[PATCH] arm: mvebu: mbus: Fix mbus driver to work also after U-Boot relocation
Stefan Roese
sr at denx.de
Wed Aug 17 08:17:36 CEST 2022
On 10.08.22 14:46, Pali Rohár wrote:
> mbus driver is initialized from arch_cpu_init() callback which is called
> before relocation. This driver stores lot of functions and structure
> pointers into global variables, so it is data position dependent.
>
> Therefore after relocations all pointers are invalid and driver does not
> work anymore as all pointers referes to the old memory, which overlaps with
> CONFIG_SYS_LOAD_ADDR and ${loadaddr}.
>
> For example U-Boot fuse command crashes if loadaddr memory is cleared or
> rewritten by some image loaded by U-Boot load command.
>
> mw.w ${loadaddr} 0x0 10000
> fuse read 0 1 2
>
> Fix this issue by removing of all mbus global variables in which are stored
> pointers to structures or functions which changes during relocation. And
> replace it by direct function calls (not via pointers). With this change
> fuse command finally works.
>
> Signed-off-by: Pali Rohár <pali at kernel.org>
Reviewed-by: Stefan Roese <sr at denx.de>
Thanks,
Stefan
> ---
> arch/arm/mach-kirkwood/include/mach/cpu.h | 3 -
> arch/arm/mach-mvebu/include/mach/cpu.h | 3 -
> arch/arm/mach-mvebu/mbus.c | 167 +++++++++-------------
> board/alliedtelesis/x530/x530.c | 2 +-
> board/maxbcm/maxbcm.c | 8 +-
> board/theadorable/theadorable.c | 4 +-
> include/linux/mbus.h | 13 +-
> 7 files changed, 75 insertions(+), 125 deletions(-)
>
> diff --git a/arch/arm/mach-kirkwood/include/mach/cpu.h b/arch/arm/mach-kirkwood/include/mach/cpu.h
> index 71c546f9acf6..d8639c60352b 100644
> --- a/arch/arm/mach-kirkwood/include/mach/cpu.h
> +++ b/arch/arm/mach-kirkwood/include/mach/cpu.h
> @@ -144,9 +144,6 @@ struct kwgpio_registers {
> u32 irq_level;
> };
>
> -/* Needed for dynamic (board-specific) mbus configuration */
> -extern struct mvebu_mbus_state mbus_state;
> -
> /*
> * functions
> */
> diff --git a/arch/arm/mach-mvebu/include/mach/cpu.h b/arch/arm/mach-mvebu/include/mach/cpu.h
> index 689c96bd4eac..d9fa1f32aa52 100644
> --- a/arch/arm/mach-mvebu/include/mach/cpu.h
> +++ b/arch/arm/mach-mvebu/include/mach/cpu.h
> @@ -122,9 +122,6 @@ struct sar_freq_modes {
> u32 d_clk;
> };
>
> -/* Needed for dynamic (board-specific) mbus configuration */
> -extern struct mvebu_mbus_state mbus_state;
> -
> /*
> * functions
> */
> diff --git a/arch/arm/mach-mvebu/mbus.c b/arch/arm/mach-mvebu/mbus.c
> index 3b1b9f73ebf6..7092f6cc10c2 100644
> --- a/arch/arm/mach-mvebu/mbus.c
> +++ b/arch/arm/mach-mvebu/mbus.c
> @@ -88,31 +88,34 @@
>
> #define DOVE_DDR_BASE_CS_OFF(n) ((n) << 4)
>
> -struct mvebu_mbus_state;
> -
> -struct mvebu_mbus_soc_data {
> - unsigned int num_wins;
> - unsigned int num_remappable_wins;
> - unsigned int (*win_cfg_offset)(const int win);
> - void (*setup_cpu_target)(struct mvebu_mbus_state *s);
> -};
> -
> -struct mvebu_mbus_state mbus_state
> - __section(".data");
> static struct mbus_dram_target_info mbus_dram_info
> __section(".data");
>
> +#if defined(CONFIG_ARCH_MVEBU)
> + #define MVEBU_MBUS_NUM_WINS 20
> + #define MVEBU_MBUS_NUM_REMAPPABLE_WINS 8
