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https://github.com/brain-hackers/u-boot-brain
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![Simon Glass](/assets/img/avatar_default.png)
This function can fail if the device tree runs out of space. Rather than silently booting with an incomplete device tree, allow the failure to be detected. Unfortunately this involves changing a lot of places in the code. I have not changed behvaiour to return an error where one is not currently returned, to avoid unexpected breakage. Eventually it would be nice to allow boards to register functions to be called to update the device tree. This would avoid all the many functions to do this. However it's not clear yet if this should be done using driver model or with a linker list. This work is left for later. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>
167 lines
3.9 KiB
C
167 lines
3.9 KiB
C
/*
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* Copyright (C) 2006 Freescale Semiconductor, Inc.
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*
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* Dave Liu <daveliu@freescale.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <ioports.h>
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#include <mpc83xx.h>
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#include <i2c.h>
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#include <miiphy.h>
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#include <command.h>
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#if defined(CONFIG_PCI)
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#include <pci.h>
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#endif
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#include <asm/mmu.h>
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#if defined(CONFIG_OF_LIBFDT)
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#include <libfdt.h>
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#endif
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#if defined(CONFIG_PQ_MDS_PIB)
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#include "../common/pq-mds-pib.h"
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#endif
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const qe_iop_conf_t qe_iop_conf_tab[] = {
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/* ETH3 */
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{1, 0, 1, 0, 1}, /* TxD0 */
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{1, 1, 1, 0, 1}, /* TxD1 */
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{1, 2, 1, 0, 1}, /* TxD2 */
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{1, 3, 1, 0, 1}, /* TxD3 */
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{1, 9, 1, 0, 1}, /* TxER */
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{1, 12, 1, 0, 1}, /* TxEN */
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{3, 24, 2, 0, 1}, /* TxCLK->CLK10 */
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{1, 4, 2, 0, 1}, /* RxD0 */
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{1, 5, 2, 0, 1}, /* RxD1 */
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{1, 6, 2, 0, 1}, /* RxD2 */
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{1, 7, 2, 0, 1}, /* RxD3 */
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{1, 8, 2, 0, 1}, /* RxER */
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{1, 10, 2, 0, 1}, /* RxDV */
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{0, 13, 2, 0, 1}, /* RxCLK->CLK9 */
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{1, 11, 2, 0, 1}, /* COL */
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{1, 13, 2, 0, 1}, /* CRS */
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/* ETH4 */
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{1, 18, 1, 0, 1}, /* TxD0 */
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{1, 19, 1, 0, 1}, /* TxD1 */
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{1, 20, 1, 0, 1}, /* TxD2 */
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{1, 21, 1, 0, 1}, /* TxD3 */
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{1, 27, 1, 0, 1}, /* TxER */
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{1, 30, 1, 0, 1}, /* TxEN */
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{3, 6, 2, 0, 1}, /* TxCLK->CLK8 */
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{1, 22, 2, 0, 1}, /* RxD0 */
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{1, 23, 2, 0, 1}, /* RxD1 */
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{1, 24, 2, 0, 1}, /* RxD2 */
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{1, 25, 2, 0, 1}, /* RxD3 */
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{1, 26, 1, 0, 1}, /* RxER */
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{1, 28, 2, 0, 1}, /* Rx_DV */
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{3, 31, 2, 0, 1}, /* RxCLK->CLK7 */
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{1, 29, 2, 0, 1}, /* COL */
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{1, 31, 2, 0, 1}, /* CRS */
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{3, 4, 3, 0, 2}, /* MDIO */
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{3, 5, 1, 0, 2}, /* MDC */
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{0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
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};
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int board_early_init_f(void)
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{
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volatile u8 *bcsr = (volatile u8 *)CONFIG_SYS_BCSR;
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/* Enable flash write */
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bcsr[9] &= ~0x08;
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return 0;
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}
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int board_early_init_r(void)
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{
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#ifdef CONFIG_PQ_MDS_PIB
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pib_init();
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#endif
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return 0;
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}
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int fixed_sdram(void);
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phys_size_t initdram(int board_type)
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{
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volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
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u32 msize = 0;
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if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
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return -1;
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/* DDR SDRAM - Main SODIMM */
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im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
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msize = fixed_sdram();
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/* return total bus SDRAM size(bytes) -- DDR */
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return (msize * 1024 * 1024);
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}
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/*************************************************************************
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* fixed sdram init -- doesn't use serial presence detect.
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************************************************************************/
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int fixed_sdram(void)
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{
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volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
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u32 msize = 0;
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u32 ddr_size;
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u32 ddr_size_log2;
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msize = CONFIG_SYS_DDR_SIZE;
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for (ddr_size = msize << 20, ddr_size_log2 = 0;
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(ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
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if (ddr_size & 1) {
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return -1;
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}
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}
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im->sysconf.ddrlaw[0].ar =
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LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
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#if (CONFIG_SYS_DDR_SIZE != 128)
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#warning Currenly any ddr size other than 128 is not supported
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#endif
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im->ddr.sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CNTL;
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im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS;
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im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG;
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im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
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im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
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im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
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im->ddr.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
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im->ddr.sdram_cfg = CONFIG_SYS_DDR_SDRAM_CFG;
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im->ddr.sdram_cfg2 = CONFIG_SYS_DDR_SDRAM_CFG2;
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im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE;
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im->ddr.sdram_mode2 = CONFIG_SYS_DDR_MODE2;
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im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL;
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__asm__ __volatile__ ("sync");
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udelay(200);
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im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
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__asm__ __volatile__ ("sync");
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return msize;
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}
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int checkboard(void)
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{
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puts("Board: Freescale MPC832XEMDS\n");
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return 0;
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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ft_cpu_setup(blob, bd);
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#ifdef CONFIG_PCI
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ft_pci_setup(blob, bd);
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#endif
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return 0;
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}
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#endif
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