From patchwork Fri Sep 5 20:47:28 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivan Khoronzhuk X-Patchwork-Id: 386518 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 517691400E9 for ; Sat, 6 Sep 2014 06:48:39 +1000 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id BBFFDA7430; Fri, 5 Sep 2014 22:48:30 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zZ5cIC96WKGf; Fri, 5 Sep 2014 22:48:30 +0200 (CEST) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 78EA2A7447; Fri, 5 Sep 2014 22:48:05 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id E5091A742E for ; Fri, 5 Sep 2014 22:48:00 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VIsjU0jFGmwY for ; Fri, 5 Sep 2014 22:47:54 +0200 (CEST) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by theia.denx.de (Postfix) with ESMTPS id 08B76A73E7 for ; Fri, 5 Sep 2014 22:47:49 +0200 (CEST) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id s85KljlF031637 for ; Fri, 5 Sep 2014 15:47:48 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id s85KljJh005135 for ; Fri, 5 Sep 2014 15:47:45 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.174.1; Fri, 5 Sep 2014 15:47:45 -0500 Received: from khorivan.itg.ti.com (incasgf5a_e1_2.itg.ti.com [10.167.216.36]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s85KlcJ2016021; Fri, 5 Sep 2014 15:47:43 -0500 From: Ivan Khoronzhuk To: , Date: Fri, 5 Sep 2014 23:47:28 +0300 Message-ID: <1409950052-4680-3-git-send-email-ivan.khoronzhuk@ti.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1409950052-4680-1-git-send-email-ivan.khoronzhuk@ti.com> References: <1409950052-4680-1-git-send-email-ivan.khoronzhuk@ti.com> MIME-Version: 1.0 Cc: Ivan@theia.denx.de, Hao Zhang Subject: [U-Boot] [U-boot] [Patch v2 2/6] keystone2: clock: add K2L clock definitions and commands X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.11 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de From: Hao Zhang This patch adds clock definitions and commands to support Keystone II K2L SOC. Acked-by: Vitaly Andrianov Signed-off-by: Hao Zhang Signed-off-by: Ivan Khoronzhuk --- arch/arm/cpu/armv7/keystone/Makefile | 1 + arch/arm/cpu/armv7/keystone/clock-k2l.c | 138 +++++++++++++++++++++++++ arch/arm/cpu/armv7/keystone/cmd_clock.c | 10 ++ arch/arm/include/asm/arch-keystone/clock-k2l.h | 88 ++++++++++++++++ arch/arm/include/asm/arch-keystone/clock.h | 4 + 5 files changed, 241 insertions(+) create mode 100644 arch/arm/cpu/armv7/keystone/clock-k2l.c create mode 100644 arch/arm/include/asm/arch-keystone/clock-k2l.h diff --git a/arch/arm/cpu/armv7/keystone/Makefile b/arch/arm/cpu/armv7/keystone/Makefile index 3d8fb70..4750371 100644 --- a/arch/arm/cpu/armv7/keystone/Makefile +++ b/arch/arm/cpu/armv7/keystone/Makefile @@ -10,6 +10,7 @@ obj-y += psc.o obj-y += clock.o obj-$(CONFIG_SOC_K2HK) += clock-k2hk.o obj-$(CONFIG_SOC_K2E) += clock-k2e.o +obj-$(CONFIG_SOC_K2L) += clock-k2l.o obj-y += cmd_clock.o obj-y += cmd_mon.o obj-y += msmc.o diff --git a/arch/arm/cpu/armv7/keystone/clock-k2l.c b/arch/arm/cpu/armv7/keystone/clock-k2l.c new file mode 100644 index 0000000..1c5e4d5 --- /dev/null +++ b/arch/arm/cpu/armv7/keystone/clock-k2l.c @@ -0,0 +1,138 @@ +/* + * Keystone2: get clk rate for K2L + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +const struct keystone_pll_regs keystone_pll_regs[] = { + [CORE_PLL] = {KS2_MAINPLLCTL0, KS2_MAINPLLCTL1}, + [PASS_PLL] = {KS2_PASSPLLCTL0, KS2_PASSPLLCTL1}, + [TETRIS_PLL] = {KS2_ARMPLLCTL0, KS2_ARMPLLCTL1}, + [DDR3_PLL] = {KS2_DDR3APLLCTL0, KS2_DDR3APLLCTL1}, +}; + +int dev_speeds[] = { + SPD800, + SPD1000, + SPD1200, + SPD800, + SPD800, + SPD800, + SPD800, + SPD800, + SPD1200, + SPD1000, + SPD800, + SPD800, + SPD800, +}; + +int arm_speeds[] = { + SPD800, + SPD1000, + SPD1200, + SPD1350, + SPD1400, + SPD800, + SPD1400, + SPD1350, + SPD1200, + SPD1000, + SPD800, + SPD800, + SPD800, +}; + +/** + * pll_freq_get - get pll frequency + * Fout = Fref * NF(mult) / NR(prediv) / OD + * @pll: pll identifier + */ +static unsigned long pll_freq_get(int pll) +{ + unsigned long mult = 1, prediv = 1, output_div = 2; + unsigned long ret; + u32 tmp, reg; + + if (pll == CORE_PLL) { + ret = external_clk[sys_clk]; + if (pllctl_reg_read(pll, ctl) & PLLCTL_PLLEN) { + /* PLL mode */ + tmp = __raw_readl(KS2_MAINPLLCTL0); + prediv = (tmp & PLL_DIV_MASK) + 1; + mult = (((tmp & PLLM_MULT_HI_SMASK) >> 6) | + (pllctl_reg_read(pll, mult) & + PLLM_MULT_LO_MASK)) + 1; + output_div = ((pllctl_reg_read(pll, secctl) >> + PLL_CLKOD_SHIFT) & PLL_CLKOD_MASK) + 1; + + ret = ret / prediv / output_div * mult; + } + } else { + switch (pll) { + case PASS_PLL: + ret = external_clk[pa_clk]; + reg = KS2_PASSPLLCTL0; + break; + case TETRIS_PLL: + ret = external_clk[tetris_clk]; + reg = KS2_ARMPLLCTL0; + break; + case DDR3_PLL: + ret = external_clk[ddr3_clk]; + reg = KS2_DDR3APLLCTL0; + break; + default: + return 0; + } + + tmp = __raw_readl(reg); + if (!(tmp & PLLCTL_BYPASS)) { + /* Bypass disabled */ + prediv = (tmp & PLL_DIV_MASK) + 1; + mult = ((tmp >> PLL_MULT_SHIFT) & PLL_MULT_MASK) + 1; + output_div = ((tmp >> PLL_CLKOD_SHIFT) & + PLL_CLKOD_MASK) + 1; + ret = ((ret / prediv) * mult) / output_div; + } + } + + return ret; +} + +unsigned long clk_get_rate(unsigned int clk) +{ + switch (clk) { + case core_pll_clk: return pll_freq_get(CORE_PLL); + case pass_pll_clk: return pll_freq_get(PASS_PLL); + case tetris_pll_clk: return pll_freq_get(TETRIS_PLL); + case ddr3_pll_clk: return pll_freq_get(DDR3_PLL); + case sys_clk0_1_clk: + case sys_clk0_clk: return pll_freq_get(CORE_PLL) / pll0div_read(1); + case sys_clk1_clk: return pll_freq_get(CORE_PLL) / pll0div_read(2); + case sys_clk2_clk: return pll_freq_get(CORE_PLL) / pll0div_read(3); + case sys_clk3_clk: return pll_freq_get(CORE_PLL) / pll0div_read(4); + case sys_clk0_2_clk: return clk_get_rate(sys_clk0_clk) / 2; + case sys_clk0_3_clk: return clk_get_rate(sys_clk0_clk) / 3; + case sys_clk0_4_clk: return clk_get_rate(sys_clk0_clk) / 4; + case sys_clk0_6_clk: return clk_get_rate(sys_clk0_clk) / 6; + case sys_clk0_8_clk: return clk_get_rate(sys_clk0_clk) / 8; + case sys_clk0_12_clk: return clk_get_rate(sys_clk0_clk) / 12; + case sys_clk0_24_clk: return clk_get_rate(sys_clk0_clk) / 24; + case sys_clk1_3_clk: return clk_get_rate(sys_clk1_clk) / 3; + case sys_clk1_4_clk: return clk_get_rate(sys_clk1_clk) / 4; + case sys_clk1_6_clk: return clk_get_rate(sys_clk1_clk) / 6; + case sys_clk1_12_clk: return clk_get_rate(sys_clk1_clk) / 12; + default: + break; + } + + return 0; +} diff --git a/arch/arm/cpu/armv7/keystone/cmd_clock.c b/arch/arm/cpu/armv7/keystone/cmd_clock.c index d97c95b..9204887 100644 --- a/arch/arm/cpu/armv7/keystone/cmd_clock.c +++ b/arch/arm/cpu/armv7/keystone/cmd_clock.c @@ -72,6 +72,13 @@ U_BOOT_CMD( "
