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Diffstat (limited to 'arch/mips/alchemy/devboards/db1000.c')
-rw-r--r--arch/mips/alchemy/devboards/db1000.c164
1 files changed, 62 insertions, 102 deletions
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 433c4b9a9f0a..6984cd5169b5 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -1,37 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* DBAu1000/1500/1100 PBAu1100/1500 board support
*
* Copyright 2000, 2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
-#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
-#include <linux/spi/ads7846.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
@@ -81,6 +69,8 @@ static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
return -1;
}
+static u64 au1xxx_all_dmamask = DMA_BIT_MASK(32);
+
static struct resource alchemy_pci_host_res[] = {
[0] = {
.start = AU1500_PCI_PHYS_ADDR,
@@ -119,13 +109,11 @@ static struct resource au1100_lcd_resources[] = {
}
};
-static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
-
static struct platform_device au1100_lcd_device = {
.name = "au1100-lcd",
.id = 0,
.dev = {
- .dma_mask = &au1100_lcd_dmamask,
+ .dma_mask = &au1xxx_all_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(au1100_lcd_resources),
@@ -169,18 +157,18 @@ static struct platform_device db1x00_codec_dev = {
static struct platform_device db1x00_audio_dev = {
.name = "db1000-audio",
+ .dev = {
+ .dma_mask = &au1xxx_all_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
};
/******************************************************************************/
+#ifdef CONFIG_MMC_AU1X
static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
{
- void (*mmc_cd)(struct mmc_host *, unsigned long);
- /* link against CONFIG_MMC=m */
- mmc_cd = symbol_get(mmc_detect_change);
- mmc_cd(ptr, msecs_to_jiffies(500));
- symbol_put(mmc_detect_change);
-
+ mmc_detect_change(ptr, msecs_to_jiffies(500));
return IRQ_HANDLED;
}
@@ -337,13 +325,11 @@ static struct resource au1100_mmc0_resources[] = {
}
};
-static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32);
-
static struct platform_device db1100_mmc0_dev = {
.name = "au1xxx-mmc",
.id = 0,
.dev = {
- .dma_mask = &au1xxx_mmc_dmamask,
+ .dma_mask = &au1xxx_all_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &db1100_mmc_platdata[0],
},
@@ -378,79 +364,31 @@ static struct platform_device db1100_mmc1_dev = {
.name = "au1xxx-mmc",
.id = 1,
.dev = {
- .dma_mask = &au1xxx_mmc_dmamask,
+ .dma_mask = &au1xxx_all_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &db1100_mmc_platdata[1],
},
.num_resources = ARRAY_SIZE(au1100_mmc1_res),
.resource = au1100_mmc1_res,
};
+#endif /* CONFIG_MMC_AU1X */
/******************************************************************************/
-static void db1000_irda_set_phy_mode(int mode)
-{
- unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL;
-
- switch (mode) {
- case AU1000_IRDA_PHY_MODE_OFF:
- bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF);
- break;
- case AU1000_IRDA_PHY_MODE_SIR:
- bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL);
- break;
- case AU1000_IRDA_PHY_MODE_FIR:
- bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL |
- BCSR_RESETS_FIR_SEL);
- break;
- }
-}
-
-static struct au1k_irda_platform_data db1000_irda_platdata = {
- .set_phy_mode = db1000_irda_set_phy_mode,
+static const struct software_node db1100_alchemy2_gpiochip = {
+ .name = "alchemy-gpio2",
};
-static struct resource au1000_irda_res[] = {
- [0] = {
- .start = AU1000_IRDA_PHYS_ADDR,
- .end = AU1000_IRDA_PHYS_ADDR + 0x0fff,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = AU1000_IRDA_TX_INT,
- .end = AU1000_IRDA_TX_INT,
- .flags = IORESOURCE_IRQ,
- },
- [2] = {
- .start = AU1000_IRDA_RX_INT,
- .end = AU1000_IRDA_RX_INT,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device db1000_irda_dev = {
- .name = "au1000-irda",
- .id = -1,
- .dev = {
- .platform_data = &db1000_irda_platdata,
- },
- .resource = au1000_irda_res,
- .num_resources = ARRAY_SIZE(au1000_irda_res),
+static const struct property_entry db1100_ads7846_properties[] = {
+ PROPERTY_ENTRY_U16("ti,vref_min", 3300),
+ PROPERTY_ENTRY_GPIO("pendown-gpios",
+ &db1100_alchemy2_gpiochip, 21, GPIO_ACTIVE_LOW),
+ { }
};
-/******************************************************************************/
-
-static struct ads7846_platform_data db1100_touch_pd = {
- .model = 7846,
- .vref_mv = 3300,
- .gpio_pendown = 21,
-};
-
-static struct spi_gpio_platform_data db1100_spictl_pd = {
- .sck = 209,
- .mosi = 208,
- .miso = 207,
- .num_chipselect = 1,
+static const struct software_node db1100_ads7846_swnode = {
+ .name = "ads7846",
+ .properties = db1100_ads7846_properties,
};
static struct spi_board_info db1100_spi_info[] __initdata = {
@@ -461,20 +399,39 @@ static struct spi_board_info db1100_spi_info[] __initdata = {
.chip_select = 0,
.mode = 0,
.irq = AU1100_GPIO21_INT,
- .platform_data = &db1100_touch_pd,
- .controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */
+ .swnode = &db1100_ads7846_swnode,
},
};
-static struct platform_device db1100_spi_dev = {
+static const struct spi_gpio_platform_data db1100_spictl_pd __initconst = {
+ .num_chipselect = 1,
+};
+
+/*
+ * Alchemy GPIO 2 has its base at 200 so the GPIO lines
+ * 207 thru 210 are GPIOs at offset 7 thru 10 at this chip.
