u-boot/drivers/pinctrl/uniphier/pinctrl-uniphier-pro5.c
Bin Meng ad0e804843 pinctrl: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.

To mitigate this potential impact, the following changes are
implemented:

- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
  only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
  is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
  drivers that support both statically declared devices and
  configuration from device tree

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:28 -08:00

159 lines
6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015-2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*/
#include <common.h>
#include <dm.h>
#include <dm/pinctrl.h>
#include "pinctrl-uniphier.h"
static const unsigned emmc_pins[] = {36, 37, 38, 39, 40, 41, 42};
static const int emmc_muxvals[] = {0, 0, 0, 0, 0, 0, 0};
static const unsigned emmc_dat8_pins[] = {43, 44, 45, 46};
static const int emmc_dat8_muxvals[] = {0, 0, 0, 0};
static const unsigned i2c0_pins[] = {112, 113};
static const int i2c0_muxvals[] = {0, 0};
static const unsigned i2c1_pins[] = {114, 115};
static const int i2c1_muxvals[] = {0, 0};
static const unsigned i2c2_pins[] = {116, 117};
static const int i2c2_muxvals[] = {0, 0};
static const unsigned i2c3_pins[] = {118, 119};
static const int i2c3_muxvals[] = {0, 0};
static const unsigned i2c5_pins[] = {87, 88};
static const int i2c5_muxvals[] = {2, 2};
static const unsigned i2c5b_pins[] = {196, 197};
static const int i2c5b_muxvals[] = {2, 2};
static const unsigned i2c5c_pins[] = {215, 216};
static const int i2c5c_muxvals[] = {2, 2};
static const unsigned i2c6_pins[] = {101, 102};
static const int i2c6_muxvals[] = {2, 2};
static const unsigned nand_pins[] = {19, 20, 21, 22, 23, 24, 25, 28, 29, 30,
31, 32, 33, 34, 35};
static const int nand_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const unsigned nand_cs1_pins[] = {26, 27};
static const int nand_cs1_muxvals[] = {0, 0};
static const unsigned sd_pins[] = {250, 251, 252, 253, 254, 255, 256, 257, 258};
static const int sd_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
static const unsigned system_bus_pins[] = {4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17};
static const int system_bus_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0};
static const unsigned system_bus_cs0_pins[] = {105};
static const int system_bus_cs0_muxvals[] = {1};
static const unsigned system_bus_cs1_pins[] = {18};
static const int system_bus_cs1_muxvals[] = {0};
static const unsigned system_bus_cs2_pins[] = {106};
static const int system_bus_cs2_muxvals[] = {1};
static const unsigned system_bus_cs3_pins[] = {100};
static const int system_bus_cs3_muxvals[] = {1};
static const unsigned system_bus_cs4_pins[] = {101};
static const int system_bus_cs4_muxvals[] = {1};
static const unsigned system_bus_cs5_pins[] = {102};
static const int system_bus_cs5_muxvals[] = {1};
static const unsigned system_bus_cs6_pins[] = {69};
static const int system_bus_cs6_muxvals[] = {5};
static const unsigned system_bus_cs7_pins[] = {70};
static const int system_bus_cs7_muxvals[] = {5};
static const unsigned uart0_pins[] = {47, 48};
static const int uart0_muxvals[] = {0, 0};
static const unsigned uart0b_pins[] = {227, 228};
