powerpc, 8xx: Add support for MCR3000 board from CSSI

CS Systemes d'Information (CSSI) manufactures two boards, named MCR3000
and CMPC885 which are respectively based on MPC866 and MPC885 processors.

This patch adds support for the first board.

Signed-off-by: Christophe Leroy <[email protected]>

.travis.yml

@@ -205,6 +205,8 @@ matrix:
         - BUILDMAN="corenet_ds b4860qds sbc8548 bsc91*"
     - env:
         - BUILDMAN="mpc86xx"
+    - env:
+        - BUILDMAN="mpc8xx"
     - env:
         - BUILDMAN="siemens"
     - env:

arch/powerpc/cpu/mpc8xx/Kconfig

@@ -8,6 +8,9 @@ choice
 	prompt "Target select"
 	optional
 
+config TARGET_MCR3000
+	bool "Support MCR3000 board from CSSI"
+
 endchoice
 
 choice
@@ -167,4 +170,6 @@ config SYS_OR7_PRELIM
 config SYS_IMMR
 	hex "Value for IMMR"
 
+source "board/cssi/MCR3000/Kconfig"
+
 endmenu

board/cssi/MAINTAINERS

@@ -0,0 +1,6 @@
+BOARDS from CS Systemes d'Information
+M:	Christophe Leroy <[email protected]>
+S:	Maintained
+F:	board/cssi/
+F:	include/configs/MCR3000.h
+F:	configs/MCR3000_defconfig

board/cssi/MCR3000/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_MCR3000
+
+config SYS_BOARD
+	default "MCR3000"
+
+config SYS_VENDOR
+	default "cssi"
+
+config SYS_CONFIG_NAME
+	default "MCR3000"
+
+config SYS_TEXT_BASE
+	default 0x04000000
+
+endif

