aspeed: AST2600 Pinctrl Driver
This driver uses Pinctrl framework and is compatible with the Linux driver for AST2600. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
This commit is contained in:
Ryan Chen
Tom Rini
parent
f299171c1d
commit
46220bf017
@ -291,6 +291,15 @@ config ASPEED_AST2500_PINCTRL
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uses Generic Pinctrl framework and is compatible with the Linux
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driver, i.e. it uses the same device tree configuration.
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config ASPEED_AST2600_PINCTRL
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bool "Aspeed AST2600 pin control driver"
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depends on DM && PINCTRL_GENERIC && ASPEED_AST2600
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default y
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help
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Support pin multiplexing control on Aspeed ast2600 SoC. The driver
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uses Generic Pinctrl framework and is compatible with the Linux
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driver, i.e. it uses the same device tree configuration.
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config PINCTRL_K210
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bool "Kendryte K210 Fully-Programmable Input/Output Array driver"
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depends on DM && PINCTRL_GENERIC
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@ -1 +1,2 @@
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obj-$(CONFIG_ASPEED_AST2500_PINCTRL) += pinctrl_ast2500.o
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obj-$(CONFIG_ASPEED_AST2600_PINCTRL) += pinctrl_ast2600.o
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459
drivers/pinctrl/aspeed/pinctrl_ast2600.c
Normal file
459
drivers/pinctrl/aspeed/pinctrl_ast2600.c
Normal file
@ -0,0 +1,459 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) ASPEED Technology Inc.
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*/
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#include <common.h>
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#include <errno.h>
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#include <asm/arch/pinctrl.h>
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#include <asm/arch/scu_ast2600.h>
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#include <asm/io.h>
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#include <dm.h>
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#include <dm/pinctrl.h>
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#include <linux/bitops.h>
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#include <linux/err.h>
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/*
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* This driver works with very simple configuration that has the same name
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* for group and function. This way it is compatible with the Linux Kernel
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* driver.
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*/
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struct aspeed_sig_desc {
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u32 offset;
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u32 reg_set;
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int clr;
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};
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struct aspeed_group_config {
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char *group_name;
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int ndescs;
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struct aspeed_sig_desc *descs;
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};
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struct ast2600_pinctrl_priv {
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struct ast2600_scu *scu;
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};
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static int ast2600_pinctrl_probe(struct udevice *dev)
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{
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struct ast2600_pinctrl_priv *priv = dev_get_priv(dev);
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struct udevice *clk_dev;
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int ret = 0;
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/* find SCU base address from clock device */
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uclass_get_device_by_driver(UCLASS_CLK, DM_DRIVER_GET(aspeed_ast2600_scu), &clk_dev);
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if (ret)
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return ret;
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priv->scu = dev_read_addr_ptr(clk_dev);
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if (IS_ERR(priv->scu))
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return PTR_ERR(priv->scu);
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return 0;
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}
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static struct aspeed_sig_desc i2c1_link[] = {
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{ 0x418, GENMASK(9, 8), 1 },
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{ 0x4B8, GENMASK(9, 8), 0 },
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};
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static struct aspeed_sig_desc i2c2_link[] = {
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{ 0x418, GENMASK(11, 10), 1 },
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{ 0x4B8, GENMASK(11, 10), 0 },
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};
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static struct aspeed_sig_desc i2c3_link[] = {
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{ 0x418, GENMASK(13, 12), 1 },
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{ 0x4B8, GENMASK(13, 12), 0 },
