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https://github.com/brain-hackers/u-boot-brain
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![Chunhe Lan](/assets/img/avatar_default.png)
In the p1023rds, when system boots from nor flash, kernel only accesses nor flash and can not access nand flash with BR0/OR0; when system boots from nand flash, kernel only accesses nand flash and can not access nor flash with BR0/OR0. Default device tree nor and nand node should have the following structure: Example: nor_flash: nor@0,0 { #address-cells = <1>; #size-cells = <1>; compatible = "cfi-flash"; reg = <0x0 0x0 0x02000000>; bank-width = <2>; device-width = <1>; status = "okay"; partition@0 { label = "ramdisk"; reg = <0x00000000 0x01c00000>; }; } nand_flash: nand@1,0 { #address-cells = <1>; #size-cells = <1>; compatible = "fsl,p1023-fcm-nand", "fsl,elbc-fcm-nand"; reg = <0x2 0x0 0x00040000>; status = "disabled"; u-boot-nand@0 { /* This location must not be altered */ /* 1MB for u-boot Bootloader Image */ reg = <0x0 0x00100000>; read-only; }; } When booting from nor flash, the status of nor node is enabled and the status of nand node is disabled in the default dts file, so do not do anything. But, when booting from nand flash, need to do some operations: o Disable the NOR node by setting status = "disabled"; o Enable the NAND node by setting status = "okay"; Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
209 lines
5.6 KiB
C
209 lines
5.6 KiB
C
/*
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* Copyright 2010-2011 Freescale Semiconductor, Inc.
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*
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* Authors: Roy Zang <tie-fei.zang@freescale.com>
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* Chunhe Lan <b25806@freescale.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <pci.h>
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#include <asm/io.h>
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#include <asm/cache.h>
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#include <asm/processor.h>
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#include <asm/mmu.h>
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#include <asm/immap_85xx.h>
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#include <asm/fsl_pci.h>
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#include <asm/fsl_ddr_sdram.h>
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#include <asm/fsl_portals.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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#include <netdev.h>
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#include <malloc.h>
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#include <fm_eth.h>
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#include <fsl_mdio.h>
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#include <miiphy.h>
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#include <phy.h>
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#include <asm/fsl_dtsec.h>
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#include "bcsr.h"
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DECLARE_GLOBAL_DATA_PTR;
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int board_early_init_f(void)
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{
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fsl_lbc_t *lbc = LBC_BASE_ADDR;
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/* Set ABSWP to implement conversion of addresses in the LBC */
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setbits_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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return 0;
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}
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int checkboard(void)
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{
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u8 *bcsr = (u8 *)BCSR_ACCESS_REG_ADDR;
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printf("Board: P1023 RDS\n");
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clrbits_8(&bcsr[15], BCSR15_I2C_BUS0_SEG_CLR);
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setbits_8(&bcsr[15], BCSR15_I2C_BUS0_SEG0);
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return 0;
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}
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/* Fixed sdram init -- doesn't use serial presence detect. */
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phys_size_t fixed_sdram(void)
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{
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#ifndef CONFIG_SYS_RAMBOOT
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ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
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set_next_law(0, LAW_SIZE_2G, LAW_TRGT_IF_DDR_1);
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out_be32(&ddr->cs0_bnds, CONFIG_SYS_DDR_CS0_BNDS);
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out_be32(&ddr->cs0_config, CONFIG_SYS_DDR_CS0_CONFIG);
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out_be32(&ddr->cs1_bnds, CONFIG_SYS_DDR_CS1_BNDS);
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out_be32(&ddr->cs1_config, CONFIG_SYS_DDR_CS1_CONFIG);
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out_be32(&ddr->timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
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out_be32(&ddr->timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
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out_be32(&ddr->timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
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out_be32(&ddr->timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
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out_be32(&ddr->sdram_cfg_2, CONFIG_SYS_DDR_CONTROL2);
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out_be32(&ddr->sdram_mode, CONFIG_SYS_DDR_MODE_1);
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out_be32(&ddr->sdram_mode_2, CONFIG_SYS_DDR_MODE_2);
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out_be32(&ddr->sdram_interval, CONFIG_SYS_DDR_INTERVAL);
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out_be32(&ddr->sdram_data_init, CONFIG_SYS_DDR_DATA_INIT);
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out_be32(&ddr->sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CTRL);
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out_be32(&ddr->timing_cfg_4, CONFIG_SYS_DDR_TIMING_4);
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out_be32(&ddr->timing_cfg_5, CONFIG_SYS_DDR_TIMING_5);
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out_be32(&ddr->ddr_zq_cntl, CONFIG_SYS_DDR_ZQ_CNTL);
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out_be32(&ddr->ddr_wrlvl_cntl, CONFIG_SYS_DDR_WRLVL_CNTL);
