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/board/freescale/p1022ds/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_P1022DS
+
+config SYS_BOARD
+	default "p1022ds"
+
+config SYS_VENDOR
+	default "freescale"
+
+config SYS_CONFIG_NAME
+	default "P1022DS"
+
+endif

u-boot/board/freescale/p1022ds/MAINTAINERS

@@ -0,0 +1,13 @@
+P1022DS BOARD
+M:	Timur Tabi <timur@freescale.com>
+S:	Maintained
+F:	board/freescale/p1022ds/
+F:	include/configs/P1022DS.h
+F:	configs/P1022DS_defconfig
+F:	configs/P1022DS_36BIT_defconfig
+F:	configs/P1022DS_36BIT_NAND_defconfig
+F:	configs/P1022DS_36BIT_SDCARD_defconfig
+F:	configs/P1022DS_36BIT_SPIFLASH_defconfig
+F:	configs/P1022DS_NAND_defconfig
+F:	configs/P1022DS_SDCARD_defconfig
+F:	configs/P1022DS_SPIFLASH_defconfig

u-boot/board/freescale/p1022ds/Makefile

@@ -0,0 +1,27 @@
+#
+# Copyright 2010 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+MINIMAL=
+
+ifdef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_INIT_MINIMAL
+MINIMAL=y
+endif
+endif
+
+ifdef MINIMAL
+obj-y	+= spl_minimal.o
+else
+ifdef CONFIG_SPL_BUILD
+obj-y	+= spl.o
+endif
+obj-y	+= p1022ds.o
+obj-y	+= ddr.o
+obj-$(CONFIG_FSL_DIU_FB) += diu.o
+endif
+
+obj-y	+= law.o
+obj-y	+= tlb.o

u-boot/board/freescale/p1022ds/README

@@ -0,0 +1,23 @@
+Overview
+--------
+P1022ds is a Low End Dual core platform supporting the P1022 processor
+of QorIQ series. P1022 is an e500 based dual core SOC.
+
+
+Pin Multiplex(hwconfig setting)
+-------------------------------
+Add the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex
+via hwconfig, i.e:
+'setenv hwconfig usb2' to enable USB2 and disable eTsec2
+'setenv hwconfig tdm' to enable TDM and disable Audio
+'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz)
+ and disable TDM
+'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio
+'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources
+ is 11MHz), disable eTsec2 and TDM
+
+Warning: TDM and AUDIO can not enable simultaneous !
+and AUDIO codec clock sources only setting as 11MHz or 12MHz !
+'setenv hwconfig 'audclk:12;tdm'	--- error !
+'setenv hwconfig 'audclk:11;tdm'	--- error !
+'setenv hwconfig 'audclk:10'		--- error !

u-boot/board/freescale/p1022ds/ddr.c

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+
+struct board_specific_parameters {
+	u32 n_ranks;
+	u32 datarate_mhz_high;
+	u32 clk_adjust;		/* Range: 0-8 */
+	u32 cpo;		/* Range: 2-31 */
+	u32 write_data_delay;	/* Range: 0-6 */
+	u32 force_2t;
+};
+
+/*
+ * This table contains all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ */
+static const struct board_specific_parameters dimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi|  clk| cpo|wrdata|2T
+	 * ranks| mhz|adjst|    | delay|
+	 */
+	{1,  549,    5,  31,     3, 0},
+	{1,  850,    5,  31,     5, 0},
+	{2,  549,    5,  31,     3, 0},
+	{2,  850,    5,  31,     5, 0},
+	{}
+};
+
+void fsl_ddr_board_options(memctl_options_t *popts, dimm_params_t *pdimm,
+			   unsigned int ctrl_num)
+{
+	const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
+	unsigned long ddr_freq;
+	unsigned int i;
+
+
+	if (ctrl_num) {
+		printf("Wrong parameter for controller number %d", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		return;
+
+	/* set odt_rd_cfg and odt_wr_cfg. */
+	for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
+		popts->cs_local_opts[i].odt_rd_cfg = 0;
+		popts->cs_local_opts[i].odt_wr_cfg = 1;
+	}
+
+	pbsp = dimm0;
+	/*
+	 * Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr
+	 * freqency and n_banks specified in board_specific_parameters table.
+	 */
+	ddr_freq = get_ddr_freq(0) / 1000000;
+	while (pbsp->datarate_mhz_high) {
+		if (pbsp->n_ranks == pdimm->n_ranks) {
+			if (ddr_freq <= pbsp->datarate_mhz_high) {
+				popts->clk_adjust = pbsp->clk_adjust;
+				popts->cpo_override = pbsp->cpo;
+				popts->write_data_delay =
+					pbsp->write_data_delay;
+				popts->twot_en = pbsp->force_2t;
+				goto found;
+			}
+			pbsp_highest = pbsp;
+		}
+		pbsp++;
+	}
+
+	if (pbsp_highest) {
+		printf("Error: board specific timing not found "
+			"for data rate %lu MT/s!\n"
+			"Trying to use the highest speed (%u) parameters\n",
+			ddr_freq, pbsp_highest->datarate_mhz_high);
+		popts->clk_adjust = pbsp->clk_adjust;
+		popts->cpo_override = pbsp->cpo;
+		popts->write_data_delay = pbsp->write_data_delay;
+		popts->twot_en = pbsp->force_2t;
+	} else {
+		panic("DIMM is not supported by this board");
+	}
+
+found:
+	popts->half_strength_driver_enable = 1;
+
+	/* Per AN4039, enable ZQ calibration. */
+	popts->zq_en = 1;
+
+	/*
+	 * For wake-up on ARP, we need auto self refresh enabled
+	 */
+	popts->auto_self_refresh_en = 1;
+	popts->sr_it = 0xb;
+}

