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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>
121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2018 Microsemi Corporation
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*/
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#include <common.h>
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#include <image.h>
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#include <init.h>
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#include <log.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/addrspace.h>
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#include <asm/types.h>
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#include <spi.h>
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#include <led.h>
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#include <wait_bit.h>
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#include <miiphy.h>
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#include <linux/bitops.h>
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DECLARE_GLOBAL_DATA_PTR;
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enum {
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BOARD_TYPE_PCB120 = 0xAABBCC00,
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BOARD_TYPE_PCB123,
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};
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void mscc_switch_reset(bool enter)
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{
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/* Nasty workaround to avoid GPIO19 (DDR!) being reset */
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mscc_gpio_set_alternate(19, 2);
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debug("applying SwC reset\n");
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writel(ICPU_RESET_CORE_RST_PROTECT, BASE_CFG + ICPU_RESET);
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writel(PERF_SOFT_RST_SOFT_CHIP_RST, BASE_DEVCPU_GCB + PERF_SOFT_RST);
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if (wait_for_bit_le32(BASE_DEVCPU_GCB + PERF_SOFT_RST,
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PERF_SOFT_RST_SOFT_CHIP_RST, false, 5000, false))
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pr_err("Tiemout while waiting for switch reset\n");
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/*
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* Reset GPIO19 mode back as regular GPIO, output, high (DDR
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* not reset) (Order is important)
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*/
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setbits_le32(BASE_DEVCPU_GCB + PERF_GPIO_OE, BIT(19));
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writel(BIT(19), BASE_DEVCPU_GCB + PERF_GPIO_OUT_SET);
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mscc_gpio_set_alternate(19, 0);
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}
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int board_phy_config(struct phy_device *phydev)
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{
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if (gd->board_type == BOARD_TYPE_PCB123)
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return 0;
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phy_write(phydev, 0, 31, 0x10);
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phy_write(phydev, 0, 18, 0x80F0);
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while (phy_read(phydev, 0, 18) & 0x8000)
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;
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phy_write(phydev, 0, 31, 0);
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return 0;
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}
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void board_debug_uart_init(void)
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{
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/* too early for the pinctrl driver, so configure the UART pins here */
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mscc_gpio_set_alternate(6, 1);
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mscc_gpio_set_alternate(7, 1);
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}
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int board_early_init_r(void)
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{
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/* Prepare SPI controller to be used in master mode */
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writel(0, BASE_CFG + ICPU_SW_MODE);
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clrsetbits_le32(BASE_CFG + ICPU_GENERAL_CTRL,
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ICPU_GENERAL_CTRL_IF_SI_OWNER_M,
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ICPU_GENERAL_CTRL_IF_SI_OWNER(2));
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/* Address of boot parameters */
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gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE;
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return 0;
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}
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static void do_board_detect(void)
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{
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u16 dummy = 0;
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/* Enable MIIM */
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mscc_gpio_set_alternate(14, 1);
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mscc_gpio_set_alternate(15, 1);
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if (mscc_phy_rd(1, 0, 0, &dummy) == 0)
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gd->board_type = BOARD_TYPE_PCB120;
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else
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gd->board_type = BOARD_TYPE_PCB123;
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}
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#if defined(CONFIG_MULTI_DTB_FIT)
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int board_fit_config_name_match(const char *name)
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{
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if (gd->board_type == BOARD_TYPE_PCB120 &&
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strcmp(name, "ocelot_pcb120") == 0)
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return 0;
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if (gd->board_type == BOARD_TYPE_PCB123 &&
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strcmp(name, "ocelot_pcb123") == 0)
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return 0;
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return -1;
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}
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#endif
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#if defined(CONFIG_DTB_RESELECT)
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int embedded_dtb_select(void)
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{
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do_board_detect();
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fdtdec_setup();
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return 0;
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}
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#endif
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