[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / powerpc / platforms / 85xx / ksi8560.c

/*
 * Board setup routines for the Emerson KSI8560
 *
 * Author: Alexandr Smirnov <asmirnov@ru.mvista.com>
 *
 * Based on mpc85xx_ads.c maintained by Kumar Gala
 *
 * 2008 (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/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>

#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>
#include <asm/prom.h>

#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>

#include <asm/cpm2.h>
#include <sysdev/cpm2_pic.h>

#include "mpc85xx.h"

#define KSI8560_CPLD_HVR		0x04 /* Hardware Version Register */
#define KSI8560_CPLD_PVR		0x08 /* PLD Version Register */
#define KSI8560_CPLD_RCR1		0x30 /* Reset Command Register 1 */

#define KSI8560_CPLD_RCR1_CPUHR		0x80 /* CPU Hard Reset */

static void __iomem *cpld_base = NULL;

static void machine_restart(char *cmd)
{
	if (cpld_base)
		out_8(cpld_base + KSI8560_CPLD_RCR1, KSI8560_CPLD_RCR1_CPUHR);
	else
		printk(KERN_ERR "Can't find CPLD base, hang forever\n");

	for (;;);
}

static void __init ksi8560_pic_init(void)
{
	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
			0, 256, " OpenPIC  ");
	BUG_ON(mpic == NULL);
	mpic_init(mpic);

	mpc85xx_cpm2_pic_init();
}

#ifdef CONFIG_CPM2
/*
 * Setup I/O ports
 */
struct cpm_pin {
	int port, pin, flags;
};

static struct cpm_pin __initdata ksi8560_pins[] = {
	/* SCC1 */
	{3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* SCC2 */
	{3, 26, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* FCC1 */
	{0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{2, 23, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK9 */
	{2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK10 */

};

static void __init init_ioports(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(ksi8560_pins); i++) {
		struct cpm_pin *pin = &ksi8560_pins[i];
		cpm2_set_pin(pin->port, pin->pin, pin->flags);
	}

	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK9, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
}
#endif

/*
 * Setup the architecture
 */
static void __init ksi8560_setup_arch(void)
{
	struct device_node *cpld;

	cpld = of_find_compatible_node(NULL, NULL, "emerson,KSI8560-cpld");
	if (cpld)
		cpld_base = of_iomap(cpld, 0);
	else
		printk(KERN_ERR "Can't find CPLD in device tree\n");

	if (ppc_md.progress)
		ppc_md.progress("ksi8560_setup_arch()", 0);

#ifdef CONFIG_CPM2
	cpm2_reset();
	init_ioports();
#endif
}

static void ksi8560_show_cpuinfo(struct seq_file *m)
{
	uint pvid, svid, phid1;

	pvid = mfspr(SPRN_PVR);
	svid = mfspr(SPRN_SVR);

	seq_printf(m, "Vendor\t\t: Emerson Network Power\n");
	seq_printf(m, "Board\t\t: KSI8560\n");

	if (cpld_base) {
		seq_printf(m, "Hardware rev\t: %d\n",
					in_8(cpld_base + KSI8560_CPLD_HVR));
		seq_printf(m, "CPLD rev\t: %d\n",
					in_8(cpld_base + KSI8560_CPLD_PVR));
	} else
		seq_printf(m, "Unknown Hardware and CPLD revs\n");

	seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
	seq_printf(m, "SVR\t\t: 0x%x\n", svid);

	/* Display cpu Pll setting */
	phid1 = mfspr(SPRN_HID1);
	seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
}

machine_device_initcall(ksi8560, mpc85xx_common_publish_devices);

