mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
107b3fb484
These headers are only included locally in arch/arm/mach-uniphier/. There is no reason to export them by putting in the mach/ directory. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <spl.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "../init.h"
|
|
#include "../sc-regs.h"
|
|
|
|
int proxstream2_early_clk_init(const struct uniphier_board_data *bd)
|
|
{
|
|
u32 tmp;
|
|
|
|
/* deassert reset */
|
|
if (spl_boot_device() != BOOT_DEVICE_NAND) {
|
|
tmp = readl(SC_RSTCTRL);
|
|
tmp &= ~SC_RSTCTRL_NRST_NAND;
|
|
writel(tmp, SC_RSTCTRL);
|
|
};
|
|
|
|
tmp = readl(SC_RSTCTRL4);
|
|
tmp |= SC_RSTCTRL4_NRST_UMCSB | SC_RSTCTRL4_NRST_UMCA2 |
|
|
SC_RSTCTRL4_NRST_UMCA1 | SC_RSTCTRL4_NRST_UMCA0 |
|
|
SC_RSTCTRL4_NRST_UMC32 | SC_RSTCTRL4_NRST_UMC31 |
|
|
SC_RSTCTRL4_NRST_UMC30;
|
|
writel(tmp, SC_RSTCTRL4);
|
|
readl(SC_RSTCTRL4); /* dummy read */
|
|
|
|
/* privide clocks */
|
|
tmp = readl(SC_CLKCTRL);
|
|
tmp |= SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
|
|
writel(tmp, SC_CLKCTRL);
|
|
|
|
tmp = readl(SC_CLKCTRL4);
|
|
tmp |= SC_CLKCTRL4_CEN_UMCSB | SC_CLKCTRL4_CEN_UMC2 |
|
|
SC_CLKCTRL4_CEN_UMC1 | SC_CLKCTRL4_CEN_UMC0;
|
|
writel(tmp, SC_CLKCTRL4);
|
|
readl(SC_CLKCTRL4); /* dummy read */
|
|
|
|
return 0;
|
|
}
|