u-boot/board/freescale/p1022ds/diu.c

@@ -0,0 +1,477 @@
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ * Authors: Timur Tabi <timur@freescale.com>
+ *
+ * FSL DIU Framebuffer driver
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/ctype.h>
+#include <asm/io.h>
+#include <stdio_dev.h>
+#include <video_fb.h>
+#include "../common/ngpixis.h"
+#include <fsl_diu_fb.h>
+
+/* The CTL register is called 'csr' in the ngpixis_t structure */
+#define PX_CTL_ALTACC		0x80
+
+#define PX_BRDCFG0_ELBC_SPI_MASK	0xc0
+#define PX_BRDCFG0_ELBC_SPI_ELBC	0x00
+#define PX_BRDCFG0_ELBC_SPI_NULL	0xc0
+#define PX_BRDCFG0_ELBC_DIU		0x02
+
+#define PX_BRDCFG1_DVIEN	0x80
+#define PX_BRDCFG1_DFPEN	0x40
+#define PX_BRDCFG1_BACKLIGHT	0x20
+
+#define PMUXCR_ELBCDIU_MASK	0xc0000000
+#define PMUXCR_ELBCDIU_NOR16	0x80000000
+#define PMUXCR_ELBCDIU_DIU	0x40000000
+
+/*
+ * DIU Area Descriptor
+ *
+ * Note that we need to byte-swap the value before it's written to the AD
+ * register.  So even though the registers don't look like they're in the same
+ * bit positions as they are on the MPC8610, the same value is written to the
+ * AD register on the MPC8610 and on the P1022.
+ */
+#define AD_BYTE_F		0x10000000
+#define AD_ALPHA_C_SHIFT	25
+#define AD_BLUE_C_SHIFT		23
+#define AD_GREEN_C_SHIFT	21
+#define AD_RED_C_SHIFT		19
+#define AD_PIXEL_S_SHIFT	16
+#define AD_COMP_3_SHIFT		12
+#define AD_COMP_2_SHIFT		8
+#define AD_COMP_1_SHIFT		4
+#define AD_COMP_0_SHIFT		0
+
+/*
+ * Variables used by the DIU/LBC switching code.  It's safe to makes these
+ * global, because the DIU requires DDR, so we'll only run this code after
+ * relocation.
+ */
+static u8 px_brdcfg0;
+static u32 pmuxcr;
+static void *lbc_lcs0_ba;
+static void *lbc_lcs1_ba;
+static u32 old_br0, old_or0, old_br1, old_or1;
+static u32 new_br0, new_or0, new_br1, new_or1;
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	unsigned long speed_ccb, temp;
+	u32 pixval;
+
+	speed_ccb = get_bus_freq(0);
+	temp = 1000000000 / pixclock;
+	temp *= 1000;
+	pixval = speed_ccb / temp;
+	debug("DIU pixval = %u\n", pixval);
+
+	/* Modify PXCLK in GUTS CLKDVDR */
+	temp = in_be32(&gur->clkdvdr) & 0x2000FFFF;
+	out_be32(&gur->clkdvdr, temp);			/* turn off clock */
+	out_be32(&gur->clkdvdr, temp | 0x80000000 | ((pixval & 0x1F) << 16));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	const char *name;
+	u32 pixel_format;
+	u8 temp;
+	phys_addr_t phys0, phys1; /* BR0/BR1 physical addresses */
+
+	/*
+	 * Indirect mode requires both BR0 and BR1 to be set to "GPCM",
+	 * otherwise writes to these addresses won't actually appear on the
+	 * local bus, and so the PIXIS won't see them.
+	 *
+	 * In FCM mode, writes go to the NAND controller, which does not pass
+	 * them to the localbus directly.  So we force BR0 and BR1 into GPCM
+	 * mode, since we don't care about what's behind the localbus any
+	 * more.  However, we save those registers first, so that we can
+	 * restore them when necessary.
+	 */
+	new_br0 = old_br0 = get_lbc_br(0);
+	new_br1 = old_br1 = get_lbc_br(1);
+	new_or0 = old_or0 = get_lbc_or(0);
+	new_or1 = old_or1 = get_lbc_or(1);
+
+	/*
+	 * Use the existing BRx/ORx values if it's already GPCM. Otherwise,
+	 * force the values to simple 32KB GPCM windows with the most
+	 * conservative timing.
+	 */
+	if ((old_br0 & BR_MSEL) != BR_MS_GPCM) {
+		new_br0 = (get_lbc_br(0) & BR_BA) | BR_V;
+		new_or0 = OR_AM_32KB | 0xFF7;
+		set_lbc_br(0, new_br0);
+		set_lbc_or(0, new_or0);
+	}
+	if ((old_br1 & BR_MSEL) != BR_MS_GPCM) {
+		new_br1 = (get_lbc_br(1) & BR_BA) | BR_V;
+		new_or1 = OR_AM_32KB | 0xFF7;
+		set_lbc_br(1, new_br1);
+		set_lbc_or(1, new_or1);
+	}
+
+	/*
+	 * Determine the physical addresses for Chip Selects 0 and 1.  The
+	 * BR0/BR1 registers contain the truncated physical addresses for the
+	 * chip selects, mapped via the localbus LAW.  Since the BRx registers
+	 * only contain the lower 32 bits of the address, we have to determine
+	 * the upper 4 bits some other way.  The proper way is to scan the LAW
+	 * table looking for a matching localbus address. Instead, we cheat.
+	 * We know that the upper bits are 0 for 32-bit addressing, or 0xF for
+	 * 36-bit addressing.
+	 */
+#ifdef CONFIG_PHYS_64BIT
+	phys0 = 0xf00000000ULL | (old_br0 & old_or0 & BR_BA);
+	phys1 = 0xf00000000ULL | (old_br1 & old_or1 & BR_BA);
+#else
+	phys0 = old_br0 & old_or0 & BR_BA;
+	phys1 = old_br1 & old_or1 & BR_BA;
+#endif
+
+	 /* Save the LBC LCS0 and LCS1 addresses for the DIU mux functions */
+	lbc_lcs0_ba = map_physmem(phys0, 1, 0);
