OMAP4: Smartreflex framework extensions

This patch extends the smartreflex framework to support
OMAP4. The changes are minor like compiling smartreflex Kconfig
option for OMAP4 also, and a couple of OMAP4 checks in
the smartreflex framework.

The change in sr_device.c where new logic has to be introduced
for reading the efuse registers is due to the fact that in OMAP4
the efuse registers are 24 bit aligned. A __raw_readl will
fail for non-32 bit aligned address and hence the 8-bit read
and shift.

Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 52a05b336c08..77ecebf3fae2 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -153,7 +153,11 @@ static void sr_set_clk_length(struct omap_sr *sr)
         struct clk *sys_ck;
         u32 sys_clk_speed;
 
-        sys_ck = clk_get(NULL, "sys_ck");
+        if (cpu_is_omap34xx())
+                sys_ck = clk_get(NULL, "sys_ck");
+        else
+                sys_ck = clk_get(NULL, "sys_clkin_ck");
+
         if (IS_ERR(sys_ck)) {
                 dev_err(&sr->pdev->dev, "%s: unable to get sys clk\n",
                         __func__);
@@ -193,7 +197,7 @@ static void sr_set_regfields(struct omap_sr *sr)
          * file or pmic specific data structure. In that case these structure
          * fields will have to be populated using the pdata or pmic structure.
          */
-        if (cpu_is_omap34xx()) {
+        if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
                 sr->err_weight = OMAP3430_SR_ERRWEIGHT;
                 sr->err_maxlimit = OMAP3430_SR_ERRMAXLIMIT;
                 sr->accum_data = OMAP3430_SR_ACCUMDATA;