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Soc patches for mvebu for v3.20, part #2.
Note these depend on mvebu-fixes-3.19-4, which in turn depends on v3.19-rc4. bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window bus: mvebu-mbus: fix support of MBus window 13 on Armada XP/375/38x ARM: mvebu: use arm_coherent_dma_ops and re-enable hardware I/O coherency bus: mvebu-mbus: use automatic I/O synchronization barriers -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABCAAGBQJUwDYpAAoJEOa/DcumaUyEz8UP/RMj8w8R+xWJbrmo6/NiC0vb SSYjxMtAMMAi9gwrAHRT9nUuyIbwVEUAr2XF7VF9rfEPbZ3IUENRe0KT1EaRQ7G2 e8C4EVJCMx6s6qVeXYEW+xlYg9ygnC2FdeapFlbmdhFGyV3v4yinpC7U2XG31TfU iHnDu8meeqwxnXjk29OFn7MOlUn52uovExLaKi3iYuFISVDgnl8vxh/YXlFlilkV 6ELCOwaaH1i+ys+27/TtagiP0pl7x30rVTBqClrg0+iPM9KaOgmc6uPvMo6HeXST i4lRE1Wrcd9KrZdBPicraUKcZTzjY1YeJOC0chQRbrwFBGxFFbcFpl7kljiendjY Yic46cGzjhKp138t9xLebsQVSgqJg/a5xQb3dP7XfcKYODBi+hFVPBFn/ICa/Lv1 NfSnvwh3ZpxcbgfdX3CWBERP6W3/Mbj2fbjeT5sJj6lQMqKjLFduOty74CwfLefi wu3Xm6FEOh+f7oyjtRbn3aWv45Eyp3g/NVE9S1KLl5c6S5Epj/9s47aSatgKbzSt jEl4MoWkFhEccaiMDeAtKiNrnTiDlbaDFpLUBkDp5Zaqb50qG+mJqtSnawzUrpCK V4ql7n4EKZp+qZRl5YwmX97oN1tqu8IrkghUCtIDgUzIMdu2Bc400GCYLjdeRGSJ zebFAxpOBqS9gPfDbuTF =Bkue -----END PGP SIGNATURE----- Merge tag 'mvebu-soc-3.20-2' of git://git.infradead.org/linux-mvebu into next/soc Merge "mvebu/soc #2" from Andrew Lunn: Soc patches for mvebu for v3.20, part #2. * tag 'mvebu-soc-3.20-2' of git://git.infradead.org/linux-mvebu: bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window bus: mvebu-mbus: fix support of MBus window 13 on Armada XP/375/38x ARM: mvebu: use arm_coherent_dma_ops and re-enable hardware I/O coherency bus: mvebu-mbus: use automatic I/O synchronization barriers bus: mvebu-mbus: fix support of MBus window 13 ARM: mvebu: completely disable hardware I/O coherency Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
commit
8a333cc7be
@ -33,6 +33,7 @@
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#include <asm/smp_plat.h>
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#include <asm/cacheflush.h>
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#include <asm/mach/map.h>
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#include <asm/dma-mapping.h>
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#include "coherency.h"
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#include "mvebu-soc-id.h"
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@ -76,54 +77,6 @@ int set_cpu_coherent(void)
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return ll_enable_coherency();
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}
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static inline void mvebu_hwcc_sync_io_barrier(void)
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{
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writel(0x1, coherency_cpu_base + IO_SYNC_BARRIER_CTL_OFFSET);
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while (readl(coherency_cpu_base + IO_SYNC_BARRIER_CTL_OFFSET) & 0x1);
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}
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static dma_addr_t mvebu_hwcc_dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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if (dir != DMA_TO_DEVICE)
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mvebu_hwcc_sync_io_barrier();
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return pfn_to_dma(dev, page_to_pfn(page)) + offset;
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}
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static void mvebu_hwcc_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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if (dir != DMA_TO_DEVICE)
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mvebu_hwcc_sync_io_barrier();
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}
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static void mvebu_hwcc_dma_sync(struct device *dev, dma_addr_t dma_handle,
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size_t size, enum dma_data_direction dir)
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{
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if (dir != DMA_TO_DEVICE)
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mvebu_hwcc_sync_io_barrier();
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}
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static struct dma_map_ops mvebu_hwcc_dma_ops = {
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.alloc = arm_dma_alloc,
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.free = arm_dma_free,
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.mmap = arm_dma_mmap,
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.map_page = mvebu_hwcc_dma_map_page,
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.unmap_page = mvebu_hwcc_dma_unmap_page,
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.get_sgtable = arm_dma_get_sgtable,
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.map_sg = arm_dma_map_sg,
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.unmap_sg = arm_dma_unmap_sg,
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.sync_single_for_cpu = mvebu_hwcc_dma_sync,
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.sync_single_for_device = mvebu_hwcc_dma_sync,
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.sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
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.sync_sg_for_device = arm_dma_sync_sg_for_device,
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.set_dma_mask = arm_dma_set_mask,
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};
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static int mvebu_hwcc_notifier(struct notifier_block *nb,
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unsigned long event, void *__dev)
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{
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@ -131,7 +84,7 @@ static int mvebu_hwcc_notifier(struct notifier_block *nb,
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if (event != BUS_NOTIFY_ADD_DEVICE)
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return NOTIFY_DONE;
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set_dma_ops(dev, &mvebu_hwcc_dma_ops);
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set_dma_ops(dev, &arm_coherent_dma_ops);
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return NOTIFY_OK;
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}
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@ -58,6 +58,7 @@
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#include <linux/debugfs.h>
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#include <linux/log2.h>
