/*arch/powerpc/platforms/8xx/mpc86xads_setup.c * * Platform setup for the Freescale mpc86xads board * * Vitaly Bordug * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern void cpm_reset(void); extern void mpc8xx_show_cpuinfo(struct seq_file*); extern void mpc8xx_restart(char *cmd); extern void mpc8xx_calibrate_decr(void); extern int mpc8xx_set_rtc_time(struct rtc_time *tm); extern void mpc8xx_get_rtc_time(struct rtc_time *tm); extern void m8xx_pic_init(void); extern unsigned int mpc8xx_get_irq(void); static void init_smc1_uart_ioports(struct fs_uart_platform_info* fpi); static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi); static void init_scc1_ioports(struct fs_platform_info* ptr); void __init mpc86xads_board_setup(void) { cpm8xx_t *cp; unsigned int *bcsr_io; u8 tmpval8; bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); cp = (cpm8xx_t *)immr_map(im_cpm); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR\n"); return; } #ifdef CONFIG_SERIAL_CPM_SMC1 clrbits32(bcsr_io, BCSR1_RS232EN_1); clrbits32(&cp->cp_simode, 0xe0000000 >> 17); /* brg1 */ tmpval8 = in_8(&(cp->cp_smc[0].smc_smcm)) | (SMCM_RX | SMCM_TX); out_8(&(cp->cp_smc[0].smc_smcm), tmpval8); clrbits16(&cp->cp_smc[0].smc_smcmr, SMCMR_REN | SMCMR_TEN); #else setbits32(bcsr_io,BCSR1_RS232EN_1); out_be16(&cp->cp_smc[0].smc_smcmr, 0); out_8(&cp->cp_smc[0].smc_smce, 0); #endif #ifdef CONFIG_SERIAL_CPM_SMC2 clrbits32(bcsr_io,BCSR1_RS232EN_2); clrbits32(&cp->cp_simode, 0xe0000000 >> 1); setbits32(&cp->cp_simode, 0x20000000 >> 1); /* brg2 */ tmpval8 = in_8(&(cp->cp_smc[1].smc_smcm)) | (SMCM_RX | SMCM_TX); out_8(&(cp->cp_smc[1].smc_smcm), tmpval8); clrbits16(&cp->cp_smc[1].smc_smcmr, SMCMR_REN | SMCMR_TEN); init_smc2_uart_ioports(0); #else setbits32(bcsr_io,BCSR1_RS232EN_2); out_be16(&cp->cp_smc[1].smc_smcmr, 0); out_8(&cp->cp_smc[1].smc_smce, 0); #endif immr_unmap(cp); iounmap(bcsr_io); } static void init_fec1_ioports(struct fs_platform_info* ptr) { iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport); /* configure FEC1 pins */ setbits16(&io_port->iop_pdpar, 0x1fff); setbits16(&io_port->iop_pddir, 0x1fff); immr_unmap(io_port); } void init_fec_ioports(struct fs_platform_info *fpi) { int fec_no = fs_get_fec_index(fpi->fs_no); switch (fec_no) { case 0: init_fec1_ioports(fpi); break; default: printk(KERN_ERR "init_fec_ioports: invalid FEC number\n"); return; } } static void init_scc1_ioports(struct fs_platform_info* fpi) { unsigned *bcsr_io; iop8xx_t *io_port; cpm8xx_t *cp; bcsr_io = ioremap(BCSR_ADDR, BCSR_SIZE); io_port = (iop8xx_t *)immr_map(im_ioport); cp = (cpm8xx_t *)immr_map(im_cpm); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR\n"); return; } /* Configure port A pins for Txd and Rxd. */ setbits16(&io_port->iop_papar, PA_ENET_RXD | PA_ENET_TXD); clrbits16(&io_port->iop_padir, PA_ENET_RXD | PA_ENET_TXD); clrbits16(&io_port->iop_paodr, PA_ENET_TXD); /* Configure port C pins to enable CLSN and RENA. */ clrbits16(&io_port->iop_pcpar, PC_ENET_CLSN | PC_ENET_RENA); clrbits16(&io_port->iop_pcdir, PC_ENET_CLSN | PC_ENET_RENA); setbits16(&io_port->iop_pcso, PC_ENET_CLSN | PC_ENET_RENA); /* Configure port A for TCLK and RCLK. */ setbits16(&io_port->iop_papar, PA_ENET_TCLK | PA_ENET_RCLK); clrbits16(&io_port->iop_padir, PA_ENET_TCLK | PA_ENET_RCLK); clrbits32(&cp->cp_pbpar, PB_ENET_TENA); clrbits32(&cp->cp_pbdir, PB_ENET_TENA); /* Configure Serial Interface clock routing. * First, clear all SCC bits to zero, then set the ones we want. */ clrbits32(&cp->cp_sicr, SICR_ENET_MASK); setbits32(&cp->cp_sicr, SICR_ENET_CLKRT); /* In the original SCC enet driver the following code is placed at the end of the initialization */ setbits32(&cp->cp_pbpar, PB_ENET_TENA); setbits32(&cp->cp_pbdir, PB_ENET_TENA); clrbits32(bcsr_io+1, BCSR1_ETHEN); iounmap(bcsr_io); immr_unmap(cp); immr_unmap(io_port); } void init_scc_ioports(struct fs_platform_info *fpi) { int scc_no = fs_get_scc_index(fpi->fs_no); switch (scc_no) { case 0: init_scc1_ioports(fpi); break; default: printk(KERN_ERR "init_scc_ioports: invalid SCC number\n"); return; } } static void init_smc1_uart_ioports(struct fs_uart_platform_info* ptr) { unsigned *bcsr_io; cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm); setbits32(&cp->cp_pbpar, 0x000000c0); clrbits32(&cp->cp_pbdir, 0x000000c0); clrbits16(&cp->cp_pbodr, 0x00c0); immr_unmap(cp); bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR1\n"); return; } clrbits32(bcsr_io,BCSR1_RS232EN_1); iounmap(bcsr_io); } static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi) { unsigned *bcsr_io; cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm); setbits32(&cp->cp_pbpar, 0x00000c00); clrbits32(&cp->cp_pbdir, 0x00000c00); clrbits16(&cp->cp_pbodr, 0x0c00); immr_unmap(cp); bcsr_io = ioremap(BCSR1, sizeof(unsigned long)); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR1\n"); return; } clrbits32(bcsr_io,BCSR1_RS232EN_2); iounmap(bcsr_io); } void init_smc_ioports(struct fs_uart_platform_info *data) { int smc_no = fs_uart_id_fsid2smc(data->fs_no); switch (smc_no) { case 0: init_smc1_uart_ioports(data); data->brg = data->clk_rx; break; case 1: init_smc2_uart_ioports(data); data->brg = data->clk_rx; break; default: printk(KERN_ERR "init_scc_ioports: invalid SCC number\n"); return; } } int platform_device_skip(const char *model, int id) { return 0; } static void __init mpc86xads_setup_arch(void) { cpm_reset(); mpc86xads_board_setup(); ROOT_DEV = Root_NFS; } static int __init mpc86xads_probe(void) { char *model = of_get_flat_dt_prop(of_get_flat_dt_root(), "model", NULL); if (model == NULL) return 0; if (strcmp(model, "MPC866ADS")) return 0; return 1; } define_machine(mpc86x_ads) { .name = "MPC86x ADS", .probe = mpc86xads_probe, .setup_arch = mpc86xads_setup_arch, .init_IRQ = m8xx_pic_init, .show_cpuinfo = mpc8xx_show_cpuinfo, .get_irq = mpc8xx_get_irq, .restart = mpc8xx_restart, .calibrate_decr = mpc8xx_calibrate_decr, .set_rtc_time = mpc8xx_set_rtc_time, .get_rtc_time = mpc8xx_get_rtc_time, };