| /* |
| * Platform setup for the Freescale mpc885ads board |
| * |
| * Vitaly Bordug <vbordug@ru.mvista.com> |
| * |
| * Copyright 2005 MontaVista Software Inc. |
| * |
| * Heavily modified by Scott Wood <scottwood@freescale.com> |
| * Copyright 2007 Freescale Semiconductor, 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/init.h> |
| #include <linux/module.h> |
| #include <linux/param.h> |
| #include <linux/string.h> |
| #include <linux/ioport.h> |
| #include <linux/device.h> |
| #include <linux/delay.h> |
| |
| #include <linux/fs_enet_pd.h> |
| #include <linux/fs_uart_pd.h> |
| #include <linux/fsl_devices.h> |
| #include <linux/mii.h> |
| #include <linux/of_platform.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/mpc8xx.h> |
| #include <asm/8xx_immap.h> |
| #include <asm/commproc.h> |
| #include <asm/fs_pd.h> |
| #include <asm/udbg.h> |
| |
| #include "mpc8xx.h" |
| |
| static u32 __iomem *bcsr, *bcsr5; |
| |
| #ifdef CONFIG_PCMCIA_M8XX |
| static void pcmcia_hw_setup(int slot, int enable) |
| { |
| if (enable) |
| clrbits32(&bcsr[1], BCSR1_PCCEN); |
| else |
| setbits32(&bcsr[1], BCSR1_PCCEN); |
| } |
| |
| static int pcmcia_set_voltage(int slot, int vcc, int vpp) |
| { |
| u32 reg = 0; |
| |
| switch (vcc) { |
| case 0: |
| break; |
| case 33: |
| reg |= BCSR1_PCCVCC0; |
| break; |
| case 50: |
| reg |= BCSR1_PCCVCC1; |
| break; |
| default: |
| return 1; |
| } |
| |
| switch (vpp) { |
| case 0: |
| break; |
| case 33: |
| case 50: |
| if (vcc == vpp) |
| reg |= BCSR1_PCCVPP1; |
| else |
| return 1; |
| break; |
| case 120: |
| if ((vcc == 33) || (vcc == 50)) |
| reg |= BCSR1_PCCVPP0; |
| else |
| return 1; |
| default: |
| return 1; |
| } |
| |
| /* first, turn off all power */ |
| clrbits32(&bcsr[1], 0x00610000); |
| |
| /* enable new powersettings */ |
| setbits32(&bcsr[1], reg); |
| |
| return 0; |
| } |
| #endif |
| |
| struct cpm_pin { |
| int port, pin, flags; |
| }; |
| |
| static struct cpm_pin mpc885ads_pins[] = { |
| /* SMC1 */ |
| {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ |
| {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ |
| |
| /* SMC2 */ |
| #ifndef CONFIG_MPC8xx_SECOND_ETH_FEC2 |
| {CPM_PORTE, 21, CPM_PIN_INPUT}, /* RX */ |
| {CPM_PORTE, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ |
| #endif |
| |
| /* SCC3 */ |
| {CPM_PORTA, 9, CPM_PIN_INPUT}, /* RX */ |
| {CPM_PORTA, 8, CPM_PIN_INPUT}, /* TX */ |
| {CPM_PORTC, 4, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */ |
| {CPM_PORTC, 5, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */ |
| {CPM_PORTE, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */ |
| {CPM_PORTE, 17, CPM_PIN_INPUT}, /* CLK5 */ |
| {CPM_PORTE, 16, CPM_PIN_INPUT}, /* CLK6 */ |
| |
| /* MII1 */ |
| {CPM_PORTA, 0, CPM_PIN_INPUT}, |
| {CPM_PORTA, 1, CPM_PIN_INPUT}, |
| {CPM_PORTA, 2, CPM_PIN_INPUT}, |
| {CPM_PORTA, 3, CPM_PIN_INPUT}, |
| {CPM_PORTA, 4, CPM_PIN_OUTPUT}, |
| {CPM_PORTA, 10, CPM_PIN_OUTPUT}, |
| {CPM_PORTA, 11, CPM_PIN_OUTPUT}, |
| {CPM_PORTB, 19, CPM_PIN_INPUT}, |
| {CPM_PORTB, 31, CPM_PIN_INPUT}, |
| {CPM_PORTC, 12, CPM_PIN_INPUT}, |
| {CPM_PORTC, 13, CPM_PIN_INPUT}, |
| {CPM_PORTE, 30, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 31, CPM_PIN_OUTPUT}, |
| |
| /* MII2 */ |
| #ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 |
| {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 16, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, |
