Hi Philipp,
On 06/12/2017 07:00 PM, Philipp Tomsich wrote:
On Fri, 9 Jun 2017, Kever Yang wrote:
Add clock driver init support for:
- cpu, bus clock init;
- emmc, sdmmc clock;
- ddr clock;
Signed-off-by: Kever Yang kever.yang@rock-chips.com
arch/arm/include/asm/arch-rockchip/cru_rk322x.h | 215 ++++++++++++ drivers/clk/rockchip/Makefile | 1 + drivers/clk/rockchip/clk_rk322x.c | 413 ++++++++++++++++++++++++ 3 files changed, 629 insertions(+) create mode 100644 arch/arm/include/asm/arch-rockchip/cru_rk322x.h create mode 100644 drivers/clk/rockchip/clk_rk322x.c
diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk322x.h b/arch/arm/include/asm/arch-rockchip/cru_rk322x.h new file mode 100644 index 0000000..0a01f87 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/cru_rk322x.h @@ -0,0 +1,215 @@ +/*
- (C) Copyright 2015 Rockchip Electronics Co., Ltd
- SPDX-License-Identifier: GPL-2.0+
- */
+#ifndef _ASM_ARCH_CRU_RK322X_H +#define _ASM_ARCH_CRU_RK322X_H
+#include <common.h>
+#define MHz 1000000 +#define OSC_HZ (24 * MHz)
+#define APLL_HZ (600 * MHz) +#define GPLL_HZ (594 * MHz)
+#define CORE_PERI_HZ 150000000 +#define CORE_ACLK_HZ 300000000
+#define BUS_ACLK_HZ 148500000 +#define BUS_HCLK_HZ 148500000 +#define BUS_PCLK_HZ 74250000
+#define PERI_ACLK_HZ 148500000 +#define PERI_HCLK_HZ 148500000 +#define PERI_PCLK_HZ 74250000
+/* Private data for the clock driver - used by rockchip_get_cru() */ +struct rk322x_clk_priv {
- struct rk322x_cru *cru;
- ulong rate;
+};
+struct rk322x_cru {
- struct rk322x_pll {
unsigned int con0;unsigned int con1;unsigned int con2;- } pll[4];
- unsigned int reserved0[4];
- unsigned int cru_mode_con;
- unsigned int cru_clksel_con[35];
- unsigned int cru_clkgate_con[16];
- unsigned int cru_softrst_con[9];
- unsigned int cru_misc_con;
- unsigned int reserved1[2];
- unsigned int cru_glb_cnt_th;
- unsigned int reserved2[3];
- unsigned int cru_glb_rst_st;
- unsigned int reserved3[(0x1c0 - 0x150) / 4 - 1];
It took me a moment to understand why the 'minus one'.
Could you introduce a macro for this along the lines of U32_ELEMS_START_TO_LAST(0x1c0, 0x14c) or something similar... I fail to come up with a concise name that clearly says "from 0x1c0 and covering up to, but excluding, the address 0x150").
Well, I will keep it as-is for this patch set, because this is widely used for all other Rockchip SoCs, if we need to do this, we'd better have a clean for all of them.
Thanks, - Kever