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};
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static struct aspeed_sig_desc i2c4_link[] = {
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{ 0x418, GENMASK(15, 14), 1 },
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{ 0x4B8, GENMASK(15, 14), 0 },
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};
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static struct aspeed_sig_desc i2c5_link[] = {
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{ 0x418, GENMASK(17, 16), 0 },
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};
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static struct aspeed_sig_desc i2c6_link[] = {
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{ 0x418, GENMASK(19, 18), 0 },
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};
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static struct aspeed_sig_desc i2c7_link[] = {
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{ 0x418, GENMASK(21, 20), 0 },
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};
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static struct aspeed_sig_desc i2c8_link[] = {
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{ 0x418, GENMASK(23, 22), 0 },
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};
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static struct aspeed_sig_desc i2c9_link[] = {
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{ 0x418, GENMASK(25, 24), 0 },
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};
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static struct aspeed_sig_desc i2c10_link[] = {
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{ 0x418, GENMASK(27, 26), 0 },
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};
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static struct aspeed_sig_desc i2c11_link[] = {
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{ 0x410, GENMASK(1, 0), 1 },
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{ 0x4B0, GENMASK(1, 0), 0 },
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};
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static struct aspeed_sig_desc i2c12_link[] = {
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{ 0x410, GENMASK(3, 2), 1 },
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{ 0x4B0, GENMASK(3, 2), 0 },
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};
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static struct aspeed_sig_desc i2c13_link[] = {
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{ 0x410, GENMASK(5, 4), 1 },
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{ 0x4B0, GENMASK(5, 4), 0 },
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};
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static struct aspeed_sig_desc i2c14_link[] = {
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{ 0x410, GENMASK(7, 6), 1 },
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{ 0x4B0, GENMASK(7, 6), 0 },
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};
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static struct aspeed_sig_desc i2c15_link[] = {
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{ 0x414, GENMASK(29, 28), 1 },
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{ 0x4B4, GENMASK(29, 28), 0 },
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};
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static struct aspeed_sig_desc i2c16_link[] = {
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{ 0x414, GENMASK(31, 30), 1 },
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{ 0x4B4, GENMASK(31, 30), 0 },
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};
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static struct aspeed_sig_desc mac1_link[] = {
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{ 0x410, BIT(4), 0 },
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{ 0x470, BIT(4), 1 },
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};
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static struct aspeed_sig_desc mac2_link[] = {
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{ 0x410, BIT(5), 0 },
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{ 0x470, BIT(5), 1 },
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};
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static struct aspeed_sig_desc mac3_link[] = {
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{ 0x410, BIT(6), 0 },
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{ 0x470, BIT(6), 1 },
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};
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static struct aspeed_sig_desc mac4_link[] = {
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{ 0x410, BIT(7), 0 },
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{ 0x470, BIT(7), 1 },
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};
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static struct aspeed_sig_desc rgmii1[] = {
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{ 0x500, BIT(6), 0 },
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{ 0x400, GENMASK(11, 0), 0 },
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};
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static struct aspeed_sig_desc rgmii2[] = {
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{ 0x500, BIT(7), 0 },
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{ 0x400, GENMASK(23, 12), 0 },
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};
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static struct aspeed_sig_desc rgmii3[] = {
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{ 0x510, BIT(0), 0 },
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{ 0x410, GENMASK(27, 16), 0 },
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};
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static struct aspeed_sig_desc rgmii4[] = {
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{ 0x510, BIT(1), 0 },
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{ 0x410, GENMASK(31, 28), 1 },
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{ 0x4b0, GENMASK(31, 28), 0 },
