Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / powerpc / cpu / mpc512x / diu.c

diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/mpc512x/diu.c b/qemu/roms/u-boot/arch/powerpc/cpu/mpc512x/diu.c
new file mode 100644 (file)
index 0000000..36e1f9c
--- /dev/null
+++ b/qemu/roms/u-boot/arch/powerpc/cpu/mpc512x/diu.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ * York Sun <yorksun@freescale.com>
+ *
+ * FSL DIU Framebuffer driver
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/io.h>
+
+#include <fsl_diu_fb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+       volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+       volatile clk512x_t *clk = &immap->clk;
+       volatile unsigned int *clkdvdr = &clk->scfr[0];
+       unsigned long speed_ccb, temp, pixval;
+
+       speed_ccb = get_bus_freq(0) * 4;
+       temp = 1000000000/pixclock;
+       temp *= 1000;
+       pixval = speed_ccb / temp;
+       debug("DIU pixval = %lu\n", pixval);
+
+       /* Modify PXCLK in GUTS CLKDVDR */
+       debug("DIU: Current value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
+       temp = in_be32(clkdvdr) & 0xFFFFFF00;
+       out_be32(clkdvdr, temp | (pixval & 0xFF));
+       debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+       unsigned int pixel_format = 0x88883316;
+
+       debug("mpc5121_diu_init\n");
+       return fsl_diu_init(xres, yres, pixel_format, 0);
+}