spl: eMMC/SD: Provide one __weak spl_boot_mode() function

[people/ms/u-boot.git] / arch / arm / cpu / armv8 / fsl-layerscape / spl.c

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
index ba551aaa6e89ddfc048fdddab3ff93115797af17..3a74040b9747f096057e9f7206c3dcebace0778d 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
@@ -8,8 +8,10 @@
 #include <spl.h>
 #include <asm/io.h>
 #include <fsl_ifc.h>
-#include <fsl_csu.h>
 #include <i2c.h>
+#include <fsl_csu.h>
+#include <asm/arch/fdt.h>
+#include <asm/arch/ppa.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -24,56 +26,106 @@ u32 spl_boot_device(void)
        return 0;
 }
 
-u32 spl_boot_mode(void)
+#ifdef CONFIG_SPL_BUILD
+
+void spl_board_init(void)
 {
-       switch (spl_boot_device()) {
-       case BOOT_DEVICE_MMC1:
-#ifdef CONFIG_SPL_FAT_SUPPORT
-               return MMCSD_MODE_FAT;
-#else
-               return MMCSD_MODE_RAW;
+#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_LSCH2)
+       /*
+        * In case of Secure Boot, the IBR configures the SMMU
+        * to allow only Secure transactions.
+        * SMMU must be reset in bypass mode.
+        * Set the ClientPD bit and Clear the USFCFG Bit
+       */
+       u32 val;
+       val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
+       out_le32(SMMU_SCR0, val);
+       val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
+       out_le32(SMMU_NSCR0, val);
+#endif
+#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
+       enable_layerscape_ns_access();
+#endif
+#ifdef CONFIG_SPL_FSL_LS_PPA
+       ppa_init();
 #endif
-       case BOOT_DEVICE_NAND:
-               return 0;
-       default:
-               puts("spl: error: unsupported device\n");
-               hang();
-       }
 }
 
-#ifdef CONFIG_SPL_BUILD
 void board_init_f(ulong dummy)
 {
-       /* Set global data pointer */
-       gd = &gdata;
        /* Clear global data */
        memset((void *)gd, 0, sizeof(gd_t));
-#ifdef CONFIG_LS2085A
-       arch_cpu_init();
-#endif
-#ifdef CONFIG_FSL_IFC
-       init_early_memctl_regs();
-#endif
        board_early_init_f();
        timer_init();
-#ifdef CONFIG_LS2085A
+#ifdef CONFIG_ARCH_LS2080A
        env_init();
 #endif
        get_clocks();
 
        preloader_console_init();
+       spl_set_bd();
 
 #ifdef CONFIG_SPL_I2C_SUPPORT
        i2c_init_all();
+#endif
+#ifdef CONFIG_VID
+       init_func_vid();
 #endif
        dram_init();
+#ifdef CONFIG_SPL_FSL_LS_PPA
+#ifndef CONFIG_SYS_MEM_RESERVE_SECURE
+#error Need secure RAM for PPA
+#endif
+       /*
+        * Secure memory location is determined in dram_init_banksize().
+        * gd->ram_size is deducted by the size of secure ram.
+        */
+       dram_init_banksize();
 
-       /* Clear the BSS */
-       memset(__bss_start, 0, __bss_end - __bss_start);
+       /*
+        * After dram_init_bank_size(), we know U-Boot only uses the first
+        * memory bank regardless how big the memory is.
+        */
+       gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
 
-#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
-       enable_layerscape_ns_access();
-#endif
-       board_init_r(NULL, 0);
+       /*
+        * If PPA is loaded, U-Boot will resume running at EL2.
+        * Cache and MMU will be enabled. Need a place for TLB.
+        * U-Boot will be relocated to the end of available memory
+        * in first bank. At this point, we cannot know how much
+        * memory U-Boot uses. Put TLB table lower by SPL_TLB_SETBACK
+        * to avoid overlapping. As soon as the RAM version U-Boot sets
+        * up new MMU, this space is no longer needed.
+        */
+       gd->ram_top -= SPL_TLB_SETBACK;
+       gd->arch.tlb_size = PGTABLE_SIZE;
+       gd->arch.tlb_addr = (gd->ram_top - gd->arch.tlb_size) & ~(0x10000 - 1);
+       gd->arch.tlb_allocated = gd->arch.tlb_addr;
+#endif /* CONFIG_SPL_FSL_LS_PPA */
+}
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Return
+ * 0 if booting into OS is selected
+ * 1 if booting into U-Boot is selected
+ */
+int spl_start_uboot(void)
+{
+       env_init();
+       if (env_get_yesno("boot_os") != 0)
+               return 0;
+
+       return 1;
+}
+#endif /* CONFIG_SPL_OS_BOOT */
+#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
+#endif /* CONFIG_SPL_BUILD */