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FSL LAW: Keep track of LAW allocations

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Make it so we keep track of which LAWs have allocated and provide
a function (set_next_law) which can allocate a LAW for us if one is
free.

In the future we will move to doing more "dynamic" LAW allocation
since the majority of users dont really care about what LAW number
they are at.

Also, add CONFIG_MPC8540 or CONFIG_MPC8560 to those boards which needed them

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Kumar Gala
2008-06-11 00:44:10 -05:00
committed by Andrew Fleming-AFLEMING
parent ddde74a159
commit f060054dad
10 changed files with 59 additions and 25 deletions
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4
include/asm-ppc/fsl_law.h
View File

@@ -6,6 +6,9 @@
#define SET_LAW_ENTRY(idx, a, sz, trgt) \
{ .index = idx, .addr = a, .size = sz, .trgt_id = trgt }
#define SET_LAW(a, sz, trgt) \
{ .index = -1, .addr = a, .size = sz, .trgt_id = trgt }
enum law_size {
LAW_SIZE_4K = 0xb,
LAW_SIZE_8K,
@@ -70,6 +73,7 @@ struct law_entry {
};
extern void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
extern int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
extern void disable_law(u8 idx);
extern void init_laws(void);
extern void print_laws(void);

3
include/asm-ppc/global_data.h
View File

@@ -96,6 +96,9 @@ typedef struct global_data {
uint mp_alloc_base;
uint mp_alloc_top;
#endif /* CONFIG_QE */
#if defined(CONFIG_FSL_LAW)
u32 used_laws;
#endif
#if defined(CONFIG_MPC5xxx)
unsigned long ipb_clk;
unsigned long pci_clk;