From patchwork Tue Jul 31 06:39:50 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chao Xie X-Patchwork-Id: 1258341 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 52228DF27F for ; Tue, 31 Jul 2012 06:59:16 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Sw6KR-0000j9-JI; Tue, 31 Jul 2012 06:53:15 +0000 Received: from na3sys009aog109.obsmtp.com ([74.125.149.201]) by merlin.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1Sw68Z-0005Zg-Jl for linux-arm-kernel@lists.infradead.org; Tue, 31 Jul 2012 06:41:00 +0000 Received: from MSI-MTA.marvell.com ([65.219.4.132]) (using TLSv1) by na3sys009aob109.postini.com ([74.125.148.12]) with SMTP ID DSNKUBd96RrHprWwaApIfVUAVhJ6qtqtcpLb@postini.com; Mon, 30 Jul 2012 23:40:59 PDT Received: from maili.marvell.com ([10.68.76.210]) by MSI-MTA.marvell.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 30 Jul 2012 23:39:45 -0700 Received: from localhost (unknown [10.38.36.110]) by maili.marvell.com (Postfix) with ESMTP id 0B1DA4E510; Mon, 30 Jul 2012 23:39:44 -0700 (PDT) From: Chao Xie To: haojian.zhuang@gmail.com, mturquette@linaro.org, arnd@arndb.de, viresh.linux@gmail.com, s.hauer@pengutronix.de, chao.xie@marvell.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/5] clk: mmp: add clock definition for pxa168 Date: Tue, 31 Jul 2012 14:39:50 +0800 Message-Id: <1343716792-10399-2-git-send-email-xiechao.mail@gmail.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1343716792-10399-1-git-send-email-xiechao.mail@gmail.com> References: <1343716792-10399-1-git-send-email-xiechao.mail@gmail.com> X-OriginalArrivalTime: 31 Jul 2012 06:39:45.0389 (UTC) FILETIME=[45F669D0:01CD6EE7] X-Spam-Note: CRM114 invocation failed X-Spam-Note: SpamAssassin invocation failed Cc: Chao Xie X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Chao Xie Initialize the clocks for pxa168 Signed-off-by: Chao Xie --- drivers/clk/mmp/Makefile | 2 + drivers/clk/mmp/clk-pxa168.c | 268 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 270 insertions(+), 0 deletions(-) create mode 100644 drivers/clk/mmp/clk-pxa168.c diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index a263cb7..8bbf882 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -3,3 +3,5 @@ # obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-pll2.o + +obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o diff --git a/drivers/clk/mmp/clk-pxa168.c b/drivers/clk/mmp/clk-pxa168.c new file mode 100644 index 0000000..7af4407 --- /dev/null +++ b/drivers/clk/mmp/clk-pxa168.c @@ -0,0 +1,268 @@ +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" + +#define APBC_RTC APBC_REG(0x28) +#define APBC_TWSI0 APBC_REG(0x2c) +#define APBC_KPC APBC_REG(0x30) +#define APBC_UART0 APBC_REG(0x00) +#define APBC_UART1 APBC_REG(0x04) +#define APBC_GPIO APBC_REG(0x08) +#define APBC_PWM0 APBC_REG(0x0c) +#define APBC_PWM1 APBC_REG(0x10) +#define APBC_PWM2 APBC_REG(0x14) +#define APBC_PWM3 APBC_REG(0x18) +#define APBC_SSP0 APBC_REG(0x81c) +#define APBC_SSP1 APBC_REG(0x820) +#define APBC_SSP2 APBC_REG(0x84c) +#define APBC_SSP3 APBC_REG(0x858) +#define APBC_SSP4 APBC_REG(0x85c) +#define APBC_TWSI1 