2 * Legacy platform_data quirks
4 * Copyright (C) 2013 Texas Instruments
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 #include <linux/clk.h>
11 #include <linux/davinci_emac.h>
12 #include <linux/gpio.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/of_platform.h>
16 #include <linux/wl12xx.h>
18 #include <linux/platform_data/pinctrl-single.h>
22 #include "common-board-devices.h"
23 #include "dss-common.h"
27 const char *compatible
;
31 struct of_dev_auxdata omap_auxdata_lookup
[];
32 static struct twl4030_gpio_platform_data twl_gpio_auxdata
;
35 * Create alias for USB host PHY clock.
36 * Remove this when clock phandle can be provided via DT
38 static void __init __used
legacy_init_ehci_clk(char *clkname
)
42 ret
= clk_add_alias("main_clk", NULL
, clkname
, NULL
);
44 pr_err("%s:Failed to add main_clk alias to %s :%d\n",
45 __func__
, clkname
, ret
);
48 #if IS_ENABLED(CONFIG_WL12XX)
50 static struct wl12xx_platform_data wl12xx __initdata
;
52 static void __init __used
legacy_init_wl12xx(unsigned ref_clock
,
58 wl12xx
.board_ref_clock
= ref_clock
;
59 wl12xx
.board_tcxo_clock
= tcxo_clock
;
60 wl12xx
.irq
= gpio_to_irq(gpio
);
62 res
= wl12xx_set_platform_data(&wl12xx
);
64 pr_err("error setting wl12xx data: %d\n", res
);
69 static inline void legacy_init_wl12xx(unsigned ref_clock
,
76 #ifdef CONFIG_MACH_NOKIA_N8X0
77 static void __init
omap2420_n8x0_legacy_init(void)
79 omap_auxdata_lookup
[0].platform_data
= n8x0_legacy_init();
82 #define omap2420_n8x0_legacy_init NULL
85 #ifdef CONFIG_ARCH_OMAP3
86 static void __init
hsmmc2_internal_input_clk(void)
90 reg
= omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1
);
91 reg
|= OMAP2_MMCSDIO2ADPCLKISEL
;
92 omap_ctrl_writel(reg
, OMAP343X_CONTROL_DEVCONF1
);
95 static int omap3_sbc_t3730_twl_callback(struct device
*dev
,
101 res
= gpio_request_one(gpio
+ 2, GPIOF_OUT_INIT_HIGH
,
106 gpio_export(gpio
, 0);
111 static void __init
omap3_sbc_t3730_twl_init(void)
113 twl_gpio_auxdata
.setup
= omap3_sbc_t3730_twl_callback
;
116 static void __init
omap3_sbc_t3730_legacy_init(void)
118 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 136);
119 omap_ads7846_init(1, 57, 0, NULL
);
122 static void __init
omap3_sbc_t3530_legacy_init(void)
124 omap_ads7846_init(1, 57, 0, NULL
);
127 static void __init
omap3_igep0020_legacy_init(void)
129 omap3_igep2_display_init_of();
132 static void __init
omap3_evm_legacy_init(void)
134 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 149);
137 static void __init
omap3_zoom_legacy_init(void)
139 legacy_init_wl12xx(WL12XX_REFCLOCK_26
, 0, 162);
142 static void am35xx_enable_emac_int(void)
146 v
= omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
);
147 v
|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR
| AM35XX_CPGMAC_C0_TX_PULSE_CLR
|
148 AM35XX_CPGMAC_C0_MISC_PULSE_CLR
| AM35XX_CPGMAC_C0_RX_THRESH_CLR
);
149 omap_ctrl_writel(v
, AM35XX_CONTROL_LVL_INTR_CLEAR
);
150 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
); /* OCP barrier */
153 static void am35xx_disable_emac_int(void)
157 v
= omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
);
158 v
|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR
| AM35XX_CPGMAC_C0_TX_PULSE_CLR
);
159 omap_ctrl_writel(v
, AM35XX_CONTROL_LVL_INTR_CLEAR
);
160 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
); /* OCP barrier */
163 static struct emac_platform_data am35xx_emac_pdata
= {
164 .interrupt_enable
= am35xx_enable_emac_int
,
165 .interrupt_disable
= am35xx_disable_emac_int
,
168 static void __init
am3517_evm_legacy_init(void)
172 v
= omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET
);
173 v
&= ~AM35XX_CPGMACSS_SW_RST
;
174 omap_ctrl_writel(v
, AM35XX_CONTROL_IP_SW_RESET
);
175 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET
); /* OCP barrier */
177 #endif /* CONFIG_ARCH_OMAP3 */
179 #ifdef CONFIG_ARCH_OMAP4
180 static void __init
omap4_sdp_legacy_init(void)
182 omap_4430sdp_display_init_of();
183 legacy_init_wl12xx(WL12XX_REFCLOCK_26
,
184 WL12XX_TCXOCLOCK_26
, 53);
187 static void __init
omap4_panda_legacy_init(void)
189 omap4_panda_display_init_of();
190 legacy_init_ehci_clk("auxclk3_ck");
191 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 53);
195 #ifdef CONFIG_SOC_OMAP5
196 static void __init
omap5_uevm_legacy_init(void)
198 legacy_init_ehci_clk("auxclk1_ck");
202 static struct pcs_pdata pcs_pdata
;
204 void omap_pcs_legacy_init(int irq
, void (*rearm
)(void))
207 pcs_pdata
.rearm
= rearm
;
211 * GPIOs for TWL are initialized by the I2C bus and need custom
212 * handing until DSS has device tree bindings.
