serial: sh-sci: Move SCBRR calculation algo in to platform data.

This permits each port to select its own SCBRR calculation algorithm,
rather than having it all ifdef'ed in the header. There are presently
only 5 different variations that all parts fall under.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index ace016b..86acede 100644 (file)
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -64,18 +64,21 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xf8400000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 88, 88, 88, 88 },
        }, {
                .mapbase        = 0xf8410000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 92, 92, 92, 92 },
        }, {
                .mapbase        = 0xf8420000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 96, 96, 96, 96 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh2a/setup-mxg.c b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
index 7ec658c..b2c3bcc 100644 (file)
--- a/arch/sh/kernel/cpu/sh2a/setup-mxg.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-mxg.c
@@ -212,6 +212,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xff804000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 220, 220, 220, 220 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
index 2a2ac22..8d44917 100644 (file)
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7201.c
@@ -182,48 +182,56 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xfffe8000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 180, 180, 180, 180 }
        }, {
                .mapbase        = 0xfffe8800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 184, 184, 184, 184 }
        }, {
                .mapbase        = 0xfffe9000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 188, 188, 188, 188 }
        }, {
                .mapbase        = 0xfffe9800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 192, 192, 192, 192 }
        }, {
                .mapbase        = 0xfffea000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 196, 196, 196, 196 }
        }, {
                .mapbase        = 0xfffea800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 200, 200, 200, 200 }
        }, {
                .mapbase        = 0xfffeb000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 204, 204, 204, 204 }
        }, {
                .mapbase        = 0xfffeb800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 208, 208, 208, 208 }
        }, {

diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
index 2c9f3ab..a78d2a2 100644 (file)
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7203.c
@@ -178,24 +178,28 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xfffe8000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           =  { 192, 192, 192, 192 },
        }, {
                .mapbase        = 0xfffe8800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           =  { 196, 196, 196, 196 },
        }, {
                .mapbase        = 0xfffe9000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           =  { 200, 200, 200, 200 },
        }, {
                .mapbase        = 0xfffe9800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           =  { 204, 204, 204, 204 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
index 5a47987..68b93ed 100644 (file)
--- a/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
+++ b/arch/sh/kernel/cpu/sh2a/setup-sh7206.c
@@ -138,24 +138,28 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xfffe8000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 240, 240, 240, 240 },
        }, {
                .mapbase        = 0xfffe8800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 244, 244, 244, 244 },
        }, {
                .mapbase        = 0xfffe9000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 248, 248, 248, 248 },
        }, {
                .mapbase        = 0xfffe9800,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 252, 252, 252, 252 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
index 28de53b..27d03d8 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -73,12 +73,14 @@ static struct plat_sci_port sci_platform_data[] = {
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TIE | SCSCR_RIE  | SCSCR_TE |
                                  SCSCR_RE  | SCSCR_CKE1 | SCSCR_CKE0,
+               .scbrr_algo_id  = SCBRR_ALGO_4,
                .type           = PORT_SCIF,
                .irqs           = { 56, 56, 56 },
        }, {
                .mapbase        = 0xa4400000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TIE | SCSCR_RIE | SCSCR_TE | SCSCR_RE,
+               .scbrr_algo_id  = SCBRR_ALGO_4,
                .type           = PORT_SCIF,
                .irqs           = { 52, 52, 52 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
index 50ac428..83c9a5a 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c
@@ -111,6 +111,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xfffffe80,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TE | SCSCR_RE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCI,
                .irqs           = { 23, 23, 23, 0 },
        },
@@ -121,6 +122,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4000150,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TE | SCSCR_RE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 56, 56, 56, 56 },
        },
@@ -131,6 +133,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4000140,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TE | SCSCR_RE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_IRDA,
                .irqs           = { 52, 52, 52, 52 },
        },