APBC_REG(0x6c) +#define APBC_UART2 APBC_REG(0x70) + +#define APMU_SDH0 APMU_REG(0x54) +#define APMU_SDH1 APMU_REG(0x58) +#define APMU_USB APMU_REG(0x5c) +#define APMU_DISP0 APMU_REG(0x4c) +#define APMU_CCIC0 APMU_REG(0x50) +#define APMU_DFC APMU_REG(0x60) + +static DEFINE_SPINLOCK(mmp_clk_lock); + +enum pll_clk { + clk32, + pll1, pll1_2, pll1_4, pll1_8, pll1_16, + pll1_6, pll1_12, pll1_24, pll1_48, pll1_96, + pll1_13, pll1_13_1_5, pll1_2_1_5, pll1_3_16, + pll2, + vctcxo, + uart_pll, + pll_max, +}; + +enum apbc_clk { + uart0_clk, uart1_clk, uart2_clk, + pwm0_clk, pwm1_clk, pwm2_clk, pwm3_clk, + twsi0_clk, twsi1_clk, + ssp0_clk, ssp1_clk, ssp2_clk, + ssp3_clk, ssp4_clk, + gpio_clk, kpc_clk, rtc_clk, + uart0_mux_clk, uart1_mux_clk, uart2_mux_clk, + ssp0_mux_clk, ssp1_mux_clk, ssp2_mux_clk, + ssp3_mux_clk, ssp4_mux_clk, + apbc_max, +}; + +enum apmu_clk { + sdh0_mux_clk, sdh1_mux_clk, + sdh0_clk, sdh1_clk, + dfc_clk, + usb_clk, sph_clk, + disp0_mux_clk, disp0_clk, + disp0_hclk, + ccic0_mux_clk, ccic0_clk, + ccic0_phy_mux_clk, ccic0_phy_clk, ccic0_sphy_div_clk, ccic0_sphy_clk, + apmu_max, +}; + +static struct clk_factor_masks factor_masks = { + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct clk_factor_tbl factor_tbl[] = { + {.num = 8125, .den = 1536}, /* 14.745MHZ */ +}; + +static const char *uart_parent[] = {"pll1_3_16", "uart_pll"}; +static const char *ssp_parent[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; +static const char *sdh_parent[] = {"pll1_12", "pll1_13"}; +static const char *disp_parent[] = {"pll1_2", "pll1_12"}; +static const char *ccic_parent[] = {"pll1_2", "pll1_12"}; +static const char *ccic_phy_parent[] = {"pll1_6", "pll1_12"}; + +void __init pxa168_clk_init(void) +{ + struct clk *pll_clks[pll_max]; + struct clk *apbc_clks[apbc_max]; + struct clk *apmu_clks[apmu_max]; + /* all root clocks */ + MMP_CLK_REGISTER_FIXED_RATE(pll_clks, clk32, 32000); + MMP_CLK_REGISTER_FIXED_RATE(pll_clks, vctcxo, 26000000); + MMP_CLK_REGISTER_FIXED_RATE(pll_clks, pll1, 624000000); + pll_clks[pll2] = mmp_clk_register_pll2("pll2", "vctcxo", 0); + clk_register_clkdev(pll_clks[pll2], NULL, "pll2"); + + /* PLL1 */ + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_2, pll1, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_4, pll1_2, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_8, pll1_4, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_16, pll1_8, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_6, pll1_2, + CLK_SET_RATE_PARENT, 1, 3); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_12, pll1_6, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_24, pll1_12, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_48, pll1_24, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_96, pll1_48, + CLK_SET_RATE_PARENT, 1, 2); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_13, pll1, + CLK_SET_RATE_PARENT, 1, 13); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_13_1_5, pll1_13, + CLK_SET_RATE_PARENT, 2, 3); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_2_1_5, pll1_2, + CLK_SET_RATE_PARENT, 2, 