+ */
+static const struct property_entry db1100_spi_dev_properties[] __initconst = {
+ PROPERTY_ENTRY_GPIO("miso-gpios",
+ &db1100_alchemy2_gpiochip, 7, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("mosi-gpios",
+ &db1100_alchemy2_gpiochip, 8, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("sck-gpios",
+ &db1100_alchemy2_gpiochip, 9, GPIO_ACTIVE_HIGH),
+ PROPERTY_ENTRY_GPIO("cs-gpios",
+ &db1100_alchemy2_gpiochip, 10, GPIO_ACTIVE_HIGH),
+ { }
+};
+
+static const struct platform_device_info db1100_spi_dev_info __initconst = {
.name = "spi_gpio",
.id = 0,
- .dev = {
- .platform_data = &db1100_spictl_pd,
- },
+ .data = &db1100_spictl_pd,
+ .size_data = sizeof(db1100_spictl_pd),
+ .dma_mask = DMA_BIT_MASK(32),
+ .properties = db1100_spi_dev_properties,
};
-
static struct platform_device *db1x00_devs[] = {
&db1x00_codec_dev,
&alchemy_ac97c_dma_dev,
@@ -482,23 +439,22 @@ static struct platform_device *db1x00_devs[] = {
&db1x00_audio_dev,
};
-static struct platform_device *db1000_devs[] = {
- &db1000_irda_dev,
-};
-
static struct platform_device *db1100_devs[] = {
&au1100_lcd_device,
+#ifdef CONFIG_MMC_AU1X
&db1100_mmc0_dev,
&db1100_mmc1_dev,
- &db1000_irda_dev,
+#endif
};
int __init db1000_dev_setup(void)
{
int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
int c0, c1, d0, d1, s0, s1, flashsize = 32, twosocks = 1;
+ int err;
unsigned long pfc;
struct clk *c, *p;
+ struct platform_device *spi_dev;
if (board == BCSR_WHOAMI_DB1500) {
c0 = AU1500_GPIO2_INT;
@@ -525,6 +481,7 @@ int __init db1000_dev_setup(void)
pfc |= (1 << 0); /* SSI0 pins as GPIOs */
alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
+ software_node_register(&db1100_alchemy2_gpiochip);
spi_register_board_info(db1100_spi_info,
ARRAY_SIZE(db1100_spi_info));
@@ -541,7 +498,11 @@ int __init db1000_dev_setup(void)
clk_put(p);
platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
- platform_device_register(&db1100_spi_dev);
+
+ spi_dev = platform_device_register_full(&db1100_spi_dev_info);
+ err = PTR_ERR_OR_ZERO(spi_dev);
+ if (err)
+ pr_err("failed to register SPI controller: %d\n", err);
} else if (board == BCSR_WHOAMI_DB1000) {
c0 = AU1000_GPIO2_INT;
c1 = AU1000_GPIO5_INT;
@@ -549,7 +510,6 @@ int __init db1000_dev_setup(void)
d1 = 3; /* GPIO number, NOT irq! */
s0 = AU1000_GPIO1_INT;
s1 = AU1000_GPIO4_INT;
- platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
} else if ((board == BCSR_WHOAMI_PB1500) ||
(board == BCSR_WHOAMI_PB1500R2)) {
c0 = AU1500_GPIO203_INT;
generated by cgit (git 2.34.1) at 2025-12-26 10:41:39 +0000