07042bef45
According to the open firmware standard, finddevice call has to return a phandle with value of -1 in case of error. This commit is to: - Fix the FDT implementation of this interface (ofw_fdt_finddevice) to return (phandle_t)-1 in case of error, instead of 0 as it does now. - Fix up the callers of OF_finddevice() to compare the return value with -1 instead of 0 to check for errors. - Since phandle_t is unsigned, the return value of OF_finddevice should be checked with '== -1' rather than '<= 0' or '> 0', fix up these cases as well. Reported by: nwhitehorn Reviewed by: raj Approved by: raj, nwhitehorn
1876 lines
42 KiB
C
1876 lines
42 KiB
C
/*-
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* Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
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* All rights reserved.
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*
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* Developed by Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of MARVELL nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <machine/fdt.h>
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#include <arm/mv/mvreg.h>
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#include <arm/mv/mvvar.h>
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#include <arm/mv/mvwin.h>
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#define MAX_CPU_WIN 5
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#ifdef DEBUG
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#define debugf(fmt, args...) do { printf("%s(): ", __func__); \
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printf(fmt,##args); } while (0)
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#else
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#define debugf(fmt, args...)
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#endif
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#ifdef DEBUG
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#define MV_DUMP_WIN 1
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#else
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#define MV_DUMP_WIN 0
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#endif
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static int win_eth_can_remap(int i);
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static int decode_win_cpu_valid(void);
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static int decode_win_usb_valid(void);
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static int decode_win_eth_valid(void);
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static int decode_win_pcie_valid(void);
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static int decode_win_sata_valid(void);
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static int decode_win_cesa_valid(void);
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static int decode_win_idma_valid(void);
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static int decode_win_xor_valid(void);
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static void decode_win_cpu_setup(void);
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static void decode_win_usb_setup(u_long);
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static void decode_win_eth_setup(u_long);
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static void decode_win_pcie_setup(u_long);
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static void decode_win_sata_setup(u_long);
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static void decode_win_cesa_setup(u_long);
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static void decode_win_idma_setup(u_long);
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static void decode_win_xor_setup(u_long);
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static void decode_win_cesa_dump(u_long);
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static void decode_win_usb_dump(u_long);
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static void decode_win_eth_dump(u_long base);
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static void decode_win_idma_dump(u_long base);
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static void decode_win_xor_dump(u_long base);
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static int fdt_get_ranges(const char *, void *, int, int *, int *);
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static int win_cpu_from_dt(void);
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static int fdt_win_setup(void);
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static uint32_t used_cpu_wins;
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static uint32_t dev_mask = 0;
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static int cpu_wins_no = 0;
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static int eth_port = 0;
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static int usb_port = 0;
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static struct decode_win cpu_win_tbl[MAX_CPU_WIN];
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static const struct decode_win *cpu_wins = cpu_win_tbl;
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typedef void (*decode_win_setup_t)(u_long);
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typedef void (*dump_win_t)(u_long);
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struct soc_node_spec {
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const char *compat;
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decode_win_setup_t decode_handler;
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dump_win_t dump_handler;
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};
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static struct soc_node_spec soc_nodes[] = {
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{ "mrvl,cesa", &decode_win_cesa_setup, &decode_win_cesa_dump },
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{ "mrvl,ge", &decode_win_eth_setup, &decode_win_eth_dump },
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{ "mrvl,usb-ehci", &decode_win_usb_setup, &decode_win_usb_dump },
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{ "mrvl,sata", &decode_win_sata_setup, NULL },
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{ "mrvl,xor", &decode_win_xor_setup, &decode_win_xor_dump },
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{ "mrvl,idma", &decode_win_idma_setup, &decode_win_idma_dump },
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{ "mrvl,pcie", &decode_win_pcie_setup, NULL },
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{ NULL, NULL, NULL },
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};
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struct fdt_pm_mask_entry fdt_pm_mask_table[] = {
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{ "mrvl,ge", CPU_PM_CTRL_GE(0) },
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{ "mrvl,ge", CPU_PM_CTRL_GE(1) },
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{ "mrvl,usb-ehci", CPU_PM_CTRL_USB(0) },
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{ "mrvl,usb-ehci", CPU_PM_CTRL_USB(1) },
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{ "mrvl,usb-ehci", CPU_PM_CTRL_USB(2) },
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{ "mrvl,cesa", CPU_PM_CTRL_CRYPTO },
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{ "mrvl,xor", CPU_PM_CTRL_XOR },
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{ "mrvl,sata", CPU_PM_CTRL_SATA },
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{ NULL, 0 }
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};
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static __inline int
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pm_is_disabled(uint32_t mask)
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{
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return (soc_power_ctrl_get(mask) == mask ? 0 : 1);
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}
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/*
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* Disable device using power management register.
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* 1 - Device Power On
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* 0 - Device Power Off
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* Mask can be set in loader.
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* EXAMPLE:
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* loader> set hw.pm-disable-mask=0x2
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*
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* Common mask:
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* |-------------------------------|
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* | Device | Kirkwood | Discovery |
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* |-------------------------------|
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* | USB0 | 0x00008 | 0x020000 |
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* |-------------------------------|
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* | USB1 | - | 0x040000 |
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* |-------------------------------|
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* | USB2 | - | 0x080000 |
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* |-------------------------------|
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* | GE0 | 0x00001 | 0x000002 |
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* |-------------------------------|
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* | GE1 | - | 0x000004 |
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* |-------------------------------|
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* | IDMA | - | 0x100000 |
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* |-------------------------------|
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* | XOR | 0x10000 | 0x200000 |
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* |-------------------------------|
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* | CESA | 0x20000 | 0x400000 |
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* |-------------------------------|
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* | SATA | 0x04000 | 0x004000 |
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* --------------------------------|
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* This feature can be used only on Kirkwood and Discovery
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* machines.
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*/
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static __inline void
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pm_disable_device(int mask)
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{
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#ifdef DIAGNOSTIC
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uint32_t reg;
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reg = soc_power_ctrl_get(CPU_PM_CTRL_ALL);
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printf("Power Management Register: 0%x\n", reg);
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reg &= ~mask;
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soc_power_ctrl_set(reg);
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printf("Device %x is disabled\n", mask);
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reg = soc_power_ctrl_get(CPU_PM_CTRL_ALL);
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printf("Power Management Register: 0%x\n", reg);
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#endif
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}
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int
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fdt_pm(phandle_t node)
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{
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uint32_t cpu_pm_ctrl;
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int i, ena, compat;
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ena = 1;
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cpu_pm_ctrl = read_cpu_ctrl(CPU_PM_CTRL);
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for (i = 0; fdt_pm_mask_table[i].compat != NULL; i++) {
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if (dev_mask & (1 << i))
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continue;
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compat = fdt_is_compatible(node, fdt_pm_mask_table[i].compat);
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if (compat && (~cpu_pm_ctrl & fdt_pm_mask_table[i].mask)) {
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dev_mask |= (1 << i);
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ena = 0;
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break;
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} else if (compat) {
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dev_mask |= (1 << i);
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break;
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}
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}
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return (ena);
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}
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uint32_t
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read_cpu_ctrl(uint32_t reg)
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{
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return (bus_space_read_4(fdtbus_bs_tag, MV_CPU_CONTROL_BASE, reg));
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}
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void
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write_cpu_ctrl(uint32_t reg, uint32_t val)
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{
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bus_space_write_4(fdtbus_bs_tag, MV_CPU_CONTROL_BASE, reg, val);
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}
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void
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cpu_reset(void)
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{
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write_cpu_ctrl(RSTOUTn_MASK, SOFT_RST_OUT_EN);
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write_cpu_ctrl(SYSTEM_SOFT_RESET, SYS_SOFT_RST);
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while (1);
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}
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uint32_t
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cpu_extra_feat(void)
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{
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uint32_t dev, rev;
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uint32_t ef = 0;
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soc_id(&dev, &rev);
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if (dev == MV_DEV_88F6281 || dev == MV_DEV_MV78100_Z0 ||
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dev == MV_DEV_MV78100)
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__asm __volatile("mrc p15, 1, %0, c15, c1, 0" : "=r" (ef));
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else if (dev == MV_DEV_88F5182 || dev == MV_DEV_88F5281)
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__asm __volatile("mrc p15, 0, %0, c14, c0, 0" : "=r" (ef));
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else if (bootverbose)
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printf("This ARM Core does not support any extra features\n");
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return (ef);
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}
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/*
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* Get the power status of device. This feature is only supported on
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* Kirkwood and Discovery SoCs.