3); + MMP_CLK_REGISTER_FIXED_FACTOR(pll_clks, pll1_3_16, pll1, + CLK_SET_RATE_PARENT, 3, 16); + pll_clks[uart_pll] = mmp_clk_register_factor("uart_pll", "pll1_4", 0, + MPMU_REG(0x14), &factor_masks, factor_tbl, + ARRAY_SIZE(factor_tbl)); + clk_set_rate(pll_clks[uart_pll], 14745600); + /* PLL2 */ + + /* APBC devices without mux parent */ + MMP_CLK_REGISTER_APBC(apbc_clks, twsi0_clk, pll1_13_1_5, 10, + APBC_TWSI0, 0, "pxa2xx-i2c.0", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, twsi1_clk, pll1_13_1_5, 10, + APBC_TWSI1, 0, "pxa2xx-i2c.1", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, gpio_clk, vctcxo, 10, + APBC_GPIO, 0, "pxa-gpio", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, kpc_clk, clk32k, 10, + APBC_KPC, 0, "pxa27x-keypad", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, rtc_clk, clk32k, 10, + APBC_RTC, APBC_POWER_CTRL, "sa1100-rtc", NULL, + &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, pwm0_clk, pll1_48, 10, + APBC_PWM0, 0, "pxa168-pwm.0", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, pwm1_clk, pll1_48, 10, + APBC_PWM1, 0, "pxa168-pwm.1", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, pwm2_clk, pll1_48, 10, + APBC_PWM2, 0, "pxa168-pwm.2", NULL, &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, pwm3_clk, pll1_48, 10, + APBC_PWM3, 0, "pxa168-pwm.3", NULL, &mmp_clk_lock); + + /* APBC devices with mux parent */ + MMP_CLK_REGISTER_MUX(apbc_clks, uart0_mux_clk, uart_parent, + ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT, + APBC_UART0, 4, 3, 0, NULL, "uart_mux.0", + &mmp_clk_lock); + clk_set_parent(apbc_clks[uart0_mux_clk], pll_clks[uart_pll]); + MMP_CLK_REGISTER_APBC(apbc_clks, uart0_clk, uart0_mux_clk, 10, + APBC_UART0, 0, "pxa2xx-uart.0", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, uart1_mux_clk, uart_parent, + ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT, + APBC_UART1, 4, 3, 0, NULL, "uart_mux.1", + &mmp_clk_lock); + clk_set_parent(apbc_clks[uart1_mux_clk], pll_clks[uart_pll]); + MMP_CLK_REGISTER_APBC(apbc_clks, uart1_clk, uart1_mux_clk, 10, + APBC_UART1, 0, "pxa2xx-uart.1", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, uart2_mux_clk, uart_parent, + ARRAY_SIZE(uart_parent), CLK_SET_RATE_PARENT, + APBC_UART2, 4, 3, 0, NULL, "uart_mux.2", + &mmp_clk_lock); + clk_set_parent(apbc_clks[uart2_mux_clk], pll_clks[uart_pll]); + MMP_CLK_REGISTER_APBC(apbc_clks, uart2_clk, uart2_mux_clk, 10, + APBC_UART2, 0, "pxa2xx-uart.2", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, ssp0_mux_clk, ssp_parent, + ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT, + APBC_SSP0, 4, 3, 0, NULL, "ssp_mux.0", &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, ssp0_clk, ssp0_mux_clk, 10, + APBC_SSP0, 0, "pxa168-ssp.0", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, ssp1_mux_clk, ssp_parent, + ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT, + APBC_SSP1, 4, 3, 0, NULL, "ssp_mux.1", &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, ssp1_clk, ssp1_mux_clk, 10, + APBC_SSP1, 0, "pxa168-ssp.1", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, ssp2_mux_clk, ssp_parent, + ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT, + APBC_SSP2, 4, 3, 0, NULL, "ssp_mux.2", &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, ssp2_clk, ssp2_mux_clk, 10, + APBC_SSP2, 0, "pxa168-ssp.2", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, ssp3_mux_clk, ssp_parent, + ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT, + APBC_SSP3, 4, 3, 0, NULL, "ssp_mux.3", &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, ssp3_clk, ssp3_mux_clk, 10, + APBC_SSP3, 0, "pxa168-ssp.3", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apbc_clks, ssp4_mux_clk, ssp_parent, + ARRAY_SIZE(ssp_parent), CLK_SET_RATE_PARENT, + APBC_SSP4, 4, 3, 0, NULL, "ssp_mux.4", &mmp_clk_lock); + MMP_CLK_REGISTER_APBC(apbc_clks, ssp4_clk, ssp4_mux_clk, 10, + APBC_SSP4, 0, "pxa168-ssp.4", NULL, &mmp_clk_lock); + + /* APMU devices */ + /* nand */ + MMP_CLK_REGISTER_APMU(apmu_clks, dfc_clk, pll1_4, APMU_DFC, + 0x19b, "pxa3xx-nand.0", NULL, &mmp_clk_lock); + /* sdh */ + MMP_CLK_REGISTER_MUX(apmu_clks, sdh0_mux_clk, sdh_parent, + ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT, + APMU_SDH0, 6, 1, 0, NULL, "sdh_mux.0", &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, sdh0_clk, sdh_mux_clk, APMU_SDH0, + 0x1b, "sdhci-pxa.0", NULL, &mmp_clk_lock); + + MMP_CLK_REGISTER_MUX(apmu_clks, sdh1_mux_clk, sdh_parent, + ARRAY_SIZE(sdh_parent), CLK_SET_RATE_PARENT, + APMU_SDH1, 6, 1, 0, NULL, "sdh_mux.1", &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, sdh1_clk, sdh1_mux_clk, APMU_SDH1, + 0x1b, "sdhci-pxa.1", NULL, &mmp_clk_lock); + + /* usb */ + MMP_CLK_REGISTER_APMU(apmu_clks, usb_clk, usb_pll, APMU_USB, + 0x9, NULL, "usb-clk", &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, sph_clk, usb_pll, APMU_USB, + 0x12, NULL, "sph-clk", &mmp_clk_lock); + + /* display */ + MMP_CLK_REGISTER_MUX(apmu_clks, disp0_mux_clk, disp_parent, + ARRAY_SIZE(disp_parent), CLK_SET_RATE_PARENT, + APMU_DISP0, 6, 1, 0, NULL, "disp_mux.0", + &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, disp0_clk, disp0_mux_clk, APMU_DISP0, + 0x1b, "mmp-disp.0", "fnclk", &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, disp0_hclk, disp0_mux_clk, APMU_DISP0, + 0x24, "mmp-disp.0", "hclk", &mmp_clk_lock); + + /* ccic */ + MMP_CLK_REGISTER_MUX(apmu_clks, ccic0_mux_clk, ccic_parent, + ARRAY_SIZE(ccic_parent), CLK_SET_RATE_PARENT, + APMU_CCIC0, 6, 1, 0, NULL, "ccic_mux.0", + &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, ccic0_clk, ccic0_mux_clk, APMU_CCIC0, + 0x1b, "mmp-ccic.0", "fnclk", &mmp_clk_lock); + MMP_CLK_REGISTER_MUX(apmu_clks, ccic0_phy_mux_clk, ccic_phy_parent, + ARRAY_SIZE(ccic_phy_parent), CLK_SET_RATE_PARENT, + APMU_CCIC0, 7, 1, 0, NULL, "ccic_phy_mux.0", + &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, ccic0_phy_clk, ccic0_phy_mux_clk, + APMU_CCIC0, 0x24, "mmp-ccic.0", "phyclk", + &mmp_clk_lock); + MMP_CLK_REGISTER_DIV(apmu_clks, ccic0_sphy_div_clk, ccic0_mux_clk, + 0, APMU_CCIC0, 10, 5, 0, + "mmp-ccic.0", "sphyclk_div", &mmp_clk_lock); + MMP_CLK_REGISTER_APMU(apmu_clks, ccic0_sphy_clk, ccic0_sphy_div_clk, + APMU_CCIC0, 0x300, "mmp-ccic.0", "sphyclk", + &mmp_clk_lock); + +}