u-boot/arch/arm/mach-uniphier/board_init.c
Masahiro Yamada baaafaaad3 ARM: uniphier: add work-around for VBO noise problem
Raise the VDD09 voltage line to 1.0V to suppress VBO noise.
This errata work-around code is needed only for ES1.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-10-10 10:03:23 +09:00

174 lines
3.7 KiB
C

/*
* Copyright (C) 2012-2015 Panasonic Corporation
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <libfdt.h>
#include <linux/io.h>
#include "init.h"
#include "micro-support-card.h"
#include "sg-regs.h"
#include "soc-info.h"
DECLARE_GLOBAL_DATA_PTR;
static void uniphier_setup_xirq(void)
{
const void *fdt = gd->fdt_blob;
int soc_node, aidet_node;
const u32 *val;
unsigned long aidet_base;
u32 tmp;
soc_node = fdt_path_offset(fdt, "/soc");
if (soc_node < 0)
return;
aidet_node = fdt_subnode_offset_namelen(fdt, soc_node, "aidet", 5);
if (aidet_node < 0)
return;
val = fdt_getprop(fdt, aidet_node, "reg", NULL);
if (!val)
return;
aidet_base = fdt32_to_cpu(*val);
tmp = readl(aidet_base + 8); /* AIDET DETCONFR2 */
tmp |= 0x00ff0000; /* Set XIRQ0-7 low active */
writel(tmp, aidet_base + 8);
tmp = readl(0x55000090); /* IRQCTL */
tmp |= 0x000000ff;
writel(tmp, 0x55000090);
}
static void uniphier_nand_pin_init(bool cs2)
{
#ifdef CONFIG_NAND_DENALI
if (uniphier_pin_init(cs2 ? "nand2cs_grp" : "nand_grp"))
pr_err("failed to init NAND pins\n");
#endif
}
int board_init(void)
{
const struct uniphier_board_data *bd;
led_puts("U0");
bd = uniphier_get_board_param();
if (!bd)
return -ENODEV;
switch (uniphier_get_soc_type()) {
#if defined(CONFIG_ARCH_UNIPHIER_SLD3)
case SOC_UNIPHIER_SLD3:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_sld3_pll_init();
uniphier_ld4_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD4)
case SOC_UNIPHIER_LD4:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_ld4_pll_init();
uniphier_ld4_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO4)
case SOC_UNIPHIER_PRO4:
uniphier_nand_pin_init(false);
led_puts("U1");
uniphier_pro4_pll_init();
uniphier_pro4_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_SLD8)
case SOC_UNIPHIER_SLD8:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_ld4_pll_init();
uniphier_ld4_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
case SOC_UNIPHIER_PRO5:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pro5_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
case SOC_UNIPHIER_PXS2:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pxs2_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
case SOC_UNIPHIER_LD6B:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pxs2_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD11)
case SOC_UNIPHIER_LD11:
uniphier_nand_pin_init(false);
sg_set_pinsel(149, 14, 8, 4); /* XIRQ0 -> XIRQ0 */
sg_set_iectrl(149);
sg_set_pinsel(153, 14, 8, 4); /* XIRQ4 -> XIRQ4 */
sg_set_iectrl(153);
led_puts("U1");
uniphier_ld11_pll_init();
uniphier_ld11_clk_init();
break;
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD20)
case SOC_UNIPHIER_LD20:
/* ES1 errata: increase VDD09 supply to suppress VBO noise */
if (uniphier_get_soc_revision() == 1) {
writel(0x00000003, 0x6184e004);
writel(0x00000100, 0x6184e040);
writel(0x0000b500, 0x6184e024);
writel(0x00000001, 0x6184e000);
}
uniphier_nand_pin_init(false);
sg_set_pinsel(149, 14, 8, 4); /* XIRQ0 -> XIRQ0 */
sg_set_iectrl(149);
sg_set_pinsel(153, 14, 8, 4); /* XIRQ4 -> XIRQ4 */
sg_set_iectrl(153);
led_puts("U1");
uniphier_ld20_pll_init(bd);
uniphier_ld20_clk_init();
cci500_init(2);
break;
#endif
default:
break;
}
uniphier_setup_xirq();
led_puts("U2");
support_card_late_init();
led_puts("U3");
#ifdef CONFIG_ARM64
uniphier_smp_kick_all_cpus();
#endif
led_puts("Uboo");
return 0;
}