+	lbc_lcs1_ba = map_physmem(phys1, 1, 0);
+
+	pixel_format = cpu_to_le32(AD_BYTE_F | (3 << AD_ALPHA_C_SHIFT) |
+		(0 << AD_BLUE_C_SHIFT) | (1 << AD_GREEN_C_SHIFT) |
+		(2 << AD_RED_C_SHIFT) | (8 << AD_COMP_3_SHIFT) |
+		(8 << AD_COMP_2_SHIFT) | (8 << AD_COMP_1_SHIFT) |
+		(8 << AD_COMP_0_SHIFT) | (3 << AD_PIXEL_S_SHIFT));
+
+	temp = in_8(&pixis->brdcfg1);
+
+	if (strncmp(port, "lvds", 4) == 0) {
+		/* Single link LVDS */
+		temp &= ~PX_BRDCFG1_DVIEN;
+		/*
+		 * LVDS also needs backlight enabled, otherwise the display
+		 * will be blank.
+		 */
+		temp |= (PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT);
+		name = "Single-Link LVDS";
+	} else {	/* DVI */
+		/* Enable the DVI port, disable the DFP and the backlight */
+		temp &= ~(PX_BRDCFG1_DFPEN | PX_BRDCFG1_BACKLIGHT);
+		temp |= PX_BRDCFG1_DVIEN;
+		name = "DVI";
+	}
+
+	printf("DIU:   Switching to %s monitor @ %ux%u\n", name, xres, yres);
+	out_8(&pixis->brdcfg1, temp);
+
+	/*
+	 * Enable PIXIS indirect access mode.  This is a hack that allows us to
+	 * access PIXIS registers even when the LBC pins have been muxed to the
+	 * DIU.
+	 */
+	setbits_8(&pixis->csr, PX_CTL_ALTACC);
+
+	/*
+	 * Route the LAD pins to the DIU.  This will disable access to the eLBC,
+	 * which means we won't be able to read/write any NOR flash addresses!
+	 */
+	out_8(lbc_lcs0_ba, offsetof(ngpixis_t, brdcfg0));
+	px_brdcfg0 = in_8(lbc_lcs1_ba);
+	out_8(lbc_lcs1_ba, px_brdcfg0 | PX_BRDCFG0_ELBC_DIU);
+	in_8(lbc_lcs1_ba);
+
+	/* Set PMUXCR to switch the muxed pins from the LBC to the DIU */
+	clrsetbits_be32(&gur->pmuxcr, PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_DIU);
+	pmuxcr = in_be32(&gur->pmuxcr);
+
+	return fsl_diu_init(xres, yres, pixel_format, 0);
+}
+
+/*
+ * set_mux_to_lbc - disable the DIU so that we can read/write to elbc
+ *
+ * On the Freescale P1022, the DIU video signal and the LBC address/data lines
+ * share the same pins, which means that when the DIU is active (e.g. the
+ * console is on the DVI display), NOR flash cannot be accessed.  So we use the
+ * weak accessor feature of the CFI flash code to temporarily switch the pin
+ * mux from DIU to LBC whenever we want to read or write flash.  This has a
+ * significant performance penalty, but it's the only way to make it work.
+ *
+ * There are two muxes: one on the chip, and one on the board. The chip mux
+ * controls whether the pins are used for the DIU or the LBC, and it is
+ * set via PMUXCR.  The board mux controls whether those signals go to
+ * the video connector or the NOR flash chips, and it is set via the ngPIXIS.
+ */
+static int set_mux_to_lbc(void)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	/* Switch the muxes only if they're currently set to DIU mode */
+	if ((in_be32(&gur->pmuxcr) & PMUXCR_ELBCDIU_MASK) !=
+	    PMUXCR_ELBCDIU_NOR16) {
+		/*
+		 * In DIU mode, the PIXIS can only be accessed indirectly
+		 * since we can't read/write the LBC directly.
+		 */
+		/* Set the board mux to LBC.  This will disable the display. */
+		out_8(lbc_lcs0_ba, offsetof(ngpixis_t, brdcfg0));
+		out_8(lbc_lcs1_ba, px_brdcfg0);
+		in_8(lbc_lcs1_ba);
+
+		/* Disable indirect PIXIS mode */
+		out_8(lbc_lcs0_ba, offsetof(ngpixis_t, csr));
+		clrbits_8(lbc_lcs1_ba, PX_CTL_ALTACC);
+
+		/* Set the chip mux to LBC mode, so that writes go to flash. */
+		out_be32(&gur->pmuxcr, (pmuxcr & ~PMUXCR_ELBCDIU_MASK) |
+			 PMUXCR_ELBCDIU_NOR16);
+		in_be32(&gur->pmuxcr);
+
+		/* Restore the BR0 and BR1 settings */
+		set_lbc_br(0, old_br0);
+		set_lbc_or(0, old_or0);
+		set_lbc_br(1, old_br1);
+		set_lbc_or(1, old_or1);
+
+		return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * set_mux_to_diu - re-enable the DIU muxing
+ *
+ * This function restores the chip and board muxing to point to the DIU.
+ */
+static void set_mux_to_diu(void)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	/* Set BR0 and BR1 to GPCM mode */
+	set_lbc_br(0, new_br0);
+	set_lbc_or(0, new_or0);
+	set_lbc_br(1, new_br1);
+	set_lbc_or(1, new_or1);
+
+	/* Enable indirect PIXIS mode */
+	setbits_8(&pixis->csr, PX_CTL_ALTACC);
+
+	/* Set the board mux to DIU.  This will enable the display. */
+	out_8(lbc_lcs0_ba, offsetof(ngpixis_t, brdcfg0));
+	out_8(lbc_lcs1_ba, px_brdcfg0 | PX_BRDCFG0_ELBC_DIU);
+	in_8(lbc_lcs1_ba);
+
+	/* Set the chip mux to DIU mode. */
+	out_be32(&gur->pmuxcr, pmuxcr);
+	in_be32(&gur->pmuxcr);
+}
+
+/*
+ * pixis_read - board-specific function to read from the PIXIS
+ *
+ * This function overrides the generic pixis_read() function, so that it can
