Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'

Conflicts:
	drivers/serial/serial.c

The conflict above was a trivial case of adding one init
function in each branch, and manually resolved in merge.

6 files changed, 153 insertions, 9 deletions

diff --git a/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg b/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
new file mode 100644
index 0000000..8118767
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
@@ -0,0 +1,6 @@
+SECTION 0x0 BOOTABLE
+ TAG LAST
+ LOAD     0x0        spl/u-boot-spl.bin
+ CALL     0x14       0x0
+ LOAD     0x40000100 u-boot.bin
+ CALL     0x40000100 0x0
diff --git a/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg b/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg
new file mode 100644
index 0000000..ea772f0
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg
@@ -0,0 +1,8 @@
+SECTION 0x0 BOOTABLE
+ TAG LAST
+ LOAD     0x0        spl/u-boot-spl.bin
+ LOAD IVT 0x8000     0x14
+ CALL HAB 0x8000     0x0
+ LOAD     0x40000100 u-boot.bin
+ LOAD IVT 0x8000     0x40000100
+ CALL HAB 0x8000     0x0
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
index e3b6cd9..f357959 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
@@ -36,7 +36,7 @@ static void mxs_power_clock2pll(void)
 			CLKCTRL_CLKSEQ_BYPASS_CPU);
 }
 
-static void mxs_power_clear_auto_restart(void)
+static void mxs_power_set_auto_restart(void)
 {
 	struct mxs_rtc_regs *rtc_regs =
 		(struct mxs_rtc_regs *)MXS_RTC_BASE;
@@ -49,10 +49,7 @@ static void mxs_power_clear_auto_restart(void)
 	while (readl(&rtc_regs->hw_rtc_ctrl) & RTC_CTRL_CLKGATE)
 		;
 
-	/*
-	 * Due to the hardware design bug of mx28 EVK-A
-	 * we need to set the AUTO_RESTART bit.
-	 */
+	/* Do nothing if flag already set */
 	if (readl(&rtc_regs->hw_rtc_persistent0) & RTC_PERSISTENT0_AUTO_RESTART)
 		return;
 
@@ -911,7 +908,7 @@ void mxs_power_init(void)
 	mxs_ungate_power();
 
 	mxs_power_clock2xtal();
-	mxs_power_clear_auto_restart();
+	mxs_power_set_auto_restart();
 	mxs_power_set_linreg();
 	mxs_power_setup_5v_detect();
 
diff --git a/arch/arm/cpu/armv7/mx6/Makefile b/arch/arm/cpu/armv7/mx6/Makefile
index c5e9858..6d73617 100644
--- a/arch/arm/cpu/armv7/mx6/Makefile
+++ b/arch/arm/cpu/armv7/mx6/Makefile
@@ -11,10 +11,11 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(SOC).o
 
-COBJS	= soc.o clock.o
+COBJS-y	= soc.o clock.o
+COBJS-$(CONFIG_SECURE_BOOT)	+= hab.o
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
 
 all:	$(obj).depend $(LIB)
 
