diff options
Diffstat (limited to 'arch/arm/mach-omap2/pdata-quirks.c')
| -rw-r--r-- | arch/arm/mach-omap2/pdata-quirks.c | 159 |
1 files changed, 151 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c index 39f020c982e8..c33e07e2f0d4 100644 --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ #include <linux/clk.h> +#include <linux/davinci_emac.h> #include <linux/gpio.h> #include <linux/init.h> #include <linux/kernel.h> @@ -16,16 +17,22 @@ #include <linux/platform_data/pinctrl-single.h> +#include "am35xx.h" #include "common.h" #include "common-board-devices.h" #include "dss-common.h" #include "control.h" +#include "omap-secure.h" +#include "soc.h" struct pdata_init { const char *compatible; void (*fn)(void); }; +struct of_dev_auxdata omap_auxdata_lookup[]; +static struct twl4030_gpio_platform_data twl_gpio_auxdata; + /* * Create alias for USB host PHY clock. * Remove this when clock phandle can be provided via DT @@ -68,6 +75,15 @@ static inline void legacy_init_wl12xx(unsigned ref_clock, } #endif +#ifdef CONFIG_MACH_NOKIA_N8X0 +static void __init omap2420_n8x0_legacy_init(void) +{ + omap_auxdata_lookup[0].platform_data = n8x0_legacy_init(); +} +#else +#define omap2420_n8x0_legacy_init NULL +#endif + #ifdef CONFIG_ARCH_OMAP3 static void __init hsmmc2_internal_input_clk(void) { @@ -78,6 +94,33 @@ static void __init hsmmc2_internal_input_clk(void) omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1); } +static int omap3_sbc_t3730_twl_callback(struct device *dev, + unsigned gpio, + unsigned ngpio) +{ + int res; + + res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, + "wlan rst"); + if (res) + return res; + + gpio_export(gpio, 0); + + return 0; +} + +static void __init omap3_sbc_t3730_twl_init(void) +{ + twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback; +} + +static void __init omap3_sbc_t3730_legacy_init(void) +{ + legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 136); + omap_ads7846_init(1, 57, 0, NULL); +} + static void __init omap3_igep0020_legacy_init(void) { omap3_igep2_display_init_of(); @@ -92,6 +135,58 @@ static void __init omap3_zoom_legacy_init(void) { legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162); } + +static void am35xx_enable_emac_int(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR | + AM35XX_CPGMAC_C0_MISC_PULSE_CLR | AM35XX_CPGMAC_C0_RX_THRESH_CLR); + omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); + omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ +} + +static void am35xx_disable_emac_int(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + v |= (AM35XX_CPGMAC_C0_RX_PULSE_CLR | AM35XX_CPGMAC_C0_TX_PULSE_CLR); + omap_ctrl_writel(v, AM35XX_CONTROL_LVL_INTR_CLEAR); + omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); /* OCP barrier */ +} + +static struct emac_platform_data am35xx_emac_pdata = { + .interrupt_enable = am35xx_enable_emac_int, + .interrupt_disable = am35xx_disable_emac_int, +}; + +static void __init am3517_evm_legacy_init(void) +{ + u32 v; + + v = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); + v &= ~AM35XX_CPGMACSS_SW_RST; + omap_ctrl_writel(v, AM35XX_CONTROL_IP_SW_RESET); + omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); /* OCP barrier */ +} + +static void __init nokia_n900_legacy_init(void) +{ + hsmmc2_internal_input_clk(); + + if (omap_type() == OMAP2_DEVICE_TYPE_SEC) { + if (IS_ENABLED(CONFIG_ARM_ERRATA_430973)) { + pr_info("RX-51: Enabling ARM errata 430973 workaround\n"); + /* set IBE to 1 */ + rx51_secure_update_aux_cr(BIT(6), 0); + } else { + pr_warning("RX-51: Not enabling ARM errata 430973 workaround\n"); + pr_warning("Thumb binaries may crash randomly without this workaround\n"); + } + } +} #endif /* CONFIG_ARCH_OMAP3 */ #ifdef CONFIG_ARCH_OMAP4 @@ -125,10 +220,49 @@ void omap_pcs_legacy_init(int irq, void (*rearm)(void)) pcs_pdata.rearm = rearm; } +/* + * GPIOs for TWL are initialized by the I2C bus and need custom + * handing until DSS has device tree bindings. + */ +void omap_auxdata_legacy_init(struct device *dev) +{ + if (dev->platform_data) + return; + + if (strcmp("twl4030-gpio", dev_name(dev))) + return; + + dev->platform_data = &twl_gpio_auxdata; +} + +/* + * Few boards still need auxdata populated before we populate + * the dev entries in of_platform_populate(). + */ +static struct pdata_init auxdata_quirks[] __initdata = { +#ifdef CONFIG_SOC_OMAP2420 + { "nokia,n800", omap2420_n8x0_legacy_init, }, + { "nokia,n810", omap2420_n8x0_legacy_init, }, + { "nokia,n810-wimax", omap2420_n8x0_legacy_init, }, +#endif +#ifdef CONFIG_ARCH_OMAP3 + { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, }, +#endif + { /* 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", 0x480025a0, "480025a0.pinmux", &pcs_pdata), OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata), + /* Only on am3517 */ + OF_DEV_AUXDATA("ti,davinci_mdio", 0x5c030000, "davinci_mdio.0", NULL), + OF_DEV_AUXDATA("ti,am3517-emac", 0x5c000000, "davinci_emac.0", + &am35xx_emac_pdata), #endif #ifdef CONFIG_ARCH_OMAP4 OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata), @@ -137,14 +271,20 @@ struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { { /* 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, }, + { "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, }, + { "nokia,omap3-n900", nokia_n900_legacy_init, }, { "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, }, + { "ti,am3517-evm", am3517_evm_legacy_init, }, #endif #ifdef CONFIG_ARCH_OMAP4 { "ti,omap4-sdp", omap4_sdp_legacy_init, }, @@ -156,14 +296,8 @@ static struct pdata_init pdata_quirks[] __initdata = { { /* sentinel */ }, }; -void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) +static void pdata_quirks_check(struct pdata_init *quirks) { - struct pdata_init *quirks = pdata_quirks; - - omap_sdrc_init(NULL, NULL); - of_platform_populate(NULL, omap_dt_match_table, - omap_auxdata_lookup, NULL); - while (quirks->compatible) { if (of_machine_is_compatible(quirks->compatible)) { if (quirks->fn) @@ -173,3 +307,12 @@ void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) 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); +} |