/*
 * Called very early, device-tree isn't unflattened
 */
static int __init ksi8560_probe(void)
{
	unsigned long root = of_get_flat_dt_root();

	return of_flat_dt_is_compatible(root, "emerson,KSI8560");
}

define_machine(ksi8560) {
	.name			= "KSI8560",
	.probe			= ksi8560_probe,
	.setup_arch		= ksi8560_setup_arch,
	.init_IRQ		= ksi8560_pic_init,
	.show_cpuinfo		= ksi8560_show_cpuinfo,
	.get_irq		= mpic_get_irq,
	.restart		= machine_restart,
	.calibrate_decr		= generic_calibrate_decr,
};
Commit	Line	Data
22b619ee AS	1	/*
	2	* Board setup routines for the Emerson KSI8560
	3	*
	4	* Author: Alexandr Smirnov <asmirnov@ru.mvista.com>
	5	*
	6	* Based on mpc85xx_ads.c maintained by Kumar Gala
	7	*
	8	* 2008 (c) MontaVista, Software, Inc. This file is licensed under
	9	* the terms of the GNU General Public License version 2. This program
	10	* is licensed "as is" without any warranty of any kind, whether express
	11	* or implied.
	12	*
	13	*/
	14
	15	#include <linux/stddef.h>
	16	#include <linux/kernel.h>
	17	#include <linux/pci.h>
	18	#include <linux/kdev_t.h>
	19	#include <linux/delay.h>
	20	#include <linux/seq_file.h>
	21	#include <linux/of_platform.h>
	22
22b619ee AS	23	#include <asm/time.h>
	24	#include <asm/machdep.h>
	25	#include <asm/pci-bridge.h>
	26	#include <asm/mpic.h>
	27	#include <mm/mmu_decl.h>
	28	#include <asm/udbg.h>
	29	#include <asm/prom.h>
	30
	31	#include <sysdev/fsl_soc.h>
	32	#include <sysdev/fsl_pci.h>
	33
	34	#include <asm/cpm2.h>
	35	#include <sysdev/cpm2_pic.h>
	36
543a07b1	37	#include "mpc85xx.h"
22b619ee AS	38
	39	#define KSI8560_CPLD_HVR 0x04 /* Hardware Version Register */
	40	#define KSI8560_CPLD_PVR 0x08 /* PLD Version Register */
	41	#define KSI8560_CPLD_RCR1 0x30 /* Reset Command Register 1 */
	42
	43	#define KSI8560_CPLD_RCR1_CPUHR 0x80 /* CPU Hard Reset */
	44
	45	static void __iomem *cpld_base = NULL;
	46
	47	static void machine_restart(char *cmd)
	48	{
	49	if (cpld_base)
	50	out_8(cpld_base + KSI8560_CPLD_RCR1, KSI8560_CPLD_RCR1_CPUHR);
	51	else
	52	printk(KERN_ERR "Can't find CPLD base, hang forever\n");
	53
	54	for (;;);
	55	}
	56
22b619ee AS	57	static void __init ksi8560_pic_init(void)
22b619ee AS	58	{
e55d7f73	59	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
22b619ee AS	60	0, 256, " OpenPIC ");
22b619ee AS	61	BUG_ON(mpic == NULL);
22b619ee AS	62	mpic_init(mpic);
22b619ee AS	63
543a07b1	64	mpc85xx_cpm2_pic_init();
22b619ee AS	65	}
	66
	67	#ifdef CONFIG_CPM2
	68	/*
	69	* Setup I/O ports
	70	*/
	71	struct cpm_pin {
	72	int port, pin, flags;
	73	};
	74
	75	static struct cpm_pin __initdata ksi8560_pins[] = {
	76	/* SCC1 */
	77	{3, 29, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	78	{3, 30, CPM_PIN_OUTPUT \| CPM_PIN_SECONDARY},
	79	{3, 31, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	80
	81	/* SCC2 */
	82	{3, 26, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	83	{3, 27, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	84	{3, 28, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	85
	86	/* FCC1 */
	87	{0, 14, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	88	{0, 15, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	89	{0, 16, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	90	{0, 17, CPM_PIN_INPUT \| CPM_PIN_PRIMARY},