> + #define MVEBU_MBUS_WIN_CFG_OFFSET(win) armada_370_xp_mbus_win_offset(win)
> +#elif defined(CONFIG_ARCH_KIRKWOOD)
> + #define MVEBU_MBUS_NUM_WINS 8
> + #define MVEBU_MBUS_NUM_REMAPPABLE_WINS 4
> + #define MVEBU_MBUS_WIN_CFG_OFFSET(win) orion5x_mbus_win_offset(win)
> +#else
> + #error "No supported architecture"
> +#endif
> +
> +static unsigned int armada_370_xp_mbus_win_offset(int win);
> +static unsigned int orion5x_mbus_win_offset(int win);
> +
> /*
> * Functions to manipulate the address decoding windows
> */
>
> -static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus,
> - int win, int *enabled, u64 *base,
> +static void mvebu_mbus_read_window(int win, int *enabled, u64 *base,
> u32 *size, u8 *target, u8 *attr,
> u64 *remap)
> {
> - void __iomem *addr = mbus->mbuswins_base +
> - mbus->soc->win_cfg_offset(win);
> + void __iomem *addr = (void __iomem *)MVEBU_CPU_WIN_BASE +
> + MVEBU_MBUS_WIN_CFG_OFFSET(win);
> u32 basereg = readl(addr + WIN_BASE_OFF);
> u32 ctrlreg = readl(addr + WIN_CTRL_OFF);
>
> @@ -133,7 +136,7 @@ static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus,
> *attr = (ctrlreg & WIN_CTRL_ATTR_MASK) >> WIN_CTRL_ATTR_SHIFT;
>
> if (remap) {
> - if (win < mbus->soc->num_remappable_wins) {
> + if (win < MVEBU_MBUS_NUM_REMAPPABLE_WINS) {
> u32 remap_low = readl(addr + WIN_REMAP_LO_OFF);
> u32 remap_hi = readl(addr + WIN_REMAP_HI_OFF);
> *remap = ((u64)remap_hi << 32) | remap_low;
> @@ -143,27 +146,25 @@ static void mvebu_mbus_read_window(struct mvebu_mbus_state *mbus,
> }
> }
>
> -static void mvebu_mbus_disable_window(struct mvebu_mbus_state *mbus,
> - int win)
> +static void mvebu_mbus_disable_window(int win)
> {
> void __iomem *addr;
>
> - addr = mbus->mbuswins_base + mbus->soc->win_cfg_offset(win);
> + addr = (void __iomem *)MVEBU_CPU_WIN_BASE + MVEBU_MBUS_WIN_CFG_OFFSET(win);
>
> writel(0, addr + WIN_BASE_OFF);
> writel(0, addr + WIN_CTRL_OFF);
> - if (win < mbus->soc->num_remappable_wins) {
> + if (win < MVEBU_MBUS_NUM_REMAPPABLE_WINS) {
> writel(0, addr + WIN_REMAP_LO_OFF);
> writel(0, addr + WIN_REMAP_HI_OFF);
> }
> }
>
> /* Checks whether the given window number is available */
> -static int mvebu_mbus_window_is_free(struct mvebu_mbus_state *mbus,
> - const int win)
> +static int mvebu_mbus_window_is_free(const int win)
> {
> - void __iomem *addr = mbus->mbuswins_base +
> - mbus->soc->win_cfg_offset(win);
> + void __iomem *addr = (void __iomem *)MVEBU_CPU_WIN_BASE +
> + MVEBU_MBUS_WIN_CFG_OFFSET(win);
> u32 ctrl = readl(addr + WIN_CTRL_OFF);
> return !(ctrl & WIN_CTRL_ENABLE);
> }
> @@ -172,20 +173,19 @@ static int mvebu_mbus_window_is_free(struct mvebu_mbus_state *mbus,
> * Checks whether the given (base, base+size) area doesn't overlap an
> * existing region
> */
> -static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus,
> - phys_addr_t base, size_t size,
> +static int mvebu_mbus_window_conflicts(phys_addr_t base, size_t size,
> u8 target, u8 attr)
> {
> u64 end = (u64)base + size;
> int win;
>
> - for (win = 0; win < mbus->soc->num_wins; win++) {
> + for (win = 0; win < MVEBU_MBUS_NUM_WINS; win++) {
> u64 wbase, wend;
> u32 wsize;
