MIPS: PowerTV: Streamline access to platform device registers

Pre-compute addresses for the basic ASIC registers. This speeds up access
and allows memory for unused configurations to be freed. In addition,
uninitialized register addresses will be returned as NULL to catch bad
usage quickly.

Signed-off-by: David VomLehn <[email protected]>
To: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/806/
Signed-off-by: Ralf Baechle <[email protected]>

1 files changed, 67 insertions, 64 deletions

diff --git a/arch/mips/powertv/asic/asic-calliope.c b/arch/mips/powertv/asic/asic-calliope.c
index 03d3884c6270..1ae6623444b2 100644
--- a/arch/mips/powertv/asic/asic-calliope.c
+++ b/arch/mips/powertv/asic/asic-calliope.c
@@ -23,76 +23,79 @@
  * Description:  Defines the platform resources for the SA settop.
  */
 
+#include <linux/init.h>
 #include <asm/mach-powertv/asic.h>
 
-const struct register_map calliope_register_map = {
-	.eic_slow0_strt_add = 0x800000,
-	.eic_cfg_bits = 0x800038,
-	.eic_ready_status = 0x80004c,
+#define CALLIOPE_ADDR(x)	(CALLIOPE_IO_BASE + (x))
 
-	.chipver3 = 0xA00800,
-	.chipver2 = 0xA00804,
-	.chipver1 = 0xA00808,
-	.chipver0 = 0xA0080c,
+const struct register_map calliope_register_map __initdata = {
+	.eic_slow0_strt_add = {.phys = CALLIOPE_ADDR(0x800000)},
+	.eic_cfg_bits = {.phys = CALLIOPE_ADDR(0x800038)},
+	.eic_ready_status = {.phys = CALLIOPE_ADDR(0x80004c)},
+
+	.chipver3 = {.phys = CALLIOPE_ADDR(0xA00800)},
+	.chipver2 = {.phys = CALLIOPE_ADDR(0xA00804)},
+	.chipver1 = {.phys = CALLIOPE_ADDR(0xA00808)},
+	.chipver0 = {.phys = CALLIOPE_ADDR(0xA0080c)},
 
 	/* The registers of IRBlaster */
-	.uart1_intstat = 0xA01800,
-	.uart1_inten = 0xA01804,
-	.uart1_config1 = 0xA01808,
-	.uart1_config2 = 0xA0180C,
-	.uart1_divisorhi = 0xA01810,
-	.uart1_divisorlo = 0xA01814,
-	.uart1_data = 0xA01818,
-	.uart1_status = 0xA0181C,
+	.uart1_intstat = {.phys = CALLIOPE_ADDR(0xA01800)},
+	.uart1_inten = {.phys = CALLIOPE_ADDR(0xA01804)},
+	.uart1_config1 = {.phys = CALLIOPE_ADDR(0xA01808)},
+	.uart1_config2 = {.phys = CALLIOPE_ADDR(0xA0180C)},
+	.uart1_divisorhi = {.phys = CALLIOPE_ADDR(0xA01810)},
+	.uart1_divisorlo = {.phys = CALLIOPE_ADDR(0xA01814)},
+	.uart1_data = {.phys = CALLIOPE_ADDR(0xA01818)},
+	.uart1_status = {.phys = CALLIOPE_ADDR(0xA0181C)},
 
