From: Stefan Wahren <wahrenst@gmx.net>
Date: Sun, 18 Aug 2019 18:23:43 +0200
Subject: clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support
Git-commit: 42de9ad400afadd41ee027b5feef234a2d2918b9
Patch-mainline: v5.4-rc1
References: jsc#SLE-7772
The new BCM2711 supports an additional clock for the emmc2 block.
So add a new compatible and register this clock only for BCM2711.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
drivers/clk/bcm/clk-bcm2835.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 21cd952c42e0..fdf672a7219e 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -114,6 +114,8 @@
#define CM_AVEODIV 0x1bc
#define CM_EMMCCTL 0x1c0
#define CM_EMMCDIV 0x1c4
+#define CM_EMMC2CTL 0x1d0
+#define CM_EMMC2DIV 0x1d4
/* General bits for the CM_*CTL regs */
# define CM_ENABLE BIT(4)
@@ -290,7 +292,8 @@
#define BCM2835_MAX_FB_RATE 1750000000u
#define SOC_BCM2835 BIT(0)
-#define SOC_ALL (SOC_BCM2835)
+#define SOC_BCM2711 BIT(1)
+#define SOC_ALL (SOC_BCM2835 | SOC_BCM2711)
/*
* Names of clocks used within the driver that need to be replaced
@@ -2003,6 +2006,16 @@ static const struct bcm2835_clk_desc clk_desc_array[] = {
.frac_bits = 8,
.tcnt_mux = 39),
+ /* EMMC2 clock (only available for BCM2711) */
+ [BCM2711_CLOCK_EMMC2] = REGISTER_PER_CLK(
+ SOC_BCM2711,
+ .name = "emmc2",
+ .ctl_reg = CM_EMMC2CTL,
+ .div_reg = CM_EMMC2DIV,
+ .int_bits = 4,
+ .frac_bits = 8,
+ .tcnt_mux = 42),
+
/* General purpose (GPIO) clocks */
[BCM2835_CLOCK_GP0] = REGISTER_PER_CLK(
SOC_ALL,
@@ -2238,8 +2251,13 @@ static const struct cprman_plat_data cprman_bcm2835_plat_data = {
.soc = SOC_BCM2835,
};
+static const struct cprman_plat_data cprman_bcm2711_plat_data = {
+ .soc = SOC_BCM2711,
+};
+
static const struct of_device_id bcm2835_clk_of_match[] = {
{ .compatible = "brcm,bcm2835-cprman", .data = &cprman_bcm2835_plat_data },
+ { .compatible = "brcm,bcm2711-cprman", .data = &cprman_bcm2711_plat_data },
{}
};
MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match);
--
2.24.0