Merge remote-tracking branch 'u-boot-imx/master'

The single file conflict below is actually trivial.

Conflicts:
	board/boundary/nitrogen6x/nitrogen6x.c

3 files changed, 226 insertions, 9 deletions

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 336e557a27..d200531030 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -642,6 +642,33 @@ int enable_pcie_clock(void)
 			       BM_ANADIG_PLL_ENET_ENABLE_PCIE);
 }
 
+#ifdef CONFIG_SECURE_BOOT
+void hab_caam_clock_enable(unsigned char enable)
+{
+	u32 reg;
+
+	/* CG4 ~ CG6, CAAM clocks */
+	reg = __raw_readl(&imx_ccm->CCGR0);
+	if (enable)
+		reg |= (MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK |
+			MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK |
+			MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK);
+	else
+		reg &= ~(MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK |
+			MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK |
+			MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK);
+	__raw_writel(reg, &imx_ccm->CCGR0);
+
+	/* EMI slow clk */
+	reg = __raw_readl(&imx_ccm->CCGR6);
+	if (enable)
+		reg |= MXC_CCM_CCGR6_EMI_SLOW_MASK;
+	else
+		reg &= ~MXC_CCM_CCGR6_EMI_SLOW_MASK;
+	__raw_writel(reg, &imx_ccm->CCGR6);
+}
+#endif
+
 unsigned int mxc_get_clock(enum mxc_clock clk)
 {
 	switch (clk) {
diff --git a/arch/arm/cpu/armv7/mx6/hab.c b/arch/arm/cpu/armv7/mx6/hab.c
index f6810a680d..8dee595eaf 100644
--- a/arch/arm/cpu/armv7/mx6/hab.c
+++ b/arch/arm/cpu/armv7/mx6/hab.c
@@ -1,12 +1,14 @@
 /*
- * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2010-2014 Freescale Semiconductor, Inc.
  *
  * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <asm/io.h>
+#include <asm/system.h>
 #include <asm/arch/hab.h>
+#include <asm/arch/clock.h>
 #include <asm/arch/sys_proto.h>
 
 /* -------- start of HAB API updates ------------*/
@@ -71,6 +73,44 @@
 	((hab_rvt_exit_t *)HAB_RVT_EXIT)			\
 )
 
+#define IVT_SIZE		0x20
+#define ALIGN_SIZE		0x1000
+#define CSF_PAD_SIZE		0x2000
+#define MX6DQ_PU_IROM_MMU_EN_VAR	0x009024a8
+#define MX6DLS_PU_IROM_MMU_EN_VAR	0x00901dd0
+#define MX6SL_PU_IROM_MMU_EN_VAR	0x00900a18
+
+/*
+ * +------------+  0x0 (DDR_UIMAGE_START) -
+ * |   Header   |                          |
+ * +------------+  0x40                    |
+ * |            |                          |
+ * |            |                          |
+ * |            |                          |
+ * |            |                          |
+ * | Image Data |                          |
+ * .            |                          |
+ * .            |                           > Stuff to be authenticated ----+
+ * .            |                          |                                |
+ * |            |                          |                                |
+ * |            |                          |                                |
+ * +------------+                          |                                |
+ * |            |                          |                                |
+ * | Fill Data  |                          |                                |
+ * |            |                          |                                |
+ * +------------+ Align to ALIGN_SIZE      |                                |
+ * |    IVT     |                          |                                |
+ * +------------+ + IVT_SIZE              -                                 |
+ * |            |                                                           |
+ * |  CSF DATA  | <---------------------------------------------------------+
+ * |            |
+ * +------------+
+ * |            |
+ * | Fill Data  |
+ * |            |
+ * +------------+ + CSF_PAD_SIZE
+ */
+
 bool is_hab_enabled(void)
 {
 	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
@@ -144,6 +184,108 @@ int get_hab_status(void)
 	return 0;
 }
 
