Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / nand_spl / board / freescale / mpc8572ds / nand_boot.c

diff --git a/qemu/roms/u-boot/nand_spl/board/freescale/mpc8572ds/nand_boot.c b/qemu/roms/u-boot/nand_spl/board/freescale/mpc8572ds/nand_boot.c
new file mode 100644 (file)
index 0000000..3bc0927
--- /dev/null
+++ b/qemu/roms/u-boot/nand_spl/board/freescale/mpc8572ds/nand_boot.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <asm/io.h>
+#include <nand.h>
+
+u32 sysclk_tbl[] = {
+       33333000, 39999600, 49999500, 66666000,
+       83332500, 99999000, 133332000, 166665000
+};
+
+void board_init_f(ulong bootflag)
+{
+       int px_spd;
+       u32 plat_ratio, bus_clk, sys_clk;
+       ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+#if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM)
+       /* for FPGA */
+       set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
+       set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
+#else
+#error CONFIG_SYS_BR3_PRELIM, CONFIG_SYS_OR3_PRELIM must be defined
+#endif
+
+       /* initialize selected port with appropriate baud rate */
+       px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
+       sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
+       plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+       bus_clk = sys_clk * plat_ratio / 2;
+
+       NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+                       bus_clk / 16 / CONFIG_BAUDRATE);
+
+       puts("\nNAND boot... ");
+
+       /* copy code to RAM and jump to it - this should not return */
+       /* NOTE - code has to be copied out of NAND buffer before
+        * other blocks can be read.
+        */
+       relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, 0,
+                       CONFIG_SYS_NAND_U_BOOT_RELOC);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+       nand_boot();
+}
+
+void putc(char c)
+{
+       if (c == '\n')
+               NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
+
+       NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
+}
+
+void puts(const char *str)
+{
+       while (*str)
+               putc(*str++);
+}