[PATCH 0/3 v2] omap: 4460 support

[PATCH 0/3 v2] omap: 4460 support

[Jan Weitzel]

Add support for OMAP4460 cpu
on top of ed358834 (next)

v2: merge usage of omap4_scale_vcores to 1/3
    avoid volatile int*


Jan Weitzel (3):
  Add support for OMAP4460 TPS62361
  OMAP4460: ram init changes
  OMAP4460: clock init

 arch/arm/boards/panda/lowlevel.c                |    4 +-
 arch/arm/boards/panda/mux.c                     |    8 +++
 arch/arm/boards/pcm049/lowlevel.c               |   15 ++++--
 arch/arm/boards/pcm049/mux.c                    |    8 +++
 arch/arm/boards/phycard-a-xl2/lowlevel.c        |   13 ++++-
 arch/arm/boards/phycard-a-xl2/mux.c             |    8 +++
 arch/arm/mach-omap/include/mach/omap4-clock.h   |   19 +++++++
 arch/arm/mach-omap/include/mach/omap4-silicon.h |   13 +++++-
 arch/arm/mach-omap/omap4_clock.c                |   58 +++++++++++++++++-----
 arch/arm/mach-omap/omap4_generic.c              |   60 +++++++++++++++++++++--
 10 files changed, 181 insertions(+), 25 deletions(-)


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[PATCH 1/3] Add support for OMAP4460 TPS62361

[Jan Weitzel]

based on: [U-Boot] [PATCH v 4/5] omap4: support TPS programming
TPS62361 is the new power supply used in OMAP4460 that
supplies vdd_mpu.

VCORE1 from Phoenix supplies vdd_core and VCORE2 supplies
vdd_iva. VCORE3 is not used in OMAP4460.

Signed-off-by: F. Gasnier fabrice.gasnier@cenosys.com
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
---
 arch/arm/boards/panda/lowlevel.c                |    4 ++-
 arch/arm/boards/pcm049/lowlevel.c               |    4 ++-
 arch/arm/boards/phycard-a-xl2/lowlevel.c        |    4 ++-
 arch/arm/mach-omap/include/mach/omap4-clock.h   |   15 +++++++++
 arch/arm/mach-omap/include/mach/omap4-silicon.h |    9 +++++-
 arch/arm/mach-omap/omap4_clock.c                |   19 +++++++++++
 arch/arm/mach-omap/omap4_generic.c              |   39 +++++++++++++++++++++-
 7 files changed, 88 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boards/panda/lowlevel.c b/arch/arm/boards/panda/lowlevel.c
index 8591fff..0b4b199 100644
--- a/arch/arm/boards/panda/lowlevel.c
+++ b/arch/arm/boards/panda/lowlevel.c
@@ -28,6 +28,8 @@
 #include <mach/syslib.h>
 #include <asm/barebox-arm.h>
 
+#define TPS62361_VSEL0_GPIO    7
+
 void set_muxconf_regs(void);
 
 static const struct ddr_regs ddr_regs_400_mhz_2cs = {
@@ -70,7 +72,7 @@ static void noinline panda_init_lowlevel(void)
 	omap4_ddr_init(&ddr_regs_400_mhz_2cs, &core);
 
 	/* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
-	omap4_scale_vcores();
+	omap4_scale_vcores(TPS62361_VSEL0_GPIO);
 
 	board_init_lowlevel_return();
 }
diff --git a/arch/arm/boards/pcm049/lowlevel.c b/arch/arm/boards/pcm049/lowlevel.c
index 5b91098..5e591fa 100644
--- a/arch/arm/boards/pcm049/lowlevel.c
+++ b/arch/arm/boards/pcm049/lowlevel.c
@@ -28,6 +28,8 @@
 #include <mach/syslib.h>
 #include <asm/barebox-arm.h>
 
+#define TPS62361_VSEL0_GPIO    182
+
 void set_muxconf_regs(void);
 
 static const struct ddr_regs ddr_regs_mt42L64M64_25_400_mhz = {
@@ -57,7 +59,7 @@ static void noinline pcm049_init_lowlevel(void)
 	omap4_ddr_init(&ddr_regs_mt42L64M64_25_400_mhz, &core);
 
