X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fspl_minimal.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fspl_minimal.c;h=cc45f715e84bbe4c7164c5faf6eddf096fc87a12;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

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
index 000000000..cc45f715e
--- /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);
+}