dm: tegra: Enable driver model in SPL and adjust the GPIO driver

[u-boot] / board / samsung / common / board.c

diff --git a/board/samsung/common/board.c b/board/samsung/common/board.c
index e1fc123fcc4ea154cd4e189460a8afb3e1713399..2e17da8a7a44766d8431ee8510c15f710caa2b92 100644 (file)
--- a/board/samsung/common/board.c
+++ b/board/samsung/common/board.c
@@ -28,19 +28,15 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int __exynos_early_init_f(void)
+__weak int exynos_early_init_f(void)
 {
        return 0;
 }
-int exynos_early_init_f(void)
-       __attribute__((weak, alias("__exynos_early_init_f")));
 
-int __exynos_power_init(void)
+__weak int exynos_power_init(void)
 {
        return 0;
 }
-int exynos_power_init(void)
-       __attribute__((weak, alias("__exynos_power_init")));
 
 #if defined CONFIG_EXYNOS_TMU
 /* Boot Time Thermal Analysis for SoC temperature threshold breach */
@@ -86,13 +82,19 @@ int board_init(void)
        }
        boot_temp_check();
 #endif
+#ifdef CONFIG_TZSW_RESERVED_DRAM_SIZE
+       /* The last few MB of memory can be reserved for secure firmware */
+       ulong size = CONFIG_TZSW_RESERVED_DRAM_SIZE;
 
+       gd->ram_size -= size;
+       gd->bd->bi_dram[CONFIG_NR_DRAM_BANKS - 1].size -= size;
+#endif
        return exynos_init();
 }
 
 int dram_init(void)
 {
-       int i;
+       unsigned int i;
        u32 addr;
 
        for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
@@ -104,7 +106,7 @@ int dram_init(void)
 
 void dram_init_banksize(void)
 {
-       int i;
+       unsigned int i;
        u32 addr, size;
 
        for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
@@ -342,9 +344,6 @@ int arch_early_init_r(void)
 #ifdef CONFIG_MISC_INIT_R
 int misc_init_r(void)
 {
-#ifdef CONFIG_SET_DFU_ALT_INFO
-       set_dfu_alt_info();
-#endif
 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
        set_board_info();
 #endif
@@ -359,3 +358,31 @@ int misc_init_r(void)
        return 0;
 }
 #endif
+
+void reset_misc(void)
+{
+       struct gpio_desc gpio = {};
+       int node;
+
+       node = fdt_node_offset_by_compatible(gd->fdt_blob, 0,
+                       "samsung,emmc-reset");
+       if (node < 0)
+               return;
+
+       gpio_request_by_name_nodev(gd->fdt_blob, node, "reset-gpio", 0, &gpio,
+                                  GPIOD_IS_OUT);
+
+       if (dm_gpio_is_valid(&gpio)) {
+               /*
+                * Reset eMMC
+                *
+                * FIXME: Need to optimize delay time. Minimum 1usec pulse is
+                *        required by 'JEDEC Standard No.84-A441' (eMMC)
+                *        document but real delay time is expected to greater
+                *        than 1usec.
+                */
+               dm_gpio_set_value(&gpio, 0);
+               mdelay(10);
+               dm_gpio_set_value(&gpio, 1);
+       }
+}