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/powerpc/cpu/mpc512x/cpu_init.c

@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ * Copyright (C) 2007-2009 DENX Software Engineering
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Derived from the MPC83xx code.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/mpc512x.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Set up the memory map, initialize registers,
+ */
+void cpu_init_f (volatile immap_t * im)
+{
+	u32 ips_div;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+
+	/* Clear initial global data */
+	memset ((void *) gd, 0, sizeof (gd_t));
+
+	/* Local Window and chip select configuration */
+#if defined(CONFIG_SYS_CS0_START) && defined(CONFIG_SYS_CS0_SIZE)
+	out_be32(&im->sysconf.lpcs0aw,
+		CSAW_START(CONFIG_SYS_CS0_START) |
+		CSAW_STOP(CONFIG_SYS_CS0_START, CONFIG_SYS_CS0_SIZE));
+	sync_law(&im->sysconf.lpcs0aw);
+#endif
+#if defined(CONFIG_SYS_CS0_CFG)
+	out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS1_START) && defined(CONFIG_SYS_CS1_SIZE)
+	out_be32(&im->sysconf.lpcs1aw,
+		CSAW_START(CONFIG_SYS_CS1_START) |
+		CSAW_STOP(CONFIG_SYS_CS1_START, CONFIG_SYS_CS1_SIZE));
+	sync_law(&im->sysconf.lpcs1aw);
+#endif
+#if defined(CONFIG_SYS_CS1_CFG)
+	out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS2_START) && (defined CONFIG_SYS_CS2_SIZE)
+	out_be32(&im->sysconf.lpcs2aw,
+		CSAW_START(CONFIG_SYS_CS2_START) |
+		CSAW_STOP(CONFIG_SYS_CS2_START, CONFIG_SYS_CS2_SIZE));
+	sync_law(&im->sysconf.lpcs2aw);
+#endif
+#if defined(CONFIG_SYS_CS2_CFG)
+	out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS3_START) && defined(CONFIG_SYS_CS3_SIZE)
+	out_be32(&im->sysconf.lpcs3aw,
+		CSAW_START(CONFIG_SYS_CS3_START) |
+		CSAW_STOP(CONFIG_SYS_CS3_START, CONFIG_SYS_CS3_SIZE));
+	sync_law(&im->sysconf.lpcs3aw);
+#endif
+#if defined(CONFIG_SYS_CS3_CFG)
+	out_be32(&im->lpc.cs_cfg[3], CONFIG_SYS_CS3_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS4_START) && defined(CONFIG_SYS_CS4_SIZE)
+	out_be32(&im->sysconf.lpcs4aw,
+		CSAW_START(CONFIG_SYS_CS4_START) |
+		CSAW_STOP(CONFIG_SYS_CS4_START, CONFIG_SYS_CS4_SIZE));
+	sync_law(&im->sysconf.lpcs4aw);
+#endif
+#if defined(CONFIG_SYS_CS4_CFG)
+	out_be32(&im->lpc.cs_cfg[4], CONFIG_SYS_CS4_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS5_START) && defined(CONFIG_SYS_CS5_SIZE)
+	out_be32(&im->sysconf.lpcs5aw,
+		CSAW_START(CONFIG_SYS_CS5_START) |
+		CSAW_STOP(CONFIG_SYS_CS5_START, CONFIG_SYS_CS5_SIZE));
+	sync_law(&im->sysconf.lpcs5aw);
+#endif
+#if defined(CONFIG_SYS_CS5_CFG)
+	out_be32(&im->lpc.cs_cfg[5], CONFIG_SYS_CS5_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS6_START) && defined(CONFIG_SYS_CS6_SIZE)
+	out_be32(&im->sysconf.lpcs6aw,
+		CSAW_START(CONFIG_SYS_CS6_START) |
+		CSAW_STOP(CONFIG_SYS_CS6_START, CONFIG_SYS_CS6_SIZE));
