mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 16:07:30 +00:00
69492fb4c5
Move the sg_set_pinsel macro to arch/arm/mach-uniphier/arm32/debug_ll.S
since it is not used anywhere else.
Move the C functions sg_set_{pinsel,iectrl} to debug-uart.c since they
are not used anywhere else.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <debug_uart.h>
|
|
#include <linux/io.h>
|
|
#include <linux/serial_reg.h>
|
|
|
|
#include "../sg-regs.h"
|
|
#include "../soc-info.h"
|
|
#include "debug-uart.h"
|
|
|
|
#define UNIPHIER_UART_TX 0x00
|
|
#define UNIPHIER_UART_LCR_MCR 0x10
|
|
#define UNIPHIER_UART_LSR 0x14
|
|
#define UNIPHIER_UART_LDR 0x24
|
|
|
|
static void _debug_uart_putc(int c)
|
|
{
|
|
void __iomem *base = (void __iomem *)CONFIG_DEBUG_UART_BASE;
|
|
|
|
while (!(readl(base + UNIPHIER_UART_LSR) & UART_LSR_THRE))
|
|
;
|
|
|
|
writel(c, base + UNIPHIER_UART_TX);
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
void sg_set_pinsel(unsigned int pin, unsigned int muxval,
|
|
unsigned int mux_bits, unsigned int reg_stride)
|
|
{
|
|
unsigned int shift = pin * mux_bits % 32;
|
|
unsigned long reg = SG_PINCTRL_BASE + pin * mux_bits / 32 * reg_stride;
|
|
u32 mask = (1U << mux_bits) - 1;
|
|
u32 tmp;
|
|
|
|
tmp = readl(reg);
|
|
tmp &= ~(mask << shift);
|
|
tmp |= (mask & muxval) << shift;
|
|
writel(tmp, reg);
|
|
}
|
|
|
|
void sg_set_iectrl(unsigned int pin)
|
|
{
|
|
unsigned int bit = pin % 32;
|
|
unsigned long reg = SG_IECTRL + pin / 32 * 4;
|
|
u32 tmp;
|
|
|
|
tmp = readl(reg);
|
|
tmp |= 1 << bit;
|
|
writel(tmp, reg);
|
|
}
|
|
#endif
|
|
|
|
void _debug_uart_init(void)
|
|
{
|
|
#ifdef CONFIG_SPL_BUILD
|
|
void __iomem *base = (void __iomem *)CONFIG_DEBUG_UART_BASE;
|
|
unsigned int divisor;
|
|
|
|
switch (uniphier_get_soc_id()) {
|
|
#if defined(CONFIG_ARCH_UNIPHIER_LD4)
|
|
case UNIPHIER_LD4_ID:
|
|
divisor = uniphier_ld4_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PRO4)
|
|
case UNIPHIER_PRO4_ID:
|
|
divisor = uniphier_pro4_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_SLD8)
|
|
case UNIPHIER_SLD8_ID:
|
|
divisor = uniphier_sld8_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
|
|
case UNIPHIER_PRO5_ID:
|
|
divisor = uniphier_pro5_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
|
|
case UNIPHIER_PXS2_ID:
|
|
divisor = uniphier_pxs2_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
|
|
case UNIPHIER_LD6B_ID:
|
|
divisor = uniphier_ld6b_debug_uart_init();
|
|
break;
|
|
#endif
|
|
default:
|
|
return;
|
|
}
|
|
|
|
writel(UART_LCR_WLEN8 << 8, base + UNIPHIER_UART_LCR_MCR);
|
|
|
|
writel(divisor, base + UNIPHIER_UART_LDR);
|
|
#endif
|
|
}
|
|
DEBUG_UART_FUNCS
|