powerpc/T4240EMU: Add T4240EMU target
Add emulator support for T4240. Emulator has limited peripherals and
interfaces. Difference between emulator and T4240QDS includes:
ECC for DDR is disabled due the procedure to load images
No board FPGA (QIXIS)
NOR flash has 32-bit port for higher loading speed
IFC and I2C timing don't really matter, so set them fast
No ethernet
Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/t4qds/ddr.h b/board/freescale/t4qds/ddr.h
new file mode 100644
index 0000000..cde0785
--- /dev/null
+++ b/board/freescale/t4qds/ddr.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * 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
+ */
+
+#ifndef __DDR_H__
+#define __DDR_H__
+struct board_specific_parameters {
+ u32 n_ranks;
+ u32 datarate_mhz_high;
+ u32 rank_gb;
+ u32 clk_adjust;
+ u32 wrlvl_start;
+ u32 wrlvl_ctl_2;
+ u32 wrlvl_ctl_3;
+ u32 cpo;
+ u32 write_data_delay;
+ u32 force_2T;
+};
+
+/*
+ * These tables contain all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ */
+
+#ifdef CONFIG_T4240QDS
+static const struct board_specific_parameters udimm0[] = {
+ /*
+ * memory controller 0
+ * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
+ * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
+ */
+ {2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
+ {2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0},
+ {2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0},
+ {2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0},
+ {2, 1900, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
+ {2, 2140, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
+ {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
+ {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0},
+ {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0},
+ {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0},
+ {}
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+ /*
+ * memory controller 0
+ * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
+ * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
+ */
+ {4, 1350, 0, 5, 9, 0x08070605, 0x07080805, 0xff, 2, 0},
+ {4, 1666, 0, 5, 8, 0x08070605, 0x07080805, 0xff, 2, 0},
+ {4, 2140, 0, 5, 8, 0x08070605, 0x07081805, 0xff, 2, 0},
+ {2, 1350, 0, 5, 7, 0x0809090b, 0x0c0c0d09, 0xff, 2, 0},
+ {2, 1666, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0},
+ {2, 2140, 0, 5, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0},
+ {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
+ {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0},
+ {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0},
+ {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0},
+ {}
+};
+
+#else /* CONFIG_T4240EMU */
+static const struct board_specific_parameters udimm0[] = {
+ /*
+ * memory controller 0
+ * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
+ * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
+ */
+ {2, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
+ {1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
+ {}
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+ /*
+ * memory controller 0
+ * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
+ * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
+ */
+ {4, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
+ {2, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
+ {1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
+ {}
+};
+#endif /* CONFIG_T4240EMU */
+
+/*
+ * The three slots have slightly different timing. The center values are good
+ * for all slots. We use identical speed tables for them. In future use, if
+ * DIMMs require separated tables, make more entries as needed.
+ */
+static const struct board_specific_parameters *udimms[] = {
+ udimm0,
+};
+
+/*
+ * The three slots have slightly different timing. See comments above.
+ */
+static const struct board_specific_parameters *rdimms[] = {
+ rdimm0,
+};
+
+
+#endif