avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/x86/cpu/quark/mrc_util.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2013, Intel Corporation
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * Ported from Intel released Quark UEFI BIOS
+ * QuarkSocPkg/QuarkNorthCluster/MemoryInit/Pei
+ *
+ * SPDX-License-Identifier:	Intel
+ */
+
+#ifndef _MRC_UTIL_H_
+#define _MRC_UTIL_H_
+
+/* Turn on this macro to enable MRC debugging output */
+#undef  MRC_DEBUG
+
+/* MRC Debug Support */
+#define DPF		debug_cond
+
+/* debug print type */
+
+#ifdef MRC_DEBUG
+#define D_ERROR		0x0001
+#define D_INFO		0x0002
+#define D_REGRD		0x0004
+#define D_REGWR		0x0008
+#define D_FCALL		0x0010
+#define D_TRN		0x0020
+#define D_TIME		0x0040
+#else
+#define D_ERROR		0
+#define D_INFO		0
+#define D_REGRD		0
+#define D_REGWR		0
+#define D_FCALL		0
+#define D_TRN		0
+#define D_TIME		0
+#endif
+
+#define ENTERFN(...)	debug_cond(D_FCALL, "<%s>\n", __func__)
+#define LEAVEFN(...)	debug_cond(D_FCALL, "</%s>\n", __func__)
+#define REPORTFN(...)	debug_cond(D_FCALL, "<%s/>\n", __func__)
+
+/* Message Bus Port */
+#define MEM_CTLR	0x01
+#define HOST_BRIDGE	0x03
+#define MEM_MGR		0x05
+#define HTE		0x11
+#define DDRPHY		0x12
+
+/* number of sample points */
+#define SAMPLE_CNT	3
+/* number of PIs to increment per sample */
+#define SAMPLE_DLY	26
+
+enum {
+	/* indicates to decrease delays when looking for edge */
+	BACKWARD,
+	/* indicates to increase delays when looking for edge */
+	FORWARD
+};
+
+enum {
+	RCVN,
+	WDQS,
+	WDQX,
+	RDQS,
+	VREF,
+	WCMD,
+	WCTL,
+	WCLK,
+	MAX_ALGOS,
+};
+
+void mrc_write_mask(u32 unit, u32 addr, u32 data, u32 mask);
+void mrc_alt_write_mask(u32 unit, u32 addr, u32 data, u32 mask);
+void mrc_post_code(uint8_t major, uint8_t minor);
+void delay_n(uint32_t ns);
+void delay_u(uint32_t ms);
+void select_mem_mgr(void);
+void select_hte(void);
+void dram_init_command(uint32_t data);
+void dram_wake_command(void);
+void training_message(uint8_t channel, uint8_t rank, uint8_t byte_lane);
+
+void set_rcvn(uint8_t channel, uint8_t rank,
+	      uint8_t byte_lane, uint32_t pi_count);
+uint32_t get_rcvn(uint8_t channel, uint8_t rank, uint8_t byte_lane);
+void set_rdqs(uint8_t channel, uint8_t rank,
+	      uint8_t byte_lane, uint32_t pi_count);
+uint32_t get_rdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane);
+void set_wdqs(uint8_t channel, uint8_t rank,
+	      uint8_t byte_lane, uint32_t pi_count);
+uint32_t get_wdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane);
+void set_wdq(uint8_t channel, uint8_t rank,
+	     uint8_t byte_lane, uint32_t pi_count);
+uint32_t get_wdq(uint8_t channel, uint8_t rank, uint8_t byte_lane);
+void set_wcmd(uint8_t channel, uint32_t pi_count);
+uint32_t get_wcmd(uint8_t channel);
+void set_wclk(uint8_t channel, uint8_t rank, uint32_t pi_count);
+uint32_t get_wclk(uint8_t channel, uint8_t rank);
+void set_wctl(uint8_t channel, uint8_t rank, uint32_t pi_count);
+uint32_t get_wctl(uint8_t channel, uint8_t rank);
+void set_vref(uint8_t channel, uint8_t byte_lane, uint32_t setting);
+uint32_t get_vref(uint8_t channel, uint8_t byte_lane);
+
+uint32_t get_addr(uint8_t channel, uint8_t rank);
+uint32_t sample_dqs(struct mrc_params *mrc_params, uint8_t channel,
+		    uint8_t rank, bool rcvn);
+void find_rising_edge(struct mrc_params *mrc_params, uint32_t delay[],
+		      uint8_t channel, uint8_t rank, bool rcvn);
+uint32_t byte_lane_mask(struct mrc_params *mrc_params);
+uint32_t check_rw_coarse(struct mrc_params *mrc_params, uint32_t address);
+uint32_t check_bls_ex(struct mrc_params *mrc_params, uint32_t address);
+void lfsr32(uint32_t *lfsr_ptr);
+void clear_pointers(void);
+void print_timings(struct mrc_params *mrc_params);
+
+#endif /* _MRC_UTIL_H_ */