Merge branch 'u-boot-microblaze/zynq' into 'u-boot-arm/master'

4 files changed, 112 insertions, 8 deletions

diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c
index 7626b5c..816d0c5 100644
--- a/arch/arm/cpu/armv7/zynq/cpu.c
+++ b/arch/arm/cpu/armv7/zynq/cpu.c
@@ -14,6 +14,9 @@ void lowlevel_init(void)
 {
 }
 
+#define ZYNQ_SILICON_VER_MASK	0xF0000000
+#define ZYNQ_SILICON_VER_SHIFT	28
+
 int arch_cpu_init(void)
 {
 	zynq_slcr_unlock();
@@ -42,6 +45,16 @@ int arch_cpu_init(void)
 	return 0;
 }
 
+unsigned int zynq_get_silicon_version(void)
+{
+	unsigned int ver;
+
+	ver = (readl(&devcfg_base->mctrl) &
+	       ZYNQ_SILICON_VER_MASK) >> ZYNQ_SILICON_VER_SHIFT;
+
+	return ver;
+}
+
 void reset_cpu(ulong addr)
 {
 	zynq_slcr_cpu_reset();
diff --git a/arch/arm/cpu/armv7/zynq/ddrc.c b/arch/arm/cpu/armv7/zynq/ddrc.c
index ba6a6ae..e0ed3bf 100644
--- a/arch/arm/cpu/armv7/zynq/ddrc.c
+++ b/arch/arm/cpu/armv7/zynq/ddrc.c
@@ -40,11 +40,8 @@ void zynq_ddrc_init(void)
 		 * first stage bootloader. To get ECC to work all memory has
 		 * been initialized by writing any value.
 		 */
-		memset(0, 0, 1 * 1024 * 1024);
+		memset((void *)0, 0, 1 * 1024 * 1024);
 	} else {
 		puts("Memory: ECC disabled\n");
 	}
-
-	if (width == ZYNQ_DDRC_CTRLREG_BUSWIDTH_16BIT)
-		gd->ram_size /= 2;
 }
diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c
index d7c1882..934ccc3 100644
--- a/arch/arm/cpu/armv7/zynq/slcr.c
+++ b/arch/arm/cpu/armv7/zynq/slcr.c
@@ -8,26 +8,75 @@
 #include <asm/io.h>
 #include <malloc.h>
 #include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
 #include <asm/arch/clk.h>
 
 #define SLCR_LOCK_MAGIC		0x767B
 #define SLCR_UNLOCK_MAGIC	0xDF0D
 
+#define SLCR_USB_L1_SEL			0x04
+
 #define SLCR_IDCODE_MASK	0x1F000
 #define SLCR_IDCODE_SHIFT	12
 
+/*
+ * zynq_slcr_mio_get_status - Get the status of MIO peripheral.
+ *
+ * @peri_name: Name of the peripheral for checking MIO status
+ * @get_pins: Pointer to array of get pin for this peripheral
+ * @num_pins: Number of pins for this peripheral
+ * @mask: Mask value
+ * @check_val: Required check value to get the status of  periph
+ */
+struct zynq_slcr_mio_get_status {
+	const char *peri_name;
+	const int *get_pins;
+	int num_pins;
+	u32 mask;
+	u32 check_val;
+};
+
+static const int usb0_pins[] = {
+	28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39
+};
+
+static const int usb1_pins[] = {
+	40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
+};
+
+static const struct zynq_slcr_mio_get_status mio_periphs[] = {
+	{
+		"usb0",
+		usb0_pins,
+		ARRAY_SIZE(usb0_pins),
+		SLCR_USB_L1_SEL,
+		SLCR_USB_L1_SEL,
+	},
+	{
+		"usb1",
+		usb1_pins,
+		ARRAY_SIZE(usb1_pins),
+		SLCR_USB_L1_SEL,
+		SLCR_USB_L1_SEL,
+	},
+};
+
 static int slcr_lock = 1; /* 1 means locked, 0 means unlocked */
 
 void zynq_slcr_lock(void)
 {
-	if (!slcr_lock)
+	if (!slcr_lock) {
 		writel(SLCR_LOCK_MAGIC, &slcr_base->slcr_lock);
+		slcr_lock = 1;
+	}
 }
 
 void zynq_slcr_unlock(void)
 {
-	if (slcr_lock)
+	if (slcr_lock) {
 		writel(SLCR_UNLOCK_MAGIC, &slcr_base->slcr_unlock);
+		slcr_lock = 0;
+	}
 }
 
 /* Reset the entire system */
@@ -82,7 +131,7 @@ void zynq_slcr_devcfg_disable(void)
 {
 	zynq_slcr_unlock();
 
-	/* Disable AXI interface */
+	/* Disable AXI interface by asserting FPGA resets */
 	writel(0xFFFFFFFF, &slcr_base->fpga_rst_ctrl);
 
 	/* Set Level Shifters DT618760 */
@@ -98,7 +147,7 @@ void zynq_slcr_devcfg_enable(void)
 	/* Set Level Shifters DT618760 */
 	writel(0xF, &slcr_base->lvl_shftr_en);
 
-	/* Disable AXI interface */
+	/* Enable AXI interface by de-asserting FPGA resets */
 	writel(0x0, &slcr_base->fpga_rst_ctrl);
 
 	zynq_slcr_lock();
@@ -115,3 +164,33 @@ u32 zynq_slcr_get_idcode(void)
 	return (readl(&slcr_base->pss_idcode) & SLCR_IDCODE_MASK) >>
 							SLCR_IDCODE_SHIFT;
 }
+
+/*
+ * zynq_slcr_get_mio_pin_status - Get the MIO pin status of peripheral.
+ *
+ * @periph: Name of the peripheral
+ *
+ * Returns count to indicate the number of pins configured for the
+ * given @periph.
+ */
+int zynq_slcr_get_mio_pin_status(const char *periph)
+{
+	const struct zynq_slcr_mio_get_status *mio_ptr;
+	int val, i, j;
+	int mio = 0;
+
+	for (i = 0; i < ARRAY_SIZE(mio_periphs); i++) {
+		if (strcmp(periph, mio_periphs[i].peri_name) == 0) {
+			mio_ptr = &mio_periphs[i];
+			for (j = 0; j < mio_ptr->num_pins; j++) {
+				val = readl(&slcr_base->mio_pin
+						[mio_ptr->get_pins[j]]);
+				if ((val & mio_ptr->mask) == mio_ptr->check_val)
+					mio++;
+			}
+			break;
+		}
+	}
+
+	return mio;
+}
diff --git a/arch/arm/cpu/armv7/zynq/spl.c b/arch/arm/cpu/armv7/zynq/spl.c
index fcad762..d73e5cb 100644
--- a/arch/arm/cpu/armv7/zynq/spl.c
+++ b/arch/arm/cpu/armv7/zynq/spl.c
@@ -28,6 +28,13 @@ void board_init_f(ulong dummy)
 	board_init_r(NULL, 0);
 }
 
+#ifdef CONFIG_SPL_BOARD_INIT
+void spl_board_init(void)
+{
+	board_init();
+}
+#endif
+
 u32 spl_boot_device(void)
 {
 	u32 mode;
@@ -67,3 +74,11 @@ int spl_start_uboot(void)
 	return 0;
 }
 #endif
+
+__weak void ps7_init(void)
+{
+	/*
+	 * This function is overridden by the one in
+	 * board/xilinx/zynq/ps7_init.c, if it exists.
+	 */
+}