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*/
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uint32_t
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soc_power_ctrl_get(uint32_t mask)
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{
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#ifndef SOC_MV_ORION
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if (mask != CPU_PM_CTRL_NONE)
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mask &= read_cpu_ctrl(CPU_PM_CTRL);
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return (mask);
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#else
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return (mask);
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#endif
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}
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/*
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* Set the power status of device. This feature is only supported on
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* Kirkwood and Discovery SoCs.
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*/
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void
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soc_power_ctrl_set(uint32_t mask)
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{
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#ifndef SOC_MV_ORION
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if (mask != CPU_PM_CTRL_NONE)
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write_cpu_ctrl(CPU_PM_CTRL, mask);
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#endif
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}
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void
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soc_id(uint32_t *dev, uint32_t *rev)
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{
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/*
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* Notice: system identifiers are available in the registers range of
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* PCIE controller, so using this function is only allowed (and
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* possible) after the internal registers range has been mapped in via
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* pmap_devmap_bootstrap().
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*/
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*dev = bus_space_read_4(fdtbus_bs_tag, MV_PCIE_BASE, 0) >> 16;
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*rev = bus_space_read_4(fdtbus_bs_tag, MV_PCIE_BASE, 8) & 0xff;
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}
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static void
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soc_identify(void)
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{
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uint32_t d, r;
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const char *dev;
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const char *rev;
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soc_id(&d, &r);
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printf("SOC: ");
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if (bootverbose)
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printf("(0x%4x:0x%02x) ", d, r);
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rev = "";
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switch (d) {
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case MV_DEV_88F5181:
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dev = "Marvell 88F5181";
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if (r == 3)
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rev = "B1";
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break;
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case MV_DEV_88F5182:
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dev = "Marvell 88F5182";
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if (r == 2)
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rev = "A2";
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break;
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case MV_DEV_88F5281:
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dev = "Marvell 88F5281";
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if (r == 4)
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rev = "D0";
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else if (r == 5)
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rev = "D1";
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else if (r == 6)
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rev = "D2";
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break;
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case MV_DEV_88F6281:
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dev = "Marvell 88F6281";
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if (r == 0)
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rev = "Z0";
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else if (r == 2)
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rev = "A0";
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else if (r == 3)
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rev = "A1";
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break;
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case MV_DEV_MV78100_Z0:
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dev = "Marvell MV78100 Z0";
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break;
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case MV_DEV_MV78100:
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dev = "Marvell MV78100";
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break;
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default:
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dev = "UNKNOWN";
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break;
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}
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printf("%s", dev);
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if (*rev != '\0')
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printf(" rev %s", rev);
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printf(", TClock %dMHz\n", get_tclk() / 1000 / 1000);
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/* TODO add info on currently set endianess */
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}
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static void
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platform_identify(void *dummy)
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{
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soc_identify();
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/*
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* XXX Board identification e.g. read out from FPGA or similar should
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* go here
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*/
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}
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SYSINIT(platform_identify, SI_SUB_CPU, SI_ORDER_SECOND, platform_identify,
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NULL);
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int
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soc_decode_win(void)
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{
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uint32_t dev, rev;
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int mask, err;
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mask = 0;
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TUNABLE_INT_FETCH("hw.pm-disable-mask", &mask);
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if (mask != 0)
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pm_disable_device(mask);
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/* Retrieve data about physical addresses from device tree. */
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if ((err = win_cpu_from_dt()) != 0)
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return (err);
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/* Retrieve our ID: some windows facilities vary between SoC models */
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soc_id(&dev, &rev);
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if (!decode_win_cpu_valid() || !decode_win_usb_valid() ||
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!decode_win_eth_valid() || !decode_win_idma_valid() ||
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!decode_win_pcie_valid() || !decode_win_sata_valid() ||
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!decode_win_cesa_valid() || !decode_win_xor_valid())
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return (EINVAL);
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decode_win_cpu_setup();
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if (MV_DUMP_WIN)
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soc_dump_decode_win();
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eth_port = 0;
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usb_port = 0;
