From ea7b96b6aa06fea40547333e8796f8ea9a856d67 Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Fri, 15 Mar 2013 10:07:10 +0000 Subject: ti814x_evm: add ti814x evm board support Add TI814X EVM board directory, config file, and MAINTAINERS entry. Enable build. Signed-off-by: Matt Porter Reviewed-by: Tom Rini [trini: Adapt to recent omap_hsmmc requirements, Matt re-tested] Signed-off-by: Tom Rini --- board/ti/ti814x/Makefile | 46 +++++++++++ board/ti/ti814x/evm.c | 198 +++++++++++++++++++++++++++++++++++++++++++++++ board/ti/ti814x/evm.h | 7 ++ board/ti/ti814x/mux.c | 51 ++++++++++++ 4 files changed, 302 insertions(+) create mode 100644 board/ti/ti814x/Makefile create mode 100644 board/ti/ti814x/evm.c create mode 100644 board/ti/ti814x/evm.h create mode 100644 board/ti/ti814x/mux.c (limited to 'board') 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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 +#include +#include +#include +#include +#include +#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); +} -- cgit v1.2.1