diff mbox

[8/9] omap3: pm: introduce dynamic OPP

Message ID 1258004721-7315-9-git-send-email-nm@ti.com (mailing list archive)
State RFC
Delegated to: Kevin Hilman
Headers show

Commit Message

Nishanth Menon Nov. 12, 2009, 5:45 a.m. UTC
None
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 11f0dc5..de1b632 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -222,6 +222,7 @@  static void __init omap_3430sdp_init_irq(void)
 	omap_board_config_size = ARRAY_SIZE(sdp3430_config);
 	omap3_pm_init_vc(&omap3_setuptime_table);
 	omap3_pm_init_cpuidle(omap3_cpuidle_params_table);
+	omap3_pm_init_opp_table();
 	omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL, omap3_mpu_rate_table,
 			     omap3_dsp_rate_table, omap3_l3_rate_table);
 	omap_init_irq();
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index d0a95ea..65bab97 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -351,6 +351,7 @@  static void __init omap3_beagle_init_irq(void)
 {
 	omap_board_config = omap3_beagle_config;
 	omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
+	omap3_pm_init_opp_table();
 	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 			     mt46h32m32lf6_sdrc_params, omap3_mpu_rate_table,
 			     omap3_dsp_rate_table, omap3_l3_rate_table);
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 2c63002..d8318cd 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -336,6 +336,7 @@  static void __init omap3_evm_init_irq(void)
 {
 	omap_board_config = omap3_evm_config;
 	omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
+	omap3_pm_init_opp_table();
 	omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL, omap3_mpu_rate_table,
 	                     omap3_dsp_rate_table, omap3_l3_rate_table);
 	omap_init_irq();
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 527f0c6..1f24933 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -31,6 +31,7 @@ 
 #include <plat/gpmc.h>
 #include <plat/usb.h>
 
+#include "pm.h"
 #include "omap3-opp.h"
 
 #define RX51_GPIO_SLEEP_IND 162
@@ -84,6 +85,7 @@  static void __init rx51_init_irq(void)
 {
 	omap_board_config = rx51_config;
 	omap_board_config_size = ARRAY_SIZE(rx51_config);
+	omap3_pm_init_opp_table();
 	omap2_init_common_hw(rx51_get_sdram_timings(),
 			     rx51_get_sdram_timings(), omap3_mpu_rate_table,
 			     omap3_dsp_rate_table, omap3_l3_rate_table);
diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c
index b6801a7..a7e1fee 100644
--- a/arch/arm/mach-omap2/board-zoom2.c
+++ b/arch/arm/mach-omap2/board-zoom2.c
@@ -25,6 +25,7 @@ 
 #include <plat/usb.h>
 
 #include "mmc-twl4030.h"
+#include "pm.h"
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "omap3-opp.h"
 
@@ -215,6 +216,7 @@  static void __init omap_zoom2_init_irq(void)
 {
 	omap_board_config = zoom2_config;
 	omap_board_config_size = ARRAY_SIZE(zoom2_config);
+	omap3_pm_init_opp_table();
 	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 				 mt46h32m32lf6_sdrc_params, omap3_mpu_rate_table,
 				 omap3_dsp_rate_table, omap3_l3_rate_table);
diff --git a/arch/arm/mach-omap2/omap3-opp.h b/arch/arm/mach-omap2/omap3-opp.h
index 27e2ca5..7f27f44 100644
--- a/arch/arm/mach-omap2/omap3-opp.h
+++ b/arch/arm/mach-omap2/omap3-opp.h
@@ -21,8 +21,8 @@ 
 #define S83M    83000000
 #define S166M   166000000
 
-extern struct omap_opp omap3_mpu_rate_table[];
-extern struct omap_opp omap3_dsp_rate_table[];
-extern struct omap_opp omap3_l3_rate_table[];
+extern struct omap_opp *omap3_mpu_rate_table;
+extern struct omap_opp *omap3_dsp_rate_table;
+extern struct omap_opp *omap3_l3_rate_table;
 
