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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/clk/bcm/clk-nsp.c
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/clk/bcm/clk-nsp.c')
-rw-r--r--drivers/clk/bcm/clk-nsp.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/clk/bcm/clk-nsp.c b/drivers/clk/bcm/clk-nsp.c
new file mode 100644
index 000000000..cf66f640a
--- /dev/null
+++ b/drivers/clk/bcm/clk-nsp.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <dt-bindings/clock/bcm-nsp.h>
+#include "clk-iproc.h"
+
+#define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, }
+
+#define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
+ .pwr_shift = ps, .iso_shift = is }
+
+#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
+ .p_reset_shift = prs }
+
+#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
+ .ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
+ .ka_width = kaw }
+
+#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
+ .hold_shift = hs, .bypass_shift = bs }
+
+static void __init nsp_armpll_init(struct device_node *node)
+{
+ iproc_armpll_setup(node);
+}
+CLK_OF_DECLARE(nsp_armpll, "brcm,nsp-armpll", nsp_armpll_init);
+
+static const struct iproc_pll_ctrl genpll = {
+ .flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
+ .aon = AON_VAL(0x0, 1, 12, 0),
+ .reset = RESET_VAL(0x0, 11, 10),
+ .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3),
+ .ndiv_int = REG_VAL(0x14, 20, 10),
+ .ndiv_frac = REG_VAL(0x14, 0, 20),
+ .pdiv = REG_VAL(0x18, 24, 3),
+ .status = REG_VAL(0x20, 12, 1),
+};
+
+static const struct iproc_clk_ctrl genpll_clk[] = {
+ [BCM_NSP_GENPLL_PHY_CLK] = {
+ .channel = BCM_NSP_GENPLL_PHY_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 12, 6, 18),
+ .mdiv = REG_VAL(0x18, 16, 8),
+ },
+ [BCM_NSP_GENPLL_ENET_SW_CLK] = {
+ .channel = BCM_NSP_GENPLL_ENET_SW_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 13, 7, 19),
+ .mdiv = REG_VAL(0x18, 8, 8),
+ },
+ [BCM_NSP_GENPLL_USB_PHY_REF_CLK] = {
+ .channel = BCM_NSP_GENPLL_USB_PHY_REF_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 14, 8, 20),
+ .mdiv = REG_VAL(0x18, 0, 8),
+ },
+ [BCM_NSP_GENPLL_IPROCFAST_CLK] = {
+ .channel = BCM_NSP_GENPLL_IPROCFAST_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 15, 9, 21),
+ .mdiv = REG_VAL(0x1c, 16, 8),
+ },
+ [BCM_NSP_GENPLL_SATA1_CLK] = {
+ .channel = BCM_NSP_GENPLL_SATA1_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 16, 10, 22),
+ .mdiv = REG_VAL(0x1c, 8, 8),
+ },
+ [BCM_NSP_GENPLL_SATA2_CLK] = {
+ .channel = BCM_NSP_GENPLL_SATA2_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x4, 17, 11, 23),
+ .mdiv = REG_VAL(0x1c, 0, 8),
+ },
+};
+
+static void __init nsp_genpll_clk_init(struct device_node *node)
+{
+ iproc_pll_clk_setup(node, &genpll, NULL, 0, genpll_clk,
+ ARRAY_SIZE(genpll_clk));
+}
+CLK_OF_DECLARE(nsp_genpll_clk, "brcm,nsp-genpll", nsp_genpll_clk_init);
+
+static const struct iproc_pll_ctrl lcpll0 = {
+ .flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
+ .aon = AON_VAL(0x0, 1, 24, 0),
+ .reset = RESET_VAL(0x0, 23, 22),
+ .dig_filter = DF_VAL(0x0, 16, 3, 12, 4, 19, 4),
+ .ndiv_int = REG_VAL(0x4, 20, 8),
+ .ndiv_frac = REG_VAL(0x4, 0, 20),
+ .pdiv = REG_VAL(0x4, 28, 3),
+ .status = REG_VAL(0x10, 12, 1),
+};
+
+static const struct iproc_clk_ctrl lcpll0_clk[] = {
+ [BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK] = {
+ .channel = BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x0, 6, 3, 9),
+ .mdiv = REG_VAL(0x8, 24, 8),
+ },
+ [BCM_NSP_LCPLL0_SDIO_CLK] = {
+ .channel = BCM_NSP_LCPLL0_SDIO_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x0, 7, 4, 10),
+ .mdiv = REG_VAL(0x8, 16, 8),
+ },
+ [BCM_NSP_LCPLL0_DDR_PHY_CLK] = {
+ .channel = BCM_NSP_LCPLL0_DDR_PHY_CLK,
+ .flags = IPROC_CLK_AON,
+ .enable = ENABLE_VAL(0x0, 8, 5, 11),
+ .mdiv = REG_VAL(0x8, 8, 8),
+ },
+};
+
+static void __init nsp_lcpll0_clk_init(struct device_node *node)
+{
+ iproc_pll_clk_setup(node, &lcpll0, NULL, 0, lcpll0_clk,
+ ARRAY_SIZE(lcpll0_clk));
+}
+CLK_OF_DECLARE(nsp_lcpll0_clk, "brcm,nsp-lcpll0", nsp_lcpll0_clk_init);