Merge branch 'master' of git://git.denx.de/u-boot-ti

5 files changed, 116 insertions, 42 deletions

diff --git a/arch/arm/cpu/arm926ejs/davinci/spl.c b/arch/arm/cpu/arm926ejs/davinci/spl.c
index 59b304efcb..49349da179 100644
--- a/arch/arm/cpu/arm926ejs/davinci/spl.c
+++ b/arch/arm/cpu/arm926ejs/davinci/spl.c
@@ -34,29 +34,14 @@ void putc(char c)
 }
 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
 
-void board_init_f(ulong dummy)
+void spl_board_init(void)
 {
-	/* First, setup our stack pointer. */
-	asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
-
-	/* Second, perform our low-level init. */
 #ifdef CONFIG_SOC_DM365
 	dm36x_lowlevel_init(0);
 #endif
 #ifdef CONFIG_SOC_DA8XX
 	arch_cpu_init();
 #endif
-
-	/* Third, we clear the BSS. */
-	memset(__bss_start, 0, __bss_end - __bss_start);
-
-	/* Finally, setup gd and move to the next step. */
-	gd = &gdata;
-	board_init_r(NULL, 0);
-}
-
-void spl_board_init(void)
-{
 	preloader_console_init();
 }
 
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 8e7411d437..03674e609f 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -437,12 +437,15 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
 {
 	u32 offset_code;
 	u32 offset = volt_mv;
+#ifndef	CONFIG_DRA7XX
 	int ret = 0;
+#endif
 
 	if (!volt_mv)
 		return;
 
 	pmic->pmic_bus_init();
+#ifndef	CONFIG_DRA7XX
 	/* See if we can first get the GPIO if needed */
 	if (pmic->gpio_en)
 		ret = gpio_request(pmic->gpio, "PMIC_GPIO");
@@ -456,7 +459,7 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
 	/* Pull the GPIO low to select SET0 register, while we program SET1 */
 	if (pmic->gpio_en)
 		gpio_direction_output(pmic->gpio, 0);
-
+#endif
 	/* convert to uV for better accuracy in the calculations */
 	offset *= 1000;
 
@@ -467,9 +470,10 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
 
 	if (pmic->pmic_write(pmic->i2c_slave_addr, vcore_reg, offset_code))
 		printf("Scaling voltage failed for 0x%x\n", vcore_reg);
-
+#ifndef	CONFIG_DRA7XX
 	if (pmic->gpio_en)
 		gpio_direction_output(pmic->gpio, 1);
+#endif
 }
 
 static u32 optimize_vcore_voltage(struct volts const *v)
@@ -505,13 +509,79 @@ static u32 optimize_vcore_voltage(struct volts const *v)
 }
 