 	/* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
-	omap4_scale_vcores();
+	omap4_scale_vcores(TPS62361_VSEL0_GPIO);
 
 	writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
 
diff --git a/arch/arm/boards/phycard-a-xl2/lowlevel.c b/arch/arm/boards/phycard-a-xl2/lowlevel.c
index b8de2aa..2aa79a8 100644
--- a/arch/arm/boards/phycard-a-xl2/lowlevel.c
+++ b/arch/arm/boards/phycard-a-xl2/lowlevel.c
@@ -28,6 +28,8 @@
 #include <mach/syslib.h>
 #include <asm/barebox-arm.h>
 
+#define TPS62361_VSEL0_GPIO    7
+
 void set_muxconf_regs(void);
 
 static const struct ddr_regs ddr_regs_mt42L64M64_25_400_mhz = {
@@ -57,7 +59,7 @@ static noinline void pcaaxl2_init_lowlevel(void)
 	omap4_ddr_init(&ddr_regs_mt42L64M64_25_400_mhz, &core);
 
 	/* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
-	omap4_scale_vcores();
+	omap4_scale_vcores(TPS62361_VSEL0_GPIO);
 
 	writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
 
diff --git a/arch/arm/mach-omap/include/mach/omap4-clock.h b/arch/arm/mach-omap/include/mach/omap4-clock.h
index 0a31d09..391ee63 100644
--- a/arch/arm/mach-omap/include/mach/omap4-clock.h
+++ b/arch/arm/mach-omap/include/mach/omap4-clock.h
@@ -271,6 +271,20 @@
 #define PLL_FAST_RELOCK_BYPASS	6 /* CORE */
 #define PLL_LOCK		7 /* MPU, IVA, CORE & PER */
 
+/* TPS */
+#define TPS62361_I2C_SLAVE_ADDR		0x60
+#define TPS62361_REG_ADDR_SET0		0x0
+#define TPS62361_REG_ADDR_SET1		0x1
+#define TPS62361_REG_ADDR_SET2		0x2
+#define TPS62361_REG_ADDR_SET3		0x3
+#define TPS62361_REG_ADDR_CTRL		0x4
+#define TPS62361_REG_ADDR_TEMP		0x5
+#define TPS62361_REG_ADDR_RMP_CTRL	0x6
+#define TPS62361_REG_ADDR_CHIP_ID	0x8
+#define TPS62361_REG_ADDR_CHIP_ID_2	0x9
+
+#define TPS62361_BASE_VOLT_MV	500
+
 /* Used to index into DPLL parameter tables */
 struct dpll_param {
 	unsigned int m;
@@ -317,4 +331,5 @@ void omap4_configure_core_dpll_no_lock(const struct dpll_param *param);
 void omap4_lock_core_dpll(void);
 void omap4_lock_core_dpll_shadow(const struct dpll_param *param);
 void omap4_enable_all_clocks(void);
+void omap4_do_scale_tps62361(u32 reg, u32 volt_mv);
 
diff --git a/arch/arm/mach-omap/include/mach/omap4-silicon.h b/arch/arm/mach-omap/include/mach/omap4-silicon.h
index c785475..d5517c5 100644
--- a/arch/arm/mach-omap/include/mach/omap4-silicon.h
+++ b/arch/arm/mach-omap/include/mach/omap4-silicon.h
@@ -60,6 +60,13 @@
 #define OMAP44XX_PRM_VC_VAL_BYPASS	(OMAP44XX_WAKEUP_L4_IO_BASE + 0x7ba0)
 #define OMAP44XX_PRM_VC_CFG_I2C_MODE	(OMAP44XX_WAKEUP_L4_IO_BASE + 0x7ba8)
 #define OMAP44XX_PRM_VC_CFG_I2C_CLK	(OMAP44XX_WAKEUP_L4_IO_BASE + 0x7bac)
+#define OMAP44XX_PRM_VC_VAL_BYPASS_VALID_BIT		0x1000000
+#define OMAP44XX_PRM_VC_VAL_BYPASS_SLAVEADDR_SHIFT	0
+#define OMAP44XX_PRM_VC_VAL_BYPASS_SLAVEADDR_MASK	0x7F
+#define OMAP44XX_PRM_VC_VAL_BYPASS_REGADDR_SHIFT	8
+#define OMAP44XX_PRM_VC_VAL_BYPASS_REGADDR_MASK		0xFF
+#define OMAP44XX_PRM_VC_VAL_BYPASS_DATA_SHIFT		16
+#define OMAP44XX_PRM_VC_VAL_BYPASS_DATA_MASK		0xFF
 