+uint32_t authenticate_image(uint32_t ddr_start, uint32_t image_size)
+{
+	uint32_t load_addr = 0;
+	size_t bytes;
+	ptrdiff_t ivt_offset = 0;
+	int result = 0;
+	ulong start;
+	hab_rvt_authenticate_image_t *hab_rvt_authenticate_image;
+	hab_rvt_entry_t *hab_rvt_entry;
+	hab_rvt_exit_t *hab_rvt_exit;
+
+	hab_rvt_authenticate_image = hab_rvt_authenticate_image_p;
+	hab_rvt_entry = hab_rvt_entry_p;
+	hab_rvt_exit = hab_rvt_exit_p;
+
+	if (is_hab_enabled()) {
+		printf("\nAuthenticate image from DDR location 0x%x...\n",
+		       ddr_start);
+
+		hab_caam_clock_enable(1);
+
+		if (hab_rvt_entry() == HAB_SUCCESS) {
+			/* If not already aligned, Align to ALIGN_SIZE */
+			ivt_offset = (image_size + ALIGN_SIZE - 1) &
+					~(ALIGN_SIZE - 1);
+
+			start = ddr_start;
+			bytes = ivt_offset + IVT_SIZE + CSF_PAD_SIZE;
+#ifdef DEBUG
+			printf("\nivt_offset = 0x%x, ivt addr = 0x%x\n",
+			       ivt_offset, ddr_start + ivt_offset);
+			puts("Dumping IVT\n");
+			print_buffer(ddr_start + ivt_offset,
+				     (void *)(ddr_start + ivt_offset),
+				     4, 0x8, 0);
+
+			puts("Dumping CSF Header\n");
+			print_buffer(ddr_start + ivt_offset+IVT_SIZE,
+				     (void *)(ddr_start + ivt_offset+IVT_SIZE),
+				     4, 0x10, 0);
+
+			get_hab_status();
+
+			puts("\nCalling authenticate_image in ROM\n");
+			printf("\tivt_offset = 0x%x\n", ivt_offset);
+			printf("\tstart = 0x%08lx\n", start);
+			printf("\tbytes = 0x%x\n", bytes);
+#endif
+			/*
+			 * If the MMU is enabled, we have to notify the ROM
+			 * code, or it won't flush the caches when needed.
+			 * This is done, by setting the "pu_irom_mmu_enabled"
+			 * word to 1. You can find its address by looking in
+			 * the ROM map. This is critical for
+			 * authenticate_image(). If MMU is enabled, without
+			 * setting this bit, authentication will fail and may
+			 * crash.
+			 */
+			/* Check MMU enabled */
+			if (get_cr() & CR_M) {
+				if (is_cpu_type(MXC_CPU_MX6Q) ||
+				    is_cpu_type(MXC_CPU_MX6D)) {
+					/*
+					 * This won't work on Rev 1.0.0 of
+					 * i.MX6Q/D, since their ROM doesn't
+					 * do cache flushes. don't think any
+					 * exist, so we ignore them.
+					 */
+					writel(1, MX6DQ_PU_IROM_MMU_EN_VAR);
+				} else if (is_cpu_type(MXC_CPU_MX6DL) ||
+					   is_cpu_type(MXC_CPU_MX6SOLO)) {
+					writel(1, MX6DLS_PU_IROM_MMU_EN_VAR);
+				} else if (is_cpu_type(MXC_CPU_MX6SL)) {
+					writel(1, MX6SL_PU_IROM_MMU_EN_VAR);
+				}
+			}
+
+			load_addr = (uint32_t)hab_rvt_authenticate_image(
+					HAB_CID_UBOOT,
+					ivt_offset, (void **)&start,
+					(size_t *)&bytes, NULL);
+			if (hab_rvt_exit() != HAB_SUCCESS) {
+				puts("hab exit function fail\n");
+				load_addr = 0;
+			}
+		} else {
+			puts("hab entry function fail\n");
+		}
+
+		hab_caam_clock_enable(0);
+
+		get_hab_status();
+	} else {
+		puts("hab fuse not enabled\n");
+	}
+
+	if ((!is_hab_enabled()) || (load_addr != 0))
+		result = 1;
+
+	return result;
+}
+
 int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if ((argc != 1)) {
@@ -156,8 +298,33 @@ int do_hab_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
+static int do_authenticate_image(cmd_tbl_t *cmdtp, int flag, int argc,
+				char * const argv[])
+{
+	ulong	addr, ivt_offset;
+	int	rcode = 0;
+
+	if (argc < 3)
+		return CMD_RET_USAGE;
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+	ivt_offset = simple_strtoul(argv[2], NULL, 16);
+
+	rcode = authenticate_image(addr, ivt_offset);
+
+	return rcode;
+}
+
 U_BOOT_CMD(
 		hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
 		"display HAB status",
 		""
 	  );
+
+U_BOOT_CMD(
+		hab_auth_img, 3, 0, do_authenticate_image,
+		"authenticate image via HAB",
+		"addr ivt_offset\n"
+		"addr - image hex address\n"
+		"ivt_offset - hex offset of IVT in the image"
+	  );
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index ba21cfe580..6352422253 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -273,10 +273,25 @@ int board_postclk_init(void)
 #ifndef CONFIG_SYS_DCACHE_OFF
 void enable_caches(void)
 {
+#if defined(CONFIG_SYS_ARM_CACHE_WRITETHROUGH)
+	enum dcache_option option = DCACHE_WRITETHROUGH;
+#else
+	enum dcache_option option = DCACHE_WRITEBACK;
+#endif
+
 	/* Avoid random hang when download by usb */
 	invalidate_dcache_all();
+
 	/* Enable D-cache. I-cache is already enabled in start.S */
 	dcache_enable();
+
+	/* Enable caching on OCRAM and ROM */
+	mmu_set_region_dcache_behaviour(ROMCP_ARB_BASE_ADDR,
+					ROMCP_ARB_END_ADDR,
+					option);
+	mmu_set_region_dcache_behaviour(IRAM_BASE_ADDR,
+					IRAM_SIZE,
+					option);
 }
 #endif
 
