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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-davinci/usb-da8xx.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-davinci/usb-da8xx.c')
-rw-r--r--arch/arm/mach-davinci/usb-da8xx.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/usb-da8xx.c b/arch/arm/mach-davinci/usb-da8xx.c
new file mode 100644
index 000000000..9c8fc5031
--- /dev/null
+++ b/arch/arm/mach-davinci/usb-da8xx.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DA8xx USB
+ */
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/mfd/da8xx-cfgchip.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_data/clk-da8xx-cfgchip.h>
+#include <linux/platform_data/phy-da8xx-usb.h>
+#include <linux/platform_data/usb-davinci.h>
+#include <linux/platform_device.h>
+#include <linux/usb/musb.h>
+
+#include "common.h"
+#include "cputype.h"
+#include "da8xx.h"
+#include "irqs.h"
+
+#define DA8XX_USB0_BASE 0x01e00000
+#define DA8XX_USB1_BASE 0x01e25000
+
+#ifndef CONFIG_COMMON_CLK
+static struct clk *usb20_clk;
+#endif
+
+static struct da8xx_usb_phy_platform_data da8xx_usb_phy_pdata;
+
+static struct platform_device da8xx_usb_phy = {
+ .name = "da8xx-usb-phy",
+ .id = -1,
+ .dev = {
+ /*
+ * Setting init_name so that clock lookup will work in
+ * da8xx_register_usb11_phy_clk() even if this device is not
+ * registered yet.
+ */
+ .init_name = "da8xx-usb-phy",
+ .platform_data = &da8xx_usb_phy_pdata,
+ },
+};
+
+int __init da8xx_register_usb_phy(void)
+{
+ da8xx_usb_phy_pdata.cfgchip = da8xx_get_cfgchip();
+
+ return platform_device_register(&da8xx_usb_phy);
+}
+
+static struct musb_hdrc_config musb_config = {
+ .multipoint = true,
+ .num_eps = 5,
+ .ram_bits = 10,
+};
+
+static struct musb_hdrc_platform_data usb_data = {
+ /* OTG requires a Mini-AB connector */
+ .mode = MUSB_OTG,
+ .clock = "usb20",
+ .config = &musb_config,
+};
+
+static struct resource da8xx_usb20_resources[] = {
+ {
+ .start = DA8XX_USB0_BASE,
+ .end = DA8XX_USB0_BASE + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = DAVINCI_INTC_IRQ(IRQ_DA8XX_USB_INT),
+ .flags = IORESOURCE_IRQ,
+ .name = "mc",
+ },
+};
+
+static u64 usb_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device da8xx_usb20_dev = {
+ .name = "musb-da8xx",
+ .id = -1,
+ .dev = {
+ .platform_data = &usb_data,
+ .dma_mask = &usb_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = da8xx_usb20_resources,
+ .num_resources = ARRAY_SIZE(da8xx_usb20_resources),
+};
+
+int __init da8xx_register_usb20(unsigned int mA, unsigned int potpgt)
+{
+ usb_data.power = mA > 510 ? 255 : mA / 2;
+ usb_data.potpgt = (potpgt + 1) / 2;
+
+ return platform_device_register(&da8xx_usb20_dev);
+}
+
+static struct resource da8xx_usb11_resources[] = {
+ [0] = {
+ .start = DA8XX_USB1_BASE,
+ .end = DA8XX_USB1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
+ .end = DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device da8xx_usb11_device = {
+ .name = "ohci-da8xx",
+ .id = -1,
+ .dev = {
+ .dma_mask = &da8xx_usb11_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .num_resources = ARRAY_SIZE(da8xx_usb11_resources),
+ .resource = da8xx_usb11_resources,
+};
+
+int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
+{
+ da8xx_usb11_device.dev.platform_data = pdata;
+ return platform_device_register(&da8xx_usb11_device);
+}
+
+static struct platform_device da8xx_usb_phy_clks_device = {
+ .name = "da830-usb-phy-clks",
+ .id = -1,
+};
+
+int __init da8xx_register_usb_phy_clocks(void)
+{
+ struct da8xx_cfgchip_clk_platform_data pdata;
+
+ pdata.cfgchip = da8xx_get_cfgchip();
+ da8xx_usb_phy_clks_device.dev.platform_data = &pdata;
+
+ return platform_device_register(&da8xx_usb_phy_clks_device);
+}