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
index 007627e..9a60ffd 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -102,6 +102,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TE | SCSCR_RE | SCSCR_REIE |
                                  SCSCR_CKE1 | SCSCR_CKE0,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 52, 52, 52, 52 },
        }, {
@@ -109,6 +110,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_TE | SCSCR_RE | SCSCR_REIE |
                                  SCSCR_CKE1 | SCSCR_CKE0,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 56, 56, 56, 56 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7720.c b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
index 1fc3d90..48d50a6 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/setup-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7720.c
@@ -53,12 +53,14 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4430000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE,
+               .scbrr_algo_id  = SCBRR_ALGO_4,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
        }, {
                .mapbase        = 0xa4438000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE,
+               .scbrr_algo_id  = SCBRR_ALGO_4,
                .type           = PORT_SCIF,
                .irqs           = { 81, 81, 81, 81 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
index 9aa6fa3..ec2104b 100644 (file)
--- a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
@@ -20,6 +20,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe80000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 40, 41, 43, 42 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 2159c43..51a945e 100644 (file)
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -41,6 +41,7 @@ static struct plat_sci_port sci_platform_data = {
        .flags          = UPF_BOOT_AUTOCONF,
        .type           = PORT_SCI,
        .scscr          = SCSCR_TE | SCSCR_RE,
+       .scbrr_algo_id  = SCBRR_ALGO_2,
        .irqs           = { 23, 23, 23, 0 },
 };
 
@@ -55,6 +56,7 @@ static struct plat_sci_port scif_platform_data = {
        .mapbase        = 0xffe80000,
        .flags          = UPF_BOOT_AUTOCONF,
        .scscr          = SCSCR_TE | SCSCR_RE | SCSCR_REIE,
+       .scbrr_algo_id  = SCBRR_ALGO_2,
        .type           = PORT_SCIF,
        .irqs           = { 40, 40, 40, 40 },
 };

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 74b5e99..cee660f 100644 (file)
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -131,24 +131,28 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xfe600000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 52, 53, 55, 54 },
        }, {
                .mapbase        = 0xfe610000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 72, 73, 75, 74 },
        }, {
                .mapbase        = 0xfe620000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 76, 77, 79, 78 },
        }, {
                .mapbase        = 0xfe480000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCI,
                .irqs           = { 80, 81, 82, 0 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
index 09fb581..fbae06b 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7343.c
@@ -270,6 +270,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
                .clk            = "scif0",
@@ -277,6 +278,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 81, 81, 81, 81 },
                .clk            = "scif1",
@@ -284,6 +286,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe20000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 82, 82, 82, 82 },
                .clk            = "scif2",
@@ -291,6 +294,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe30000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 83, 83, 83, 83 },
                .clk            = "scif3",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
index 307777c..d4ee429 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7366.c
@@ -281,6 +281,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
                .clk            = "scif0",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index ffc69bc..f7b0551 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -306,6 +306,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
                .clk            = "scif0",
@@ -313,6 +314,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 81, 81, 81, 81 },
                .clk            = "scif1",
@@ -320,6 +322,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe20000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 82, 82, 82, 82 },
                .clk            = "scif2",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index 6ce331a..bb4837b 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -322,6 +322,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
                .clk            = "scif0",
@@ -329,6 +330,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 81, 81, 81, 81 },
                .clk            = "scif1",
@@ -336,6 +338,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe20000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 82, 82, 82, 82 },
                .clk            = "scif2",
@@ -343,6 +346,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e30000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 56, 56, 56, 56 },
                .clk            = "scif3",
@@ -350,6 +354,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e40000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 88, 88, 88, 88 },
                .clk            = "scif4",
@@ -357,6 +362,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e50000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 109, 109, 109, 109 },
                .clk            = "scif5",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index 4bf03c1..c934b78 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -29,6 +29,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 80, 80, 80, 80 },
                .clk            = "scif0",
@@ -36,6 +37,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 81, 81, 81, 81 },
                .clk            = "scif1",
@@ -43,6 +45,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe20000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 82, 82, 82, 82 },
                .clk            = "scif2",
@@ -50,6 +53,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e30000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 56, 56, 56, 56 },
                .clk            = "scif3",
@@ -57,6 +61,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e40000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 88, 88, 88, 88 },
                .clk            = "scif4",
@@ -64,6 +69,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xa4e50000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_3,
                .type           = PORT_SCIFA,
                .irqs           = { 109, 109, 109, 109 },
                .clk            = "scif5",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
index 76339c6..ab02771 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7763.c
@@ -41,18 +41,21 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 40, 40, 40, 40 },
        }, {
                .mapbase        = 0xffe08000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 76, 76, 76, 76 },
        }, {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 104, 104, 104, 104 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
index 07a41ff..746f4fb 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7770.c
@@ -19,60 +19,70 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xff923000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 61, 61, 61, 61 },
        }, {
                .mapbase        = 0xff924000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 62, 62, 62, 62 },
        }, {
                .mapbase        = 0xff925000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 63, 63, 63, 63 },
        }, {
                .mapbase        = 0xff926000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 64, 64, 64, 64 },
        }, {
                .mapbase        = 0xff927000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 65, 65, 65, 65 },
        }, {
                .mapbase        = 0xff928000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 66, 66, 66, 66 },
        }, {
                .mapbase        = 0xff929000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 67, 67, 67, 67 },
        }, {
                .mapbase        = 0xff92a000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 68, 68, 68, 68 },
        }, {
                .mapbase        = 0xff92b000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 69, 69, 69, 69 },
        }, {
                .mapbase        = 0xff92c000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_TOIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 70, 70, 70, 70 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 2b355b6..bcd411e 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -221,12 +221,14 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffe00000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 40, 40, 40, 40 },
        }, {
                .mapbase        = 0xffe10000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 76, 76, 76, 76 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index acd4b1d..3ae2e20 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -203,6 +203,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffea0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 40, 40, 40, 40 },
                .clk            = "scif_fck",
@@ -210,6 +211,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffeb0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 44, 44, 44, 44 },
                .clk            = "scif_fck",
@@ -217,6 +219,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffec0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 60, 60, 60, 60 },
                .clk            = "scif_fck",
@@ -224,6 +227,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffed0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 61, 61, 61, 61 },
                .clk            = "scif_fck",
@@ -231,6 +235,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffee0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 62, 62, 62, 62 },
                .clk            = "scif_fck",
@@ -238,6 +243,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffef0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 63, 63, 63, 63 },
                .clk            = "scif_fck",

diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 347ce88..8b7ea4b 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -28,6 +28,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffea0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 40, 41, 43, 42 },
        },
@@ -38,30 +39,35 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffeb0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 44, 44, 44, 44 },
        }, {
                .mapbase        = 0xffec0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 50, 50, 50, 50 },
        }, {
                .mapbase        = 0xffed0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 51, 51, 51, 51 },
        }, {
                .mapbase        = 0xffee0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 52, 52, 52, 52 },
        }, {
                .mapbase        = 0xffef0000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
+               .scbrr_algo_id  = SCBRR_ALGO_1,
                .type           = PORT_SCIF,
                .irqs           = { 53, 53, 53, 53 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
index eef9493..4a26cc3 100644 (file)
--- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c
@@ -20,24 +20,28 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = 0xffc30000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 40, 41, 43, 42 },
        }, {
                .mapbase        = 0xffc40000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 44, 45, 47, 46 },
        }, {
                .mapbase        = 0xffc50000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 48, 49, 51, 50 },
        }, {
                .mapbase        = 0xffc60000,
                .flags          = UPF_BOOT_AUTOCONF,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 52, 53, 55, 54 },
        }, {

diff --git a/arch/sh/kernel/cpu/sh5/setup-sh5.c b/arch/sh/kernel/cpu/sh5/setup-sh5.c
index 26fa10c..72aa86e 100644 (file)
--- a/arch/sh/kernel/cpu/sh5/setup-sh5.c
+++ b/arch/sh/kernel/cpu/sh5/setup-sh5.c
@@ -21,6 +21,7 @@ static struct plat_sci_port sci_platform_data[] = {
                .mapbase        = PHYS_PERIPHERAL_BLOCK + 0x01030000,
                .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
                .scscr          = SCSCR_RE | SCSCR_TE | SCSCR_REIE,
+               .scbrr_algo_id  = SCBRR_ALGO_2,
                .type           = PORT_SCIF,
                .irqs           = { 39, 40, 42, 0 },
        }, {

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 3a13e58..386fb87 100644 (file)
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -82,6 +82,9 @@ struct sci_port {
        /* SCSCR initialization */
        unsigned int            scscr;
 
+       /* SCBRR calculation algo */
+       unsigned int            scbrr_algo_id;
+
 #ifdef CONFIG_HAVE_CLK
        /* Interface clock */
        struct clk              *iclk;
@@ -928,6 +931,27 @@ static void sci_shutdown(struct uart_port *port)
                s->disable(port);
 }
 