 /* IRQ */
 #define OMAP44XX_PRM_IRQSTATUS_MPU_A9	(OMAP44XX_WAKEUP_L4_IO_BASE + 0x6010)
@@ -178,6 +185,6 @@ struct dpll_param;
 void omap4_ddr_init(const struct ddr_regs *, const struct dpll_param *);
 void omap4_power_i2c_send(u32);
 unsigned int omap4_revision(void);
-noinline int omap4_scale_vcores(void);
+noinline int omap4_scale_vcores(unsigned vsel0_pin);
 
 #endif
diff --git a/arch/arm/mach-omap/omap4_clock.c b/arch/arm/mach-omap/omap4_clock.c
index 3ab01f0..564a748 100644
--- a/arch/arm/mach-omap/omap4_clock.c
+++ b/arch/arm/mach-omap/omap4_clock.c
@@ -1,6 +1,7 @@
 #include <common.h>
 #include <io.h>
 #include <mach/syslib.h>
+#include <mach/silicon.h>
 #include <mach/clocks.h>
 
 #define LDELAY	12000000
@@ -378,3 +379,21 @@ void omap4_enable_all_clocks(void)
 	sr32(CM_L3INIT_USBPHY_CLKCTRL, 0, 32, 0x301);
 }
 
+void omap4_do_scale_tps62361(u32 reg, u32 volt_mv)
+{
+	u32 temp, step;
+
+	step = volt_mv - TPS62361_BASE_VOLT_MV;
+	step /= 10;
+
+	temp = TPS62361_I2C_SLAVE_ADDR |
+	    (reg << OMAP44XX_PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
+	    (step << OMAP44XX_PRM_VC_VAL_BYPASS_DATA_SHIFT) |
+	    OMAP44XX_PRM_VC_VAL_BYPASS_VALID_BIT;
+	debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
+
+	writel(temp, OMAP44XX_PRM_VC_VAL_BYPASS);
+	if (!wait_on_value(OMAP44XX_PRM_VC_VAL_BYPASS_VALID_BIT, 0,
+				OMAP44XX_PRM_VC_VAL_BYPASS, LDELAY))
+		puts("Scaling voltage failed for vdd_mpu from TPS\n");
+}
diff --git a/arch/arm/mach-omap/omap4_generic.c b/arch/arm/mach-omap/omap4_generic.c
index 28fb776..3f6865a 100644
--- a/arch/arm/mach-omap/omap4_generic.c
+++ b/arch/arm/mach-omap/omap4_generic.c
@@ -7,6 +7,7 @@
 #include <mach/syslib.h>
 #include <mach/xload.h>
 #include <mach/gpmc.h>
+#include <mach/gpio.h>
 
 /*
  *  The following several lines are taken from U-Boot to support
@@ -468,7 +469,7 @@ enum omap_boot_src omap4_bootsrc(void)
 
 #define I2C_SLAVE 0x12
 
-noinline int omap4_scale_vcores(void)
+noinline int omap4_scale_vcores(unsigned vsel0_pin)
 {
 	unsigned int rev = omap4_revision();
 
@@ -478,8 +479,41 @@ noinline int omap4_scale_vcores(void)
 	writel(0, OMAP44XX_PRM_VC_CFG_I2C_MODE);
 	writel(0x6026, OMAP44XX_PRM_VC_CFG_I2C_CLK);
 
