Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / freescale / common / cadmus.c

diff --git a/qemu/roms/u-boot/board/freescale/common/cadmus.c b/qemu/roms/u-boot/board/freescale/common/cadmus.c
new file mode 100644 (file)
index 0000000..dad6847
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/common/cadmus.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2004, 2011 Freescale Semiconductor.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+
+#include <common.h>
+
+
+/*
+ * CADMUS Board System Registers
+ */
+#ifndef CONFIG_SYS_CADMUS_BASE_REG
+#define CONFIG_SYS_CADMUS_BASE_REG     (CADMUS_BASE_ADDR + 0x4000)
+#endif
+
+typedef struct cadmus_reg {
+    u_char cm_ver;             /* Board version */
+    u_char cm_csr;             /* General control/status */
+    u_char cm_rst;             /* Reset control */
+    u_char cm_hsclk;           /* High speed clock */
+    u_char cm_hsxclk;          /* High speed clock extended */
+    u_char cm_led;             /* LED data */
+    u_char cm_pci;             /* PCI control/status */
+    u_char cm_dma;             /* DMA control */
+    u_char cm_reserved[248];   /* Total 256 bytes */
+} cadmus_reg_t;
+
+
+unsigned int
+get_board_version(void)
+{
+       volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
+
+       return cadmus->cm_ver;
+}
+
+
+unsigned long
+get_clock_freq(void)
+{
+       volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
+
+       uint pci1_speed = (cadmus->cm_pci >> 2) & 0x3; /* PSPEED in [4:5] */
+
+       if (pci1_speed == 0) {
+               return 33333333;
+       } else if (pci1_speed == 1) {
+               return 66666666;
+       } else {
+               /* Really, unknown. Be safe? */
+               return 33333333;
+       }
+}
+
+
+unsigned int
+get_pci_slot(void)
+{
+       volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
+
+       /*
+        * PCI slot in USER bits CSR[6:7] by convention.
+        */
+       return ((cadmus->cm_csr >> 6) & 0x3) + 1;
+}
+
+
+unsigned int
+get_pci_dual(void)
+{
+       volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
+
+       /*
+        * PCI DUAL in CM_PCI[3]
+        */
+       return cadmus->cm_pci & 0x10;
+}