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-rw-r--r--target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch120
1 files changed, 0 insertions, 120 deletions
diff --git a/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch b/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch
deleted file mode 100644
index 318bd5c..0000000
--- a/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch
+++ /dev/null
@@ -1,120 +0,0 @@
-From 7c70cb333deb6e2f88da9c94ddd6b3b00c97b93a Mon Sep 17 00:00:00 2001
-From: Jon Mason <jonmason@broadcom.com>
-Date: Thu, 15 Oct 2015 15:48:26 -0400
-Subject: [PATCH 45/50] clk: iproc: Add PWRCTRL support
-
-Some iProc SoC clocks use a different way to control clock power, via
-the PWRDWN bit in the PLL control register. Since the PLL control
-register is used to access the PWRDWN bit, there is no need for the
-pwr_base when this is being used. A new flag, IPROC_CLK_EMBED_PWRCTRL,
-has been added to identify this usage. We can use the AON interface to
-write the values to enable/disable PWRDOWN.
-
-Signed-off-by: Jon Mason <jonmason@broadcom.com>
----
- drivers/clk/bcm/clk-iproc-pll.c | 55 ++++++++++++++++++++++++++++-------------
- drivers/clk/bcm/clk-iproc.h | 6 +++++
- 2 files changed, 44 insertions(+), 17 deletions(-)
-
---- a/drivers/clk/bcm/clk-iproc-pll.c
-+++ b/drivers/clk/bcm/clk-iproc-pll.c
-@@ -148,14 +148,25 @@ static void __pll_disable(struct iproc_p
- writel(val, pll->asiu_base + ctrl->asiu.offset);
- }
-
-- /* latch input value so core power can be shut down */
-- val = readl(pll->pwr_base + ctrl->aon.offset);
-- val |= (1 << ctrl->aon.iso_shift);
-- writel(val, pll->pwr_base + ctrl->aon.offset);
--
-- /* power down the core */
-- val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
-- writel(val, pll->pwr_base + ctrl->aon.offset);
-+ if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
-+ val = readl(pll->pll_base + ctrl->aon.offset);
-+ val |= (bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
-+ writel(val, pll->pll_base + ctrl->aon.offset);
-+
-+ if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
-+ readl(pll->pll_base + ctrl->aon.offset);
-+ }
-+
-+ if (pll->pwr_base) {
-+ /* latch input value so core power can be shut down */
-+ val = readl(pll->pwr_base + ctrl->aon.offset);
-+ val |= (1 << ctrl->aon.iso_shift);
-+ writel(val, pll->pwr_base + ctrl->aon.offset);
-+
-+ /* power down the core */
-+ val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
-+ writel(val, pll->pwr_base + ctrl->aon.offset);
-+ }
- }
-
- static int __pll_enable(struct iproc_pll *pll)
-@@ -163,11 +174,22 @@ static int __pll_enable(struct iproc_pll
- const struct iproc_pll_ctrl *ctrl = pll->ctrl;
- u32 val;
-
-- /* power up the PLL and make sure it's not latched */
-- val = readl(pll->pwr_base + ctrl->aon.offset);
-- val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
-- val &= ~(1 << ctrl->aon.iso_shift);
-- writel(val, pll->pwr_base + ctrl->aon.offset);
-+ if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
-+ val = readl(pll->pll_base + ctrl->aon.offset);
-+ val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
-+ writel(val, pll->pll_base + ctrl->aon.offset);
-+
-+ if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
-+ readl(pll->pll_base + ctrl->aon.offset);
-+ }
-+
-+ if (pll->pwr_base) {
-+ /* power up the PLL and make sure it's not latched */
-+ val = readl(pll->pwr_base + ctrl->aon.offset);
-+ val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
-+ val &= ~(1 << ctrl->aon.iso_shift);
-+ writel(val, pll->pwr_base + ctrl->aon.offset);
-+ }
-
- /* certain PLLs also need to be ungated from the ASIU top level */
- if (ctrl->flags & IPROC_CLK_PLL_ASIU) {
-@@ -607,9 +629,8 @@ void __init iproc_pll_clk_setup(struct d
- if (WARN_ON(!pll->pll_base))
- goto err_pll_iomap;
-
-+ /* Some SoCs do not require the pwr_base, thus failing is not fatal */
- pll->pwr_base = of_iomap(node, 1);
-- if (WARN_ON(!pll->pwr_base))
-- goto err_pwr_iomap;
-
- /* some PLLs require gating control at the top ASIU level */
- if (pll_ctrl->flags & IPROC_CLK_PLL_ASIU) {
-@@ -692,9 +713,9 @@ err_pll_register:
- iounmap(pll->asiu_base);
-
- err_asiu_iomap:
-- iounmap(pll->pwr_base);
-+ if (pll->pwr_base)
-+ iounmap(pll->pwr_base);
-
--err_pwr_iomap:
- iounmap(pll->pll_base);
-
- err_pll_iomap:
---- a/drivers/clk/bcm/clk-iproc.h
-+++ b/drivers/clk/bcm/clk-iproc.h
-@@ -49,6 +49,12 @@
- #define IPROC_CLK_PLL_NEEDS_SW_CFG BIT(4)
-
- /*
-+ * Some PLLs use a different way to control clock power, via the PWRDWN bit in
-+ * the PLL control register
-+ */
-+#define IPROC_CLK_EMBED_PWRCTRL BIT(5)
-+
-+/*
- * Parameters for VCO frequency configuration
- *
- * VCO frequency =