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#include <linux/syscore_ops.h>
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#include <linux/memblock.h>
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/*
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* DDR target is the same on all platforms.
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@ -69,6 +70,7 @@
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*/
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#define WIN_CTRL_OFF 0x0000
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#define WIN_CTRL_ENABLE BIT(0)
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#define WIN_CTRL_SYNCBARRIER BIT(1)
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#define WIN_CTRL_TGT_MASK 0xf0
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#define WIN_CTRL_TGT_SHIFT 4
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#define WIN_CTRL_ATTR_MASK 0xff00
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@ -82,6 +84,9 @@
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#define WIN_REMAP_LOW 0xffff0000
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#define WIN_REMAP_HI_OFF 0x000c
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#define UNIT_SYNC_BARRIER_OFF 0x84
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#define UNIT_SYNC_BARRIER_ALL 0xFFFF
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#define ATTR_HW_COHERENCY (0x1 << 4)
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#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3))
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@ -97,7 +102,9 @@
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/* Relative to mbusbridge_base */
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#define MBUS_BRIDGE_CTRL_OFF 0x0
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#define MBUS_BRIDGE_SIZE_MASK 0xffff0000
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#define MBUS_BRIDGE_BASE_OFF 0x4
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#define MBUS_BRIDGE_BASE_MASK 0xffff0000
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/* Maximum number of windows, for all known platforms */
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#define MBUS_WINS_MAX 20
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@ -106,9 +113,9 @@ struct mvebu_mbus_state;
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struct mvebu_mbus_soc_data {
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unsigned int num_wins;
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unsigned int num_remappable_wins;
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bool has_mbus_bridge;
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unsigned int (*win_cfg_offset)(const int win);
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unsigned int (*win_remap_offset)(const int win);
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void (*setup_cpu_target)(struct mvebu_mbus_state *s);
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int (*save_cpu_target)(struct mvebu_mbus_state *s,
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u32 *store_addr);
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@ -154,6 +161,13 @@ const struct mbus_dram_target_info *mv_mbus_dram_info(void)
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}
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EXPORT_SYMBOL_GPL(mv_mbus_dram_info);
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/* Checks whether the given window has remap capability */
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static bool mvebu_mbus_window_is_remappable(struct mvebu_mbus_state *mbus,
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const int win)
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{
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return mbus->soc->win_remap_offset(win) != MVEBU_MBUS_NO_REMAP;
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}
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/*
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* Functions to manipulate the address decoding windows
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*/
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@ -185,9 +199,12 @@ static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus,
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*attr = (ctrlreg & WIN_CTRL_ATTR_MASK) >> WIN_CTRL_ATTR_SHIFT;
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if (remap) {
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if (win < mbus->soc->num_remappable_wins) {
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u32 remap_low = readl(addr + WIN_REMAP_LO_OFF);
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u32 remap_hi = readl(addr + WIN_REMAP_HI_OFF);
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if (mvebu_mbus_window_is_remappable(mbus, win)) {
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u32 remap_low, remap_hi;
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void __iomem *addr_rmp = mbus->mbuswins_base +
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mbus->soc->win_remap_offset(win);
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remap_low = readl(addr_rmp + WIN_REMAP_LO_OFF);
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remap_hi = readl(addr_rmp + WIN_REMAP_HI_OFF);
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*remap = ((u64)remap_hi << 32) | remap_low;
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} else
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*remap = 0;
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@ -200,22 +217,25 @@ static void mvebu_mbus_disable_window(struct mvebu_mbus_state *mbus,
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void __iomem *addr;
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addr = mbus->mbuswins_base + mbus->soc->win_cfg_offset(win);
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writel(0, addr + WIN_BASE_OFF);
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writel(0, addr + WIN_CTRL_OFF);
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if (win < mbus->soc->num_remappable_wins) {
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if (mvebu_mbus_window_is_remappable(mbus, win)) {
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addr = mbus->mbuswins_base + mbus->soc->win_remap_offset(win);
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writel(0, addr + WIN_REMAP_LO_OFF);
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writel(0, addr + WIN_REMAP_HI_OFF);
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}
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}