+	/* TPS - supplies vdd_mpu on 4460 */
+	if (rev >= OMAP4460_ES1_0) {
+		/*
+		 * Setup SET1 and SET0 with right values so that kernel
+		 * can use either of them based on its needs.
+		 */
+		omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET0, 1430);
+		omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET1, 1430);
+
+		/*
+		 * Select SET1 in TPS62361:
+		 * VSEL1 is grounded on board. So the following selects
+		 * VSEL1 = 0 and VSEL0 = 1
+		 */
+		gpio_direction_output(vsel0_pin, 0);
+		gpio_set_value(vsel0_pin, 1);
+	}
+
 	/* set VCORE1 force VSEL */
-	omap4_power_i2c_send((0x3A55 << 8) | I2C_SLAVE);
+	/*
+	 * 4430 : supplies vdd_mpu
+	 * Setting a high voltage for Nitro mode as smart reflex is not enabled.
+	 * We use the maximum possible value in the AVS range because the next
+	 * higher voltage in the discrete range (code >= 0b111010) is way too
+	 * high
+	 *
+	 * 4460 : supplies vdd_core
+	 *
+	 */
+	if (rev < OMAP4460_ES1_0)
+		/* 0x55: i2c addr, 3A: ~ 1430 mvolts*/
+		omap4_power_i2c_send((0x3A55 << 8) | I2C_SLAVE);
+	else
+		/* 0x55: i2c addr, 28: ~ 1200 mvolts*/
+		omap4_power_i2c_send((0x2855 << 8) | I2C_SLAVE);
 
 	/* FIXME: set VCORE2 force VSEL, Check the reset value */
 	omap4_power_i2c_send((0x295B << 8) | I2C_SLAVE);
@@ -492,6 +526,7 @@ noinline int omap4_scale_vcores(void)
 	case OMAP4430_ES2_1:
 		omap4_power_i2c_send((0x2A61 << 8) | I2C_SLAVE);
 		break;
+	/* > OMAP4460_ES1_0 : VCORE3 not connected */
 	}
 
 	return 0;
-- 
1.7.0.4


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[PATCH 2/3] OMAP4460: ram init changes

[Jan Weitzel]

configure  Memory Adapter for 4460

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
---
 arch/arm/mach-omap/include/mach/omap4-silicon.h |    4 ++++
 arch/arm/mach-omap/omap4_generic.c              |   21 +++++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap/include/mach/omap4-silicon.h b/arch/arm/mach-omap/include/mach/omap4-silicon.h
index d5517c5..4082bac 100644
--- a/arch/arm/mach-omap/include/mach/omap4-silicon.h
+++ b/arch/arm/mach-omap/include/mach/omap4-silicon.h
@@ -101,6 +101,10 @@
 #define DMM_LISA_MAP_SYS_SIZE_MASK	(7 << 20)
 #define DMM_LISA_MAP_SYS_SIZE_SHIFT	20
 #define DMM_LISA_MAP_SYS_ADDR_MASK	(0xFF << 24)
+
+/* Memory Adapter (4460 onwards) */
+#define OMAP44XX_MA_BASE		0x482AF000
+
 /*
  * Hardware Register Details
  */
diff --git a/arch/arm/mach-omap/omap4_generic.c b/arch/arm/mach-omap/omap4_generic.c
index 3f6865a..617d786 100644
--- a/arch/arm/mach-omap/omap4_generic.c
+++ b/arch/arm/mach-omap/omap4_generic.c
@@ -29,6 +29,10 @@
 #define OMAP4460_CONTROL_ID_CODE_ES1_0  0x0B94E02F
 #define OMAP4460_CONTROL_ID_CODE_ES1_1  0x2B94E02F
 
+/* EMIF_L3_CONFIG register value */
+#define EMIF_L3_CONFIG_VAL_SYS_10_LL_0		0x0A0000FF
+#define EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0	0x0A300000
+
 void __noreturn reset_cpu(unsigned long addr)
 {
 	writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);
@@ -272,8 +276,7 @@ static void reset_phy(unsigned int base)
 void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 		const struct dpll_param *core)
 {
-	unsigned int rev;
-	rev = omap4_revision();
+	unsigned int rev = omap4_revision();
 
 	if (rev == OMAP4430_ES2_0) {
 		writel(0x9e9e9e9e, 0x4A100638);
@@ -296,6 +299,13 @@ void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 	writel(0x00000000, OMAP44XX_DMM_BASE + DMM_LISA_MAP_2);
 	writel(0xFF020100, OMAP44XX_DMM_BASE + DMM_LISA_MAP_3);
 
