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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-05-19 05:49:14 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-05-26 22:22:21 +1000 |
| commit | 136a9a0f74d2e0d9de5515190fe80344b86b45cf (patch) | |
| tree | 504f1c7c165ea9f431ba0ca6257aeba9957b41cf /arch/powerpc/sysdev | |
| parent | powerpc/8xx: Add function to set pinned TLBs (diff) | |
| download | linux-dev-136a9a0f74d2e0d9de5515190fe80344b86b45cf.tar.xz linux-dev-136a9a0f74d2e0d9de5515190fe80344b86b45cf.zip | |
powerpc/8xx: Don't set IMMR map anymore at boot
Only early debug requires IMMR to be mapped early.
No need to set it up and pin it in assembly. Map it
through page tables at udbg init when necessary.
If CONFIG_PIN_TLB_IMMR is selected, pin it once we
don't need the 32 Mb pinned RAM anymore.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/13c1e8539fdf363d3146f4884e5c3c76c6c308b5.1589866984.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/cpm_common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c index 71660bacb264..7dc1960f8bdb 100644 --- a/arch/powerpc/sysdev/cpm_common.c +++ b/arch/powerpc/sysdev/cpm_common.c @@ -68,6 +68,8 @@ static void udbg_putc_cpm(char c) void __init udbg_init_cpm(void) { #ifdef CONFIG_PPC_8xx + mmu_mapin_immr(); + cpm_udbg_txdesc = (u32 __iomem __force *) (CONFIG_PPC_EARLY_DEBUG_CPM_ADDR - PHYS_IMMR_BASE + VIRT_IMMR_BASE); |