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Date: Tue, 31 Jul 2018 10:02:57 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Quentin Schulz <quentin.schulz@...tlin.com>
Cc: ralf@...ux-mips.org, paul.burton@...s.com, jhogan@...nel.org,
robh+dt@...nel.org, mark.rutland@....com, davem@...emloft.net,
kishon@...com, andrew@...n.ch, f.fainelli@...il.com,
linux-mips@...ux-mips.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
allan.nielsen@...rosemi.com, thomas.petazzoni@...tlin.com
Subject: Re: [PATCH net-next 05/10] net: mscc: ocelot: simplify register
access for PLL5 configuration
On 30/07/2018 14:43:50+0200, Quentin Schulz wrote:
> Since HSIO address space can be accessed by different drivers, let's
> simplify the register address definitions so that it can be easily used
> by all drivers and put the register address definition in the
> include/soc/mscc/ocelot_hsio.h header file.
>
> Signed-off-by: Quentin Schulz <quentin.schulz@...tlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> ---
> drivers/net/ethernet/mscc/ocelot.h | 73 +---------------------
> drivers/net/ethernet/mscc/ocelot_regs.c | 92 ++------------------------
> include/soc/mscc/ocelot_hsio.h | 74 +++++++++++++++++++++-
> 3 files changed, 83 insertions(+), 156 deletions(-)
>
> diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h
> index 2da20a3..3720e51 100644
> --- a/drivers/net/ethernet/mscc/ocelot.h
> +++ b/drivers/net/ethernet/mscc/ocelot.h
> @@ -332,79 +332,6 @@ enum ocelot_reg {
> SYS_CM_DATA_RD,
> SYS_CM_OP,
> SYS_CM_DATA,
> - HSIO_PLL5G_CFG0 = HSIO << TARGET_OFFSET,
> - HSIO_PLL5G_CFG1,
> - HSIO_PLL5G_CFG2,
> - HSIO_PLL5G_CFG3,
> - HSIO_PLL5G_CFG4,
> - HSIO_PLL5G_CFG5,
> - HSIO_PLL5G_CFG6,
> - HSIO_PLL5G_STATUS0,
> - HSIO_PLL5G_STATUS1,
> - HSIO_PLL5G_BIST_CFG0,
> - HSIO_PLL5G_BIST_CFG1,
> - HSIO_PLL5G_BIST_CFG2,
> - HSIO_PLL5G_BIST_STAT0,
> - HSIO_PLL5G_BIST_STAT1,
> - HSIO_RCOMP_CFG0,
> - HSIO_RCOMP_STATUS,
> - HSIO_SYNC_ETH_CFG,
> - HSIO_SYNC_ETH_PLL_CFG,
> - HSIO_S1G_DES_CFG,
> - HSIO_S1G_IB_CFG,
> - HSIO_S1G_OB_CFG,
> - HSIO_S1G_SER_CFG,
> - HSIO_S1G_COMMON_CFG,
> - HSIO_S1G_PLL_CFG,
> - HSIO_S1G_PLL_STATUS,
> - HSIO_S1G_DFT_CFG0,
> - HSIO_S1G_DFT_CFG1,
> - HSIO_S1G_DFT_CFG2,
> - HSIO_S1G_TP_CFG,
> - HSIO_S1G_RC_PLL_BIST_CFG,
> - HSIO_S1G_MISC_CFG,