+	if (rev >= OMAP4460_ES1_0) {
+		writel(0x80640300, OMAP44XX_MA_BASE + DMM_LISA_MAP_0);
+
+		writel(0x00000000, OMAP44XX_MA_BASE + DMM_LISA_MAP_2);
+		writel(0xFF020100, OMAP44XX_MA_BASE + DMM_LISA_MAP_3);
+	}
+
 	/* DDR needs to be initialised @ 19.2 MHz
 	 * So put core DPLL in bypass mode
 	 * Configure the Core DPLL but don't lock it
@@ -338,6 +348,13 @@ void omap4_ddr_init(const struct ddr_regs *ddr_regs,
 	writel(0x80000000, OMAP44XX_EMIF1_BASE + EMIF_PWR_MGMT_CTRL);
 	writel(0x80000000, OMAP44XX_EMIF2_BASE + EMIF_PWR_MGMT_CTRL);
 
+	if (rev >= OMAP4460_ES1_0) {
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
+				OMAP44XX_EMIF1_BASE + EMIF_L3_CONFIG);
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
+				OMAP44XX_EMIF2_BASE + EMIF_L3_CONFIG);
+	}
+
 	/*
 	 * DMM : DMM_LISA_MAP_0(Section_0)
 	 * [31:24] SYS_ADDR 		0x80
-- 
1.7.0.4


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[PATCH 3/3] OMAP4460: clock init

[Jan Weitzel]

Change clock init to allow early gpio access. Add support for 4460 clocks.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
---
 arch/arm/boards/panda/mux.c                   |    8 +++++
 arch/arm/boards/pcm049/lowlevel.c             |   11 +++++--
 arch/arm/boards/pcm049/mux.c                  |    8 +++++
 arch/arm/boards/phycard-a-xl2/lowlevel.c      |    9 ++++-
 arch/arm/boards/phycard-a-xl2/mux.c           |    8 +++++
 arch/arm/mach-omap/include/mach/omap4-clock.h |    4 ++
 arch/arm/mach-omap/omap4_clock.c              |   39 +++++++++++++++++-------
 7 files changed, 70 insertions(+), 17 deletions(-)

diff --git a/arch/arm/boards/panda/mux.c b/arch/arm/boards/panda/mux.c
index 310e433..3783006 100644
--- a/arch/arm/boards/panda/mux.c
+++ b/arch/arm/boards/panda/mux.c
@@ -3,6 +3,7 @@
 #include <io.h>
 #include <mach/omap4-silicon.h>
 #include <mach/omap4-mux.h>
+#include <mach/omap4-clock.h>
 
 static const struct pad_conf_entry core_padconf_array[] = {
 	{ GPMC_AD0, PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1  /* sdmmc2_dat0 */ },
@@ -245,4 +246,11 @@ void set_muxconf_regs(void)
 
 	omap4_do_set_mux(OMAP44XX_CONTROL_PADCONF_WKUP, wkup_padconf_array,
 			ARRAY_SIZE(wkup_padconf_array));
+
+	/* gpio_wk7 is used for controlling TPS on 4460 */
+	if (omap4_revision() >= OMAP4460_ES1_0) {
+		writew(M3, OMAP44XX_CONTROL_PADCONF_WKUP + PAD1_FREF_CLK4_REQ);
+		/* Enable GPIO-1 clocks before TPS initialization */
+		omap4_enable_gpio1_wup_clocks();
+	}
 }
diff --git a/arch/arm/boards/pcm049/lowlevel.c b/arch/arm/boards/pcm049/lowlevel.c
index 5e591fa..65a29ec 100644
--- a/arch/arm/boards/pcm049/lowlevel.c
+++ b/arch/arm/boards/pcm049/lowlevel.c
@@ -48,7 +48,8 @@ static const struct ddr_regs ddr_regs_mt42L64M64_25_400_mhz = {
 static void noinline pcm049_init_lowlevel(void)
 {
 	struct dpll_param core = OMAP4_CORE_DPLL_PARAM_19M2_DDR400;
-	struct dpll_param mpu = OMAP4_MPU_DPLL_PARAM_19M2_MPU1000;
+	struct dpll_param mpu44xx = OMAP4_MPU_DPLL_PARAM_19M2_MPU1000;
+	struct dpll_param mpu4460 = OMAP4_MPU_DPLL_PARAM_19M2_MPU920;
 	struct dpll_param iva = OMAP4_IVA_DPLL_PARAM_19M2;
 	struct dpll_param per = OMAP4_PER_DPLL_PARAM_19M2;
 	struct dpll_param abe = OMAP4_ABE_DPLL_PARAM_19M2;
@@ -64,7 +65,11 @@ static void noinline pcm049_init_lowlevel(void)
 	writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
 