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if ((err = fdt_win_setup()) != 0)
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return (err);
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return (0);
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}
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/**************************************************************************
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* Decode windows registers accessors
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**************************************************************************/
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WIN_REG_IDX_RD(win_cpu, cr, MV_WIN_CPU_CTRL, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_RD(win_cpu, br, MV_WIN_CPU_BASE, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_RD(win_cpu, remap_l, MV_WIN_CPU_REMAP_LO, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_RD(win_cpu, remap_h, MV_WIN_CPU_REMAP_HI, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_WR(win_cpu, cr, MV_WIN_CPU_CTRL, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_WR(win_cpu, br, MV_WIN_CPU_BASE, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_WR(win_cpu, remap_l, MV_WIN_CPU_REMAP_LO, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_WR(win_cpu, remap_h, MV_WIN_CPU_REMAP_HI, MV_MBUS_BRIDGE_BASE)
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WIN_REG_IDX_RD(ddr, br, MV_WIN_DDR_BASE, MV_DDR_CADR_BASE)
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WIN_REG_IDX_RD(ddr, sz, MV_WIN_DDR_SIZE, MV_DDR_CADR_BASE)
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WIN_REG_BASE_IDX_RD(win_usb, cr, MV_WIN_USB_CTRL)
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WIN_REG_BASE_IDX_RD(win_usb, br, MV_WIN_USB_BASE)
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WIN_REG_BASE_IDX_WR(win_usb, cr, MV_WIN_USB_CTRL)
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WIN_REG_BASE_IDX_WR(win_usb, br, MV_WIN_USB_BASE)
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WIN_REG_BASE_IDX_RD(win_cesa, cr, MV_WIN_CESA_CTRL)
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WIN_REG_BASE_IDX_RD(win_cesa, br, MV_WIN_CESA_BASE)
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WIN_REG_BASE_IDX_WR(win_cesa, cr, MV_WIN_CESA_CTRL)
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WIN_REG_BASE_IDX_WR(win_cesa, br, MV_WIN_CESA_BASE)
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WIN_REG_BASE_IDX_RD(win_eth, br, MV_WIN_ETH_BASE)
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WIN_REG_BASE_IDX_RD(win_eth, sz, MV_WIN_ETH_SIZE)
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WIN_REG_BASE_IDX_RD(win_eth, har, MV_WIN_ETH_REMAP)
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WIN_REG_BASE_IDX_WR(win_eth, br, MV_WIN_ETH_BASE)
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WIN_REG_BASE_IDX_WR(win_eth, sz, MV_WIN_ETH_SIZE)
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WIN_REG_BASE_IDX_WR(win_eth, har, MV_WIN_ETH_REMAP)
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WIN_REG_BASE_IDX_RD2(win_xor, br, MV_WIN_XOR_BASE)
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WIN_REG_BASE_IDX_RD2(win_xor, sz, MV_WIN_XOR_SIZE)
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WIN_REG_BASE_IDX_RD2(win_xor, har, MV_WIN_XOR_REMAP)
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WIN_REG_BASE_IDX_RD2(win_xor, ctrl, MV_WIN_XOR_CTRL)
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WIN_REG_BASE_IDX_WR2(win_xor, br, MV_WIN_XOR_BASE)
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WIN_REG_BASE_IDX_WR2(win_xor, sz, MV_WIN_XOR_SIZE)
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WIN_REG_BASE_IDX_WR2(win_xor, har, MV_WIN_XOR_REMAP)
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WIN_REG_BASE_IDX_WR2(win_xor, ctrl, MV_WIN_XOR_CTRL)
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WIN_REG_BASE_RD(win_eth, bare, 0x290)
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WIN_REG_BASE_RD(win_eth, epap, 0x294)
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WIN_REG_BASE_WR(win_eth, bare, 0x290)
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WIN_REG_BASE_WR(win_eth, epap, 0x294)
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|
|
WIN_REG_BASE_IDX_RD(win_pcie, cr, MV_WIN_PCIE_CTRL);
|
|
WIN_REG_BASE_IDX_RD(win_pcie, br, MV_WIN_PCIE_BASE);
|
|
WIN_REG_BASE_IDX_RD(win_pcie, remap, MV_WIN_PCIE_REMAP);
|
|
WIN_REG_BASE_IDX_WR(win_pcie, cr, MV_WIN_PCIE_CTRL);
|
|
WIN_REG_BASE_IDX_WR(win_pcie, br, MV_WIN_PCIE_BASE);
|
|
WIN_REG_BASE_IDX_WR(win_pcie, remap, MV_WIN_PCIE_REMAP);
|
|
WIN_REG_BASE_IDX_WR(pcie, bar, MV_PCIE_BAR);
|
|
|
|
WIN_REG_BASE_IDX_RD(win_idma, br, MV_WIN_IDMA_BASE)
|
|
WIN_REG_BASE_IDX_RD(win_idma, sz, MV_WIN_IDMA_SIZE)
|
|
WIN_REG_BASE_IDX_RD(win_idma, har, MV_WIN_IDMA_REMAP)
|
|
WIN_REG_BASE_IDX_RD(win_idma, cap, MV_WIN_IDMA_CAP)
|
|
WIN_REG_BASE_IDX_WR(win_idma, br, MV_WIN_IDMA_BASE)
|
|
WIN_REG_BASE_IDX_WR(win_idma, sz, MV_WIN_IDMA_SIZE)
|
|
WIN_REG_BASE_IDX_WR(win_idma, har, MV_WIN_IDMA_REMAP)
|
|
WIN_REG_BASE_IDX_WR(win_idma, cap, MV_WIN_IDMA_CAP)
|
|
WIN_REG_BASE_RD(win_idma, bare, 0xa80)
|
|
WIN_REG_BASE_WR(win_idma, bare, 0xa80)
|
|
|
|
WIN_REG_BASE_IDX_RD(win_sata, cr, MV_WIN_SATA_CTRL);
|
|
WIN_REG_BASE_IDX_RD(win_sata, br, MV_WIN_SATA_BASE);
|
|
WIN_REG_BASE_IDX_WR(win_sata, cr, MV_WIN_SATA_CTRL);
|
|
WIN_REG_BASE_IDX_WR(win_sata, br, MV_WIN_SATA_BASE);
|
|
|
|
/**************************************************************************
|
|
* Decode windows helper routines
|
|
**************************************************************************/
|
|
void
|
|
soc_dump_decode_win(void)
|
|
{
|
|
uint32_t dev, rev;
|
|
int i;
|
|
|
|
soc_id(&dev, &rev);
|
|
|
|
for (i = 0; i < MV_WIN_CPU_MAX; i++) {
|
|
printf("CPU window#%d: c 0x%08x, b 0x%08x", i,
|
|
win_cpu_cr_read(i),
|
|
win_cpu_br_read(i));
|
|
|
|
if (win_cpu_can_remap(i))
|
|
printf(", rl 0x%08x, rh 0x%08x",
|
|
win_cpu_remap_l_read(i),
|
|
win_cpu_remap_h_read(i));
|
|
|
|
printf("\n");
|
|
}
|
|
printf("Internal regs base: 0x%08x\n",
|
|
bus_space_read_4(fdtbus_bs_tag, MV_INTREGS_BASE, 0));
|
|
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
printf("DDR CS#%d: b 0x%08x, s 0x%08x\n", i,
|
|
ddr_br_read(i), ddr_sz_read(i));
|
|
}
|
|
|
|
/**************************************************************************
|
|
* CPU windows routines
|
|
**************************************************************************/
|
|
int
|
|
win_cpu_can_remap(int i)
|
|
{
|
|
uint32_t dev, rev;
|
|
|
|
soc_id(&dev, &rev);
|
|
|
|
/* Depending on the SoC certain windows have remap capability */
|
|
if ((dev == MV_DEV_88F5182 && i < 2) ||
|
|
(dev == MV_DEV_88F5281 && i < 4) ||
|
|
(dev == MV_DEV_88F6281 && i < 4) ||
|
|
(dev == MV_DEV_MV78100 && i < 8) ||
|
|
(dev == MV_DEV_MV78100_Z0 && i < 8))
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* XXX This should check for overlapping remap fields too.. */
|
|
int
|
|
decode_win_overlap(int win, int win_no, const struct decode_win *wintab)
|
|
{
|
|
const struct decode_win *tab;
|
|
int i;
|
|
|
|
tab = wintab;
|
|
|
|
for (i = 0; i < win_no; i++, tab++) {
|
|
if (i == win)
|
|
/* Skip self */
|
|
continue;
|
|
|
|
if ((tab->base + tab->size - 1) < (wintab + win)->base)
|
|
continue;
|
|
|
|
else if (((wintab + win)->base + (wintab + win)->size - 1) <
|
|
tab->base)
|
|
continue;
|
|
else
|
|
return (i);
|
|
}
|
|
|
|
return (-1);
|
|
}
|
|
|
|
static int
|
|
decode_win_cpu_valid(void)
|
|
{
|
|
int i, j, rv;
|
|
uint32_t b, e, s;
|
|
|
|
if (cpu_wins_no > MV_WIN_CPU_MAX) {
|
|
printf("CPU windows: too many entries: %d\n", cpu_wins_no);
|
|
return (0);
|
|
}
|
|
|
|
rv = 1;
|
|
for (i = 0; i < cpu_wins_no; i++) {
|
|
|
|
if (cpu_wins[i].target == 0) {
|
|
printf("CPU window#%d: DDR target window is not "
|
|
"supposed to be reprogrammed!\n", i);
|
|
rv = 0;
|
|
}
|
|
|
|
if (cpu_wins[i].remap >= 0 && win_cpu_can_remap(i) != 1) {
|
|
printf("CPU window#%d: not capable of remapping, but "
|
|
"val 0x%08x defined\n", i, cpu_wins[i].remap);
|
|
rv = 0;
|
|
}
|
|
|
|
s = cpu_wins[i].size;
|
|
b = cpu_wins[i].base;
|
|
e = b + s - 1;
|
|
if (s > (0xFFFFFFFF - b + 1)) {
|
|
/*
|
|
* XXX this boundary check should account for 64bit
|
|
* and remapping..
|
|
*/
|
|
printf("CPU window#%d: no space for size 0x%08x at "
|
|
"0x%08x\n", i, s, b);
|
|
rv = 0;
|
|
continue;
|
|
}
|
|
|
|
j = decode_win_overlap(i, cpu_wins_no, &cpu_wins[0]);
|
|
if (j >= 0) {
|
|
printf("CPU window#%d: (0x%08x - 0x%08x) overlaps "
|
|
"with #%d (0x%08x - 0x%08x)\n", i, b, e, j,
|
|
cpu_wins[j].base,
|
|
cpu_wins[j].base + cpu_wins[j].size - 1);
|
|
rv = 0;
|
|
}
|
|
}
|
|
|
|
return (rv);
|
|
}
|
|
|
|
int
|
|
decode_win_cpu_set(int target, int attr, vm_paddr_t base, uint32_t size,
|
|
int remap)
|
|
{
|
|
uint32_t br, cr;
|
|
int win;
|
|
|
|
if (used_cpu_wins >= MV_WIN_CPU_MAX)
|
|
return (0);
|
|
|
|
win = used_cpu_wins++;
|
|
|
|
br = base & 0xffff0000;
|
|
win_cpu_br_write(win, br);
|
|
|
|
if (win_cpu_can_remap(win)) {
|
|
if (remap >= 0) {
|
|
win_cpu_remap_l_write(win, remap & 0xffff0000);
|
|
win_cpu_remap_h_write(win, 0);
|
|
} else {
|
|
/*
|
|
* Remap function is not used for a given window
|
|
* (capable of remapping) - set remap field with the
|
|
* same value as base.