> u8 wtarget, wattr;
> int enabled;
>
> - mvebu_mbus_read_window(mbus, win,
> + mvebu_mbus_read_window(win,
> &enabled, &wbase, &wsize,
> &wtarget, &wattr, NULL);
>
> @@ -211,17 +211,16 @@ static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus,
> return 1;
> }
>
> -static int mvebu_mbus_find_window(struct mvebu_mbus_state *mbus,
> - phys_addr_t base, size_t size)
> +static int mvebu_mbus_find_window(phys_addr_t base, size_t size)
> {
> int win;
>
> - for (win = 0; win < mbus->soc->num_wins; win++) {
> + for (win = 0; win < MVEBU_MBUS_NUM_WINS; win++) {
> u64 wbase;
> u32 wsize;
> int enabled;
>
> - mvebu_mbus_read_window(mbus, win,
> + mvebu_mbus_read_window(win,
> &enabled, &wbase, &wsize,
> NULL, NULL, NULL);
>
> @@ -235,13 +234,12 @@ static int mvebu_mbus_find_window(struct mvebu_mbus_state *mbus,
> return -ENODEV;
> }
>
> -static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus,
> - int win, phys_addr_t base, size_t size,
> +static int mvebu_mbus_setup_window(int win, phys_addr_t base, size_t size,
> phys_addr_t remap, u8 target,
> u8 attr)
> {
> - void __iomem *addr = mbus->mbuswins_base +
> - mbus->soc->win_cfg_offset(win);
> + void __iomem *addr = (void __iomem *)MVEBU_CPU_WIN_BASE +
> + MVEBU_MBUS_WIN_CFG_OFFSET(win);
> u32 ctrl, remap_addr;
>
> ctrl = ((size - 1) & WIN_CTRL_SIZE_MASK) |
> @@ -251,7 +249,7 @@ static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus,
>
> writel(base & WIN_BASE_LOW, addr + WIN_BASE_OFF);
> writel(ctrl, addr + WIN_CTRL_OFF);
> - if (win < mbus->soc->num_remappable_wins) {
> + if (win < MVEBU_MBUS_NUM_REMAPPABLE_WINS) {
> if (remap == MVEBU_MBUS_NO_REMAP)
> remap_addr = base;
> else
> @@ -263,26 +261,25 @@ static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus,
> return 0;
> }
>
> -static int mvebu_mbus_alloc_window(struct mvebu_mbus_state *mbus,
> - phys_addr_t base, size_t size,
> +static int mvebu_mbus_alloc_window(phys_addr_t base, size_t size,
> phys_addr_t remap, u8 target,
> u8 attr)
> {
> int win;
>
> if (remap == MVEBU_MBUS_NO_REMAP) {
> - for (win = mbus->soc->num_remappable_wins;
> - win < mbus->soc->num_wins; win++)
> - if (mvebu_mbus_window_is_free(mbus, win))
> - return mvebu_mbus_setup_window(mbus, win, base,
> + for (win = MVEBU_MBUS_NUM_REMAPPABLE_WINS;
> + win < MVEBU_MBUS_NUM_WINS; win++)
> + if (mvebu_mbus_window_is_free(win))
> + return mvebu_mbus_setup_window(win, base,
> size, remap,
> target, attr);
> }
>
>
> - for (win = 0; win < mbus->soc->num_wins; win++)
> - if (mvebu_mbus_window_is_free(mbus, win))
> - return mvebu_mbus_setup_window(mbus, win, base, size,
> + for (win = 0; win < MVEBU_MBUS_NUM_WINS; win++)
> + if (mvebu_mbus_window_is_free(win))
> + return mvebu_mbus_setup_window(win, base, size,
> remap, target, attr);
>
> return -ENOMEM;
> @@ -292,7 +289,7 @@ static int mvebu_mbus_alloc_window(struct mvebu_mbus_state *mbus,
> * SoC-specific functions and definitions
> */
>
> -static unsigned int armada_370_xp_mbus_win_offset(int win)
> +static unsigned int __maybe_unused armada_370_xp_mbus_win_offset(int win)
> {
> /* The register layout is a bit annoying and the below code
> * tries to cope with it.
