Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / nand_spl / board / freescale / p1_p2_rdb / nand_boot.c

diff --git a/qemu/roms/u-boot/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c b/qemu/roms/u-boot/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c
new file mode 100644 (file)
index 0000000..f7e8438
--- /dev/null
+++ b/qemu/roms/u-boot/nand_spl/board/freescale/p1_p2_rdb/nand_boot.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#include <common.h>
+#include <mpc85xx.h>
+#include <asm/io.h>
+#include <ns16550.h>
+#include <nand.h>
+#include <asm/mmu.h>
+#include <asm/immap_85xx.h>
+#include <fsl_ddr_sdram.h>
+#include <asm/fsl_law.h>
+
+#define SYSCLK_MASK     0x00200000
+#define BOARDREV_MASK   0x10100000
+#define BOARDREV_B      0x10100000
+#define BOARDREV_C      0x00100000
+
+#define SYSCLK_66       66666666
+#define SYSCLK_50       50000000
+#define SYSCLK_100      100000000
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void board_init_f(ulong bootflag)
+{
+       uint plat_ratio, bus_clk, sys_clk = 0;
+       volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+       volatile ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+       uint val, temp, sysclk_mask;
+
+       val = pgpio->gpdat;
+       sysclk_mask = val & SYSCLK_MASK;
+       temp = val & BOARDREV_MASK;
+       if (temp == BOARDREV_C) {
+               if(sysclk_mask == 0)
+                       sys_clk = SYSCLK_66;
+               else
+                       sys_clk = SYSCLK_100;
+       } else if (temp == BOARDREV_B) {
+               if(sysclk_mask == 0)
+                       sys_clk = SYSCLK_66;
+               else
+                       sys_clk = SYSCLK_50;
+       }
+
+       plat_ratio = gur->porpllsr & 0x0000003e;
+       plat_ratio >>= 1;
+       bus_clk = plat_ratio * sys_clk;
+       NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+                       bus_clk / 16 / CONFIG_BAUDRATE);
+
+       puts("\nNAND boot... ");
+
+       /* copy code to DDR 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++);
+}