powerpc: add support for the Freescale P1022DS reference board

Specifics:

1) 36-bit only
2) Booting from NOR flash only
3) Environment stored in NOR flash only
4) No SPI support
5) No DIU support

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

6 files changed, 541 insertions, 0 deletions

diff --git a/board/freescale/p1022ds/Makefile b/board/freescale/p1022ds/Makefile
new file mode 100644
index 0000000..8ede2d6
--- /dev/null
+++ b/board/freescale/p1022ds/Makefile
@@ -0,0 +1,39 @@
+#
+# Copyright 2010 Freescale Semiconductor, Inc.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option)
+# any later version.
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS-y	+= $(BOARD).o
+COBJS-y	+= ddr.o
+COBJS-y	+= law.o
+COBJS-y	+= tlb.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+	rm -f $(OBJS) $(SOBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/p1022ds/config.mk b/board/freescale/p1022ds/config.mk
new file mode 100644
index 0000000..4581d20
--- /dev/null
+++ b/board/freescale/p1022ds/config.mk
@@ -0,0 +1,14 @@
+#
+# Copyright 2010 Freescale Semiconductor, Inc.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option)
+# any later version.
+#
+
+ifndef TEXT_BASE
+TEXT_BASE = 0xeff80000
+endif
+
+RESET_VECTOR_ADDRESS = 0xeffffffc
diff --git a/board/freescale/p1022ds/ddr.c b/board/freescale/p1022ds/ddr.c
new file mode 100644
index 0000000..7ecfb3e
--- /dev/null
+++ b/board/freescale/p1022ds/ddr.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_ddr_dimm_params.h>
+
+unsigned int fsl_ddr_get_mem_data_rate(void)
+{
+	return get_ddr_freq(0);
+}
+
+void fsl_ddr_get_spd(ddr3_spd_eeprom_t *ctrl_dimms_spd, unsigned int ctrl_num)
+{
+	int ret;
+
+	/*
+	 * The P1022 has only one DDR controller, and the board has only one
+	 * DIMM slot.
+	 */
+	ret = i2c_read(SPD_EEPROM_ADDRESS1, 0, 1, (u8 *)ctrl_dimms_spd,
+		       sizeof(ddr3_spd_eeprom_t));
+	if (ret) {
+		debug("DDR: failed to read SPD from address %u\n",
+		      SPD_EEPROM_ADDRESS1);
+		memset(ctrl_dimms_spd, 0, sizeof(ddr3_spd_eeprom_t));
+	}
+}
+
+typedef struct {
+	u32 datarate_mhz_low;
+	u32 datarate_mhz_high;
+	u32 n_ranks;
+	u32 clk_adjust;		/* Range: 0-8 */
+	u32 cpo;		/* Range: 2-31 */
+	u32 write_data_delay;	/* Range: 0-6 */
+	u32 force_2T;
+} board_specific_parameters_t;
+
+static const board_specific_parameters_t bsp[] = {
+/*
+ *        lo|  hi|  num|  clk| cpo|wrdata|2T
+ *       mhz| mhz|ranks|adjst|    | delay|
+ */
+	{  0, 333,    1,    5,  31,     3, 0},
+	{334, 400,    1,    5,  31,     3, 0},
+	{401, 549,    1,    5,  31,     3, 0},
+	{550, 680,    1,    5,  31,     5, 0},
+	{681, 850,    1,    5,  31,     5, 0},
+	{  0, 333,    2,    5,  31,     3, 0},
+	{334, 400,    2,    5,  31,     3, 0},
+	{401, 549,    2,    5,  31,     3, 0},
+	{550, 680,    2,    5,  31,     5, 0},
+	{681, 850,    2,    5,  31,     5, 0},
+};
+
+void fsl_ddr_board_options(memctl_options_t *popts, dimm_params_t *pdimm,
+			   unsigned int ctrl_num)
+{
+	unsigned long ddr_freq;
+	unsigned int i;
+
+	/* 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;
+	}
+
+	/*
+	 * 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;
+	for (i = 0; i < ARRAY_SIZE(bsp); i++) {
+		if (ddr_freq >= bsp[i].datarate_mhz_low &&
+		    ddr_freq <= bsp[i].datarate_mhz_high &&
+		    pdimm->n_ranks == bsp[i].n_ranks) {
+			popts->clk_adjust = bsp[i].clk_adjust;
+			popts->cpo_override = bsp[i].cpo;
+			popts->write_data_delay = bsp[i].write_data_delay;
+			popts->twoT_en = bsp[i].force_2T;
+			break;
+		}
+	}
+
+	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;
+}
diff --git a/board/freescale/p1022ds/law.c b/board/freescale/p1022ds/law.c
new file mode 100644
index 0000000..b23b8f9
--- /dev/null
+++ b/board/freescale/p1022ds/law.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#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),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/freescale/p1022ds/p1022ds.c b/board/freescale/p1022ds/p1022ds.c
new file mode 100644
index 0000000..970a0d5
--- /dev/null
+++ b/board/freescale/p1022ds/p1022ds.c
@@ -0,0 +1,285 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#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 <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
+#include <asm/io.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <tsec.h>
+#include <asm/fsl_law.h>
+#include <asm/mp.h>
+#include <netdev.h>
+#include <i2c.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);
+
+	/* Read back the register to synchronize the write. */
+	in_be32(&gur->pmuxcr);
+
