X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fboard%2Ffreescale%2Fmpc8360erdk%2Fnand.c;fp=qemu%2Froms%2Fu-boot%2Fboard%2Ffreescale%2Fmpc8360erdk%2Fnand.c;h=237c0c42e096b252344a83c3b13e861dc58eded4;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/board/freescale/mpc8360erdk/nand.c b/qemu/roms/u-boot/board/freescale/mpc8360erdk/nand.c
new file mode 100644
index 000000000..237c0c42e
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/mpc8360erdk/nand.c
@@ -0,0 +1,89 @@
+/*
+ * MPC8360E-RDK support for the NAND on FSL UPM
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ *                    Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/immap_83xx.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/fsl_upm.h>
+#include <nand.h>
+
+static struct immap *im = (struct immap *)CONFIG_SYS_IMMR;
+
+static const u32 upm_array[] = {
+	0x0ff03c30, 0x0ff03c30, 0x0ff03c34, 0x0ff33c30, /* Words  0 to  3 */
+	0xfff33c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words  4 to  7 */
+	0x0faf3c30, 0x0faf3c30, 0x0faf3c30, 0x0fff3c34, /* Words  8 to 11 */
+	0xffff3c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 12 to 15 */
+	0x0fa3fc30, 0x0fa3fc30, 0x0fa3fc30, 0x0ff3fc34, /* Words 16 to 19 */
+	0xfff3fc31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 20 to 23 */
+	0x0ff33c30, 0x0fa33c30, 0x0fa33c34, 0x0ff33c30, /* Words 24 to 27 */
+	0xfff33c31, 0xfff0fc30, 0xfff0fc30, 0xfff0fc30, /* Words 28 to 31 */
+	0xfff3fc30, 0xfff3fc30, 0xfff6fc30, 0xfffcfc30, /* Words 32 to 35 */
+	0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 36 to 39 */
+	0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 40 to 43 */
+	0xfffdfc30, 0xfffffc30, 0xfffffc30, 0xfffffc31, /* Words 44 to 47 */
+	0xfffffc30, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 48 to 51 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 52 to 55 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 56 to 59 */
+	0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 60 to 63 */
+};
+
+static void upm_setup(struct fsl_upm *upm)
+{
+	int i;
+
+	/* write upm array */
+	out_be32(upm->mxmr, MxMR_OP_WARR);
+
+	for (i = 0; i < 64; i++) {
+		out_be32(upm->mdr, upm_array[i]);
+		out_8(upm->io_addr, 0x0);
+	}
+
+	/* normal operation */
+	out_be32(upm->mxmr, MxMR_OP_NORM);
+	while (in_be32(upm->mxmr) != MxMR_OP_NORM)
+		eieio();
+}
+
+static int dev_ready(int chip_nr)
+{
+	if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) {
+		debug("nand ready\n");
+		return 1;
+	}
+
+	debug("nand busy\n");
+	return 0;
+}
+
+static struct fsl_upm_nand fun = {
+	.upm = {
+		.io_addr = (void *)CONFIG_SYS_NAND_BASE,
+	},
+	.width = 8,
+	.upm_cmd_offset = 8,
+	.upm_addr_offset = 16,
+	.dev_ready = dev_ready,
+	.wait_flags = FSL_UPM_WAIT_RUN_PATTERN,
+	.chip_delay = 50,
+};
+
+int board_nand_init(struct nand_chip *nand)
+{
+	fun.upm.mxmr = &im->im_lbc.mamr;
+	fun.upm.mdr = &im->im_lbc.mdr;
+	fun.upm.mar = &im->im_lbc.mar;
+
+	upm_setup(&fun.upm);
+
+	return fsl_upm_nand_init(nand, &fun);
+}