1 files changed, 125 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/freescale/m5253evbe/m5253evbe.c b/qemu/roms/u-boot/board/freescale/m5253evbe/m5253evbe.c
new file mode 100644
index 000000000..15ff755a5
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/m5253evbe/m5253evbe.c
@@ -0,0 +1,125 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * Hayden Fraser (Hayden.Fraser@freescale.com)
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+int checkboard(void)
+{
+	puts("Board: ");
+	puts("Freescale MCF5253 EVBE\n");
+	return 0;
+};
+
+phys_size_t initdram(int board_type)
+{
+	/*
+	 * Check to see if the SDRAM has already been initialized
+	 * by a run control tool
+	 */
+	if (!(mbar_readLong(MCFSIM_DCR) & 0x8000)) {
+		u32 RC, dramsize;
+
+		RC = (CONFIG_SYS_CLK / 1000000) >> 1;
+		RC = (RC * 15) >> 4;
+
+		/* Initialize DRAM Control Register: DCR */
+		mbar_writeShort(MCFSIM_DCR, (0x8400 | RC));
+		asm("nop");
+
+		mbar_writeLong(MCFSIM_DACR0, 0x00002320);
+		asm("nop");
+
+		/* Initialize DMR0 */
+		dramsize = ((CONFIG_SYS_SDRAM_SIZE << 20) - 1) & 0xFFFC0000;
+		mbar_writeLong(MCFSIM_DMR0, dramsize | 1);
+		asm("nop");
+
+		mbar_writeLong(MCFSIM_DACR0, 0x00002328);
+		asm("nop");
+
+		/* Write to this block to initiate precharge */
+		*(u32 *) (CONFIG_SYS_SDRAM_BASE) = 0xa5a5a5a5;
+		asm("nop");
+
+		/* Set RE bit in DACR */
+		mbar_writeLong(MCFSIM_DACR0,
+			       mbar_readLong(MCFSIM_DACR0) | 0x8000);
+		asm("nop");
+
+		/* Wait for at least 8 auto refresh cycles to occur */
+		udelay(500);
+
+		/* Finish the configuration by issuing the MRS */
+		mbar_writeLong(MCFSIM_DACR0,
+			       mbar_readLong(MCFSIM_DACR0) | 0x0040);
+		asm("nop");
+
+		*(u32 *) (CONFIG_SYS_SDRAM_BASE + 0x800) = 0xa5a5a5a5;
+	}
+
+	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+}
+
+int testdram(void)
+{
+	/* TODO: XXX XXX XXX */
+	printf("DRAM test not implemented!\n");
+
+	return (0);
+}
+
+#ifdef CONFIG_CMD_IDE
+#include <ata.h>
+int ide_preinit(void)
+{
+	return (0);
+}
+
+void ide_set_reset(int idereset)
+{
+	atac_t *ata = (atac_t *) CONFIG_SYS_ATA_BASE_ADDR;
+	long period;
+	/*  t1,  t2,  t3,  t4,  t5,  t6,  t9, tRD,  tA */
+	int piotms[5][9] = { {70, 165, 60, 30, 50, 5, 20, 0, 35},	/* PIO 0 */
+	{50, 125, 45, 20, 35, 5, 15, 0, 35},	/* PIO 1 */
+	{30, 100, 30, 15, 20, 5, 10, 0, 35},	/* PIO 2 */
+	{30, 80, 30, 10, 20, 5, 10, 0, 35},	/* PIO 3 */
+	{25, 70, 20, 10, 20, 5, 10, 0, 35}	/* PIO 4 */
+	};
+
+	if (idereset) {
+		/* control reset */
+		out_8(&ata->cr, 0);
+		udelay(100);
+	} else {
+		mbar2_writeLong(CIM_MISCCR, CIM_MISCCR_CPUEND);
+
+#define CALC_TIMING(t) (t + period - 1) / period
+		period = 1000000000 / (CONFIG_SYS_CLK / 2);	/* period in ns */
+
+		/*ata->ton = CALC_TIMING (180); */
+		out_8(&ata->t1, CALC_TIMING(piotms[2][0]));
+		out_8(&ata->t2w, CALC_TIMING(piotms[2][1]));
+		out_8(&ata->t2r, CALC_TIMING(piotms[2][1]));
+		out_8(&ata->ta, CALC_TIMING(piotms[2][8]));
+		out_8(&ata->trd, CALC_TIMING(piotms[2][7]));
+		out_8(&ata->t4, CALC_TIMING(piotms[2][3]));
+		out_8(&ata->t9, CALC_TIMING(piotms[2][6]));
+
+		/* IORDY enable */
+		out_8(&ata->cr, 0x40);
+		udelay(2000);
+		/* IORDY enable */
+		setbits_8(&ata->cr, 0x01);
+	}
+}
+#endif				/* CONFIG_CMD_IDE */