Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / powerpc / cpu / mpc85xx / spl_minimal.c

diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/mpc85xx/spl_minimal.c b/qemu/roms/u-boot/arch/powerpc/cpu/mpc85xx/spl_minimal.c
new file mode 100644 (file)
index 0000000..cc45f71
--- /dev/null
+++ b/qemu/roms/u-boot/arch/powerpc/cpu/mpc85xx/spl_minimal.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/global_data.h>
+#include <fsl_ifc.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ulong cpu_init_f(void)
+{
+#ifdef CONFIG_SYS_INIT_L2_ADDR
+       ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
+
+       out_be32(&l2cache->l2srbar0, CONFIG_SYS_INIT_L2_ADDR);
+
+       /* set MBECCDIS=1, SBECCDIS=1 */
+       out_be32(&l2cache->l2errdis,
+               (MPC85xx_L2ERRDIS_MBECC | MPC85xx_L2ERRDIS_SBECC));
+
+       /* set L2E=1 & L2SRAM=001 */
+       out_be32(&l2cache->l2ctl,
+               (MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2SRAM_ENTIRE));
+#endif
+
+       return 0;
+}
+
+#ifndef CONFIG_SYS_FSL_TBCLK_DIV
+#define CONFIG_SYS_FSL_TBCLK_DIV 8
+#endif
+
+void udelay(unsigned long usec)
+{
+       u32 ticks_per_usec = gd->bus_clk / (CONFIG_SYS_FSL_TBCLK_DIV * 1000000);
+       u32 ticks = ticks_per_usec * usec;
+       u32 s = mfspr(SPRN_TBRL);
+
+       while ((mfspr(SPRN_TBRL) - s) < ticks);
+}