+ * use PIXIS indirect mode if necessary.
+ */
+u8 pixis_read(unsigned int reg)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	/* Use indirect mode if the mux is currently set to DIU mode */
+	if ((in_be32(&gur->pmuxcr) & PMUXCR_ELBCDIU_MASK) !=
+	    PMUXCR_ELBCDIU_NOR16) {
+		out_8(lbc_lcs0_ba, reg);
+		return in_8(lbc_lcs1_ba);
+	} else {
+		void *p = (void *)PIXIS_BASE;
+
+		return in_8(p + reg);
+	}
+}
+
+/*
+ * pixis_write - board-specific function to write to the PIXIS
+ *
+ * This function overrides the generic pixis_write() function, so that it can
+ * use PIXIS indirect mode if necessary.
+ */
+void pixis_write(unsigned int reg, u8 value)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	/* Use indirect mode if the mux is currently set to DIU mode */
+	if ((in_be32(&gur->pmuxcr) & PMUXCR_ELBCDIU_MASK) !=
+	    PMUXCR_ELBCDIU_NOR16) {
+		out_8(lbc_lcs0_ba, reg);
+		out_8(lbc_lcs1_ba, value);
+		/* Do a read-back to ensure the write completed */
+		in_8(lbc_lcs1_ba);
+	} else {
+		void *p = (void *)PIXIS_BASE;
+
+		out_8(p + reg, value);
+	}
+}
+
+void pixis_bank_reset(void)
+{
+	/*
+	 * For some reason, a PIXIS bank reset does not work if the PIXIS is
+	 * in indirect mode, so switch to direct mode first.
+	 */
+	set_mux_to_lbc();
+
+	out_8(&pixis->vctl, 0);
+	out_8(&pixis->vctl, 1);
+
+	while (1);
+}
+
+#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
+
+void flash_write8(u8 value, void *addr)
+{
+	int sw = set_mux_to_lbc();
+
+	__raw_writeb(value, addr);
+	if (sw) {
+		/*
+		 * To ensure the post-write is completed to eLBC, software must
+		 * perform a dummy read from one valid address from eLBC space
+		 * before changing the eLBC_DIU from NOR mode to DIU mode.
+		 * set_mux_to_diu() includes a sync that will ensure the
+		 * __raw_readb() completes before it switches the mux.
+		 */
+		__raw_readb(addr);
+		set_mux_to_diu();
+	}
+}
+
+void flash_write16(u16 value, void *addr)
+{
+	int sw = set_mux_to_lbc();
+
+	__raw_writew(value, addr);
+	if (sw) {
+		/*
+		 * To ensure the post-write is completed to eLBC, software must
+		 * perform a dummy read from one valid address from eLBC space
+		 * before changing the eLBC_DIU from NOR mode to DIU mode.
+		 * set_mux_to_diu() includes a sync that will ensure the
+		 * __raw_readb() completes before it switches the mux.
+		 */
+		__raw_readb(addr);
+		set_mux_to_diu();
+	}
+}
+
+void flash_write32(u32 value, void *addr)
+{
+	int sw = set_mux_to_lbc();
+
+	__raw_writel(value, addr);
+	if (sw) {
+		/*
+		 * To ensure the post-write is completed to eLBC, software must
+		 * perform a dummy read from one valid address from eLBC space
+		 * before changing the eLBC_DIU from NOR mode to DIU mode.
+		 * set_mux_to_diu() includes a sync that will ensure the
+		 * __raw_readb() completes before it switches the mux.
+		 */
+		__raw_readb(addr);
+		set_mux_to_diu();
+	}
+}
+
+void flash_write64(u64 value, void *addr)
+{
+	int sw = set_mux_to_lbc();
+	uint32_t *p = addr;
+
+	/*
+	 * There is no __raw_writeq(), so do the write manually.  We don't trust
+	 * the compiler, so we use inline assembly.
+	 */
+	__asm__ __volatile__(
+		"stw%U0%X0 %2,%0;\n"
+		"stw%U1%X1 %3,%1;\n"
+		: "=m" (*p), "=m" (*(p + 1))
+		: "r" ((uint32_t) (value >> 32)), "r" ((uint32_t) (value)));
+
+	if (sw) {
+		/*
+		 * To ensure the post-write is completed to eLBC, software must
+		 * perform a dummy read from one valid address from eLBC space
+		 * before changing the eLBC_DIU from NOR mode to DIU mode.  We
+		 * read addr+4 because we just wrote to addr+4, so that's how we
+		 * maintain execution order.  set_mux_to_diu() includes a sync
+		 * that will ensure the __raw_readb() completes before it
+		 * switches the mux.
+		 */
+		__raw_readb(addr + 4);
+		set_mux_to_diu();
+	}
+}
+
+u8 flash_read8(void *addr)
+{
+	u8 ret;
+
+	int sw = set_mux_to_lbc();
+
+	ret = __raw_readb(addr);
+	if (sw)
+		set_mux_to_diu();
+
+	return ret;
+}
+
+u16 flash_read16(void *addr)
+{
+	u16 ret;
+
+	int sw = set_mux_to_lbc();
+
+	ret = __raw_readw(addr);
+	if (sw)
+		set_mux_to_diu();
+
+	return ret;
+}
+
+u32 flash_read32(void *addr)
+{
+	u32 ret;
+
+	int sw = set_mux_to_lbc();
+
+	ret = __raw_readl(addr);
+	if (sw)
+		set_mux_to_diu();
+
+	return ret;
+}
+
+u64 flash_read64(void *addr)
+{
+	u64 ret;
+
+	int sw = set_mux_to_lbc();
+
+	/* There is no __raw_readq(), so do the read manually */
+	ret = *(volatile u64 *)addr;
+	if (sw)
+		set_mux_to_diu();
+
+	return ret;
+}
+
+#endif