board/cssi/MCR3000/MCR3000.c

@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2010-2017 CS Systemes d'Information
+ * Florent Trinh Thai <[email protected]>
+ * Christophe Leroy <[email protected]>
+ *
+ * Board specific routines for the MCR3000 board
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <hwconfig.h>
+#include <mpc8xx.h>
+#include <fdt_support.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const uint cs1_dram_table_66[] = {
+	/* DRAM - single read. (offset 0 in upm RAM) */
+	0x0F3DFC04, 0x0FEFBC04, 0x00BE7804, 0x0FFDF400,
+	0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+	/* DRAM - burst read. (offset 8 in upm RAM) */
+	0x0F3DFC04, 0x0FEFBC04, 0x00BF7C04, 0x00FFFC00,
+	0x00FFFC00, 0x00FEF800, 0x0FFDF400, 0x1FFFFC05,
+	0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+	0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+	/* DRAM - single write. (offset 18 in upm RAM) */
+	0x0F3DFC04, 0x0FEFB800, 0x00BF7404, 0x0FFEF804,
+	0x0FFDF404, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
+
+	/* DRAM - burst write. (offset 20 in upm RAM) */
+	0x0F3DFC04, 0x0FEFB800, 0x00BF7400, 0x00FFFC00,
+	0x00FFFC00, 0x00FFFC04,	0x0FFEF804, 0x0FFDF404,
+	0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+	0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+	/* refresh  (offset 30 in upm RAM) */
+	0x0FFDF404, 0x0FFEBC04, 0x0FFD7C84, 0x0FFFFC04,
+	0x0FFFFC04, 0x0FFFFC04, 0x1FFFFC85, 0xFFFFFFFF,
+
+	/* init */
+	0x0FEEB874, 0x0FBD7474, 0x1FFFFC45, 0xFFFFFFFF,
+
+	/* exception. (offset 3c in upm RAM) */
+	0xFFFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+};
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	const char *sync = "receive";
+
+	ft_cpu_setup(blob, bd);
+
+	/* BRG */
+	do_fixup_by_path_u32(blob, "/soc/cpm", "brg-frequency",
+			     bd->bi_busfreq, 1);
+
+	/* MAC addr */
+	fdt_fixup_ethernet(blob);
+
+	/* Bus Frequency for CPM */
+	do_fixup_by_path_u32(blob, "/soc", "bus-frequency", bd->bi_busfreq, 1);
+
+	/* E1 interface - Set data rate */
+	do_fixup_by_path_u32(blob, "/localbus/e1-wan", "data-rate", 2, 1);
+
+	/* E1 interface - Set channel phase to 0 */
+	do_fixup_by_path_u32(blob, "/localbus/e1-wan", "channel-phase", 0, 1);
+
+	/* E1 interface - rising edge sync pulse transmit */
+	do_fixup_by_path(blob, "/localbus/e1-wan", "rising-edge-sync-pulse",
+			 sync, strlen(sync), 1);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	serial_puts("BOARD: MCR3000 CSSI\n");
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR;
+	memctl8xx_t __iomem *memctl = &immap->im_memctl;
+
+	printf("UPMA init for SDRAM (CAS latency 2), ");
+	printf("init address 0x%08x, size ", (int)dram_init);
+	/* Configure UPMA for cs1 */
+	upmconfig(UPMA, (uint *)cs1_dram_table_66,
+		  sizeof(cs1_dram_table_66) / sizeof(uint));
+	udelay(10);
+	out_be16(&memctl->memc_mptpr, 0x0200);
+	out_be32(&memctl->memc_mamr, 0x14904000);
+	udelay(10);
+	out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_PRELIM);
+	out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_PRELIM);
+	udelay(10);
+	out_be32(&memctl->memc_mcr, 0x80002830);
+	out_be32(&memctl->memc_mar, 0x00000088);
+	out_be32(&memctl->memc_mcr, 0x80002038);
+	udelay(200);
+
+	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+				    SDRAM_MAX_SIZE);
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
+	iop8xx_t __iomem *iop = &immr->im_ioport;
+
+	/* Set port C13 as GPIO (BTN_ACQ_AL) */
+	clrbits_be16(&iop->iop_pcpar, 0x4);
+	clrbits_be16(&iop->iop_pcdir, 0x4);
+
+	/* if BTN_ACQ_AL is pressed then bootdelay is changed to 60 second */
+	if ((in_be16(&iop->iop_pcdat) & 0x0004) == 0)
+		setenv("bootdelay", "60");
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
+
+	/*
+	 * Erase FPGA(s) for reboot
+	 */
+	clrbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA down */
+	setbits_be32(&immr->im_cpm.cp_pbdir, 0x00020000); /* PROGFPGA output */
+	udelay(1);				/* Wait more than 300ns */
+	setbits_be32(&immr->im_cpm.cp_pbdat, 0x00020000); /* PROGFPGA up */
+
+	return 0;
+}

board/cssi/MCR3000/Makefile

@@ -0,0 +1,10 @@
+#
+# Copyright (C) 2010-2017 CS Systemes d'Information
+# Christophe Leroy <[email protected]>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+#
+
+obj-y += MCR3000.o
+obj-$(CONFIG_CMD_NAND) += nand.o