> - HSIO_S1G_DFT_STATUS,
> - HSIO_S1G_MISC_STATUS,
> - HSIO_MCB_S1G_ADDR_CFG,
> - HSIO_S6G_DIG_CFG,
> - HSIO_S6G_DFT_CFG0,
> - HSIO_S6G_DFT_CFG1,
> - HSIO_S6G_DFT_CFG2,
> - HSIO_S6G_TP_CFG0,
> - HSIO_S6G_TP_CFG1,
> - HSIO_S6G_RC_PLL_BIST_CFG,
> - HSIO_S6G_MISC_CFG,
> - HSIO_S6G_OB_ANEG_CFG,
> - HSIO_S6G_DFT_STATUS,
> - HSIO_S6G_ERR_CNT,
> - HSIO_S6G_MISC_STATUS,
> - HSIO_S6G_DES_CFG,
> - HSIO_S6G_IB_CFG,
> - HSIO_S6G_IB_CFG1,
> - HSIO_S6G_IB_CFG2,
> - HSIO_S6G_IB_CFG3,
> - HSIO_S6G_IB_CFG4,
> - HSIO_S6G_IB_CFG5,
> - HSIO_S6G_OB_CFG,
> - HSIO_S6G_OB_CFG1,
> - HSIO_S6G_SER_CFG,
> - HSIO_S6G_COMMON_CFG,
> - HSIO_S6G_PLL_CFG,
> - HSIO_S6G_ACJTAG_CFG,
> - HSIO_S6G_GP_CFG,
> - HSIO_S6G_IB_STATUS0,
> - HSIO_S6G_IB_STATUS1,
> - HSIO_S6G_ACJTAG_STATUS,
> - HSIO_S6G_PLL_STATUS,
> - HSIO_S6G_REVID,
> - HSIO_MCB_S6G_ADDR_CFG,
> - HSIO_HW_CFG,
> - HSIO_HW_QSGMII_CFG,
> - HSIO_HW_QSGMII_STAT,
> - HSIO_CLK_CFG,
> - HSIO_TEMP_SENSOR_CTRL,
> - HSIO_TEMP_SENSOR_CFG,
> - HSIO_TEMP_SENSOR_STAT,
> };
>
> enum ocelot_regfield {
> diff --git a/drivers/net/ethernet/mscc/ocelot_regs.c b/drivers/net/ethernet/mscc/ocelot_regs.c
> index bf0c609..9271af1 100644
> --- a/drivers/net/ethernet/mscc/ocelot_regs.c
> +++ b/drivers/net/ethernet/mscc/ocelot_regs.c
> @@ -103,82 +103,6 @@ static const u32 ocelot_qs_regmap[] = {
> REG(QS_INH_DBG, 0x000048),
> };
>
> -static const u32 ocelot_hsio_regmap[] = {
> - REG(HSIO_PLL5G_CFG0, 0x000000),
> - REG(HSIO_PLL5G_CFG1, 0x000004),
> - REG(HSIO_PLL5G_CFG2, 0x000008),
> - REG(HSIO_PLL5G_CFG3, 0x00000c),
> - REG(HSIO_PLL5G_CFG4, 0x000010),
> - REG(HSIO_PLL5G_CFG5, 0x000014),
> - REG(HSIO_PLL5G_CFG6, 0x000018),
> - REG(HSIO_PLL5G_STATUS0, 0x00001c),
> - REG(HSIO_PLL5G_STATUS1, 0x000020),
> - REG(HSIO_PLL5G_BIST_CFG0, 0x000024),
> - REG(HSIO_PLL5G_BIST_CFG1, 0x000028),
> - REG(HSIO_PLL5G_BIST_CFG2, 0x00002c),
> - REG(HSIO_PLL5G_BIST_STAT0, 0x000030),
> - REG(HSIO_PLL5G_BIST_STAT1, 0x000034),
> - REG(HSIO_RCOMP_CFG0, 0x000038),
> - REG(HSIO_RCOMP_STATUS, 0x00003c),
> - REG(HSIO_SYNC_ETH_CFG, 0x000040),
> - REG(HSIO_SYNC_ETH_PLL_CFG, 0x000048),
> - REG(HSIO_S1G_DES_CFG, 0x00004c),
> - REG(HSIO_S1G_IB_CFG, 0x000050),
> - REG(HSIO_S1G_OB_CFG, 0x000054),
> - REG(HSIO_S1G_SER_CFG, 0x000058),
> - REG(HSIO_S1G_COMMON_CFG, 0x00005c),
> - REG(HSIO_S1G_PLL_CFG, 0x000060),