 	/* Configure all DPLL's at 100% OPP */
-	omap4_configure_mpu_dpll(&mpu);
+	if (omap4_revision() < OMAP4460_ES1_0)
+		omap4_configure_mpu_dpll(&mpu44xx);
+	else
+		omap4_configure_mpu_dpll(&mpu4460);
+
 	omap4_configure_iva_dpll(&iva);
 	omap4_configure_per_dpll(&per);
 	omap4_configure_abe_dpll(&abe);
@@ -90,7 +95,7 @@ void board_init_lowlevel(void)
 		return;
 
 	r = 0x4030d000;
-        __asm__ __volatile__("mov sp, %0" : : "r"(r));
+	__asm__ __volatile__("mov sp, %0" : : "r"(r));
 
 	pcm049_init_lowlevel();
 }
diff --git a/arch/arm/boards/pcm049/mux.c b/arch/arm/boards/pcm049/mux.c
index a7a77b5..04e1d67 100644
--- a/arch/arm/boards/pcm049/mux.c
+++ b/arch/arm/boards/pcm049/mux.c
@@ -3,6 +3,7 @@
 #include <io.h>
 #include <mach/omap4-silicon.h>
 #include <mach/omap4-mux.h>
+#include <mach/omap4-clock.h>
 
 static const struct pad_conf_entry core_padconf_array[] = {
 	{GPMC_AD0, (IEN | PTD | DIS | M0)},				/* gpmc_ad0 */
@@ -242,4 +243,11 @@ void set_muxconf_regs(void)
 
 	omap4_do_set_mux(OMAP44XX_CONTROL_PADCONF_WKUP, wkup_padconf_array,
 			ARRAY_SIZE(wkup_padconf_array));
+
+	/* gpio_182 is used for controlling TPS on 4460 */
+	if (omap4_revision() >= OMAP4460_ES1_0) {
+		writew(M3, OMAP44XX_CONTROL_PADCONF_CORE + FREF_CLK2_OUT);
+		/* Enable GPIO-1 clocks before TPS initialization */
+		omap4_enable_gpio_clocks();
+	}
 }
diff --git a/arch/arm/boards/phycard-a-xl2/lowlevel.c b/arch/arm/boards/phycard-a-xl2/lowlevel.c
index 2aa79a8..38f80c9 100644
--- a/arch/arm/boards/phycard-a-xl2/lowlevel.c
+++ b/arch/arm/boards/phycard-a-xl2/lowlevel.c
@@ -48,7 +48,8 @@ static const struct ddr_regs ddr_regs_mt42L64M64_25_400_mhz = {
 static noinline void pcaaxl2_init_lowlevel(void)
 {
 	struct dpll_param core = OMAP4_CORE_DPLL_PARAM_19M2_DDR400;
-	struct dpll_param mpu = OMAP4_MPU_DPLL_PARAM_19M2_MPU1000;
+	struct dpll_param mpu44xx = OMAP4_MPU_DPLL_PARAM_19M2_MPU1000;
+	struct dpll_param mpu4460 = OMAP4_MPU_DPLL_PARAM_19M2_MPU920;
 	struct dpll_param iva = OMAP4_IVA_DPLL_PARAM_19M2;
 	struct dpll_param per = OMAP4_PER_DPLL_PARAM_19M2;
 	struct dpll_param abe = OMAP4_ABE_DPLL_PARAM_19M2;
@@ -64,7 +65,11 @@ static noinline void pcaaxl2_init_lowlevel(void)
 	writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
 
 	/* Configure all DPLL's at 100% OPP */
-	omap4_configure_mpu_dpll(&mpu);
+	if (omap4_revision() < OMAP4460_ES1_0)
+		omap4_configure_mpu_dpll(&mpu44xx);
+	else
+		omap4_configure_mpu_dpll(&mpu4460);
+
 	omap4_configure_iva_dpll(&iva);
 	omap4_configure_per_dpll(&per);
 	omap4_configure_abe_dpll(&abe);
diff --git a/arch/arm/boards/phycard-a-xl2/mux.c b/arch/arm/boards/phycard-a-xl2/mux.c
index 179e6b6..dc605e3 100644
--- a/arch/arm/boards/phycard-a-xl2/mux.c
+++ b/arch/arm/boards/phycard-a-xl2/mux.c
@@ -3,6 +3,7 @@
 #include <io.h>
 #include <mach/omap4-silicon.h>
 #include <mach/omap4-mux.h>
+#include <mach/omap4-clock.h>
 