|
|
*/
|
|
win_cpu_remap_l_write(win, base & 0xffff0000);
|
|
win_cpu_remap_h_write(win, 0);
|
|
}
|
|
}
|
|
|
|
cr = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
|
|
win_cpu_cr_write(win, cr);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
decode_win_cpu_setup(void)
|
|
{
|
|
int i;
|
|
|
|
used_cpu_wins = 0;
|
|
|
|
/* Disable all CPU windows */
|
|
for (i = 0; i < MV_WIN_CPU_MAX; i++) {
|
|
win_cpu_cr_write(i, 0);
|
|
win_cpu_br_write(i, 0);
|
|
if (win_cpu_can_remap(i)) {
|
|
win_cpu_remap_l_write(i, 0);
|
|
win_cpu_remap_h_write(i, 0);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < cpu_wins_no; i++)
|
|
if (cpu_wins[i].target > 0)
|
|
decode_win_cpu_set(cpu_wins[i].target,
|
|
cpu_wins[i].attr, cpu_wins[i].base,
|
|
cpu_wins[i].size, cpu_wins[i].remap);
|
|
|
|
}
|
|
|
|
/*
|
|
* Check if we're able to cover all active DDR banks.
|
|
*/
|
|
static int
|
|
decode_win_can_cover_ddr(int max)
|
|
{
|
|
int i, c;
|
|
|
|
c = 0;
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i))
|
|
c++;
|
|
|
|
if (c > max) {
|
|
printf("Unable to cover all active DDR banks: "
|
|
"%d, available windows: %d\n", c, max);
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
/**************************************************************************
|
|
* DDR windows routines
|
|
**************************************************************************/
|
|
int
|
|
ddr_is_active(int i)
|
|
{
|
|
|
|
if (ddr_sz_read(i) & 0x1)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
uint32_t
|
|
ddr_base(int i)
|
|
{
|
|
|
|
return (ddr_br_read(i) & 0xff000000);
|
|
}
|
|
|
|
uint32_t
|
|
ddr_size(int i)
|
|
{
|
|
|
|
return ((ddr_sz_read(i) | 0x00ffffff) + 1);
|
|
}
|
|
|
|
uint32_t
|
|
ddr_attr(int i)
|
|
{
|
|
|
|
return (i == 0 ? 0xe :
|
|
(i == 1 ? 0xd :
|
|
(i == 2 ? 0xb :
|
|
(i == 3 ? 0x7 : 0xff))));
|
|
}
|
|
|
|
uint32_t
|
|
ddr_target(int i)
|
|
{
|
|
|
|
/* Mbus unit ID is 0x0 for DDR SDRAM controller */
|
|
return (0);
|
|
}
|
|
|
|
/**************************************************************************
|
|
* USB windows routines
|
|
**************************************************************************/
|
|
static int
|
|
decode_win_usb_valid(void)
|
|
{
|
|
|
|
return (decode_win_can_cover_ddr(MV_WIN_USB_MAX));
|
|
}
|
|
|
|
static void
|
|
decode_win_usb_dump(u_long base)
|
|
{
|
|
int i;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_USB(usb_port - 1)))
|
|
return;
|
|
|
|
for (i = 0; i < MV_WIN_USB_MAX; i++)
|
|
printf("USB window#%d: c 0x%08x, b 0x%08x\n", i,
|
|
win_usb_cr_read(base, i), win_usb_br_read(base, i));
|
|
}
|
|
|
|
/*
|
|
* Set USB decode windows.
|
|
*/
|
|
static void
|
|
decode_win_usb_setup(u_long base)
|
|
{
|
|
uint32_t br, cr;
|
|
int i, j;
|
|
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_USB(usb_port)))
|
|
return;
|
|
|
|
usb_port++;
|
|
|
|
for (i = 0; i < MV_WIN_USB_MAX; i++) {
|
|
win_usb_cr_write(base, i, 0);
|
|
win_usb_br_write(base, i, 0);
|
|
}
|
|
|
|
/* Only access to active DRAM banks is required */
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++) {
|
|
if (ddr_is_active(i)) {
|
|
br = ddr_base(i);
|
|
/*
|
|
* XXX for 6281 we should handle Mbus write
|
|
* burst limit field in the ctrl reg
|
|
*/
|
|
cr = (((ddr_size(i) - 1) & 0xffff0000) |
|
|
(ddr_attr(i) << 8) |
|
|
(ddr_target(i) << 4) | 1);
|
|
|
|
/* Set the first free USB window */
|
|
for (j = 0; j < MV_WIN_USB_MAX; j++) {
|
|
if (win_usb_cr_read(base, j) & 0x1)
|
|
continue;
|
|
|
|
win_usb_br_write(base, j, br);
|
|
win_usb_cr_write(base, j, cr);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**************************************************************************
|
|
* ETH windows routines
|
|
**************************************************************************/
|
|
|
|
static int
|
|
win_eth_can_remap(int i)
|
|
{
|
|
|
|
/* ETH encode windows 0-3 have remap capability */
|
|
if (i < 4)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
eth_bare_read(uint32_t base, int i)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_eth_bare_read(base);
|
|
v &= (1 << i);
|
|
|
|
return (v >> i);
|
|
}
|
|
|
|
static void
|
|
eth_bare_write(uint32_t base, int i, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_eth_bare_read(base);
|
|
v &= ~(1 << i);
|
|
v |= (val << i);
|
|
win_eth_bare_write(base, v);
|
|
}
|
|
|
|
static void
|
|
eth_epap_write(uint32_t base, int i, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_eth_epap_read(base);
|
|
v &= ~(0x3 << (i * 2));
|
|
v |= (val << (i * 2));
|
|
win_eth_epap_write(base, v);
|
|
}
|
|
|
|
static void
|
|
decode_win_eth_dump(u_long base)
|
|
{
|
|
int i;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_GE(eth_port - 1)))
|
|
return;
|
|
|
|
for (i = 0; i < MV_WIN_ETH_MAX; i++) {
|
|
printf("ETH window#%d: b 0x%08x, s 0x%08x", i,
|
|
win_eth_br_read(base, i),
|
|
win_eth_sz_read(base, i));
|
|
|
|
if (win_eth_can_remap(i))
|
|
printf(", ha 0x%08x",
|
|
win_eth_har_read(base, i));
|
|
|
|
printf("\n");
|
|
}
|
|
printf("ETH windows: bare 0x%08x, epap 0x%08x\n",
|
|
win_eth_bare_read(base),
|
|
win_eth_epap_read(base));
|
|
}
|
|
|
|
static void
|
|
decode_win_eth_setup(u_long base)
|
|
{
|
|
uint32_t br, sz;
|
|
int i, j;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_GE(eth_port)))
|
|
return;
|
|
|
|
eth_port++;
|
|
|
|
/* Disable, clear and revoke protection for all ETH windows */
|
|
for (i = 0; i < MV_WIN_ETH_MAX; i++) {
|
|
|
|
eth_bare_write(base, i, 1);
|
|
eth_epap_write(base, i, 0);
|
|
win_eth_br_write(base, i, 0);
|
|
win_eth_sz_write(base, i, 0);
|
|
if (win_eth_can_remap(i))
|
|
win_eth_har_write(base, i, 0);
|
|
}
|
|
|
|
/* Only access to active DRAM banks is required */
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i)) {
|
|
|
|
br = ddr_base(i) | (ddr_attr(i) << 8) | ddr_target(i);
|
|
sz = ((ddr_size(i) - 1) & 0xffff0000);
|
|
|
|
/* Set the first free ETH window */
|
|
for (j = 0; j < MV_WIN_ETH_MAX; j++) {