> - REG(HSIO_S1G_PLL_STATUS, 0x000064),
> - REG(HSIO_S1G_DFT_CFG0, 0x000068),
> - REG(HSIO_S1G_DFT_CFG1, 0x00006c),
> - REG(HSIO_S1G_DFT_CFG2, 0x000070),
> - REG(HSIO_S1G_TP_CFG, 0x000074),
> - REG(HSIO_S1G_RC_PLL_BIST_CFG, 0x000078),
> - REG(HSIO_S1G_MISC_CFG, 0x00007c),
> - REG(HSIO_S1G_DFT_STATUS, 0x000080),
> - REG(HSIO_S1G_MISC_STATUS, 0x000084),
> - REG(HSIO_MCB_S1G_ADDR_CFG, 0x000088),
> - REG(HSIO_S6G_DIG_CFG, 0x00008c),
> - REG(HSIO_S6G_DFT_CFG0, 0x000090),
> - REG(HSIO_S6G_DFT_CFG1, 0x000094),
> - REG(HSIO_S6G_DFT_CFG2, 0x000098),
> - REG(HSIO_S6G_TP_CFG0, 0x00009c),
> - REG(HSIO_S6G_TP_CFG1, 0x0000a0),
> - REG(HSIO_S6G_RC_PLL_BIST_CFG, 0x0000a4),
> - REG(HSIO_S6G_MISC_CFG, 0x0000a8),
> - REG(HSIO_S6G_OB_ANEG_CFG, 0x0000ac),
> - REG(HSIO_S6G_DFT_STATUS, 0x0000b0),
> - REG(HSIO_S6G_ERR_CNT, 0x0000b4),
> - REG(HSIO_S6G_MISC_STATUS, 0x0000b8),
> - REG(HSIO_S6G_DES_CFG, 0x0000bc),
> - REG(HSIO_S6G_IB_CFG, 0x0000c0),
> - REG(HSIO_S6G_IB_CFG1, 0x0000c4),
> - REG(HSIO_S6G_IB_CFG2, 0x0000c8),
> - REG(HSIO_S6G_IB_CFG3, 0x0000cc),
> - REG(HSIO_S6G_IB_CFG4, 0x0000d0),
> - REG(HSIO_S6G_IB_CFG5, 0x0000d4),
> - REG(HSIO_S6G_OB_CFG, 0x0000d8),
> - REG(HSIO_S6G_OB_CFG1, 0x0000dc),
> - REG(HSIO_S6G_SER_CFG, 0x0000e0),
> - REG(HSIO_S6G_COMMON_CFG, 0x0000e4),
> - REG(HSIO_S6G_PLL_CFG, 0x0000e8),
> - REG(HSIO_S6G_ACJTAG_CFG, 0x0000ec),
> - REG(HSIO_S6G_GP_CFG, 0x0000f0),
> - REG(HSIO_S6G_IB_STATUS0, 0x0000f4),
> - REG(HSIO_S6G_IB_STATUS1, 0x0000f8),
> - REG(HSIO_S6G_ACJTAG_STATUS, 0x0000fc),
> - REG(HSIO_S6G_PLL_STATUS, 0x000100),
> - REG(HSIO_S6G_REVID, 0x000104),
> - REG(HSIO_MCB_S6G_ADDR_CFG, 0x000108),
> - REG(HSIO_HW_CFG, 0x00010c),
> - REG(HSIO_HW_QSGMII_CFG, 0x000110),
> - REG(HSIO_HW_QSGMII_STAT, 0x000114),
> - REG(HSIO_CLK_CFG, 0x000118),
> - REG(HSIO_TEMP_SENSOR_CTRL, 0x00011c),
> - REG(HSIO_TEMP_SENSOR_CFG, 0x000120),
> - REG(HSIO_TEMP_SENSOR_STAT, 0x000124),
> -};
> -
> static const u32 ocelot_qsys_regmap[] = {
> REG(QSYS_PORT_MODE, 0x011200),
> REG(QSYS_SWITCH_PORT_MODE, 0x011234),
> @@ -303,7 +227,6 @@ static const u32 ocelot_sys_regmap[] = {
> static const u32 *ocelot_regmap[] = {
> [ANA] = ocelot_ana_regmap,
> [QS] = ocelot_qs_regmap,
> - [HSIO] = ocelot_hsio_regmap,
> [QSYS] = ocelot_qsys_regmap,
> [REW] = ocelot_rew_regmap,
> [SYS] = ocelot_sys_regmap,
