM35x: Add missing GPIO mux config for EHCI port
  Zoom3: Defconfig update
  omap: i2c: Fix muxing for command line enabled bus
  OMAP4: clock: Remove clock hacks from timer-gp.c
  OMAP4: clock: Add dummy clock nodes for interface clocks
  OMAP4: clock: Rename leaf clock nodes to end with a _ick or _fck
  OMAP2+ clock: revise omap2_clk_{disable,enable}()
  OMAP2/3 clock: combine OMAP2 & 3 boot-time MPU rate change code
  OMAP clockdomain: if no autodeps exist, don't try to add or remove them
  OMAP hwmod: add hwmod class support
  OMAP hwmod: convert header files with static allocations into C files
  OMAP hwmod: convert hwmod to use hardware clock names rather than clkdev dev+con
  OMAP clock: add omap_clk_get_by_name() for use by OMAP hwmod core code
  OMAP3: clock: add capability to change rate of dpll4_m5_ck_3630
  OMAP4 clock: drop the ALWAYS_ENABLED clock flag
  OMAP clock: drop RATE_FIXED clock flag
  ...

1 files changed, 75 insertions, 39 deletions

diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index cf466ea1dff..81872aacb80 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -11,6 +11,7 @@
  * Rajendra Nayak <rnayak@ti.com>
  *
  * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
+ * Upgraded with OMAP4 support by Abhijit Pagare <abhijitpagare@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
@@ -28,6 +29,7 @@
 #include <plat/control.h>
 
 #include "clock.h"
+#include "clock2xxx.h"
 #include "cm.h"
 #include "prm.h"
 #include "prm-regbits-24xx.h"
@@ -121,19 +123,25 @@ struct omap3_prcm_regs prcm_context;
 u32 omap_prcm_get_reset_sources(void)
 {
 	/* XXX This presumably needs modification for 34XX */
-	return prm_read_mod_reg(WKUP_MOD, RM_RSTST) & 0x7f;
+	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+		return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
+	if (cpu_is_omap44xx())
+		return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
+
+	return 0;
 }
 EXPORT_SYMBOL(omap_prcm_get_reset_sources);
 
 /* Resets clock rates and reboots the system. Only called from system.h */
 void omap_prcm_arch_reset(char mode)
 {
-	s16 prcm_offs;
-	omap2_clk_prepare_for_reboot();
+	s16 prcm_offs = 0;
+
+	if (cpu_is_omap24xx()) {
+		omap2xxx_clk_prepare_for_reboot();
 
-	if (cpu_is_omap24xx())
 		prcm_offs = WKUP_MOD;
-	else if (cpu_is_omap34xx()) {
+	} else if (cpu_is_omap34xx()) {
 		u32 l;
 
 		prcm_offs = OMAP3430_GR_MOD;
@@ -144,10 +152,17 @@ void omap_prcm_arch_reset(char mode)
 		 * cf. OMAP34xx TRM, Initialization / Software Booting
 		 * Configuration. */
 		omap_writel(l, OMAP343X_SCRATCHPAD + 4);
-	} else
+	} else if (cpu_is_omap44xx())
+		prcm_offs = OMAP4430_PRM_DEVICE_MOD;
+	else
 		WARN_ON(1);
 
-	prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
+	if (cpu_is_omap24xx() | cpu_is_omap34xx())
+		prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
+						 OMAP2_RM_RSTCTRL);
+	if (cpu_is_omap44xx())
+		prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
+						 OMAP4_RM_RSTCTRL);
 }
 
 static inline u32 __omap_prcm_read(void __iomem *base, s16 module, u16 reg)
@@ -188,6 +203,18 @@ u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
 	return v;
 }
 