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{ 0x474, GENMASK(7, 0), 1 },
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{ 0x414, GENMASK(7, 0), 1 },
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{ 0x4b4, GENMASK(7, 0), 0 },
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};
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static struct aspeed_sig_desc rmii1[] = {
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{ 0x504, BIT(6), 0 },
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{ 0x400, GENMASK(3, 0), 0 },
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{ 0x400, GENMASK(11, 6), 0 },
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};
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static struct aspeed_sig_desc rmii2[] = {
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{ 0x504, BIT(7), 0 },
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{ 0x400, GENMASK(15, 12), 0 },
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{ 0x400, GENMASK(23, 18), 0 },
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};
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static struct aspeed_sig_desc rmii3[] = {
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{ 0x514, BIT(0), 0 },
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{ 0x410, GENMASK(27, 22), 0 },
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{ 0x410, GENMASK(19, 16), 0 },
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};
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static struct aspeed_sig_desc rmii4[] = {
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{ 0x514, BIT(1), 0 },
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{ 0x410, GENMASK(7, 2), 1 },
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{ 0x410, GENMASK(31, 28), 1 },
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{ 0x414, GENMASK(7, 2), 1 },
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{ 0x4B0, GENMASK(31, 28), 0 },
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{ 0x4B4, GENMASK(7, 2), 0 },
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};
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static struct aspeed_sig_desc rmii1_rclk_oe[] = {
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{ 0x340, BIT(29), 0 },
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};
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static struct aspeed_sig_desc rmii2_rclk_oe[] = {
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{ 0x340, BIT(30), 0 },
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};
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static struct aspeed_sig_desc rmii3_rclk_oe[] = {
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{ 0x350, BIT(29), 0 },
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};
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static struct aspeed_sig_desc rmii4_rclk_oe[] = {
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{ 0x350, BIT(30), 0 },
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};
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static struct aspeed_sig_desc mdio1_link[] = {
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{ 0x430, BIT(17) | BIT(16), 0 },
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};
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static struct aspeed_sig_desc mdio2_link[] = {
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{ 0x470, BIT(13) | BIT(12), 1 },
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{ 0x410, BIT(13) | BIT(12), 0 },
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};
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static struct aspeed_sig_desc mdio3_link[] = {
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{ 0x470, BIT(1) | BIT(0), 1 },
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{ 0x410, BIT(1) | BIT(0), 0 },
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};
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static struct aspeed_sig_desc mdio4_link[] = {
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{ 0x470, BIT(3) | BIT(2), 1 },
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{ 0x410, BIT(3) | BIT(2), 0 },
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};
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static struct aspeed_sig_desc sdio2_link[] = {
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{ 0x414, GENMASK(23, 16), 1 },
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{ 0x4B4, GENMASK(23, 16), 0 },
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{ 0x450, BIT(1), 0 },
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};
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static struct aspeed_sig_desc sdio1_link[] = {
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{ 0x414, GENMASK(15, 8), 0 },
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};
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/* when sdio1 8bits, sdio2 can't use */
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static struct aspeed_sig_desc sdio1_8bit_link[] = {
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{ 0x414, GENMASK(15, 8), 0 },
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{ 0x4b4, GENMASK(21, 18), 0 },
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{ 0x450, BIT(3), 0 },
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{ 0x450, BIT(1), 1 },
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};
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static struct aspeed_sig_desc emmc_link[] = {
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{ 0x400, GENMASK(31, 24), 0 },
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};
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static struct aspeed_sig_desc emmcg8_link[] = {
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{ 0x400, GENMASK(31, 24), 0 },
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{ 0x404, GENMASK(3, 0), 0 },
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/* set SCU504 to clear the strap bits in SCU500 */
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{ 0x504, BIT(3), 0 },
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{ 0x504, BIT(5), 0 },
