Merge branch 'omap/omap1' into next/devel

arch/arm/configs/omap1_defconfig

@@ -48,12 +48,6 @@ CONFIG_MACH_SX1=y
 CONFIG_MACH_NOKIA770=y
 CONFIG_MACH_AMS_DELTA=y
 CONFIG_MACH_OMAP_GENERIC=y
-CONFIG_OMAP_ARM_216MHZ=y
-CONFIG_OMAP_ARM_195MHZ=y
-CONFIG_OMAP_ARM_192MHZ=y
-CONFIG_OMAP_ARM_182MHZ=y
-CONFIG_OMAP_ARM_168MHZ=y
-# CONFIG_OMAP_ARM_60MHZ is not set
 # CONFIG_ARM_THUMB is not set
 CONFIG_PCCARD=y
 CONFIG_OMAP_CF=y

arch/arm/mach-omap1/Kconfig

@@ -168,70 +168,6 @@ config MACH_OMAP_GENERIC
           custom OMAP boards. Say Y here if you have a custom
           board.
 
-comment "OMAP CPU Speed"
-	depends on ARCH_OMAP1
-
-config OMAP_ARM_216MHZ
-	bool "OMAP ARM 216 MHz CPU (1710 only)"
-        depends on ARCH_OMAP1 && ARCH_OMAP16XX
-        help
-          Enable 216 MHz clock for OMAP1710 CPU. If unsure, say N.
-
-config OMAP_ARM_195MHZ
-	bool "OMAP ARM 195 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 195MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_192MHZ
-	bool "OMAP ARM 192 MHz CPU"
-	depends on ARCH_OMAP1 && ARCH_OMAP16XX
-	help
-          Enable 192MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_182MHZ
-	bool "OMAP ARM 182 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 182MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_168MHZ
-	bool "OMAP ARM 168 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 168MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_150MHZ
-	bool "OMAP ARM 150 MHz CPU"
-	depends on ARCH_OMAP1 && ARCH_OMAP15XX
-	help
-	  Enable 150MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_120MHZ
-	bool "OMAP ARM 120 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 120MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_96MHZ
-	bool "OMAP ARM 96 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 96MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_60MHZ
-	bool "OMAP ARM 60 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-        default y
-	help
-          Enable 60MHz clock for OMAP CPU. If unsure, say Y.
-
-config OMAP_ARM_30MHZ
-	bool "OMAP ARM 30 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 30MHz clock for OMAP CPU. If unsure, say N.
-
 endmenu
 
 endif

arch/arm/mach-omap1/clock.c

@@ -197,11 +197,10 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
 	ref_rate = ck_ref_p->rate;
 
 	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
-		if (ptr->xtal != ref_rate)
+		if (!(ptr->flags & cpu_mask))
 			continue;
 
-		/* DPLL1 cannot be reprogrammed without risking system crash */
-		if (likely(dpll1_rate != 0) && ptr->pll_rate != dpll1_rate)
+		if (ptr->xtal != ref_rate)
 			continue;
 
 		/* Can check only after xtal frequency check */
@@ -215,11 +214,7 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
 	/*
 	 * In most cases we should not need to reprogram DPLL.
 	 * Reprogramming the DPLL is tricky, it must be done from SRAM.
-	 * (on 730, bit 13 must always be 1)
 	 */
-	if (cpu_is_omap7xx())
-		omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val | 0x2000);
-	else
 	omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
 
 	/* XXX Do we need to recalculate the tree below DPLL1 at this point? */
@@ -290,6 +285,9 @@ long omap1_round_to_table_rate(struct clk *clk, unsigned long rate)
 	highest_rate = -EINVAL;
 
 	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
+		if (!(ptr->flags & cpu_mask))
+			continue;
+
 		if (ptr->xtal != ref_rate)
 			continue;
 

arch/arm/mach-omap1/clock.h

@@ -111,4 +111,7 @@ extern const struct clkops clkops_dummy;
 extern const struct clkops clkops_uart_16xx;
 extern const struct clkops clkops_generic;
 
+/* used for passing SoC type to omap1_{select,round_to}_table_rate() */
+extern u32 cpu_mask;
+
 #endif

arch/arm/mach-omap1/clock_data.c

@@ -16,6 +16,8 @@
 
 #include <linux/kernel.h>
 #include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <linux/delay.h>
 #include <linux/io.h>
 