board/cssi/MCR3000/nand.c

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2010-2017 CS Systemes d'Information
+ * Florent Trinh Thai <[email protected]>
+ * Christophe Leroy <[email protected]>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <nand.h>
+#include <asm/io.h>
+
+#define BIT_CLE			((unsigned short)0x0800)
+#define BIT_ALE			((unsigned short)0x0400)
+#define BIT_NCE			((unsigned short)0x1000)
+
+static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
+{
+	struct nand_chip *this	= mtdinfo->priv;
+	immap_t __iomem *immr	= (immap_t __iomem *)CONFIG_SYS_IMMR;
+	unsigned short pddat	= 0;
+
+	/* The hardware control change */
+	if (ctrl & NAND_CTRL_CHANGE) {
+		pddat = in_be16(&immr->im_ioport.iop_pddat);
+
+		/* Clearing ALE and CLE */
+		pddat &= ~(BIT_CLE | BIT_ALE);
+
+		/* Driving NCE pin */
+		if (ctrl & NAND_NCE)
+			pddat &= ~BIT_NCE;
+		else
+			pddat |= BIT_NCE;
+
+		/* Driving CLE and ALE pin */
+		if (ctrl & NAND_CLE)
+			pddat |= BIT_CLE;
+		if (ctrl & NAND_ALE)
+			pddat |= BIT_ALE;
+
+		out_be16(&immr->im_ioport.iop_pddat, pddat);
+	}
+
+	/* Writing the command */
+	if (cmd != NAND_CMD_NONE)
+		out_8(this->IO_ADDR_W, cmd);
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	immap_t __iomem *immr	= (immap_t __iomem *)CONFIG_SYS_IMMR;
+
+	/* Set GPIO Port */
+	setbits_be16(&immr->im_ioport.iop_pddir, 0x1c00);
+	clrbits_be16(&immr->im_ioport.iop_pdpar, 0x1c00);
+	clrsetbits_be16(&immr->im_ioport.iop_pddat, 0x0c00, 0x1000);
+
+	nand->chip_delay	= 60;
+	nand->ecc.mode		= NAND_ECC_SOFT;
+	nand->cmd_ctrl		= nand_hwcontrol;
+
+	return 0;
+}

board/cssi/MCR3000/u-boot.lds

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2010-2017 CS Systemes d'Information
+ * Christophe Leroy <[email protected]>
+ *
+ * (C) Copyright 2001-2003
+ * Wolfgang Denk, DENX Software Engineering, [email protected].
+ *
+ * Modified by Yuli Barcohen <[email protected]>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+OUTPUT_ARCH(powerpc)
+SECTIONS
+{
+	/* Read-only sections, merged into text segment: */
+	. = + SIZEOF_HEADERS;
+	.text          :
+	{
+		arch/powerpc/cpu/mpc8xx/start.o	(.text)
+		arch/powerpc/cpu/mpc8xx/start.o	(.text*)
+		arch/powerpc/cpu/mpc8xx/traps.o	(.text*)
+		arch/powerpc/cpu/mpc8xx/built-in.o	(.text*)
+		arch/powerpc/lib/built-in.o		(.text*)
+		board/cssi/MCR3000/built-in.o	(.text*)
+		disk/built-in.o			(.text*)
+		drivers/net/built-in.o		(.text*)
+
+		*(.text)
+	}
+	_etext = .;
+	PROVIDE (etext = .);
+	.rodata    :
+	{
+		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+	}
+
+	/* Read-write section, merged into data segment: */
+	. = (. + 0x0FFF) & 0xFFFFF000;
+	_erotext = .;
+	PROVIDE (erotext = .);
+	.reloc   :
+	{
+		_GOT2_TABLE_ = .;
+		KEEP(*(.got2))
+		KEEP(*(.got))
+		_FIXUP_TABLE_ = .;
+		KEEP(*(.fixup))
+	}
+	__got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+	__fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+	.data    :
+	{
+		*(.data*)
+		*(.sdata*)
+	}
+	_edata  =  .;
+	PROVIDE (edata = .);
+
+	. = .;
+
+	. = ALIGN(4);
+	.u_boot_list : {
+		KEEP(*(SORT(.u_boot_list*)));
+	}
+
+	. = .;
+	__start___ex_table = .;
+	__ex_table : { *(__ex_table) }
+	__stop___ex_table = .;
+
+	. = ALIGN(4096);
+	__init_begin = .;
+	.text.init : { *(.text.init) }
+	.data.init : { *(.data.init) }
+	. = ALIGN(4096);
+	__init_end = .;
+
+	__bss_start = .;
+	.bss (NOLOAD)       :
+	{
+		*(.bss*)
+		*(.sbss*)
+		*(COMMON)
+		. = ALIGN(4);
+	}
+	__bss_end = . ;
+	PROVIDE (end = .);
+}
+ENTRY(_start)