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/*
* Legacy platform_data quirks
*
* Copyright (C) 2013 Texas Instruments
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/of_platform.h>
#include <linux/wl12xx.h>
#include <linux/platform_data/pinctrl-single.h>
#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"
#include "control.h"
struct pdata_init {
const char *compatible;
void (*fn)(void);
};
/*
* Create alias for USB host PHY clock.
* Remove this when clock phandle can be provided via DT
*/
static void __init __used legacy_init_ehci_clk(char *clkname)
{
int ret;
ret = clk_add_alias("main_clk", NULL, clkname, NULL);
if (ret)
pr_err("%s:Failed to add main_clk alias to %s :%d\n",
__func__, clkname, ret);
}
#if IS_ENABLED(CONFIG_WL12XX)
static struct wl12xx_platform_data wl12xx __initdata;
static void __init __used legacy_init_wl12xx(unsigned ref_clock,
unsigned tcxo_clock,
int gpio)
{
int res;
wl12xx.board_ref_clock = ref_clock;
wl12xx.board_tcxo_clock = tcxo_clock;
wl12xx.irq = gpio_to_irq(gpio);
res = wl12xx_set_platform_data(&wl12xx);
if (res) {
pr_err("error setting wl12xx data: %d\n", res);
return;
}
}
#else
static inline void legacy_init_wl12xx(unsigned ref_clock,
unsigned tcxo_clock,
int gpio)
{
}
#endif
#ifdef CONFIG_ARCH_OMAP3
static void __init hsmmc2_internal_input_clk(void)
{
u32 reg;
reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
}
static void __init omap3_igep0020_legacy_init(void)
{
omap3_igep2_display_init_of();
}
static void __init omap3_evm_legacy_init(void)
{
legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
}
static void __init omap3_zoom_legacy_init(void)
{
legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
}
#endif /* CONFIG_ARCH_OMAP3 */
#ifdef CONFIG_ARCH_OMAP4
static void __init omap4_sdp_legacy_init(void)
{
omap_4430sdp_display_init_of();
legacy_init_wl12xx(WL12XX_REFCLOCK_26,
WL12XX_TCXOCLOCK_26, 53);
}
static void __init omap4_panda_legacy_init(void)
{
omap4_panda_display_init_of();
legacy_init_ehci_clk("auxclk3_ck");
legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53);
}
#endif
#ifdef CONFIG_SOC_OMAP5
static void __init omap5_uevm_legacy_init(void)
{
legacy_init_ehci_clk("auxclk1_ck");
}
#endif
static struct pcs_pdata pcs_pdata;
void omap_pcs_legacy_init(int irq, void (*rearm)(void))
{
pcs_pdata.irq = irq;
pcs_pdata.rearm = rearm;
}
/*
* Few boards still need auxdata populated before we populate
* the dev entries in of_platform_populate().
*/
static struct pdata_init auxdata_quirks[] __initdata = {
{ /* sentinel */ },
};
struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
#ifdef CONFIG_MACH_NOKIA_N8X0
OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL),
#endif
#ifdef CONFIG_ARCH_OMAP3
OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
#endif
#ifdef CONFIG_ARCH_OMAP4
OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
#endif
{ /* sentinel */ },
};
/*
* Few boards still need to initialize some legacy devices with
* platform data until the drivers support device tree.
*/
static struct pdata_init pdata_quirks[] __initdata = {
#ifdef CONFIG_ARCH_OMAP3
{ "nokia,omap3-n900", hsmmc2_internal_input_clk, },
{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
{ "ti,omap3-zoom3", omap3_zoom_legacy_init, },
#endif
#ifdef CONFIG_ARCH_OMAP4
{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
{ "ti,omap4-panda", omap4_panda_legacy_init, },
#endif
#ifdef CONFIG_SOC_OMAP5
{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
#endif
{ /* sentinel */ },
};
static void pdata_quirks_check(struct pdata_init *quirks)
{
while (quirks->compatible) {
if (of_machine_is_compatible(quirks->compatible)) {
if (quirks->fn)
quirks->fn();
break;
}
quirks++;
}
}
void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table)
{
omap_sdrc_init(NULL, NULL);
pdata_quirks_check(auxdata_quirks);
of_platform_populate(NULL, omap_dt_match_table,
omap_auxdata_lookup, NULL);
pdata_quirks_check(pdata_quirks);
}
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