ColdFire: Added M5275EVB support.
Signed-off-by: Matthew Fettke <mfettke@videon-central.com>
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Acked-by: John Rigby <jrigby@freescale.com>
diff --git a/board/freescale/m5275evb/m5275evb.c b/board/freescale/m5275evb/m5275evb.c
new file mode 100644
index 0000000..a1b2902
--- /dev/null
+++ b/board/freescale/m5275evb/m5275evb.c
@@ -0,0 +1,112 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2005-2008 Arthur Shipkowski (art@videon-central.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/immap.h>
+
+#define PERIOD 13 /* system bus period in ns */
+#define SDRAM_TREFI 7800 /* in ns */
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale MCF5275 EVB\n");
+ return 0;
+};
+
+long int initdram(int board_type)
+{
+ volatile sdramctrl_t *sdp = (sdramctrl_t *)(MMAP_SDRAM);
+ volatile gpio_t *gpio_reg = (gpio_t *)(MMAP_GPIO);
+
+ gpio_reg->par_sdram = 0x3FF; /* Enable SDRAM */
+
+ /* Set up chip select */
+ sdp->sdbar0 = CFG_SDRAM_BASE;
+ sdp->sdbmr0 = MCF_SDRAMC_SDMRn_BAM_32M | MCF_SDRAMC_SDMRn_V;
+
+ /* Set up timing */
+ sdp->sdcfg1 = 0x83711630;
+ sdp->sdcfg2 = 0x46770000;
+
+ /* Enable clock */
+ sdp->sdcr = MCF_SDRAMC_SDCR_MODE_EN | MCF_SDRAMC_SDCR_CKE;
+
+ /* Set precharge */
+ sdp->sdcr |= MCF_SDRAMC_SDCR_IPALL;
+
+ /* Dummy write to start SDRAM */
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Send LEMR */
+ sdp->sdmr = MCF_SDRAMC_SDMR_BNKAD_LEMR
+ | MCF_SDRAMC_SDMR_AD(0x0)
+ | MCF_SDRAMC_SDMR_CMD;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Send LMR */
+ sdp->sdmr = 0x058d0000;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Stop sending commands */
+ sdp->sdmr &= ~(MCF_SDRAMC_SDMR_CMD);
+
+ /* Set precharge */
+ sdp->sdcr |= MCF_SDRAMC_SDCR_IPALL;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Stop manual precharge, send 2 IREF */
+ sdp->sdcr &= ~(MCF_SDRAMC_SDCR_IPALL);
+ sdp->sdcr |= MCF_SDRAMC_SDCR_IREF;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Write mode register, clear reset DLL */
+ sdp->sdmr = 0x018d0000;
+ *((volatile unsigned long *)CFG_SDRAM_BASE) = 0xa5a59696;
+
+ /* Stop sending commands */
+ sdp->sdmr &= ~(MCF_SDRAMC_SDMR_CMD);
+ sdp->sdcr &= ~(MCF_SDRAMC_SDCR_MODE_EN);
+
+ /* Turn on auto refresh, lock SDMR */
+ sdp->sdcr =
+ MCF_SDRAMC_SDCR_CKE
+ | MCF_SDRAMC_SDCR_REF
+ | MCF_SDRAMC_SDCR_MUX(1)
+ /* 1 added to round up */
+ | MCF_SDRAMC_SDCR_RCNT((SDRAM_TREFI/(PERIOD*64)) - 1 + 1)
+ | MCF_SDRAMC_SDCR_DQS_OE(0x3);
+
+ return CFG_SDRAM_SIZE * 1024 * 1024;
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}