+	/* Set the pin muxing to enable ETSEC2. */
+	clrbits_be32(&gur->pmuxcr2, 0x001F8000);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	u8 sw;
+
+	puts("Board: P1022DS ");
+
+	printf("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;
+}
+
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size = 0;
+
+	puts("Initializing....\n");
+
+	dram_size = fsl_ddr_sdram();
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000) * 0x100000;
+
+	puts("    DDR: ");
+	return dram_size;
+}
+
+#define CONFIG_TFP410_I2C_ADDR	0x38
+
+int misc_init_r(void)
+{
+	u8 temp;
+
+	/*  Enable the TFP410 Encoder */
+
+	temp = 0xBF;
+	if (i2c_write(CONFIG_TFP410_I2C_ADDR, 0x08, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+
+	/* Verify if enabled */
+	temp = 0;
+	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;
+
+	/* Verify if enabled */
+	temp = 0;
+	if (i2c_read(CONFIG_TFP410_I2C_ADDR, 0x0A, 1, &temp, sizeof(temp)) < 0)
+		return -1;
+
+	debug("DVI Encoder Read: 0x%02x\n",temp);
+
+	return 0;
+}
+
+static void configure_pcie(struct fsl_pci_info *info,
+			   struct pci_controller *hose,
+			   const char *connected)
+{
+	static int bus_number = 0;
+	int is_endpoint;
+
+	set_next_law(info->mem_phys, law_size_bits(info->mem_size), info->law);
+	set_next_law(info->io_phys, law_size_bits(info->io_size), info->law);
+	is_endpoint = fsl_setup_hose(hose, info->regs);
+	printf("    PCIE%u connected to %s as %s (base addr %lx)\n",
+	       info->pci_num, connected,
+	       is_endpoint ? "Endpoint" : "Root Complex", info->regs);
+	bus_number = fsl_pci_init_port(info, hose, bus_number);
+}
+
+#ifdef CONFIG_PCIE1
+static struct pci_controller pcie1_hose;
+#endif
+
+#ifdef CONFIG_PCIE2
+static struct pci_controller pcie2_hose;
+#endif
+
+#ifdef CONFIG_PCIE3
+static struct pci_controller pcie3_hose;
+#endif
+
+#ifdef CONFIG_PCI
+void pci_init_board(void)
+{
+	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	struct fsl_pci_info pci_info;
+	u32 devdisr = in_be32(&gur->devdisr);
+
+#ifdef CONFIG_PCIE1
+	if (is_serdes_configured(PCIE1) && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
+		SET_STD_PCIE_INFO(pci_info, 1);
+		configure_pcie(&pci_info, &pcie1_hose, serdes_slot_name(PCIE1));
+	} else {
+		printf("    PCIE1: disabled\n");
+	}
+#else
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
+#endif
+
+#ifdef CONFIG_PCIE2
+	if (is_serdes_configured(PCIE2) && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
+		SET_STD_PCIE_INFO(pci_info, 2);
+		configure_pcie(&pci_info, &pcie2_hose, serdes_slot_name(PCIE2));
+	} else {
+		printf("    PCIE2: disabled\n");
+	}
+#else
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE2); /* disable */
+#endif
+
+#ifdef CONFIG_PCIE3
+	if (is_serdes_configured(PCIE3) && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
+		SET_STD_PCIE_INFO(pci_info, 3);
+		configure_pcie(&pci_info, &pcie3_hose, serdes_slot_name(PCIE3));
+	} else {
+		printf("    PCIE3: disabled\n");
+	}
+#else
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE3); /* disable */
+#endif
+}
+#endif
+
+int board_early_init_r(void)
+{
+	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
+	const u8 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();
+
+	/* 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 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
+
+	return tsec_eth_init(bis, tsec_info, num) + pci_eth_init(bis);
+}
+
+#ifdef CONFIG_OF_BOARD_SETUP
+void 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_PCIE1
+	ft_fsl_pci_setup(blob, "pci0", &pcie1_hose);
+#else
+	ft_fsl_pci_setup(blob, "pci0", NULL);
+#endif
+
+#ifdef CONFIG_PCIE2
+	ft_fsl_pci_setup(blob, "pci1", &pcie2_hose);
+#else
+	ft_fsl_pci_setup(blob, "pci1", NULL);
+#endif
+
+#ifdef CONFIG_PCIE3
+	ft_fsl_pci_setup(blob, "pci2", &pcie3_hose);
+#else
+	ft_fsl_pci_setup(blob, "pci2", NULL);
+#endif
+
+#ifdef CONFIG_FSL_SGMII_RISER
+	fsl_sgmii_riser_fdt_fixup(blob);
+#endif
+}
+#endif
+
+#ifdef CONFIG_MP
+void board_lmb_reserve(struct lmb *lmb)
+{
+	cpu_mp_lmb_reserve(lmb);
+}
+#endif
diff --git a/board/freescale/p1022ds/tlb.c b/board/freescale/p1022ds/tlb.c
new file mode 100644
index 0000000..e620112
--- /dev/null
+++ b/board/freescale/p1022ds/tlb.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
+ *          Timur Tabi <timur@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#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),
+
+	/* 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),
+
+	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),
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);