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/* Checks whether the given window number is available */
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static int mvebu_mbus_window_is_free(struct mvebu_mbus_state *mbus,
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const int win)
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{
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void __iomem *addr = mbus->mbuswins_base +
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mbus->soc->win_cfg_offset(win);
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u32 ctrl = readl(addr + WIN_CTRL_OFF);
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return !(ctrl & WIN_CTRL_ENABLE);
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}
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@ -303,17 +323,22 @@ static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus,
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ctrl = ((size - 1) & WIN_CTRL_SIZE_MASK) |
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(attr << WIN_CTRL_ATTR_SHIFT) |
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(target << WIN_CTRL_TGT_SHIFT) |
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WIN_CTRL_SYNCBARRIER |
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WIN_CTRL_ENABLE;
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writel(base & WIN_BASE_LOW, addr + WIN_BASE_OFF);
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writel(ctrl, addr + WIN_CTRL_OFF);
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if (win < mbus->soc->num_remappable_wins) {
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if (mvebu_mbus_window_is_remappable(mbus, win)) {
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void __iomem *addr_rmp = mbus->mbuswins_base +
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mbus->soc->win_remap_offset(win);
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if (remap == MVEBU_MBUS_NO_REMAP)
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remap_addr = base;
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else
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remap_addr = remap;
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writel(remap_addr & WIN_REMAP_LOW, addr + WIN_REMAP_LO_OFF);
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writel(0, addr + WIN_REMAP_HI_OFF);
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writel(remap_addr & WIN_REMAP_LOW, addr_rmp + WIN_REMAP_LO_OFF);
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writel(0, addr_rmp + WIN_REMAP_HI_OFF);
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}
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return 0;
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@ -327,19 +352,27 @@ static int mvebu_mbus_alloc_window(struct mvebu_mbus_state *mbus,
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int win;
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if (remap == MVEBU_MBUS_NO_REMAP) {
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for (win = mbus->soc->num_remappable_wins;
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win < mbus->soc->num_wins; win++)
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for (win = 0; win < mbus->soc->num_wins; win++) {
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if (mvebu_mbus_window_is_remappable(mbus, win))
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continue;
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if (mvebu_mbus_window_is_free(mbus, win))
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return mvebu_mbus_setup_window(mbus, win, base,
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size, remap,
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target, attr);
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}
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}
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for (win = 0; win < mbus->soc->num_wins; win++) {
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/* Skip window if need remap but is not supported */
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if ((remap != MVEBU_MBUS_NO_REMAP) &&
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!mvebu_mbus_window_is_remappable(mbus, win))
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continue;
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for (win = 0; win < mbus->soc->num_wins; win++)
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if (mvebu_mbus_window_is_free(mbus, win))
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return mvebu_mbus_setup_window(mbus, win, base, size,
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remap, target, attr);
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}
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return -ENOMEM;
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}
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@ -451,7 +484,7 @@ static int mvebu_devs_debug_show(struct seq_file *seq, void *v)
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((wbase & (u64)(wsize - 1)) != 0))
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seq_puts(seq, " (Invalid base/size!!)");
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if (win < mbus->soc->num_remappable_wins) {
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if (mvebu_mbus_window_is_remappable(mbus, win)) {
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seq_printf(seq, " (remap %016llx)\n",
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(unsigned long long)wremap);
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} else
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@ -477,12 +510,12 @@ static const struct file_operations mvebu_devs_debug_fops = {
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* SoC-specific functions and definitions
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*/
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static unsigned int orion_mbus_win_offset(int win)
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static unsigned int generic_mbus_win_cfg_offset(int win)
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{
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return win << 4;
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}
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static unsigned int armada_370_xp_mbus_win_offset(int win)
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static unsigned int armada_370_xp_mbus_win_cfg_offset(int win)
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{
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/* The register layout is a bit annoying and the below code
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* tries to cope with it.
