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-rw-r--r--board/nvidia/common/Makefile1
-rw-r--r--board/nvidia/common/board.c42
-rw-r--r--board/nvidia/common/emc.c53
-rw-r--r--board/nvidia/common/emc.h29
-rw-r--r--board/nvidia/dts/tegra2-seaboard.dts64
5 files changed, 188 insertions, 1 deletions
diff --git a/board/nvidia/common/Makefile b/board/nvidia/common/Makefile
index 3e748fdd2..a93d4583e 100644
--- a/board/nvidia/common/Makefile
+++ b/board/nvidia/common/Makefile
@@ -27,6 +27,7 @@ LIB = $(obj)lib$(VENDOR).o
COBJS-y += board.o
COBJS-$(CONFIG_SPI_UART_SWITCH) += uart-spi-switch.o
+COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o
COBJS := $(COBJS-y)
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index 85dd359ec..2e2213359 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -23,6 +23,7 @@
#include <common.h>
#include <ns16550.h>
+#include <linux/compiler.h>
#include <asm/io.h>
#include <asm/arch/tegra2.h>
#include <asm/arch/sys_proto.h>
@@ -30,12 +31,17 @@
#include <asm/arch/board.h>
#include <asm/arch/clk_rst.h>
#include <asm/arch/clock.h>
+#include <asm/arch/emc.h>
#include <asm/arch/pinmux.h>
+#include <asm/arch/pmc.h>
+#include <asm/arch/pmu.h>
#include <asm/arch/uart.h>
+#include <asm/arch/warmboot.h>
#include <spi.h>
#include <asm/arch/usb.h>
#include <i2c.h>
#include "board.h"
+#include "emc.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -59,11 +65,28 @@ void __pin_mux_usb(void)
void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
/*
+ * Routine: power_det_init
+ * Description: turn off power detects
+ */
+static void power_det_init(void)
+{
+#if defined(CONFIG_TEGRA2)
+ struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE;
+
+ /* turn off power detects */
+ writel(0, &pmc->pmc_pwr_det_latch);
+ writel(0, &pmc->pmc_pwr_det);
+#endif
+}
+
+/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
+ __maybe_unused int err;
+
/* Do clocks and UART first so that printf() works */
clock_init();
clock_verify();
@@ -76,18 +99,35 @@ int board_init(void)
#endif
/* boot param addr */
gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
+
+ power_det_init();
+
#ifdef CONFIG_TEGRA_I2C
#ifndef CONFIG_SYS_I2C_INIT_BOARD
#error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
#endif
i2c_init_board();
-#endif
+# ifdef CONFIG_TEGRA_PMU
+ if (pmu_set_nominal())
+ debug("Failed to select nominal voltages\n");
+# ifdef CONFIG_TEGRA_CLOCK_SCALING
+ err = board_emc_init();
+ if (err)
+ debug("Memory controller init failed: %d\n", err);
+# endif
+# endif /* CONFIG_TEGRA_PMU */
+#endif /* CONFIG_TEGRA_I2C */
#ifdef CONFIG_USB_EHCI_TEGRA
pin_mux_usb();
board_usb_init(gd->fdt_blob);
#endif
+#ifdef CONFIG_TEGRA2_LP0
+ /* prepare the WB code to LP0 location */
+ warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
+#endif
+
return 0;
}
diff --git a/board/nvidia/common/emc.c b/board/nvidia/common/emc.c
new file mode 100644
index 000000000..8e4290cee
--- /dev/null
+++ b/board/nvidia/common/emc.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * 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/io.h>
+#include <asm/arch/ap20.h>
+#include <asm/arch/clk_rst.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/emc.h>
+#include <asm/arch/pmu.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/tegra2.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* These rates are hard-coded for now, until fdt provides them */
+#define EMC_SDRAM_RATE_T20 (333000 * 2 * 1000)
+#define EMC_SDRAM_RATE_T25 (380000 * 2 * 1000)
+
+int board_emc_init(void)
+{
+ unsigned rate;
+
+ switch (tegra_get_chip_type()) {
