mirror of
https://github.com/AsahiLinux/u-boot
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aa6e94deab
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
106 lines
2.2 KiB
C
106 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) Aspeed Technology Inc.
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*/
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#include <common.h>
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#include <dm.h>
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#include <ram.h>
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#include <timer.h>
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#include <asm/io.h>
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#include <asm/arch/timer.h>
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#include <linux/bitops.h>
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#include <linux/err.h>
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#include <dm/uclass.h>
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#include <asm/arch/scu_ast2600.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* Memory Control registers */
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#define MCR_BASE 0x1e6e0000
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#define MCR_CONF (MCR_BASE + 0x004)
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/* bit fields of MCR_CONF */
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#define MCR_CONF_ECC_EN BIT(7)
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#define MCR_CONF_VGA_MEMSZ_MASK GENMASK(3, 2)
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#define MCR_CONF_VGA_MEMSZ_SHIFT 2
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#define MCR_CONF_MEMSZ_MASK GENMASK(1, 0)
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#define MCR_CONF_MEMSZ_SHIFT 0
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int dram_init(void)
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{
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int ret;
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struct udevice *dev;
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struct ram_info ram;
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ret = uclass_get_device(UCLASS_RAM, 0, &dev);
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if (ret) {
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debug("cannot get DRAM driver\n");
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return ret;
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}
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ret = ram_get_info(dev, &ram);
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if (ret) {
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debug("cannot get DRAM information\n");
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return ret;
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}
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gd->ram_size = ram.size;
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return 0;
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}
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int board_init(void)
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{
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int i = 0, rc;
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struct udevice *dev;
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gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
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while (1) {
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rc = uclass_get_device(UCLASS_MISC, i++, &dev);
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if (rc)
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break;
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}
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return 0;
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}
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void board_add_ram_info(int use_default)
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{
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int rc;
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uint32_t conf;
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uint32_t ecc, act_size, vga_rsvd;
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struct udevice *scu_dev;
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struct ast2600_scu *scu;
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rc = uclass_get_device_by_driver(UCLASS_CLK,
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DM_DRIVER_GET(aspeed_ast2600_scu), &scu_dev);
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if (rc) {
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debug("%s: cannot find SCU device, rc=%d\n", __func__, rc);
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return;
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}
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scu = devfdt_get_addr_ptr(scu_dev);
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if (IS_ERR_OR_NULL(scu)) {
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debug("%s: cannot get SCU address pointer\n", __func__);
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return;
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}
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conf = readl(MCR_CONF);
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ecc = conf & MCR_CONF_ECC_EN;
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act_size = 0x100 << ((conf & MCR_CONF_MEMSZ_MASK) >> MCR_CONF_MEMSZ_SHIFT);
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vga_rsvd = 0x8 << ((conf & MCR_CONF_VGA_MEMSZ_MASK) >> MCR_CONF_VGA_MEMSZ_SHIFT);
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/* no VGA reservation if efuse VGA disable bit is set */
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if (readl(scu->efuse) & SCU_EFUSE_DIS_VGA)
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vga_rsvd = 0;
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printf(" (capacity:%d MiB, VGA:%d MiB), ECC %s", act_size,
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vga_rsvd, (ecc) ? "on" : "off");
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}
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void enable_caches(void)
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{
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/* get rid of the warning message */
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}
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