 #include <asm/mach-types.h>  /* for machine_is_* */
@@ -23,6 +25,7 @@
 #include <plat/clock.h>
 #include <plat/cpu.h>
 #include <plat/clkdev_omap.h>
+#include <plat/sram.h>	/* for omap_sram_reprogram_clock() */
 #include <plat/usb.h>   /* for OTG_BASE */
 
 #include "clock.h"
@@ -776,12 +779,14 @@ static void __init omap1_show_rates(void)
 		arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
 }
 
+u32 cpu_mask;
+
 int __init omap1_clk_init(void)
 {
 	struct omap_clk *c;
 	const struct omap_clock_config *info;
 	int crystal_type = 0; /* Default 12 MHz */
-	u32 reg, cpu_mask;
+	u32 reg;
 
 #ifdef CONFIG_DEBUG_LL
 	/*
@@ -806,6 +811,8 @@ int __init omap1_clk_init(void)
 		clk_preinit(c->lk.clk);
 
 	cpu_mask = 0;
+	if (cpu_is_omap1710())
+		cpu_mask |= CK_1710;
 	if (cpu_is_omap16xx())
 		cpu_mask |= CK_16XX;
 	if (cpu_is_omap1510())
@@ -927,16 +934,18 @@ int __init omap1_clk_init(void)
 
 void __init omap1_clk_late_init(void)
 {
-	if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE)
-		return;
+	unsigned long rate = ck_dpll1.rate;
 
 	/* Find the highest supported frequency and enable it */
 	if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
 		pr_err("System frequencies not set, using default. Check your config.\n");
-		omap_writew(0x2290, DPLL_CTL);
-		omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
+		/*
+		 * Reprogramming the DPLL is tricky, it must be done from SRAM.
+		 */
+		omap_sram_reprogram_clock(0x2290, 0x0005);
 		ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
 	}
 	propagate_rate(&ck_dpll1);
 	omap1_show_rates();
+	loops_per_jiffy = cpufreq_scale(loops_per_jiffy, rate, ck_dpll1.rate);
 }

arch/arm/mach-omap1/opp.h

@@ -21,6 +21,7 @@ struct mpu_rate {
 	unsigned long		pll_rate;
 	__u16			ckctl_val;
 	__u16			dpllctl_val;
+	u32			flags;
 };
 
 extern struct mpu_rate omap1_rate_table[];

arch/arm/mach-omap1/opp_data.c

@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <plat/clkdev_omap.h>
 #include "opp.h"
 
