[U-Boot] [PATCH 3/6] arm64: versal: Define board_late_init for versal
Michal Simek
michal.simek at xilinx.com
Tue Feb 5 09:50:03 UTC 2019
From: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
Define board_late_init which performs bootmode detection
and prepares corresponding distro boot commaand sequence.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-versal/include/mach/hardware.h | 23 ++++++
board/xilinx/versal/board.c | 111 +++++++++++++++++++++++++++
configs/xilinx_versal_mini_emmc0_defconfig | 1 +
configs/xilinx_versal_mini_emmc1_defconfig | 1 +
5 files changed, 137 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f0edb10003ba..bc0a5b4fe9a3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -892,6 +892,7 @@ config ARCH_VERSAL
select DM_MMC if MMC
select DM_SERIAL
select OF_CONTROL
+ imply BOARD_LATE_INIT
config ARCH_VF610
bool "Freescale Vybrid"
diff --git a/arch/arm/mach-versal/include/mach/hardware.h b/arch/arm/mach-versal/include/mach/hardware.h
index 23fbc3d8f536..e26beab2e9cd 100644
--- a/arch/arm/mach-versal/include/mach/hardware.h
+++ b/arch/arm/mach-versal/include/mach/hardware.h
@@ -51,3 +51,26 @@ struct rpu_regs {
};
#define rpu_base ((struct rpu_regs *)VERSAL_RPU_BASEADDR)
+
+#define VERSAL_CRP_BASEADDR 0xF1260000
+
+struct crp_regs {
+ u32 reserved0[128];
+ u32 boot_mode_usr;
+};
+
+#define crp_base ((struct crp_regs *)VERSAL_CRP_BASEADDR)
+
+/* Bootmode setting values */
+#define BOOT_MODES_MASK 0x0000000F
+#define QSPI_MODE_24BIT 0x00000001
+#define QSPI_MODE_32BIT 0x00000002
+#define SD_MODE 0x00000003 /* sd 0 */
+#define SD_MODE1 0x00000005 /* sd 1 */
+#define EMMC_MODE 0x00000006
+#define USB_MODE 0x00000007
+#define OSPI_MODE 0x00000008
+#define SD1_LSHFT_MODE 0x0000000E /* SD1 Level shifter */
+#define JTAG_MODE 0x00000000
+#define BOOT_MODE_USE_ALT 0x100
+#define BOOT_MODE_ALT_SHIFT 12
diff --git a/board/xilinx/versal/board.c b/board/xilinx/versal/board.c
index 2b3a40b73a5f..fd6c8d8cb737 100644
--- a/board/xilinx/versal/board.c
+++ b/board/xilinx/versal/board.c
@@ -9,6 +9,8 @@
#include <malloc.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
+#include <dm/device.h>
+#include <dm/uclass.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -61,6 +63,115 @@ int board_early_init_r(void)
return 0;
}
+int board_late_init(void)
+{
+ u32 reg = 0;
+ u8 bootmode;
+ struct udevice *dev;
+ int bootseq = -1;
+ int bootseq_len = 0;
+ int env_targets_len = 0;
+ const char *mode;
+ char *new_targets;
+ char *env_targets;
+
+ if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
+ debug("Saved variables - Skipping\n");
+ return 0;
+ }
+
+ reg = readl(&crp_base->boot_mode_usr);
+
+ if (reg >> BOOT_MODE_ALT_SHIFT)
+ reg >>= BOOT_MODE_ALT_SHIFT;
+
+ bootmode = reg & BOOT_MODES_MASK;
+
+ puts("Bootmode: ");
+ switch (bootmode) {
+ case JTAG_MODE:
+ puts("JTAG_MODE\n");
+ mode = "pxe dhcp";
+ break;
