ARM: davinci: da850: add dsp clock definition

Added dsp clock definition, keyed to "davinci-rproc.0".
DSP clocks is derived from pll0 sysclk1. Add a clock tree
node for that too.

Signed-off-by: Robert Tivy <rtivy@ti.com>
[nsekhar@ti.com: merge addition of pll0 sysclk1 and dsp clock
into one commit. Add PSC_FORCE to dsp clock node to handle the
case where DSP does not go into IDLE and its clock needs to
be disabled.]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 6b9154e9f908..0c4a26ddebba 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -76,6 +76,13 @@ static struct clk pll0_aux_clk = {
         .flags          = CLK_PLL | PRE_PLL,
 };
 
+static struct clk pll0_sysclk1 = {
+        .name           = "pll0_sysclk1",
+        .parent         = &pll0_clk,
+        .flags          = CLK_PLL,
+        .div_reg        = PLLDIV1,
+};
+
 static struct clk pll0_sysclk2 = {
         .name           = "pll0_sysclk2",
         .parent         = &pll0_clk,
@@ -368,10 +375,19 @@ static struct clk sata_clk = {
         .flags          = PSC_FORCE,
 };
 
+static struct clk dsp_clk = {
+        .name           = "dsp",
+        .parent         = &pll0_sysclk1,
+        .domain         = DAVINCI_GPSC_DSPDOMAIN,
+        .lpsc           = DA8XX_LPSC0_GEM,
+        .flags          = PSC_LRST | PSC_FORCE,
+};
+
 static struct clk_lookup da850_clks[] = {
         CLK(NULL,               "ref",          &ref_clk),
         CLK(NULL,               "pll0",         &pll0_clk),
         CLK(NULL,               "pll0_aux",     &pll0_aux_clk),
+        CLK(NULL,               "pll0_sysclk1", &pll0_sysclk1),
         CLK(NULL,               "pll0_sysclk2", &pll0_sysclk2),
         CLK(NULL,               "pll0_sysclk3", &pll0_sysclk3),
         CLK(NULL,               "pll0_sysclk4", &pll0_sysclk4),
@@ -413,6 +429,7 @@ static struct clk_lookup da850_clks[] = {
         CLK("spi_davinci.1",    NULL,           &spi1_clk),
         CLK("vpif",             NULL,           &vpif_clk),
         CLK("ahci",             NULL,           &sata_clk),
+        CLK("davinci-rproc.0",  NULL,           &dsp_clk),
         CLK(NULL,               NULL,           NULL),
 };