 static const struct pad_conf_entry core_padconf_array[] = {
 	{GPMC_AD0, (IEN | PTD | DIS | M0)},				/* gpmc_ad0 */
@@ -242,4 +243,11 @@ void set_muxconf_regs(void)
 
 	omap4_do_set_mux(OMAP44XX_CONTROL_PADCONF_WKUP, wkup_padconf_array,
 			ARRAY_SIZE(wkup_padconf_array));
+
+	/* gpio_wk7 is used for controlling TPS on 4460 */
+	if (omap4_revision() >= OMAP4460_ES1_0) {
+		writew(M3, OMAP44XX_CONTROL_PADCONF_WKUP + PAD1_FREF_CLK4_REQ);
+		/* Enable GPIO-1 clocks before TPS initialization */
+		omap4_enable_gpio1_wup_clocks();
+	}
 }
diff --git a/arch/arm/mach-omap/include/mach/omap4-clock.h b/arch/arm/mach-omap/include/mach/omap4-clock.h
index 391ee63..e5302d6 100644
--- a/arch/arm/mach-omap/include/mach/omap4-clock.h
+++ b/arch/arm/mach-omap/include/mach/omap4-clock.h
@@ -303,6 +303,8 @@ struct dpll_param {
 #define OMAP4_MPU_DPLL_PARAM_38M4		{0x1a, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
 #define OMAP4_MPU_DPLL_PARAM_38M4_MPU600	{0x7d, 0x07, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
 #define OMAP4_MPU_DPLL_PARAM_38M4_MPU1000	{0x69, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
+/* dpll locked at 1840 MHz MPU clk at 920 MHz(OPP Turbo 4460) - DCC OFF */
+#define OMAP4_MPU_DPLL_PARAM_19M2_MPU920	{0x23F, 0x11, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}
 
 #define OMAP4_IVA_DPLL_PARAM_19M2		{0x61, 0x01, 0x00, 0x00, 0x04, 0x07, 0x00, 0x00}
 #define OMAP4_IVA_DPLL_PARAM_38M4		{0x61, 0x03, 0x00, 0x00, 0x04, 0x07, 0x00, 0x00}
@@ -330,6 +332,8 @@ void omap4_configure_usb_dpll(const struct dpll_param *dpll_param);
 void omap4_configure_core_dpll_no_lock(const struct dpll_param *param);
 void omap4_lock_core_dpll(void);
 void omap4_lock_core_dpll_shadow(const struct dpll_param *param);
+void omap4_enable_gpio1_wup_clocks(void);
+void omap4_enable_gpio_clocks(void);
 void omap4_enable_all_clocks(void);
 void omap4_do_scale_tps62361(u32 reg, u32 volt_mv);
 
diff --git a/arch/arm/mach-omap/omap4_clock.c b/arch/arm/mach-omap/omap4_clock.c
index 564a748..1481f16 100644
--- a/arch/arm/mach-omap/omap4_clock.c
+++ b/arch/arm/mach-omap/omap4_clock.c
@@ -14,6 +14,10 @@ void omap4_configure_mpu_dpll(const struct dpll_param *dpll_param)
 
 	sr32(CM_AUTOIDLE_DPLL_MPU, 0, 3, 0x0); /* Disable DPLL autoidle */
 
+	/* Errata ID: i700, clear CM_CLKSEL_DPLL_MPU[22] : DCC_EN */
+	if (omap4_revision() >= OMAP4460_ES1_0)
+		sr32(CM_CLKSEL_DPLL_MPU, 0, 22, 0);
+
 	/* Set M,N,M2 values */
 	sr32(CM_CLKSEL_DPLL_MPU, 8, 11, dpll_param->m);
 	sr32(CM_CLKSEL_DPLL_MPU, 0, 6, dpll_param->n);
@@ -198,6 +202,27 @@ void omap4_lock_core_dpll_shadow(const struct dpll_param *param)
 	wait_on_value((1 << 0), 1, CM_IDLEST_DPLL_CORE, LDELAY);
 }
 