 /*
- * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
- * We set the maximum voltages allowed here because Smart-Reflex is not
- * enabled in bootloader. Voltage initialization in the kernel will set
- * these to the nominal values after enabling Smart-Reflex
+ * Setup the voltages for the main SoC core power domains.
+ * We start with the maximum voltages allowed here, as set in the corresponding
+ * vcores_data struct, and then scale (usually down) to the fused values that
+ * are retrieved from the SoC. The scaling happens only if the efuse.reg fields
+ * are initialised.
+ * Rail grouping is supported for the DRA7xx SoCs only, therefore the code is
+ * compiled conditionally. Note that the new code writes the scaled (or zeroed)
+ * values back to the vcores_data struct for eventual reuse. Zero values mean
+ * that the corresponding rails are not controlled separately, and are not sent
+ * to the PMIC.
  */
 void scale_vcores(struct vcores_data const *vcores)
 {
+#if defined(CONFIG_DRA7XX)
+	int i;
+	struct volts *pv = (struct volts *)vcores;
+	struct volts *px;
+
+	for (i=0; i<(sizeof(struct vcores_data)/sizeof(struct volts)); i++) {
+		debug("%d -> ", pv->value);
+		if (pv->value) {
+			/* Handle non-empty members only */
+			pv->value = optimize_vcore_voltage(pv);
+     			px = (struct volts *)vcores;
+			while (px < pv) {
+				/*
+				 * Scan already handled non-empty members to see
+				 * if we have a group and find the max voltage,
+				 * which is set to the first occurance of the
+				 * particular SMPS; the other group voltages are
+				 * zeroed.
+				 */
+				if (px->value) {
+					if ((pv->pmic->i2c_slave_addr ==
+					     px->pmic->i2c_slave_addr) &&
+					    (pv->addr == px->addr)) {
+					    	/* Same PMIC, same SMPS */
+						if (pv->value > px->value)
+							px->value = pv->value;
+
+						pv->value = 0;
+					}
+		     		}
+				px++;
+			}
+		}
+	     	debug("%d\n", pv->value);
+		pv++;
+	}
+
+	debug("cor: %d\n", vcores->core.value);
+	do_scale_vcore(vcores->core.addr, vcores->core.value, vcores->core.pmic);
+	debug("mpu: %d\n", vcores->mpu.value);
+	do_scale_vcore(vcores->mpu.addr, vcores->mpu.value, vcores->mpu.pmic);
+	/* Configure MPU ABB LDO after scale */
+	abb_setup((*ctrl)->control_std_fuse_opp_vdd_mpu_2,
+		  (*ctrl)->control_wkup_ldovbb_mpu_voltage_ctrl,
+		  (*prcm)->prm_abbldo_mpu_setup,
+		  (*prcm)->prm_abbldo_mpu_ctrl,
+		  (*prcm)->prm_irqstatus_mpu_2,
+		  OMAP_ABB_MPU_TXDONE_MASK,
+		  OMAP_ABB_FAST_OPP);
+
+	/* The .mm member is not used for the DRA7xx */
+
+	debug("gpu: %d\n", vcores->gpu.value);
+	do_scale_vcore(vcores->gpu.addr, vcores->gpu.value, vcores->gpu.pmic);
+	debug("eve: %d\n", vcores->eve.value);
+	do_scale_vcore(vcores->eve.addr, vcores->eve.value, vcores->eve.pmic);
+	debug("iva: %d\n", vcores->iva.value);
+	do_scale_vcore(vcores->iva.addr, vcores->iva.value, vcores->iva.pmic);
+	/* Might need udelay(1000) here if debug is enabled to see all prints */
+#else
 	u32 val;
 
 	val = optimize_vcore_voltage(&vcores->core);
@@ -540,6 +610,7 @@ void scale_vcores(struct vcores_data const *vcores)
 
 	val = optimize_vcore_voltage(&vcores->iva);
 	do_scale_vcore(vcores->iva.addr, val, vcores->iva.pmic);
+#endif
 }
 
 static inline void enable_clock_domain(u32 const clkctrl_reg, u32 enable_mode)
diff --git a/arch/arm/cpu/armv7/omap3/clock.c b/arch/arm/cpu/armv7/omap3/clock.c
index 529ad9a942..006969e780 100644
--- a/arch/arm/cpu/armv7/omap3/clock.c
+++ b/arch/arm/cpu/armv7/omap3/clock.c
@@ -732,11 +732,20 @@ void per_clocks_enable(void)
 	setbits_le32(&prcm_base->iclken_per, 0x08);	/* ICKen GPT2 */
 	setbits_le32(&prcm_base->fclken_per, 0x08);	/* FCKen GPT2 */
 
+	/* Enable GP9 timer. */
+	setbits_le32(&prcm_base->clksel_per, 0x80);	/* GPT9 = 32kHz clk */
+	setbits_le32(&prcm_base->iclken_per, 0x400);	/* ICKen GPT9 */
+	setbits_le32(&prcm_base->fclken_per, 0x400);	/* FCKen GPT9 */
+
 #ifdef CONFIG_SYS_NS16550
 	/* Enable UART1 clocks */
 	setbits_le32(&prcm_base->fclken1_core, 0x00002000);
 	setbits_le32(&prcm_base->iclken1_core, 0x00002000);
 
+	/* Enable UART2 clocks */
+	setbits_le32(&prcm_base->fclken1_core, 0x00004000);
+	setbits_le32(&prcm_base->iclken1_core, 0x00004000);
+
 	/* UART 3 Clocks */
 	setbits_le32(&prcm_base->fclken_per, 0x00000800);
 	setbits_le32(&prcm_base->iclken_per, 0x00000800);
diff --git a/arch/arm/cpu/armv7/omap3/sdrc.c b/arch/arm/cpu/armv7/omap3/sdrc.c
index 7a291318ab..4f15ac9cb5 100644
--- a/arch/arm/cpu/armv7/omap3/sdrc.c
+++ b/arch/arm/cpu/armv7/omap3/sdrc.c
@@ -135,6 +135,9 @@ void do_sdrc_init(u32 cs, u32 early)
 	sdrc_actim_base0 = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE;
 	sdrc_actim_base1 = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE;
 
