Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / freescale / mpc8610hpcd / mpc8610hpcd_diu.c

diff --git a/qemu/roms/u-boot/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/qemu/roms/u-boot/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
new file mode 100644 (file)
index 0000000..8f4183b
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ * Authors: York Sun <yorksun@freescale.com>
+ *          Timur Tabi <timur@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>
+#include "../common/pixis.h"
+
+#define PX_BRDCFG0_DLINK       0x10
+#define PX_BRDCFG0_DVISEL      0x08
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+       volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+       volatile ccsr_gur_t *gur = &immap->im_gur;
+       volatile unsigned int *guts_clkdvdr = &gur->clkdvdr;
+       unsigned long speed_ccb, temp, pixval;
+
+       speed_ccb = get_bus_freq(0);
+       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", *guts_clkdvdr);
+       temp = *guts_clkdvdr & 0x2000FFFF;
+       *guts_clkdvdr = temp;                           /* turn off clock */
+       *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16);
+       debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+       const char *name;
+       int gamma_fix = 0;
+       u32 pixel_format = 0x88883316;
+       u8 temp;
+
+       temp = in_8(&pixis->brdcfg0);
+
+       if (strncmp(port, "dlvds", 5) == 0) {
+               /* Dual link LVDS */
+               gamma_fix = 1;
+               temp &= ~(PX_BRDCFG0_DLINK | PX_BRDCFG0_DVISEL);
+               name = "Dual-Link LVDS";
+       } else if (strncmp(port, "lvds", 4) == 0) {
+               /* Single link LVDS */
+               temp = (temp & ~PX_BRDCFG0_DVISEL) | PX_BRDCFG0_DLINK;
+               name = "Single-Link LVDS";
+       } else {
+               /* DVI */
+               if (in_8(&pixis->ver) == 1)     /* Board version */
+                       pixel_format = 0x88882317;
+               temp |= PX_BRDCFG0_DVISEL;
+               name = "DVI";
+       }
+
+       printf("DIU:   Switching to %s monitor @ %ux%u\n", name, xres, yres);
+       out_8(&pixis->brdcfg0, temp);
+
+       return fsl_diu_init(xres, yres, pixel_format, gamma_fix);
+}