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@ -502,7 +535,7 @@ static unsigned int armada_370_xp_mbus_win_offset(int win)
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return 0x90 + ((win - 8) << 3);
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}
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static unsigned int mv78xx0_mbus_win_offset(int win)
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static unsigned int mv78xx0_mbus_win_cfg_offset(int win)
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{
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if (win < 8)
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return win << 4;
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@ -510,36 +543,140 @@ static unsigned int mv78xx0_mbus_win_offset(int win)
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return 0x900 + ((win - 8) << 4);
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}
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static unsigned int generic_mbus_win_remap_2_offset(int win)
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{
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if (win < 2)
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return generic_mbus_win_cfg_offset(win);
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else
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return MVEBU_MBUS_NO_REMAP;
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}
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static unsigned int generic_mbus_win_remap_4_offset(int win)
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{
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if (win < 4)
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return generic_mbus_win_cfg_offset(win);
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else
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return MVEBU_MBUS_NO_REMAP;
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}
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static unsigned int generic_mbus_win_remap_8_offset(int win)
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{
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if (win < 8)
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return generic_mbus_win_cfg_offset(win);
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else
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return MVEBU_MBUS_NO_REMAP;
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}
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|
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static unsigned int armada_xp_mbus_win_remap_offset(int win)
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{
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if (win < 8)
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return generic_mbus_win_cfg_offset(win);
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else if (win == 13)
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return 0xF0 - WIN_REMAP_LO_OFF;
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else
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return MVEBU_MBUS_NO_REMAP;
|
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}
|
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|
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/*
|
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* Use the memblock information to find the MBus bridge hole in the
|
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* physical address space.
|
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*/
|
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static void __init
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mvebu_mbus_find_bridge_hole(uint64_t *start, uint64_t *end)
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{
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struct memblock_region *r;
|
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uint64_t s = 0;
|
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|
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for_each_memblock(memory, r) {
|
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/*
|
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* This part of the memory is above 4 GB, so we don't
|
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* care for the MBus bridge hole.
|
||||
*/
|
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if (r->base >= 0x100000000)
|
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continue;
|
||||
|
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/*
|
||||
* The MBus bridge hole is at the end of the RAM under
|
||||
* the 4 GB limit.
|
||||
*/
|
||||
if (r->base + r->size > s)
|
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s = r->base + r->size;
|
||||
}
|
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|
||||
*start = s;
|
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*end = 0x100000000;
|
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}
|
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|
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static void __init
|
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mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
|
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{
|
||||
int i;
|
||||
int cs;
|
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uint64_t mbus_bridge_base, mbus_bridge_end;
|
||||
|
||||
mvebu_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
|
||||
|
||||
mvebu_mbus_find_bridge_hole(&mbus_bridge_base, &mbus_bridge_end);
|
||||
|
||||
for (i = 0, cs = 0; i < 4; i++) {
|
||||
u32 base = readl(mbus->sdramwins_base + DDR_BASE_CS_OFF(i));
|
||||
u32 size = readl(mbus->sdramwins_base + DDR_SIZE_CS_OFF(i));
|
||||
u64 base = readl(mbus->sdramwins_base + DDR_BASE_CS_OFF(i));
|
||||
u64 size = readl(mbus->sdramwins_base + DDR_SIZE_CS_OFF(i));
|
||||
u64 end;
|
||||
struct mbus_dram_window *w;
|
||||
|
||||
/* Ignore entries that are not enabled */
|
||||
if (!(size & DDR_SIZE_ENABLED))
|
||||
continue;
|
||||
|
||||
/*
|
||||
* We only take care of entries for which the chip
|
||||
* select is enabled, and that don't have high base
|
||||
* address bits set (devices can only access the first
|
||||
* 32 bits of the memory).
