ixp4xx-npe.c (bc4d7eafb7ad590f546b58c40cd7856990fbb303) ixp4xx-npe.c (0b458d7b10f83eb34b84957e6cf47cee2a97bc49)
1/*
2 * Intel IXP4xx Network Processor Engine driver for Linux
3 *
4 * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License
8 * as published by the Free Software Foundation.

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150 { ECS_DBG_CTXT_REG_1, 0x00000000 },
151 { ECS_DBG_CTXT_REG_2, 0x001E0000 },
152 { ECS_INSTRUCT_REG, 0x1003C00F },
153};
154
155static struct npe npe_tab[NPE_COUNT] = {
156 {
157 .id = 0,
1/*
2 * Intel IXP4xx Network Processor Engine driver for Linux
3 *
4 * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License
8 * as published by the Free Software Foundation.

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150 { ECS_DBG_CTXT_REG_1, 0x00000000 },
151 { ECS_DBG_CTXT_REG_2, 0x001E0000 },
152 { ECS_INSTRUCT_REG, 0x1003C00F },
153};
154
155static struct npe npe_tab[NPE_COUNT] = {
156 {
157 .id = 0,
158 .regs = (struct npe_regs __iomem *)IXP4XX_NPEA_BASE_VIRT,
159 .regs_phys = IXP4XX_NPEA_BASE_PHYS,
160 }, {
161 .id = 1,
158 }, {
159 .id = 1,
162 .regs = (struct npe_regs __iomem *)IXP4XX_NPEB_BASE_VIRT,
163 .regs_phys = IXP4XX_NPEB_BASE_PHYS,
164 }, {
165 .id = 2,
160 }, {
161 .id = 2,
166 .regs = (struct npe_regs __iomem *)IXP4XX_NPEC_BASE_VIRT,
167 .regs_phys = IXP4XX_NPEC_BASE_PHYS,
168 }
169};
170
171int npe_running(struct npe *npe)
172{
173 return (__raw_readl(&npe->regs->exec_status_cmd) & STAT_RUN) != 0;
174}
175

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682void npe_release(struct npe *npe)
683{
684 module_put(THIS_MODULE);
685}
686
687static int ixp4xx_npe_probe(struct platform_device *pdev)
688{
689 int i, found = 0;
162 }
163};
164
165int npe_running(struct npe *npe)
166{
167 return (__raw_readl(&npe->regs->exec_status_cmd) & STAT_RUN) != 0;
168}
169

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676void npe_release(struct npe *npe)
677{
678 module_put(THIS_MODULE);
679}
680
681static int ixp4xx_npe_probe(struct platform_device *pdev)
682{
683 int i, found = 0;
684 struct device *dev = &pdev->dev;
685 struct resource *res;
690
691 for (i = 0; i < NPE_COUNT; i++) {
692 struct npe *npe = &npe_tab[i];
686
687 for (i = 0; i < NPE_COUNT; i++) {
688 struct npe *npe = &npe_tab[i];
689
690 res = platform_get_resource(pdev, IORESOURCE_MEM, i);
691 if (!res)
692 return -ENODEV;
693
693 if (!(ixp4xx_read_feature_bits() &
694 if (!(ixp4xx_read_feature_bits() &
694 (IXP4XX_FEATURE_RESET_NPEA << i)))
695 (IXP4XX_FEATURE_RESET_NPEA << i))) {
696 dev_info(dev, "NPE%d at 0x%08x-0x%08x not available\n",
697 i, res->start, res->end);
695 continue; /* NPE already disabled or not present */
698 continue; /* NPE already disabled or not present */
696 if (!(npe->mem_res = request_mem_region(npe->regs_phys,
697 REGS_SIZE,
698 npe_name(npe)))) {
699 print_npe(KERN_ERR, npe,
700 "failed to request memory region\n");
701 continue;
702 }
699 }
700 npe->regs = devm_ioremap_resource(dev, res);
701 if (!npe->regs)
702 return -ENOMEM;
703
703
704 if (npe_reset(npe))
704 if (npe_reset(npe)) {
705 dev_info(dev, "NPE%d at 0x%08x-0x%08x does not reset\n",
706 i, res->start, res->end);
705 continue;
707 continue;
708 }
706 npe->valid = 1;
709 npe->valid = 1;
710 dev_info(dev, "NPE%d at 0x%08x-0x%08x registered\n",
711 i, res->start, res->end);
707 found++;
708 }
709
710 if (!found)
711 return -ENODEV;
712 return 0;
713}
714
715static int ixp4xx_npe_remove(struct platform_device *pdev)
716{
717 int i;
718
719 for (i = 0; i < NPE_COUNT; i++)
712 found++;
713 }
714
715 if (!found)
716 return -ENODEV;
717 return 0;
718}
719
720static int ixp4xx_npe_remove(struct platform_device *pdev)
721{
722 int i;
723
724 for (i = 0; i < NPE_COUNT; i++)
720 if (npe_tab[i].mem_res) {
725 if (npe_tab[i].regs) {
721 npe_reset(&npe_tab[i]);
726 npe_reset(&npe_tab[i]);
722 release_resource(npe_tab[i].mem_res);
723 }
724
725 return 0;
726}
727
728static struct platform_driver ixp4xx_npe_driver = {
729 .driver = {
730 .name = "ixp4xx-npe",

--- 20 unchanged lines hidden --- 		727 }
728
729 return 0;
730}
731
732static struct platform_driver ixp4xx_npe_driver = {
733 .driver = {
734 .name = "ixp4xx-npe",

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