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out_be32(&ddr->ddr_cdr1, CONFIG_SYS_DDR_CDR_1);
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out_be32(&ddr->ddr_cdr2, CONFIG_SYS_DDR_CDR_2);
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out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
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#endif
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return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024ul;
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}
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#ifdef CONFIG_PCI
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void pci_init_board(void)
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{
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fsl_pcie_init_board(0);
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}
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#endif
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int board_early_init_r(void)
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{
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const unsigned int flashbase = CONFIG_SYS_BCSR_BASE;
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const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
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/*
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* Remap Boot flash + BCSR region to caching-inhibited
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* so that flash can be erased properly.
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*/
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/* Flush d-cache and invalidate i-cache of any FLASH data */
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flush_dcache();
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invalidate_icache();
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/* invalidate existing TLB entry for flash + bcsr */
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disable_tlb(flash_esel);
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set_tlb(1, flashbase, CONFIG_SYS_BCSR_BASE_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, flash_esel, BOOKE_PAGESZ_256M, 1);
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setup_portals();
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return 0;
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}
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unsigned long get_board_sys_clk(ulong dummy)
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{
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return gd->bus_clk;
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}
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unsigned long get_board_ddr_clk(ulong dummy)
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{
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return gd->mem_clk;
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}
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int board_eth_init(bd_t *bis)
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{
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u8 *bcsr = (u8 *)BCSR_ACCESS_REG_ADDR;
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ccsr_gur_t *gur = (ccsr_gur_t *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
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struct fsl_pq_mdio_info dtsec_mdio_info;
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/*
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* Need to set dTSEC 1 pin multiplexing to TSEC. The default setting
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* is not correct.
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*/
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setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_TSEC1_1);
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dtsec_mdio_info.regs =
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(struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR;
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dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
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/* Register the 1G MDIO bus */
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fsl_pq_mdio_init(bis, &dtsec_mdio_info);
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fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR);
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fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR);
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fm_info_set_mdio(FM1_DTSEC1,
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miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
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fm_info_set_mdio(FM1_DTSEC2,
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miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
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/* Make SERDES connected to SGMII by cleaing bcsr19[7] */
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if (fm_info_get_enet_if(FM1_DTSEC1) == PHY_INTERFACE_MODE_SGMII)
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clrbits_8(&bcsr[19], BCSR19_SGMII_SEL_L);
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#ifdef CONFIG_FMAN_ENET
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cpu_eth_init(bis);
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#endif
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return pci_eth_init(bis);
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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void ft_board_setup(void *blob, bd_t *bd)
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{
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phys_addr_t base;
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phys_size_t size;
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ft_cpu_setup(blob, bd);
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base = getenv_bootm_low();
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size = getenv_bootm_size();
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fdt_fixup_memory(blob, (u64)base, (u64)size);
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/* By default NOR is on, and NAND is disabled */
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#ifdef CONFIG_NAND_U_BOOT
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do_fixup_by_path_string(blob, "nor_flash", "status", "disabled");
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do_fixup_by_path_string(blob, "nand_flash", "status", "okay");
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#endif
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fdt_fixup_fman_ethernet(blob);
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}
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#endif
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