mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-04 02:20:25 +00:00
0f4ec05bbb
These files only need error number macros. Actually, IS_ERR(), PTR_ERR(), ERR_PTR(), etc. are not useful for U-Boot. Avoid unnecessary header includes. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 2014 Panasonic Corporation
|
|
* Copyright (C) 2015-2016 Socionext Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "ddrphy-init.h"
|
|
#include "ddrphy-regs.h"
|
|
|
|
enum dram_freq {
|
|
DRAM_FREQ_1333M,
|
|
DRAM_FREQ_1600M,
|
|
DRAM_FREQ_NR,
|
|
};
|
|
|
|
static u32 ddrphy_ptr0[DRAM_FREQ_NR] = {0x0a806844, 0x0c807d04};
|
|
static u32 ddrphy_ptr1[DRAM_FREQ_NR] = {0x208e0124, 0x2710015E};
|
|
static u32 ddrphy_ptr3[DRAM_FREQ_NR] = {0x0f051616, 0x12061A80};
|
|
static u32 ddrphy_ptr4[DRAM_FREQ_NR] = {0x06ae08d6, 0x08027100};
|
|
static u32 ddrphy_dtpr0[DRAM_FREQ_NR] = {0x85589955, 0x999cbb66};
|
|
static u32 ddrphy_dtpr1[DRAM_FREQ_NR] = {0x1a8363c0, 0x1a878400};
|
|
static u32 ddrphy_dtpr2[DRAM_FREQ_NR] = {0x5002c200, 0xa00214f8};
|
|
static u32 ddrphy_mr0[DRAM_FREQ_NR] = {0x00000b51, 0x00000d71};
|
|
static u32 ddrphy_mr2[DRAM_FREQ_NR] = {0x00000290, 0x00000298};
|
|
|
|
int uniphier_ld4_ddrphy_init(void __iomem *phy_base, int freq, bool ddr3plus)
|
|
{
|
|
enum dram_freq freq_e;
|
|
u32 tmp;
|
|
|
|
switch (freq) {
|
|
case 1333:
|
|
freq_e = DRAM_FREQ_1333M;
|
|
break;
|
|
case 1600:
|
|
freq_e = DRAM_FREQ_1600M;
|
|
break;
|
|
default:
|
|
printf("unsupported DRAM frequency %d MHz\n", freq);
|
|
return -EINVAL;
|
|
}
|
|
|
|
writel(0x0300c473, phy_base + PHY_PGCR1);
|
|
writel(ddrphy_ptr0[freq_e], phy_base + PHY_PTR0);
|
|
writel(ddrphy_ptr1[freq_e], phy_base + PHY_PTR1);
|
|
writel(0x00083DEF, phy_base + PHY_PTR2);
|
|
writel(ddrphy_ptr3[freq_e], phy_base + PHY_PTR3);
|
|
writel(ddrphy_ptr4[freq_e], phy_base + PHY_PTR4);
|
|
writel(0xF004001A, phy_base + PHY_DSGCR);
|
|
|
|
/* change the value of the on-die pull-up/pull-down registors */
|
|
tmp = readl(phy_base + PHY_DXCCR);
|
|
tmp &= ~0x0ee0;
|
|
tmp |= PHY_DXCCR_DQSNRES_688_OHM | PHY_DXCCR_DQSRES_688_OHM;
|
|
writel(tmp, phy_base + PHY_DXCCR);
|
|
|
|
writel(0x0000040B, phy_base + PHY_DCR);
|
|
writel(ddrphy_dtpr0[freq_e], phy_base + PHY_DTPR0);
|
|
writel(ddrphy_dtpr1[freq_e], phy_base + PHY_DTPR1);
|
|
writel(ddrphy_dtpr2[freq_e], phy_base + PHY_DTPR2);
|
|
writel(ddrphy_mr0[freq_e], phy_base + PHY_MR0);
|
|
writel(0x00000006, phy_base + PHY_MR1);
|
|
writel(ddrphy_mr2[freq_e], phy_base + PHY_MR2);
|
|
writel(ddr3plus ? 0x00000800 : 0x00000000, phy_base + PHY_MR3);
|
|
|
|
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
|
|
;
|
|
|
|
writel(0x0300C473, phy_base + PHY_PGCR1);
|
|
writel(0x0000005D, phy_base + PHY_ZQ_BASE + PHY_ZQ_CR1);
|
|
|
|
return 0;
|
|
}
|