|
||||
* Ignore entries whose base address is above 2^32,
|
||||
* since devices cannot DMA to such high addresses
|
||||
*/
|
||||
if ((size & DDR_SIZE_ENABLED) &&
|
||||
!(base & DDR_BASE_CS_HIGH_MASK)) {
|
||||
struct mbus_dram_window *w;
|
||||
if (base & DDR_BASE_CS_HIGH_MASK)
|
||||
continue;
|
||||
|
||||
w = &mvebu_mbus_dram_info.cs[cs++];
|
||||
w->cs_index = i;
|
||||
w->mbus_attr = 0xf & ~(1 << i);
|
||||
if (mbus->hw_io_coherency)
|
||||
w->mbus_attr |= ATTR_HW_COHERENCY;
|
||||
w->base = base & DDR_BASE_CS_LOW_MASK;
|
||||
w->size = (size | ~DDR_SIZE_MASK) + 1;
|
||||
base = base & DDR_BASE_CS_LOW_MASK;
|
||||
size = (size | ~DDR_SIZE_MASK) + 1;
|
||||
end = base + size;
|
||||
|
||||
/*
|
||||
* Adjust base/size of the current CS to make sure it
|
||||
* doesn't overlap with the MBus bridge hole. This is
|
||||
* particularly important for devices that do DMA from
|
||||
* DRAM to a SRAM mapped in a MBus window, such as the
|
||||
* CESA cryptographic engine.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The CS is fully enclosed inside the MBus bridge
|
||||
* area, so ignore it.
|
||||
*/
|
||||
if (base >= mbus_bridge_base && end <= mbus_bridge_end)
|
||||
continue;
|
||||
|
||||
/*
|
||||
* Beginning of CS overlaps with end of MBus, raise CS
|
||||
* base address, and shrink its size.
|
||||
*/
|
||||
if (base >= mbus_bridge_base && end > mbus_bridge_end) {
|
||||
size -= mbus_bridge_end - base;
|
||||
base = mbus_bridge_end;
|
||||
}
|
||||
|
||||
/*
|
||||
* End of CS overlaps with beginning of MBus, shrink
|
||||
* CS size.
|
||||
*/
|
||||
if (base < mbus_bridge_base && end > mbus_bridge_base)
|
||||
size -= end - mbus_bridge_base;
|
||||
|
||||
w = &mvebu_mbus_dram_info.cs[cs++];
|
||||
w->cs_index = i;
|
||||
w->mbus_attr = 0xf & ~(1 << i);
|
||||
if (mbus->hw_io_coherency)
|
||||
w->mbus_attr |= ATTR_HW_COHERENCY;
|
||||
w->base = base;
|
||||
w->size = size;
|
||||
}
|
||||
mvebu_mbus_dram_info.num_cs = cs;
|
||||
}
|
||||
@ -619,30 +756,40 @@ int mvebu_mbus_save_cpu_target(u32 *store_addr)
|
||||
return mbus_state.soc->save_cpu_target(&mbus_state, store_addr);
|
||||
}
|
||||
|
||||
static const struct mvebu_mbus_soc_data armada_370_xp_mbus_data = {
|
||||
static const struct mvebu_mbus_soc_data armada_370_mbus_data = {
|
||||
.num_wins = 20,
|
||||
.num_remappable_wins = 8,
|
||||
.has_mbus_bridge = true,
|
||||
.win_cfg_offset = armada_370_xp_mbus_win_offset,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
.win_cfg_offset = armada_370_xp_mbus_win_cfg_offset,
|
||||
.win_remap_offset = generic_mbus_win_remap_8_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
};
|
||||
|
||||
static const struct mvebu_mbus_soc_data armada_xp_mbus_data = {
|
||||
.num_wins = 20,
|
||||
.has_mbus_bridge = true,
|
||||
.win_cfg_offset = armada_370_xp_mbus_win_cfg_offset,
|
||||
.win_remap_offset = armada_xp_mbus_win_remap_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
