mirror of
https://github.com/torvalds/linux.git
synced 2024-11-06 20:21:57 +00:00
0f0cfc6954
This adds support for CompuLab SBC-T3530, also known as cm-t3730: http://compulab.co.il/products/sbcs/sbc-t3530/ It seems that with the sbc-3xxx mainboard is also used on SBC-T3517 and SBC-T3730 with just a different CPU module: http://compulab.co.il/products/sbcs/sbc-t3517/ http://compulab.co.il/products/sbcs/sbc-t3730/ So let's add a common omap3-sb-t35.dtsi and then separate SoC specific omap3-sbc-t3730.dts, omap3-sbc-t3530.dts and omap3-sbc-t3517.dts. I've tested this with SBC-T3730 as that's the only one I have. At least serial, both Ethernet controllers, MMC, and wl12xx WLAN work. Note that WLAN seems to be different for SBC-T3530. And SBC-T3517 may need some changes for the EMAC Ethernet if that's used instead of the smsc911x. Cc: devicetree@vger.kernel.org Cc: Mike Rapoport <mike@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
300 lines
7.4 KiB
C
300 lines
7.4 KiB
C
/*
|
|
* 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/davinci_emac.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 "am35xx.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);
|
|
};
|
|
|
|
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
|
|
*/
|
|
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_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)
|
|
{
|
|
u32 reg;
|
|
|
|
reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
|
|
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
|
|
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();
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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 */
|
|
}
|
|
#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;
|
|
}
|
|
|
|
/*
|
|
* 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", 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),
|
|
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
|
|
{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_legacy_init, },
|
|
{ "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, },
|
|
{ "ti,am3517-evm", am3517_evm_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);
|
|
}
|