mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
264 lines
5.8 KiB
C
264 lines
5.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
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* Copyright 2007 Embedded Specialties, Inc.
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* Joe Hamman joe.hamman@embeddedspecialties.com
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*
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* Copyright 2004 Freescale Semiconductor.
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* Jeff Brown
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* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
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*
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* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
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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/processor.h>
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#include <asm/immap_86xx.h>
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#include <asm/fsl_pci.h>
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#include <fsl_ddr_sdram.h>
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#include <asm/fsl_serdes.h>
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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DECLARE_GLOBAL_DATA_PTR;
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long int fixed_sdram (void);
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int board_early_init_f (void)
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{
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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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puts ("Board: Wind River SBC8641D\n");
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return 0;
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}
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int dram_init(void)
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{
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long dram_size = 0;
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#if defined(CONFIG_SPD_EEPROM)
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dram_size = fsl_ddr_sdram();
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#else
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dram_size = fixed_sdram ();
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#endif
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debug (" DDR: ");
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gd->ram_size = dram_size;
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return 0;
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}
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#if defined(CONFIG_SYS_DRAM_TEST)
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int testdram (void)
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{
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uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
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uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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uint *p;
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puts ("SDRAM test phase 1:\n");
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for (p = pstart; p < pend; p++)
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*p = 0xaaaaaaaa;
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for (p = pstart; p < pend; p++) {
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if (*p != 0xaaaaaaaa) {
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printf ("SDRAM test fails at: %08x\n", (uint) p);
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return 1;
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}
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}
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puts ("SDRAM test phase 2:\n");
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for (p = pstart; p < pend; p++)
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*p = 0x55555555;
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for (p = pstart; p < pend; p++) {
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if (*p != 0x55555555) {
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printf ("SDRAM test fails at: %08x\n", (uint) p);
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return 1;
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}
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}
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puts ("SDRAM test passed.\n");
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return 0;
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}
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#endif
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#if !defined(CONFIG_SPD_EEPROM)
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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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long int fixed_sdram (void)
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{
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#if !defined(CONFIG_SYS_RAMBOOT)
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volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
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volatile struct ccsr_ddr *ddr = &immap->im_ddr1;
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ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
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ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
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ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS;
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ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS;
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ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
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ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
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ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG;
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ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG;
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ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
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ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
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ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
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ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
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ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1A;
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ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2;
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ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
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ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
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ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTL;
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ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
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ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
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ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
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asm ("sync;isync");
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udelay (500);
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ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B;
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asm ("sync; isync");
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udelay (500);
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ddr = &immap->im_ddr2;
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ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
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ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS;
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ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS;
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ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS;
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ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG;
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ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG;
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ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG;
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ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG;
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ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH;
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ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0;
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ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1;
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ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2;
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ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1A;
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ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2;
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ddr->sdram_mode = CONFIG_SYS_DDR2_MODE_1;
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ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2;
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ddr->sdram_md_cntl = CONFIG_SYS_DDR2_MODE_CTL;
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ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL;
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ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT;
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ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL;
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asm ("sync;isync");
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udelay (500);
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ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B;
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asm ("sync; isync");
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udelay (500);
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#endif
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return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
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}
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#endif /* !defined(CONFIG_SPD_EEPROM) */
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#if defined(CONFIG_PCI)
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/*
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* Initialize PCI Devices, report devices found.
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*/
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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 /* CONFIG_PCI */
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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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FT_FSL_PCI_SETUP;
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return 0;
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}
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#endif
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void sbc8641d_reset_board (void)
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{
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puts ("Resetting board....\n");
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}
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/*
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* get_board_sys_clk
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* Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
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*/
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unsigned long get_board_sys_clk (ulong dummy)
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{
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int i;
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ulong val = 0;
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i = 5;
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i &= 0x07;
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switch (i) {
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case 0:
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val = 33000000;
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break;
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case 1:
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val = 40000000;
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break;
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case 2:
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val = 50000000;
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break;
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case 3:
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val = 66000000;
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break;
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case 4:
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val = 83000000;
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break;
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case 5:
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val = 100000000;
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break;
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case 6:
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val = 134000000;
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break;
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case 7:
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val = 166000000;
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break;
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}
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return val;
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}
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void board_reset(void)
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{
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#ifdef CONFIG_SYS_RESET_ADDRESS
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ulong addr = CONFIG_SYS_RESET_ADDRESS;
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/* flush and disable I/D cache */
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__asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
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__asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
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__asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
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__asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
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__asm__ __volatile__ ("sync");
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__asm__ __volatile__ ("mtspr 1008, 4");
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__asm__ __volatile__ ("isync");
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__asm__ __volatile__ ("sync");
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__asm__ __volatile__ ("mtspr 1008, 5");
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__asm__ __volatile__ ("isync");
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__asm__ __volatile__ ("sync");
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/*
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* SRR0 has system reset vector, SRR1 has default MSR value
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* rfi restores MSR from SRR1 and sets the PC to the SRR0 value
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*/
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__asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
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__asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
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__asm__ __volatile__ ("mtspr 27, 4");
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__asm__ __volatile__ ("rfi");
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#endif
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}
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