+void omap4_enable_gpio_clocks(void)
+{
+	sr32(CM_L4PER_GPIO2_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO2_CLKCTRL, LDELAY);
+	sr32(CM_L4PER_GPIO3_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO3_CLKCTRL, LDELAY);
+	sr32(CM_L4PER_GPIO4_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO4_CLKCTRL, LDELAY);
+	sr32(CM_L4PER_GPIO5_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO5_CLKCTRL, LDELAY);
+	sr32(CM_L4PER_GPIO6_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO6_CLKCTRL, LDELAY);
+}
+
+void omap4_enable_gpio1_wup_clocks(void)
+{
+	/* WKUP clocks */
+	sr32(CM_WKUP_GPIO1_CLKCTRL, 0, 32, 0x1);
+	wait_on_value((1 << 17)|(1 << 16), 0, CM_WKUP_GPIO1_CLKCTRL, LDELAY);
+}
+
 void omap4_enable_all_clocks(void)
 {
 	/* Enable Ducati clocks */
@@ -255,16 +280,7 @@ void omap4_enable_all_clocks(void)
 	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_DMTIMER9_CLKCTRL, LDELAY);
 
 	/* GPIO clocks */
-	sr32(CM_L4PER_GPIO2_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO2_CLKCTRL, LDELAY);
-	sr32(CM_L4PER_GPIO3_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO3_CLKCTRL, LDELAY);
-	sr32(CM_L4PER_GPIO4_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO4_CLKCTRL, LDELAY);
-	sr32(CM_L4PER_GPIO5_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO5_CLKCTRL, LDELAY);
-	sr32(CM_L4PER_GPIO6_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_GPIO6_CLKCTRL, LDELAY);
+	omap4_enable_gpio_clocks();
 
 	sr32(CM_L4PER_HDQ1W_CLKCTRL, 0, 32, 0x2);
 
@@ -314,8 +330,7 @@ void omap4_enable_all_clocks(void)
 	wait_on_value((1 << 17)|(1 << 16), 0, CM_L4PER_UART4_CLKCTRL, LDELAY);
 
 	/* WKUP clocks */
-	sr32(CM_WKUP_GPIO1_CLKCTRL, 0, 32, 0x1);
-	wait_on_value((1 << 17)|(1 << 16), 0, CM_WKUP_GPIO1_CLKCTRL, LDELAY);
+	omap4_enable_gpio1_wup_clocks();
 	sr32(CM_WKUP_TIMER1_CLKCTRL, 0, 32, 0x01000002);
 	wait_on_value((1 << 17)|(1 << 16), 0, CM_WKUP_TIMER1_CLKCTRL, LDELAY);
 
-- 
1.7.0.4


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Re: [PATCH 0/3 v2] omap: 4460 support

[Sascha Hauer]

On Tue, Aug 14, 2012 at 09:04:30AM +0200, Jan Weitzel wrote:
> Add support for OMAP4460 cpu
> on top of ed358834 (next)
> 
> v2: merge usage of omap4_scale_vcores to 1/3
>     avoid volatile int*

Applied, thanks

Sascha

> 
> 
> Jan Weitzel (3):
>   Add support for OMAP4460 TPS62361
>   OMAP4460: ram init changes
>   OMAP4460: clock init
> 
>  arch/arm/boards/panda/lowlevel.c                |    4 +-
>  arch/arm/boards/panda/mux.c                     |    8 +++
>  arch/arm/boards/pcm049/lowlevel.c               |   15 ++++--
>  arch/arm/boards/pcm049/mux.c                    |    8 +++
>  arch/arm/boards/phycard-a-xl2/lowlevel.c        |   13 ++++-
>  arch/arm/boards/phycard-a-xl2/mux.c             |    8 +++
>  arch/arm/mach-omap/include/mach/omap4-clock.h   |   19 +++++++
>  arch/arm/mach-omap/include/mach/omap4-silicon.h |   13 +++++-
>  arch/arm/mach-omap/omap4_clock.c                |   58 +++++++++++++++++-----
>  arch/arm/mach-omap/omap4_generic.c              |   60 +++++++++++++++++++++--
>  10 files changed, 181 insertions(+), 25 deletions(-)
> 
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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