ti814x_evm: add ti814x evm board support

Add TI814X EVM board directory, config file, and MAINTAINERS
entry. Enable build.

Signed-off-by: Matt Porter <mporter@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Adapt to recent omap_hsmmc requirements, Matt re-tested]
Signed-off-by: Tom Rini <trini@ti.com>

4 files changed, 302 insertions, 0 deletions

diff --git a/board/ti/ti814x/Makefile b/board/ti/ti814x/Makefile
new file mode 100644
index 0000000000..09d24222f3
--- /dev/null
+++ b/board/ti/ti814x/Makefile
@@ -0,0 +1,46 @@
+#
+# Makefile
+#
+# Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+#
+# 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 "as is" WITHOUT ANY WARRANTY of any
+# kind, whether express or implied; without even the implied warranty
+# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+ifdef CONFIG_SPL_BUILD
+COBJS	:= mux.o
+endif
+
+COBJS	+= evm.o
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/ti/ti814x/evm.c b/board/ti/ti814x/evm.c
new file mode 100644
index 0000000000..446e36b844
--- /dev/null
+++ b/board/ti/ti814x/evm.c
@@ -0,0 +1,198 @@
+/*
+ * evm.c
+ *
+ * Board functions for TI814x EVM
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <spl.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/omap.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include "evm.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
+static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
+#endif
+
+/* UART Defines */
+#ifdef CONFIG_SPL_BUILD
+#define UART_RESET		(0x1 << 1)
+#define UART_CLK_RUNNING_MASK	0x1
+#define UART_SMART_IDLE_EN	(0x1 << 0x3)
+
+static void rtc32k_enable(void)
+{
+	struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE;
+
+	/*
+	 * Unlock the RTC's registers.  For more details please see the
+	 * RTC_SS section of the TRM.  In order to unlock we need to
+	 * write these specific values (keys) in this order.
+	 */
+	writel(0x83e70b13, &rtc->kick0r);
+	writel(0x95a4f1e0, &rtc->kick1r);
+
+	/* Enable the RTC 32K OSC by setting bits 3 and 6. */
+	writel((1 << 3) | (1 << 6), &rtc->osc);
+}
+
+static void uart_enable(void)
+{
+	u32 regVal;
+
+	/* UART softreset */
+	regVal = readl(&uart_base->uartsyscfg);
+	regVal |= UART_RESET;
+	writel(regVal, &uart_base->uartsyscfg);
+	while ((readl(&uart_base->uartsyssts) &
+		UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
+		;
+
+	/* Disable smart idle */
+	regVal = readl(&uart_base->uartsyscfg);
+	regVal |= UART_SMART_IDLE_EN;
+	writel(regVal, &uart_base->uartsyscfg);
+}
+
+static void wdt_disable(void)
+{
+	writel(0xAAAA, &wdtimer->wdtwspr);
+	while (readl(&wdtimer->wdtwwps) != 0x0)
+		;
+	writel(0x5555, &wdtimer->wdtwspr);
+	while (readl(&wdtimer->wdtwwps) != 0x0)
+		;
+}
+
+static const struct cmd_control evm_ddr2_cctrl_data = {
+	.cmd0csratio	= 0x80,
+	.cmd0dldiff	= 0x04,
+	.cmd0iclkout	= 0x00,
+
+	.cmd1csratio	= 0x80,
+	.cmd1dldiff	= 0x04,
+	.cmd1iclkout	= 0x00,
+
+	.cmd2csratio	= 0x80,
+	.cmd2dldiff	= 0x04,
+	.cmd2iclkout	= 0x00,
+};
+
+static const struct emif_regs evm_ddr2_emif0_regs = {
+	.sdram_config			= 0x40801ab2,
+	.ref_ctrl			= 0x10000c30,
+	.sdram_tim1			= 0x0aaaf552,
+	.sdram_tim2			= 0x043631d2,
+	.sdram_tim3			= 0x00000327,
+	.emif_ddr_phy_ctlr_1		= 0x00000007
+};
+
+static const struct emif_regs evm_ddr2_emif1_regs = {
+	.sdram_config			= 0x40801ab2,
+	.ref_ctrl			= 0x10000c30,