| {CPM_PORTE, 21, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 22, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 23, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 24, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 25, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 26, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 27, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 28, CPM_PIN_OUTPUT}, |
| {CPM_PORTE, 29, CPM_PIN_OUTPUT}, |
| #endif |
| }; |
| |
| static void __init init_ioports(void) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mpc885ads_pins); i++) { |
| struct cpm_pin *pin = &mpc885ads_pins[i]; |
| cpm1_set_pin(pin->port, pin->pin, pin->flags); |
| } |
| |
| cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); |
| cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX); |
| cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_TX); |
| cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK6, CPM_CLK_RX); |
| |
| /* Set FEC1 and FEC2 to MII mode */ |
| clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); |
| } |
| |
| static void __init mpc885ads_setup_arch(void) |
| { |
| struct device_node *np; |
| |
| cpm_reset(); |
| init_ioports(); |
| |
| np = of_find_compatible_node(NULL, NULL, "fsl,mpc885ads-bcsr"); |
| if (!np) { |
| printk(KERN_CRIT "Could not find fsl,mpc885ads-bcsr node\n"); |
| return; |
| } |
| |
| bcsr = of_iomap(np, 0); |
| bcsr5 = of_iomap(np, 1); |
| of_node_put(np); |
| |
| if (!bcsr || !bcsr5) { |
| printk(KERN_CRIT "Could not remap BCSR\n"); |
| return; |
| } |
| |
| clrbits32(&bcsr[1], BCSR1_RS232EN_1); |
| #ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 |
| setbits32(&bcsr[1], BCSR1_RS232EN_2); |
| #else |
| clrbits32(&bcsr[1], BCSR1_RS232EN_2); |
| #endif |
| |
| clrbits32(bcsr5, BCSR5_MII1_EN); |
| setbits32(bcsr5, BCSR5_MII1_RST); |
| udelay(1000); |
| clrbits32(bcsr5, BCSR5_MII1_RST); |
| |
| #ifdef CONFIG_MPC8xx_SECOND_ETH_FEC2 |
| clrbits32(bcsr5, BCSR5_MII2_EN); |
| setbits32(bcsr5, BCSR5_MII2_RST); |
| udelay(1000); |
| clrbits32(bcsr5, BCSR5_MII2_RST); |
| #else |
| setbits32(bcsr5, BCSR5_MII2_EN); |
| #endif |
| |
| #ifdef CONFIG_MPC8xx_SECOND_ETH_SCC3 |
| clrbits32(&bcsr[4], BCSR4_ETH10_RST); |
| udelay(1000); |
| setbits32(&bcsr[4], BCSR4_ETH10_RST); |
| |
| setbits32(&bcsr[1], BCSR1_ETHEN); |
| |
| np = of_find_node_by_path("/soc@ff000000/cpm@9c0/serial@a80"); |
| #else |
| np = of_find_node_by_path("/soc@ff000000/cpm@9c0/ethernet@a40"); |
| #endif |
| |
| /* The SCC3 enet registers overlap the SMC1 registers, so |
| * one of the two must be removed from the device tree. |
| */ |
| |
| if (np) { |
| of_detach_node(np); |
| of_node_put(np); |
| } |
| |
| #ifdef CONFIG_PCMCIA_M8XX |
| /* Set up board specific hook-ups.*/ |
| m8xx_pcmcia_ops.hw_ctrl = pcmcia_hw_setup; |
| m8xx_pcmcia_ops.voltage_set = pcmcia_set_voltage; |
| #endif |
| } |
| |
| static int __init mpc885ads_probe(void) |
| { |
| unsigned long root = of_get_flat_dt_root(); |
| return of_flat_dt_is_compatible(root, "fsl,mpc885ads"); |
| } |
| |
| static struct of_device_id __initdata of_bus_ids[] = { |
| { .name = "soc", }, |
| { .name = "cpm", }, |
| { .name = "localbus", }, |
| {}, |
| }; |
| |
| static int __init declare_of_platform_devices(void) |
| { |
| /* Publish the QE devices */ |
| of_platform_bus_probe(NULL, of_bus_ids, NULL); |
| |
| return 0; |
| } |
| machine_device_initcall(mpc885_ads, declare_of_platform_devices); |
| |
| define_machine(mpc885_ads) { |
| .name = "Freescale MPC885 ADS", |
| .probe = mpc885ads_probe, |
| .setup_arch = mpc885ads_setup_arch, |
| .init_IRQ = mpc8xx_pics_init, |
| .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, |
| .progress = udbg_progress, |
| }; |