diff --git a/arch/arm/cpu/armv7/mx6/hab.c b/arch/arm/cpu/armv7/mx6/hab.c
new file mode 100644
index 0000000..5187775
--- /dev/null
+++ b/arch/arm/cpu/armv7/mx6/hab.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hab.h>
+
+/* -------- start of HAB API updates ------------*/
+#define hab_rvt_report_event ((hab_rvt_report_event_t *)HAB_RVT_REPORT_EVENT)
+#define hab_rvt_report_status ((hab_rvt_report_status_t *)HAB_RVT_REPORT_STATUS)
+#define hab_rvt_authenticate_image \
+	((hab_rvt_authenticate_image_t *)HAB_RVT_AUTHENTICATE_IMAGE)
+#define hab_rvt_entry ((hab_rvt_entry_t *)HAB_RVT_ENTRY)
+#define hab_rvt_exit ((hab_rvt_exit_t *)HAB_RVT_EXIT)
+#define hab_rvt_clock_init HAB_RVT_CLOCK_INIT
+
+bool is_hab_enabled(void)
+{
+	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+	struct fuse_bank *bank = &ocotp->bank[0];
+	struct fuse_bank0_regs *fuse =
+		(struct fuse_bank0_regs *)bank->fuse_regs;
+	uint32_t reg = readl(&fuse->cfg5);
+
+	return (reg & 0x2) == 0x2;
+}
+
+void display_event(uint8_t *event_data, size_t bytes)
+{
+	uint32_t i;
+
+	if (!(event_data && bytes > 0))
+		return;
+
+	for (i = 0; i < bytes; i++) {
+		if (i == 0)
+			printf("\t0x%02x", event_data[i]);
+		else if ((i % 8) == 0)
+			printf("\n\t0x%02x", event_data[i]);
+		else
+			printf(" 0x%02x", event_data[i]);
+	}
+}
+
+int get_hab_status(void)
+{
+	uint32_t index = 0; /* Loop index */
+	uint8_t event_data[128]; /* Event data buffer */
+	size_t bytes = sizeof(event_data); /* Event size in bytes */
+	enum hab_config config = 0;
+	enum hab_state state = 0;
+
+	if (is_hab_enabled())
+		puts("\nSecure boot enabled\n");
+	else
+		puts("\nSecure boot disabled\n");
+
+	/* Check HAB status */
+	if (hab_rvt_report_status(&config, &state) != HAB_SUCCESS) {
+		printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
+		       config, state);
+
+		/* Display HAB Error events */
+		while (hab_rvt_report_event(HAB_FAILURE, index, event_data,
+					&bytes) == HAB_SUCCESS) {
+			puts("\n");
+			printf("--------- HAB Event %d -----------------\n",
+			       index + 1);
+			puts("event data:\n");
+			display_event(event_data, bytes);
+			puts("\n");
+			bytes = sizeof(event_data);
+			index++;
+		}
+	}
+	/* Display message if no HAB events are found */
+	else {
+		printf("\nHAB Configuration: 0x%02x, HAB State: 0x%02x\n",
+		       config, state);
+		puts("No HAB Events Found!\n\n");
+	}
+	return 0;
+}
+
+int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	if ((argc != 1)) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	get_hab_status();
+
+	return 0;
+}
+
+U_BOOT_CMD(
+		hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
+		"display HAB status",
+		""
+	  );
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 8150bff..a390296 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -213,6 +213,34 @@ const struct boot_mode soc_boot_modes[] = {
 
 void s_init(void)
 {
+	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
+	int is_6q = is_cpu_type(MXC_CPU_MX6Q);
+	u32 mask480;
+	u32 mask528;
+
+	/* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs
+	 * to make sure PFD is working right, otherwise, PFDs may
+	 * not output clock after reset, MX6DL and MX6SL have added 396M pfd
+	 * workaround in ROM code, as bus clock need it
+	 */
+
+	mask480 = ANATOP_PFD_CLKGATE_MASK(0) |
+		ANATOP_PFD_CLKGATE_MASK(1) |
+		ANATOP_PFD_CLKGATE_MASK(2) |
+		ANATOP_PFD_CLKGATE_MASK(3);
+	mask528 = ANATOP_PFD_CLKGATE_MASK(0) |
+		ANATOP_PFD_CLKGATE_MASK(1) |
+		ANATOP_PFD_CLKGATE_MASK(3);
+
+	/*
+	 * Don't reset PFD2 on DL/S
+	 */
+	if (is_6q)
+		mask528 |= ANATOP_PFD_CLKGATE_MASK(2);
+	writel(mask480, &anatop->pfd_480_set);
+	writel(mask528, &anatop->pfd_528_set);
+	writel(mask480, &anatop->pfd_480_clr);
+	writel(mask528, &anatop->pfd_528_clr);
 }
 
 #ifdef CONFIG_IMX_HDMI