u-boot/board/freescale/p1022ds/law.c

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
+	SET_LAW(PIXIS_BASE_PHYS, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
+	SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_32K, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);

u-boot/board/freescale/p1022ds/p1022ds.c

@@ -0,0 +1,362 @@
+/*
+ * Copyright 2010-2012 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_pci.h>
+#include <fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <fsl_mdio.h>
+#include <tsec.h>
+#include <asm/fsl_law.h>
+#include <netdev.h>
+#include <i2c.h>
+#include <hwconfig.h>
+
+#include "../common/ngpixis.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	/* Set pmuxcr to allow both i2c1 and i2c2 */
+	setbits_be32(&gur->pmuxcr, 0x1000);
+#ifdef CONFIG_SYS_RAMBOOT
+	setbits_be32(&gur->pmuxcr,
+		in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
+#endif
+
+	/* Read back the register to synchronize the write. */
+	in_be32(&gur->pmuxcr);
+
+	/* Set the pin muxing to enable ETSEC2. */
+	clrbits_be32(&gur->pmuxcr2, 0x001F8000);
+
+	/* Enable the SPI */
+	clrsetbits_8(&pixis->brdcfg0, PIXIS_ELBC_SPI_MASK, PIXIS_SPI);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	u8 sw;
+
+	printf("Board: P1022DS Sys ID: 0x%02x, "
+	       "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
+		in_8(&pixis->id), in_8(&pixis->arch), in_8(&pixis->scver));
+
+	sw = in_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH));
+
+	switch ((sw & PIXIS_LBMAP_MASK) >> 6) {
+	case 0:
+		printf ("vBank: %u\n", ((sw & 0x30) >> 4));
+		break;
+	case 1:
+		printf ("NAND\n");
+		break;
+	case 2:
+	case 3:
+		puts ("Promjet\n");
+		break;
+	}
+
+	return 0;
+}
+
+#define CONFIG_TFP410_I2C_ADDR	0x38
+
+/* Masks for the SSI_TDM and AUDCLK bits of the ngPIXIS BRDCFG1 register. */
+#define CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK	0x0c
+#define CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK	0x03
+
+/* Route the I2C1 pins to the SSI port instead. */
+#define CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI	0x08
+
+/* Choose the 12.288Mhz codec reference clock */
+#define CONFIG_PIXIS_BRDCFG1_AUDCLK_12		0x02
+
+/* Choose the 11.2896Mhz codec reference clock */
+#define CONFIG_PIXIS_BRDCFG1_AUDCLK_11		0x01
+
+/* Connect to USB2 */
+#define CONFIG_PIXIS_BRDCFG0_USB2		0x10
+/* Connect to TFM bus */
+#define CONFIG_PIXIS_BRDCFG1_TDM		0x0c
+/* Connect to SPI */
+#define CONFIG_PIXIS_BRDCFG0_SPI		0x80
+
+int misc_init_r(void)
+{
+	u8 temp;
+	const char *audclk;
+	size_t arglen;
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+	/* For DVI, enable the TFP410 Encoder. */
+
+	temp = 0xBF;
+	if (i2c_write(CONFIG_TFP410_I2C_ADDR, 0x08, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+	if (i2c_read(CONFIG_TFP410_I2C_ADDR, 0x08, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+	debug("DVI Encoder Read: 0x%02x\n", temp);
+
+	temp = 0x10;
+	if (i2c_write(CONFIG_TFP410_I2C_ADDR, 0x0A, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+	if (i2c_read(CONFIG_TFP410_I2C_ADDR, 0x0A, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+	debug("DVI Encoder Read: 0x%02x\n",temp);
+
+	/* Enable the USB2 in PMUXCR2 and FGPA */
+	if (hwconfig("usb2")) {
+		clrsetbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_ETSECUSB_MASK,
+			MPC85xx_PMUXCR2_USB);
+		setbits_8(&pixis->brdcfg0, CONFIG_PIXIS_BRDCFG0_USB2);
+	}
+
+	/* tdm and audio can not enable simultaneous*/
+	if (hwconfig("tdm") && hwconfig("audclk")){
+		printf("WARNING: TDM and AUDIO can not be enabled simultaneous !\n");
+		return -1;
+	}
+
+	/* Enable the TDM in PMUXCR and FGPA */
+	if (hwconfig("tdm")) {
+		clrsetbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_TDM_MASK,
+			MPC85xx_PMUXCR_TDM);
+		setbits_8(&pixis->brdcfg1, CONFIG_PIXIS_BRDCFG1_TDM);
+		/* TDM need some configration option by SPI */
+		clrsetbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SPI_MASK,
+			MPC85xx_PMUXCR_SPI);
+		setbits_8(&pixis->brdcfg0, CONFIG_PIXIS_BRDCFG0_SPI);
+	}
+
+	/*
+	 * Enable the reference clock for the WM8776 codec, and route the MUX
+	 * pins for SSI. The default is the 12.288 MHz clock
+	 */
+
+	if (hwconfig("audclk")) {
+		temp = in_8(&pixis->brdcfg1) & ~(CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK |
+			CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK);
+		temp |= CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI;
+
+		audclk = hwconfig_arg("audclk", &arglen);
+		/* Check the first two chars only */
+		if (audclk && (strncmp(audclk, "11", 2) == 0))
+			temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_11;
+		else
+			temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_12;
+		setbits_8(&pixis->brdcfg1, temp);
+	}
+
+	return 0;
+}
+
+/*