> @@ -312,12 +309,12 @@ static unsigned int armada_370_xp_mbus_win_offset(int win)
> return 0x90 + ((win - 8) << 3);
> }
>
> -static unsigned int orion5x_mbus_win_offset(int win)
> +static unsigned int __maybe_unused orion5x_mbus_win_offset(int win)
> {
> return win << 4;
> }
>
> -static void mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
> +static void mvebu_mbus_default_setup_cpu_target(void)
> {
> int i;
> int cs;
> @@ -325,8 +322,8 @@ static void mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
> mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
>
> 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));
> + u32 base = readl((void __iomem *)MVEBU_SDRAM_BASE + DDR_BASE_CS_OFF(i));
> + u32 size = readl((void __iomem *)MVEBU_SDRAM_BASE + DDR_SIZE_CS_OFF(i));
>
> /*
> * We only take care of entries for which the chip
> @@ -349,26 +346,10 @@ static void mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
>
> #if defined(CONFIG_ARMADA_MSYS)
> /* Disable MBUS Err Prop - in order to avoid data aborts */
> - clrbits_le32(mbus->mbuswins_base + 0x200, BIT(8));
> + clrbits_le32((void __iomem *)MVEBU_CPU_WIN_BASE + 0x200, BIT(8));
> #endif
> }
>
> -static const struct mvebu_mbus_soc_data
> -armada_370_xp_mbus_data __maybe_unused = {
> - .num_wins = 20,
> - .num_remappable_wins = 8,
> - .win_cfg_offset = armada_370_xp_mbus_win_offset,
> - .setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
> -};
> -
> -static const struct mvebu_mbus_soc_data
> -kirkwood_mbus_data __maybe_unused = {
> - .num_wins = 8,
> - .num_remappable_wins = 4,
> - .win_cfg_offset = orion5x_mbus_win_offset,
> - .setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
> -};
> -
> /*
> * Public API of the driver
> */
> @@ -382,15 +363,13 @@ int mvebu_mbus_add_window_remap_by_id(unsigned int target,
> phys_addr_t base, size_t size,
> phys_addr_t remap)
> {
> - struct mvebu_mbus_state *s = &mbus_state;
> -
> - if (!mvebu_mbus_window_conflicts(s, base, size, target, attribute)) {
> + if (!mvebu_mbus_window_conflicts(base, size, target, attribute)) {
> printf("Cannot add window '%x:%x', conflicts with another window\n",
> target, attribute);
> return -EINVAL;
> }
>
> - return mvebu_mbus_alloc_window(s, base, size, remap, target, attribute);
> + return mvebu_mbus_alloc_window(base, size, remap, target, attribute);
> }
>
> int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
> @@ -404,28 +383,27 @@ int mvebu_mbus_del_window(phys_addr_t base, size_t size)
> {
> int win;
>
> - win = mvebu_mbus_find_window(&mbus_state, base, size);
> + win = mvebu_mbus_find_window(base, size);
> if (win < 0)
> return win;
>
> - mvebu_mbus_disable_window(&mbus_state, win);
> + mvebu_mbus_disable_window(win);
> return 0;
> }
>
> #ifndef CONFIG_ARCH_KIRKWOOD
> -static void mvebu_mbus_get_lowest_base(struct mvebu_mbus_state *mbus,
> - phys_addr_t *base)
> +static void mvebu_mbus_get_lowest_base(phys_addr_t *base)
> {
> int win;
> *base = 0xffffffff;
>
> - for (win = 0; win < mbus->soc->num_wins; win++) {
> + for (win = 0; win < MVEBU_MBUS_NUM_WINS; win++) {
> u64 wbase;
> u32 wsize;
> u8 wtarget, wattr;
> int enabled;
>
> - mvebu_mbus_read_window(mbus, win,
> + mvebu_mbus_read_window(win,