static const int uart0b_muxvals[] = {3, 3};
static const unsigned uart1_pins[] = {49, 50};
static const int uart1_muxvals[] = {0, 0};
static const unsigned uart2_pins[] = {51, 52};
static const int uart2_muxvals[] = {0, 0};
static const unsigned uart3_pins[] = {53, 54};
static const int uart3_muxvals[] = {0, 0};
static const unsigned usb0_pins[] = {124, 125};
static const int usb0_muxvals[] = {0, 0};
static const unsigned usb1_pins[] = {126, 127};
static const int usb1_muxvals[] = {0, 0};
static const unsigned usb2_pins[] = {128, 129};
static const int usb2_muxvals[] = {0, 0};
static const struct uniphier_pinctrl_group uniphier_pro5_groups[] = {
UNIPHIER_PINCTRL_GROUP_SPL(emmc),
UNIPHIER_PINCTRL_GROUP_SPL(emmc_dat8),
UNIPHIER_PINCTRL_GROUP(i2c0),
UNIPHIER_PINCTRL_GROUP(i2c1),
UNIPHIER_PINCTRL_GROUP(i2c2),
UNIPHIER_PINCTRL_GROUP(i2c3),
UNIPHIER_PINCTRL_GROUP(i2c5),
UNIPHIER_PINCTRL_GROUP(i2c5b),
UNIPHIER_PINCTRL_GROUP(i2c5c),
UNIPHIER_PINCTRL_GROUP(i2c6),
UNIPHIER_PINCTRL_GROUP(nand),
UNIPHIER_PINCTRL_GROUP(nand_cs1),
UNIPHIER_PINCTRL_GROUP(sd),
UNIPHIER_PINCTRL_GROUP(system_bus),
UNIPHIER_PINCTRL_GROUP(system_bus_cs0),
UNIPHIER_PINCTRL_GROUP(system_bus_cs1),
UNIPHIER_PINCTRL_GROUP(system_bus_cs2),
UNIPHIER_PINCTRL_GROUP(system_bus_cs3),
UNIPHIER_PINCTRL_GROUP(system_bus_cs4),
UNIPHIER_PINCTRL_GROUP(system_bus_cs5),
UNIPHIER_PINCTRL_GROUP(system_bus_cs6),
UNIPHIER_PINCTRL_GROUP(system_bus_cs7),
UNIPHIER_PINCTRL_GROUP_SPL(uart0),
UNIPHIER_PINCTRL_GROUP_SPL(uart0b),
UNIPHIER_PINCTRL_GROUP_SPL(uart1),
UNIPHIER_PINCTRL_GROUP_SPL(uart2),
UNIPHIER_PINCTRL_GROUP_SPL(uart3),
UNIPHIER_PINCTRL_GROUP(usb0),
UNIPHIER_PINCTRL_GROUP(usb1),
UNIPHIER_PINCTRL_GROUP(usb2),
};
static const char * const uniphier_pro5_functions[] = {
UNIPHIER_PINMUX_FUNCTION_SPL(emmc),
UNIPHIER_PINMUX_FUNCTION(i2c0),
UNIPHIER_PINMUX_FUNCTION(i2c1),
UNIPHIER_PINMUX_FUNCTION(i2c2),
UNIPHIER_PINMUX_FUNCTION(i2c3),
UNIPHIER_PINMUX_FUNCTION(i2c5),
UNIPHIER_PINMUX_FUNCTION(i2c6),
UNIPHIER_PINMUX_FUNCTION(nand),
UNIPHIER_PINMUX_FUNCTION(sd),
UNIPHIER_PINMUX_FUNCTION(system_bus),
UNIPHIER_PINMUX_FUNCTION_SPL(uart0),
UNIPHIER_PINMUX_FUNCTION_SPL(uart1),
UNIPHIER_PINMUX_FUNCTION_SPL(uart2),
UNIPHIER_PINMUX_FUNCTION_SPL(uart3),
UNIPHIER_PINMUX_FUNCTION(usb0),
UNIPHIER_PINMUX_FUNCTION(usb1),
UNIPHIER_PINMUX_FUNCTION(usb2),
};
static struct uniphier_pinctrl_socdata uniphier_pro5_pinctrl_socdata = {
.groups = uniphier_pro5_groups,
.groups_count = ARRAY_SIZE(uniphier_pro5_groups),
.functions = uniphier_pro5_functions,
.functions_count = ARRAY_SIZE(uniphier_pro5_functions),
.caps = UNIPHIER_PINCTRL_CAPS_PUPD_SIMPLE |
UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE,
};
static int uniphier_pro5_pinctrl_probe(struct udevice *dev)
{
return uniphier_pinctrl_probe(dev, &uniphier_pro5_pinctrl_socdata);
}
static const struct udevice_id uniphier_pro5_pinctrl_match[] = {
{ .compatible = "socionext,uniphier-pro5-pinctrl" },
{ /* sentinel */ }
};
U_BOOT_DRIVER(uniphier_pro5_pinctrl) = {
.name = "uniphier-pro5-pinctrl",
.id = UCLASS_PINCTRL,
.of_match = of_match_ptr(uniphier_pro5_pinctrl_match),
.probe = uniphier_pro5_pinctrl_probe,
.priv_auto_alloc_size = sizeof(struct uniphier_pinctrl_priv),
.ops = &uniphier_pinctrl_ops,
#if !CONFIG_IS_ENABLED(OF_CONTROL)
.flags = DM_FLAG_PRE_RELOC,
#endif
};