};
|
||||
|
||||
static const struct mvebu_mbus_soc_data kirkwood_mbus_data = {
|
||||
.num_wins = 8,
|
||||
.num_remappable_wins = 4,
|
||||
.win_cfg_offset = orion_mbus_win_offset,
|
||||
.win_cfg_offset = generic_mbus_win_cfg_offset,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
.win_remap_offset = generic_mbus_win_remap_4_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
};
|
||||
|
||||
static const struct mvebu_mbus_soc_data dove_mbus_data = {
|
||||
.num_wins = 8,
|
||||
.num_remappable_wins = 4,
|
||||
.win_cfg_offset = orion_mbus_win_offset,
|
||||
.win_cfg_offset = generic_mbus_win_cfg_offset,
|
||||
.save_cpu_target = mvebu_mbus_dove_save_cpu_target,
|
||||
.win_remap_offset = generic_mbus_win_remap_4_offset,
|
||||
.setup_cpu_target = mvebu_mbus_dove_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_dove,
|
||||
};
|
||||
@ -653,36 +800,40 @@ static const struct mvebu_mbus_soc_data dove_mbus_data = {
|
||||
*/
|
||||
static const struct mvebu_mbus_soc_data orion5x_4win_mbus_data = {
|
||||
.num_wins = 8,
|
||||
.num_remappable_wins = 4,
|
||||
.win_cfg_offset = orion_mbus_win_offset,
|
||||
.win_cfg_offset = generic_mbus_win_cfg_offset,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
.win_remap_offset = generic_mbus_win_remap_4_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
};
|
||||
|
||||
static const struct mvebu_mbus_soc_data orion5x_2win_mbus_data = {
|
||||
.num_wins = 8,
|
||||
.num_remappable_wins = 2,
|
||||
.win_cfg_offset = orion_mbus_win_offset,
|
||||
.win_cfg_offset = generic_mbus_win_cfg_offset,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
.win_remap_offset = generic_mbus_win_remap_2_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
};
|
||||
|
||||
static const struct mvebu_mbus_soc_data mv78xx0_mbus_data = {
|
||||
.num_wins = 14,
|
||||
.num_remappable_wins = 8,
|
||||
.win_cfg_offset = mv78xx0_mbus_win_offset,
|
||||
.win_cfg_offset = mv78xx0_mbus_win_cfg_offset,
|
||||
.save_cpu_target = mvebu_mbus_default_save_cpu_target,
|
||||
.win_remap_offset = generic_mbus_win_remap_8_offset,
|
||||
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
|
||||
.show_cpu_target = mvebu_sdram_debug_show_orion,
|
||||
};
|
||||
|
||||
static const struct of_device_id of_mvebu_mbus_ids[] = {
|
||||
{ .compatible = "marvell,armada370-mbus",
|
||||
.data = &armada_370_xp_mbus_data, },
|
||||
.data = &armada_370_mbus_data, },
|
||||
{ .compatible = "marvell,armada375-mbus",
|
||||
.data = &armada_xp_mbus_data, },
|
||||
{ .compatible = "marvell,armada380-mbus",
|
||||
.data = &armada_xp_mbus_data, },
|
||||
{ .compatible = "marvell,armadaxp-mbus",
|
||||
.data = &armada_370_xp_mbus_data, },
|
||||
.data = &armada_xp_mbus_data, },
|
||||
{ .compatible = "marvell,kirkwood-mbus",
|
||||
.data = &kirkwood_mbus_data, },
|
||||
{ .compatible = "marvell,dove-mbus",
|
||||
@ -789,15 +940,19 @@ static int mvebu_mbus_suspend(void)
|
||||
