[U-Boot] [PATCH 8/9] clk: uniphier: add NAND 200MHz clock

Masahiro Yamada yamada.masahiro at socionext.com
Wed Dec 19 11:03:20 UTC 2018


The Denali NAND controller IP needs three clocks:

 - clk: controller core clock

 - clk_x: bus interface clock

 - ecc_clk: clock at which ECC circuitry is run

Currently, only the first one (50MHz) is provided.  The rest of the
two clock ports must be connected to the 200MHz clock line.  Add this.

Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
---

 drivers/clk/uniphier/clk-uniphier-sys.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/uniphier/clk-uniphier-sys.c b/drivers/clk/uniphier/clk-uniphier-sys.c
index 9e087b6..487b43e 100644
--- a/drivers/clk/uniphier/clk-uniphier-sys.c
+++ b/drivers/clk/uniphier/clk-uniphier-sys.c
@@ -6,13 +6,12 @@
 
 #include "clk-uniphier.h"
 
-/* Denali driver requires clk_x rate (clk: 50MHz, clk_x & ecc_clk: 200MHz) */
 #define UNIPHIER_LD4_SYS_CLK_NAND(_id)					\
-	UNIPHIER_CLK_RATE(128, 200000000),				\
+	UNIPHIER_CLK_RATE(128, 50000000),				\
 	UNIPHIER_CLK_GATE((_id), 128, 0x2104, 2)
 
 #define UNIPHIER_LD11_SYS_CLK_NAND(_id)					\
-	UNIPHIER_CLK_RATE(128, 200000000),				\
+	UNIPHIER_CLK_RATE(128, 50000000),				\
 	UNIPHIER_CLK_GATE((_id), 128, 0x210c, 0)
 
 const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = {
@@ -20,6 +19,7 @@ const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = {
     defined(CONFIG_ARCH_UNIPHIER_PRO4) || defined(CONFIG_ARCH_UNIPHIER_PRO5) ||\
     defined(CONFIG_ARCH_UNIPHIER_PXS2) || defined(CONFIG_ARCH_UNIPHIER_LD6B)
 	UNIPHIER_LD4_SYS_CLK_NAND(2),
+	UNIPHIER_CLK_RATE(3, 200000000),
 	UNIPHIER_CLK_GATE_SIMPLE(6, 0x2104, 12),	/* ether (Pro4, PXs2) */
 	UNIPHIER_CLK_GATE_SIMPLE(7, 0x2104, 5),		/* ether-gb (Pro4) */
 	UNIPHIER_CLK_GATE_SIMPLE(8, 0x2104, 10),	/* stdmac */
@@ -36,6 +36,7 @@ const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = {
 const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = {
 #if defined(CONFIG_ARCH_UNIPHIER_LD11) || defined(CONFIG_ARCH_UNIPHIER_LD20)
 	UNIPHIER_LD11_SYS_CLK_NAND(2),
+	UNIPHIER_CLK_RATE(3, 200000000),
 	UNIPHIER_CLK_GATE_SIMPLE(6, 0x210c, 6),		/* ether */
 	UNIPHIER_CLK_GATE_SIMPLE(8, 0x210c, 8),		/* stdmac */
 	UNIPHIER_CLK_GATE_SIMPLE(14, 0x210c, 14),	/* usb30 (LD20) */
@@ -48,6 +49,7 @@ const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = {
 const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[] = {
 #if defined(CONFIG_ARCH_UNIPHIER_PXS3)
 	UNIPHIER_LD11_SYS_CLK_NAND(2),
+	UNIPHIER_CLK_RATE(3, 200000000),
 	UNIPHIER_CLK_GATE_SIMPLE(6, 0x210c, 9),		/* ether0 */
 	UNIPHIER_CLK_GATE_SIMPLE(7, 0x210c, 10),	/* ether1 */
 	UNIPHIER_CLK_GATE_SIMPLE(12, 0x210c, 4),	/* usb30 (gio0) */
-- 
2.7.4



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