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"
25 #include "omap-secure.h"
29 const char *compatible
;
33 struct of_dev_auxdata omap_auxdata_lookup
[];
34 static struct twl4030_gpio_platform_data twl_gpio_auxdata
;
37 * Create alias for USB host PHY clock.
38 * Remove this when clock phandle can be provided via DT
40 static void __init __used
legacy_init_ehci_clk(char *clkname
)
44 ret
= clk_add_alias("main_clk", NULL
, clkname
, NULL
);
46 pr_err("%s:Failed to add main_clk alias to %s :%d\n",
47 __func__
, clkname
, ret
);
50 #if IS_ENABLED(CONFIG_WL12XX)
52 static struct wl12xx_platform_data wl12xx __initdata
;
54 static void __init __used
legacy_init_wl12xx(unsigned ref_clock
,
60 wl12xx
.board_ref_clock
= ref_clock
;
61 wl12xx
.board_tcxo_clock
= tcxo_clock
;
62 wl12xx
.irq
= gpio_to_irq(gpio
);
64 res
= wl12xx_set_platform_data(&wl12xx
);
66 pr_err("error setting wl12xx data: %d\n", res
);
71 static inline void legacy_init_wl12xx(unsigned ref_clock
,
78 #ifdef CONFIG_MACH_NOKIA_N8X0
79 static void __init
omap2420_n8x0_legacy_init(void)
81 omap_auxdata_lookup
[0].platform_data
= n8x0_legacy_init();
84 #define omap2420_n8x0_legacy_init NULL
87 #ifdef CONFIG_ARCH_OMAP3
88 static void __init
hsmmc2_internal_input_clk(void)
92 reg
= omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1
);
93 reg
|= OMAP2_MMCSDIO2ADPCLKISEL
;
94 omap_ctrl_writel(reg
, OMAP343X_CONTROL_DEVCONF1
);
97 static int omap3_sbc_t3730_twl_callback(struct device
*dev
,
103 res
= gpio_request_one(gpio
+ 2, GPIOF_OUT_INIT_HIGH
,
108 gpio_export(gpio
, 0);
113 static void __init
omap3_sbc_t3730_twl_init(void)
115 twl_gpio_auxdata
.setup
= omap3_sbc_t3730_twl_callback
;
118 static void __init
omap3_sbc_t3730_legacy_init(void)
120 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 136);
121 omap_ads7846_init(1, 57, 0, NULL
);
124 static void __init
omap3_igep0020_legacy_init(void)
126 omap3_igep2_display_init_of();
129 static void __init
omap3_evm_legacy_init(void)
131 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 149);
134 static void __init
omap3_zoom_legacy_init(void)
136 legacy_init_wl12xx(WL12XX_REFCLOCK_26
, 0, 162);
139 static void am35xx_enable_emac_int(void)
143 v
= omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
);
144 v
|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR
| AM35XX_CPGMAC_C0_TX_PULSE_CLR
|
145 AM35XX_CPGMAC_C0_MISC_PULSE_CLR
| AM35XX_CPGMAC_C0_RX_THRESH_CLR
);
146 omap_ctrl_writel(v
, AM35XX_CONTROL_LVL_INTR_CLEAR
);
147 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
); /* OCP barrier */
150 static void am35xx_disable_emac_int(void)
154 v
= omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
);
155 v
|= (AM35XX_CPGMAC_C0_RX_PULSE_CLR
| AM35XX_CPGMAC_C0_TX_PULSE_CLR
);
156 omap_ctrl_writel(v
, AM35XX_CONTROL_LVL_INTR_CLEAR
);
157 omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR
); /* OCP barrier */
160 static struct emac_platform_data am35xx_emac_pdata
= {
161 .interrupt_enable
= am35xx_enable_emac_int
,
162 .interrupt_disable
= am35xx_disable_emac_int
,
165 static void __init
am3517_evm_legacy_init(void)
169 v
= omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET
);
170 v
&= ~AM35XX_CPGMACSS_SW_RST
;
171 omap_ctrl_writel(v
, AM35XX_CONTROL_IP_SW_RESET
);
172 omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET
); /* OCP barrier */
175 static void __init
nokia_n900_legacy_init(void)
177 hsmmc2_internal_input_clk();
179 if (omap_type() == OMAP2_DEVICE_TYPE_SEC
) {
180 if (IS_ENABLED(CONFIG_ARM_ERRATA_430973
)) {
181 pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
183 rx51_secure_update_aux_cr(BIT(6), 0);
185 pr_warning("RX-51: Not enabling ARM errata 430973 workaround\n");
186 pr_warning("Thumb binaries may crash randomly without this workaround\n");
190 #endif /* CONFIG_ARCH_OMAP3 */
192 #ifdef CONFIG_ARCH_OMAP4
193 static void __init
omap4_sdp_legacy_init(void)
195 omap_4430sdp_display_init_of();
196 legacy_init_wl12xx(WL12XX_REFCLOCK_26
,
197 WL12XX_TCXOCLOCK_26
, 53);
200 static void __init
omap4_panda_legacy_init(void)
202 omap4_panda_display_init_of();
203 legacy_init_ehci_clk("auxclk3_ck");
204 legacy_init_wl12xx(WL12XX_REFCLOCK_38
, 0, 53);
208 #ifdef CONFIG_SOC_OMAP5
209 static void __init
omap5_uevm_legacy_init(void)
211 legacy_init_ehci_clk("auxclk1_ck");
215 static struct pcs_pdata pcs_pdata
;
217 void omap_pcs_legacy_init(int irq
, void (*rearm
)(void))
220 pcs_pdata
.rearm
= rearm
;
224 * GPIOs for TWL are initialized by the I2C bus and need custom
225 * handing until DSS has device tree bindings.
