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drivers/misc/fsl_law.c: Rearrange code to avoid duplication

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The current code redefines functions based on FSL_CORENET_ vs not -
create macros/inlines instead that hide the differences.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Becky Bruce 2010-06-17 11:37:23 -05:00 committed by Kumar Gala
parent 70e02bca6b
commit e71755f887
2 changed files with 52 additions and 80 deletions
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1
arch/powerpc/include/asm/fsl_law.h
View File

@ -47,6 +47,7 @@ enum law_size {
};
#define law_size_bits(sz) (__ilog2_u64(sz) - 1)
#define lawar_size(x) (1ULL << ((x & 0x3f) + 1))
#ifdef CONFIG_FSL_CORENET
enum law_trgt_if {

131
drivers/misc/fsl_law.c
View File

@ -50,33 +50,61 @@ DECLARE_GLOBAL_DATA_PTR;
#endif
#ifdef CONFIG_FSL_CORENET
#define LAW_BASE (CONFIG_SYS_FSL_CORENET_CCM_ADDR)
#define LAWAR_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawar)
#define LAWBARH_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarh)
#define LAWBARL_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarl)
#define LAWBAR_SHIFT 0
#else
#define LAW_BASE (CONFIG_SYS_IMMR + 0xc08)
#define LAWAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x + 2)
#define LAWBAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x)
#define LAWBAR_SHIFT 12
#endif
static inline phys_addr_t get_law_base_addr(int idx)
{
#ifdef CONFIG_FSL_CORENET
return (phys_addr_t)
((u64)in_be32(LAWBARH_ADDR(idx)) << 32) |
in_be32(LAWBARL_ADDR(idx));
#else
return (phys_addr_t)in_be32(LAWBAR_ADDR(idx)) << LAWBAR_SHIFT;
#endif
}
static inline void set_law_base_addr(int idx, phys_addr_t addr)
{
#ifdef CONFIG_FSL_CORENET
out_be32(LAWBARL_ADDR(idx), addr & 0xffffffff);
out_be32(LAWBARH_ADDR(idx), (u64)addr >> 32);
#else
out_be32(LAWBAR_ADDR(idx), addr >> LAWBAR_SHIFT);
#endif
}
void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
{
volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR);
gd->used_laws |= (1 << idx);
out_be32(&ccm->law[idx].lawar, 0);
out_be32(&ccm->law[idx].lawbarh, ((u64)addr >> 32));
out_be32(&ccm->law[idx].lawbarl, addr & 0xffffffff);
out_be32(&ccm->law[idx].lawar, LAW_EN | ((u32)id << 20) | (u32)sz);
out_be32(LAWAR_ADDR(idx), 0);
set_law_base_addr(idx, addr);
out_be32(LAWAR_ADDR(idx), LAW_EN | ((u32)id << 20) | (u32)sz);
/* Read back so that we sync the writes */
in_be32(&ccm->law[idx].lawar);
in_be32(LAWAR_ADDR(idx));
}
void disable_law(u8 idx)
{
volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR);
gd->used_laws &= ~(1 << idx);
out_be32(&ccm->law[idx].lawar, 0);
out_be32(&ccm->law[idx].lawbarh, 0);
out_be32(&ccm->law[idx].lawbarl, 0);
out_be32(LAWAR_ADDR(idx), 0);
set_law_base_addr(idx, 0);
/* Read back so that we sync the writes */
in_be32(&ccm->law[idx].lawar);
in_be32(LAWAR_ADDR(idx));
return;
}
@ -84,77 +112,20 @@ void disable_law(u8 idx)
#ifndef CONFIG_NAND_SPL
static int get_law_entry(u8 i, struct law_entry *e)
{
volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR);
u32 lawar;
lawar = in_be32(&ccm->law[i].lawar);
lawar = in_be32(LAWAR_ADDR(i));
if (!(lawar & LAW_EN))
return 0;
e->addr = ((u64)in_be32(&ccm->law[i].lawbarh) << 32) |
in_be32(&ccm->law[i].lawbarl);
e->addr = get_law_base_addr(i);
e->size = lawar & 0x3f;
e->trgt_id = (lawar >> 20) & 0xff;
return 1;
}
#endif
#else
void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
{
volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08);
volatile u32 *lawbar = base + 8 * idx;
volatile u32 *lawar = base + 8 * idx + 2;
gd->used_laws |= (1 << idx);
out_be32(lawar, 0);
out_be32(lawbar, addr >> 12);
out_be32(lawar, LAW_EN | ((u32)id << 20) | (u32)sz);
/* Read back so that we sync the writes */
in_be32(lawar);
}
void disable_law(u8 idx)
{
volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08);
volatile u32 *lawbar = base + 8 * idx;
volatile u32 *lawar = base + 8 * idx + 2;
gd->used_laws &= ~(1 << idx);
out_be32(lawar, 0);
out_be32(lawbar, 0);
/* Read back so that we sync the writes */
in_be32(lawar);
return;
}
#ifndef CONFIG_NAND_SPL
static int get_law_entry(u8 i, struct law_entry *e)
{
volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08);
volatile u32 *lawbar = base + 8 * i;
volatile u32 *lawar = base + 8 * i + 2;
u32 temp;
temp = in_be32(lawar);
if (!(temp & LAW_EN))
return 0;
e->addr = (u64)in_be32(lawbar) << 12;
e->size = temp & 0x3f;
e->trgt_id = (temp >> 20) & 0xff;
return 1;
}
#endif
#endif
int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
{
@ -216,17 +187,17 @@ struct law_entry find_law(phys_addr_t addr)
void print_laws(void)
{
volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08);
volatile u32 *lawbar = base;
volatile u32 *lawar = base + 2;
int i;
u32 lawar;
printf("\nLocal Access Window Configuration\n");
for(i = 0; i < FSL_HW_NUM_LAWS; i++) {
printf("\tLAWBAR%d : 0x%08x, LAWAR%d : 0x%08x\n",
i, in_be32(lawbar), i, in_be32(lawar));
lawbar += 8;
lawar += 8;
for (i = 0; i < FSL_HW_NUM_LAWS; i++) {
lawar = in_be32(LAWAR_ADDR(i));
printf("LAWBAR%02d: 0x%08x", i, in_be32(LAWBAR_ADDR(i)));
printf(" LAWAR0x%02d: 0x%08x\n", i, lawar);
printf("\t(EN: %d TGT: 0x%02x SIZE: ",
(lawar & LAW_EN) ? 1 : 0, (lawar >> 20) & 0xff);
print_size(lawar_size(lawar), ")\n");
}
return;