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};
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static struct aspeed_sig_desc fmcquad_link[] = {
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{ 0x438, GENMASK(5, 4), 0 },
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};
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static struct aspeed_sig_desc spi1_link[] = {
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{ 0x438, GENMASK(13, 11), 0 },
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};
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static struct aspeed_sig_desc spi1abr_link[] = {
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{ 0x438, BIT(9), 0 },
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};
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static struct aspeed_sig_desc spi1cs1_link[] = {
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{ 0x438, BIT(8), 0 },
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};
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static struct aspeed_sig_desc spi1wp_link[] = {
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{ 0x438, BIT(10), 0 },
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};
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static struct aspeed_sig_desc spi1quad_link[] = {
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{ 0x438, GENMASK(15, 14), 0 },
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};
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static struct aspeed_sig_desc spi2_link[] = {
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{ 0x434, GENMASK(29, 27) | BIT(24), 0 },
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};
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static struct aspeed_sig_desc spi2cs1_link[] = {
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{ 0x434, BIT(25), 0 },
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};
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static struct aspeed_sig_desc spi2cs2_link[] = {
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{ 0x434, BIT(26), 0 },
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};
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static struct aspeed_sig_desc spi2quad_link[] = {
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{ 0x434, GENMASK(31, 30), 0 },
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};
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static struct aspeed_sig_desc fsi1[] = {
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{ 0xd48, GENMASK(21, 20), 0 },
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};
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static struct aspeed_sig_desc fsi2[] = {
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{ 0xd48, GENMASK(23, 22), 0 },
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};
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static struct aspeed_sig_desc usb2ad_link[] = {
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{ 0x440, BIT(24), 0 },
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{ 0x440, BIT(25), 1 },
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};
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static struct aspeed_sig_desc usb2ah_link[] = {
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{ 0x440, BIT(24), 1 },
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{ 0x440, BIT(25), 0 },
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};
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static struct aspeed_sig_desc usb2bh_link[] = {
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{ 0x440, BIT(28), 1 },
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{ 0x440, BIT(29), 0 },
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};
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static struct aspeed_sig_desc pcie0rc_link[] = {
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{ 0x40, BIT(21), 0 },
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};
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static struct aspeed_sig_desc pcie1rc_link[] = {
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{ 0x40, BIT(19), 0 }, /* SSPRST# output enable */
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{ 0x500, BIT(24), 0 }, /* dedicate rc reset */
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};
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static const struct aspeed_group_config ast2600_groups[] = {
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{ "MAC1LINK", ARRAY_SIZE(mac1_link), mac1_link },
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{ "MAC2LINK", ARRAY_SIZE(mac2_link), mac2_link },
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{ "MAC3LINK", ARRAY_SIZE(mac3_link), mac3_link },
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{ "MAC4LINK", ARRAY_SIZE(mac4_link), mac4_link },
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{ "RGMII1", ARRAY_SIZE(rgmii1), rgmii1 },
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{ "RGMII2", ARRAY_SIZE(rgmii2), rgmii2 },
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{ "RGMII3", ARRAY_SIZE(rgmii3), rgmii3 },
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{ "RGMII4", ARRAY_SIZE(rgmii4), rgmii4 },
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{ "RMII1", ARRAY_SIZE(rmii1), rmii1 },
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{ "RMII2", ARRAY_SIZE(rmii2), rmii2 },
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{ "RMII3", ARRAY_SIZE(rmii3), rmii3 },
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{ "RMII4", ARRAY_SIZE(rmii4), rmii4 },
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{ "RMII1RCLK", ARRAY_SIZE(rmii1_rclk_oe), rmii1_rclk_oe },
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{ "RMII2RCLK", ARRAY_SIZE(rmii2_rclk_oe), rmii2_rclk_oe },
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{ "RMII3RCLK", ARRAY_SIZE(rmii3_rclk_oe), rmii3_rclk_oe },
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{ "RMII4RCLK", ARRAY_SIZE(rmii4_rclk_oe), rmii4_rclk_oe },