 #endif
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index b576424..1aabf74 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -51,6 +51,14 @@  struct cpuidle_params {
 extern void omap3_pm_init_vc(struct prm_setup_vc *setup_vc);
 extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
 
+/**
+ * omap3_pm_init_opp_table - OMAP opp table lookup called after
+ * cpu is detected.
+ * Initialize the basic opp table here, board files
+ * could choose to modify opp table after the basic initialization
+ */
+extern void omap3_pm_init_opp_table(void);
+
 extern int resource_set_opp_level(int res, u32 target_level, int flags);
 extern int resource_access_opp_lock(int res, int delta);
 #define resource_lock_opp(res) resource_access_opp_lock(res, 1)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 92f11d7..511137c 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -99,7 +99,7 @@  static struct prm_setup_vc prm_setup = {
 	.vdd1_off = 0x00,	/* 0.6v */
 };
 
-struct omap_opp omap3_mpu_rate_table[] = {
+static __initdata struct omap_opp omap34xx_mpu_rate_table[] = {
 	{0, 0, 0, 0},
 	/*OPP1*/
 	{true, S125M, VDD1_OPP1, 0x1E},
@@ -114,7 +114,7 @@  struct omap_opp omap3_mpu_rate_table[] = {
 	{0, 0, 0, 0},
 };
 
-struct omap_opp omap3_l3_rate_table[] = {
+static __initdata struct omap_opp omap34xx_l3_rate_table[] = {
 	{0, 0, 0, 0},
 	/*OPP1*/
 	{false, 0, VDD2_OPP1, 0x1E},
@@ -125,7 +125,7 @@  struct omap_opp omap3_l3_rate_table[] = {
 	{0, 0, 0, 0},
 };
 
-struct omap_opp omap3_dsp_rate_table[] = {
+static __initdata struct omap_opp omap34xx_dsp_rate_table[] = {
 	{0, 0, 0, 0},
 	/*OPP1*/
 	{true, S90M, VDD1_OPP1, 0x1E},
@@ -140,6 +140,10 @@  struct omap_opp omap3_dsp_rate_table[] = {
 	{0, 0, 0, 0},
 };
 
+struct omap_opp *omap3_mpu_rate_table;
+struct omap_opp *omap3_dsp_rate_table;
+struct omap_opp *omap3_l3_rate_table;
+
 static inline void omap3_per_save_context(void)
 {
 	omap_gpio_save_context();
@@ -1276,6 +1280,27 @@  static void __init configure_vc(void)
 	pm_dbg_regset_init(2);
 }
 
+void __init omap3_pm_init_opp_table(void)
+{
+	/* Populate the base CPU rate tables here */
+	omap3_mpu_rate_table = kmalloc(sizeof(omap34xx_mpu_rate_table),
+			GFP_KERNEL);
+	omap3_dsp_rate_table = kmalloc(sizeof(omap34xx_dsp_rate_table),
+			GFP_KERNEL);
+	omap3_l3_rate_table = kmalloc(sizeof(omap34xx_l3_rate_table),
+			GFP_KERNEL);
+
+	BUG_ON(!omap3_mpu_rate_table || !omap3_dsp_rate_table ||
+		!omap3_l3_rate_table);
+
+	memcpy(omap3_mpu_rate_table, omap34xx_mpu_rate_table,
+			sizeof(omap34xx_mpu_rate_table));
+	memcpy(omap3_dsp_rate_table, omap34xx_dsp_rate_table,
+			sizeof(omap34xx_dsp_rate_table));
+	memcpy(omap3_l3_rate_table, omap34xx_l3_rate_table,
+			sizeof(omap34xx_l3_rate_table));
+}
+
 static int __init omap3_pm_early_init(void)
 {
 	prm_clear_mod_reg_bits(OMAP3430_OFFMODE_POL, OMAP3430_GR_MOD,