+	.sdram_tim1			= 0x0aaaf552,
+	.sdram_tim2			= 0x043631d2,
+	.sdram_tim3			= 0x00000327,
+	.emif_ddr_phy_ctlr_1		= 0x00000007
+};
+
+const struct dmm_lisa_map_regs evm_lisa_map_regs = {
+	.dmm_lisa_map_0			= 0x00000000,
+	.dmm_lisa_map_1			= 0x00000000,
+	.dmm_lisa_map_2			= 0x806c0300,
+	.dmm_lisa_map_3			= 0x806c0300,
+};
+
+static const struct ddr_data evm_ddr2_data = {
+	.datardsratio0		= ((0x35<<10) | (0x35<<0)),
+	.datawdsratio0		= ((0x20<<10) | (0x20<<0)),
+	.datawiratio0		= ((0<<10) | (0<<0)),
+	.datagiratio0		= ((0<<10) | (0<<0)),
+	.datafwsratio0		= ((0x90<<10) | (0x90<<0)),
+	.datawrsratio0		= ((0x50<<10) | (0x50<<0)),
+	.datauserank0delay	= 1,
+	.datadldiff0		= 0x4,
+};
+#endif
+
+/*
+ * early system init of muxing and clocks.
+ */
+void s_init(void)
+{
+#ifdef CONFIG_SPL_BUILD
+	/* WDT1 is already running when the bootloader gets control
+	 * Disable it to avoid "random" resets
+	 */
+	wdt_disable();
+
+	/* Setup the PLLs and the clocks for the peripherals */
+	pll_init();
+
+	/* Enable RTC32K clock */
+	rtc32k_enable();
+
+	/* Set UART pins */
+	enable_uart0_pin_mux();
+
+	/* Set MMC pins */
+	enable_mmc1_pin_mux();
+
+	/* Enable UART */
+	uart_enable();
+
+	gd = &gdata;
+
+	preloader_console_init();
+
+	config_dmm(&evm_lisa_map_regs);
+
+	config_ddr(0, 0, &evm_ddr2_data, &evm_ddr2_cctrl_data,
+		   &evm_ddr2_emif0_regs, 0);
+	config_ddr(0, 0, &evm_ddr2_data, &evm_ddr2_cctrl_data,
+		   &evm_ddr2_emif1_regs, 1);
+#endif
+}
+
+/*
+ * Basic board specific setup.  Pinmux has been handled already.
+ */
+int board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
+	return 0;
+}
+
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
+int board_mmc_init(bd_t *bis)
+{
+	omap_mmc_init(1, 0, 0, -1, -1);
+
+	return 0;
+}
+#endif
diff --git a/board/ti/ti814x/evm.h b/board/ti/ti814x/evm.h
new file mode 100644
index 0000000000..40f8710c89
--- /dev/null
+++ b/board/ti/ti814x/evm.h
@@ -0,0 +1,7 @@
+#ifndef _EVM_H
+#define _EVM_H
+
+void enable_uart0_pin_mux(void);
+void enable_mmc1_pin_mux(void);
+
+#endif /* _EVM_H */
diff --git a/board/ti/ti814x/mux.c b/board/ti/ti814x/mux.c
new file mode 100644
index 0000000000..137acb4523
--- /dev/null
+++ b/board/ti/ti814x/mux.c
@@ -0,0 +1,51 @@
+/*
+ * mux.c
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <common.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/mux.h>
+#include <asm/io.h>
+#include <i2c.h>
+#include "evm.h"
+
+static struct module_pin_mux uart0_pin_mux[] = {
+	{OFFSET(pincntl70), PULLUP_EN | MODE(0x01)},	/* UART0_RXD */
+	{OFFSET(pincntl71), PULLUP_EN | MODE(0x01)},	/* UART0_TXD */
+	{-1},
+};
+
+static struct module_pin_mux mmc1_pin_mux[] = {
+	{OFFSET(pincntl1), PULLUP_EN | MODE(0x01)},	/* SD1_CLK */
+	{OFFSET(pincntl2), PULLUP_EN | MODE(0x01)},	/* SD1_CMD */
+	{OFFSET(pincntl3), PULLUP_EN | MODE(0x01)},	/* SD1_DAT[0] */
+	{OFFSET(pincntl4), PULLUP_EN | MODE(0x01)},	/* SD1_DAT[1] */
+	{OFFSET(pincntl5), PULLUP_EN | MODE(0x01)},	/* SD1_DAT[2] */
+	{OFFSET(pincntl6), PULLUP_EN | MODE(0x01)},	/* SD1_DAT[3] */
+	{OFFSET(pincntl74), PULLUP_EN | MODE(0x40)},	/* SD1_POW */
+	{OFFSET(pincntl75), MODE(0x40)},		/* SD1_SDWP */
+	{OFFSET(pincntl80), PULLUP_EN | MODE(0x02)},	/* SD1_SDCD */
+	{-1},
+};
+
+void enable_uart0_pin_mux(void)
+{
+	configure_module_pin_mux(uart0_pin_mux);
+}
+
+void enable_mmc1_pin_mux(void)
+{
+	configure_module_pin_mux(mmc1_pin_mux);
+}