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author | Holger Brunck <holger.brunck@keymile.com> | 2011-03-11 07:02:44 (GMT) |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2011-03-15 15:06:37 (GMT) |
commit | 93e2b95c81042da479656b213acc92f7542c6c39 (patch) | |
tree | 288e5ce19e7d5699877c6173bc0e091c690d99d7 /arch/powerpc/platforms/83xx/km83xx.c | |
parent | ac6f120369ffe66058518fabf90cdd53b2503a82 (diff) | |
download | linux-fsl-qoriq-93e2b95c81042da479656b213acc92f7542c6c39.tar.xz |
powerpc/83xx: rename and update kmeter1
Beside the MPC 8360 based board kmeter1 other km83xx boards
from keymile will follow. Therefore the board specific naming
kmeter1 for functions and files were replaced with km83xx.
Additionally some updates were made:
- update defconfig for 2.6.38
- rework flash partitioning in dts file
- add gpio controller for qe_pio_c in dts
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Heiko Schocher <hs@denx.de>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Heiko Schocher <hs@denx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/83xx/km83xx.c')
-rw-r--r-- | arch/powerpc/platforms/83xx/km83xx.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/km83xx.c b/arch/powerpc/platforms/83xx/km83xx.c new file mode 100644 index 0000000..a2b9b9e --- /dev/null +++ b/arch/powerpc/platforms/83xx/km83xx.c @@ -0,0 +1,207 @@ +/* + * Copyright 2008-2011 DENX Software Engineering GmbH + * Author: Heiko Schocher <hs@denx.de> + * + * Description: + * Keymile KMETER1 board specific routines. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/reboot.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/major.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/root_dev.h> +#include <linux/initrd.h> +#include <linux/of_platform.h> +#include <linux/of_device.h> + +#include <asm/system.h> +#include <asm/atomic.h> +#include <asm/time.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/ipic.h> +#include <asm/irq.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> +#include <asm/qe.h> +#include <asm/qe_ic.h> + +#include "mpc83xx.h" + +#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */ +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init mpc83xx_km_setup_arch(void) +{ + struct device_node *np; + + if (ppc_md.progress) + ppc_md.progress("kmpbec83xx_setup_arch()", 0); + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") + mpc83xx_add_bridge(np); +#endif + +#ifdef CONFIG_QUICC_ENGINE + qe_reset(); + + np = of_find_node_by_name(NULL, "par_io"); + if (np != NULL) { + par_io_init(np); + of_node_put(np); + + for_each_node_by_name(np, "spi") + par_io_of_config(np); + + for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) + par_io_of_config(np); + } + + np = of_find_compatible_node(NULL, "network", "ucc_geth"); + if (np != NULL) { + uint svid; + + /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */ + svid = mfspr(SPRN_SVR); + if (SVR_REV(svid) == 0x0021) { + struct device_node *np_par; + struct resource res; + void __iomem *base; + int ret; + + np_par = of_find_node_by_name(NULL, "par_io"); + if (np_par == NULL) { + printk(KERN_WARNING "%s couldn;t find par_io node\n", + __func__); + return; + } + /* Map Parallel I/O ports registers */ + ret = of_address_to_resource(np_par, 0, &res); + if (ret) { + printk(KERN_WARNING "%s couldn;t map par_io registers\n", + __func__); + return; + } + base = ioremap(res.start, res.end - res.start + 1); + + /* + * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2) + * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1) + */ + setbits32((base + 0xa8), 0x0c003000); + + /* + * IMMR + 0x14AC[20:27] = 10101010 + * (data delay for both UCC's) + */ + clrsetbits_be32((base + 0xac), 0xff0, 0xaa0); + iounmap(base); + of_node_put(np_par); + } + of_node_put(np); + } +#endif /* CONFIG_QUICC_ENGINE */ +} + +static struct of_device_id kmpbec83xx_ids[] = { + { .type = "soc", }, + { .compatible = "soc", }, + { .compatible = "simple-bus", }, + { .type = "qe", }, + { .compatible = "fsl,qe", }, + {}, +}; + +static int __init kmeter_declare_of_platform_devices(void) +{ + /* Publish the QE devices */ + of_platform_bus_probe(NULL, kmpbec83xx_ids, NULL); + + return 0; +} +machine_device_initcall(mpc83xx_km, kmeter_declare_of_platform_devices); + +static void __init mpc83xx_km_init_IRQ(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,pq2pro-pic"); + if (!np) { + np = of_find_node_by_type(NULL, "ipic"); + if (!np) + return; + } + + ipic_init(np, 0); + + /* Initialize the default interrupt mapping priorities, + * in case the boot rom changed something on us. + */ + ipic_set_default_priority(); + of_node_put(np); + +#ifdef CONFIG_QUICC_ENGINE + np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic"); + if (!np) { + np = of_find_node_by_type(NULL, "qeic"); + if (!np) + return; + } + qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic); + of_node_put(np); +#endif /* CONFIG_QUICC_ENGINE */ +} + +/* list of the supported boards */ +static char *board[] __initdata = { + "Keymile,KMETER1", + "Keymile,kmpbec8321", + NULL +}; + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init mpc83xx_km_probe(void) +{ + unsigned long node = of_get_flat_dt_root(); + int i = 0; + + while (board[i]) { + if (of_flat_dt_is_compatible(node, board[i])) + break; + i++; + } + return (board[i] != NULL); +} + +define_machine(mpc83xx_km) { + .name = "mpc83xx-km-platform", + .probe = mpc83xx_km_probe, + .setup_arch = mpc83xx_km_setup_arch, + .init_IRQ = mpc83xx_km_init_IRQ, + .get_irq = ipic_get_irq, + .restart = mpc83xx_restart, + .time_init = mpc83xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; |