214 void omap_auxdata_legacy_init(struct device
*dev
)
216 if (dev
->platform_data
)
219 if (strcmp("twl4030-gpio", dev_name(dev
)))
222 dev
->platform_data
= &twl_gpio_auxdata
;
226 * Few boards still need auxdata populated before we populate
227 * the dev entries in of_platform_populate().
229 static struct pdata_init auxdata_quirks
[] __initdata
= {
230 #ifdef CONFIG_SOC_OMAP2420
231 { "nokia,n800", omap2420_n8x0_legacy_init
, },
232 { "nokia,n810", omap2420_n8x0_legacy_init
, },
233 { "nokia,n810-wimax", omap2420_n8x0_legacy_init
, },
235 #ifdef CONFIG_ARCH_OMAP3
236 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init
, },
241 struct of_dev_auxdata omap_auxdata_lookup
[] __initdata
= {
242 #ifdef CONFIG_MACH_NOKIA_N8X0
243 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL
),
245 #ifdef CONFIG_ARCH_OMAP3
246 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata
),
247 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata
),
249 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL
),
250 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
253 #ifdef CONFIG_ARCH_OMAP4
254 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata
),
255 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata
),
261 * Few boards still need to initialize some legacy devices with
262 * platform data until the drivers support device tree.
264 static struct pdata_init pdata_quirks
[] __initdata
= {
265 #ifdef CONFIG_ARCH_OMAP3
266 { "compulab,omap3-sbc-t3530", omap3_sbc_t3530_legacy_init
, },
267 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init
, },
268 { "nokia,omap3-n900", hsmmc2_internal_input_clk
, },
269 { "nokia,omap3-n9", hsmmc2_internal_input_clk
, },
270 { "nokia,omap3-n950", hsmmc2_internal_input_clk
, },
271 { "isee,omap3-igep0020", omap3_igep0020_legacy_init
, },
272 { "ti,omap3-evm-37xx", omap3_evm_legacy_init
, },
273 { "ti,omap3-zoom3", omap3_zoom_legacy_init
, },
274 { "ti,am3517-evm", am3517_evm_legacy_init
, },
276 #ifdef CONFIG_ARCH_OMAP4
277 { "ti,omap4-sdp", omap4_sdp_legacy_init
, },
278 { "ti,omap4-panda", omap4_panda_legacy_init
, },
280 #ifdef CONFIG_SOC_OMAP5
281 { "ti,omap5-uevm", omap5_uevm_legacy_init
, },
286 static void pdata_quirks_check(struct pdata_init
*quirks
)
288 while (quirks
->compatible
) {
289 if (of_machine_is_compatible(quirks
->compatible
)) {
298 void __init
pdata_quirks_init(struct of_device_id
*omap_dt_match_table
)
300 omap_sdrc_init(NULL
, NULL
);
301 pdata_quirks_check(auxdata_quirks
);
302 of_platform_populate(NULL
, omap_dt_match_table
,
303 omap_auxdata_lookup
, NULL
);
304 pdata_quirks_check(pdata_quirks
);