	91	{0, 18, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	92	{0, 19, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	93	{0, 20, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	94	{0, 21, CPM_PIN_OUTPUT \| CPM_PIN_PRIMARY},
	95	{0, 26, CPM_PIN_INPUT \| CPM_PIN_SECONDARY},
	96	{0, 27, CPM_PIN_INPUT \| CPM_PIN_SECONDARY},
	97	{0, 28, CPM_PIN_OUTPUT \| CPM_PIN_SECONDARY},
	98	{0, 29, CPM_PIN_OUTPUT \| CPM_PIN_SECONDARY},
	99	{0, 30, CPM_PIN_INPUT \| CPM_PIN_SECONDARY},
	100	{0, 31, CPM_PIN_INPUT \| CPM_PIN_SECONDARY},
	101	{2, 23, CPM_PIN_INPUT \| CPM_PIN_PRIMARY}, /* CLK9 */
	102	{2, 22, CPM_PIN_INPUT \| CPM_PIN_PRIMARY}, /* CLK10 */
	103
	104	};
	105
	106	static void __init init_ioports(void)
	107	{
	108	int i;
	109
	110	for (i = 0; i < ARRAY_SIZE(ksi8560_pins); i++) {
	111	struct cpm_pin *pin = &ksi8560_pins[i];
	112	cpm2_set_pin(pin->port, pin->pin, pin->flags);
	113	}
	114
	115	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
	116	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
	117	cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX);
	118	cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX);
	119	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK9, CPM_CLK_RX);
	120	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
	121	}
	122	#endif
	123
	124	/*
	125	* Setup the architecture
	126	*/
	127	static void __init ksi8560_setup_arch(void)
	128	{
129	struct device_node *cpld;
130
131	cpld = of_find_compatible_node(NULL, NULL, "emerson,KSI8560-cpld");
132	if (cpld)
133	cpld_base = of_iomap(cpld, 0);
134	else
135	printk(KERN_ERR "Can't find CPLD in device tree\n");
136
137	if (ppc_md.progress)
138	ppc_md.progress("ksi8560_setup_arch()", 0);
139
140	#ifdef CONFIG_CPM2
141	cpm2_reset();
142	init_ioports();
143	#endif
144	}
145
146	static void ksi8560_show_cpuinfo(struct seq_file *m)
147	{
148	uint pvid, svid, phid1;
22b619ee AS	149
	150	pvid = mfspr(SPRN_PVR);
	151	svid = mfspr(SPRN_SVR);
	152
	153	seq_printf(m, "Vendor\t\t: Emerson Network Power\n");
	154	seq_printf(m, "Board\t\t: KSI8560\n");
	155
	156	if (cpld_base) {
	157	seq_printf(m, "Hardware rev\t: %d\n",
	158	in_8(cpld_base + KSI8560_CPLD_HVR));
	159	seq_printf(m, "CPLD rev\t: %d\n",
	160	in_8(cpld_base + KSI8560_CPLD_PVR));
	161	} else
	162	seq_printf(m, "Unknown Hardware and CPLD revs\n");
	163
	164	seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
	165	seq_printf(m, "SVR\t\t: 0x%x\n", svid);
	166
	167	/* Display cpu Pll setting */
	168	phid1 = mfspr(SPRN_HID1);
	169	seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
22b619ee AS	170	}
22b619ee AS	171
46d026ac	172	machine_device_initcall(ksi8560, mpc85xx_common_publish_devices);
22b619ee AS	173
	174	/*
	175	* Called very early, device-tree isn't unflattened
	176	*/
	177	static int __init ksi8560_probe(void)
	178	{
	179	unsigned long root = of_get_flat_dt_root();
	180
	181	return of_flat_dt_is_compatible(root, "emerson,KSI8560");
	182	}
	183
	184	define_machine(ksi8560) {
	185	.name = "KSI8560",
	186	.probe = ksi8560_probe,
	187	.setup_arch = ksi8560_setup_arch,
	188	.init_IRQ = ksi8560_pic_init,
	189	.show_cpuinfo = ksi8560_show_cpuinfo,
	190	.get_irq = mpic_get_irq,
	191	.restart = machine_restart,
	192	.calibrate_decr = generic_calibrate_decr,
	193	};