+ case QSPI_MODE_24BIT:
+ puts("QSPI_MODE_24\n");
+ mode = "xspi0";
+ break;
+ case QSPI_MODE_32BIT:
+ puts("QSPI_MODE_32\n");
+ mode = "xspi0";
+ break;
+ case OSPI_MODE:
+ puts("OSPI_MODE\n");
+ mode = "xspi0";
+ break;
+ case EMMC_MODE:
+ puts("EMMC_MODE\n");
+ mode = "mmc0";
+ break;
+ case SD_MODE:
+ puts("SD_MODE\n");
+ if (uclass_get_device_by_name(UCLASS_MMC,
+ "sdhci at f1040000", &dev)) {
+ puts("Boot from SD0 but without SD0 enabled!\n");
+ return -1;
+ }
+ debug("mmc0 device found at %p, seq %d\n", dev, dev->seq);
+
+ mode = "mmc";
+ bootseq = dev->seq;
+ break;
+ case SD1_LSHFT_MODE:
+ puts("LVL_SHFT_");
+ /* fall through */
+ case SD_MODE1:
+ puts("SD_MODE1\n");
+ if (uclass_get_device_by_name(UCLASS_MMC,
+ "sdhci at f1050000", &dev)) {
+ puts("Boot from SD1 but without SD1 enabled!\n");
+ return -1;
+ }
+ debug("mmc1 device found at %p, seq %d\n", dev, dev->seq);
+
+ mode = "mmc";
+ bootseq = dev->seq;
+ break;
+ default:
+ mode = "";
+ printf("Invalid Boot Mode:0x%x\n", bootmode);
+ break;
+ }
+
+ if (bootseq >= 0) {
+ bootseq_len = snprintf(NULL, 0, "%i", bootseq);
+ debug("Bootseq len: %x\n", bootseq_len);
+ }
+
+ /*
+ * One terminating char + one byte for space between mode
+ * and default boot_targets
+ */
+ env_targets = env_get("boot_targets");
+ if (env_targets)
+ env_targets_len = strlen(env_targets);
+
+ new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
+ bootseq_len);
+ if (!new_targets)
+ return -ENOMEM;
+
+ if (bootseq >= 0)
+ sprintf(new_targets, "%s%x %s", mode, bootseq,
+ env_targets ? env_targets : "");
+ else
+ sprintf(new_targets, "%s %s", mode,
+ env_targets ? env_targets : "");
+
+ env_set("boot_targets", new_targets);
+
+ return 0;
+}
+
int dram_init_banksize(void)
{
fdtdec_setup_memory_banksize();
diff --git a/configs/xilinx_versal_mini_emmc0_defconfig b/configs/xilinx_versal_mini_emmc0_defconfig
index d647d6839bcc..3af399cf5ad1 100644
--- a/configs/xilinx_versal_mini_emmc0_defconfig
+++ b/configs/xilinx_versal_mini_emmc0_defconfig
@@ -7,6 +7,7 @@ CONFIG_SYS_MALLOC_LEN=0x80000
CONFIG_COUNTER_FREQUENCY=2720000
CONFIG_NR_DRAM_BANKS=1
CONFIG_SYS_CONSOLE_INFO_QUIET=y
+# CONFIG_BOARD_LATE_INIT is not set
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_BOARD_EARLY_INIT_R=y
# CONFIG_CMDLINE_EDITING is not set
diff --git a/configs/xilinx_versal_mini_emmc1_defconfig b/configs/xilinx_versal_mini_emmc1_defconfig
index 4a8331123598..e2ffa294d040 100644
--- a/configs/xilinx_versal_mini_emmc1_defconfig
+++ b/configs/xilinx_versal_mini_emmc1_defconfig
@@ -7,6 +7,7 @@ CONFIG_SYS_MALLOC_LEN=0x80000
CONFIG_COUNTER_FREQUENCY=2720000
CONFIG_NR_DRAM_BANKS=1
CONFIG_SYS_CONSOLE_INFO_QUIET=y
+# CONFIG_BOARD_LATE_INIT is not set
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_BOARD_EARLY_INIT_R=y
# CONFIG_CMDLINE_EDITING is not set
--
1.9.1
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