+static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
+                                  unsigned long freq)
+{
+       switch (algo_id) {
+       case SCBRR_ALGO_1:
+               return ((freq + 16 * bps) / (16 * bps) - 1);
+       case SCBRR_ALGO_2:
+               return ((freq + 16 * bps) / (32 * bps) - 1);
+       case SCBRR_ALGO_3:
+               return (((freq * 2) + 16 * bps) / (16 * bps) - 1);
+       case SCBRR_ALGO_4:
+               return (((freq * 2) + 16 * bps) / (32 * bps) - 1);
+       case SCBRR_ALGO_5:
+               return (((freq * 1000 / 32) / bps) - 1);
+       }
+
+       /* Warn, but use a safe default */
+       WARN_ON(1);
+       return ((freq + 16 * bps) / (32 * bps) - 1);
+}
+
 static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
                            struct ktermios *old)
 {
@@ -937,7 +961,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 
        baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
        if (likely(baud))
-               t = SCBRR_VALUE(baud, port->uartclk);
+               t = sci_scbrr_calc(s->scbrr_algo_id, baud, port->uartclk);
 
        do {
                status = sci_in(port, SCxSR);
@@ -1108,7 +1132,6 @@ static void __devinit sci_init_single(struct platform_device *dev,
        sci_port->type          = sci_port->port.type = p->type;
 
        memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs));
-
 }
 
 #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE

diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 4aa0ac8..8110477 100644 (file)
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -713,59 +713,3 @@ static inline int sci_rxd_in(struct uart_port *port)
        return 1;
 }
 #endif
-
-/*
- * Values for the BitRate Register (SCBRR)
- *
- * The values are actually divisors for a frequency which can
- * be internal to the SH3 (14.7456MHz) or derived from an external
- * clock source.  This driver assumes the internal clock is used;
- * to support using an external clock source, config options or
- * possibly command-line options would need to be added.
- *
- * Also, to support speeds below 2400 (why?) the lower 2 bits of
- * the SCSMR register would also need to be set to non-zero values.
- *
- * -- Greg Banks 27Feb2000
- *
- * Answer: The SCBRR register is only eight bits, and the value in
- * it gets larger with lower baud rates. At around 2400 (depending on
- * the peripherial module clock) you run out of bits. However the
- * lower two bits of SCSMR allow the module clock to be divided down,
- * scaling the value which is needed in SCBRR.
- *
- * -- Stuart Menefy - 23 May 2000
- *
- * I meant, why would anyone bother with bitrates below 2400.
- *
- * -- Greg Banks - 7Jul2000
- *
- * You "speedist"!  How will I use my 110bps ASR-33 teletype with paper
- * tape reader as a console!
- *
- * -- Mitch Davis - 15 Jul 2000
- */
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7786)
-#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7720) || \
-      defined(CONFIG_CPU_SUBTYPE_SH7721)
-#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
-      defined(CONFIG_CPU_SUBTYPE_SH7724)
-static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
-{
-       if (port->type == PORT_SCIF)
-               return (clk+16*bps)/(32*bps)-1;
-       else
-               return ((clk*2)+16*bps)/(16*bps)-1;
-}
-#define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
-#elif defined(__H8300H__) || defined(__H8300S__)
-#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
-#else /* Generic SH */
-#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
-#endif

diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index f722a22..ff856b5 100644 (file)
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -7,6 +7,14 @@
  * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
  */
 
+enum {
+       SCBRR_ALGO_1,           /* ((clk + 16 * bps) / (16 * bps) - 1) */
+       SCBRR_ALGO_2,           /* ((clk + 16 * bps) / (32 * bps) - 1) */
+       SCBRR_ALGO_3,           /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
+       SCBRR_ALGO_4,           /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
+       SCBRR_ALGO_5,           /* (((clk * 1000 / 32) / bps) - 1) */
+};
+
 #define SCSCR_TIE      (1 << 7)
 #define SCSCR_RIE      (1 << 6)
 #define SCSCR_TE       (1 << 5)
@@ -36,6 +44,7 @@ struct plat_sci_port {
        upf_t           flags;                  /* UPF_* flags */
        char            *clk;                   /* clock string */
 
+       unsigned int    scbrr_algo_id;          /* SCBRR calculation algo */
        unsigned int    scscr;                  /* SCSCR initialization */
 };