+	/* set some default timings */
+	timings.sharing = SDRC_SHARING;
+
 	/*
 	 * When called in the early context this may be SPL and we will
 	 * need to set all of the timings.  This ends up being board
@@ -145,6 +148,7 @@ void do_sdrc_init(u32 cs, u32 early)
 	 * setup CS1.
 	 */
 #ifdef CONFIG_SPL_BUILD
+	/* set/modify board-specific timings */
 	get_board_mem_timings(&timings);
 #endif
 	if (early) {
@@ -155,7 +159,7 @@ void do_sdrc_init(u32 cs, u32 early)
 		writel(0, &sdrc_base->sysconfig);
 
 		/* setup sdrc to ball mux */
-		writel(SDRC_SHARING, &sdrc_base->sharing);
+		writel(timings.sharing, &sdrc_base->sharing);
 
 		/* Disable Power Down of CKE because of 1 CKE on combo part */
 		writel(WAKEUPPROC | SRFRONRESET | PAGEPOLICY_HIGH,
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 95f16866e6..b9734fea8f 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -320,6 +320,7 @@ struct pmic_data palmas = {
 	.pmic_write	= omap_vc_bypass_send_value,
 };
 
+/* The TPS659038 and TPS65917 are software-compatible, use common struct */
 struct pmic_data tps659038 = {
 	.base_offset = PALMAS_SMPS_BASE_VOLT_UV,
 	.step = 10000, /* 10 mV represented in uV */
@@ -394,34 +395,38 @@ struct vcores_data dra752_volts = {
 };
 
 struct vcores_data dra722_volts = {
-	.mpu.value	= 1000,
+	.mpu.value	= VDD_MPU_DRA72x,
 	.mpu.efuse.reg	= STD_FUSE_OPP_VMIN_MPU_NOM,
-	.mpu.efuse.reg_bits	= DRA752_EFUSE_REGBITS,
-	.mpu.addr	= 0x23,
+	.mpu.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+	.mpu.addr	= TPS65917_REG_ADDR_SMPS1,
 	.mpu.pmic	= &tps659038,
 
-	.eve.value	= 1000,
-	.eve.efuse.reg	= STD_FUSE_OPP_VMIN_DSPEVE_NOM,
-	.eve.efuse.reg_bits	= DRA752_EFUSE_REGBITS,
-	.eve.addr	= 0x2f,
-	.eve.pmic	= &tps659038,
+	.core.value	= VDD_CORE_DRA72x,
+	.core.efuse.reg	= STD_FUSE_OPP_VMIN_CORE_NOM,
+	.core.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+	.core.addr	= TPS65917_REG_ADDR_SMPS2,
+	.core.pmic	= &tps659038,
 
-	.gpu.value	= 1000,
+	/*
+	 * The DSPEVE, GPU and IVA rails are usually grouped on DRA72x
+	 * designs and powered by TPS65917 SMPS3, as on the J6Eco EVM.
+	 */
+	.gpu.value	= VDD_GPU_DRA72x,
 	.gpu.efuse.reg	= STD_FUSE_OPP_VMIN_GPU_NOM,
-	.gpu.efuse.reg_bits	= DRA752_EFUSE_REGBITS,
-	.gpu.addr	= 0x2f,
+	.gpu.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+	.gpu.addr	= TPS65917_REG_ADDR_SMPS3,
 	.gpu.pmic	= &tps659038,
 
-	.core.value	= 1000,
-	.core.efuse.reg	= STD_FUSE_OPP_VMIN_CORE_NOM,
-	.core.efuse.reg_bits = DRA752_EFUSE_REGBITS,
-	.core.addr	= 0x27,
-	.core.pmic	= &tps659038,
+	.eve.value	= VDD_EVE_DRA72x,
+	.eve.efuse.reg	= STD_FUSE_OPP_VMIN_DSPEVE_NOM,
+	.eve.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+	.eve.addr	= TPS65917_REG_ADDR_SMPS3,
+	.eve.pmic	= &tps659038,
 
-	.iva.value	= 1000,
+	.iva.value	= VDD_IVA_DRA72x,
 	.iva.efuse.reg	= STD_FUSE_OPP_VMIN_IVA_NOM,
-	.iva.efuse.reg_bits	= DRA752_EFUSE_REGBITS,
-	.iva.addr	= 0x2f,
+	.iva.efuse.reg_bits = DRA752_EFUSE_REGBITS,
+	.iva.addr	= TPS65917_REG_ADDR_SMPS3,
 	.iva.pmic	= &tps659038,
 };