[PATCH 1/3] clk: imx28: Set gpmi clock to gpmi_ref

[PATCH 1/3] clk: imx28: Set gpmi clock to gpmi_ref

[Sascha Hauer]

The GPMI is parented to ref_xtal (=24MHz) by default. Reparent it to
ref_gpmi to get reasonable NAND speed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/clk/mxs/clk-imx28.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index aa4ba99cd7..382021e49c 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -145,6 +145,7 @@ static int __init mx28_clocks_init(struct device_d *dev, void __iomem *regs)
 	clk_set_rate(clks[ssp2], 96000000);
 	clk_set_rate(clks[ssp3], 96000000);
 	clk_set_parent(clks[lcdif_sel], clks[ref_pix]);
+	clk_set_parent(clks[gpmi_sel], clks[ref_gpmi]);
 
 	if (dev->device_node) {
 		clk_data.clks = clks;
-- 
2.29.2


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[PATCH 2/3] clk: imx28: propagate rate change to parents

[Sascha Hauer]

The gate clocks need to be able to set their parent's clock rates so
that drivers actually can change their clock rates. The same is done
in Linux.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/clk/mxs/clk.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/mxs/clk.h b/drivers/clk/mxs/clk.h
index 60f2408cba..a93361a9ea 100644
--- a/drivers/clk/mxs/clk.h
+++ b/drivers/clk/mxs/clk.h
@@ -35,7 +35,7 @@ static inline struct clk *mxs_clk_fixed(const char *name, int rate)
 static inline struct clk *mxs_clk_gate(const char *name,
 			const char *parent_name, void __iomem *reg, u8 shift)
 {
-	return clk_gate_inverted(name, parent_name, reg, shift, 0);
+	return clk_gate_inverted(name, parent_name, reg, shift, CLK_SET_RATE_PARENT);
 }
 
 static inline struct clk *mxs_clk_mux(const char *name, void __iomem *reg,
-- 
2.29.2


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[PATCH 3/3] mtd: nand: mxs: Enable edo mode switching for i.MX28

[Sascha Hauer]

Without it we will never use the faster timing modes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/mtd/nand/nand_mxs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
index e4bad45a18..0540ba0216 100644
--- a/drivers/mtd/nand/nand_mxs.c
+++ b/drivers/mtd/nand/nand_mxs.c
@@ -2041,9 +2041,6 @@ static int mxs_nand_enable_edo_mode(struct mxs_nand_info *info)
 	uint8_t feature[ONFI_SUBFEATURE_PARAM_LEN] = {};
 	int ret, mode;
 
-	if (!mxs_nand_is_imx6(info))
-		return -ENODEV;
-
 	if (!chip->parameters.onfi)
 		return -ENOENT;
 
@@ -2186,6 +2183,7 @@ static int mxs_nand_probe(struct device_d *dev)
 		nand_info->dma_channel_base = 0;
 	} else {
 		nand_info->dma_channel_base = MXS_DMA_CHANNEL_AHB_APBH_GPMI0;
+		clk_set_rate(nand_info->clk, 22000000);
 	}
 
 	err = mxs_nand_alloc_buffers(nand_info);
-- 
2.29.2


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