for (win = 0; win < s->soc->num_wins; win++) {
|
||||
void __iomem *addr = s->mbuswins_base +
|
||||
s->soc->win_cfg_offset(win);
|
||||
void __iomem *addr_rmp;
|
||||
|
||||
s->wins[win].base = readl(addr + WIN_BASE_OFF);
|
||||
s->wins[win].ctrl = readl(addr + WIN_CTRL_OFF);
|
||||
|
||||
if (win >= s->soc->num_remappable_wins)
|
||||
if (!mvebu_mbus_window_is_remappable(s, win))
|
||||
continue;
|
||||
|
||||
s->wins[win].remap_lo = readl(addr + WIN_REMAP_LO_OFF);
|
||||
s->wins[win].remap_hi = readl(addr + WIN_REMAP_HI_OFF);
|
||||
addr_rmp = s->mbuswins_base +
|
||||
s->soc->win_remap_offset(win);
|
||||
|
||||
s->wins[win].remap_lo = readl(addr_rmp + WIN_REMAP_LO_OFF);
|
||||
s->wins[win].remap_hi = readl(addr_rmp + WIN_REMAP_HI_OFF);
|
||||
}
|
||||
|
||||
s->mbus_bridge_ctrl = readl(s->mbusbridge_base +
|
||||
@ -821,15 +976,19 @@ static void mvebu_mbus_resume(void)
|
||||
for (win = 0; win < s->soc->num_wins; win++) {
|
||||
void __iomem *addr = s->mbuswins_base +
|
||||
s->soc->win_cfg_offset(win);
|
||||
void __iomem *addr_rmp;
|
||||
|
||||
writel(s->wins[win].base, addr + WIN_BASE_OFF);
|
||||
writel(s->wins[win].ctrl, addr + WIN_CTRL_OFF);
|
||||
|
||||
if (win >= s->soc->num_remappable_wins)
|
||||
if (!mvebu_mbus_window_is_remappable(s, win))
|
||||
continue;
|
||||
|
||||
writel(s->wins[win].remap_lo, addr + WIN_REMAP_LO_OFF);
|
||||
writel(s->wins[win].remap_hi, addr + WIN_REMAP_HI_OFF);
|
||||
addr_rmp = s->mbuswins_base +
|
||||
s->soc->win_remap_offset(win);
|
||||
|
||||
writel(s->wins[win].remap_lo, addr_rmp + WIN_REMAP_LO_OFF);
|
||||
writel(s->wins[win].remap_hi, addr_rmp + WIN_REMAP_HI_OFF);
|
||||
}
|
||||
}
|
||||
|
||||
@ -844,7 +1003,8 @@ static int __init mvebu_mbus_common_init(struct mvebu_mbus_state *mbus,
|
||||
phys_addr_t sdramwins_phys_base,
|
||||
size_t sdramwins_size,
|
||||
phys_addr_t mbusbridge_phys_base,
|
||||
size_t mbusbridge_size)
|
||||
size_t mbusbridge_size,
|
||||
bool is_coherent)
|
||||
{
|
||||
int win;
|
||||
|
||||
@ -876,6 +1036,10 @@ static int __init mvebu_mbus_common_init(struct mvebu_mbus_state *mbus,
|
||||
|
||||
mbus->soc->setup_cpu_target(mbus);
|
||||
|
||||
if (is_coherent)
|
||||
writel(UNIT_SYNC_BARRIER_ALL,
|
||||
mbus->mbuswins_base + UNIT_SYNC_BARRIER_OFF);
|
||||
|
||||
register_syscore_ops(&mvebu_mbus_syscore_ops);
|
||||
|
||||
return 0;
|
||||
@ -903,7 +1067,7 @@ int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
|
||||
mbuswins_phys_base,
|
||||
mbuswins_size,
|
||||
sdramwins_phys_base,
|
||||
sdramwins_size, 0, 0);
|
||||
sdramwins_size, 0, 0, false);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_OF
|
||||
@ -1105,7 +1269,8 @@ int __init mvebu_mbus_dt_init(bool is_coherent)
|
||||
sdramwins_res.start,
|
||||
resource_size(&sdramwins_res),
|
||||
mbusbridge_res.start,
|
||||
resource_size(&mbusbridge_res));
|
||||
resource_size(&mbusbridge_res),
|
||||
is_coherent);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user