Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / davinci / dvevm / dvevm.c

diff --git a/qemu/roms/u-boot/board/davinci/dvevm/dvevm.c b/qemu/roms/u-boot/board/davinci/dvevm/dvevm.c
new file mode 100644 (file)
index 0000000..c34bde4
--- /dev/null
+++ b/qemu/roms/u-boot/board/davinci/dvevm/dvevm.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * Parts are shamelessly stolen from various TI sources, original copyright
+ * follows:
+ * -----------------------------------------------------------------
+ *
+ * Copyright (C) 2004 Texas Instruments.
+ *
+ * ----------------------------------------------------------------------------
+ * SPDX-License-Identifier:    GPL-2.0+
+ * ----------------------------------------------------------------------------
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/davinci_misc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+       /* arch number of the board */
+       gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_EVM;
+
+       /* address of boot parameters */
+       gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+
+       /* Configure AEMIF pins (although this should be configured at boot time
+        * with pull-up/pull-down resistors) */
+       REG(PINMUX0) = 0x00000c1f;
+
+       davinci_errata_workarounds();
+
+       /* Power on required peripherals */
+       lpsc_on(DAVINCI_LPSC_GPIO);
+       lpsc_on(DAVINCI_LPSC_USB);
+
+#if !defined(CONFIG_SYS_USE_DSPLINK)
+       /* Powerup the DSP */
+       dsp_on();
+#endif /* CONFIG_SYS_USE_DSPLINK */
+
+       davinci_enable_uart0();
+       davinci_enable_emac();
+       davinci_enable_i2c();
+
+       lpsc_on(DAVINCI_LPSC_TIMER1);
+       timer_init();
+
+       return(0);
+}
+
+int misc_init_r(void)
+{
+       uint8_t video_mode;
+       uint8_t eeprom_enetaddr[6];
+
+       /* Read Ethernet MAC address from EEPROM if available. */
+       if (dvevm_read_mac_address(eeprom_enetaddr))
+               davinci_sync_env_enetaddr(eeprom_enetaddr);
+
+       i2c_read(0x39, 0x00, 1, &video_mode, 1);
+
+       setenv("videostd", ((video_mode & 0x80) ? "pal" : "ntsc"));
+
+       return(0);
+}
+
+#ifdef CONFIG_USB_DAVINCI
+
+/* IO Expander I2C address and USB VBUS enable mask */
+#define IOEXP_I2C_ADDR 0x3A
+#define IOEXP_VBUSEN_MASK 1
+
+/*
+ * This function enables USB VBUS by writting to IO expander using I2C.
+ * Note that the I2C is already initialized at this stage. This
+ * function is used by davinci specific USB wrapper code.
+ */
+void enable_vbus(void)
+{
+       uchar data;  /* IO Expander data to enable VBUS */
+
+       /* Write to IO expander to enable VBUS */
+       i2c_read(IOEXP_I2C_ADDR, 0, 0, &data, 1);
+       data &= ~IOEXP_VBUSEN_MASK;
+       i2c_write(IOEXP_I2C_ADDR, 0, 0, &data, 1);
+}
+#endif