|
|
if (eth_bare_read(base, j) == 0)
|
|
continue;
|
|
|
|
win_eth_br_write(base, j, br);
|
|
win_eth_sz_write(base, j, sz);
|
|
|
|
/* XXX remapping ETH windows not supported */
|
|
|
|
/* Set protection RW */
|
|
eth_epap_write(base, j, 0x3);
|
|
|
|
/* Enable window */
|
|
eth_bare_write(base, j, 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
decode_win_eth_valid(void)
|
|
{
|
|
|
|
return (decode_win_can_cover_ddr(MV_WIN_ETH_MAX));
|
|
}
|
|
|
|
/**************************************************************************
|
|
* PCIE windows routines
|
|
**************************************************************************/
|
|
|
|
static void
|
|
decode_win_pcie_setup(u_long base)
|
|
{
|
|
uint32_t size = 0;
|
|
uint32_t cr, br;
|
|
int i, j;
|
|
|
|
for (i = 0; i < MV_PCIE_BAR_MAX; i++)
|
|
pcie_bar_write(base, i, 0);
|
|
|
|
for (i = 0; i < MV_WIN_PCIE_MAX; i++) {
|
|
win_pcie_cr_write(base, i, 0);
|
|
win_pcie_br_write(base, i, 0);
|
|
win_pcie_remap_write(base, i, 0);
|
|
}
|
|
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++) {
|
|
if (ddr_is_active(i)) {
|
|
/* Map DDR to BAR 1 */
|
|
cr = (ddr_size(i) - 1) & 0xffff0000;
|
|
size += ddr_size(i) & 0xffff0000;
|
|
cr |= (ddr_attr(i) << 8) | (ddr_target(i) << 4) | 1;
|
|
br = ddr_base(i);
|
|
|
|
/* Use the first available PCIE window */
|
|
for (j = 0; j < MV_WIN_PCIE_MAX; j++) {
|
|
if (win_pcie_cr_read(base, j) != 0)
|
|
continue;
|
|
|
|
win_pcie_br_write(base, j, br);
|
|
win_pcie_cr_write(base, j, cr);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Upper 16 bits in BAR register is interpreted as BAR size
|
|
* (in 64 kB units) plus 64kB, so substract 0x10000
|
|
* form value passed to register to get correct value.
|
|
*/
|
|
size -= 0x10000;
|
|
pcie_bar_write(base, 0, size | 1);
|
|
}
|
|
|
|
static int
|
|
decode_win_pcie_valid(void)
|
|
{
|
|
|
|
return (decode_win_can_cover_ddr(MV_WIN_PCIE_MAX));
|
|
}
|
|
|
|
/**************************************************************************
|
|
* IDMA windows routines
|
|
**************************************************************************/
|
|
#if defined(SOC_MV_ORION) || defined(SOC_MV_DISCOVERY)
|
|
static int
|
|
idma_bare_read(u_long base, int i)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_idma_bare_read(base);
|
|
v &= (1 << i);
|
|
|
|
return (v >> i);
|
|
}
|
|
|
|
static void
|
|
idma_bare_write(u_long base, int i, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_idma_bare_read(base);
|
|
v &= ~(1 << i);
|
|
v |= (val << i);
|
|
win_idma_bare_write(base, v);
|
|
}
|
|
|
|
/*
|
|
* Sets channel protection 'val' for window 'w' on channel 'c'
|
|
*/
|
|
static void
|
|
idma_cap_write(u_long base, int c, int w, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_idma_cap_read(base, c);
|
|
v &= ~(0x3 << (w * 2));
|
|
v |= (val << (w * 2));
|
|
win_idma_cap_write(base, c, v);
|
|
}
|
|
|
|
/*
|
|
* Set protection 'val' on all channels for window 'w'
|
|
*/
|
|
static void
|
|
idma_set_prot(u_long base, int w, int val)
|
|
{
|
|
int c;
|
|
|
|
for (c = 0; c < MV_IDMA_CHAN_MAX; c++)
|
|
idma_cap_write(base, c, w, val);
|
|
}
|
|
|
|
static int
|
|
win_idma_can_remap(int i)
|
|
{
|
|
|
|
/* IDMA decode windows 0-3 have remap capability */
|
|
if (i < 4)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
decode_win_idma_setup(u_long base)
|
|
{
|
|
uint32_t br, sz;
|
|
int i, j;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_IDMA))
|
|
return;
|
|
/*
|
|
* Disable and clear all IDMA windows, revoke protection for all channels
|
|
*/
|
|
for (i = 0; i < MV_WIN_IDMA_MAX; i++) {
|
|
|
|
idma_bare_write(base, i, 1);
|
|
win_idma_br_write(base, i, 0);
|
|
win_idma_sz_write(base, i, 0);
|
|
if (win_idma_can_remap(i) == 1)
|
|
win_idma_har_write(base, i, 0);
|
|
}
|
|
for (i = 0; i < MV_IDMA_CHAN_MAX; i++)
|
|
win_idma_cap_write(base, i, 0);
|
|
|
|
/*
|
|
* Set up access to all active DRAM banks
|
|
*/
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i)) {
|
|
br = ddr_base(i) | (ddr_attr(i) << 8) | ddr_target(i);
|
|
sz = ((ddr_size(i) - 1) & 0xffff0000);
|
|
|
|
/* Place DDR entries in non-remapped windows */
|
|
for (j = 0; j < MV_WIN_IDMA_MAX; j++)
|
|
if (win_idma_can_remap(j) != 1 &&
|
|
idma_bare_read(base, j) == 1) {
|
|
|
|
/* Configure window */
|
|
win_idma_br_write(base, j, br);
|
|
win_idma_sz_write(base, j, sz);
|
|
|
|
/* Set protection RW on all channels */
|
|
idma_set_prot(base, j, 0x3);
|
|
|
|
/* Enable window */
|
|
idma_bare_write(base, j, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Remaining targets -- from statically defined table
|
|
*/
|
|
for (i = 0; i < idma_wins_no; i++)
|
|
if (idma_wins[i].target > 0) {
|
|
br = (idma_wins[i].base & 0xffff0000) |
|
|
(idma_wins[i].attr << 8) | idma_wins[i].target;
|
|
sz = ((idma_wins[i].size - 1) & 0xffff0000);
|
|
|
|
/* Set the first free IDMA window */
|
|
for (j = 0; j < MV_WIN_IDMA_MAX; j++) {
|
|
if (idma_bare_read(base, j) == 0)
|
|
continue;
|
|
|
|
/* Configure window */
|
|
win_idma_br_write(base, j, br);
|
|
win_idma_sz_write(base, j, sz);
|
|
if (win_idma_can_remap(j) &&
|
|
idma_wins[j].remap >= 0)
|
|
win_idma_har_write(base, j,
|
|
idma_wins[j].remap);
|
|
|
|
/* Set protection RW on all channels */
|
|
idma_set_prot(base, j, 0x3);
|
|
|
|
/* Enable window */
|
|
idma_bare_write(base, j, 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
decode_win_idma_valid(void)
|
|
{
|
|
const struct decode_win *wintab;
|
|
int c, i, j, rv;
|
|
uint32_t b, e, s;
|
|
|
|
if (idma_wins_no > MV_WIN_IDMA_MAX) {
|
|
printf("IDMA windows: too many entries: %d\n", idma_wins_no);
|
|
return (0);
|
|
}
|
|
for (i = 0, c = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i))
|
|
c++;
|
|
|
|
if (idma_wins_no > (MV_WIN_IDMA_MAX - c)) {
|
|
printf("IDMA windows: too many entries: %d, available: %d\n",
|
|
idma_wins_no, MV_WIN_IDMA_MAX - c);
|
|
return (0);
|
|
}
|
|
|
|
wintab = idma_wins;