-	.int_stat_3 = 0xA02800,
-	.int_stat_2 = 0xA02804,
-	.int_stat_1 = 0xA02808,
-	.int_stat_0 = 0xA0280c,
-	.int_config = 0xA02810,
-	.int_int_scan = 0xA02818,
-	.ien_int_3 = 0xA02830,
-	.ien_int_2 = 0xA02834,
-	.ien_int_1 = 0xA02838,
-	.ien_int_0 = 0xA0283c,
-	.int_level_3_3 = 0xA02880,
-	.int_level_3_2 = 0xA02884,
-	.int_level_3_1 = 0xA02888,
-	.int_level_3_0 = 0xA0288c,
-	.int_level_2_3 = 0xA02890,
-	.int_level_2_2 = 0xA02894,
-	.int_level_2_1 = 0xA02898,
-	.int_level_2_0 = 0xA0289c,
-	.int_level_1_3 = 0xA028a0,
-	.int_level_1_2 = 0xA028a4,
-	.int_level_1_1 = 0xA028a8,
-	.int_level_1_0 = 0xA028ac,
-	.int_level_0_3 = 0xA028b0,
-	.int_level_0_2 = 0xA028b4,
-	.int_level_0_1 = 0xA028b8,
-	.int_level_0_0 = 0xA028bc,
-	.int_docsis_en = 0xA028F4,
+	.int_stat_3 = {.phys = CALLIOPE_ADDR(0xA02800)},
+	.int_stat_2 = {.phys = CALLIOPE_ADDR(0xA02804)},
+	.int_stat_1 = {.phys = CALLIOPE_ADDR(0xA02808)},
+	.int_stat_0 = {.phys = CALLIOPE_ADDR(0xA0280c)},
+	.int_config = {.phys = CALLIOPE_ADDR(0xA02810)},
+	.int_int_scan = {.phys = CALLIOPE_ADDR(0xA02818)},
+	.ien_int_3 = {.phys = CALLIOPE_ADDR(0xA02830)},
+	.ien_int_2 = {.phys = CALLIOPE_ADDR(0xA02834)},
+	.ien_int_1 = {.phys = CALLIOPE_ADDR(0xA02838)},
+	.ien_int_0 = {.phys = CALLIOPE_ADDR(0xA0283c)},
+	.int_level_3_3 = {.phys = CALLIOPE_ADDR(0xA02880)},
+	.int_level_3_2 = {.phys = CALLIOPE_ADDR(0xA02884)},
+	.int_level_3_1 = {.phys = CALLIOPE_ADDR(0xA02888)},
+	.int_level_3_0 = {.phys = CALLIOPE_ADDR(0xA0288c)},
+	.int_level_2_3 = {.phys = CALLIOPE_ADDR(0xA02890)},
+	.int_level_2_2 = {.phys = CALLIOPE_ADDR(0xA02894)},
+	.int_level_2_1 = {.phys = CALLIOPE_ADDR(0xA02898)},
+	.int_level_2_0 = {.phys = CALLIOPE_ADDR(0xA0289c)},
+	.int_level_1_3 = {.phys = CALLIOPE_ADDR(0xA028a0)},
+	.int_level_1_2 = {.phys = CALLIOPE_ADDR(0xA028a4)},
+	.int_level_1_1 = {.phys = CALLIOPE_ADDR(0xA028a8)},
+	.int_level_1_0 = {.phys = CALLIOPE_ADDR(0xA028ac)},
+	.int_level_0_3 = {.phys = CALLIOPE_ADDR(0xA028b0)},
+	.int_level_0_2 = {.phys = CALLIOPE_ADDR(0xA028b4)},
+	.int_level_0_1 = {.phys = CALLIOPE_ADDR(0xA028b8)},
+	.int_level_0_0 = {.phys = CALLIOPE_ADDR(0xA028bc)},
+	.int_docsis_en = {.phys = CALLIOPE_ADDR(0xA028F4)},
 
-	.mips_pll_setup = 0x980000,
-	.usb_fs = 0x980030,     	/* -default 72800028- */
-	.test_bus = 0x9800CC,
-	.crt_spare = 0x9800d4,
-	.usb2_ohci_int_mask = 0x9A000c,
-	.usb2_strap = 0x9A0014,
-	.ehci_hcapbase = 0x9BFE00,
-	.ohci_hc_revision = 0x9BFC00,
-	.bcm1_bs_lmi_steer = 0x9E0004,
-	.usb2_control = 0x9E0054,
-	.usb2_stbus_obc = 0x9BFF00,
-	.usb2_stbus_mess_size = 0x9BFF04,
-	.usb2_stbus_chunk_size = 0x9BFF08,
+	.mips_pll_setup = {.phys = CALLIOPE_ADDR(0x980000)},
+	.usb_fs = {.phys = CALLIOPE_ADDR(0x980030)},
+	.test_bus = {.phys = CALLIOPE_ADDR(0x9800CC)},
+	.crt_spare = {.phys = CALLIOPE_ADDR(0x9800d4)},
+	.usb2_ohci_int_mask = {.phys = CALLIOPE_ADDR(0x9A000c)},
+	.usb2_strap = {.phys = CALLIOPE_ADDR(0x9A0014)},
+	.ehci_hcapbase = {.phys = CALLIOPE_ADDR(0x9BFE00)},
+	.ohci_hc_revision = {.phys = CALLIOPE_ADDR(0x9BFC00)},
+	.bcm1_bs_lmi_steer = {.phys = CALLIOPE_ADDR(0x9E0004)},
+	.usb2_control = {.phys = CALLIOPE_ADDR(0x9E0054)},
+	.usb2_stbus_obc = {.phys = CALLIOPE_ADDR(0x9BFF00)},
+	.usb2_stbus_mess_size = {.phys = CALLIOPE_ADDR(0x9BFF04)},
+	.usb2_stbus_chunk_size = {.phys = CALLIOPE_ADDR(0x9BFF08)},
 
-	.pcie_regs = 0x000000,      	/* -doesn't exist- */
-	.tim_ch = 0xA02C10,
-	.tim_cl = 0xA02C14,
-	.gpio_dout = 0xA02c20,
-	.gpio_din = 0xA02c24,
-	.gpio_dir = 0xA02c2C,
-	.watchdog = 0xA02c30,
-	.front_panel = 0x000000,    	/* -not used- */
+	.pcie_regs = {.phys = 0x000000},      	/* -doesn't exist- */
+	.tim_ch = {.phys = CALLIOPE_ADDR(0xA02C10)},
+	.tim_cl = {.phys = CALLIOPE_ADDR(0xA02C14)},
+	.gpio_dout = {.phys = CALLIOPE_ADDR(0xA02c20)},
+	.gpio_din = {.phys = CALLIOPE_ADDR(0xA02c24)},
+	.gpio_dir = {.phys = CALLIOPE_ADDR(0xA02c2C)},
+	.watchdog = {.phys = CALLIOPE_ADDR(0xA02c30)},
+	.front_panel = {.phys = 0x000000},    	/* -not used- */
 };