diff options
Diffstat (limited to 'arch/ppc/platforms/mpc866ads_setup.c')
| -rw-r--r-- | arch/ppc/platforms/mpc866ads_setup.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c new file mode 100644 index 000000000000..ac8fcc68afeb --- /dev/null +++ b/arch/ppc/platforms/mpc866ads_setup.c @@ -0,0 +1,273 @@ +/*arch/ppc/platforms/mpc885ads-setup.c + * + * Platform setup for the Freescale mpc885ads board + * + * Vitaly Bordug <vbordug@ru.mvista.com> + * + * Copyright 2005 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/config.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/device.h> + +#include <linux/fs_enet_pd.h> +#include <linux/mii.h> + +#include <asm/delay.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/page.h> +#include <asm/processor.h> +#include <asm/system.h> +#include <asm/time.h> +#include <asm/ppcboot.h> +#include <asm/8xx_immap.h> +#include <asm/commproc.h> +#include <asm/ppc_sys.h> +#include <asm/mpc8xx.h> + +extern unsigned char __res[]; + +static struct fs_mii_bus_info fec_mii_bus_info = { + .method = fsmii_fec, + .id = 0, +}; + +static struct fs_mii_bus_info scc_mii_bus_info = { + .method = fsmii_fixed, + .id = 0, + .i.fixed.speed = 10, + .i.fixed.duplex = 0, +}; + +static struct fs_platform_info mpc8xx_fec_pdata[] = { + { + .rx_ring = 128, + .tx_ring = 16, + .rx_copybreak = 240, + + .use_napi = 1, + .napi_weight = 17, + + .phy_addr = 15, + .phy_irq = -1, + + .use_rmii = 0, + + .bus_info = &fec_mii_bus_info, + } +}; + +static struct fs_platform_info mpc8xx_scc_pdata = { + .rx_ring = 64, + .tx_ring = 8, + .rx_copybreak = 240, + + .use_napi = 1, + .napi_weight = 17, + + .phy_addr = -1, + .phy_irq = -1, + + .bus_info = &scc_mii_bus_info, +}; + +void __init board_init(void) +{ + volatile cpm8xx_t *cp = cpmp; + unsigned *bcsr_io; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } +#ifdef CONFIG_SERIAL_CPM_SMC1 + cp->cp_simode &= ~(0xe0000000 >> 17); /* brg1 */ + clrbits32(bcsr_io,(0x80000000 >> 7)); +#else + setbits32(bcsr_io,(0x80000000 >> 7)); + + cp->cp_pbpar &= ~(0x000000c0); + cp->cp_pbdir |= 0x000000c0; + cp->cp_smc[0].smc_smcmr = 0; + cp->cp_smc[0].smc_smce = 0; +#endif + +#ifdef CONFIG_SERIAL_CPM_SMC2 + cp->cp_simode &= ~(0xe0000000 >> 1); + cp->cp_simode |= (0x20000000 >> 1); /* brg2 */ + clrbits32(bcsr_io,(0x80000000 >> 13)); +#else + clrbits32(bcsr_io,(0x80000000 >> 13)); + cp->cp_pbpar &= ~(0x00000c00); + cp->cp_pbdir |= 0x00000c00; + cp->cp_smc[1].smc_smcmr = 0; + cp->cp_smc[1].smc_smce = 0; +#endif + iounmap(bcsr_io); +} + +static void setup_fec1_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + + setbits16(&immap->im_ioport.iop_pdpar, 0x1fff); + setbits16(&immap->im_ioport.iop_pddir, 0x1fff); +} + +static void setup_scc1_ioports(void) +{ + immap_t *immap = (immap_t *) IMAP_ADDR; + unsigned *bcsr_io; + + bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); + + if (bcsr_io == NULL) { + printk(KERN_CRIT "Could not remap BCSR1\n"); + return; + } + + /* Enable the PHY. + */ + clrbits32(bcsr_io,BCSR1_ETHEN); + + /* Configure port A pins for Txd and Rxd. + */ + /* Disable receive and transmit in case EPPC-Bug started it. + */ + setbits16(&immap->im_ioport.iop_papar, PA_ENET_RXD | PA_ENET_TXD); + clrbits16(&immap->im_ioport.iop_padir, PA_ENET_RXD | PA_ENET_TXD); + clrbits16(&immap->im_ioport.iop_paodr, PA_ENET_TXD); + + /* Configure port C pins to enable CLSN and RENA. + */ + clrbits16(&immap->im_ioport.iop_pcpar, PC_ENET_CLSN | PC_ENET_RENA); + clrbits16(&immap->im_ioport.iop_pcdir, PC_ENET_CLSN | PC_ENET_RENA); + setbits16(&immap->im_ioport.iop_pcso, PC_ENET_CLSN | PC_ENET_RENA); + /* Configure port A for TCLK and RCLK. + */ + setbits16(&immap->im_ioport.iop_papar, PA_ENET_TCLK | PA_ENET_RCLK); + clrbits16(&immap->im_ioport.iop_padir, PA_ENET_TCLK | PA_ENET_RCLK); + clrbits32(&immap->im_cpm.cp_pbpar, PB_ENET_TENA); + clrbits32(&immap->im_cpm.cp_pbdir, PB_ENET_TENA); + + /* Configure Serial Interface clock routing. + * First, clear all SCC bits to zero, then set the ones we want. + */ + clrbits32(&immap->im_cpm.cp_sicr, SICR_ENET_MASK); + setbits32(&immap->im_cpm.cp_sicr, SICR_ENET_CLKRT); + + /* In the original SCC enet driver the following code is placed at + the end of the initialization */ + setbits32(&immap->im_cpm.cp_pbpar, PB_ENET_TENA); + setbits32(&immap->im_cpm.cp_pbdir, PB_ENET_TENA); + +} + +static void mpc866ads_fixup_enet_pdata(struct platform_device *pdev, int fs_no) +{ + struct fs_platform_info *fpi = pdev->dev.platform_data; + + volatile cpm8xx_t *cp; + bd_t *bd = (bd_t *) __res; + char *e; + int i; + + /* Get pointer to Communication Processor */ + cp = cpmp; + switch (fs_no) { + case fsid_fec1: + fpi = &mpc8xx_fec_pdata[0]; + fpi->init_ioports = &setup_fec1_ioports; + + break; + case fsid_scc1: + fpi = &mpc8xx_scc_pdata; + fpi->init_ioports = &setup_scc1_ioports; + + break; + default: + printk(KERN_WARNING"Device %s is not supported!\n", pdev->name); + return; + } + + pdev->dev.platform_data = fpi; + fpi->fs_no = fs_no; + + e = (unsigned char *)&bd->bi_enetaddr; + for (i = 0; i < 6; i++) + fpi->macaddr[i] = *e++; + + fpi->macaddr[5 - pdev->id]++; + +} + +static void mpc866ads_fixup_fec_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for FEC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-fec"))) + return; + mpc866ads_fixup_enet_pdata(pdev, fsid_fec1 + pdev->id - 1); +} + +static void mpc866ads_fixup_scc_enet_pdata(struct platform_device *pdev, + int idx) +{ + /* This is for SCC devices only */ + if (!pdev || !pdev->name || (!strstr(pdev->name, "fsl-cpm-scc"))) + return; + + mpc866ads_fixup_enet_pdata(pdev, fsid_scc1 + pdev->id - 1); +} + +static int mpc866ads_platform_notify(struct device *dev) +{ + static const struct platform_notify_dev_map dev_map[] = { + { + .bus_id = "fsl-cpm-fec", + .rtn = mpc866ads_fixup_fec_enet_pdata, + }, + { + .bus_id = "fsl-cpm-scc", + .rtn = mpc866ads_fixup_scc_enet_pdata, + }, + { + .bus_id = NULL + } + }; + + platform_notify_map(dev_map,dev); + + return 0; +} + +int __init mpc866ads_init(void) +{ + printk(KERN_NOTICE "mpc866ads: Init\n"); + + platform_notify = mpc866ads_platform_notify; + + ppc_sys_device_initfunc(); + ppc_sys_device_disable_all(); + +#ifdef MPC8xx_SECOND_ETH_SCC1 + ppc_sys_device_enable(MPC8xx_CPM_SCC1); +#endif + ppc_sys_device_enable(MPC8xx_CPM_FEC1); + + return 0; +} + +arch_initcall(mpc866ads_init); |