> @@ -454,9 +377,11 @@ static void ocelot_pll5_init(struct ocelot *ocelot)
> /* Configure PLL5. This will need a proper CCF driver
> * The values are coming from the VTSS API for Ocelot
> */
> - ocelot_write(ocelot, HSIO_PLL5G_CFG4_IB_CTRL(0x7600) |
> - HSIO_PLL5G_CFG4_IB_BIAS_CTRL(0x8), HSIO_PLL5G_CFG4);
> - ocelot_write(ocelot, HSIO_PLL5G_CFG0_CORE_CLK_DIV(0x11) |
> + regmap_write(ocelot->targets[HSIO], HSIO_PLL5G_CFG4,
> + HSIO_PLL5G_CFG4_IB_CTRL(0x7600) |
> + HSIO_PLL5G_CFG4_IB_BIAS_CTRL(0x8));
> + regmap_write(ocelot->targets[HSIO], HSIO_PLL5G_CFG0,
> + HSIO_PLL5G_CFG0_CORE_CLK_DIV(0x11) |
> HSIO_PLL5G_CFG0_CPU_CLK_DIV(2) |
> HSIO_PLL5G_CFG0_ENA_BIAS |
> HSIO_PLL5G_CFG0_ENA_VCO_BUF |
> @@ -466,13 +391,14 @@ static void ocelot_pll5_init(struct ocelot *ocelot)
> HSIO_PLL5G_CFG0_SELBGV820(4) |
> HSIO_PLL5G_CFG0_DIV4 |
> HSIO_PLL5G_CFG0_ENA_CLKTREE |
> - HSIO_PLL5G_CFG0_ENA_LANE, HSIO_PLL5G_CFG0);
> - ocelot_write(ocelot, HSIO_PLL5G_CFG2_EN_RESET_FRQ_DET |
> + HSIO_PLL5G_CFG0_ENA_LANE);
> + regmap_write(ocelot->targets[HSIO], HSIO_PLL5G_CFG2,
> + HSIO_PLL5G_CFG2_EN_RESET_FRQ_DET |
> HSIO_PLL5G_CFG2_EN_RESET_OVERRUN |
> HSIO_PLL5G_CFG2_GAIN_TEST(0x8) |
> HSIO_PLL5G_CFG2_ENA_AMPCTRL |
> HSIO_PLL5G_CFG2_PWD_AMPCTRL_N |
> - HSIO_PLL5G_CFG2_AMPC_SEL(0x10), HSIO_PLL5G_CFG2);
> + HSIO_PLL5G_CFG2_AMPC_SEL(0x10));
> }
>
> int ocelot_chip_init(struct ocelot *ocelot)
> diff --git a/include/soc/mscc/ocelot_hsio.h b/include/soc/mscc/ocelot_hsio.h
> index d93ddec..43112dd 100644
> --- a/include/soc/mscc/ocelot_hsio.h
> +++ b/include/soc/mscc/ocelot_hsio.h
> @@ -8,6 +8,80 @@
> #ifndef _MSCC_OCELOT_HSIO_H_
> #define _MSCC_OCELOT_HSIO_H_
>
> +#define HSIO_PLL5G_CFG0 0x0000
> +#define HSIO_PLL5G_CFG1 0x0004
> +#define HSIO_PLL5G_CFG2 0x0008
> +#define HSIO_PLL5G_CFG3 0x000c
> +#define HSIO_PLL5G_CFG4 0x0010
> +#define HSIO_PLL5G_CFG5 0x0014
> +#define HSIO_PLL5G_CFG6 0x0018
> +#define HSIO_PLL5G_STATUS0 0x001c
> +#define HSIO_PLL5G_STATUS1 0x0020
> +#define HSIO_PLL5G_BIST_CFG0 0x0024
> +#define HSIO_PLL5G_BIST_CFG1 0x0028
> +#define HSIO_PLL5G_BIST_CFG2 0x002c
> +#define HSIO_PLL5G_BIST_STAT0 0x0030
> +#define HSIO_PLL5G_BIST_STAT1 0x0034
> +#define HSIO_RCOMP_CFG0 0x0038
> +#define HSIO_RCOMP_STATUS 0x003c
> +#define HSIO_SYNC_ETH_CFG 0x0040
> +#define HSIO_SYNC_ETH_PLL_CFG 0x0048
