diff options
Diffstat (limited to 'arch/powerpc/sysdev/mv64x60_dev.c')
| -rw-r--r-- | arch/powerpc/sysdev/mv64x60_dev.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c new file mode 100644 index 00000000000..4b0a9c88eeb --- /dev/null +++ b/arch/powerpc/sysdev/mv64x60_dev.c @@ -0,0 +1,422 @@ +/* + * Platform device setup for Marvell mv64360/mv64460 host bridges (Discovery) + * + * Author: Dale Farnsworth <dale@farnsworth.org> + * + * 2007 (c) MontaVista, Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mv643xx.h> +#include <linux/platform_device.h> + +#include <asm/prom.h> + +/* + * These functions provide the necessary setup for the mv64x60 drivers. + * These drivers are unusual in that they work on both the MIPS and PowerPC + * architectures. Because of that, the drivers do not support the normal + * PowerPC of_platform_bus_type. They support platform_bus_type instead. + */ + +/* + * Create MPSC platform devices + */ +static int __init mv64x60_mpsc_register_shared_pdev(struct device_node *np) +{ + struct platform_device *pdev; + struct resource r[2]; + struct mpsc_shared_pdata pdata; + const phandle *ph; + struct device_node *mpscrouting, *mpscintr; + int err; + + ph = of_get_property(np, "mpscrouting", NULL); + mpscrouting = of_find_node_by_phandle(*ph); + if (!mpscrouting) + return -ENODEV; + + err = of_address_to_resource(mpscrouting, 0, &r[0]); + of_node_put(mpscrouting); + if (err) + return err; + + ph = of_get_property(np, "mpscintr", NULL); + mpscintr = of_find_node_by_phandle(*ph); + if (!mpscintr) + return -ENODEV; + + err = of_address_to_resource(mpscintr, 0, &r[1]); + of_node_put(mpscintr); + if (err) + return err; + + memset(&pdata, 0, sizeof(pdata)); + + pdev = platform_device_alloc(MPSC_SHARED_NAME, 0); + if (!pdev) + return -ENOMEM; + + err = platform_device_add_resources(pdev, r, 2); + if (err) + goto error; + + err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); + if (err) + goto error; + + err = platform_device_add(pdev); + if (err) + goto error; + + return 0; + +error: + platform_device_put(pdev); + return err; +} + + +static int __init mv64x60_mpsc_device_setup(struct device_node *np, int id) +{ + struct resource r[5]; + struct mpsc_pdata pdata; + struct platform_device *pdev; + const unsigned int *prop; + const phandle *ph; + struct device_node *sdma, *brg; + int err; + int port_number; + + /* only register the shared platform device the first time through */ + if (id == 0 && (err = mv64x60_mpsc_register_shared_pdev(np))) + return err; + + memset(r, 0, sizeof(r)); + + err = of_address_to_resource(np, 0, &r[0]); + if (err) + return err; + + of_irq_to_resource(np, 0, &r[4]); + + ph = of_get_property(np, "sdma", NULL); + sdma = of_find_node_by_phandle(*ph); + if (!sdma) + return -ENODEV; + + of_irq_to_resource(sdma, 0, &r[3]); + err = of_address_to_resource(sdma, 0, &r[1]); + of_node_put(sdma); + if (err) + return err; + + ph = of_get_property(np, "brg", NULL); + brg = of_find_node_by_phandle(*ph); + if (!brg) + return -ENODEV; + + err = of_address_to_resource(brg, 0, &r[2]); + of_node_put(brg); + if (err) + return err; + + prop = of_get_property(np, "block-index", NULL); + if (!prop) + return -ENODEV; + port_number = *(int *)prop; + + memset(&pdata, 0, sizeof(pdata)); + + pdata.cache_mgmt = 1; /* All current revs need this set */ + + prop = of_get_property(np, "max_idle", NULL); + if (prop) + pdata.max_idle = *prop; + + prop = of_get_property(brg, "current-speed", NULL); + if (prop) + pdata.default_baud = *prop; + + /* Default is 8 bits, no parity, no flow control */ + pdata.default_bits = 8; + pdata.default_parity = 'n'; + pdata.default_flow = 'n'; + + prop = of_get_property(np, "chr_1", NULL); + if (prop) + pdata.chr_1_val = *prop; + + prop = of_get_property(np, "chr_2", NULL); + if (prop) + pdata.chr_2_val = *prop; + + prop = of_get_property(np, "chr_10", NULL); + if (prop) + pdata.chr_10_val = *prop; + + prop = of_get_property(np, "mpcr", NULL); + if (prop) + pdata.mpcr_val = *prop; + + prop = of_get_property(brg, "bcr", NULL); + if (prop) + pdata.bcr_val = *prop; + + pdata.brg_can_tune = 1; /* All current revs need this set */ + + prop = of_get_property(brg, "clock-src", NULL); + if (prop) + pdata.brg_clk_src = *prop; + + prop = of_get_property(brg, "clock-frequency", NULL); + if (prop) + pdata.brg_clk_freq = *prop; + + pdev = platform_device_alloc(MPSC_CTLR_NAME, port_number); + if (!pdev) + return -ENOMEM; + + err = platform_device_add_resources(pdev, r, 5); + if (err) + goto error; + + err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); + if (err) + goto error; + + err = platform_device_add(pdev); + if (err) + goto error; + + return 0; + +error: + platform_device_put(pdev); + return err; +} + +/* + * Create mv64x60_eth platform devices + */ +static int __init eth_register_shared_pdev(struct device_node *np) +{ + struct platform_device *pdev; + struct resource r[1]; + int err; + + np = of_get_parent(np); + if (!np) + return -ENODEV; + + err = of_address_to_resource(np, 0, &r[0]); + of_node_put(np); + if (err) + return err; + + pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, 0, + r, 1); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +static int __init mv64x60_eth_device_setup(struct device_node *np, int id) +{ + struct resource r[1]; + struct mv643xx_eth_platform_data pdata; + struct platform_device *pdev; + struct device_node *phy; + const u8 *mac_addr; + const int *prop; + const phandle *ph; + int err; + + /* only register the shared platform device the first time through */ + if (id == 0 && (err = eth_register_shared_pdev(np))) + return err;; + + memset(r, 0, sizeof(r)); + of_irq_to_resource(np, 0, &r[0]); + + memset(&pdata, 0, sizeof(pdata)); + + prop = of_get_property(np, "block-index", NULL); + if (!prop) + return -ENODEV; + pdata.port_number = *prop; + + mac_addr = of_get_mac_address(np); + if (mac_addr) + memcpy(pdata.mac_addr, mac_addr, 6); + + prop = of_get_property(np, "speed", NULL); + if (prop) + pdata.speed = *prop; + + prop = of_get_property(np, "tx_queue_size", NULL); + if (prop) + pdata.tx_queue_size = *prop; + + prop = of_get_property(np, "rx_queue_size", NULL); + if (prop) + pdata.rx_queue_size = *prop; + + prop = of_get_property(np, "tx_sram_addr", NULL); + if (prop) + pdata.tx_sram_addr = *prop; + + prop = of_get_property(np, "tx_sram_size", NULL); + if (prop) + pdata.tx_sram_size = *prop; + + prop = of_get_property(np, "rx_sram_addr", NULL); + if (prop) + pdata.rx_sram_addr = *prop; + + prop = of_get_property(np, "rx_sram_size", NULL); + if (prop) + pdata.rx_sram_size = *prop; + + ph = of_get_property(np, "phy", NULL); + if (!ph) + return -ENODEV; + + phy = of_find_node_by_phandle(*ph); + if (phy == NULL) + return -ENODEV; + + prop = of_get_property(phy, "reg", NULL); + if (prop) { + pdata.force_phy_addr = 1; + pdata.phy_addr = *prop; + } + + of_node_put(phy); + + pdev = platform_device_alloc(MV643XX_ETH_NAME, pdata.port_number); + if (!pdev) + return -ENOMEM; + + err = platform_device_add_resources(pdev, r, 1); + if (err) + goto error; + + err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); + if (err) + goto error; + + err = platform_device_add(pdev); + if (err) + goto error; + + return 0; + +error: + platform_device_put(pdev); + return err; +} + +/* + * Create mv64x60_i2c platform devices + */ +static int __init mv64x60_i2c_device_setup(struct device_node *np, int id) +{ + struct resource r[2]; + struct platform_device *pdev; + struct mv64xxx_i2c_pdata pdata; + const unsigned int *prop; + int err; + + memset(r, 0, sizeof(r)); + + err = of_address_to_resource(np, 0, &r[0]); + if (err) + return err; + + of_irq_to_resource(np, 0, &r[1]); + + memset(&pdata, 0, sizeof(pdata)); + + prop = of_get_property(np, "freq_m", NULL); + if (!prop) + return -ENODEV; + pdata.freq_m = *prop; + + prop = of_get_property(np, "freq_n", NULL); + if (!prop) + return -ENODEV; + pdata.freq_n = *prop; + + prop = of_get_property(np, "timeout", NULL); + if (prop) + pdata.timeout = *prop; + else + pdata.timeout = 1000; /* 1 second */ + + prop = of_get_property(np, "retries", NULL); + if (prop) + pdata.retries = *prop; + else + pdata.retries = 1; + + pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id); + if (!pdev) + return -ENOMEM; + + err = platform_device_add_resources(pdev, r, 2); + if (err) + goto error; + + err = platform_device_add_data(pdev, &pdata, sizeof(pdata)); + if (err) + goto error; + + err = platform_device_add(pdev); + if (err) + goto error; + + return 0; + +error: + platform_device_put(pdev); + return err; +} + +static int __init mv64x60_device_setup(void) +{ + struct device_node *np = NULL; + int id; + int err; + + for (id = 0; + (np = of_find_compatible_node(np, "serial", "marvell,mpsc")); id++) + if ((err = mv64x60_mpsc_device_setup(np, id))) + goto error; + + for (id = 0; + (np = of_find_compatible_node(np, "network", + "marvell,mv64x60-eth")); + id++) + if ((err = mv64x60_eth_device_setup(np, id))) + goto error; + + for (id = 0; + (np = of_find_compatible_node(np, "i2c", "marvell,mv64x60-i2c")); + id++) + if ((err = mv64x60_i2c_device_setup(np, id))) + goto error; + + return 0; + +error: + of_node_put(np); + return err; +} +arch_initcall(mv64x60_device_setup); |