@@ -339,10 +354,10 @@ 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);
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 	u32 mask480;
 	u32 mask528;
-
+	u32 reg, periph1, periph2;
 
 	if (is_cpu_type(MXC_CPU_MX6SX))
 		return;
@@ -357,15 +372,23 @@ void s_init(void)
 		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) |
+	mask528 = ANATOP_PFD_CLKGATE_MASK(1) |
 		ANATOP_PFD_CLKGATE_MASK(3);
 
-	/*
-	 * Don't reset PFD2 on DL/S
-	 */
-	if (is_6q)
+	reg = readl(&ccm->cbcmr);
+	periph2 = ((reg & MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_MASK)
+		>> MXC_CCM_CBCMR_PRE_PERIPH2_CLK_SEL_OFFSET);
+	periph1 = ((reg & MXC_CCM_CBCMR_PRE_PERIPH_CLK_SEL_MASK)
+		>> MXC_CCM_CBCMR_PRE_PERIPH_CLK_SEL_OFFSET);
+
+	/* Checking if PLL2 PFD0 or PLL2 PFD2 is using for periph clock */
+	if ((periph2 != 0x2) && (periph1 != 0x2))
+		mask528 |= ANATOP_PFD_CLKGATE_MASK(0);
+
+	if ((periph2 != 0x1) && (periph1 != 0x1) &&
+		(periph2 != 0x3) && (periph1 != 0x3))
 		mask528 |= ANATOP_PFD_CLKGATE_MASK(2);
+
 	writel(mask480, &anatop->pfd_480_set);
 	writel(mask528, &anatop->pfd_528_set);
 	writel(mask480, &anatop->pfd_480_clr);