+ * A list of PCI and SATA slots
+ */
+enum slot_id {
+	SLOT_PCIE1 = 1,
+	SLOT_PCIE2,
+	SLOT_PCIE3,
+	SLOT_PCIE4,
+	SLOT_PCIE5,
+	SLOT_SATA1,
+	SLOT_SATA2
+};
+
+/*
+ * This array maps the slot identifiers to their names on the P1022DS board.
+ */
+static const char *slot_names[] = {
+	[SLOT_PCIE1] = "Slot 1",
+	[SLOT_PCIE2] = "Slot 2",
+	[SLOT_PCIE3] = "Slot 3",
+	[SLOT_PCIE4] = "Slot 4",
+	[SLOT_PCIE5] = "Mini-PCIe",
+	[SLOT_SATA1] = "SATA 1",
+	[SLOT_SATA2] = "SATA 2",
+};
+
+/*
+ * This array maps a given SERDES configuration and SERDES device to the PCI or
+ * SATA slot that it connects to.  This mapping is hard-coded in the FPGA.
+ */
+static u8 serdes_dev_slot[][SATA2 + 1] = {
+	[0x01] = { [PCIE3] = SLOT_PCIE4, [PCIE2] = SLOT_PCIE5 },
+	[0x02] = { [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x09] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE4,
+		   [PCIE2] = SLOT_PCIE5 },
+	[0x16] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
+		   [PCIE2] = SLOT_PCIE3,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x17] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
+		   [PCIE2] = SLOT_PCIE3 },
+	[0x1a] = { [PCIE1] = SLOT_PCIE1, [PCIE2] = SLOT_PCIE3,
+		   [PCIE2] = SLOT_PCIE3,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x1c] = { [PCIE1] = SLOT_PCIE1,
+		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
+	[0x1e] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE3 },
+	[0x1f] = { [PCIE1] = SLOT_PCIE1 },
+};
+
+
+/*
+ * Returns the name of the slot to which the PCIe or SATA controller is
+ * connected
+ */
+const char *board_serdes_name(enum srds_prtcl device)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	u32 pordevsr = in_be32(&gur->pordevsr);
+	unsigned int srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
+				MPC85xx_PORDEVSR_IO_SEL_SHIFT;
+	enum slot_id slot = serdes_dev_slot[srds_cfg][device];
+	const char *name = slot_names[slot];
+
+	if (name)
+		return name;
+	else
+		return "Nothing";
+}
+
+#ifdef CONFIG_PCI
+void pci_init_board(void)
+{
+	fsl_pcie_init_board(0);
+}
+#endif
+
+int board_early_init_r(void)
+{
+	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
+	int flash_esel = find_tlb_idx((void *)flashbase, 1);
+
+	/*
+	 * Remap Boot flash + PROMJET region to caching-inhibited
+	 * so that flash can be erased properly.
+	 */
+
+	/* Flush d-cache and invalidate i-cache of any FLASH data */
+	flush_dcache();
+	invalidate_icache();
+
+	if (flash_esel == -1) {
+		/* very unlikely unless something is messed up */
+		puts("Error: Could not find TLB for FLASH BASE\n");
+		flash_esel = 2;	/* give our best effort to continue */
+	} else {
+		/* invalidate existing TLB entry for flash + promjet */
+		disable_tlb(flash_esel);
+	}
+
+	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, flash_esel, BOOKE_PAGESZ_256M, 1);
+
+	return 0;
+}
+
+/*
+ * Initialize on-board and/or PCI Ethernet devices
+ *
+ * Returns:
+ *      <0, error
+ *       0, no ethernet devices found
+ *      >0, number of ethernet devices initialized
+ */
+int board_eth_init(bd_t *bis)
+{
+	struct fsl_pq_mdio_info mdio_info;
+	struct tsec_info_struct tsec_info[2];
+	unsigned int num = 0;
+
+#ifdef CONFIG_TSEC1
+	SET_STD_TSEC_INFO(tsec_info[num], 1);
+	num++;
+#endif
+#ifdef CONFIG_TSEC2
+	SET_STD_TSEC_INFO(tsec_info[num], 2);
+	num++;
+#endif
+
+	mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
+	mdio_info.name = DEFAULT_MII_NAME;
+	fsl_pq_mdio_init(bis, &mdio_info);
+
+	return tsec_eth_init(bis, tsec_info, num) + pci_eth_init(bis);
+}
+
+#ifdef CONFIG_OF_BOARD_SETUP
+/**
+ * ft_codec_setup - fix up the clock-frequency property of the codec node
+ *
+ * Update the clock-frequency property based on the value of the 'audclk'
+ * hwconfig option.  If audclk is not specified, then don't write anything
+ * to the device tree, because it means that the codec clock is disabled.
+ */
+static void ft_codec_setup(void *blob, const char *compatible)
+{
+	const char *audclk;
+	size_t arglen;
+	u32 freq;
+
+	audclk = hwconfig_arg("audclk", &arglen);
+	if (audclk) {
+		if (strncmp(audclk, "11", 2) == 0)
+			freq = 11289600;
+		else
+			freq = 12288000;
+
+		do_fixup_by_compat_u32(blob, compatible, "clock-frequency",
+				       freq, 1);
+	}
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	phys_addr_t base;
+	phys_size_t size;
+
+	ft_cpu_setup(blob, bd);
+
+	base = getenv_bootm_low();
+	size = getenv_bootm_size();
+
+	fdt_fixup_memory(blob, (u64)base, (u64)size);
+
+#ifdef CONFIG_HAS_FSL_DR_USB
+	fdt_fixup_dr_usb(blob, bd);
+#endif
+
+	FT_FSL_PCI_SETUP;
+
+#ifdef CONFIG_FSL_SGMII_RISER
+	fsl_sgmii_riser_fdt_fixup(blob);
+#endif
+
+	/* Update the WM8776 node's clock frequency property */
+	ft_codec_setup(blob, "wlf,wm8776");
+
+	return 0;
+}
+#endif