+/* Read a PRM register, AND it, and shift the result down to bit 0 */
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
+{
+	u32 v;
+
+	v = prm_read_mod_reg(domain, idx);
+	v &= mask;
+	v >>= __ffs(mask);
+
+	return v;
+}
+
 /* Read a register in a CM module */
 u32 cm_read_mod_reg(s16 module, u16 idx)
 {
@@ -217,26 +244,22 @@ u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
  * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness
  * @reg: physical address of module IDLEST register
  * @mask: value to mask against to determine if the module is active
+ * @idlest: idle state indicator (0 or 1) for the clock
  * @name: name of the clock (for printk)
  *
  * Returns 1 if the module indicated readiness in time, or 0 if it
  * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds.
  */
-int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name)
+int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
+				const char *name)
 {
 	int i = 0;
 	int ena = 0;
 
-	/*
-	 * 24xx uses 0 to indicate not ready, and 1 to indicate ready.
-	 * 34xx reverses this, just to keep us on our toes
-	 */
-	if (cpu_is_omap24xx())
-		ena = mask;
-	else if (cpu_is_omap34xx())
+	if (idlest)
 		ena = 0;
 	else
-		BUG();
+		ena = mask;
 
 	/* Wait for lock */
 	omap_test_timeout(((__raw_readl(reg) & mask) == ena),
@@ -254,9 +277,19 @@ int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name)
 
 void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals)
 {
-	prm_base = omap2_globals->prm;
-	cm_base = omap2_globals->cm;
-	cm2_base = omap2_globals->cm2;
+	/* Static mapping, never released */
+	if (omap2_globals->prm) {
+		prm_base = ioremap(omap2_globals->prm, SZ_8K);
+		WARN_ON(!prm_base);
+	}
+	if (omap2_globals->cm) {
+		cm_base = ioremap(omap2_globals->cm, SZ_8K);
+		WARN_ON(!cm_base);
+	}
+	if (omap2_globals->cm2) {
+		cm2_base = ioremap(omap2_globals->cm2, SZ_8K);
+		WARN_ON(!cm2_base);
+	}
 }
 
 #ifdef CONFIG_ARCH_OMAP3
@@ -280,7 +313,7 @@ void omap3_prcm_save_context(void)
 	prcm_context.emu_cm_clksel =
 			 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
 	prcm_context.emu_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.pll_cm_autoidle2 =
 			 cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
 	prcm_context.pll_cm_clksel4 =
@@ -333,23 +366,25 @@ void omap3_prcm_save_context(void)
 	prcm_context.mpu_cm_autoidle2 =
 			 cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
 	prcm_context.iva2_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.mpu_cm_clkstctrl =
-			 cm_read_mod_reg(MPU_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.core_cm_clkstctrl =
-			 cm_read_mod_reg(CORE_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.sgx_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
+						OMAP2_CM_CLKSTCTRL);
 	prcm_context.dss_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.cam_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.per_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.neon_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430_NEON_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
 	prcm_context.usbhost_cm_clkstctrl =
-			 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_CLKSTCTRL);
+			 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
+						OMAP2_CM_CLKSTCTRL);
 	prcm_context.core_cm_autoidle1 =
 			 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
 	prcm_context.core_cm_autoidle2 =
@@ -432,7 +467,7 @@ void omap3_prcm_restore_context(void)
 	cm_write_mod_reg(prcm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
 					 CM_CLKSEL1);
 	cm_write_mod_reg(prcm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
-					 CM_CLKSTCTRL);
+					 OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.pll_cm_autoidle2, PLL_MOD,
 					 CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.pll_cm_clksel4, PLL_MOD,
@@ -478,22 +513,23 @@ void omap3_prcm_restore_context(void)
 					CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.mpu_cm_autoidle2, MPU_MOD, CM_AUTOIDLE2);
 	cm_write_mod_reg(prcm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
-					CM_CLKSTCTRL);
-	cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD, CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
+	cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD,
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.core_cm_clkstctrl, CORE_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
-					CM_CLKSTCTRL);
+					OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.usbhost_cm_clkstctrl,
-					OMAP3430ES2_USBHOST_MOD, CM_CLKSTCTRL);
+				OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
 	cm_write_mod_reg(prcm_context.core_cm_autoidle1, CORE_MOD,
 					CM_AUTOIDLE1);
 	cm_write_mod_reg(prcm_context.core_cm_autoidle2, CORE_MOD,