|
|
rv = 1;
|
|
for (i = 0; i < idma_wins_no; i++, wintab++) {
|
|
|
|
if (wintab->target == 0) {
|
|
printf("IDMA window#%d: DDR target window is not "
|
|
"supposed to be reprogrammed!\n", i);
|
|
rv = 0;
|
|
}
|
|
|
|
if (wintab->remap >= 0 && win_cpu_can_remap(i) != 1) {
|
|
printf("IDMA window#%d: not capable of remapping, but "
|
|
"val 0x%08x defined\n", i, wintab->remap);
|
|
rv = 0;
|
|
}
|
|
|
|
s = wintab->size;
|
|
b = wintab->base;
|
|
e = b + s - 1;
|
|
if (s > (0xFFFFFFFF - b + 1)) {
|
|
/* XXX this boundary check should account for 64bit and
|
|
* remapping.. */
|
|
printf("IDMA window#%d: no space for size 0x%08x at "
|
|
"0x%08x\n", i, s, b);
|
|
rv = 0;
|
|
continue;
|
|
}
|
|
|
|
j = decode_win_overlap(i, idma_wins_no, &idma_wins[0]);
|
|
if (j >= 0) {
|
|
printf("IDMA window#%d: (0x%08x - 0x%08x) overlaps "
|
|
"with #%d (0x%08x - 0x%08x)\n", i, b, e, j,
|
|
idma_wins[j].base,
|
|
idma_wins[j].base + idma_wins[j].size - 1);
|
|
rv = 0;
|
|
}
|
|
}
|
|
|
|
return (rv);
|
|
}
|
|
|
|
void
|
|
decode_win_idma_dump(u_long base)
|
|
{
|
|
int i;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_IDMA))
|
|
return;
|
|
|
|
for (i = 0; i < MV_WIN_IDMA_MAX; i++) {
|
|
printf("IDMA window#%d: b 0x%08x, s 0x%08x", i,
|
|
win_idma_br_read(base, i), win_idma_sz_read(base, i));
|
|
|
|
if (win_idma_can_remap(i))
|
|
printf(", ha 0x%08x", win_idma_har_read(base, i));
|
|
|
|
printf("\n");
|
|
}
|
|
for (i = 0; i < MV_IDMA_CHAN_MAX; i++)
|
|
printf("IDMA channel#%d: ap 0x%08x\n", i,
|
|
win_idma_cap_read(base, i));
|
|
printf("IDMA windows: bare 0x%08x\n", win_idma_bare_read(base));
|
|
}
|
|
#else
|
|
|
|
/* Provide dummy functions to satisfy the build for SoCs not equipped with IDMA */
|
|
int
|
|
decode_win_idma_valid(void)
|
|
{
|
|
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
decode_win_idma_setup(u_long base)
|
|
{
|
|
}
|
|
|
|
void
|
|
decode_win_idma_dump(u_long base)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************
|
|
* XOR windows routines
|
|
**************************************************************************/
|
|
#if defined(SOC_MV_KIRKWOOD) || defined(SOC_MV_DISCOVERY)
|
|
static int
|
|
xor_ctrl_read(u_long base, int i, int c, int e)
|
|
{
|
|
uint32_t v;
|
|
v = win_xor_ctrl_read(base, c, e);
|
|
v &= (1 << i);
|
|
|
|
return (v >> i);
|
|
}
|
|
|
|
static void
|
|
xor_ctrl_write(u_long base, int i, int c, int e, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_xor_ctrl_read(base, c, e);
|
|
v &= ~(1 << i);
|
|
v |= (val << i);
|
|
win_xor_ctrl_write(base, c, e, v);
|
|
}
|
|
|
|
/*
|
|
* Set channel protection 'val' for window 'w' on channel 'c'
|
|
*/
|
|
|
|
static void
|
|
xor_chan_write(u_long base, int c, int e, int w, int val)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = win_xor_ctrl_read(base, c, e);
|
|
v &= ~(0x3 << (w * 2 + 16));
|
|
v |= (val << (w * 2 + 16));
|
|
win_xor_ctrl_write(base, c, e, v);
|
|
}
|
|
|
|
/*
|
|
* Set protection 'val' on all channels for window 'w' on engine 'e'
|
|
*/
|
|
static void
|
|
xor_set_prot(u_long base, int w, int e, int val)
|
|
{
|
|
int c;
|
|
|
|
for (c = 0; c < MV_XOR_CHAN_MAX; c++)
|
|
xor_chan_write(base, c, e, w, val);
|
|
}
|
|
|
|
static int
|
|
win_xor_can_remap(int i)
|
|
{
|
|
|
|
/* XOR decode windows 0-3 have remap capability */
|
|
if (i < 4)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
xor_max_eng(void)
|
|
{
|
|
uint32_t dev, rev;
|
|
|
|
soc_id(&dev, &rev);
|
|
if (dev == MV_DEV_88F6281)
|
|
return (2);
|
|
else if ((dev == MV_DEV_MV78100) || (dev == MV_DEV_MV78100_Z0))
|
|
return (1);
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
xor_active_dram(u_long base, int c, int e, int *window)
|
|
{
|
|
uint32_t br, sz;
|
|
int i, m, w;
|
|
|
|
/*
|
|
* Set up access to all active DRAM banks
|
|
*/
|
|
m = xor_max_eng();
|
|
for (i = 0; i < m; i++)
|
|
if (ddr_is_active(i)) {
|
|
br = ddr_base(i) | (ddr_attr(i) << 8) |
|
|
ddr_target(i);
|
|
sz = ((ddr_size(i) - 1) & 0xffff0000);
|
|
|
|
/* Place DDR entries in non-remapped windows */
|
|
for (w = 0; w < MV_WIN_XOR_MAX; w++)
|
|
if (win_xor_can_remap(w) != 1 &&
|
|
(xor_ctrl_read(base, w, c, e) == 0) &&
|
|
w > *window) {
|
|
/* Configure window */
|
|
win_xor_br_write(base, w, e, br);
|
|
win_xor_sz_write(base, w, e, sz);
|
|
|
|
/* Set protection RW on all channels */
|
|
xor_set_prot(base, w, e, 0x3);
|
|
|
|
/* Enable window */
|
|
xor_ctrl_write(base, w, c, e, 1);
|
|
(*window)++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
decode_win_xor_setup(u_long base)
|
|
{
|
|
uint32_t br, sz;
|
|
int i, j, z, e = 1, m, window;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_XOR))
|
|
return;
|
|
|
|
/*
|
|
* Disable and clear all XOR windows, revoke protection for all
|
|
* channels
|
|
*/
|
|
m = xor_max_eng();
|
|
for (j = 0; j < m; j++, e--) {
|
|
|
|
/* Number of non-remaped windows */
|
|
window = MV_XOR_NON_REMAP - 1;
|
|
|
|
for (i = 0; i < MV_WIN_XOR_MAX; i++) {
|
|
win_xor_br_write(base, i, e, 0);
|
|
win_xor_sz_write(base, i, e, 0);
|
|
}
|
|
|
|
if (win_xor_can_remap(i) == 1)
|
|
win_xor_har_write(base, i, e, 0);
|
|
|
|
for (i = 0; i < MV_XOR_CHAN_MAX; i++) {
|
|
win_xor_ctrl_write(base, i, e, 0);
|
|
xor_active_dram(base, i, e, &window);
|
|
}
|
|
|
|
/*
|
|
* Remaining targets -- from a statically defined table
|
|
*/
|
|
for (i = 0; i < xor_wins_no; i++)
|
|
if (xor_wins[i].target > 0) {
|
|
br = (xor_wins[i].base & 0xffff0000) |
|
|
(xor_wins[i].attr << 8) |
|
|
xor_wins[i].target;
|
|
sz = ((xor_wins[i].size - 1) & 0xffff0000);
|
|
|
|
/* Set the first free XOR window */
|
|
for (z = 0; z < MV_WIN_XOR_MAX; z++) {
|
|
if (xor_ctrl_read(base, z, 0, e) &&
|
|
xor_ctrl_read(base, z, 1, e))
|
|
continue;
|
|
|
|
/* Configure window */
|
|
win_xor_br_write(base, z, e, br);
|
|
win_xor_sz_write(base, z, e, sz);
|
|
if (win_xor_can_remap(z) &&
|
|
xor_wins[z].remap >= 0)
|
|
win_xor_har_write(base, z, e,
|
|
xor_wins[z].remap);