u-boot/board/freescale/p1022ds/spl.c

@@ -0,0 +1,127 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <console.h>
+#include <ns16550.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <nand.h>
+#include <i2c.h>
+#include "../common/ngpixis.h"
+#include <fsl_esdhc.h>
+#include <spi_flash.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const u32 sysclk_tbl[] = {
+	66666000, 7499900, 83332500, 8999900,
+	99999000, 11111000, 12499800, 13333200
+};
+
+phys_size_t get_effective_memsize(void)
+{
+	return CONFIG_SYS_L2_SIZE;
+}
+
+void board_init_f(ulong bootflag)
+{
+	int px_spd;
+	u32 plat_ratio, sys_clk, bus_clk;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+	console_init_f();
+
+	/* Set pmuxcr to allow both i2c1 and i2c2 */
+	setbits_be32(&gur->pmuxcr, in_be32(&gur->pmuxcr) | 0x1000);
+	setbits_be32(&gur->pmuxcr,
+		     in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
+
+#ifdef CONFIG_SPL_SPI_BOOT
+	/* Enable the SPI */
+	clrsetbits_8(&pixis->brdcfg0, PIXIS_ELBC_SPI_MASK, PIXIS_SPI);
+#endif
+
+	/* Read back the register to synchronize the write. */
+	in_be32(&gur->pmuxcr);
+
+	/* initialize selected port with appropriate baud rate */
+	px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
+	sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
+	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+	bus_clk = sys_clk * plat_ratio / 2;
+
+	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+		     bus_clk / 16 / CONFIG_BAUDRATE);
+#ifdef CONFIG_SPL_MMC_BOOT
+	puts("\nSD boot...\n");
+#elif defined(CONFIG_SPL_SPI_BOOT)
+	puts("\nSPI Flash boot...\n");
+#endif
+
+	/* copy code to RAM and jump to it - this should not return */
+	/* NOTE - code has to be copied out of NAND buffer before
+	 * other blocks can be read.
+	 */
+	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
+	bd_t *bd;
+
+	memset(gd, 0, sizeof(gd_t));
+	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
+	memset(bd, 0, sizeof(bd_t));
+	gd->bd = bd;
+	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
+	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
+
+	probecpu();
+	get_clocks();
+	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
+			CONFIG_SPL_RELOC_MALLOC_SIZE);
+	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
+#ifndef CONFIG_SPL_NAND_BOOT
+	env_init();
+#endif
+#ifdef CONFIG_SPL_MMC_BOOT
+	mmc_initialize(bd);
+#endif
+	/* relocate environment function pointers etc. */
+#ifdef CONFIG_SPL_NAND_BOOT
+	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
+			    (uchar *)CONFIG_ENV_ADDR);
+
+	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
+	gd->env_valid = 1;
+#else
+	env_relocate();
+#endif
+
+#ifdef CONFIG_SYS_I2C
+	i2c_init_all();
+#else
+	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+#endif
+
+	gd->ram_size = initdram(0);
+#ifdef CONFIG_SPL_NAND_BOOT
+	puts("Tertiary program loader running in sram...");
+#else
+	puts("Second program loader running in sram...\n");
+#endif
+
+#ifdef CONFIG_SPL_MMC_BOOT
+	mmc_boot();
+#elif defined(CONFIG_SPL_SPI_BOOT)
+	spi_boot();
+#elif defined(CONFIG_SPL_NAND_BOOT)
+	nand_boot();
+#endif
+}