 /*-------------------------------------------------------------------------
@@ -20,40 +21,34 @@ struct mpu_rate omap1_rate_table[] = {
 	 * NOTE: Comment order here is different from bits in CKCTL value:
 	 * armdiv, dspdiv, dspmmu, tcdiv, perdiv, lcddiv
 	 */
-#if defined(CONFIG_OMAP_ARM_216MHZ)
-	{ 216000000, 12000000, 216000000, 0x050d, 0x2910 }, /* 1/1/2/2/2/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_195MHZ)
-	{ 195000000, 13000000, 195000000, 0x050e, 0x2790 }, /* 1/1/2/2/4/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_192MHZ)
-	{ 192000000, 19200000, 192000000, 0x050f, 0x2510 }, /* 1/1/2/2/8/8 */
-	{ 192000000, 12000000, 192000000, 0x050f, 0x2810 }, /* 1/1/2/2/8/8 */
-	{  96000000, 12000000, 192000000, 0x055f, 0x2810 }, /* 2/2/2/2/8/8 */
-	{  48000000, 12000000, 192000000, 0x0baf, 0x2810 }, /* 4/4/4/8/8/8 */
-	{  24000000, 12000000, 192000000, 0x0fff, 0x2810 }, /* 8/8/8/8/8/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_182MHZ)
-	{ 182000000, 13000000, 182000000, 0x050e, 0x2710 }, /* 1/1/2/2/4/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_168MHZ)
-	{ 168000000, 12000000, 168000000, 0x010f, 0x2710 }, /* 1/1/1/2/8/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_150MHZ)
-	{ 150000000, 12000000, 150000000, 0x010a, 0x2cb0 }, /* 1/1/1/2/4/4 */
-#endif
-#if defined(CONFIG_OMAP_ARM_120MHZ)
-	{ 120000000, 12000000, 120000000, 0x010a, 0x2510 }, /* 1/1/1/2/4/4 */
-#endif
-#if defined(CONFIG_OMAP_ARM_96MHZ)
-	{  96000000, 12000000,  96000000, 0x0005, 0x2410 }, /* 1/1/1/1/2/2 */
-#endif
-#if defined(CONFIG_OMAP_ARM_60MHZ)
-	{  60000000, 12000000,  60000000, 0x0005, 0x2290 }, /* 1/1/1/1/2/2 */
-#endif
-#if defined(CONFIG_OMAP_ARM_30MHZ)
-	{  30000000, 12000000,  60000000, 0x0555, 0x2290 }, /* 2/2/2/2/2/2 */
-#endif
+	{ 216000000, 12000000, 216000000, 0x050d, 0x2910, /* 1/1/2/2/2/8 */
+			CK_1710 },
+	{ 195000000, 13000000, 195000000, 0x050e, 0x2790, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 192000000, 19200000, 192000000, 0x050f, 0x2510, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{ 192000000, 12000000, 192000000, 0x050f, 0x2810, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{  96000000, 12000000, 192000000, 0x055f, 0x2810, /* 2/2/2/2/8/8 */
+			CK_16XX },
+	{  48000000, 12000000, 192000000, 0x0baf, 0x2810, /* 4/4/4/8/8/8 */
+			CK_16XX },
+	{  24000000, 12000000, 192000000, 0x0fff, 0x2810, /* 8/8/8/8/8/8 */
+			CK_16XX },
+	{ 182000000, 13000000, 182000000, 0x050e, 0x2710, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 168000000, 12000000, 168000000, 0x010f, 0x2710, /* 1/1/1/2/8/8 */
+			CK_16XX|CK_7XX },
+	{ 150000000, 12000000, 150000000, 0x010a, 0x2cb0, /* 1/1/1/2/4/4 */
+			CK_1510 },
+	{ 120000000, 12000000, 120000000, 0x010a, 0x2510, /* 1/1/1/2/4/4 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  96000000, 12000000,  96000000, 0x0005, 0x2410, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  60000000, 12000000,  60000000, 0x0005, 0x2290, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  30000000, 12000000,  60000000, 0x0555, 0x2290, /* 2/2/2/2/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
 	{ 0, 0, 0, 0, 0 },
 };
 

arch/arm/plat-omap/include/plat/clkdev_omap.h

@@ -40,6 +40,7 @@ struct omap_clk {
 #define CK_443X		(1 << 11)
 #define CK_TI816X	(1 << 12)
 #define CK_446X		(1 << 13)
+#define CK_1710		(1 << 15)	/* 1710 extra for rate selection */
 
 
 #define CK_34XX		(CK_3430ES1 | CK_3430ES2PLUS)

arch/arm/plat-omap/sram.c

@@ -141,11 +141,9 @@ static void __init omap_detect_sram(void)
 			omap_sram_size = 0x32000;	/* 200K */
 		else if (cpu_is_omap15xx())
 			omap_sram_size = 0x30000;	/* 192K */
-		else if (cpu_is_omap1610() || cpu_is_omap1621() ||
-		     cpu_is_omap1710())
+		else if (cpu_is_omap1610() || cpu_is_omap1611() ||
+				cpu_is_omap1621() || cpu_is_omap1710())
 			omap_sram_size = 0x4000;	/* 16K */
-		else if (cpu_is_omap1611())
-			omap_sram_size = SZ_256K;
 		else {
 			pr_err("Could not detect SRAM size\n");
 			omap_sram_size = 0x4000;
@@ -224,6 +222,9 @@ static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
 void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
 {
 	BUG_ON(!_omap_sram_reprogram_clock);
+	/* On 730, bit 13 must always be 1 */
+	if (cpu_is_omap7xx())
+		ckctl |= 0x2000;
 	_omap_sram_reprogram_clock(dpllctl, ckctl);
 }