sh: Fix the offset from P1SEG/P2SEG where we map RAM
We need to map the gap between 0x00000000 and __MEMORY_START in the PMB, as well as RAM. With this change my 7785LCR board can switch to 32bit MMU mode at runtime. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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@ -275,7 +275,7 @@ static void __pmb_unmap(struct pmb_entry *pmbe)
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int __uses_jump_to_uncached pmb_init(void)
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int __uses_jump_to_uncached pmb_init(void)
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{
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{
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unsigned int i;
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unsigned int i;
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long size;
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long size, ret;
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jump_to_uncached();
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jump_to_uncached();
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@ -287,12 +287,13 @@ int __uses_jump_to_uncached pmb_init(void)
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* P1 - provides a cached window onto physical memory
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* P1 - provides a cached window onto physical memory
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* P2 - provides an uncached window onto physical memory
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* P2 - provides an uncached window onto physical memory
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*/
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*/
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size = pmb_remap(P2SEG, __MEMORY_START, __MEMORY_SIZE,
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size = __MEMORY_START + __MEMORY_SIZE;
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PMB_WT | PMB_UB);
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BUG_ON(size != __MEMORY_SIZE);
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size = pmb_remap(P1SEG, __MEMORY_START, __MEMORY_SIZE, PMB_C);
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ret = pmb_remap(P1SEG, 0x00000000, size, PMB_C);
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BUG_ON(size != __MEMORY_SIZE);
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BUG_ON(ret != size);
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ret = pmb_remap(P2SEG, 0x00000000, size, PMB_WT | PMB_UB);
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BUG_ON(ret != size);
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ctrl_outl(0, PMB_IRMCR);
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ctrl_outl(0, PMB_IRMCR);
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