227 void omap_auxdata_legacy_init(struct device
*dev
)
229 if (dev
->platform_data
)
232 if (strcmp("twl4030-gpio", dev_name(dev
)))
235 dev
->platform_data
= &twl_gpio_auxdata
;
239 * Few boards still need auxdata populated before we populate
240 * the dev entries in of_platform_populate().
242 static struct pdata_init auxdata_quirks
[] __initdata
= {
243 #ifdef CONFIG_SOC_OMAP2420
244 { "nokia,n800", omap2420_n8x0_legacy_init
, },
245 { "nokia,n810", omap2420_n8x0_legacy_init
, },
246 { "nokia,n810-wimax", omap2420_n8x0_legacy_init
, },
248 #ifdef CONFIG_ARCH_OMAP3
249 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init
, },
254 struct of_dev_auxdata omap_auxdata_lookup
[] __initdata
= {
255 #ifdef CONFIG_MACH_NOKIA_N8X0
256 OF_DEV_AUXDATA("ti,omap2420-mmc", 0x4809c000, "mmci-omap.0", NULL
),
258 #ifdef CONFIG_ARCH_OMAP3
259 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata
),
260 OF_DEV_AUXDATA("ti,omap3-padconf", 0x480025a0, "480025a0.pinmux", &pcs_pdata
),
261 OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata
),
263 OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL
),
264 OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0",
267 #ifdef CONFIG_ARCH_OMAP4
268 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata
),
269 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata
),
275 * Few boards still need to initialize some legacy devices with
276 * platform data until the drivers support device tree.
278 static struct pdata_init pdata_quirks
[] __initdata
= {
279 #ifdef CONFIG_ARCH_OMAP3
280 { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init
, },
281 { "nokia,omap3-n900", nokia_n900_legacy_init
, },
282 { "nokia,omap3-n9", hsmmc2_internal_input_clk
, },
283 { "nokia,omap3-n950", hsmmc2_internal_input_clk
, },
284 { "isee,omap3-igep0020", omap3_igep0020_legacy_init
, },
285 { "ti,omap3-evm-37xx", omap3_evm_legacy_init
, },
286 { "ti,omap3-zoom3", omap3_zoom_legacy_init
, },
287 { "ti,am3517-evm", am3517_evm_legacy_init
, },
289 #ifdef CONFIG_ARCH_OMAP4
290 { "ti,omap4-sdp", omap4_sdp_legacy_init
, },
291 { "ti,omap4-panda", omap4_panda_legacy_init
, },
293 #ifdef CONFIG_SOC_OMAP5
294 { "ti,omap5-uevm", omap5_uevm_legacy_init
, },
299 static void pdata_quirks_check(struct pdata_init
*quirks
)
301 while (quirks
->compatible
) {
302 if (of_machine_is_compatible(quirks
->compatible
)) {
311 void __init
pdata_quirks_init(struct of_device_id
*omap_dt_match_table
)
313 omap_sdrc_init(NULL
, NULL
);
314 pdata_quirks_check(auxdata_quirks
);
315 of_platform_populate(NULL
, omap_dt_match_table
,
316 omap_auxdata_lookup
, NULL
);
317 pdata_quirks_check(pdata_quirks
);