ARC: [plat-hsdk]: Get rid of core pll frequency set in platform code

Get rid of core pll frequency set in platform code as we set it via
device tree using 'assigned-clock-rates' property.

Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c
index fd0ae5e..2958aed 100644 (file)
--- a/arch/arc/plat-hsdk/platform.c
+++ b/arch/arc/plat-hsdk/platform.c
@@ -38,42 +38,6 @@ static void __init hsdk_init_per_cpu(unsigned int cpu)
 #define CREG_PAE               (CREG_BASE + 0x180)
 #define CREG_PAE_UPDATE                (CREG_BASE + 0x194)
 
-#define CREG_CORE_IF_CLK_DIV   (CREG_BASE + 0x4B8)
-#define CREG_CORE_IF_CLK_DIV_2 0x1
-#define CGU_BASE               ARC_PERIPHERAL_BASE
-#define CGU_PLL_STATUS         (ARC_PERIPHERAL_BASE + 0x4)
-#define CGU_PLL_CTRL           (ARC_PERIPHERAL_BASE + 0x0)
-#define CGU_PLL_STATUS_LOCK    BIT(0)
-#define CGU_PLL_STATUS_ERR     BIT(1)
-#define CGU_PLL_CTRL_1GHZ      0x3A10
-#define HSDK_PLL_LOCK_TIMEOUT  500
-
-#define HSDK_PLL_LOCKED() \
-       !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_LOCK)
-
-#define HSDK_PLL_ERR() \
-       !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_ERR)
-
-static void __init hsdk_set_cpu_freq_1ghz(void)
-{
-       u32 timeout = HSDK_PLL_LOCK_TIMEOUT;
-
-       /*
-        * As we set cpu clock which exceeds 500MHz, the divider for the interface
-        * clock must be programmed to div-by-2.
-        */
-       iowrite32(CREG_CORE_IF_CLK_DIV_2, (void __iomem *) CREG_CORE_IF_CLK_DIV);
-
-       /* Set cpu clock to 1GHz */
-       iowrite32(CGU_PLL_CTRL_1GHZ, (void __iomem *) CGU_PLL_CTRL);
-
-       while (!HSDK_PLL_LOCKED() && timeout--)
-               cpu_relax();
-
-       if (!HSDK_PLL_LOCKED() || HSDK_PLL_ERR())
-               pr_err("Failed to setup CPU frequency to 1GHz!");
-}
-
 #define SDIO_BASE              (ARC_PERIPHERAL_BASE + 0xA000)
 #define SDIO_UHS_REG_EXT       (SDIO_BASE + 0x108)
 #define SDIO_UHS_REG_EXT_DIV_2 (2 << 30)
@@ -98,12 +62,6 @@ static void __init hsdk_init_early(void)
         * minimum possible div-by-2.
         */
        iowrite32(SDIO_UHS_REG_EXT_DIV_2, (void __iomem *) SDIO_UHS_REG_EXT);
-
-       /*
-        * Setup CPU frequency to 1GHz.
-        * TODO: remove it after smart hsdk pll driver will be introduced.
-        */
-       hsdk_set_cpu_freq_1ghz();
 }
 
 static const char *hsdk_compat[] __initconst = {