u-boot/board/freescale/p1022ds/spl_minimal.c

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <ns16550.h>
+#include <asm/io.h>
+#include <nand.h>
+#include <asm/fsl_law.h>
+#include <fsl_ddr_sdram.h>
+
+
+const static u32 sysclk_tbl[] = {
+	66666000, 7499900, 83332500, 8999900,
+	99999000, 11111000, 12499800, 13333200
+};
+
+void board_init_f(ulong bootflag)
+{
+	int px_spd;
+	u32 plat_ratio, sys_clk, bus_clk;
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+
+#if defined(CONFIG_SYS_NAND_BR_PRELIM) && defined(CONFIG_SYS_NAND_OR_PRELIM)
+	set_lbc_br(0, CONFIG_SYS_NAND_BR_PRELIM);
+	set_lbc_or(0, CONFIG_SYS_NAND_OR_PRELIM);
+#endif
+	/* for FPGA */
+	set_lbc_br(2, CONFIG_SYS_BR2_PRELIM);
+	set_lbc_or(2, CONFIG_SYS_OR2_PRELIM);
+
+	/* initialize selected port with appropriate baud rate */
+	px_spd = in_8((unsigned char *)(PIXIS_BASE + PIXIS_SPD));
+	sys_clk = sysclk_tbl[px_spd & PIXIS_SPD_SYSCLK_MASK];
+	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
+	bus_clk = sys_clk * plat_ratio / 2;
+
+	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
+			bus_clk / 16 / CONFIG_BAUDRATE);
+
+	puts("\nNAND boot... ");
+
+	/* copy code to RAM and jump to it - this should not return */
+	/* NOTE - code has to be copied out of NAND buffer before
+	 * other blocks can be read.
+	 */
+	relocate_code(CONFIG_SPL_RELOC_STACK, 0,
+			CONFIG_SPL_RELOC_TEXT_BASE);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+	puts("\nSecond program loader running in sram...");
+	nand_boot();
+}
+
+void putc(char c)
+{
+	if (c == '\n')
+		NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r');
+
+	NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c);
+}
+
+void puts(const char *str)
+{
+	while (*str)
+		putc(*str++);
+}

u-boot/board/freescale/p1022ds/tlb.c

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+		      0, 0, BOOKE_PAGESZ_4K, 1),
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_1M, 1),
+
+#ifndef CONFIG_SPL_BUILD
+	/* W**G* - Flash/promjet, localbus */
+	/* This will be changed to *I*G* after relocation to RAM. */
+	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
+		      MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE3_MEM_VIRT, CONFIG_SYS_PCIE3_MEM_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 3, BOOKE_PAGESZ_1G, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE3_MEM_VIRT + 0x40000000,
+		      CONFIG_SYS_PCIE3_MEM_PHYS + 0x40000000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 4, BOOKE_PAGESZ_256M, 1),
+
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE3_MEM_VIRT + 0x50000000,
+		      CONFIG_SYS_PCIE3_MEM_PHYS + 0x50000000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 5, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI I/O */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE3_IO_VIRT, CONFIG_SYS_PCIE3_IO_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 6, BOOKE_PAGESZ_256K, 1),
+#endif
+
+	SET_TLB_ENTRY(1, PIXIS_BASE, PIXIS_BASE_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 7, BOOKE_PAGESZ_4K, 1),
+
+#if defined(CONFIG_SYS_RAMBOOT) || \
+	(defined(CONFIG_SPL) && !defined(CONFIG_SPL_COMMON_INIT_DDR))
+	/* **** - eSDHC/eSPI/NAND boot */
+	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 8, BOOKE_PAGESZ_1G, 1),
+	/* **** - eSDHC/eSPI/NAND boot - second 1GB of memory */
+	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
+		      CONFIG_SYS_DDR_SDRAM_BASE + 0x40000000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
+		      0, 9, BOOKE_PAGESZ_1G, 1),
+#endif
+
+#ifdef CONFIG_SYS_NAND_BASE
+	/* *I*G - NAND */
+	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 10, BOOKE_PAGESZ_16K, 1),
+#endif
+
+#ifdef CONFIG_SYS_INIT_L2_ADDR
+	/* *I*G - L2SRAM */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L2_ADDR, CONFIG_SYS_INIT_L2_ADDR_PHYS,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_G,
+		      0, 11, BOOKE_PAGESZ_256K, 1)
+#endif
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);