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{ "MDIO1", ARRAY_SIZE(mdio1_link), mdio1_link },
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{ "MDIO2", ARRAY_SIZE(mdio2_link), mdio2_link },
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{ "MDIO3", ARRAY_SIZE(mdio3_link), mdio3_link },
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{ "MDIO4", ARRAY_SIZE(mdio4_link), mdio4_link },
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{ "SD1", ARRAY_SIZE(sdio1_link), sdio1_link },
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{ "SD1_8bits", ARRAY_SIZE(sdio1_8bit_link), sdio1_8bit_link },
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{ "SD2", ARRAY_SIZE(sdio2_link), sdio2_link },
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{ "EMMC", ARRAY_SIZE(emmc_link), emmc_link },
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{ "EMMCG8", ARRAY_SIZE(emmcg8_link), emmcg8_link },
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{ "FMCQUAD", ARRAY_SIZE(fmcquad_link), fmcquad_link },
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{ "SPI1", ARRAY_SIZE(spi1_link), spi1_link },
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{ "SPI1ABR", ARRAY_SIZE(spi1abr_link), spi1abr_link },
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{ "SPI1CS1", ARRAY_SIZE(spi1cs1_link), spi1cs1_link },
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{ "SPI1WP", ARRAY_SIZE(spi1wp_link), spi1wp_link },
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{ "SPI1QUAD", ARRAY_SIZE(spi1quad_link), spi1quad_link },
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{ "SPI2", ARRAY_SIZE(spi2_link), spi2_link },
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{ "SPI2CS1", ARRAY_SIZE(spi2cs1_link), spi2cs1_link },
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{ "SPI2CS2", ARRAY_SIZE(spi2cs2_link), spi2cs2_link },
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{ "SPI2QUAD", ARRAY_SIZE(spi2quad_link), spi2quad_link },
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{ "I2C1", ARRAY_SIZE(i2c1_link), i2c1_link },
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{ "I2C2", ARRAY_SIZE(i2c2_link), i2c2_link },
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{ "I2C3", ARRAY_SIZE(i2c3_link), i2c3_link },
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{ "I2C4", ARRAY_SIZE(i2c4_link), i2c4_link },
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{ "I2C5", ARRAY_SIZE(i2c5_link), i2c5_link },
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{ "I2C6", ARRAY_SIZE(i2c6_link), i2c6_link },
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{ "I2C7", ARRAY_SIZE(i2c7_link), i2c7_link },
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{ "I2C8", ARRAY_SIZE(i2c8_link), i2c8_link },
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{ "I2C9", ARRAY_SIZE(i2c9_link), i2c9_link },
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{ "I2C10", ARRAY_SIZE(i2c10_link), i2c10_link },
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{ "I2C11", ARRAY_SIZE(i2c11_link), i2c11_link },
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{ "I2C12", ARRAY_SIZE(i2c12_link), i2c12_link },
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{ "I2C13", ARRAY_SIZE(i2c13_link), i2c13_link },
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{ "I2C14", ARRAY_SIZE(i2c14_link), i2c14_link },
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{ "I2C15", ARRAY_SIZE(i2c15_link), i2c15_link },
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{ "I2C16", ARRAY_SIZE(i2c16_link), i2c16_link },
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{ "FSI1", ARRAY_SIZE(fsi1), fsi1 },
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{ "FSI2", ARRAY_SIZE(fsi2), fsi2 },
|
||||
{ "USB2AD", ARRAY_SIZE(usb2ad_link), usb2ad_link },
|
||||
{ "USB2AH", ARRAY_SIZE(usb2ah_link), usb2ah_link },
|
||||
{ "USB2BH", ARRAY_SIZE(usb2bh_link), usb2bh_link },
|
||||
{ "PCIE0RC", ARRAY_SIZE(pcie0rc_link), pcie0rc_link },
|
||||
{ "PCIE1RC", ARRAY_SIZE(pcie1rc_link), pcie1rc_link },
|
||||
};
|
||||
|
||||
static int ast2600_pinctrl_get_groups_count(struct udevice *dev)
|
||||
{
|
||||
debug("PINCTRL: get_(functions/groups)_count\n");
|
||||
|
||||
return ARRAY_SIZE(ast2600_groups);
|
||||
}
|
||||
|
||||
static const char *ast2600_pinctrl_get_group_name(struct udevice *dev,
|
||||
unsigned selector)
|
||||
{
|
||||
debug("PINCTRL: get_(function/group)_name %u\n", selector);
|
||||
|
||||
return ast2600_groups[selector].group_name;
|
||||
}
|
||||
|
||||
static int ast2600_pinctrl_group_set(struct udevice *dev, unsigned selector, unsigned func_selector)
|
||||
{
|
||||
struct ast2600_pinctrl_priv *priv = dev_get_priv(dev);
|
||||
const struct aspeed_group_config *config;
|
||||
const struct aspeed_sig_desc *descs;
|
||||
u32 ctrl_reg = (u32)priv->scu;
|
||||
u32 i;
|
||||
|
||||
debug("PINCTRL: group_set <%u, %u>\n", selector, func_selector);
|
||||
if (selector >= ARRAY_SIZE(ast2600_groups))
|
||||
return -EINVAL;
|
||||
|
||||
config = &ast2600_groups[selector];
|
||||
for (i = 0; i < config->ndescs; i++) {
|
||||
descs = &config->descs[i];
|
||||
if (descs->clr)
|
||||
clrbits_le32((u32)ctrl_reg + descs->offset, descs->reg_set);
|
||||
else
|
||||
setbits_le32((u32)ctrl_reg + descs->offset, descs->reg_set);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct pinctrl_ops ast2600_pinctrl_ops = {
|
||||
.set_state = pinctrl_generic_set_state,
|
||||
.get_groups_count = ast2600_pinctrl_get_groups_count,
|
||||
.get_group_name = ast2600_pinctrl_get_group_name,
|
||||
.get_functions_count = ast2600_pinctrl_get_groups_count,
|
||||
.get_function_name = ast2600_pinctrl_get_group_name,
|
||||
.pinmux_group_set = ast2600_pinctrl_group_set,
|
||||
};
|
||||
|
||||
static const struct udevice_id ast2600_pinctrl_ids[] = {
|
||||
{ .compatible = "aspeed,g6-pinctrl" },
|
||||
{ }
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(pinctrl_aspeed) = {
|
||||
.name = "aspeed_ast2600_pinctrl",
|
||||
.id = UCLASS_PINCTRL,
|
||||
.of_match = ast2600_pinctrl_ids,
|
||||
.priv_auto = sizeof(struct ast2600_pinctrl_priv),
|
||||
.ops = &ast2600_pinctrl_ops,
|
||||
.probe = ast2600_pinctrl_probe,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user