|
|
|
|
/* Set protection RW on all channels */
|
|
xor_set_prot(base, z, e, 0x3);
|
|
|
|
/* Enable window */
|
|
xor_ctrl_write(base, z, 0, e, 1);
|
|
xor_ctrl_write(base, z, 1, e, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
decode_win_xor_valid(void)
|
|
{
|
|
const struct decode_win *wintab;
|
|
int c, i, j, rv;
|
|
uint32_t b, e, s;
|
|
|
|
if (xor_wins_no > MV_WIN_XOR_MAX) {
|
|
printf("XOR windows: too many entries: %d\n", xor_wins_no);
|
|
return (0);
|
|
}
|
|
for (i = 0, c = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i))
|
|
c++;
|
|
|
|
if (xor_wins_no > (MV_WIN_XOR_MAX - c)) {
|
|
printf("XOR windows: too many entries: %d, available: %d\n",
|
|
xor_wins_no, MV_WIN_IDMA_MAX - c);
|
|
return (0);
|
|
}
|
|
|
|
wintab = xor_wins;
|
|
rv = 1;
|
|
for (i = 0; i < xor_wins_no; i++, wintab++) {
|
|
|
|
if (wintab->target == 0) {
|
|
printf("XOR window#%d: DDR target window is not "
|
|
"supposed to be reprogrammed!\n", i);
|
|
rv = 0;
|
|
}
|
|
|
|
if (wintab->remap >= 0 && win_cpu_can_remap(i) != 1) {
|
|
printf("XOR window#%d: not capable of remapping, but "
|
|
"val 0x%08x defined\n", i, wintab->remap);
|
|
rv = 0;
|
|
}
|
|
|
|
s = wintab->size;
|
|
b = wintab->base;
|
|
e = b + s - 1;
|
|
if (s > (0xFFFFFFFF - b + 1)) {
|
|
/*
|
|
* XXX this boundary check should account for 64bit
|
|
* and remapping..
|
|
*/
|
|
printf("XOR window#%d: no space for size 0x%08x at "
|
|
"0x%08x\n", i, s, b);
|
|
rv = 0;
|
|
continue;
|
|
}
|
|
|
|
j = decode_win_overlap(i, xor_wins_no, &xor_wins[0]);
|
|
if (j >= 0) {
|
|
printf("XOR window#%d: (0x%08x - 0x%08x) overlaps "
|
|
"with #%d (0x%08x - 0x%08x)\n", i, b, e, j,
|
|
xor_wins[j].base,
|
|
xor_wins[j].base + xor_wins[j].size - 1);
|
|
rv = 0;
|
|
}
|
|
}
|
|
|
|
return (rv);
|
|
}
|
|
|
|
void
|
|
decode_win_xor_dump(u_long base)
|
|
{
|
|
int i, j;
|
|
int e = 1;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_XOR))
|
|
return;
|
|
|
|
for (j = 0; j < xor_max_eng(); j++, e--) {
|
|
for (i = 0; i < MV_WIN_XOR_MAX; i++) {
|
|
printf("XOR window#%d: b 0x%08x, s 0x%08x", i,
|
|
win_xor_br_read(base, i, e), win_xor_sz_read(base, i, e));
|
|
|
|
if (win_xor_can_remap(i))
|
|
printf(", ha 0x%08x", win_xor_har_read(base, i, e));
|
|
|
|
printf("\n");
|
|
}
|
|
for (i = 0; i < MV_XOR_CHAN_MAX; i++)
|
|
printf("XOR control#%d: 0x%08x\n", i,
|
|
win_xor_ctrl_read(base, i, e));
|
|
}
|
|
}
|
|
|
|
#else
|
|
/* Provide dummy functions to satisfy the build for SoCs not equipped with XOR */
|
|
static int
|
|
decode_win_xor_valid(void)
|
|
{
|
|
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
decode_win_xor_setup(u_long base)
|
|
{
|
|
}
|
|
|
|
static void
|
|
decode_win_xor_dump(u_long base)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************
|
|
* CESA TDMA windows routines
|
|
**************************************************************************/
|
|
#if defined(SOC_MV_KIRKWOOD) || defined(SOC_MV_DISCOVERY)
|
|
/*
|
|
* Dump CESA TDMA decode windows.
|
|
*/
|
|
static void
|
|
decode_win_cesa_dump(u_long base)
|
|
{
|
|
int i;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_CRYPTO))
|
|
return;
|
|
|
|
for (i = 0; i < MV_WIN_CESA_MAX; i++)
|
|
printf("CESA window#%d: c 0x%08x, b 0x%08x\n", i,
|
|
win_cesa_cr_read(base, i), win_cesa_br_read(base, i));
|
|
}
|
|
|
|
|
|
/*
|
|
* Set CESA TDMA decode windows.
|
|
*/
|
|
static void
|
|
decode_win_cesa_setup(u_long base)
|
|
{
|
|
uint32_t br, cr;
|
|
int i, j;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_CRYPTO))
|
|
return;
|
|
|
|
/* Disable and clear all CESA windows */
|
|
for (i = 0; i < MV_WIN_CESA_MAX; i++) {
|
|
win_cesa_cr_write(base, i, 0);
|
|
win_cesa_br_write(base, i, 0);
|
|
}
|
|
|
|
/* Only access to active DRAM banks is required. */
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i)) {
|
|
br = ddr_base(i);
|
|
cr = (((ddr_size(i) - 1) & 0xffff0000) |
|
|
(ddr_attr(i) << 8) | (ddr_target(i) << 4) | 1);
|
|
|
|
/* Set the first available CESA window */
|
|
for (j = 0; j < MV_WIN_CESA_MAX; j++) {
|
|
if (win_cesa_cr_read(base, j) & 0x1)
|
|
continue;
|
|
|
|
win_cesa_br_write(base, j, br);
|
|
win_cesa_cr_write(base, j, cr);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check CESA TDMA decode windows.
|
|
*/
|
|
static int
|
|
decode_win_cesa_valid(void)
|
|
{
|
|
|
|
return (decode_win_can_cover_ddr(MV_WIN_CESA_MAX));
|
|
}
|
|
#else
|
|
|
|
/*
|
|
* Provide dummy functions to satisfy the build for SoCs not equipped with
|
|
* CESA
|
|
*/
|
|
|
|
static int
|
|
decode_win_cesa_valid(void)
|
|
{
|
|
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
decode_win_cesa_setup(u_long base)
|
|
{
|
|
}
|
|
|
|
static void
|
|
decode_win_cesa_dump(u_long base)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************
|
|
* SATA windows routines
|
|
**************************************************************************/
|
|
static void
|
|
decode_win_sata_setup(u_long base)
|
|
{
|
|
uint32_t cr, br;
|
|
int i, j;
|
|
|
|
if (pm_is_disabled(CPU_PM_CTRL_SATA))
|
|
return;
|
|
|
|
for (i = 0; i < MV_WIN_SATA_MAX; i++) {
|
|
win_sata_cr_write(base, i, 0);
|
|
win_sata_br_write(base, i, 0);
|
|
}
|
|
|
|
for (i = 0; i < MV_WIN_DDR_MAX; i++)
|
|
if (ddr_is_active(i)) {
|
|
cr = ((ddr_size(i) - 1) & 0xffff0000) |
|
|
(ddr_attr(i) << 8) | (ddr_target(i) << 4) | 1;
|
|
br = ddr_base(i);
|
|
|
|
/* Use the first available SATA window */
|
|
for (j = 0; j < MV_WIN_SATA_MAX; j++) {
|
|
if ((win_sata_cr_read(base, j) & 1) != 0)
|
|
continue;
|
|
|
|
win_sata_br_write(base, j, br);
|
|
win_sata_cr_write(base, j, cr);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
decode_win_sata_valid(void)
|
|
{
|
|
uint32_t dev, rev;
|
|
|
|
soc_id(&dev, &rev);
|
|
if (dev == MV_DEV_88F5281)
|
|
return (1);
|
|
|
|
return (decode_win_can_cover_ddr(MV_WIN_SATA_MAX));
|
|
}
|
|
|
|
/**************************************************************************
|
|
* FDT parsing routines.