> +#define HSIO_S1G_DES_CFG 0x004c
> +#define HSIO_S1G_IB_CFG 0x0050
> +#define HSIO_S1G_OB_CFG 0x0054
> +#define HSIO_S1G_SER_CFG 0x0058
> +#define HSIO_S1G_COMMON_CFG 0x005c
> +#define HSIO_S1G_PLL_CFG 0x0060
> +#define HSIO_S1G_PLL_STATUS 0x0064
> +#define HSIO_S1G_DFT_CFG0 0x0068
> +#define HSIO_S1G_DFT_CFG1 0x006c
> +#define HSIO_S1G_DFT_CFG2 0x0070
> +#define HSIO_S1G_TP_CFG 0x0074
> +#define HSIO_S1G_RC_PLL_BIST_CFG 0x0078
> +#define HSIO_S1G_MISC_CFG 0x007c
> +#define HSIO_S1G_DFT_STATUS 0x0080
> +#define HSIO_S1G_MISC_STATUS 0x0084
> +#define HSIO_MCB_S1G_ADDR_CFG 0x0088
> +#define HSIO_S6G_DIG_CFG 0x008c
> +#define HSIO_S6G_DFT_CFG0 0x0090
> +#define HSIO_S6G_DFT_CFG1 0x0094
> +#define HSIO_S6G_DFT_CFG2 0x0098
> +#define HSIO_S6G_TP_CFG0 0x009c
> +#define HSIO_S6G_TP_CFG1 0x00a0
> +#define HSIO_S6G_RC_PLL_BIST_CFG 0x00a4
> +#define HSIO_S6G_MISC_CFG 0x00a8
> +#define HSIO_S6G_OB_ANEG_CFG 0x00ac
> +#define HSIO_S6G_DFT_STATUS 0x00b0
> +#define HSIO_S6G_ERR_CNT 0x00b4
> +#define HSIO_S6G_MISC_STATUS 0x00b8
> +#define HSIO_S6G_DES_CFG 0x00bc
> +#define HSIO_S6G_IB_CFG 0x00c0
> +#define HSIO_S6G_IB_CFG1 0x00c4
> +#define HSIO_S6G_IB_CFG2 0x00c8
> +#define HSIO_S6G_IB_CFG3 0x00cc
> +#define HSIO_S6G_IB_CFG4 0x00d0
> +#define HSIO_S6G_IB_CFG5 0x00d4
> +#define HSIO_S6G_OB_CFG 0x00d8
> +#define HSIO_S6G_OB_CFG1 0x00dc
> +#define HSIO_S6G_SER_CFG 0x00e0
> +#define HSIO_S6G_COMMON_CFG 0x00e4
> +#define HSIO_S6G_PLL_CFG 0x00e8
> +#define HSIO_S6G_ACJTAG_CFG 0x00ec
> +#define HSIO_S6G_GP_CFG 0x00f0
> +#define HSIO_S6G_IB_STATUS0 0x00f4
> +#define HSIO_S6G_IB_STATUS1 0x00f8
> +#define HSIO_S6G_ACJTAG_STATUS 0x00fc
> +#define HSIO_S6G_PLL_STATUS 0x0100
> +#define HSIO_S6G_REVID 0x0104
> +#define HSIO_MCB_S6G_ADDR_CFG 0x0108
> +#define HSIO_HW_CFG 0x010c
> +#define HSIO_HW_QSGMII_CFG 0x0110
> +#define HSIO_HW_QSGMII_STAT 0x0114
> +#define HSIO_CLK_CFG 0x0118
> +#define HSIO_TEMP_SENSOR_CTRL 0x011c
> +#define HSIO_TEMP_SENSOR_CFG 0x0120
> +#define HSIO_TEMP_SENSOR_STAT 0x0124
> +
> #define HSIO_PLL5G_CFG0_ENA_ROT BIT(31)
> #define HSIO_PLL5G_CFG0_ENA_LANE BIT(30)
> #define HSIO_PLL5G_CFG0_ENA_CLKTREE BIT(29)
> --
> git-series 0.9.1
--
Alexandre Belloni, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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