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ARM: uniphier: refactor board_init()

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The code here is cluttered due to the switch statement.  Introduce a
table of callbacks to clean up the initialization code across SoCs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
master
Masahiro Yamada 8 years ago
parent e94842fa2c
commit b61664e230
4 changed files with 141 additions and 95 deletions
  1. 219
      arch/arm/mach-uniphier/board_init.c
  2. 2
      arch/arm/mach-uniphier/clk/Makefile
  3. 14
      arch/arm/mach-uniphier/clk/clk-ld20.c
  4. 1
      arch/arm/mach-uniphier/init.h

219
arch/arm/mach-uniphier/board_init.c
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@ -48,116 +48,177 @@ static void uniphier_setup_xirq(void)
writel(tmp, 0x55000090);
}
static void uniphier_nand_pin_init(bool cs2)
#ifdef CONFIG_ARCH_UNIPHIER_LD11
static void uniphier_ld11_misc_init(void)
{
#ifdef CONFIG_NAND_DENALI
if (uniphier_pin_init(cs2 ? "nand2cs_grp" : "nand_grp"))
pr_err("failed to init NAND pins\n");
#endif
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);
}
#endif
int board_init(void)
#ifdef CONFIG_ARCH_UNIPHIER_LD20
static void uniphier_ld20_misc_init(void)
{
led_puts("U0");
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);
/* 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);
}
cci500_init(2);
}
#endif
struct uniphier_initdata {
enum uniphier_soc_id soc_id;
bool nand_2cs;
void (*pll_init)(void);
void (*clk_init)(void);
void (*misc_init)(void);
};
switch (uniphier_get_soc_type()) {
struct uniphier_initdata uniphier_initdata[] = {
#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;
{
.soc_id = SOC_UNIPHIER_SLD3,
.nand_2cs = true,
.pll_init = uniphier_sld3_pll_init,
.clk_init = uniphier_ld4_clk_init,
},
#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;
{
.soc_id = SOC_UNIPHIER_LD4,
.nand_2cs = true,
.pll_init = uniphier_ld4_pll_init,
.clk_init = uniphier_ld4_clk_init,
},
#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;
{
.soc_id = SOC_UNIPHIER_PRO4,
.nand_2cs = false,
.pll_init = uniphier_pro4_pll_init,
.clk_init = uniphier_pro4_clk_init,
},
#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;
{
.soc_id = SOC_UNIPHIER_SLD8,
.nand_2cs = true,
.pll_init = uniphier_ld4_pll_init,
.clk_init = uniphier_ld4_clk_init,
},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
case SOC_UNIPHIER_PRO5:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pro5_clk_init();
break;
{
.soc_id = SOC_UNIPHIER_PRO5,
.nand_2cs = true,
.clk_init = uniphier_pro5_clk_init,
},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
case SOC_UNIPHIER_PXS2:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pxs2_clk_init();
break;
{
.soc_id = SOC_UNIPHIER_PXS2,
.nand_2cs = true,
.clk_init = uniphier_pxs2_clk_init,
},
#endif
#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
case SOC_UNIPHIER_LD6B:
uniphier_nand_pin_init(true);
led_puts("U1");
uniphier_pxs2_clk_init();
break;
{
.soc_id = SOC_UNIPHIER_LD6B,
.nand_2cs = true,
.clk_init = uniphier_pxs2_clk_init,
},
#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;
{
.soc_id = SOC_UNIPHIER_LD11,
.nand_2cs = false,
.pll_init = uniphier_ld11_pll_init,
.clk_init = uniphier_ld11_clk_init,
.misc_init = uniphier_ld11_misc_init,
},
#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();
uniphier_ld20_clk_init();
cci500_init(2);
break;
{
.soc_id = SOC_UNIPHIER_LD20,
.nand_2cs = false,
.pll_init = uniphier_ld20_pll_init,
.misc_init = uniphier_ld20_misc_init,
},
#endif
default:
break;
};
static struct uniphier_initdata *uniphier_get_initdata(
enum uniphier_soc_id soc_id)
{
int i;
for (i = 0; i < ARRAY_SIZE(uniphier_initdata); i++) {
if (uniphier_initdata[i].soc_id == soc_id)
return &uniphier_initdata[i];
}
uniphier_setup_xirq();
return NULL;
}
int board_init(void)
{
struct uniphier_initdata *initdata;
enum uniphier_soc_id soc_id;
int ret;
led_puts("U0");
soc_id = uniphier_get_soc_type();
initdata = uniphier_get_initdata(soc_id);
if (!initdata) {
pr_err("unsupported board\n");
return -EINVAL;
}
if (IS_ENABLED(CONFIG_NAND_DENALI)) {
ret = uniphier_pin_init(initdata->nand_2cs ?
"nand2cs_grp" : "nand_grp");
if (ret)
pr_err("failed to init NAND pins\n");
}
led_puts("U1");
if (initdata->pll_init)
initdata->pll_init();
led_puts("U2");
support_card_late_init();
if (initdata->clk_init)
initdata->clk_init();
led_puts("U3");
if (initdata->misc_init)
initdata->misc_init();
led_puts("U4");
uniphier_setup_xirq();
led_puts("U5");
support_card_late_init();
led_puts("U6");
#ifdef CONFIG_ARM64
uniphier_smp_kick_all_cpus();
#endif

2
arch/arm/mach-uniphier/clk/Makefile
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@ -24,7 +24,7 @@ obj-$(CONFIG_ARCH_UNIPHIER_PRO5) += clk-pro5.o
obj-$(CONFIG_ARCH_UNIPHIER_PXS2) += clk-pxs2.o
obj-$(CONFIG_ARCH_UNIPHIER_LD6B) += clk-pxs2.o
obj-$(CONFIG_ARCH_UNIPHIER_LD11) += clk-ld11.o pll-ld11.o
obj-$(CONFIG_ARCH_UNIPHIER_LD20) += clk-ld20.o pll-ld20.o
obj-$(CONFIG_ARCH_UNIPHIER_LD20) += pll-ld20.o
endif

14
arch/arm/mach-uniphier/clk/clk-ld20.c
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@ -1,14 +0,0 @@
/*
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/io.h>
#include "../init.h"
#include "../sc64-regs.h"
void uniphier_ld20_clk_init(void)
{
}

1
arch/arm/mach-uniphier/init.h
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@ -114,7 +114,6 @@ void uniphier_pro4_clk_init(void);
void uniphier_pro5_clk_init(void);
void uniphier_pxs2_clk_init(void);
void uniphier_ld11_clk_init(void);
void uniphier_ld20_clk_init(void);
int uniphier_pin_init(const char *pinconfig_name);
void uniphier_smp_kick_all_cpus(void);

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