aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/board/renesas/stout/stout.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/board/renesas/stout/stout.c')
-rw-r--r--roms/u-boot/board/renesas/stout/stout.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/roms/u-boot/board/renesas/stout/stout.c b/roms/u-boot/board/renesas/stout/stout.c
new file mode 100644
index 000000000..3fdf936dd
--- /dev/null
+++ b/roms/u-boot/board/renesas/stout/stout.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * board/renesas/stout/stout.c
+ * This file is Stout board support.
+ *
+ * Copyright (C) 2015 Renesas Electronics Europe GmbH
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ * Copyright (C) 2015 Cogent Embedded, Inc.
+ */
+
+#include <common.h>
+#include <env.h>
+#include <init.h>
+#include <malloc.h>
+#include <netdev.h>
+#include <dm.h>
+#include <asm/global_data.h>
+#include <dm/platform_data/serial_sh.h>
+#include <env_internal.h>
+#include <asm/processor.h>
+#include <asm/mach-types.h>
+#include <asm/io.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/arch/rmobile.h>
+#include <asm/arch/rcar-mstp.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/sh_sdhi.h>
+#include <miiphy.h>
+#include <i2c.h>
+#include <mmc.h>
+#include "qos.h"
+#include "cpld.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define CLK2MHZ(clk) (clk / 1000 / 1000)
+void s_init(void)
+{
+ struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
+ struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
+
+ /* Watchdog init */
+ writel(0xA5A5A500, &rwdt->rwtcsra);
+ writel(0xA5A5A500, &swdt->swtcsra);
+
+ /* CPU frequency setting. Set to 1.4GHz */
+ if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) {
+ u32 stat = 0;
+ u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1)
+ << PLL0_STC_BIT;
+ clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc);
+
+ do {
+ stat = readl(PLLECR) & PLL0ST;
+ } while (stat == 0x0);
+ }
+
+ /* QoS(Quality-of-Service) Init */
+ qos_init();
+}
+
+#define TMU0_MSTP125 BIT(25)
+
+#define SD2CKCR 0xE6150078
+#define SD2_97500KHZ 0x7
+
+int board_early_init_f(void)
+{
+ /* TMU0 */
+ mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
+
+ /*
+ * SD0 clock is set to 97.5MHz by default.
+ * Set SD2 to the 97.5MHz as well.
+ */
+ writel(SD2_97500KHZ, SD2CKCR);
+
+ return 0;
+}
+
+#define ETHERNET_PHY_RESET 123 /* GPIO 3 31 */
+
+int board_init(void)
+{
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+ cpld_init();
+
+ /* Force ethernet PHY out of reset */
+ gpio_request(ETHERNET_PHY_RESET, "phy_reset");
+ gpio_direction_output(ETHERNET_PHY_RESET, 0);
+ mdelay(20);
+ gpio_direction_output(ETHERNET_PHY_RESET, 1);
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ if (fdtdec_setup_mem_size_base() != 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+int dram_init_banksize(void)
+{
+ fdtdec_setup_memory_banksize();
+
+ return 0;
+}
+
+/* Stout has KSZ8041NL/RNL */
+#define PHY_CONTROL1 0x1E
+#define PHY_LED_MODE 0xC000
+#define PHY_LED_MODE_ACK 0x4000
+int board_phy_config(struct phy_device *phydev)
+{
+ int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1);
+ ret &= ~PHY_LED_MODE;
+ ret |= PHY_LED_MODE_ACK;
+ ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret);
+
+ return 0;
+}
+
+enum env_location env_get_location(enum env_operation op, int prio)
+{
+ const u32 load_magic = 0xb33fc0de;
+
+ /* Block environment access if loaded using JTAG */
+ if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) &&
+ (op != ENVOP_INIT))
+ return ENVL_UNKNOWN;
+
+ if (prio)
+ return ENVL_UNKNOWN;
+
+ return ENVL_SPI_FLASH;
+}