+ default:
+ case TEGRA_SOC_T20:
+ rate = EMC_SDRAM_RATE_T20;
+ break;
+ case TEGRA_SOC_T25:
+ rate = EMC_SDRAM_RATE_T25;
+ break;
+ }
+ return tegra_set_emc(gd->fdt_blob, rate);
+}
diff --git a/board/nvidia/common/emc.h b/board/nvidia/common/emc.h
new file mode 100644
index 000000000..ec1b115f4
--- /dev/null
+++ b/board/nvidia/common/emc.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.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
+ */
+
+#ifndef _NVIDIA_EMC_H_
+#define _NVIDIA_EMC_H_
+
+int board_emc_init(void);
+
+#endif
diff --git a/board/nvidia/dts/tegra2-seaboard.dts b/board/nvidia/dts/tegra2-seaboard.dts
index 6ba3ec48f..335253953 100644
--- a/board/nvidia/dts/tegra2-seaboard.dts
+++ b/board/nvidia/dts/tegra2-seaboard.dts
@@ -89,4 +89,68 @@
i2c@7000c500 {
clock-frequency = <100000>;
};
+
+ emc@7000f400 {
+ emc-table@190000 {
+ reg = < 190000 >;
+ compatible = "nvidia,tegra20-emc-table";
+ clock-frequency = < 190000 >;
+ nvidia,emc-registers = < 0x0000000c 0x00000026
+ 0x00000009 0x00000003 0x00000004 0x00000004
+ 0x00000002 0x0000000c 0x00000003 0x00000003
+ 0x00000002 0x00000001 0x00000004 0x00000005
+ 0x00000004 0x00000009 0x0000000d 0x0000059f
+ 0x00000000 0x00000003 0x00000003 0x00000003
+ 0x00000003 0x00000001 0x0000000b 0x000000c8
+ 0x00000003 0x00000007 0x00000004 0x0000000f
+ 0x00000002 0x00000000 0x00000000 0x00000002
+ 0x00000000 0x00000000 0x00000083 0xa06204ae
+ 0x007dc010 0x00000000 0x00000000 0x00000000
+ 0x00000000 0x00000000 0x00000000 0x00000000 >;
+ };
+ emc-table@380000 {
+ reg = < 380000 >;
+ compatible = "nvidia,tegra20-emc-table";
+ clock-frequency = < 380000 >;
+ nvidia,emc-registers = < 0x00000017 0x0000004b
+ 0x00000012 0x00000006 0x00000004 0x00000005
+ 0x00000003 0x0000000c 0x00000006 0x00000006
+ 0x00000003 0x00000001 0x00000004 0x00000005
+ 0x00000004 0x00000009 0x0000000d 0x00000b5f
+ 0x00000000 0x00000003 0x00000003 0x00000006
+ 0x00000006 0x00000001 0x00000011 0x000000c8
+ 0x00000003 0x0000000e 0x00000007 0x0000000f
+ 0x00000002 0x00000000 0x00000000 0x00000002
+ 0x00000000 0x00000000 0x00000083 0xe044048b
+ 0x007d8010 0x00000000 0x00000000 0x00000000
+ 0x00000000 0x00000000 0x00000000 0x00000000 >;
+ };
+ };
+
+ kbc@7000e200 {
+ linux,keymap = <0x00020011 0x0003001f 0x0004001e 0x0005002c
+ 0x000701d0 0x0107007d 0x02060064 0x02070038 0x03000006
+ 0x03010005 0x03020013 0x03030012 0x03040021 0x03050020
+ 0x0306002d 0x04000008 0x04010007 0x04020014 0x04030023
+ 0x04040022 0x0405002f 0x0406002e 0x04070039 0x0500000a
+ 0x05010009 0x05020016 0x05030015 0x05040024 0x05050031
+ 0x05060030 0x0507002b 0x0600000c 0x0601000b 0x06020018
+ 0x06030017 0x06040026 0x06050025 0x06060033 0x06070032
+ 0x0701000d 0x0702001b 0x0703001c 0x0707008b 0x08040036
+ 0x0805002a 0x09050061 0x0907001d 0x0b00001a 0x0b010019
+ 0x0b020028 0x0b030027 0x0b040035 0x0b050034 0x0c000044
+ 0x0c010043 0x0c02000e 0x0c030004 0x0c040003 0x0c050067
+ 0x0c0600d2 0x0c070077 0x0d00006e 0x0d01006f 0x0d030068
+ 0x0d04006d 0x0d05006a 0x0d06006c 0x0d070069 0x0e000057
+ 0x0e010058 0x0e020042 0x0e030010 0x0e04003e 0x0e05003d
+ 0x0e060002 0x0e070041 0x0f000001 0x0f010029 0x0f02003f
+ 0x0f03000f 0x0f04003b 0x0f05003c 0x0f06003a 0x0f070040
+ 0x14000047 0x15000049 0x15010048 0x1502004b 0x1504004f
+ 0x16010062 0x1602004d 0x1603004c 0x16040051 0x16050050
+ 0x16070052 0x1b010037 0x1b03004a 0x1b04004e 0x1b050053
+ 0x1c050073 0x1d030066 0x1d04006b 0x1d0500e0 0x1d060072
+ 0x1d0700e1 0x1e000045 0x1e010046 0x1e020071
+ 0x1f04008a>;
+ linux,fn-keymap = <0x05040002>;
+ };
};
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 01:51:09 +0000