+	sync_law(&im->sysconf.lpcs6aw);
+#endif
+#if defined(CONFIG_SYS_CS6_CFG)
+	out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS7_START) && defined(CONFIG_SYS_CS7_SIZE)
+	out_be32(&im->sysconf.lpcs7aw,
+		CSAW_START(CONFIG_SYS_CS7_START) |
+		CSAW_STOP(CONFIG_SYS_CS7_START, CONFIG_SYS_CS7_SIZE));
+	sync_law(&im->sysconf.lpcs7aw);
+#endif
+#if defined(CONFIG_SYS_CS7_CFG)
+	out_be32(&im->lpc.cs_cfg[7], CONFIG_SYS_CS7_CFG);
+#endif
+
+#if defined CONFIG_SYS_CS_ALETIMING
+	if (SVR_MJREV(in_be32(&im->sysconf.spridr)) >= 2)
+		out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
+#endif
+#if defined CONFIG_SYS_CS_BURST
+	out_be32(&im->lpc.cs_bcr, CONFIG_SYS_CS_BURST);
+#endif
+#if defined CONFIG_SYS_CS_DEADCYCLE
+	out_be32(&im->lpc.cs_dccr, CONFIG_SYS_CS_DEADCYCLE);
+#endif
+#if defined CONFIG_SYS_CS_HOLDCYCLE
+	out_be32(&im->lpc.cs_hccr, CONFIG_SYS_CS_HOLDCYCLE);
+#endif
+
+	/* system performance tweaking */
+
+#ifdef CONFIG_SYS_ACR_PIPE_DEP
+	/* Arbiter pipeline depth */
+	out_be32(&im->arbiter.acr,
+		(im->arbiter.acr & ~ACR_PIPE_DEP) |
+		(CONFIG_SYS_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT)
+	);
+#endif
+
+#ifdef CONFIG_SYS_ACR_RPTCNT
+	/* Arbiter repeat count */
+	out_be32(im->arbiter.acr,
+		(im->arbiter.acr & ~(ACR_RPTCNT)) |
+		(CONFIG_SYS_ACR_RPTCNT << ACR_RPTCNT_SHIFT)
+	);
+#endif
+
+	/* RSR - Reset Status Register - clear all status */
+	gd->arch.reset_status = im->reset.rsr;
+	out_be32(&im->reset.rsr, ~RSR_RES);
+
+	/*
+	 * RMR - Reset Mode Register - enable checkstop reset
+	 */
+	out_be32(&im->reset.rmr, RMR_CSRE & (1 << RMR_CSRE_SHIFT));
+
+	/* Set IPS-CSB divider: IPS = 1/2 CSB */
+	ips_div = in_be32(&im->clk.scfr[0]);
+	ips_div &= ~(SCFR1_IPS_DIV_MASK);
+	ips_div |= SCFR1_IPS_DIV << SCFR1_IPS_DIV_SHIFT;
+	out_be32(&im->clk.scfr[0], ips_div);
+
+#ifdef SCFR1_LPC_DIV
+	clrsetbits_be32(&im->clk.scfr[0], SCFR1_LPC_DIV_MASK,
+			SCFR1_LPC_DIV << SCFR1_LPC_DIV_SHIFT);
+#endif
+
+#ifdef SCFR1_NFC_DIV
+	clrsetbits_be32(&im->clk.scfr[0], SCFR1_NFC_DIV_MASK,
+			SCFR1_NFC_DIV << SCFR1_NFC_DIV_SHIFT);
+#endif
+
+#ifdef SCFR1_DIU_DIV
+	clrsetbits_be32(&im->clk.scfr[0], SCFR1_DIU_DIV_MASK,
+			SCFR1_DIU_DIV << SCFR1_DIU_DIV_SHIFT);
+#endif
+
+	/*
+	 * Enable Time Base/Decrementer
+	 *
+	 * NOTICE: TB needs to be enabled as early as possible in order to
+	 * have udelay() working; if not enabled, usually leads to a hang, like
+	 * during FLASH chip identification etc.
+	 */
+	setbits_be32(&im->sysconf.spcr, SPCR_TBEN);
+
+	/*
+	 * Enable clocks
+	 */
+	out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
+	out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
+#if defined(CONFIG_FSL_IIM) || defined(CONFIG_CMD_FUSE)
+	setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
+#endif
+}
+
+int cpu_init_r (void)
+{
+	return 0;
+}