diff options
Diffstat (limited to 'src/soc/rockchip/rk3399/emmc.c')
| -rw-r--r-- | src/soc/rockchip/rk3399/emmc.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/src/soc/rockchip/rk3399/emmc.c b/src/soc/rockchip/rk3399/emmc.c deleted file mode 100644 index b8519f7796..0000000000 --- a/src/soc/rockchip/rk3399/emmc.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2016 Rockchip Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <arch/io.h> -#include <console/console.h> -#include <delay.h> -#include <soc/addressmap.h> -#include <soc/emmc.h> - -#define SDHCI_CLOCK_CONTROL 0x2c -#define SDHCI_CLOCK_CARD_EN 0x0004 -#define SDHCI_CLOCK_INT_STABLE 0x0002 -#define SDHCI_CLOCK_INT_EN 0x0001 - -/* TODO(crosbug.com/p/52873): We actually don't need to set clk for - * emmc once kernel fix it's bug. - */ -void enable_emmc_clk(void) -{ - int timeout, clk; - - write32((void *)(EMMC_BASE + SDHCI_CLOCK_CONTROL), SDHCI_CLOCK_INT_EN); - - /* Wait max 20 ms */ - timeout = 20; - while (!((clk = read32((void *)(EMMC_BASE + SDHCI_CLOCK_CONTROL))) - & SDHCI_CLOCK_INT_STABLE)) { - if (timeout == 0) { - printk(BIOS_ERR, "Internal clock never stabilised.\n"); - return; - } - timeout--; - udelay(1000); - } - - clk |= SDHCI_CLOCK_CARD_EN; - write32((void *)(EMMC_BASE + SDHCI_CLOCK_CONTROL), clk); -} |