diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.4/023-bus-mvebu-mbus-provide-api-for-obtaining-IO-and-DRAM.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.4/023-bus-mvebu-mbus-provide-api-for-obtaining-IO-and-DRAM.patch | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/target/linux/mvebu/patches-4.4/023-bus-mvebu-mbus-provide-api-for-obtaining-IO-and-DRAM.patch b/target/linux/mvebu/patches-4.4/023-bus-mvebu-mbus-provide-api-for-obtaining-IO-and-DRAM.patch deleted file mode 100644 index 58687f36ad..0000000000 --- a/target/linux/mvebu/patches-4.4/023-bus-mvebu-mbus-provide-api-for-obtaining-IO-and-DRAM.patch +++ /dev/null @@ -1,94 +0,0 @@ -From: Marcin Wojtas <mw@semihalf.com> -Date: Mon, 14 Mar 2016 09:39:02 +0100 -Subject: [PATCH] bus: mvebu-mbus: provide api for obtaining IO and DRAM window - information - -This commit enables finding appropriate mbus window and obtaining its -target id and attribute for given physical address in two separate -routines, both for IO and DRAM windows. This functionality -is needed for Armada XP/38x Network Controller's Buffer Manager and -PnC configuration. - -[gregory.clement@free-electrons.com: Fix size test for -mvebu_mbus_get_dram_win_info] - -Signed-off-by: Marcin Wojtas <mw@semihalf.com> -[DRAM window information reference in LKv3.10] -Signed-off-by: Evan Wang <xswang@marvell.com> -Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - ---- a/drivers/bus/mvebu-mbus.c -+++ b/drivers/bus/mvebu-mbus.c -@@ -948,6 +948,58 @@ void mvebu_mbus_get_pcie_io_aperture(str - *res = mbus_state.pcie_io_aperture; - } - -+int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr) -+{ -+ const struct mbus_dram_target_info *dram; -+ int i; -+ -+ /* Get dram info */ -+ dram = mv_mbus_dram_info(); -+ if (!dram) { -+ pr_err("missing DRAM information\n"); -+ return -ENODEV; -+ } -+ -+ /* Try to find matching DRAM window for phyaddr */ -+ for (i = 0; i < dram->num_cs; i++) { -+ const struct mbus_dram_window *cs = dram->cs + i; -+ -+ if (cs->base <= phyaddr && -+ phyaddr <= (cs->base + cs->size - 1)) { -+ *target = dram->mbus_dram_target_id; -+ *attr = cs->mbus_attr; -+ return 0; -+ } -+ } -+ -+ pr_err("invalid dram address 0x%x\n", phyaddr); -+ return -EINVAL; -+} -+EXPORT_SYMBOL_GPL(mvebu_mbus_get_dram_win_info); -+ -+int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target, -+ u8 *attr) -+{ -+ int win; -+ -+ for (win = 0; win < mbus_state.soc->num_wins; win++) { -+ u64 wbase; -+ int enabled; -+ -+ mvebu_mbus_read_window(&mbus_state, win, &enabled, &wbase, -+ size, target, attr, NULL); -+ -+ if (!enabled) -+ continue; -+ -+ if (wbase <= phyaddr && phyaddr <= wbase + *size) -+ return win; -+ } -+ -+ return -EINVAL; -+} -+EXPORT_SYMBOL_GPL(mvebu_mbus_get_io_win_info); -+ - static __init int mvebu_mbus_debugfs_init(void) - { - struct mvebu_mbus_state *s = &mbus_state; ---- a/include/linux/mbus.h -+++ b/include/linux/mbus.h -@@ -69,6 +69,9 @@ static inline const struct mbus_dram_tar - int mvebu_mbus_save_cpu_target(u32 *store_addr); - void mvebu_mbus_get_pcie_mem_aperture(struct resource *res); - void mvebu_mbus_get_pcie_io_aperture(struct resource *res); -+int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr); -+int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target, -+ u8 *attr); - int mvebu_mbus_add_window_remap_by_id(unsigned int target, - unsigned int attribute, - phys_addr_t base, size_t size, |