From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bk5SK-0002HZ-FS for barebox@lists.infradead.org; Wed, 14 Sep 2016 08:22:12 +0000 From: Sascha Hauer Date: Wed, 14 Sep 2016 10:21:30 +0200 Message-Id: <1473841290-3935-2-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1473841290-3935-1-git-send-email-s.hauer@pengutronix.de> References: <1473841290-3935-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/2] ARM: i.MX6: Sabrelite: Add PBL console support To: Barebox List Add PBL console support to allow for better debugging. Signed-off-by: Sascha Hauer --- arch/arm/boards/freescale-mx6-sabrelite/lowlevel.c | 57 +++++++++++++++++++--- 1 file changed, 49 insertions(+), 8 deletions(-) diff --git a/arch/arm/boards/freescale-mx6-sabrelite/lowlevel.c b/arch/arm/boards/freescale-mx6-sabrelite/lowlevel.c index abfb77a..3b51e01 100644 --- a/arch/arm/boards/freescale-mx6-sabrelite/lowlevel.c +++ b/arch/arm/boards/freescale-mx6-sabrelite/lowlevel.c @@ -3,29 +3,70 @@ #include #include #include +#include +#include +#include +#include +#include extern char __dtb_imx6q_sabrelite_start[]; -ENTRY_FUNCTION(start_imx6q_sabrelite, r0, r1, r2) +static noinline void imx6q_sabrelite_start(void) { - void *fdt; + void __iomem *iomuxbase = IOMEM(MX6_IOMUXC_BASE_ADDR); + void __iomem *uart = IOMEM(MX6_UART2_BASE_ADDR); + + writel(0x4, iomuxbase + 0x0bc); + + imx6_ungate_all_peripherals(); + imx6_uart_setup(uart); + pbl_set_putc(imx_uart_putc, uart); + pr_debug("Freescale i.MX6q SabreLite\n"); + + imx6q_barebox_entry(__dtb_imx6q_sabrelite_start); +} + +ENTRY_FUNCTION(start_imx6q_sabrelite, r0, r1, r2) +{ imx6_cpu_lowlevel_init(); - fdt = __dtb_imx6q_sabrelite_start - get_runtime_offset(); + arm_early_mmu_cache_invalidate(); + + relocate_to_current_adr(); + setup_c(); + barrier(); - barebox_arm_entry(0x10000000, SZ_1G, fdt); + imx6q_sabrelite_start(); } extern char __dtb_imx6dl_sabrelite_start[]; -ENTRY_FUNCTION(start_imx6dl_sabrelite, r0, r1, r2) +static noinline void imx6dl_sabrelite_start(void) { - void *fdt; + void __iomem *iomuxbase = IOMEM(MX6_IOMUXC_BASE_ADDR); + void __iomem *uart = IOMEM(MX6_UART2_BASE_ADDR); + + writel(0x4, iomuxbase + 0x16c); + + imx6_ungate_all_peripherals(); + imx6_uart_setup(uart); + pbl_set_putc(imx_uart_putc, uart); + pr_debug("Freescale i.MX6q SabreLite\n"); + + imx6q_barebox_entry(__dtb_imx6q_sabrelite_start); +} + +ENTRY_FUNCTION(start_imx6dl_sabrelite, r0, r1, r2) +{ imx6_cpu_lowlevel_init(); - fdt = __dtb_imx6dl_sabrelite_start - get_runtime_offset(); + arm_early_mmu_cache_invalidate(); + + relocate_to_current_adr(); + setup_c(); + barrier(); - barebox_arm_entry(0x10000000, SZ_1G, fdt); + imx6dl_sabrelite_start(); } -- 2.8.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox