A2P is the AHB-to-P Bridge. A2P registers are located at the memory range at [0x1e720000, 0x1e73ffff]. Refer to them with constants named AST_REG_A2P<n>, where <n> is the byte offset into the range.
Signed-off-by: Thomas Zimmermann <[email protected]> --- drivers/gpu/drm/ast/ast_2300.c | 6 +++--- drivers/gpu/drm/ast/ast_reg.h | 8 ++++++++ 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/ast/ast_2300.c b/drivers/gpu/drm/ast/ast_2300.c index 1fe947178124..96d9909d942c 100644 --- a/drivers/gpu/drm/ast/ast_2300.c +++ b/drivers/gpu/drm/ast/ast_2300.c @@ -508,7 +508,7 @@ static bool cbr_dll2(struct ast_device *ast, struct ast2300_dram_param *param) dlli = (dllmin[1] + dllmax[1]) >> 1; dlli <<= 8; dlli += (dllmin[0] + dllmax[0]) >> 1; - ast_moutdwm(ast, AST_REG_MCR68, ast_mindwm(ast, 0x1E720058) | (dlli << 16)); + ast_moutdwm(ast, AST_REG_MCR68, ast_mindwm(ast, AST_REG_A2P58) | (dlli << 16)); return status; } /* CBRDLL2 */ @@ -826,7 +826,7 @@ static void ddr3_init(struct ast_device *ast, struct ast2300_dram_param *param) data = ast_mindwm(ast, AST_REG_MCR1C); data = (data >> 8) & 0xff; } - ast_moutdwm(ast, 0x1E720058, ast_mindwm(ast, AST_REG_MCR68) & 0xffff); + ast_moutdwm(ast, AST_REG_A2P58, ast_mindwm(ast, AST_REG_MCR68) & 0xffff); data = ast_mindwm(ast, AST_REG_MCR18) | 0xC00; ast_moutdwm(ast, AST_REG_MCR18, data); @@ -1188,7 +1188,7 @@ static void ddr2_init(struct ast_device *ast, struct ast2300_dram_param *param) data = ast_mindwm(ast, AST_REG_MCR1C); data = (data >> 8) & 0xff; } - ast_moutdwm(ast, 0x1E720058, ast_mindwm(ast, AST_REG_MCR08) & 0xffff); + ast_moutdwm(ast, AST_REG_A2P58, ast_mindwm(ast, AST_REG_MCR08) & 0xffff); data = ast_mindwm(ast, AST_REG_MCR18) | 0xC00; ast_moutdwm(ast, AST_REG_MCR18, data); diff --git a/drivers/gpu/drm/ast/ast_reg.h b/drivers/gpu/drm/ast/ast_reg.h index e8d4991186ca..730072a3c2cd 100644 --- a/drivers/gpu/drm/ast/ast_reg.h +++ b/drivers/gpu/drm/ast/ast_reg.h @@ -188,4 +188,12 @@ #define AST_REG_SCU104 AST_REG_SCU(0x104) #define AST_REG_SCU160 AST_REG_SCU(0x160) +/* + * AHB-to-P Bus Bridge (0x1e720000 - 0x1e73ffff) + */ + +#define AST_REG_A2P_BASE (0x1e720000) +#define AST_REG_A2P(__offset) (AST_REG_A2P_BASE + (__offset)) +#define AST_REG_A2P58 AST_REG_A2P(0x58) + #endif -- 2.53.0
