From patchwork Thu Sep 15 10:12:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 1678227 X-Patchwork-Delegate: ykai007@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4MStM31z2Pz1ypd for ; Thu, 15 Sep 2022 20:13:16 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 12EF0810F6; Thu, 15 Sep 2022 12:13:04 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=0leil.net Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by phobos.denx.de (Postfix, from userid 109) id 04E478110C; Thu, 15 Sep 2022 12:13:02 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.2 Received: from relay12.mail.gandi.net (relay12.mail.gandi.net [217.70.178.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 7CA2480F60 for ; Thu, 15 Sep 2022 12:12:59 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=0leil.net Authentication-Results: phobos.denx.de; spf=none smtp.mailfrom=foss+uboot@0leil.net Received: (Authenticated sender: foss@0leil.net) by mail.gandi.net (Postfix) with ESMTPSA id D1CF1200003; Thu, 15 Sep 2022 10:12:57 +0000 (UTC) From: Quentin Schulz To: Cc: sjg@chromium.org, philipp.tomsich@vrull.eu, kever.yang@rock-chips.com, u-boot@lists.denx.de, Quentin Schulz , Quentin Schulz Subject: [PATCH] rockchip: px30: support debug uart on UART0 Date: Thu, 15 Sep 2022 12:12:47 +0200 Message-Id: <20220915101247.796236-1-foss+uboot@0leil.net> X-Mailer: git-send-email 2.37.3 MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean From: Quentin Schulz UART0 can obviously also be used for debug uart in U-Boot, so let's add its support. Cc: Quentin Schulz Signed-off-by: Quentin Schulz Reviewed-by: Kever Yang --- arch/arm/include/asm/arch-rockchip/cru_px30.h | 19 ++++++++++ arch/arm/mach-rockchip/px30/px30.c | 37 ++++++++++++++++++- 2 files changed, 54 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/arch-rockchip/cru_px30.h b/arch/arm/include/asm/arch-rockchip/cru_px30.h index 732ca37040..b66277fc7f 100644 --- a/arch/arm/include/asm/arch-rockchip/cru_px30.h +++ b/arch/arm/include/asm/arch-rockchip/cru_px30.h @@ -445,5 +445,24 @@ enum { /* CRU_PMU_CLK_SEL0_CON */ CLK_PMU_PCLK_DIV_SHIFT = 0, CLK_PMU_PCLK_DIV_MASK = 0x1f << CLK_PMU_PCLK_DIV_SHIFT, + + /* CRU_PMU_CLKSEL3_CON */ + UART0_PLL_SEL_SHIFT = 14, + UART0_PLL_SEL_MASK = 3 << UART0_PLL_SEL_SHIFT, + UART0_PLL_SEL_GPLL = 0, + UART0_PLL_SEL_24M, + UART0_PLL_SEL_480M, + UART0_PLL_SEL_NPLL, + UART0_DIV_CON_SHIFT = 0, + UART0_DIV_CON_MASK = 0x1f << UART0_DIV_CON_SHIFT, + + /* CRU_PMU_CLKSEL4_CON */ + UART0_CLK_SEL_SHIFT = 14, + UART0_CLK_SEL_MASK = 3 << UART0_PLL_SEL_SHIFT, + UART0_CLK_SEL_UART0 = 0, + UART0_CLK_SEL_UART0_NP5, + UART0_CLK_SEL_UART0_FRAC, + UART0_DIVNP5_SHIFT = 0, + UART0_DIVNP5_MASK = 0x1f << UART0_DIVNP5_SHIFT, }; #endif diff --git a/arch/arm/mach-rockchip/px30/px30.c b/arch/arm/mach-rockchip/px30/px30.c index be70d30cc8..0641e6af0f 100644 --- a/arch/arm/mach-rockchip/px30/px30.c +++ b/arch/arm/mach-rockchip/px30/px30.c @@ -41,6 +41,7 @@ struct mm_region *mem_map = px30_mem_map; #define PMUGRF_BASE 0xff010000 #define GRF_BASE 0xff140000 #define CRU_BASE 0xff2b0000 +#define PMUCRU_BASE 0xff2bc000 #define VIDEO_PHY_BASE 0xff2e0000 #define SERVICE_CORE_ADDR 0xff508000 #define DDR_FW_BASE 0xff534000 @@ -198,6 +199,21 @@ enum { GPIO3A1_UART5_RX = 4, }; +/* PMUGRF_GPIO0BL_IOMUX */ +enum { + GPIO0B3_SHIFT = 6, + GPIO0B3_MASK = 0x3 << GPIO0B3_SHIFT, + GPIO0B3_GPIO = 0, + GPIO0B3_UART0_RX, + GPIO0B3_PMU_DEBUG1, + + GPIO0B2_SHIFT = 4, + GPIO0B2_MASK = 0x3 << GPIO0B2_SHIFT, + GPIO0B2_GPIO = 0, + GPIO0B2_UART0_TX, + GPIO0B2_PMU_DEBUG0, +}; + /* PMUGRF_GPIO0CL_IOMUX */ enum { GPIO0C1_SHIFT = 2, @@ -276,12 +292,16 @@ int arch_cpu_init(void) void board_debug_uart_init(void) { #if defined(CONFIG_DEBUG_UART_BASE) && \ - (CONFIG_DEBUG_UART_BASE == 0xff168000) && \ - (CONFIG_DEBUG_UART_CHANNEL != 1) + (((CONFIG_DEBUG_UART_BASE == 0xff168000) && \ + (CONFIG_DEBUG_UART_CHANNEL != 1)) || \ + CONFIG_DEBUG_UART_BASE == 0xff030000) static struct px30_pmugrf * const pmugrf = (void *)PMUGRF_BASE; #endif static struct px30_grf * const grf = (void *)GRF_BASE; static struct px30_cru * const cru = (void *)CRU_BASE; +#if defined(CONFIG_DEBUG_UART_BASE) && CONFIG_DEBUG_UART_BASE == 0xff030000 + static struct px30_pmucru * const pmucru = (void *)PMUCRU_BASE; +#endif #if defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff158000) /* uart_sel_clk default select 24MHz */ @@ -346,6 +366,19 @@ void board_debug_uart_init(void) GPIO3A2_MASK | GPIO3A1_MASK, GPIO3A2_UART5_TX << GPIO3A2_SHIFT | GPIO3A1_UART5_RX << GPIO3A1_SHIFT); +#elif defined(CONFIG_DEBUG_UART_BASE) && (CONFIG_DEBUG_UART_BASE == 0xff030000) + /* uart_sel_clk default select 24MHz */ + rk_clrsetreg(&pmucru->pmu_clksel_con[3], + UART0_PLL_SEL_MASK | UART0_DIV_CON_MASK, + UART0_PLL_SEL_24M << UART0_PLL_SEL_SHIFT | 0); + rk_clrsetreg(&pmucru->pmu_clksel_con[4], + UART0_CLK_SEL_MASK, + UART0_CLK_SEL_UART0 << UART0_CLK_SEL_SHIFT); + + rk_clrsetreg(&pmugrf->gpio0bl_iomux, + GPIO0B3_MASK | GPIO0B2_MASK, + GPIO0B3_UART0_RX << GPIO0B3_SHIFT | + GPIO0B2_UART0_TX << GPIO0B2_SHIFT); #else /* GRF_IOFUNC_CON0 */ enum {