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authorEnric Balletbo i Serra <eballetbo@iseebcn.com>2013-04-04 22:27:58 +0000
committerTom Rini <trini@ti.com>2013-05-10 08:25:55 -0400
commit5f5c1d13d3b3bb97fae1ed8c3c9e35b4af0f19e5 (patch)
treed7d47d40d311658b98aff40e4a50ec60da6cd59d /board/isee/igep0033/board.c
parentcc175e6353b088c6c79d8d51b56d76972aab5c65 (diff)
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ARM: Add support for IGEP COM AQUILA/CYGNUS
The IGEP COM AQUILA and CYGNUS are industrial processors modules with following highlights: o AM3352/AM3354 Texas Instruments processor o Cortex-A8 ARM CPU o 3.3 volts Inputs / Outputs use industrial o 256 MB DDR3 SDRAM / 128 Megabytes FLASH o MicroSD card reader on-board o Ethernet controller on-board o JTAG debug connector available o Designed for industrial range purposes Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Diffstat (limited to 'board/isee/igep0033/board.c')
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diff --git a/board/isee/igep0033/board.c b/board/isee/igep0033/board.c
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+++ b/board/isee/igep0033/board.c
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+/*
+ * Board functions for IGEP COM AQUILA/CYGNUS based boards
+ *
+ * Copyright (C) 2013, ISEE 2007 SL - http://www.isee.biz/
+ *
+ * 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 <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
+#include "board.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
+#ifdef CONFIG_SPL_BUILD
+static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
+#endif
+
+/* MII mode defines */
+#define RMII_MODE_ENABLE 0x4D
+
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+/* 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 const struct ddr_data ddr3_data = {
+ .datardsratio0 = K4B2G1646EBIH9_RD_DQS,
+ .datawdsratio0 = K4B2G1646EBIH9_WR_DQS,
+ .datafwsratio0 = K4B2G1646EBIH9_PHY_FIFO_WE,
+ .datawrsratio0 = K4B2G1646EBIH9_PHY_WR_DATA,
+ .datadldiff0 = PHY_DLL_LOCK_DIFF,
+};
+
+static const struct cmd_control ddr3_cmd_ctrl_data = {
+ .cmd0csratio = K4B2G1646EBIH9_RATIO,
+ .cmd0dldiff = K4B2G1646EBIH9_DLL_LOCK_DIFF,
+ .cmd0iclkout = K4B2G1646EBIH9_INVERT_CLKOUT,
+
+ .cmd1csratio = K4B2G1646EBIH9_RATIO,
+ .cmd1dldiff = K4B2G1646EBIH9_DLL_LOCK_DIFF,
+ .cmd1iclkout = K4B2G1646EBIH9_INVERT_CLKOUT,
+
+ .cmd2csratio = K4B2G1646EBIH9_RATIO,
+ .cmd2dldiff = K4B2G1646EBIH9_DLL_LOCK_DIFF,
+ .cmd2iclkout = K4B2G1646EBIH9_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_emif_reg_data = {
+ .sdram_config = K4B2G1646EBIH9_EMIF_SDCFG,
+ .ref_ctrl = K4B2G1646EBIH9_EMIF_SDREF,
+ .sdram_tim1 = K4B2G1646EBIH9_EMIF_TIM1,
+ .sdram_tim2 = K4B2G1646EBIH9_EMIF_TIM2,
+ .sdram_tim3 = K4B2G1646EBIH9_EMIF_TIM3,
+ .zq_config = K4B2G1646EBIH9_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = K4B2G1646EBIH9_EMIF_READ_LATENCY,
+};
+#endif
+
+/*
+ * Early system init of muxing and clocks.
+ */
+void s_init(void)
+{
+ /* WDT1 is already running when the bootloader gets control
+ * Disable it to avoid "random" resets
+ */
+ writel(0xAAAA, &wdtimer->wdtwspr);
+ while (readl(&wdtimer->wdtwwps) != 0x0)
+ ;
+ writel(0x5555, &wdtimer->wdtwspr);
+ while (readl(&wdtimer->wdtwwps) != 0x0)
+ ;
+
+#ifdef CONFIG_SPL_BUILD
+ /* Setup the PLLs and the clocks for the peripherals */
+ pll_init();
+
+ /* Enable RTC32K clock */
+ rtc32k_enable();
+
+ /* UART softreset */
+ u32 regval;
+
+ enable_uart0_pin_mux();
+
+ 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);
+
+ gd = &gdata;
+
+ preloader_console_init();
+
+ /* Configure board pin mux */
+ enable_board_pin_mux();
+
+ config_ddr(303, K4B2G1646EBIH9_IOCTRL_VALUE, &ddr3_data,
+ &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
+#endif
+}
+
+/*
+ * Basic board specific setup. Pinmux has been handled already.
+ */
+int board_init(void)
+{
+ gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
+
+ gpmc_init();
+
+ return 0;
+}
+
+#if defined(CONFIG_DRIVER_TI_CPSW)
+static void cpsw_control(int enabled)
+{
+ /* VTP can be added here */
+
+ return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+ {
+ .slave_reg_ofs = 0x208,
+ .sliver_reg_ofs = 0xd80,
+ .phy_id = 0,
+ .phy_if = PHY_INTERFACE_MODE_RMII,
+ },
+};
+
+static struct cpsw_platform_data cpsw_data = {
+ .mdio_base = CPSW_MDIO_BASE,
+ .cpsw_base = CPSW_BASE,
+ .mdio_div = 0xff,
+ .channels = 8,
+ .cpdma_reg_ofs = 0x800,
+ .slaves = 1,
+ .slave_data = cpsw_slaves,
+ .ale_reg_ofs = 0xd00,
+ .ale_entries = 1024,
+ .host_port_reg_ofs = 0x108,
+ .hw_stats_reg_ofs = 0x900,
+ .mac_control = (1 << 5),
+ .control = cpsw_control,
+ .host_port_num = 0,
+ .version = CPSW_CTRL_VERSION_2,
+};
+
+int board_eth_init(bd_t *bis)
+{
+ int rv, ret = 0;
+ uint8_t mac_addr[6];
+ uint32_t mac_hi, mac_lo;
+
+ if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
+ /* try reading mac address from efuse */
+ mac_lo = readl(&cdev->macid0l);
+ mac_hi = readl(&cdev->macid0h);
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+ if (is_valid_ether_addr(mac_addr))
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ }
+
+ writel(RMII_MODE_ENABLE, &cdev->miisel);
+
+ rv = cpsw_register(&cpsw_data);
+ if (rv < 0)
+ printf("Error %d registering CPSW switch\n", rv);
+ else
+ ret += rv;
+
+ return ret;
+}
+#endif
+