| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Scott Wood | 1445 | 95.32% | 1 | 6.67% |
| Grant C. Likely | 22 | 1.45% | 5 | 33.33% |
| Roel Kluin | 21 | 1.39% | 1 | 6.67% |
| Andy Fleming | 8 | 0.53% | 1 | 6.67% |
| Andrey Smirnov | 7 | 0.46% | 1 | 6.67% |
| Uwe Kleine-König | 5 | 0.33% | 1 | 6.67% |
| Tejun Heo | 3 | 0.20% | 1 | 6.67% |
| Thomas Gleixner | 2 | 0.13% | 1 | 6.67% |
| Andrew Lunn | 1 | 0.07% | 1 | 6.67% |
| Benjamin Herrenschmidt | 1 | 0.07% | 1 | 6.67% |
| Lennert Buytenhek | 1 | 0.07% | 1 | 6.67% |
| Total | 1516 | 15 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Embedded Planet EP8248E support * * Copyright 2007 Freescale Semiconductor, Inc. * Author: Scott Wood <scottwood@freescale.com> */ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/fsl_devices.h> #include <linux/mdio-bitbang.h> #include <linux/of_mdio.h> #include <linux/slab.h> #include <linux/of_platform.h> #include <asm/io.h> #include <asm/cpm2.h> #include <asm/udbg.h> #include <asm/machdep.h> #include <asm/time.h> #include <asm/mpc8260.h> #include <asm/prom.h> #include <sysdev/fsl_soc.h> #include <sysdev/cpm2_pic.h> #include "pq2.h" static u8 __iomem *ep8248e_bcsr; static struct device_node *ep8248e_bcsr_node; #define BCSR7_SCC2_ENABLE 0x10 #define BCSR8_PHY1_ENABLE 0x80 #define BCSR8_PHY1_POWER 0x40 #define BCSR8_PHY2_ENABLE 0x20 #define BCSR8_PHY2_POWER 0x10 #define BCSR8_MDIO_READ 0x04 #define BCSR8_MDIO_CLOCK 0x02 #define BCSR8_MDIO_DATA 0x01 #define BCSR9_USB_ENABLE 0x80 #define BCSR9_USB_POWER 0x40 #define BCSR9_USB_HOST 0x20 #define BCSR9_USB_FULL_SPEED_TARGET 0x10 static void __init ep8248e_pic_init(void) { struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic"); if (!np) { printk(KERN_ERR "PIC init: can not find cpm-pic node\n"); return; } cpm2_pic_init(np); of_node_put(np); } static void ep8248e_set_mdc(struct mdiobb_ctrl *ctrl, int level) { if (level) setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK); else clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK); /* Read back to flush the write. */ in_8(&ep8248e_bcsr[8]); } static void ep8248e_set_mdio_dir(struct mdiobb_ctrl *ctrl, int output) { if (output) clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ); else setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ); /* Read back to flush the write. */ in_8(&ep8248e_bcsr[8]); } static void ep8248e_set_mdio_data(struct mdiobb_ctrl *ctrl, int data) { if (data) setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA); else clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA); /* Read back to flush the write. */ in_8(&ep8248e_bcsr[8]); } static int ep8248e_get_mdio_data(struct mdiobb_ctrl *ctrl) { return in_8(&ep8248e_bcsr[8]) & BCSR8_MDIO_DATA; } static const struct mdiobb_ops ep8248e_mdio_ops = { .set_mdc = ep8248e_set_mdc, .set_mdio_dir = ep8248e_set_mdio_dir, .set_mdio_data = ep8248e_set_mdio_data, .get_mdio_data = ep8248e_get_mdio_data, .owner = THIS_MODULE, }; static struct mdiobb_ctrl ep8248e_mdio_ctrl = { .ops = &ep8248e_mdio_ops, }; static int ep8248e_mdio_probe(struct platform_device *ofdev) { struct mii_bus *bus; struct resource res; struct device_node *node; int ret; node = of_get_parent(ofdev->dev.of_node); of_node_put(node); if (node != ep8248e_bcsr_node) return -ENODEV; ret = of_address_to_resource(ofdev->dev.of_node, 0, &res); if (ret) return ret; bus = alloc_mdio_bitbang(&ep8248e_mdio_ctrl); if (!bus) return -ENOMEM; bus->name = "ep8248e-mdio-bitbang"; bus->parent = &ofdev->dev; snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start); ret = of_mdiobus_register(bus, ofdev->dev.of_node); if (ret) goto err_free_bus; return 0; err_free_bus: free_mdio_bitbang(bus); return ret; } static int ep8248e_mdio_remove(struct platform_device *ofdev) { BUG(); return 0; } static const struct of_device_id ep8248e_mdio_match[] = { { .compatible = "fsl,ep8248e-mdio-bitbang", }, {}, }; static struct platform_driver ep8248e_mdio_driver = { .driver = { .name = "ep8248e-mdio-bitbang", .of_match_table = ep8248e_mdio_match, }, .probe = ep8248e_mdio_probe, .remove = ep8248e_mdio_remove, }; struct cpm_pin { int port, pin, flags; }; static __initdata struct cpm_pin ep8248e_pins[] = { /* SMC1 */ {2, 4, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* SCC1 */ {2, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, {3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* FCC1 */ {0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, {0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, {0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, {0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, {0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, {0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, {2, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* FCC2 */ {1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, {1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* I2C */ {4, 14, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, {4, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* USB */ {2, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {2, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {2, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, {3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, {3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, }; static void __init init_ioports(void) { int i; for (i = 0; i < ARRAY_SIZE(ep8248e_pins); i++) { const struct cpm_pin *pin = &ep8248e_pins[i]; cpm2_set_pin(pin->port, pin->pin, pin->flags); } cpm2_smc_clk_setup(CPM_CLK_SMC1, CPM_BRG7); cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX); cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX); cpm2_clk_setup(CPM_CLK_SCC3, CPM_CLK8, CPM_CLK_TX); /* USB */ cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK11, CPM_CLK_RX); cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX); cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX); cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX); } static void __init ep8248e_setup_arch(void) { if (ppc_md.progress) ppc_md.progress("ep8248e_setup_arch()", 0); cpm2_reset(); /* When this is set, snooping CPM DMA from RAM causes * machine checks. See erratum SIU18. */ clrbits32(&cpm2_immr->im_siu_conf.siu_82xx.sc_bcr, MPC82XX_BCR_PLDP); ep8248e_bcsr_node = of_find_compatible_node(NULL, NULL, "fsl,ep8248e-bcsr"); if (!ep8248e_bcsr_node) { printk(KERN_ERR "No bcsr in device tree\n"); return; } ep8248e_bcsr = of_iomap(ep8248e_bcsr_node, 0); if (!ep8248e_bcsr) { printk(KERN_ERR "Cannot map BCSR registers\n"); of_node_put(ep8248e_bcsr_node); ep8248e_bcsr_node = NULL; return; } setbits8(&ep8248e_bcsr[7], BCSR7_SCC2_ENABLE); setbits8(&ep8248e_bcsr[8], BCSR8_PHY1_ENABLE | BCSR8_PHY1_POWER | BCSR8_PHY2_ENABLE | BCSR8_PHY2_POWER); init_ioports(); if (ppc_md.progress) ppc_md.progress("ep8248e_setup_arch(), finish", 0); } static const struct of_device_id of_bus_ids[] __initconst = { { .compatible = "simple-bus", }, { .compatible = "fsl,ep8248e-bcsr", }, {}, }; static int __init declare_of_platform_devices(void) { of_platform_bus_probe(NULL, of_bus_ids, NULL); if (IS_ENABLED(CONFIG_MDIO_BITBANG)) platform_driver_register(&ep8248e_mdio_driver); return 0; } machine_device_initcall(ep8248e, declare_of_platform_devices); /* * Called very early, device-tree isn't unflattened */ static int __init ep8248e_probe(void) { return of_machine_is_compatible("fsl,ep8248e"); } define_machine(ep8248e) { .name = "Embedded Planet EP8248E", .probe = ep8248e_probe, .setup_arch = ep8248e_setup_arch, .init_IRQ = ep8248e_pic_init, .get_irq = cpm2_get_irq, .calibrate_decr = generic_calibrate_decr, .restart = pq2_restart, .progress = udbg_progress, };
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