> &enabled, &wbase, &wsize,
> &wtarget, &wattr, NULL);
>
> @@ -437,14 +415,14 @@ static void mvebu_mbus_get_lowest_base(struct mvebu_mbus_state *mbus,
> }
> }
>
> -static void mvebu_config_mbus_bridge(struct mvebu_mbus_state *mbus)
> +static void mvebu_config_mbus_bridge(void)
> {
> phys_addr_t base;
> u32 val;
> u32 size;
>
> /* Set MBUS bridge base/ctrl */
> - mvebu_mbus_get_lowest_base(&mbus_state, &base);
> + mvebu_mbus_get_lowest_base(&base);
>
> size = 0xffffffff - base + 1;
> if (!is_power_of_2(size)) {
> @@ -461,10 +439,9 @@ static void mvebu_config_mbus_bridge(struct mvebu_mbus_state *mbus)
> }
> #endif
>
> -int mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
> - u32 base, u32 size, u8 target, u8 attr)
> +int mbus_dt_setup_win(u32 base, u32 size, u8 target, u8 attr)
> {
> - if (!mvebu_mbus_window_conflicts(mbus, base, size, target, attr)) {
> + if (!mvebu_mbus_window_conflicts(base, size, target, attr)) {
> printf("Cannot add window '%04x:%04x', conflicts with another window\n",
> target, attr);
> return -EBUSY;
> @@ -474,8 +451,8 @@ int mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
> * In U-Boot we first try to add the mbus window to the remap windows.
> * If this fails, lets try to add the windows to the non-remap windows.
> */
> - if (mvebu_mbus_alloc_window(mbus, base, size, base, target, attr)) {
> - if (mvebu_mbus_alloc_window(mbus, base, size,
> + if (mvebu_mbus_alloc_window(base, size, base, target, attr)) {
> + if (mvebu_mbus_alloc_window(base, size,
> MVEBU_MBUS_NO_REMAP, target, attr))
> return -ENOMEM;
> }
> @@ -486,7 +463,7 @@ int mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
> * is called. Since it may get called from the board code in
> * later boot stages as well.
> */
> - mvebu_config_mbus_bridge(mbus);
> + mvebu_config_mbus_bridge();
> #endif
>
> return 0;
> @@ -498,20 +475,10 @@ int mvebu_mbus_probe(struct mbus_win windows[], int count)
> int ret;
> int i;
>
> -#if defined(CONFIG_ARCH_KIRKWOOD)
> - mbus_state.soc = &kirkwood_mbus_data;
> -#endif
> -#if defined(CONFIG_ARCH_MVEBU)
> - mbus_state.soc = &armada_370_xp_mbus_data;
> -#endif
> -
> - mbus_state.mbuswins_base = (void __iomem *)MVEBU_CPU_WIN_BASE;
> - mbus_state.sdramwins_base = (void __iomem *)MVEBU_SDRAM_BASE;
> -
> - for (win = 0; win < mbus_state.soc->num_wins; win++)
> - mvebu_mbus_disable_window(&mbus_state, win);
> + for (win = 0; win < MVEBU_MBUS_NUM_WINS; win++)
> + mvebu_mbus_disable_window(win);
>
> - mbus_state.soc->setup_cpu_target(&mbus_state);
> + mvebu_mbus_default_setup_cpu_target();
>
> /* Setup statically declared windows in the DT */
> for (i = 0; i < count; i++) {
> @@ -522,7 +489,7 @@ int mvebu_mbus_probe(struct mbus_win windows[], int count)
> attr = windows[i].attr;
> base = windows[i].base;
> size = windows[i].size;
> - ret = mbus_dt_setup_win(&mbus_state, base, size, target, attr);
> + ret = mbus_dt_setup_win(base, size, target, attr);
> if (ret < 0)
> return ret;
> }
> diff --git a/board/alliedtelesis/x530/x530.c b/board/alliedtelesis/x530/x530.c
> index cbf4533e78de..0cfb7c522f67 100644
> --- a/board/alliedtelesis/x530/x530.c
> +++ b/board/alliedtelesis/x530/x530.c
> @@ -109,7 +109,7 @@ int board_init(void)
> gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
>
> /* window for NVS */
> - mbus_dt_setup_win(&mbus_state, CONFIG_NVS_LOCATION, CONFIG_NVS_SIZE,
> + mbus_dt_setup_win(CONFIG_NVS_LOCATION, CONFIG_NVS_SIZE,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
>
> /* DEV_READYn is not needed for NVS, ignore it when accessing CS1 */
> diff --git a/board/maxbcm/maxbcm.c b/board/maxbcm/maxbcm.c
> index e92132ad19a1..aad3dc864295 100644
> --- a/board/maxbcm/maxbcm.c
> +++ b/board/maxbcm/maxbcm.c
> @@ -112,13 +112,13 @@ int board_early_init_f(void)
> /*
> * Setup some board specific mbus address windows
> */
> - mbus_dt_setup_win(&mbus_state, DEV_CS0_BASE, 16 << 20,
> + mbus_dt_setup_win(DEV_CS0_BASE, 16 << 20,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS0);
> - mbus_dt_setup_win(&mbus_state, DEV_CS1_BASE, 16 << 20,
> + mbus_dt_setup_win(DEV_CS1_BASE, 16 << 20,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
> - mbus_dt_setup_win(&mbus_state, DEV_CS2_BASE, 16 << 20,
> + mbus_dt_setup_win(DEV_CS2_BASE, 16 << 20,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS2);
> - mbus_dt_setup_win(&mbus_state, DEV_CS3_BASE, 16 << 20,
> + mbus_dt_setup_win(DEV_CS3_BASE, 16 << 20,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS3);
>
> return 0;
> diff --git a/board/theadorable/theadorable.c b/board/theadorable/theadorable.c
> index 6e41ca239919..144f122bb206 100644
> --- a/board/theadorable/theadorable.c
> +++ b/board/theadorable/theadorable.c
> @@ -208,9 +208,9 @@ int board_init(void)
> * Map SPI devices via MBUS so that they can be accessed via
> * the SPI direct access mode
> */
> - mbus_dt_setup_win(&mbus_state, SPI_BUS0_DEV1_BASE, SPI_BUS0_DEV1_SIZE,
> + mbus_dt_setup_win(SPI_BUS0_DEV1_BASE, SPI_BUS0_DEV1_SIZE,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI0_CS1);
> - mbus_dt_setup_win(&mbus_state, SPI_BUS1_DEV2_BASE, SPI_BUS0_DEV1_SIZE,
> + mbus_dt_setup_win(SPI_BUS1_DEV2_BASE, SPI_BUS0_DEV1_SIZE,
> CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_SPI1_CS2);
>
> /*
> diff --git a/include/linux/mbus.h b/include/linux/mbus.h
> index 717cbeab37f5..04112eabe1c2 100644
> --- a/include/linux/mbus.h
> +++ b/include/linux/mbus.h
> @@ -33,16 +33,6 @@ struct mbus_dram_target_info {
> } cs[4];
> };
>
> -struct mvebu_mbus_state {
> - void __iomem *mbuswins_base;
> - void __iomem *sdramwins_base;
> - struct dentry *debugfs_root;
> - struct dentry *debugfs_sdram;
> - struct dentry *debugfs_devs;
> - const struct mvebu_mbus_soc_data *soc;
> - int hw_io_coherency;
> -};
> -
> /* Flags for PCI/PCIe address decoding regions */
> #define MVEBU_MBUS_PCI_IO 0x1
> #define MVEBU_MBUS_PCI_MEM 0x2
> @@ -67,7 +57,6 @@ int mvebu_mbus_add_window_remap_by_id(unsigned int target,
> int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
> phys_addr_t base, size_t size);
> int mvebu_mbus_del_window(phys_addr_t base, size_t size);
> -int mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
> - u32 base, u32 size, u8 target, u8 attr);
> +int mbus_dt_setup_win(u32 base, u32 size, u8 target, u8 attr);
>
> #endif /* __LINUX_MBUS_H */
Viele Grüße,
Stefan Roese
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr at denx.de
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