\n" ); #endif +#ifdef CONFIG_SOC_K2L +U_BOOT_CMD( + pllset, 5, 0, do_pll_cmd, + "set pll multiplier and pre divider", + "
\n" +); +#endif int do_getclk_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { @@ -101,6 +108,9 @@ U_BOOT_CMD( #ifdef CONFIG_SOC_K2E "See the 'enum clk_e' in the clock-k2e.h for clk indexes\n" #endif +#ifdef CONFIG_SOC_K2L + "See the 'enum clk_e' in the clock-k2l.h for clk indexes\n" +#endif ); int do_psc_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) diff --git a/arch/arm/include/asm/arch-keystone/clock-k2l.h b/arch/arm/include/asm/arch-keystone/clock-k2l.h new file mode 100644 index 0000000..8cacee0 --- /dev/null +++ b/arch/arm/include/asm/arch-keystone/clock-k2l.h @@ -0,0 +1,88 @@ +/* + * K2L: Clock management APIs + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __ASM_ARCH_CLOCK_K2L_H +#define __ASM_ARCH_CLOCK_K2L_H + +enum ext_clk_e { + sys_clk, + alt_core_clk, + pa_clk, + tetris_clk, + ddr3_clk, + pcie_clk, + sgmii_clk, + usb_clk, + rp1_clk, + ext_clk_count /* number of external clocks */ +}; + +extern unsigned int external_clk[ext_clk_count]; + +enum clk_e { + core_pll_clk, + pass_pll_clk, + tetris_pll_clk, + ddr3_pll_clk, + sys_clk0_clk, + sys_clk0_1_clk, + sys_clk0_2_clk, + sys_clk0_3_clk, + sys_clk0_4_clk, + sys_clk0_6_clk, + sys_clk0_8_clk, + sys_clk0_12_clk, + sys_clk0_24_clk, + sys_clk1_clk, + sys_clk1_3_clk, + sys_clk1_4_clk, + sys_clk1_6_clk, + sys_clk1_12_clk, + sys_clk2_clk, + sys_clk3_clk +}; + +#define KS2_CLK1_6 sys_clk0_6_clk + +/* PLL identifiers */ +enum pll_type_e { + CORE_PLL, + PASS_PLL, + TETRIS_PLL, + DDR3_PLL, +}; + +enum { + SPD800, + SPD1000, + SPD1200, + SPD1350, + SPD1400, + SPD_RSV +}; + +#define CORE_PLL_799 {CORE_PLL, 13, 1, 2} +#define CORE_PLL_983 {CORE_PLL, 16, 1, 2} +#define CORE_PLL_1167 {CORE_PLL, 19, 1, 2} +#define CORE_PLL_1228 {CORE_PLL, 20, 1, 2} +#define PASS_PLL_1228 {PASS_PLL, 20, 1, 2} +#define PASS_PLL_983 {PASS_PLL, 16, 1, 2} +#define PASS_PLL_1050 {PASS_PLL, 205, 12, 2} +#define TETRIS_PLL_491 {TETRIS_PLL, 8, 1, 2} +#define TETRIS_PLL_737 {TETRIS_PLL, 12, 1, 2} +#define TETRIS_PLL_799 {TETRIS_PLL, 13, 1, 2} +#define TETRIS_PLL_983 {TETRIS_PLL, 16, 1, 2} +#define TETRIS_PLL_1167 {TETRIS_PLL, 19, 1, 2} +#define TETRIS_PLL_1228 {TETRIS_PLL, 20, 1, 2} +#define DDR3_PLL_200 {DDR3_PLL, 4, 1, 2} +#define DDR3_PLL_400 {DDR3_PLL, 16, 1, 4} +#define DDR3_PLL_800 {DDR3_PLL, 16, 1, 2} +#define DDR3_PLL_333 {DDR3_PLL, 20, 1, 6} + +#endif diff --git a/arch/arm/include/asm/arch-keystone/clock.h b/arch/arm/include/asm/arch-keystone/clock.h index dae000e..bc31267 100644 --- a/arch/arm/include/asm/arch-keystone/clock.h +++ b/arch/arm/include/asm/arch-keystone/clock.h @@ -20,6 +20,10 @@ #include #endif +#ifdef CONFIG_SOC_K2L +#include +#endif + #define MAIN_PLL CORE_PLL #include