|
|
**************************************************************************/
|
|
|
|
static int
|
|
fdt_get_ranges(const char *nodename, void *buf, int size, int *tuples,
|
|
int *tuplesize)
|
|
{
|
|
phandle_t node;
|
|
pcell_t addr_cells, par_addr_cells, size_cells;
|
|
int len, tuple_size, tuples_count;
|
|
|
|
node = OF_finddevice(nodename);
|
|
if (node == -1)
|
|
return (EINVAL);
|
|
|
|
if ((fdt_addrsize_cells(node, &addr_cells, &size_cells)) != 0)
|
|
return (ENXIO);
|
|
|
|
par_addr_cells = fdt_parent_addr_cells(node);
|
|
if (par_addr_cells > 2)
|
|
return (ERANGE);
|
|
|
|
tuple_size = sizeof(pcell_t) * (addr_cells + par_addr_cells +
|
|
size_cells);
|
|
|
|
/* Note the OF_getprop_alloc() cannot be used at this early stage. */
|
|
len = OF_getprop(node, "ranges", buf, size);
|
|
|
|
/*
|
|
* XXX this does not handle the empty 'ranges;' case, which is
|
|
* legitimate and should be allowed.
|
|
*/
|
|
tuples_count = len / tuple_size;
|
|
if (tuples_count <= 0)
|
|
return (ERANGE);
|
|
|
|
if (fdt_ranges_verify(buf, tuples_count, par_addr_cells,
|
|
addr_cells, size_cells) != 0)
|
|
return (ERANGE);
|
|
|
|
*tuples = tuples_count;
|
|
*tuplesize = tuple_size;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
win_cpu_from_dt(void)
|
|
{
|
|
pcell_t ranges[48];
|
|
u_long sram_base, sram_size;
|
|
phandle_t node;
|
|
int i, entry_size, err, t, tuple_size, tuples;
|
|
|
|
/* Retrieve 'ranges' property of '/localbus' node. */
|
|
if ((err = fdt_get_ranges("/localbus", ranges, sizeof(ranges),
|
|
&tuples, &tuple_size)) != 0)
|
|
return (err);
|
|
|
|
/*
|
|
* Fill CPU decode windows table.
|
|
*/
|
|
bzero((void *)&cpu_win_tbl, sizeof(cpu_win_tbl));
|
|
|
|
entry_size = tuple_size / sizeof(pcell_t);
|
|
cpu_wins_no = tuples;
|
|
|
|
for (i = 0, t = 0; t < tuples; i += entry_size, t++) {
|
|
cpu_win_tbl[t].target = 1;
|
|
cpu_win_tbl[t].attr = fdt32_to_cpu(ranges[i + 1]);
|
|
cpu_win_tbl[t].base = fdt32_to_cpu(ranges[i + 2]);
|
|
cpu_win_tbl[t].size = fdt32_to_cpu(ranges[i + 3]);
|
|
cpu_win_tbl[t].remap = -1;
|
|
debugf("target = 0x%0x attr = 0x%0x base = 0x%0x "
|
|
"size = 0x%0x remap = %d\n", cpu_win_tbl[t].target,
|
|
cpu_win_tbl[t].attr, cpu_win_tbl[t].base,
|
|
cpu_win_tbl[t].size, cpu_win_tbl[t].remap);
|
|
}
|
|
|
|
/*
|
|
* Retrieve CESA SRAM data.
|
|
*/
|
|
if ((node = OF_finddevice("sram")) != -1)
|
|
if (fdt_is_compatible(node, "mrvl,cesa-sram"))
|
|
goto moveon;
|
|
|
|
if ((node = OF_finddevice("/")) != -1)
|
|
return (ENXIO);
|
|
|
|
if ((node = fdt_find_compatible(node, "mrvl,cesa-sram", 0)) == 0)
|
|
/* SRAM block is not always present. */
|
|
return (0);
|
|
moveon:
|
|
sram_base = sram_size = 0;
|
|
if (fdt_regsize(node, &sram_base, &sram_size) != 0)
|
|
return (EINVAL);
|
|
|
|
cpu_win_tbl[++t].target = MV_WIN_CESA_TARGET;
|
|
cpu_win_tbl[t].attr = MV_WIN_CESA_ATTR;
|
|
cpu_win_tbl[t].base = sram_base;
|
|
cpu_win_tbl[t].size = sram_size;
|
|
cpu_win_tbl[t].remap = -1;
|
|
debugf("sram: base = 0x%0lx size = 0x%0lx\n", sram_base, sram_size);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
fdt_win_setup(void)
|
|
{
|
|
phandle_t node, child;
|
|
struct soc_node_spec *soc_node;
|
|
u_long size, base;
|
|
int err, i;
|
|
|
|
node = OF_finddevice("/");
|
|
if (node == -1)
|
|
panic("fdt_win_setup: no root node");
|
|
|
|
node = fdt_find_compatible(node, "simple-bus", 1);
|
|
if (node == 0)
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* Traverse through all children of simple-bus node, and retrieve
|
|
* decode windows data for devices (if applicable).
|
|
*/
|
|
for (child = OF_child(node); child != 0; child = OF_peer(child))
|
|
for (i = 0; soc_nodes[i].compat != NULL; i++) {
|
|
|
|
soc_node = &soc_nodes[i];
|
|
|
|
if (!fdt_is_compatible(child, soc_node->compat))
|
|
continue;
|
|
|
|
err = fdt_regsize(child, &base, &size);
|
|
if (err != 0)
|
|
return (err);
|
|
|
|
base += fdt_immr_va;
|
|
if (soc_node->decode_handler != NULL)
|
|
soc_node->decode_handler(base);
|
|
else
|
|
return (ENXIO);
|
|
|
|
if (MV_DUMP_WIN && (soc_node->dump_handler != NULL))
|
|
soc_node->dump_handler(base);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
fdt_fixup_busfreq(phandle_t root)
|
|
{
|
|
phandle_t sb;
|
|
pcell_t freq;
|
|
|
|
/*
|
|
* This fixup sets the simple-bus bus-frequency property.
|
|
*/
|
|
|
|
if ((sb = fdt_find_compatible(root, "simple-bus", 1)) == 0)
|
|
return;
|
|
|
|
freq = cpu_to_fdt32(get_tclk());
|
|
OF_setprop(sb, "bus-frequency", (void *)&freq, sizeof(freq));
|
|
}
|
|
|
|
struct fdt_fixup_entry fdt_fixup_table[] = {
|
|
{ "mrvl,DB-88F6281", &fdt_fixup_busfreq },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
static int
|
|
fdt_pic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
|
|
int *pol)
|
|
{
|
|
|
|
if (!fdt_is_compatible(node, "mrvl,pic"))
|
|
return (ENXIO);
|
|
|
|
*interrupt = fdt32_to_cpu(intr[0]);
|
|
*trig = INTR_TRIGGER_CONFORM;
|
|
*pol = INTR_POLARITY_CONFORM;
|
|
|
|
return (0);
|
|
}
|
|
|
|
fdt_pic_decode_t fdt_pic_table[] = {
|
|
&fdt_pic_decode_ic,
|
|
NULL
|
|
};
|