From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/board/freescale/imx8mp_evk/spl.c | 145 +++++++++++++++++++++++++++
1 file changed, 145 insertions(+)
create mode 100644 roms/u-boot/board/freescale/imx8mp_evk/spl.c
(limited to 'roms/u-boot/board/freescale/imx8mp_evk/spl.c')
diff --git a/roms/u-boot/board/freescale/imx8mp_evk/spl.c b/roms/u-boot/board/freescale/imx8mp_evk/spl.c
new file mode 100644
index 000000000..a7564e9b1
--- /dev/null
+++ b/roms/u-boot/board/freescale/imx8mp_evk/spl.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2018-2019 NXP
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <hang.h>
+#include <init.h>
+#include <log.h>
+#include <spl.h>
+#include <asm/global_data.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx8mp_pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <asm/mach-imx/gpio.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/mach-imx/mxc_i2c.h>
+#include <asm/arch/ddr.h>
+#include <power/pmic.h>
+#include <power/pca9450.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int spl_board_boot_device(enum boot_device boot_dev_spl)
+{
+ return BOOT_DEVICE_BOOTROM;
+}
+
+void spl_dram_init(void)
+{
+ ddr_init(&dram_timing);
+}
+
+void spl_board_init(void)
+{
+ /*
+ * Set GIC clock to 500Mhz for OD VDD_SOC. Kernel driver does
+ * not allow to change it. Should set the clock after PMIC
+ * setting done. Default is 400Mhz (system_pll1_800m with div = 2)
+ * set by ROM for ND VDD_SOC
+ */
+ clock_enable(CCGR_GIC, 0);
+ clock_set_target_val(GIC_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(5));
+ clock_enable(CCGR_GIC, 1);
+
+ puts("Normal Boot\n");
+}
+
+#define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PE)
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX8MP_PAD_I2C1_SCL__I2C1_SCL | PC,
+ .gpio_mode = MX8MP_PAD_I2C1_SCL__GPIO5_IO14 | PC,
+ .gp = IMX_GPIO_NR(5, 14),
+ },
+ .sda = {
+ .i2c_mode = MX8MP_PAD_I2C1_SDA__I2C1_SDA | PC,
+ .gpio_mode = MX8MP_PAD_I2C1_SDA__GPIO5_IO15 | PC,
+ .gp = IMX_GPIO_NR(5, 15),
+ },
+};
+
+#ifdef CONFIG_POWER
+#define I2C_PMIC 0
+int power_init_board(void)
+{
+ struct pmic *p;
+ int ret;
+
+ ret = power_pca9450_init(I2C_PMIC, 0x25);
+ if (ret)
+ printf("power init failed");
+ p = pmic_get("PCA9450");
+ pmic_probe(p);
+
+ /* BUCKxOUT_DVS0/1 control BUCK123 output */
+ pmic_reg_write(p, PCA9450_BUCK123_DVS, 0x29);
+
+ /*
+ * increase VDD_SOC to typical value 0.95V before first
+ * DRAM access, set DVS1 to 0.85v for suspend.
+ * Enable DVS control through PMIC_STBY_REQ and
+ * set B1_ENMODE=1 (ON by PMIC_ON_REQ=H)
+ */
+#ifdef CONFIG_IMX8M_VDD_SOC_850MV
+ /* set DVS0 to 0.85v for special case*/
+ pmic_reg_write(p, PCA9450_BUCK1OUT_DVS0, 0x14);
+#else
+ pmic_reg_write(p, PCA9450_BUCK1OUT_DVS0, 0x1C);
+#endif
+ pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x14);
+ pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59);
+
+ /* Kernel uses OD/OD freq for SOC */
+ /* To avoid timing risk from SOC to ARM,increase VDD_ARM to OD voltage 0.95v */
+ pmic_reg_write(p, PCA9450_BUCK2OUT_DVS0, 0x1C);
+
+ /* set WDOG_B_CFG to cold reset */
+ pmic_reg_write(p, PCA9450_RESET_CTRL, 0xA1);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+ /* Just empty function now - can't decide what to choose */
+ debug("%s: %s\n", __func__, name);
+
+ return 0;
+}
+#endif
+
+/* Do not use BSS area in this phase */
+void board_init_f(ulong dummy)
+{
+ int ret;
+
+ arch_cpu_init();
+
+ init_uart_clk(1);
+
+ board_early_init_f();
+
+ ret = spl_early_init();
+ if (ret) {
+ debug("spl_init() failed: %d\n", ret);
+ hang();
+ }
+
+ preloader_console_init();
+
+ enable_tzc380();
+
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+
+ power_init_board();
+
+ /* DDR initialization */
+ spl_dram_init();
+}
--
cgit