aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/board/BuR/brppt1/board.c
diff options
context:
space:
mode:
authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/BuR/brppt1/board.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/BuR/brppt1/board.c')
-rw-r--r--roms/u-boot/board/BuR/brppt1/board.c193
1 files changed, 193 insertions, 0 deletions
diff --git a/roms/u-boot/board/BuR/brppt1/board.c b/roms/u-boot/board/BuR/brppt1/board.c
new file mode 100644
index 000000000..7df37e4e6
--- /dev/null
+++ b/roms/u-boot/board/BuR/brppt1/board.c
@@ -0,0 +1,193 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * board.c
+ *
+ * Board functions for B&R BRPPT1
+ *
+ * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
+ * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
+ *
+ */
+
+#include <common.h>
+#include <bootcount.h>
+#include <env.h>
+#include <errno.h>
+#include <init.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/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+#include <asm/gpio.h>
+#include <i2c.h>
+#include <power/tps65217.h>
+#include "../common/bur_common.h"
+#include <watchdog.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* --------------------------------------------------------------------------*/
+/* -- defines for GPIO -- */
+#define REPSWITCH (0+20) /* GPIO0_20 */
+
+#if defined(CONFIG_SPL_BUILD)
+/* TODO: check ram-timing ! */
+static const struct ddr_data ddr3_data = {
+ .datardsratio0 = MT41K256M16HA125E_RD_DQS,
+ .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
+ .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
+ .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
+};
+
+static const struct cmd_control ddr3_cmd_ctrl_data = {
+ .cmd0csratio = MT41K256M16HA125E_RATIO,
+ .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+ .cmd1csratio = MT41K256M16HA125E_RATIO,
+ .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+ .cmd2csratio = MT41K256M16HA125E_RATIO,
+ .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+};
+
+static struct emif_regs ddr3_emif_reg_data = {
+ .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
+ .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
+ .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
+ .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
+ .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
+ .zq_config = MT41K256M16HA125E_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
+};
+
+static const struct ctrl_ioregs ddr3_ioregs = {
+ .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
+#define OSC (V_OSCK/1000000)
+static const struct dpll_params dpll_ddr3 = { 400, OSC-1, 1, -1, -1, -1, -1};
+
+void am33xx_spl_board_init(void)
+{
+ int rc;
+
+ struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER;
+ /*struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP;*/
+ struct cm_dpll *const cmdpll = (struct cm_dpll *)CM_DPLL;
+
+ /*
+ * in TRM they write a reset value of 1 (=CLK_M_OSC) for the
+ * CLKSEL_TIMER6_CLK Register, in fact reset value is 0, so we need set
+ * the source of timer6 clk to CLK_M_OSC
+ */
+ writel(0x01, &cmdpll->clktimer6clk);
+
+ /* enable additional clocks of modules which are accessed later */
+ u32 *const clk_domains[] = {
+ &cmper->lcdcclkstctrl,
+ 0
+ };
+
+ u32 *const clk_modules_tsspecific[] = {
+ &cmper->lcdclkctrl,
+ &cmper->timer5clkctrl,
+ &cmper->timer6clkctrl,
+ 0
+ };
+ do_enable_clocks(clk_domains, clk_modules_tsspecific, 1);
+
+ /* setup I2C */
+ enable_i2c_pin_mux();
+
+ pmicsetup(0, 0);
+
+ /* peripheral reset */
+ rc = gpio_request(64 + 29, "GPMC_WAIT1");
+ if (rc != 0)
+ printf("cannot request GPMC_WAIT1 GPIO!\n");
+ rc = gpio_direction_output(64 + 29, 1);
+ if (rc != 0)
+ printf("cannot set GPMC_WAIT1 GPIO!\n");
+
+ rc = gpio_request(64 + 28, "GPMC_WAIT0");
+ if (rc != 0)
+ printf("cannot request GPMC_WAIT0 GPIO!\n");
+ rc = gpio_direction_output(64 + 28, 1);
+ if (rc != 0)
+ printf("cannot set GPMC_WAIT0 GPIO!\n");
+
+}
+
+const struct dpll_params *get_dpll_ddr_params(void)
+{
+ return &dpll_ddr3;
+}
+
+void sdram_init(void)
+{
+ config_ddr(400, &ddr3_ioregs,
+ &ddr3_data,
+ &ddr3_cmd_ctrl_data,
+ &ddr3_emif_reg_data, 0);
+}
+#endif /* CONFIG_SPL_BUILD */
+
+/* Basic board specific setup. Pinmux has been handled already. */
+int board_init(void)
+{
+#if defined(CONFIG_HW_WATCHDOG)
+ hw_watchdog_init();
+#endif
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+#ifdef CONFIG_MTD_RAW_NAND
+ gpmc_init();
+#endif
+ return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+static char *bootmodeascii[16] = {
+ "BOOT", "reserved", "reserved", "reserved",
+ "RUN", "reserved", "reserved", "reserved",
+ "reserved", "reserved", "reserved", "reserved",
+ "PME", "reserved", "reserved", "DIAG",
+};
+
+int board_late_init(void)
+{
+ unsigned char bmode = 0;
+ ulong bootcount = 0;
+ int rc;
+
+ bootcount = bootcount_load() & 0xF;
+
+ rc = gpio_request(REPSWITCH, "REPSWITCH");
+
+ if (rc != 0 || gpio_get_value(REPSWITCH) == 0 || bootcount == 12)
+ bmode = 12;
+ else if (bootcount > 0)
+ bmode = 0;
+ else
+ bmode = 4;
+
+ printf("Mode: %s\n", bootmodeascii[bmode & 0x0F]);
+ env_set_ulong("b_mode", bmode);
+
+ /* get sure that bootcmd isn't affected by any bootcount value */
+ env_set_ulong("bootlimit", 0);
+
+ return 0;
+}
+#endif /* CONFIG_BOARD_LATE_INIT */